Module dscript
================================================================================ PIZZA.DSCRIPT Module Documentation ================================================================================
The PIZZA.DSCRIPT module is a versatile tool for dynamically generating and managing pizza.scripts, especially in conjunction with LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator). This module provides powerful features to create complex, parameterized scripts, manage multiple sections, and flexibly concatenate scripts to form pipelines. It offers advanced control over script execution and generation.
Overview:
- pizza.script: Use this to define reusable codelets or scriptlets stored in maintainable libraries.
- pizza.dscript: Use this to dynamically generate codelets or scriptlets directly in your code, allowing for flexible, runtime script generation.
The output of pizza.dscript.script() is a complete script instance, similar to a standard pizza.script.
These scripts can be managed like any pizza.script, allowing you to combine them using the + or |
operators and integrate them into pizza.pipescripts for building complex, multi-step workflows.
Key Features:
- Dynamic Script Generation:
-
pizza.dscriptallows for the generation of scripts dynamically within your code. This means that codelets and scriptlets can be constructed at runtime, offering flexibility in handling complex scenarios. -
Combining Scripts:
-
The generated scripts can be combined using operators like
+or|, enabling you to merge multiple script sections seamlessly. This is especially useful for creating modular scripts that can be reused across different contexts or experiments. -
Saving and Loading Scripts:
-
pizza.dscript.save()andpizza.dscript.load()enable you to save and load complex scripts as text templates, independent of both Python and LAMMPS. This functionality allows for the deployment of sophisticated scripts without requiring the full script class libraries (commonly referred to as "workshops" in Pizza3). -
Leveraging AI for Rapid Template Generation:
-
You can even leverage Large Language Models (LLMs) to generate templates quickly. This feature allows for automation and faster script generation, particularly useful for deploying templated workflows or codelets.
-
Non-linear Execution:
- It's important to note that pizza.scripts and pizza.dscripts are not directly equivalent to LAMMPS code. They can be executed statically and non-linearly, without needing LAMMPS to be involved. This makes the framework particularly useful when managing large LAMMPS simulations that span multiple submodules.
Applications:
The PIZZA.DSCRIPT module is particularly useful when you need to: - Dynamically create and manage LAMMPS script sections. - Merge, manipulate, and execute multiple script sections with predefined or user-defined variables. - Generate scripts with conditional sections and custom execution logic, enabling the handling of complex simulations and workflows.
The modular nature of pizza.dscript makes it well-suited for scenarios where you need to reuse various submodules of
LAMMPS code or mix them with pure Python logic for more advanced control.
Key Classes:
-
lambdaScriptdata: Holds parameters and definitions for script execution. This class encapsulates the data and logic needed for the dynamic generation of script elements. -
lambdaScript: Wraps adscriptobject to generate apizza.script instancefrom its contents. This class is essential for converting dynamically generateddscriptobjects into reusable, executable script instances. -
dscript: Manages and stores multiple script lines/items asScriptTemplateobjects, supporting dynamic execution and the concatenation of script sections. Thedscriptclass allows for flexible script construction and execution, making it a core component for generating dynamic LAMMPS scripts.
Notes:
- Script Composition: Generated scripts can span several submodules, allowing for the reuse of script components in different contexts. This feature enables a modular approach to script generation.
- Execution Flexibility: Since
pizza.dscriptscripts are not bound to LAMMPS directly, they can be executed independently, making them highly flexible for preprocessing, debugging, or running custom logic within a LAMMPS-related workflow.
Important Distinction between PIZZA.DSCRIPT and PIZZA.SCRIPT: (with possible evolution in the future)
- PIZZA.DSCRIPT stores the DEFINITIONS in lambdaScriptdata objects based on pizza.private.mstruct.paramauto The practical consequence is that all variables should be within {} such as ${variable}. The definitions will be redordered to authorize execution
- PIZZA.SCRIPT stores the DEFINITIONS in Scriptdata objects based on pizza.private.mstruct.param The variables can be $myvar or ${myvar}. The definition order is important.
Practical Usage:
- Scripts can be combined dynamically.
- Variables in script templates are handled automatically, allowing flexible script execution.
- Concatenate multiple scripts, with automatic merging and non-overwriting of variables.
The concept of TEMPLATING is managed via shorthands
from dscript import dscript
```python
# Create a dscript instance
S = dscript(name="MyScript")
# Define script sections
S[0] = "instruction 1"
S[1] = "${var1} + ${var2}"
# Set definitions
S.DEFINITIONS.var1 = "1"
S.DEFINITIONS.var2 = "2"
# Enable evaluation
S[1].eval = True
# Generate the script
result = S.do()
print(result)
# convert it into pizza.script
s=S.script()
rs = s.do()
print(rs)
```
Chat GPT teaching instructions: Copy and paste these instructions to teach chatGPT how to convert in LAMMPS code in pizza.dscript() -----------------------------[ start here ]--------------------------------------------------
DSCRIPT SAVE FILE Format Instructions:
Each DSCRIPT file begins with the line # DSCRIPT SAVE FILE. The file is divided into sections: Global Parameters, Definitions, Template, and Attributes.
1. Global Parameters Section: Enclosed in {} and contains key-value pairs where values can be integers, floats, strings, booleans, or lists. Example:
# GLOBAL PARAMETERS
{
SECTIONS = ['SECTION1', 'SECTION2'],
section = 0,
position = 0,
role = "dscript instance",
description = "A description",
userid = "dscript",
version = 0.1,
verbose = False
}
- Definitions Section: Defines variables as key-value pairs, which can reference other variables using
${}. Example:
# DEFINITIONS (number of definitions=X)
var1 = value1
var2 = "${var1}"
- Template Section: Contains key-value pairs for blocks of script content. Single-line content is written as
key: value. Multi-line content is enclosed in square brackets[]. Example:
# TEMPLATE (number of lines=X)
block1: command using ${var1}
block2: [
multi-line command 1
multi-line command 2
]
- Attributes Section: Optional attributes are attached to each block as key-value pairs inside curly braces
{}. Example:
# ATTRIBUTES (number of lines with explicit attributes=X)
block1: {facultative=True, eval=True}
Definitions can be dynamically substituted into the templates using ${} notation, and the parser should handle both single-line and multi-line templates.
-----------------------------[ end here ]--------------------------------------------------
================================================================================
Production Example: Dynamic LAMMPS Script Generation Using `dscript` and `script`
================================================================================
This example illustrates how to dynamically generate and manage LAMMPS scripts
using the `dscript` and `script` classes. The goal is to demonstrate the flexibility
of these classes in handling script sections, overriding parameters, and generating
a script with conditions and dynamic content.
Overview:
---------
In this example, we:
- Define global `DEFINITIONS` that hold script parameters.
- Create a script template with multiple lines/items, each identified by a unique key.
- Add conditions to script lines/items to control their inclusion based on the state of variables.
- Overwrite `DEFINITIONS` at runtime to customize the script's behavior.
- Generate and execute the script using the `do()` method.
Key Classes Used:
-----------------
- `dscript`: Manages multiple script lines and their dynamic execution.
- `lamdaScript`: Wraps a `dscript` object to generate a script instance from its contents.
Practical Steps:
----------------
1. Initialize a `dscript` object and define global variables (DEFINITIONS).
2. Create script lines/items using keys to identify each line.
3. Apply conditions to script lines/items to control their execution.
4. Overwrite or add new variables to `DEFINITIONS` at runtime.
5. Generate the final script using `lamdaScript` and execute it.
Example:
--------
# Initialize the dscript object
R = dscript(name="ProductionExample")
# Define global variables (DEFINITIONS)
R.DEFINITIONS.dimension = 3
R.DEFINITIONS.units = "$si"
R.DEFINITIONS.boundary = ["sm","sm","sm"]
R.DEFINITIONS.atom_style = "$smd"
R.DEFINITIONS.atom_modify = ["map","array"]
R.DEFINITIONS.comm_modify = ["vel","yes"]
R.DEFINITIONS.neigh_modify = ["every",10,"delay",0,"check","yes"]
R.DEFINITIONS.newton = "$off"
# Define the script template, with each line identified by a key
R[0] = "% ${comment}"
R["dim"] = "dimension ${dimension}" # Line identified as 'dim'
R["unit"] = "units ${units}" # Line identified as 'unit'
R["bound"] = "boundary ${boundary}"
R["astyle"] = "atom_style ${atom_style}"
R["amod"] = "atom_modify ${atom_modify}"
R["cmod"] = "comm_modify ${comm_modify}"
R["nmod"] = "neigh_modify ${neigh_modify}"
R["newton"] = "newton ${newton}"
# Apply a condition to the 'astyle' line; it will only be included if ${atom_style} is defined
R["astyle"].condition = "${atom_style}"
# Revise the DEFINITIONS, making ${atom_style} undefined
R.DEFINITIONS.atom_style = ""
# Generate a script instance, overwriting the 'units' variable and adding a comment
sR = R.script(units="$lj", # Use "$" to prevent immediate evaluation
comment="$my first dynamic script")
# Execute the script to get the final content
ssR = sR.do()
# Print the generated script as text
print(ssR)
# Save your script
R.save("myscript.txt")
# Load again your script
Rcopy = dsave.load("myscript.txt")
More Compact Example:
---------------------
# Initialization
R2 = dscript(name="ProductionExample2")
# Define global variables (DEFINITIONS) for the script
R2.DEFINITIONS.dimension = 3
R2.DEFINITIONS.units = "$si"
R2.DEFINITIONS.boundary = ["sm", "sm", "sm"]
R2.DEFINITIONS.atom_modify = ["map", "array"]
R2.DEFINITIONS.comm_modify = ["vel", "yes"]
R2.DEFINITIONS.neigh_modify = ["every", 10, "delay", 0, "check", "yes"]
R2.DEFINITIONS.newton = "$off"
R2.DEFINITIONS.atom_style = "$smd"
# Define the script template with a multiple line syntax
R2["code"] = "" "
% ${comment}
dimension ${dimension}
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
"" "
# Generate a script instance, overwriting the 'units' variable and adding a comment
sR2 = R2.script(comment="$my first compact dscript")
ssR2 = sR2.do()
# Print the generated script
print(ssR2)
Expected Output:
----------------
Depending on the conditions and overwritten variables, the output script should
reflect the updated `DEFINITIONS` and the conditionally included lines.
For instance:
- The line for `atom_style` will be omitted because `atom_style` is undefined.
- The script will include the custom units and comment specified at runtime.
Some Comments:
--------------
pizza.dscript does not not require the definition of modules, submodules and so on.
For comparison, pizza.script requires managing directly classes
Usage Example
-------------
```python
from pizza.script import script
class scriptexample(script):
description = "demonstrate commutativity of additions"
verbose = True
DEFINITIONS = scriptdata(
X = 10,
Y = 20,
R1 = "${X}+${Y}",
R2 = "${Y}+${X}"
)
TEMPLATE = "" "
# Property of the addition
${R1} = ${X} + ${Y}
${R2} = ${Y} + ${X}
"" "
s1 = scriptexample()
s1.do()
```
Load and Save features:
-----------------------
use dscript.load() and dscript.save() methods
DSCRIPT SAVE FILE Syntax:
--------------------------
A DSCRIPT SAVE FILE is a text-based representation of script instances that are dynamically loaded or saved. It consists of key sections that define global parameters, variables (definitions), script templates, and attributes. The file format is structured and flexible, allowing both minimal and extended configurations depending on the level of detail required.
### Minimal DSCRIPT File
A minimal DSCRIPT SAVE FILE includes the template section, which defines the script's core structure. The template assigns content to variables, which can then be dynamically evaluated and modified during script execution.
Example of a minimal DSCRIPT SAVE FILE:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# DSCRIPT SAVE FILE
0: % ${comment}
dim: dimension ${dimension}
unit: units ${units}
bound: boundary ${boundary}
astyle: atom_style ${atom_style}
amod: atom_modify ${atom_modify}
cmod: comm_modify ${comm_modify}
nmod: neigh_modify ${neigh_modify}
newton: newton ${newton}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Example of a compact DSCRIPT SAVE FILE:
Note the position of the []
Use % to keep comments
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# DSCRIPT SAVE FILE
mytemplate: [
% ${comment}
dimension ${dimension}
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- **Required header**: The file must start with the line `# DSCRIPT SAVE FILE`. This is mandatory and serves to authenticate the file as a valid DSCRIPT file.
- **Template section**: Each line contains a variable key followed by the content. Variables (e.g., `${dimension}`) are placeholders that will be replaced during script execution. The format is `key: content`, where `key` is a unique identifier and `content` represents the script logic.
### Extended DSCRIPT File
An extended DSCRIPT file includes additional sections such as global parameters, definitions, templates, and attributes. These provide more control and flexibility over script behavior and configuration.
Example of an extended DSCRIPT SAVE FILE:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# DSCRIPT SAVE FILE
# generated on 20XX-XX-XX on user@localhost
# name = "ProductionExample"
# path = "/your/path/ProductionExample.txt"
# GLOBAL PARAMETERS
{
SECTIONS = ['DYNAMIC'],
section = 0,
position = 0,
role = 'dscript instance',
description = 'dynamic script',
userid = 'dscript',
version = 0.1,
verbose = False
}
# DEFINITIONS (number of definitions=9)
dimension=3
units=$si
boundary=['sm', 'sm', 'sm']
atom_style=""
atom_modify=['map', 'array']
comm_modify=['vel', 'yes']
neigh_modify=['every', 10, 'delay', 0, 'check', 'yes']
newton=$off
comment=${comment}
# TEMPLATE (number of lines=9)
0: % ${comment}
dim: dimension ${dimension}
unit: units ${units}
bound: boundary ${boundary}
astyle: atom_style ${atom_style}
amod: atom_modify ${atom_modify}
cmod: comm_modify ${comm_modify}
nmod: neigh_modify ${neigh_modify}
newton: newton ${newton}
# ATTRIBUTES (number of lines with explicit attributes=9)
0:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
dim:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
unit:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
bound:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
astyle:{facultative=False, eval=False, readonly=False, condition='${atom_style}', condeval=False, detectvar=True}
amod:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
cmod:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
nmod:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
newton:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### Detailed Explanation of "DSCRIPT SAVE FILE" Sections:
1. **Global Parameters**:
- Defined between `{...}` and describe the overall configuration of the script.
- Common parameters include `SECTIONS`, `section`, `position`, `role`, `description`, `userid`, `version`, and `verbose`.
- These parameters help control the behavior and structure of the script instance.
2. **Definitions**:
- The `DEFINITIONS` section lists key-value pairs, where each key is a variable, and its value can be any valid Python data type (e.g., integers, strings, lists).
- Example: `dimension=3`, `units=$si`, `boundary=['sm', 'sm', 'sm']`.
- Variables starting with a `$` (e.g., `$si`) are typically placeholders or dynamic variables.
3. **Template**:
- The `TEMPLATE` section defines the actual content of the script. Each line is in the format `key: content`, where `key` is a unique identifier, and `content` includes placeholders for variables (e.g., `${dimension}`).
- Example: `dim: dimension ${dimension}`.
- The template is where variables from the `DEFINITIONS` section are substituted dynamically.
4. **Attributes**:
- The `ATTRIBUTES` section defines the properties of each template entry. Each line associates a key with a dictionary of attributes (e.g., `facultative`, `eval`, `readonly`).
- Example: `astyle:{facultative=False, eval=False, readonly=False, condition='${atom_style}', condeval=False, detectvar=True}`.
- The attributes control how each template line behaves (e.g., whether it's evaluated, whether it depends on a condition, etc.).
### Adding Comments:
- Comments are added by starting a line with `#`. Comments can appear anywhere in the file, and they will be ignored during the loading process.
- Example:
```
# This is a comment
dim: dimension ${dimension} # Another comment
```
- Comments are typically used for documentation purposes within the DSCRIPT file, such as describing sections or explaining template logic.
### Imperative Components:
- **Header**: The line `# DSCRIPT SAVE FILE` must be present at the beginning of the file. It authenticates the file as a valid DSCRIPT file.
- **Template**: At least one template entry must be defined, as the template represents the main script content.
### Accessory Components:
- **Variable Substitution**: Variables (e.g., `${dimension}`) must be defined in the `DEFINITIONS` section to be substituted dynamically in the template content.
- **Attributes (Optional)**: Attributes are optional but provide more control over the template behavior when specified.
readonly=False, condition=None, condeval=False, detectvar=True}.
### Flexible structure
- **Global Parameters** can be defined anywhere but in a single block
- **Template** and **Attributes** lines can be mixed together.
Production example (using last features)
------------------
```python
mydscriptfile = '''
# GLOBAL DEFINITIONS (number of definitions=4)
dumpfile = $dump.LAMMPS
dumpdt = 50
thermodt = 100
runtime = 5000
# TEMPLATES (number of items=24)
# LOCAL DEFINITIONS for key '0'
dimension = 3
units = $si
boundary = ['f', 'f', 'f']
atom_style = $smd
atom_modify = ['map', 'array']
comm_modify = ['vel', 'yes']
neigh_modify = ['every', 10, 'delay', 0, 'check', 'yes']
newton = $off
name = $SimulationBox
0: [
% --------------[ Initialization Header (helper) for "${name}" ]--------------
# set a parameter to None or "" to remove the definition
dimension ${dimension}
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
# ------------------------------------------
]
# LOCAL DEFINITIONS for key '1'
lattice_style = $sc
lattice_scale = 0.0008271
lattice_spacing = [0.0008271, 0.0008271, 0.0008271]
1: [
% --------------[ LatticeHeader 'helper' for "${name}" ]--------------
lattice ${lattice_style} ${lattice_scale} spacing ${lattice_spacing}
# ------------------------------------------
]
# LOCAL DEFINITIONS for key '2'
xmin = -0.03
xmax = 0.03
ymin = -0.01
ymax = 0.01
zmin = -0.03
zmax = 0.03
nbeads = 3
2: [
% --------------[ Box Header 'helper' for "${name}" ]--------------
region box block ${xmin} ${xmax} ${ymin} ${ymax} ${zmin} ${zmax}
create_box ${nbeads} box
# ------------------------------------------
]
# LOCAL DEFINITIONS for key '3'
ID = $LowerCylinder
style = $cylinder
3: % variables to be used for ${ID} ${style} ]
# LOCAL DEFINITIONS for key '4'
ID = $CentralCylinder
4: % variables to be used for ${ID} ${style}
# LOCAL DEFINITIONS for key '5'
ID = $UpperCylinder
5: % variables to be used for ${ID} ${style}
# LOCAL DEFINITIONS for key '6'
args = ['z', 0.0, 0.0, 36.27130939426913, 0.0, 6.045218232378189]
side = ""
move = ""
rotate = ""
open = ""
ID = $LowerCylinder
units = ""
6: [
% Create region ${ID} ${style} args ... (URL: https://docs.lammps.org/region.html)
# keywords: side, units, move, rotate, open
# values: in|out, lattice|box, v_x v_y v_z, v_theta Px Py Pz Rx Ry Rz, integer
region ${ID} ${style} ${args} ${side}${units}${move}${rotate}${open}
]
# LOCAL DEFINITIONS for key '7'
ID = $CentralCylinder
args = ['z', 0.0, 0.0, 36.27130939426913, 6.045218232378189, 18.135654697134566]
7: [
% Create region ${ID} ${style} args ... (URL: https://docs.lammps.org/region.html)
# keywords: side, units, move, rotate, open
# values: in|out, lattice|box, v_x v_y v_z, v_theta Px Py Pz Rx Ry Rz, integer
region ${ID} ${style} ${args} ${side}${units}${move}${rotate}${open}
]
# LOCAL DEFINITIONS for key '8'
ID = $UpperCylinder
args = ['z', 0.0, 0.0, 36.27130939426913, 18.135654697134566, 24.180872929512756]
8: [
% Create region ${ID} ${style} args ... (URL: https://docs.lammps.org/region.html)
# keywords: side, units, move, rotate, open
# values: in|out, lattice|box, v_x v_y v_z, v_theta Px Py Pz Rx Ry Rz, integer
region ${ID} ${style} ${args} ${side}${units}${move}${rotate}${open}
]
# LOCAL DEFINITIONS for key '9'
ID = $LowerCylinder
beadtype = 1
9: [
% Create atoms of type ${beadtype} for ${ID} ${style} (https://docs.lammps.org/create_atoms.html)
create_atoms ${beadtype} region ${ID}
]
# LOCAL DEFINITIONS for key '10'
ID = $CentralCylinder
beadtype = 2
10: [
% Create atoms of type ${beadtype} for ${ID} ${style} (https://docs.lammps.org/create_atoms.html)
create_atoms ${beadtype} region ${ID}
]
# LOCAL DEFINITIONS for key '11'
ID = $UpperCylinder
beadtype = 3
11: [
% Create atoms of type ${beadtype} for ${ID} ${style} (https://docs.lammps.org/create_atoms.html)
create_atoms ${beadtype} region ${ID}
]
12: [
# ===== [ BEGIN GROUP SECTION ] =====================================================================================
group lower type 1
group solid type 1 2 3
group fixed type 1
group middle type 2
group movable type 2 3
group upper type 3
# ===== [ END GROUP SECTION ] =======================================================================================
# [1:b1] PAIR STYLE SMD
pair_style hybrid/overlay smd/ulsph *DENSITY_CONTINUITY *VELOCITY_GRADIENT *NO_GRADIENT_CORRECTION &
smd/tlsph smd/hertz 1.5
# [1:b1 x 1:b1] Diagonal pair coefficient tlsph
pair_coeff 1 1 smd/tlsph *COMMON 1000 10000.0 0.3 1.0 2.0 10.0 1000.0 &
*STRENGTH_LINEAR_PLASTIC 1000.0 0 &
*EOS_LINEAR &
*END
# [2:b2 x 2:b2] Diagonal pair coefficient tlsph
pair_coeff 2 2 smd/tlsph *COMMON 1000 5000.0 0.3 1.0 2.0 10.0 1000.0 &
*STRENGTH_LINEAR_PLASTIC 500.0 0 &
*EOS_LINEAR &
*END
# [3:b3 x 3:b3] Diagonal pair coefficient tlsph
pair_coeff 3 3 smd/tlsph *COMMON 1000 40000.0 0.3 1.0 2.0 10.0 1000.0 &
*STRENGTH_LINEAR_PLASTIC 4000.0 0 &
*EOS_LINEAR &
*END
# [1:b1 x 2:b2] Off-diagonal pair coefficient (generic)
pair_coeff 1 2 smd/hertz 250.0000000000001
# [1:b1 x 3:b3] Off-diagonal pair coefficient (generic)
pair_coeff 1 3 smd/hertz 250.0000000000001
# [2:b2 x 3:b3] Off-diagonal pair coefficient (generic)
pair_coeff 2 3 smd/hertz 125.00000000000003
# ===== [ END FORCEFIELD SECTION ] ==================================================================================
]
13: [
group all union lower middle upper
group external subtract all middle
]
14: velocity all set 0.0 0.0 0.0 units box
15: fix fix_lower lower setforce 0.0 0.0 0.0
16: fix move_upper upper move wiggle 0.0 0.0 ${amplitude} ${period} units box
17: fix dtfix tlsph smd/adjust_dt ${dt}
18: fix integration_fix tlsph smd/integrate_tlsph
19: [
compute S all smd/tlsph_stress
compute E all smd/tlsph_strain
compute nn all smd/tlsph_num_neighs
]
20: [
dump dump_id all custom ${dumpdt} ${dumpfile} id type x y z vx vy vz &
c_S[1] c_S[2] c_S[4] c_nn &
c_E[1] c_E[2] c_E[4] &
vx vy vz
]
21: dump_modify dump_id first yes
22: [
thermo ${thermodt}
thermo_style custom step dt f_dtfix v_strain
]
23: run ${runtime}
'''
mydscript = dscript.parsesyntax(mydscriptfile,verbose=False,authentification=False)
mydscript[-1].definitions.runtime = 1000 # change local definitions of $runtime at the last step
print(mydscript.do(verbose=True))
Note that mydscript[-1].runtime = 1000 would have created the attribute runtime. Use definitions instead.
print(repr(mydscript[-1])) gives all details
Template Content | id:23 (1 line, 31 defs) <— all variables have be created also locally
run ${runtime}
Detected Variable (1 / +1 / -0)
[+] runtime <— this runtime is a variable
Template Attributes (7 attributes)
[ ] facultativ [x] eval [ ] readonly [ ] condition [ ] condeval [x] detectvar [x] runtime <— this runtime is an attribute
Dependencies
- Python 3.x
- LAMMPS
- Pizza3.pizza
Installation
To use the Pizza3.pizza module, ensure that you have Python 3.x and LAMMPS installed. You can integrate the module into your project by placing the region.py file in your working directory or your Python path.
License
This project is licensed under the terms of the GPLv3 license.
Contact
For any queries or contributions, please contact the maintainer: - Olivier Vitrac, Han Chen - Email: olivier.vitrac@agroparistech.fr
Expand source code
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
================================================================================
PIZZA.DSCRIPT Module Documentation
================================================================================
The **PIZZA.DSCRIPT** module is a versatile tool for dynamically generating and managing
**pizza.scripts**, especially in conjunction with **LAMMPS** (Large-scale Atomic/Molecular
Massively Parallel Simulator). This module provides powerful features to create complex,
parameterized scripts, manage multiple sections, and flexibly concatenate scripts to form
pipelines. It offers advanced control over script execution and generation.
Overview:
---------
- **pizza.script**: Use this to define reusable codelets or scriptlets stored in maintainable libraries.
- **pizza.dscript**: Use this to dynamically generate codelets or scriptlets directly in your code,
allowing for flexible, runtime script generation.
The output of `pizza.dscript.script()` is a complete script instance, similar to a standard pizza.script.
These scripts can be managed like any pizza.script, allowing you to combine them using the `+` or `|`
operators and integrate them into **pizza.pipescripts** for building complex, multi-step workflows.
Key Features:
-------------
1. **Dynamic Script Generation**:
- `pizza.dscript` allows for the generation of scripts dynamically within your code. This means that codelets
and scriptlets can be constructed at runtime, offering flexibility in handling complex scenarios.
2. **Combining Scripts**:
- The generated scripts can be combined using operators like `+` or `|`, enabling you to merge multiple
script sections seamlessly. This is especially useful for creating modular scripts that can be
reused across different contexts or experiments.
3. **Saving and Loading Scripts**:
- `pizza.dscript.save()` and `pizza.dscript.load()` enable you to save and load complex scripts as text templates,
independent of both Python and LAMMPS. This functionality allows for the deployment of sophisticated scripts
without requiring the full script class libraries (commonly referred to as "workshops" in Pizza3).
4. **Leveraging AI for Rapid Template Generation**:
- You can even leverage Large Language Models (LLMs) to generate templates quickly. This feature allows for
automation and faster script generation, particularly useful for deploying templated workflows or codelets.
5. **Non-linear Execution**:
- It's important to note that **pizza.scripts** and **pizza.dscripts** are not directly equivalent to LAMMPS code.
They can be executed statically and non-linearly, without needing LAMMPS to be involved. This makes the
framework particularly useful when managing large LAMMPS simulations that span multiple submodules.
Applications:
-------------
The **PIZZA.DSCRIPT** module is particularly useful when you need to:
- **Dynamically create and manage LAMMPS script sections**.
- **Merge, manipulate, and execute multiple script sections** with predefined or user-defined variables.
- **Generate scripts with conditional sections and custom execution logic**, enabling the handling of complex simulations
and workflows.
The modular nature of `pizza.dscript` makes it well-suited for scenarios where you need to reuse various submodules of
LAMMPS code or mix them with pure Python logic for more advanced control.
Key Classes:
------------
- **`lambdaScriptdata`**: Holds parameters and definitions for script execution. This class encapsulates the data and
logic needed for the dynamic generation of script elements.
- **`lambdaScript`**: Wraps a `dscript` object to generate a `pizza.script instance` from its contents. This class
is essential for converting dynamically generated `dscript` objects into reusable, executable script instances.
- **`dscript`**: Manages and stores multiple script lines/items as `ScriptTemplate` objects, supporting dynamic execution
and the concatenation of script sections. The `dscript` class allows for flexible script construction and execution,
making it a core component for generating dynamic LAMMPS scripts.
Notes:
------
- **Script Composition**: Generated scripts can span several submodules, allowing for the reuse of script components
in different contexts. This feature enables a modular approach to script generation.
- **Execution Flexibility**: Since `pizza.dscript` scripts are not bound to LAMMPS directly, they can be executed
independently, making them highly flexible for preprocessing, debugging, or running custom logic within a
LAMMPS-related workflow.
Important Distinction between **PIZZA.DSCRIPT** and **PIZZA.SCRIPT**: (with possible evolution in the future)
---------------------------------------------------------------------
- **PIZZA.DSCRIPT** stores the DEFINITIONS in lambdaScriptdata objects based on pizza.private.mstruct.paramauto
The practical consequence is that all variables should be within {} such as ${variable}.
The definitions will be redordered to authorize execution
- **PIZZA.SCRIPT** stores the DEFINITIONS in Scriptdata objects based on pizza.private.mstruct.param
The variables can be $myvar or ${myvar}. The definition order is important.
Practical Usage:
----------------
- Scripts can be combined dynamically.
- Variables in script templates are handled automatically, allowing flexible script execution.
- Concatenate multiple scripts, with automatic merging and non-overwriting of variables.
The concept of TEMPLATING is managed via shorthands
from dscript import dscript
```python
# Create a dscript instance
S = dscript(name="MyScript")
# Define script sections
S[0] = "instruction 1"
S[1] = "${var1} + ${var2}"
# Set definitions
S.DEFINITIONS.var1 = "1"
S.DEFINITIONS.var2 = "2"
# Enable evaluation
S[1].eval = True
# Generate the script
result = S.do()
print(result)
# convert it into pizza.script
s=S.script()
rs = s.do()
print(rs)
```
Chat GPT teaching instructions:
Copy and paste these instructions to teach chatGPT how to convert in LAMMPS code in pizza.dscript()
-----------------------------[ start here ]--------------------------------------------------
# DSCRIPT SAVE FILE Format Instructions:
Each DSCRIPT file begins with the line `# DSCRIPT SAVE FILE`. The file is divided into sections: Global Parameters, Definitions, Template, and Attributes.
1. Global Parameters Section: Enclosed in `{}` and contains key-value pairs where values can be integers, floats, strings, booleans, or lists. Example:
```
# GLOBAL PARAMETERS
{
SECTIONS = ['SECTION1', 'SECTION2'],
section = 0,
position = 0,
role = "dscript instance",
description = "A description",
userid = "dscript",
version = 0.1,
verbose = False
}
```
2. Definitions Section: Defines variables as key-value pairs, which can reference other variables using `${}`. Example:
```
# DEFINITIONS (number of definitions=X)
var1 = value1
var2 = "${var1}"
```
3. Template Section: Contains key-value pairs for blocks of script content. Single-line content is written as `key: value`. Multi-line content is enclosed in square brackets `[]`. Example:
```
# TEMPLATE (number of lines=X)
block1: command using ${var1}
block2: [
multi-line command 1
multi-line command 2
]
```
4. Attributes Section: Optional attributes are attached to each block as key-value pairs inside curly braces `{}`. Example:
```
# ATTRIBUTES (number of lines with explicit attributes=X)
block1: {facultative=True, eval=True}
```
Definitions can be dynamically substituted into the templates using `${}` notation, and the parser should handle both single-line and multi-line templates.
```
-----------------------------[ end here ]--------------------------------------------------
================================================================================
Production Example: Dynamic LAMMPS Script Generation Using `dscript` and `script`
================================================================================
This example illustrates how to dynamically generate and manage LAMMPS scripts
using the `dscript` and `script` classes. The goal is to demonstrate the flexibility
of these classes in handling script sections, overriding parameters, and generating
a script with conditions and dynamic content.
Overview:
---------
In this example, we:
- Define global `DEFINITIONS` that hold script parameters.
- Create a script template with multiple lines/items, each identified by a unique key.
- Add conditions to script lines/items to control their inclusion based on the state of variables.
- Overwrite `DEFINITIONS` at runtime to customize the script's behavior.
- Generate and execute the script using the `do()` method.
Key Classes Used:
-----------------
- `dscript`: Manages multiple script lines and their dynamic execution.
- `lamdaScript`: Wraps a `dscript` object to generate a script instance from its contents.
Practical Steps:
----------------
1. Initialize a `dscript` object and define global variables (DEFINITIONS).
2. Create script lines/items using keys to identify each line.
3. Apply conditions to script lines/items to control their execution.
4. Overwrite or add new variables to `DEFINITIONS` at runtime.
5. Generate the final script using `lamdaScript` and execute it.
Example:
--------
# Initialize the dscript object
R = dscript(name="ProductionExample")
# Define global variables (DEFINITIONS)
R.DEFINITIONS.dimension = 3
R.DEFINITIONS.units = "$si"
R.DEFINITIONS.boundary = ["sm","sm","sm"]
R.DEFINITIONS.atom_style = "$smd"
R.DEFINITIONS.atom_modify = ["map","array"]
R.DEFINITIONS.comm_modify = ["vel","yes"]
R.DEFINITIONS.neigh_modify = ["every",10,"delay",0,"check","yes"]
R.DEFINITIONS.newton = "$off"
# Define the script template, with each line identified by a key
R[0] = "% ${comment}"
R["dim"] = "dimension ${dimension}" # Line identified as 'dim'
R["unit"] = "units ${units}" # Line identified as 'unit'
R["bound"] = "boundary ${boundary}"
R["astyle"] = "atom_style ${atom_style}"
R["amod"] = "atom_modify ${atom_modify}"
R["cmod"] = "comm_modify ${comm_modify}"
R["nmod"] = "neigh_modify ${neigh_modify}"
R["newton"] = "newton ${newton}"
# Apply a condition to the 'astyle' line; it will only be included if ${atom_style} is defined
R["astyle"].condition = "${atom_style}"
# Revise the DEFINITIONS, making ${atom_style} undefined
R.DEFINITIONS.atom_style = ""
# Generate a script instance, overwriting the 'units' variable and adding a comment
sR = R.script(units="$lj", # Use "$" to prevent immediate evaluation
comment="$my first dynamic script")
# Execute the script to get the final content
ssR = sR.do()
# Print the generated script as text
print(ssR)
# Save your script
R.save("myscript.txt")
# Load again your script
Rcopy = dsave.load("myscript.txt")
More Compact Example:
---------------------
# Initialization
R2 = dscript(name="ProductionExample2")
# Define global variables (DEFINITIONS) for the script
R2.DEFINITIONS.dimension = 3
R2.DEFINITIONS.units = "$si"
R2.DEFINITIONS.boundary = ["sm", "sm", "sm"]
R2.DEFINITIONS.atom_modify = ["map", "array"]
R2.DEFINITIONS.comm_modify = ["vel", "yes"]
R2.DEFINITIONS.neigh_modify = ["every", 10, "delay", 0, "check", "yes"]
R2.DEFINITIONS.newton = "$off"
R2.DEFINITIONS.atom_style = "$smd"
# Define the script template with a multiple line syntax
R2["code"] = "" "
% ${comment}
dimension ${dimension}
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
"" "
# Generate a script instance, overwriting the 'units' variable and adding a comment
sR2 = R2.script(comment="$my first compact dscript")
ssR2 = sR2.do()
# Print the generated script
print(ssR2)
Expected Output:
----------------
Depending on the conditions and overwritten variables, the output script should
reflect the updated `DEFINITIONS` and the conditionally included lines.
For instance:
- The line for `atom_style` will be omitted because `atom_style` is undefined.
- The script will include the custom units and comment specified at runtime.
Some Comments:
--------------
pizza.dscript does not not require the definition of modules, submodules and so on.
For comparison, pizza.script requires managing directly classes
Usage Example
-------------
```python
from pizza.script import script
class scriptexample(script):
description = "demonstrate commutativity of additions"
verbose = True
DEFINITIONS = scriptdata(
X = 10,
Y = 20,
R1 = "${X}+${Y}",
R2 = "${Y}+${X}"
)
TEMPLATE = "" "
# Property of the addition
${R1} = ${X} + ${Y}
${R2} = ${Y} + ${X}
"" "
s1 = scriptexample()
s1.do()
```
Load and Save features:
-----------------------
use dscript.load() and dscript.save() methods
DSCRIPT SAVE FILE Syntax:
--------------------------
A DSCRIPT SAVE FILE is a text-based representation of script instances that are dynamically loaded or saved. It consists of key sections that define global parameters, variables (definitions), script templates, and attributes. The file format is structured and flexible, allowing both minimal and extended configurations depending on the level of detail required.
### Minimal DSCRIPT File
A minimal DSCRIPT SAVE FILE includes the template section, which defines the script's core structure. The template assigns content to variables, which can then be dynamically evaluated and modified during script execution.
Example of a minimal DSCRIPT SAVE FILE:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# DSCRIPT SAVE FILE
0: % ${comment}
dim: dimension ${dimension}
unit: units ${units}
bound: boundary ${boundary}
astyle: atom_style ${atom_style}
amod: atom_modify ${atom_modify}
cmod: comm_modify ${comm_modify}
nmod: neigh_modify ${neigh_modify}
newton: newton ${newton}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Example of a compact DSCRIPT SAVE FILE:
Note the position of the []
Use % to keep comments
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# DSCRIPT SAVE FILE
mytemplate: [
% ${comment}
dimension ${dimension}
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- **Required header**: The file must start with the line `# DSCRIPT SAVE FILE`. This is mandatory and serves to authenticate the file as a valid DSCRIPT file.
- **Template section**: Each line contains a variable key followed by the content. Variables (e.g., `${dimension}`) are placeholders that will be replaced during script execution. The format is `key: content`, where `key` is a unique identifier and `content` represents the script logic.
### Extended DSCRIPT File
An extended DSCRIPT file includes additional sections such as global parameters, definitions, templates, and attributes. These provide more control and flexibility over script behavior and configuration.
Example of an extended DSCRIPT SAVE FILE:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# DSCRIPT SAVE FILE
# generated on 20XX-XX-XX on user@localhost
# name = "ProductionExample"
# path = "/your/path/ProductionExample.txt"
# GLOBAL PARAMETERS
{
SECTIONS = ['DYNAMIC'],
section = 0,
position = 0,
role = 'dscript instance',
description = 'dynamic script',
userid = 'dscript',
version = 0.1,
verbose = False
}
# DEFINITIONS (number of definitions=9)
dimension=3
units=$si
boundary=['sm', 'sm', 'sm']
atom_style=""
atom_modify=['map', 'array']
comm_modify=['vel', 'yes']
neigh_modify=['every', 10, 'delay', 0, 'check', 'yes']
newton=$off
comment=${comment}
# TEMPLATE (number of lines=9)
0: % ${comment}
dim: dimension ${dimension}
unit: units ${units}
bound: boundary ${boundary}
astyle: atom_style ${atom_style}
amod: atom_modify ${atom_modify}
cmod: comm_modify ${comm_modify}
nmod: neigh_modify ${neigh_modify}
newton: newton ${newton}
# ATTRIBUTES (number of lines with explicit attributes=9)
0:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
dim:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
unit:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
bound:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
astyle:{facultative=False, eval=False, readonly=False, condition='${atom_style}', condeval=False, detectvar=True}
amod:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
cmod:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
nmod:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
newton:{facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### Detailed Explanation of "DSCRIPT SAVE FILE" Sections:
1. **Global Parameters**:
- Defined between `{...}` and describe the overall configuration of the script.
- Common parameters include `SECTIONS`, `section`, `position`, `role`, `description`, `userid`, `version`, and `verbose`.
- These parameters help control the behavior and structure of the script instance.
2. **Definitions**:
- The `DEFINITIONS` section lists key-value pairs, where each key is a variable, and its value can be any valid Python data type (e.g., integers, strings, lists).
- Example: `dimension=3`, `units=$si`, `boundary=['sm', 'sm', 'sm']`.
- Variables starting with a `$` (e.g., `$si`) are typically placeholders or dynamic variables.
3. **Template**:
- The `TEMPLATE` section defines the actual content of the script. Each line is in the format `key: content`, where `key` is a unique identifier, and `content` includes placeholders for variables (e.g., `${dimension}`).
- Example: `dim: dimension ${dimension}`.
- The template is where variables from the `DEFINITIONS` section are substituted dynamically.
4. **Attributes**:
- The `ATTRIBUTES` section defines the properties of each template entry. Each line associates a key with a dictionary of attributes (e.g., `facultative`, `eval`, `readonly`).
- Example: `astyle:{facultative=False, eval=False, readonly=False, condition='${atom_style}', condeval=False, detectvar=True}`.
- The attributes control how each template line behaves (e.g., whether it's evaluated, whether it depends on a condition, etc.).
### Adding Comments:
- Comments are added by starting a line with `#`. Comments can appear anywhere in the file, and they will be ignored during the loading process.
- Example:
```
# This is a comment
dim: dimension ${dimension} # Another comment
```
- Comments are typically used for documentation purposes within the DSCRIPT file, such as describing sections or explaining template logic.
### Imperative Components:
- **Header**: The line `# DSCRIPT SAVE FILE` must be present at the beginning of the file. It authenticates the file as a valid DSCRIPT file.
- **Template**: At least one template entry must be defined, as the template represents the main script content.
### Accessory Components:
- **Variable Substitution**: Variables (e.g., `${dimension}`) must be defined in the `DEFINITIONS` section to be substituted dynamically in the template content.
- **Attributes (Optional)**: Attributes are optional but provide more control over the template behavior when specified.
readonly=False, condition=None, condeval=False, detectvar=True}.
### Flexible structure
- **Global Parameters** can be defined anywhere but in a single block
- **Template** and **Attributes** lines can be mixed together.
Production example (using last features)
------------------
```python
mydscriptfile = '''
# GLOBAL DEFINITIONS (number of definitions=4)
dumpfile = $dump.LAMMPS
dumpdt = 50
thermodt = 100
runtime = 5000
# TEMPLATES (number of items=24)
# LOCAL DEFINITIONS for key '0'
dimension = 3
units = $si
boundary = ['f', 'f', 'f']
atom_style = $smd
atom_modify = ['map', 'array']
comm_modify = ['vel', 'yes']
neigh_modify = ['every', 10, 'delay', 0, 'check', 'yes']
newton = $off
name = $SimulationBox
0: [
% --------------[ Initialization Header (helper) for "${name}" ]--------------
# set a parameter to None or "" to remove the definition
dimension ${dimension}
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
# ------------------------------------------
]
# LOCAL DEFINITIONS for key '1'
lattice_style = $sc
lattice_scale = 0.0008271
lattice_spacing = [0.0008271, 0.0008271, 0.0008271]
1: [
% --------------[ LatticeHeader 'helper' for "${name}" ]--------------
lattice ${lattice_style} ${lattice_scale} spacing ${lattice_spacing}
# ------------------------------------------
]
# LOCAL DEFINITIONS for key '2'
xmin = -0.03
xmax = 0.03
ymin = -0.01
ymax = 0.01
zmin = -0.03
zmax = 0.03
nbeads = 3
2: [
% --------------[ Box Header 'helper' for "${name}" ]--------------
region box block ${xmin} ${xmax} ${ymin} ${ymax} ${zmin} ${zmax}
create_box ${nbeads} box
# ------------------------------------------
]
# LOCAL DEFINITIONS for key '3'
ID = $LowerCylinder
style = $cylinder
3: % variables to be used for ${ID} ${style} ]
# LOCAL DEFINITIONS for key '4'
ID = $CentralCylinder
4: % variables to be used for ${ID} ${style}
# LOCAL DEFINITIONS for key '5'
ID = $UpperCylinder
5: % variables to be used for ${ID} ${style}
# LOCAL DEFINITIONS for key '6'
args = ['z', 0.0, 0.0, 36.27130939426913, 0.0, 6.045218232378189]
side = ""
move = ""
rotate = ""
open = ""
ID = $LowerCylinder
units = ""
6: [
% Create region ${ID} ${style} args ... (URL: https://docs.lammps.org/region.html)
# keywords: side, units, move, rotate, open
# values: in|out, lattice|box, v_x v_y v_z, v_theta Px Py Pz Rx Ry Rz, integer
region ${ID} ${style} ${args} ${side}${units}${move}${rotate}${open}
]
# LOCAL DEFINITIONS for key '7'
ID = $CentralCylinder
args = ['z', 0.0, 0.0, 36.27130939426913, 6.045218232378189, 18.135654697134566]
7: [
% Create region ${ID} ${style} args ... (URL: https://docs.lammps.org/region.html)
# keywords: side, units, move, rotate, open
# values: in|out, lattice|box, v_x v_y v_z, v_theta Px Py Pz Rx Ry Rz, integer
region ${ID} ${style} ${args} ${side}${units}${move}${rotate}${open}
]
# LOCAL DEFINITIONS for key '8'
ID = $UpperCylinder
args = ['z', 0.0, 0.0, 36.27130939426913, 18.135654697134566, 24.180872929512756]
8: [
% Create region ${ID} ${style} args ... (URL: https://docs.lammps.org/region.html)
# keywords: side, units, move, rotate, open
# values: in|out, lattice|box, v_x v_y v_z, v_theta Px Py Pz Rx Ry Rz, integer
region ${ID} ${style} ${args} ${side}${units}${move}${rotate}${open}
]
# LOCAL DEFINITIONS for key '9'
ID = $LowerCylinder
beadtype = 1
9: [
% Create atoms of type ${beadtype} for ${ID} ${style} (https://docs.lammps.org/create_atoms.html)
create_atoms ${beadtype} region ${ID}
]
# LOCAL DEFINITIONS for key '10'
ID = $CentralCylinder
beadtype = 2
10: [
% Create atoms of type ${beadtype} for ${ID} ${style} (https://docs.lammps.org/create_atoms.html)
create_atoms ${beadtype} region ${ID}
]
# LOCAL DEFINITIONS for key '11'
ID = $UpperCylinder
beadtype = 3
11: [
% Create atoms of type ${beadtype} for ${ID} ${style} (https://docs.lammps.org/create_atoms.html)
create_atoms ${beadtype} region ${ID}
]
12: [
# ===== [ BEGIN GROUP SECTION ] =====================================================================================
group lower type 1
group solid type 1 2 3
group fixed type 1
group middle type 2
group movable type 2 3
group upper type 3
# ===== [ END GROUP SECTION ] =======================================================================================
# [1:b1] PAIR STYLE SMD
pair_style hybrid/overlay smd/ulsph *DENSITY_CONTINUITY *VELOCITY_GRADIENT *NO_GRADIENT_CORRECTION &
smd/tlsph smd/hertz 1.5
# [1:b1 x 1:b1] Diagonal pair coefficient tlsph
pair_coeff 1 1 smd/tlsph *COMMON 1000 10000.0 0.3 1.0 2.0 10.0 1000.0 &
*STRENGTH_LINEAR_PLASTIC 1000.0 0 &
*EOS_LINEAR &
*END
# [2:b2 x 2:b2] Diagonal pair coefficient tlsph
pair_coeff 2 2 smd/tlsph *COMMON 1000 5000.0 0.3 1.0 2.0 10.0 1000.0 &
*STRENGTH_LINEAR_PLASTIC 500.0 0 &
*EOS_LINEAR &
*END
# [3:b3 x 3:b3] Diagonal pair coefficient tlsph
pair_coeff 3 3 smd/tlsph *COMMON 1000 40000.0 0.3 1.0 2.0 10.0 1000.0 &
*STRENGTH_LINEAR_PLASTIC 4000.0 0 &
*EOS_LINEAR &
*END
# [1:b1 x 2:b2] Off-diagonal pair coefficient (generic)
pair_coeff 1 2 smd/hertz 250.0000000000001
# [1:b1 x 3:b3] Off-diagonal pair coefficient (generic)
pair_coeff 1 3 smd/hertz 250.0000000000001
# [2:b2 x 3:b3] Off-diagonal pair coefficient (generic)
pair_coeff 2 3 smd/hertz 125.00000000000003
# ===== [ END FORCEFIELD SECTION ] ==================================================================================
]
13: [
group all union lower middle upper
group external subtract all middle
]
14: velocity all set 0.0 0.0 0.0 units box
15: fix fix_lower lower setforce 0.0 0.0 0.0
16: fix move_upper upper move wiggle 0.0 0.0 ${amplitude} ${period} units box
17: fix dtfix tlsph smd/adjust_dt ${dt}
18: fix integration_fix tlsph smd/integrate_tlsph
19: [
compute S all smd/tlsph_stress
compute E all smd/tlsph_strain
compute nn all smd/tlsph_num_neighs
]
20: [
dump dump_id all custom ${dumpdt} ${dumpfile} id type x y z vx vy vz &
c_S[1] c_S[2] c_S[4] c_nn &
c_E[1] c_E[2] c_E[4] &
vx vy vz
]
21: dump_modify dump_id first yes
22: [
thermo ${thermodt}
thermo_style custom step dt f_dtfix v_strain
]
23: run ${runtime}
'''
mydscript = dscript.parsesyntax(mydscriptfile,verbose=False,authentification=False)
mydscript[-1].definitions.runtime = 1000 # change local definitions of $runtime at the last step
print(mydscript.do(verbose=True))
```
Note that mydscript[-1].runtime = 1000 would have created the attribute runtime. Use definitions instead.
print(repr(mydscript[-1])) gives all details
--------------------------------------------------
Template Content | id:23 (1 line, 31 defs) <--- all variables have be created also locally
--------------------------------------------------
run ${runtime}
--------------------------------------------------
Detected Variable (1 / +1 / -0)
--------------------------------------------------
[+] runtime <--- this runtime is a variable
--------------------------------------------------
Template Attributes (7 attributes)
--------------------------------------------------
[ ] facultativ [x] eval [ ] readonly
[ ] condition [ ] condeval [x] detectvar
[x] runtime <--- this runtime is an attribute
Dependencies
------------
- Python 3.x
- LAMMPS
- Pizza3.pizza
Installation
------------
To use the Pizza3.pizza module, ensure that you have Python 3.x and LAMMPS installed. You can integrate the module into your project by placing the `region.py` file in your working directory or your Python path.
License
-------
This project is licensed under the terms of the GPLv3 license.
Contact
-------
For any queries or contributions, please contact the maintainer:
- Olivier Vitrac, Han Chen
- Email: olivier.vitrac@agroparistech.fr
"""
__project__ = "Pizza3"
__author__ = "Olivier Vitrac, Han Chen, Joseph Fine"
__copyright__ = "Copyright 2024"
__credits__ = ["Olivier Vitrac", "Han Chen", "Joseph Fine"]
__license__ = "GPLv3"
__maintainer__ = "Olivier Vitrac"
__email__ = "olivier.vitrac@agroparistech.fr"
__version__ = "0.99991"
# INRAE\Olivier Vitrac - rev. 2024-12-09 (community)
# contact: olivier.vitrac@agroparistech.fr, han.chen@inrae.fr
# Revision history
# 2024-09-02 alpha version (compatibility issues with pizza.script)
# 2024-09-03 release candidate (fully compatible with pizza.script)
# 2024-09-04 load() and save() methods, improved documentation
# 2024-09-05 several fixes, add dscript.write(), dscript.parsesyntax()
# 2024-09-06 finalization of the block syntax between [], and its examples + documentation
# 2024-10-07 fix example
# 2024-10-09 remove_comments moved to script (to prevent circular reference)
# 2024-10-14 finalization of the integration with scripts
# 2024-10-17 fix __add__, improve repr()
# 2024-10-18 add add_dynamic_script() helper for adding a step to a dscript
# 2024-10-19 better file management
# 2024-10-22 sophistication of ScriptTemplate to recognize defined variables at construction and to parse flags/conditions
# 2024-10-24 management of locl definitions in dscript.save() and dscript.parsesyntax()
# 2024-10-27 caching ScriptTemplate checks, improved dscript.save() methods
# 2024-10-28 less redundancy beyween local and global variables in dscript.save()
# 2024-10-07 new parsesyntax accepting [ ] at any position, improved doc, parsesyntax_legacy holds the old parser method
# 2024-10-08 fix single line templates
# 2024-10-12 several improvements and sophistication in the definition and execution of templates from dscript
# 2024-12-01 standarize scripting features, automatically call script/pscript methods
# 2024-12-02 add dscript.header() and implement it in dscript.save() and dscript.write()
# 2024-12-03 improve the logics of dscript.parse(), dscript.save() on real cases
# 2024-12-04 preparation for major release
# 2024-12-09 get-metadata() use globals()
# Dependencies
import os, getpass, socket, time, datetime
import re, string, random, copy, hashlib
from pizza.private.mstruct import paramauto
from pizza.script import script, scriptdata, pipescript, remove_comments, span, frame_header
__all__ = ['ScriptTemplate', 'autoname', 'dscript', 'frame_header', 'get_metadata', 'lambdaScriptdata', 'lamdaScript', 'paramauto', 'pipescript', 'remove_comments', 'script', 'scriptdata', 'span']
# %% Private Functions
def autoname(numChars=8):
""" generate automatically names """
return ''.join(random.choices(string.ascii_letters, k=numChars)) # Generates a random name of numChars letters
# returns the metadata
def get_metadata():
"""Return a dictionary of explicitly defined metadata."""
# Define the desired metadata keys
metadata_keys = [
"__project__",
"__author__",
"__copyright__",
"__credits__",
"__license__",
"__maintainer__",
"__email__",
"__version__",
]
# Filter only the desired keys from the current module's globals
return {key.strip("_"): globals()[key] for key in metadata_keys if key in globals()}
# %% Low-level Classes (wrappers for pizza.script)
class lambdaScriptdata(paramauto):
"""
Class to manage lambda script parameters.
This class holds definitions and variables used within the script templates.
These parameters are typically set up as global variables that can be accessed
by script sections for evaluation and substitution.
Example Usage:
--------------
definitions = lambdaScriptdata(var1=10, var2="value")
Attributes:
-----------
_type : str
The type of the data ("LSD" by default).
_fulltype : str
Full type description of the lambda script data.
_ftype : str
Short description of the type (parameter definition).
Methods:
--------
This class inherits methods from the `paramauto` class, which allows automatic
handling of parameters and script data.
"""
_type = "LSD"
_fulltype = "Lambda Script Parameters"
_ftype = "parameter definition"
def __init__(self, _protection=False, _evaluation=True, sortdefinitions=False, **kwargs):
"""
Constructor for lambdaScriptdata. It forces the parent's _returnerror parameter to False.
Parameters:
-----------
_protection : bool, optional
Whether to enable protection on the parameters (default: False).
_evaluation : bool, optional
Whether evaluation is enabled for the parameters (default: True).
sortdefinitions : bool, optional
Whether to sort definitions upon initialization (default: False).
**kwargs : dict
Additional keyword arguments for the parent class.
"""
# Call the parent class constructor
super().__init__(_protection=_protection, _evaluation=_evaluation, sortdefinitions=sortdefinitions, **kwargs)
# Override the _returnerror attribute at the instance level
self._returnerror = False
class lamdaScript(script):
"""
lamdaScript
===========
The `lamdaScript` class is a specialized subclass of `script` that acts as a wrapper
for generating script objects from `dscript` instances. It facilitates the creation
of scripts with persistent storage options and user-defined configurations.
Attributes
----------
name : str
The name of the script.
SECTIONS : list
Inherited list of script sections from the `script` class.
position : int
The position index of the script section.
role : str
The role of the script section, derived from its position.
description : str
A brief description of the script.
userid : str
The user ID associated with the script.
version : float
The version of the script.
verbose : bool
Flag to enable verbose output.
DEFINITIONS : scriptdata
Definitions of variables used in the script.
USER : lambdaScriptdata
User-defined variables specific to `lamdaScript`.
TEMPLATE : dict
A dictionary of script templates.
Methods
-------
do()
Generates the complete LAMMPS script by processing all script sections.
Special Methods
----------------
__contains__(key)
Allows checking if a specific section exists using the `in` keyword.
__str__()
Returns the string representation of the script.
Usage Example
-------------
```python
from dscript import lamdaScript, dscript
# Create an existing dscript instance
existing_dscript = dscript(name="ExistingScript")
existing_dscript.role = "Custom Role"
# Create a lamdaScript instance based on the existing dscript
ls = lamdaScript(existing_dscript)
print(ls.role) # Outputs: "Custom Role"
```
"""
name = ""
def __init__(self, dscriptobj, persistentfile=True, persistentfolder=None,
printflag = False, verbose = True, softrun = True,
**userdefinitions):
"""
Initialize a new `lambdaScript` instance.
This constructor creates a `lambdaScript` object based on an existing `dscriptobj`,
providing options for persistent storage, verbose output, and user-defined configurations.
A `lambdaScript` represents an anonymous or temporary script that can either preserve the
original script structure or partially evaluate variable definitions based on the `softrun` flag.
Parameters
----------
dscriptobj : dscript
An existing `dscript` object to base the new instance on.
persistentfile : bool, optional
If `True`, the script will be saved to a persistent file. Defaults to `True`.
persistentfolder : str or None, optional
The folder where the persistent file will be saved. If `None`, a temporary location is used.
Defaults to `None`.
printflag : bool, optional
If `True`, enables printing of the script details during execution. Defaults to `False`.
verbose : bool, optional
If `True`, provides detailed output during script initialization and execution. Defaults to `True`.
softrun : bool, optional
Determines whether a pre-execution run is carried out to partially evaluate and substitute variables.
- If `True` (default), the variable definitions and original script content are preserved without full
evaluation, meaning no substitution is carried out on the `dscript`'s templates or definitions.
- If `False`, performs an initial evaluation phase that substitutes available variables and captures
the local definitions before creating the `lambdaScript` object.
**userdefinitions
Additional user-defined variables and configurations to be included in the `lambdaScript`.
Raises
------
TypeError
If `dscriptobj` is not an instance of the `dscript` class.
Example
-------
```python
existing_dscript = dscript(name="ExistingScript")
ls = lambdaScript(existing_dscript, var3="3", softrun=False)
```
"""
if not isinstance(dscriptobj, dscript):
raise TypeError(f"The 'dscriptobj' object must be of class dscript not {type(dscriptobj).__name__}.")
verbose = dscriptobj.verbose if verbose is None else dscriptobj.verbose
super().__init__(persistentfile=persistentfile, persistentfolder=persistentfolder, printflag=printflag, verbose=verbose, **userdefinitions)
self.name = dscriptobj.name
self.SECTIONS = dscriptobj.SECTIONS
self.section = dscriptobj.section
self.position = dscriptobj.position
self._role = dscriptobj.role # Initialize an internal storage for the role
self.description = dscriptobj.description
self.userid = dscriptobj.userid
self.version= dscriptobj.version
self.verbose = verbose
self.printflag = printflag
self.DEFINITIONS = dscriptobj.DEFINITIONS
if softrun:
self.TEMPLATE,localdefinitions = dscriptobj.do(softrun=softrun,return_definitions=True)
self.USER = localdefinitions + lambdaScriptdata(**self.USER)
else:
self.TEMPLATE = dscriptobj.do(softrun=softrun)
self.USER = lambdaScriptdata(**self.USER)
@property
def role(self):
"""Override the role property to include a setter."""
# If _role is set, return it; otherwise, use the inherited logic
if self._role is not None:
return self._role
elif self.section in range(len(self.SECTIONS)):
return self.SECTIONS[self.section]
else:
return ""
@role.setter
def role(self, value):
"""Allow setting the role."""
self._role = value
# %% Main Classes
class ScriptTemplate:
"""
The `ScriptTemplate` class provides a mechanism to store, process, and dynamically substitute
variables within script content. This class supports handling flags and conditions, allowing
for flexible and conditional execution of parts of the script.
Attributes:
-----------
default_attributes : dict (class-level)
A dictionary containing the default flags for each `ScriptTemplate` object. These attributes
are applied when initializing the object or when no flags are specified in the content.
Flags include:
- facultative (bool): If True, the script line is optional and may be discarded if certain
conditions are not met. (default: False)
- eval (bool): If True, the content is evaluated using `formateval`, which allows for variable
substitution during execution. (default: False)
- readonly (bool): If True, the content cannot be modified after initialization. (default: False)
- condition (str or None): A string that specifies a condition for executing the content.
If the condition is not met, the script line is skipped. (default: None)
- condeval (bool): If True, the `condition` attribute is evaluated dynamically using variables.
(default: False)
- detectvar (bool): If True, any variables in the content (e.g., `${varname}`) are automatically
detected and registered in the definitions. (default: True)
Methods:
--------
__init__(self, content="", definitions=lambdaScriptdata(), userid=None, verbose=False, **kwargs):
Initializes the `ScriptTemplate` object with script content, optional variable definitions,
and configurable attributes. Flags like `facultative`, `eval`, `readonly`, `condition`,
and others are set via content prefixes or passed directly as keyword arguments.
parse_content(cls, content, verbose=False):
A class method that parses content to detect special flags and condition tags, returning the
cleaned content and a dictionary of attributes (flags).
The method processes the following flags and tags:
- `!` : Sets `eval=True`, which forces evaluation of the content.
- `?` : Sets `facultative=True`, marking the content as optional.
- `^` : Sets `readonly=True`, preventing modifications to the content.
- `~` : Sets `detectvar=False`, disabling automatic variable detection.
- `[if:condition]` : Defines a condition for executing the script. If the condition is met,
the script will be executed. Conditions can include `;eval` to trigger evaluation.
Parameters:
-----------
content : str
The script content to be parsed. It may contain lines starting with special characters
that set specific attributes for the script template.
verbose : bool (default: False)
If True, preserves comments and does not remove comment lines during parsing.
Returns:
--------
cleaned_content : str
The cleaned script content, with all flags and conditions removed.
attributes : dict
A dictionary of parsed attributes (flags) including:
- facultative (bool): Indicates if the content is optional.
- eval (bool): Specifies if the content should be evaluated for variable substitution.
- readonly (bool): Prevents modifications to the content.
- condition (str or None): Defines the condition for executing the script.
- condeval (bool): If True, dynamically evaluates the condition.
- detectvar (bool): If True, detects and registers variables in the content.
detect_variables(self):
Detects variables in the content using the pattern `${varname}`. It returns a list of
variable names found in the script.
refreshvar(self):
Ensures that any detected variables are added to the `definitions` if they are missing.
__setattr__(self, name, value):
Sets the value of an attribute. The method performs validation on specific attributes
(e.g., `eval`, `readonly`, `facultative`, etc.) to ensure the correct data types are assigned.
__getattr__(self, name):
Retrieves the value of an attribute. If the attribute is not set, it returns the default
value from `default_attributes`.
Example 1:
----------
# Create a ScriptTemplate object with content and optional definitions
line = ScriptTemplate("dimension ${dimension}")
# You can also pass in global definitions if needed
global_definitions = lambdaScriptdata(dimension=3)
line_with_defs = ScriptTemplate("dimension ${dimension}",
definitions=global_definitions)
After initialization, you can modify the line's attributes or use it as
part of a larger script managed by a `dscript` object.
Example 2:
----------
# Example of using flags and conditions in content
line = ScriptTemplate("!velocity all set 0.0 0.0 0.0 units box")
# This will automatically set `eval=True` due to the '!' flag.
line_with_condition = ScriptTemplate("[if: ${condition};eval] fix upper move wiggle 0.0 0.0 1.0 1.0")
# This content will only execute if `${condition}` is True, and `eval` will be applied to substitute variables.
"""
# Class-level attribute for default flags
default_attributes = {
'facultative': False,
'eval': False,
'readonly': False,
'condition': None,
'condeval': False,
'detectvar': True
}
def __init__(self, content="", definitions=lambdaScriptdata(), autorefresh=True, userid=None, verbose=False, comment_chars="#%", **kwargs):
"""
Initializes a new `ScriptTemplate` object.
The constructor sets up a new script template with content, optional variable
definitions, and a set of configurable attributes. This template is capable
of dynamically substituting variables using a provided `lambdaScriptdata`
object or internal definitions. You can also manage attributes like evaluation,
facultative execution, and variable detection.
Parameters:
-----------
content : str or list of str
The content of the script template, which can be a single string or a list of strings.
If a single string is provided, it will automatically be converted to a list of lines.
This ensures consistent handling of multi-line content.
definitions : lambdaScriptdata, optional
A reference to a `lambdaScriptdata` object that contains global variable
definitions. These definitions will be used to substitute variables within the content.
If `definitions` is not provided, variable substitution will rely on local
or inline definitions.
verbose : flag (default value=True)
If True the comments are preserved (applied when str is a string).
autorefresh : flag (default=False)
If True, new variables are automatically detected when the content is changed
**kwargs :
Additional keyword arguments to set specific attributes for the script line.
These attributes control the behavior of the script template during evaluation
and execution. Any keyword argument passed here will update the default
attribute values.
Default attributes (with default values):
- facultative (False):
If True, the script line is optional and may be discarded if certain conditions are not met.
- eval (False):
If True, the content will be evaluated using `formateval`, allowing variable
substitution during the execution.
- readonly (False):
If True, the content of the script cannot be modified after initialization.
- condition (None):
An optional condition that controls whether the content will be executed.
If the condition is not met, the script line will not be executed.
- condeval (False):
If True, the `condition` attribute will be evaluated, allowing conditional
logic based on variable values.
- detectvar (True):
If True, the content will automatically detect and register any variables
(such as `${varname}`) within the `definitions` for substitution.
- comment_chars : str, optional (default: "#%")
A string containing characters to identify the start of a comment.
Any of these characters will mark the beginning of a comment unless within quotes.
"""
# Initialize `_CACHE` with separate entries for each method
self._CACHE = {
'variables': {'result': None},
'check_variables': {'result': None}
}
# Constructor
self._autorefresh = autorefresh
self._content = content # # Store initial content
self.definitions = lambdaScriptdata(**definitions) # Reference to the DEFINITIONS object
# Initialize attributes with default values
self.attributes = self.default_attributes.copy()
# Convert single string content to a list for consistent processing
if content == "" or content is None:
content = "" # Set to empty string if None
elif isinstance(content, str):
# Interpret the content and extract any attribute flags (e.g. !, ?, etc.)
content, self.attributes = self.parse_content(content, verbose=verbose)
# Convert content to a list of strings
if verbose:
content = content.split('\n') # All comments are preserved during construction
else:
content = remove_comments(content, split_lines=True,comment_chars=comment_chars) # Split string by newlines into list of strings
elif not isinstance(content, list) or not all(isinstance(item, str) for item in content):
raise TypeError("The 'content' attribute must be a string or a list of strings.")
# Assign content to the object
self.content = content
# Update attributes with any additional keyword arguments passed in
self.attributes.update(kwargs)
# Detect variables in the content
detected_variables = self.detect_variables()
# Automatically set `eval=True` if any detected variables are defined in `definitions`
if detected_variables:
for var in detected_variables:
if var in self.definitions:
self.attributes['eval'] = True
break # No need to continue checking once we know eval should be set
# Assign userid (optional)
self.userid = userid if userid is not None else autoname(3)
def _calculate_content_hash(self, content):
"""Generate hash for content."""
return hashlib.md5("\n".join(content).encode()).hexdigest() if isinstance(content, list) else hashlib.md5(content.encode()).hexdigest()
@property
def content(self):
return self._content
@content.setter
def content(self, new_content):
"""Set content and reinitialize cache if the content has changed."""
new_content_hash = self._calculate_content_hash(new_content)
if new_content_hash != self._content_hash:
self._content = new_content
self._content_hash = new_content_hash
self._invalidate_cache() # Reset cache only if content changes
def _update_content(self, value):
"""Helper to set _content and _content_hash, refreshing cache as necessary."""
# Check if content modification is allowed based on readonly attribute
if getattr(self, 'attributes', {}).get('readonly', False):
raise AttributeError("Cannot modify content. It is read-only.")
# Validate and process content as either a string or list of strings
if isinstance(value, str):
value = remove_comments(value, split_lines=True)
elif not isinstance(value, list) or not all(isinstance(item, str) for item in value):
raise TypeError("The 'content' attribute must be a string or a list of strings.")
# Set _content and calculate hash
super().__setattr__('_content', value)
new_hash = hash(tuple(value))
# If hash changes, reset cache
if new_hash != getattr(self, '_content_hash', None):
super().__setattr__('_content_hash', new_hash)
self._invalidate_cache() # Invalidate cache due to content change
if self._autorefresh:
self.refreshvar() # Refresh variables based on new content
def _invalidate_cache(self):
"""Reset all cache entries."""
# Check if _CACHE is initialized
if not hasattr(self, '_CACHE'):
self._CACHE = {
'variables': {'result': None},
'check_variables': {'result': None}
}
for entry in self._CACHE.values():
entry['result'] = None
@classmethod
def parse_content(cls, content, verbose=False):
"""
Parse the content string and return:
1. Cleaned content (without flags or condition tags).
2. A dictionary of attributes (flags) initialized with default values.
Parameters:
-----------
content : str
The content string to be parsed.
Returns:
--------
cleaned_content : str
The cleaned content with all flag prefixes and condition tags removed.
attributes : dict
A dictionary of attributes (flags) set based on the content prefixes.
"""
attributes = cls.default_attributes.copy()
# Handle empty content
if not content.strip(): # Empty string or whitespace-only
return "", attributes
idx = 0
cleaned_content = []
# If content is a single string, split it into lines
if isinstance(content, str):
content = content.split('\n')
# Remove leading and trailing empty lines
while content and content[0].strip() == '':
content.pop(0)
while content and content[-1].strip() == '':
content.pop()
# Process each remaining line to detect flags and conditions
for line in content:
idx = 0
line = line.strip() # Trim any leading/trailing whitespace
# Parse flags and conditions only at the beginning of the line
while idx < len(line):
ch = line[idx]
if ch == '!':
attributes['eval'] = True
idx += 1
elif ch == '?':
attributes['facultative'] = True
idx += 1
elif ch == '^':
attributes['readonly'] = True
idx += 1
elif ch == '~':
attributes['detectvar'] = False
idx += 1
elif line.startswith('[if:', idx):
# Parse condition
end_idx = line.find(']', idx)
if end_idx == -1:
raise ValueError("Unclosed '[if:]' tag in content")
cond_str = line[idx + 4:end_idx]
if ';eval' in cond_str:
attributes['condeval'] = True
cond_str = cond_str.replace(';eval', '')
attributes['condition'] = cond_str.strip()
idx = end_idx + 1
else:
break # No more flags or conditions, process the rest of the line
# Skip any whitespace after flags or conditions
while idx < len(line) and line[idx] in (' ', '\t'):
idx += 1
# Append the cleaned line (without flags or condition tags)
cleaned_content.append(line[idx:].strip())
# Join the cleaned lines back into a single string
cleaned_content = '\n'.join(cleaned_content)
return cleaned_content, attributes
def __str__(self):
num_attrs = len(self.attributes) # All attributes count
return f"1 line/block, {num_attrs} attributes"
def __repr__(self):
# Template content section
total_lines = len(self.content)
total_variables = len(self.definitions)
line_word = "lines" if total_lines > 1 else "line"
variable_word = "defs" if total_variables > 1 else "def"
content_label = "Template Content"
content_label += "" if self.userid == "" else f" | id:{self.userid}"
available_space = 50 - len(content_label) - 1
repr_str = "-" * 50 + "\n"
repr_str += f"{content_label}{('(' + str(total_lines) + ' ' + line_word + ', ' + str(total_variables) + ' ' + variable_word + ')').rjust(available_space)}\n"
repr_str += "-" * 50 + "\n"
if total_lines < 1:
repr_str += "< empty content >\n"
elif total_lines <= 12:
# If content has 12 or fewer lines, display all lines
for line in self.content:
truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line
repr_str += f"{truncated_line:<50}\n"
else:
# Display first three lines, middle three lines, and last three lines
for line in self.content[:3]:
truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line
repr_str += f"{truncated_line:<50}\n"
repr_str += "\t\t[...]\n"
mid_start = total_lines // 2 - 1
mid_end = mid_start + 3
for line in self.content[mid_start:mid_end]:
truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line
repr_str += f"{truncated_line:<50}\n"
repr_str += "\t\t[...]\n"
for line in self.content[-3:]:
truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line
repr_str += f"{truncated_line:<50}\n"
# Detected Variables section in 3-column format
detected_variables = self.detect_variables()
if detected_variables:
repr_str += "-" * 50 + "\n"
# Count the number of defined and missing variables
defined_variables = set(self.definitions.keys()) if self.definitions else set()
variable_word = 'Variables' if len(detected_variables) > 1 else 'Variable'
detected_set = set(detected_variables)
missing_variables = detected_set - defined_variables
defined_count = len(detected_set & defined_variables)
missing_count = len(missing_variables)
total_variables = len(detected_set)
repr_str += f"Detected {variable_word}{('(' + str(total_variables) + ' / +' + str(defined_count) + ' / -' + str(missing_count) + ')').rjust(50 - len('Detected Variables') - 1)}\n"
repr_str += "-" * 50 + "\n"
# Display variables with status:
# [+] for defined variables with values other than "${varname}"
# [-] for defined variables with default values "${varname}"
# [ ] for undefined variables
for i in range(0, len(detected_variables), 3):
var_set = detected_variables[i:i+3]
line = ""
for var in var_set:
var_name = (var[:10] + ' ') if len(var) > 10 else var.ljust(11)
if var in defined_variables:
# Check if it's set to its default value (i.e., "${varname}")
if self.definitions[var] == f"${{{var}}}":
flag = '[-]'
else:
flag = '[+]'
else:
flag = '[ ]'
line += f"{flag} {var_name} "
repr_str += f"{line}\n"
# Attribute section in 3 columns
repr_str += "-" * 50 + "\n"
repr_str += f"Template Attributes{('(' + str(len(self.attributes)) + ' attributes)').rjust(50 - len('Template Attributes') - 1)}\n"
repr_str += "-" * 50 + "\n"
# Create a compact three-column layout for attributes with checkboxes
attr_items = [(attr, '[x]' if value else '[ ]') for attr, value in self.attributes.items() if attr != 'definitions']
for i in range(0, len(attr_items), 3):
attr_set = attr_items[i:i+3]
line = ""
for attr, value in attr_set:
attr_name = (attr[:10] + ' ') if len(attr) > 10 else attr.ljust(11)
line += f"{value} {attr_name} "
repr_str += f"{line}\n"
return repr_str
def __setattr__(self, name, value):
# Handle specific attributes with validation
if name in ['facultative', 'eval', 'readonly']:
if not isinstance(value, bool):
raise TypeError(f"The '{name}' attribute must be a Boolean, not {type(value).__name__}.")
elif name == 'condition':
if not isinstance(value, str) and value is not None:
raise TypeError(f"The 'condition' attribute must be a string or None, not {type(value).__name__}.")
elif name == 'content':
# Use helper to manage content updates and cache invalidation
self._update_content(value)
return # Exit to avoid further processing since _update_content handles the setting
elif name == 'definitions':
if not isinstance(value, (lambdaScriptdata, scriptdata)) and value is not None:
raise TypeError(f"The 'definitions' must be a lambdaScriptdata or scriptdata, not {type(value).__name__}.")
# Set attributes directly for key fields and avoid recursion
if name in ['userid', 'attributes', 'definitions', '_content', '_content_hash', '_autorefresh']:
super().__setattr__(name, value)
else:
# Ensure 'attributes' is initialized before updating
if not hasattr(self, 'attributes') or self.attributes is None:
self.attributes = {}
self.attributes[name] = value
def __getattr__(self, name):
"""
Handles attribute retrieval, checking the following in order:
1. If 'name' is in default_attributes, return the value from attributes if it exists,
otherwise return the default value from default_attributes.
2. If 'name' is 'content', return the content (or an empty string if content is not set).
3. If 'name' exists in the attributes dictionary, return its value.
4. If attributes itself exists in __dict__, return the value from attributes if 'name' is found.
5. If all previous checks fail, raise an AttributeError indicating that 'name' is not found.
"""
# Ensure '_CACHE' is always accessible without a KeyError
if name == '_CACHE':
# Initialize _CACHE if it does not exist
if '_CACHE' not in self.__dict__:
self.__dict__['_CACHE'] = {
'variables': {'result': None},
'check_variables': {'result': None}
}
return self.__dict__['_CACHE'] # Access _CACHE directly
# Step 1: Check if 'name' is a valid attribute in default_attributes
if name in self.default_attributes:
# Directly access __dict__ to avoid recursive lookup
attributes = self.__dict__.get('attributes', {})
return attributes.get(name, self.default_attributes[name])
# Step 2: Special case for 'content'
if name == 'content':
# Directly access __dict__ to avoid recursion
return self.__dict__.get('_content', "")
if name == "_autorefresh":
return self.__dict__.get('_autorefresh', True)
# Step 3: Check if 'name' exists in 'attributes' and return its value directly
attributes = self.__dict__.get('attributes', {})
if name in attributes:
return attributes[name]
# Step 4: Check if 'attributes' exists in __dict__ and retrieve 'name' if present
if 'attributes' in self.__dict__ and name in self.__dict__['attributes']:
return self.__dict__['attributes'][name]
# Step 5: If none of the above conditions are met, raise an AttributeError
raise AttributeError(f"'{self.__class__.__name__}' object has no attribute '{name}'")
def do(self, protected=True, softrun=False, USER=lambdaScriptdata()):
"""
Executes or prepares the script template content based on its attributes and the `softrun` flag.
Parameters
----------
protected : bool, optional
If `True` (default), variable evaluation uses a protected environment, safeguarding global definitions
and system attributes from modification during execution.
softrun : bool, optional
Determines if the script is evaluated in a preliminary mode:
- If `True`, returns the script content without full evaluation, allowing for a preview or
an initial capture of local definitions without substituting variables.
- If `False` (default), processes the script with full evaluation, applying all substitutions
defined in `definitions`.
USER : lambdaScriptdata, optional
A `lambdaScriptdata` instance with user-provided definitions, which supplement or override
template-level definitions during execution.
Returns
-------
str
The processed or original script content as a single string.
- Returns an empty string if `facultative` is set to `True`, or if `condition` is `False`
and does not meet any specified evaluation requirements.
Notes
-----
- `facultative`: If `True`, the method returns an empty string, effectively skipping execution of the content.
- `condition`: If specified, this attribute is evaluated to decide whether the content should be processed
(default `True` if `condition` is `None`). If `condeval` is `True`, the condition itself undergoes
evaluation using Python's `eval`.
- `eval`: If `True` and `softrun` is `False`, performs evaluation for variable substitution on the
content lines, applying transformations based on both `definitions` and `USER` definitions if provided.
This allows variables to be dynamically substituted within the script content.
Processing Workflow
-------------------
1. **Facultative Check**: If the `facultative` attribute is `True`, immediately returns an empty string.
2. **Condition Check**: If a `condition` is specified, it is evaluated:
- If `condeval` is `True`, the condition undergoes evaluation (using `eval`).
- If the evaluated `condition` is `False`, returns an empty string, skipping execution.
3. **Execution Based on `softrun`**:
- If `softrun` is `True`, returns the original content without variable substitution, providing a preview.
- If `softrun` is `False`, evaluates the content lines based on `definitions` and `USER` if applicable.
4. **Variable Formatting**: During evaluation, lists and tuples are formatted into strings with prefixed comments,
enhancing readability and handling complex data structures directly in the script.
Example
-------
>>> template = ScriptTemplate(
... content=["variable x equal ${var1}", "print 'Value of x is ${var1}'"],
... definitions=lambdaScriptdata(var1=10)
... )
>>> template.do()
"variable x equal 10\nprint 'Value of x is 10'"
"""
# If 'facultative' is set to True, return an empty string immediately
if self.attributes.get("facultative", False):
return ""
# Evaluate condition if present
cond = True
if self.attributes.get("condition") is not None:
condition_expr = self.definitions.formateval(self.attributes["condition"], protected)
cond = eval(condition_expr) if self.attributes.get("condeval", False) else condition_expr
# Process based on softrun flag
if softrun:
return "\n".join(self.content) if cond else ""
# Perform full processing when softrun is False
if cond:
if self.attributes.get("eval", False):
#return "\n".join([self.definitions.formateval(line, protected) for line in self.content])
inputs = self.definitions + USER
for k in inputs.keys():
if isinstance(inputs.getattr(k),list):
inputs.setattr(k,"% "+span(inputs.getattr(k)))
elif isinstance(inputs.getattr(k),tuple):
inputs.setattr(k,"% "+span(inputs.getattr(k),sep=","))
return "\n".join([inputs.formateval(line, protected) for line in self.content])
else:
return "\n".join(self.content)
return ""
def detect_variables(self):
"""
Detects variables in the content of the template using the pattern r'\$\{(\w+)\}'.
Returns:
--------
list
A list of unique variable names detected in the content.
"""
# Check cache first
cache_entry = self._CACHE['variables']
if cache_entry['result'] is not None:
return cache_entry['result']
# Detect variables if cache miss or content changed
variable_pattern = re.compile(r'\$\{(\w+)\}')
detected_vars = {variable for line in self.content for variable in variable_pattern.findall(line)}
# Cache the result and return output
cache_entry['result'] = list(detected_vars)
return cache_entry['result']
def refreshvar(self,globaldefinitions = lambdaScriptdata()):
"""
Detects variables in the content and adds them to definitions if needed.
This method ensures that variables like ${varname} are correctly detected
and added to the definitions if they are missing.
use globaldefinitions to add a list of global variables/definitions
"""
if self.attributes["detectvar"] and isinstance(self.content, list) and self.definitions:
variables = self.detect_variables()
for varname in variables:
if (varname not in self.definitions) and (varname not in globaldefinitions):
self.definitions.setattr(varname, "${" + varname + "}")
def check_variables(self, verbose=True, seteval=True):
"""
Checks for undefined variables in the ScriptTemplate instance.
Parameters:
-----------
verbose : bool, optional, default=True
If True, prints information about variables for the template.
Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined.
seteval : bool, optional, default=True
If True, sets the `eval` attribute to True if at least one variable is defined or set to its default value.
Returns:
--------
out : dict
A dictionary with lists of default variables, set variables, and undefined variables:
- "defaultvalues": Variables set to their default value (${varname}).
- "setvalues": Variables defined with a specific value.
- "undefined": Variables that are undefined.
"""
# Check cache first
cache_entry = self._CACHE['check_variables']
if cache_entry['result'] is not None:
return cache_entry['result']
# Main
out = {"defaultvalues": [], "setvalues": [], "undefined": []}
detected_vars = self.detect_variables()
defined_vars = set(self.definitions.keys()) if self.definitions else set()
set_values, default_values, undefined_vars = [], [], []
if verbose:
print(f"\nTEMPLATE {self.userid} variables:")
for var in detected_vars:
if var in defined_vars:
if self.definitions[var] == f"${{{var}}}": # Check for default value
default_values.append(var)
if verbose:
print(f"[-] {var}") # Variable is set to its default value
else:
set_values.append(var)
if verbose:
print(f"[+] {var}") # Variable is defined with a specific value
else:
undefined_vars.append(var)
if verbose:
print(f"[ ] {var}") # Variable is not defined
# If seteval is True, set eval to True if at least one variable is defined or set to its default
if seteval and (set_values or default_values):
self.attributes['eval'] = True # Set eval in the attributes dictionary
# Update the output dictionary
out["defaultvalues"].extend(default_values)
out["setvalues"].extend(set_values)
out["undefined"].extend(undefined_vars)
# update Cache and return output
cache_entry['result'] = out
return out
def is_variable_defined(self, var_name):
"""
Checks if a specified variable is defined (either as a default value or a set value).
Parameters:
-----------
var_name : str
The name of the variable to check.
Returns:
--------
bool
True if the variable is defined (either as a default or a set value), False if not.
Raises:
-------
ValueError
If `var_name` is invalid or undefined in the template.
"""
if not isinstance(var_name, str):
raise ValueError("Variable name must be a string.")
variable_status = self.check_variables(verbose=False, seteval=False)
# Check if the variable is in default values or set values
if var_name in variable_status["defaultvalues"] or var_name in variable_status["setvalues"]:
return True
else:
raise ValueError(f"Variable '{var_name}' is undefined in the template.")
def is_variable_set_value_only(self, var_name):
"""
Checks if a specified variable is defined and set to a specific (non-default) value.
Parameters:
-----------
var_name : str
The name of the variable to check.
Returns:
--------
bool
True if the variable is defined with a set (non-default) value, False if not.
Raises:
-------
ValueError
If `var_name` is invalid or not defined in the template.
"""
if not isinstance(var_name, str):
raise ValueError("Variable name must be a string.")
variable_status = self.check_variables(verbose=False, seteval=False)
# Check if the variable is in set values only (not default values)
if var_name in variable_status["setvalues"]:
return True
elif var_name in variable_status["defaultvalues"]:
return False # Defined but only at its default value
else:
raise ValueError(f"Variable '{var_name}' is undefined in the template.")
class dscript:
"""
dscript: A Dynamic Script Management Class
The `dscript` class is designed to manage and dynamically generate multiple
lines/items of a script, typically for use with LAMMPS or similar simulation tools.
Each line in the script is represented as a `ScriptTemplate` object, and the
class provides tools to easily manipulate, concatenate, and execute these
script lines/items.
Key Features:
-------------
- **Dynamic Script Generation**: Define and manage script lines/items dynamically,
with variables that can be substituted at runtime.
- **Conditional Execution**: Add conditions to script lines/items so they are only
included if certain criteria are met.
- **Script Concatenation**: Combine multiple script objects while maintaining
control over variable precedence and script structure.
- **User-Friendly Access**: Easily access and manipulate script lines/items using
familiar Python constructs like indexing and iteration.
Practical Use Cases:
--------------------
- **Custom LAMMPS Scripts**: Generate complex simulation scripts with varying
parameters based on dynamic conditions.
- **Automation**: Automate the creation of scripts for batch processing,
simulations, or other repetitive tasks.
- **Script Management**: Manage and version-control different script sections
and configurations easily.
Methods:
--------
__init__(self, name=None):
Initializes a new `dscript` object with an optional name.
__getitem__(self, key):
Retrieves a script line by its key. If a list of keys is provided,
returns a new `dscript` object with lines/items reordered accordingly.
__setitem__(self, key, value):
Adds or updates a script line. If the value is an empty list, the
corresponding script line is removed.
__delitem__(self, key):
Deletes a script line by its key.
__contains__(self, key):
Checks if a key exists in the script. Allows usage of `in` keyword.
__iter__(self):
Returns an iterator over the script lines/items, allowing for easy iteration
through all lines/items in the `TEMPLATE`.
__len__(self):
Returns the number of script lines/items currently stored in the `TEMPLATE`.
keys(self):
Returns the keys of the `TEMPLATE` dictionary.
values(self):
Returns the `ScriptTemplate` objects stored as values in the `TEMPLATE`.
items(self):
Returns the keys and `ScriptTemplate` objects from the `TEMPLATE` as pairs.
__str__(self):
Returns a human-readable summary of the script, including the number
of lines/items and total attributes. Shortcut: `str(S)`.
__repr__(self):
Provides a detailed string representation of the entire `dscript` object,
including all script lines/items and their attributes. Useful for debugging.
reorder(self, order):
Reorders the script lines/items based on a given list of indices, creating a
new `dscript` object with the reordered lines/items.
get_content_by_index(self, index, do=True, protected=True):
Returns the processed content of the script line at the specified index,
with variables substituted based on the definitions and conditions applied.
get_attributes_by_index(self, index):
Returns the attributes of the script line at the specified index.
add_dynamic_script(self, key, content="", definitions=None, verbose=None, **USER):
Add a dynamic script step to the `dscript` object.
createEmptyVariables(self, vars):
Creates new variables in `DEFINITIONS` if they do not already exist.
Accepts a single variable name or a list of variable names.
do(self, printflag=None, verbose=None):
Executes all script lines/items in the `TEMPLATE`, concatenating the results,
and handling variable substitution. Returns the full script as a string.
script(self, **userdefinitions):
Generates a `lamdaScript` object from the current `dscript` object,
applying any additional user definitions provided.
pipescript(self, printflag=None, verbose=None, **USER):
Returns a `pipescript` object by combining script objects for all keys
in the `TEMPLATE`. Each key in `TEMPLATE` is handled separately, and
the resulting scripts are combined using the `|` operator.
save(self, filename=None, foldername=None, overwrite=False):
Saves the current script instance to a text file in a structured format.
Includes metadata, global parameters, definitions, templates, and attributes.
write(scriptcontent, filename=None, foldername=None, overwrite=False):
Writes the provided script content to a specified file in a given folder,
with a header added if necessary, ensuring the correct file format.
load(cls, filename, foldername=None, numerickeys=True):
Loads a script instance from a text file, restoring the content, definitions,
templates, and attributes. Handles parsing and variable substitution based on
the structure of the file.
parsesyntax(cls, content, numerickeys=True):
Parses a script instance from a string input, restoring the content, definitions,
templates, and attributes. Handles parsing and variable substitution based on the
structure of the provided string, ensuring the correct format and key conversions
when necessary.
Example:
--------
# Create a dscript object
R = dscript(name="MyScript")
# Define global variables (DEFINITIONS)
R.DEFINITIONS.dimension = 3
R.DEFINITIONS.units = "$si"
# Add script lines
R[0] = "dimension ${dimension}"
R[1] = "units ${units}"
# Generate and print the script
sR = R.script()
print(sR.do())
Attributes:
-----------
name : str
The name of the script, useful for identification.
TEMPLATE : dict
A dictionary storing script lines/items, with keys to identify each line.
DEFINITIONS : lambdaScriptdata
Stores the variables and parameters used within the script lines/items.
"""
# Class variable to list attributes that should not be treated as TEMPLATE entries
construction_attributes = {'name', 'SECTIONS', 'section', 'position', 'role', 'description',
'userid', 'verbose', 'printflag', 'DEFINITIONS', 'TEMPLATE',
'version','license','email'
}
def __init__(self, name=None,
SECTIONS = ["DYNAMIC"],
section = 0,
position = None,
role = "dscript instance",
description = "dynamic script",
userid = "dscript",
version = None,
license = None,
email = None,
printflag = False,
verbose = False,
verbosity = None,
**userdefinitions
):
"""
Initializes a new `dscript` object.
The constructor sets up a new `dscript` object, which allows you to
define and manage a script composed of multiple lines/items. Each line is
stored in the `TEMPLATE` dictionary, and variables used in the script
are stored in `DEFINITIONS`.
Parameters:
-----------
name : str, optional
The name of the script. If no name is provided, a random name will
be generated automatically. The name is useful for identifying the
script, especially when managing multiple scripts.
Example:
--------
# Create a dscript object with a specific name
R = dscript(name="ExampleScript")
# Or create a dscript object with a random name
R = dscript()
After initialization, you can start adding script lines/items and defining variables.
"""
if name is None:
self.name = autoname()
else:
self.name = name
if (version is None) or (license is None) or (email is None):
metadata = get_metadata() # retrieve all metadata
version = metadata["version"] if version is None else version
license = metadata["license"] if license is None else license
email = metadata["email"] if email is None else email
self.SECTIONS = SECTIONS if isinstance(SECTIONS,(list,tuple)) else [SECTIONS]
self.section = section
self.position = position if position is not None else 0
self.role = role
self.description = description
self.userid = userid
self.version = version
self.license = license
self.email = email
self.printflag = printflag
self.verbose = verbose if verbosity is None else verbosity>0
self.verbosity = 0 if not verbose else verbosity
self.DEFINITIONS = lambdaScriptdata(**userdefinitions)
self.TEMPLATE = {}
def __getattr__(self, attr):
# During construction phase, we only access the predefined attributes
if 'TEMPLATE' not in self.__dict__:
if attr in self.__dict__:
return self.__dict__[attr]
raise AttributeError(f"'dscript' object has no attribute '{attr}'")
# If TEMPLATE is initialized and attr is in TEMPLATE, return the corresponding ScriptTemplate entry
if attr in self.TEMPLATE:
return self.TEMPLATE[attr]
# Fall back to internal __dict__ attributes if not in TEMPLATE
if attr in self.__dict__:
return self.__dict__[attr]
raise AttributeError(f"'dscript' object has no attribute '{attr}'")
def __setattr__(self, attr, value):
# Handle internal attributes during the construction phase
if 'TEMPLATE' not in self.__dict__:
self.__dict__[attr] = value
return
# Handle construction attributes separately (name, TEMPLATE, USER)
if attr in self.construction_attributes:
self.__dict__[attr] = value
# If TEMPLATE exists, and the attribute is intended for it, update TEMPLATE
elif 'TEMPLATE' in self.__dict__:
# Convert the value to a ScriptTemplate if needed, and update the template
if attr in self.TEMPLATE:
# Modify the existing ScriptTemplate object for this attribute
if isinstance(value, str):
self.TEMPLATE[attr].content = value
elif isinstance(value, dict):
self.TEMPLATE[attr].attributes.update(value)
else:
# Create a new entry if it does not exist
self.TEMPLATE[attr] = ScriptTemplate(content=value,definitions=self.DEFINITIONS,verbose=self.verbose,userid=attr)
else:
# Default to internal attributes
self.__dict__[attr] = value
def __getitem__(self, key):
"""
Implements index-based retrieval, slicing, or reordering for dscript objects.
Parameters:
-----------
key : int, slice, list, or str
- If `key` is an int, returns the corresponding template at that index.
Supports negative indices to retrieve templates from the end.
- If `key` is a slice, returns a new `dscript` object containing the templates in the specified range.
- If `key` is a list, reorders the TEMPLATE based on the list of indices or keys.
- If `key` is a string, treats it as a key and returns the corresponding template.
Returns:
--------
dscript or ScriptTemplate : Depending on the type of key, returns either a new dscript object (for slicing or reordering)
or a ScriptTemplate object (for direct key access).
"""
# Handle list-based reordering
if isinstance(key, list):
return self.reorder(key)
# Handle slicing
elif isinstance(key, slice):
new_dscript = dscript(name=f"{self.name}_slice_{key.start}_{key.stop}")
keys = list(self.TEMPLATE.keys())
for k in keys[key]:
new_dscript.TEMPLATE[k] = self.TEMPLATE[k]
return new_dscript
# Handle integer indexing with support for negative indices
elif isinstance(key, int):
keys = list(self.TEMPLATE.keys())
if key in self.TEMPLATE: # Check if the integer exists as a key
return self.TEMPLATE[key]
if key < 0: # Support negative indices
key += len(keys)
if key < 0 or key >= len(keys): # Check for index out of range
raise IndexError(f"Index {key - len(keys)} is out of range")
# Return the template corresponding to the integer index
return self.TEMPLATE[keys[key]]
# Handle key-based access (string keys)
elif isinstance(key, str):
if key in self.TEMPLATE:
return self.TEMPLATE[key]
raise KeyError(f"Key '{key}' does not exist in TEMPLATE.")
def __setitem__(self, key, value):
if (value == []) or (value is None):
# If the value is an empty list, delete the corresponding key
del self.TEMPLATE[key]
else:
# Otherwise, set the key to the new ScriptTemplate
self.TEMPLATE[key] = ScriptTemplate(value, definitions=self.DEFINITIONS, verbose=self.verbose, userid=key)
def __delitem__(self, key):
del self.TEMPLATE[key]
def __iter__(self):
return iter(self.TEMPLATE.items())
# def keys(self):
# return self.TEMPLATE.keys()
# def values(self):
# return (s.content for s in self.TEMPLATE.values())
def __contains__(self, key):
return key in self.TEMPLATE
def __len__(self):
return len(self.TEMPLATE)
def items(self):
return ((key, s.content) for key, s in self.TEMPLATE.items())
def __str__(self):
num_TEMPLATE = len(self.TEMPLATE)
total_attributes = sum(len(s.attributes) for s in self.TEMPLATE.values())
return f"{num_TEMPLATE} TEMPLATE, {total_attributes} attributes"
def __repr__(self):
"""Representation of dscript object with additional properties."""
repr_str = f"dscript object ({self.name})\n"
# Add description, role, and version at the beginning
repr_str += f"id: {self.userid}\n" if self.userid else ""
repr_str += f"Descr: {self.description}\n" if self.description else ""
repr_str += f"Role: {self.role} (v. {self.version})\n"
repr_str += f'SECTIONS {span(self.SECTIONS,",","[","]")} | index: {self.section} | position: {self.position}\n'
repr_str += f"\n\n\twith {len(self.TEMPLATE)} TEMPLATE"
repr_str += "s" if len(self.TEMPLATE)>1 else ""
repr_str += f" (with {len(self.DEFINITIONS)} DEFINITIONS)\n\n"
# Add TEMPLATE information
c = 0
for k, s in self.TEMPLATE.items():
head = f"| idx: {c} | key: {k} |"
dashes = (50 - len(head)) // 2
repr_str += "-" * 50 + "\n"
repr_str += f"{'<' * dashes}{head}{'>' * dashes}\n{repr(s)}\n"
c += 1
return repr_str
def keys(self):
"""Return the keys of the TEMPLATE."""
return self.TEMPLATE.keys()
def values(self):
"""Return the ScriptTemplate objects in TEMPLATE."""
return self.TEMPLATE.values()
def reorder(self, order):
"""Reorder the TEMPLATE lines according to a list of indices."""
# Get the original items as a list of (key, value) pairs
original_items = list(self.TEMPLATE.items())
# Create a new dictionary with reordered scripts, preserving original keys
new_scripts = {original_items[i][0]: original_items[i][1] for i in order}
# Create a new dscript object with reordered scripts
reordered_script = dscript()
reordered_script.TEMPLATE = new_scripts
return reordered_script
def get_content_by_index(self, index, do=True, protected=True):
"""
Returns the content of the ScriptTemplate at the specified index.
Parameters:
-----------
index : int
The index of the template in the TEMPLATE dictionary.
do : bool, optional (default=True)
If True, the content will be processed based on conditions and evaluation flags.
protected : bool, optional (default=True)
Controls whether variable evaluation is protected (e.g., prevents overwriting certain definitions).
Returns:
--------
str or list of str
The content of the template after processing, or an empty string if conditions or evaluation flags block it.
"""
key = list(self.TEMPLATE.keys())[index]
s = self.TEMPLATE[key].content
att = self.TEMPLATE[key].attributes
# Return an empty string if the facultative attribute is True and do is True
if att["facultative"] and do:
return ""
# Evaluate the condition (if any)
if att["condition"] is not None:
cond = eval(self.DEFINITIONS.formateval(att["condition"], protected))
else:
cond = True
# If the condition is met, process the content
if cond:
# Apply formateval only if the eval attribute is True and do is True
if att["eval"] and do:
if isinstance(s, list):
# Apply formateval to each item in the list if s is a list
return [self.DEFINITIONS.formateval(line, protected) for line in s]
else:
# Apply formateval to the single string content
return self.DEFINITIONS.formateval(s, protected)
else:
return s # Return the raw content if no evaluation is needed
elif do:
return "" # Return an empty string if the condition is not met and do is True
else:
return s # Return the raw content if do is False
def get_attributes_by_index(self, index):
""" Returns the attributes of the ScriptTemplate at the specified index."""
key = list(self.TEMPLATE.keys())[index]
return self.TEMPLATE[key].attributes
def __add__(self, other):
"""
Concatenates two dscript objects, creating a new dscript object that combines
the TEMPLATE and DEFINITIONS of both. This operation avoids deep copying
of definitions by creating a new lambdaScriptdata instance from the definitions.
Parameters:
-----------
other : dscript
The other dscript object to concatenate with the current one.
Returns:
--------
result : dscript
A new dscript object with the concatenated TEMPLATE and merged DEFINITIONS.
Raises:
-------
TypeError:
If the other object is not an instance of dscript, script, pipescript
"""
if isinstance(other, dscript):
# Step 1: Merge global DEFINITIONS from both self and other
result = dscript(name=self.name+"+"+other.name,**(self.DEFINITIONS + other.DEFINITIONS))
# Step 2: Start by copying the TEMPLATE from self (no deepcopy for performance reasons)
result.TEMPLATE = self.TEMPLATE.copy()
# Step 3: Ensure that the local definitions for `self.TEMPLATE` are properly copied
for key, value in self.TEMPLATE.items():
result.TEMPLATE[key].definitions = lambdaScriptdata(**self.TEMPLATE[key].definitions)
# Step 4: Track the next available index if keys need to be created
next_index = len(result.TEMPLATE)
# Step 5: Add items from the other dscript object, updating or generating new keys as needed
for key, value in other.TEMPLATE.items():
if key in result.TEMPLATE:
# If key already exists in result, assign a new unique index
while next_index in result.TEMPLATE:
next_index += 1
new_key = next_index
else:
# Use the original key if it doesn't already exist
new_key = key
# Copy the TEMPLATE's content and definitions from `other`
result.TEMPLATE[new_key] = value
# Merge the local TEMPLATE definitions from `other`
result.TEMPLATE[new_key].definitions = lambdaScriptdata(**other.TEMPLATE[key].definitions)
return result
elif isinstance(other,script):
return self.script() + script
elif isinstance(other,pipescript):
return self.pipescript() | script
else:
raise TypeError(f"Cannot concatenate 'dscript' with '{type(other).__name__}'")
def __call__(self, *keys):
"""
Extracts subobjects from the dscript based on the provided keys.
Parameters:
-----------
*keys : one or more keys that correspond to the `TEMPLATE` entries.
Returns:
--------
A new `dscript` object that contains only the selected script lines/items, along with
the relevant definitions and attributes from the original object.
"""
# Create a new dscript object to store the extracted sub-objects
result = dscript(name=f"{self.name}_subobject")
# Copy the TEMPLATE entries corresponding to the provided keys
for key in keys:
if key in self.TEMPLATE:
result.TEMPLATE[key] = self.TEMPLATE[key]
else:
raise KeyError(f"Key '{key}' not found in TEMPLATE.")
# Copy the DEFINITIONS from the current object
result.DEFINITIONS = copy.deepcopy(self.DEFINITIONS)
# Copy other relevant attributes
result.SECTIONS = self.SECTIONS[:]
result.section = self.section
result.position = self.position
result.role = self.role
result.description = self.description
result.userid = self.userid
result.version = self.version
result.verbose = self.verbose
result.printflag = self.printflag
return result
def createEmptyVariables(self, vars):
"""
Creates empty variables in DEFINITIONS if they don't already exist.
Parameters:
-----------
vars : str or list of str
The variable name or list of variable names to be created in DEFINITIONS.
"""
if isinstance(vars, str):
vars = [vars] # Convert single variable name to list for uniform processing
for varname in vars:
if varname not in self.DEFINITIONS:
self.DEFINITIONS.setattr(varname,"${" + varname + "}")
def do(self, printflag=None, verbose=None, softrun=False, return_definitions=False,comment_chars="#%", **USER):
"""
Executes or previews all `ScriptTemplate` instances in `TEMPLATE`, concatenating their processed content.
Allows for optional headers and footers based on verbosity settings, and offers a preliminary preview mode with `softrun`.
Accumulates definitions across all templates if `return_definitions=True`.
Parameters
----------
printflag : bool, optional
If `True`, enables print output during execution. Defaults to the instance's print flag if `None`.
verbose : bool, optional
If `True`, includes headers and footers in the output, providing additional detail.
Defaults to the instance's verbosity setting if `None`.
softrun : bool, optional
If `True`, executes the script in a preliminary mode:
- Bypasses full variable substitution for a preview of the content, useful for validating structure.
- If `False` (default), performs full processing, including variable substitutions and evaluations.
return_definitions : bool, optional
If `True`, returns a tuple where the second element contains accumulated definitions from all templates.
If `False` (default), returns only the concatenated output.
comment_chars : str, optional (default: "#%")
A string containing characters to identify the start of a comment.
Any of these characters will mark the beginning of a comment unless within quotes.
**USER : keyword arguments
Allows for the provision of additional user-defined definitions, where each keyword represents a
definition key and the associated value represents the definition's content. These definitions
can override or supplement template-level definitions during execution.
Returns
-------
str or tuple
- If `return_definitions=False`, returns the concatenated output of all `ScriptTemplate` instances,
with optional headers, footers, and execution summary based on verbosity.
- If `return_definitions=True`, returns a tuple of (`output`, `accumulated_definitions`), where
`accumulated_definitions` contains all definitions used across templates.
Notes
-----
- Each `ScriptTemplate` in `TEMPLATE` is processed individually using its own `do()` method.
- The `softrun` mode provides a preliminary content preview without full variable substitution,
helpful for inspecting the script structure or gathering local definitions.
- When `verbose` is enabled, the method includes detailed headers, footers, and a summary of processed and
ignored items, providing insight into the script's construction and variable usage.
- Accumulated definitions from each `ScriptTemplate` are combined if `return_definitions=True`, which can be
useful for tracking all variables and definitions applied across the templates.
Example
-------
>>> dscript_instance = dscript(name="ExampleScript")
>>> dscript_instance.TEMPLATE[0] = ScriptTemplate(
... content=["units ${units}", "boundary ${boundary}"],
... definitions=lambdaScriptdata(units="lj", boundary="p p p"),
... attributes={'eval': True}
... )
>>> dscript_instance.do(verbose=True, units="real")
# Output:
# --------------
# TEMPLATE "ExampleScript"
# --------------
units real
boundary p p p
# ---> Total items: 2 - Ignored items: 0
"""
printflag = self.printflag if printflag is None else printflag
verbose = self.verbose if verbose is None else verbose
header = f"# --------------[ TEMPLATE \"{self.name}\" ]--------------" if verbose else ""
footer = "# --------------------------------------------" if verbose else ""
# Initialize output, counters, and optional definitions accumulator
output = [header]
non_empty_lines = 0
ignored_lines = 0
accumulated_definitions = lambdaScriptdata() if return_definitions else None
for key, template in self.TEMPLATE.items():
# Process each template with softrun if enabled, otherwise use full processing
result = template.do(softrun=softrun,USER=lambdaScriptdata(**USER))
if result:
# Apply comment removal based on verbosity
final_result = result if verbose else remove_comments(result,comment_chars=comment_chars)
if final_result or verbose:
output.append(final_result)
non_empty_lines += 1
else:
ignored_lines += 1
# Accumulate definitions if return_definitions is enabled
if return_definitions:
accumulated_definitions += template.definitions
else:
ignored_lines += 1
# Add footer summary if verbose
nel_word = 'items' if non_empty_lines > 1 else 'item'
il_word = 'items' if ignored_lines > 1 else 'item'
footer += f"\n# ---> Total {nel_word}: {non_empty_lines} - Ignored {il_word}: {ignored_lines}" if verbose else ""
output.append(footer)
# Concatenate output and determine return type based on return_definitions
output_content = "\n".join(output)
return (output_content, accumulated_definitions) if return_definitions else output_content
def script(self,printflag=None, verbose=None, verbosity=None, **USER):
"""
returns the corresponding script
"""
printflag = self.printflag if printflag is None else printflag
verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose)
verbosity = 0 if not verbose else verbosity
return lamdaScript(self,persistentfile=True, persistentfolder=None,
printflag=printflag, verbose=verbose,
**USER)
def pipescript(self, *keys, printflag=None, verbose=None, verbosity=None, **USER):
"""
Returns a pipescript object by combining script objects corresponding to the given keys.
Parameters:
-----------
*keys : one or more keys that correspond to the `TEMPLATE` entries.
printflag : bool, optional
Whether to enable printing of additional information.
verbose : bool, optional
Whether to run in verbose mode for debugging or detailed output.
**USER : dict, optional
Additional user-defined variables to pass into the script.
Returns:
--------
A `pipescript` object that combines the script objects generated from the selected
dscript subobjects.
"""
# Start with an empty pipescript
# combined_pipescript = None
# # Iterate over the provided keys to extract corresponding subobjects
# for key in keys:
# # Extract the dscript subobject for the given key
# sub_dscript = self(key)
# # Convert the dscript subobject to a script object, passing USER, printflag, and verbose
# script_obj = sub_dscript.script(printflag=printflag, verbose=verbose, **USER)
# # Combine script objects into a pipescript object
# if combined_pipescript is None:
# combined_pipescript = pipescript(script_obj) # Initialize pipescript
# else:
# combined_pipescript = combined_pipescript | script_obj # Use pipe operator
# if combined_pipescript is None:
# ValueError('The conversion to pipescript from {type{self}} falled')
# return combined_pipescript
printflag = self.printflag if printflag is None else printflag
verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose)
verbosity = 0 if not verbose else verbosity
# Loop over all keys in TEMPLATE and combine them
combined_pipescript = None
for key in self.keys():
# Create a new dscript object with only the current key in TEMPLATE
focused_dscript = dscript(name=f"{self.name}:{key}")
focused_dscript.TEMPLATE[key] = self.TEMPLATE[key]
focused_dscript.TEMPLATE[key].definitions = scriptdata(**self.TEMPLATE[key].definitions)
focused_dscript.DEFINITIONS = scriptdata(**self.DEFINITIONS)
focused_dscript.SECTIONS = self.SECTIONS[:]
focused_dscript.section = self.section
focused_dscript.position = self.position
focused_dscript.role = self.role
focused_dscript.description = self.description
focused_dscript.userid = self.userid
focused_dscript.version = self.version
focused_dscript.verbose = verbose
focused_dscript.printflag = printflag
# Convert the focused dscript object to a script object
script_obj = focused_dscript.script(printflag=printflag, verbose=verbose, **USER)
# Combine the script objects into a pipescript object using the pipe operator
if combined_pipescript is None:
combined_pipescript = pipescript(script_obj) # Initialize pipescript
else:
combined_pipescript = combined_pipescript | pipescript(script_obj) # Use pipe operator
if combined_pipescript is None:
ValueError('The conversion to pipescript from {type{self}} falled')
return combined_pipescript
@staticmethod
def header(name=None, verbose=True, verbosity=None, style=2, filepath=None, version=None, license=None, email=None):
"""
Generate a formatted header for the DSCRIPT file.
### Parameters:
name (str, optional): The name of the script. If None, "Unnamed" is used.
verbose (bool, optional): Whether to include the header. Default is True.
verbosity (int, optional): Verbosity level. Overrides `verbose` if specified.
style (int, optional): ASCII style for the header (default=2).
filepath (str, optional): Full path to the file being saved. If None, the line mentioning the file path is excluded.
version (str, optional): DSCRIPT version. If None, it is omitted from the header.
license (str, optional): License type. If None, it is omitted from the header.
email (str, optional): Contact email. If None, it is omitted from the header.
### Returns:
str: A formatted string representing the script's metadata and initialization details.
Returns an empty string if `verbose` is False.
### The header includes:
- DSCRIPT version, license, and contact email, if provided.
- The name of the script.
- Filepath, if provided.
- Information on where and when the script was generated.
### Notes:
- If `verbosity` is specified, it overrides `verbose`.
- Omits metadata lines if `version`, `license`, or `email` are not provided.
"""
# Resolve verbosity
verbose = verbosity > 0 if verbosity is not None else verbose
if not verbose:
return ""
# Validate inputs
if name is None:
name = "Unnamed"
# Prepare metadata line
metadata = []
if version:
metadata.append(f"v{version}")
if license:
metadata.append(f"License: {license}")
if email:
metadata.append(f"Email: {email}")
metadata_line = " | ".join(metadata)
# Prepare the framed header content
lines = []
if metadata_line:
lines.append(f"PIZZA.DSCRIPT FILE {metadata_line}")
lines += [
"",
f"Name: {name}",
]
# Add the filepath line if filepath is not None
if filepath:
lines.append(f"Path: {filepath}")
lines += [
"",
f"Generated on: {getpass.getuser()}@{socket.gethostname()}:{os.getcwd()}",
f"{datetime.datetime.now().strftime('%A, %B %d, %Y at %H:%M:%S')}",
]
# Use the shared frame_header function to format the framed content
return frame_header(lines, style=style)
# Generator -- added on 2024-10-17
# -----------
def generator(self):
"""
Returns
-------
STR
generated code corresponding to dscript (using dscript syntax/language).
"""
return self.save(generatoronly=True)
# Save Method -- added on 2024-09-04
# -----------
def save(self, filename=None, foldername=None, overwrite=False, generatoronly=False, onlyusedvariables=True):
"""
Save the current script instance to a text file.
Parameters
----------
filename : str, optional
The name of the file to save the script to. If not provided, `self.name` is used.
The extension ".txt" is automatically appended if not included.
foldername : str, optional
The directory where the file will be saved. If not provided, it defaults to the system's
temporary directory. If the filename does not include a full path, this folder will be used.
overwrite : bool, default=True
Whether to overwrite the file if it already exists. If set to False, an exception is raised
if the file exists.
generatoronly : bool, default=False
If True, the method returns the generated content string without saving to a file.
onlyusedvariables : bool, default=True
If True, local definitions are only saved if they are used within the template content.
If False, all local definitions are saved, regardless of whether they are referenced in
the template.
Raises
------
FileExistsError
If the file already exists and `overwrite` is set to False.
Notes
-----
- The script is saved in a plain text format, and each section (global parameters, definitions,
template, and attributes) is written in a structured format with appropriate comments.
- If `self.name` is used as the filename, it must be a valid string that can serve as a file name.
- The file structure follows the format:
# DSCRIPT SAVE FILE
# generated on YYYY-MM-DD on user@hostname
# GLOBAL PARAMETERS
{ ... }
# DEFINITIONS (number of definitions=...)
key=value
# TEMPLATES (number of items=...)
key: template_content
# ATTRIBUTES (number of items with explicit attributes=...)
key:{attr1=value1, attr2=value2, ...}
"""
# At the beginning of the save method
start_time = time.time() # Start the timer
if not generatoronly:
# Use self.name if filename is not provided
if filename is None:
filename = span(self.name, sep="\n")
# Ensure the filename ends with '.txt'
if not filename.endswith('.txt'):
filename += '.txt'
# Construct the full path
if foldername in [None, ""]: # Handle cases where foldername is None or an empty string
filepath = os.path.abspath(filename)
else:
filepath = os.path.join(foldername, filename)
# Check if the file already exists, and raise an exception if it does and overwrite is False
if os.path.exists(filepath) and not overwrite:
raise FileExistsError(f"The file '{filepath}' already exists.")
# Header with current date, username, and host
header = "# DSCRIPT SAVE FILE\n"
header += "\n"*2
if generatoronly:
header += dscript.header(verbose=True,filepath='dynamic code generation (no file)',
name = self.name, version=self.version, license=self.license, email=self.email)
else:
header += dscript.header(verbose=True,filepath=filepath,
name = self.name, version=self.version, license=self.license, email=self.email)
header += "\n"*2
# Global parameters in strict Python syntax
global_params = "# GLOBAL PARAMETERS (8 parameters)\n"
global_params += "{\n"
global_params += f" SECTIONS = {self.SECTIONS},\n"
global_params += f" section = {self.section},\n"
global_params += f" position = {self.position},\n"
global_params += f" role = {self.role!r},\n"
global_params += f" description = {self.description!r},\n"
global_params += f" userid = {self.userid!r},\n"
global_params += f" version = {self.version},\n"
global_params += f" verbose = {self.verbose}\n"
global_params += "}\n"
# Initialize definitions with self.DEFINITIONS
allvars = self.DEFINITIONS
# Temporary dictionary to track global variable information
global_var_info = {}
# Loop over each template item to detect and record variable usage and overrides
for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()):
# Detect variables used in this template
used_variables = script_template.detect_variables()
# Loop over each template item to detect and record variable usage and overrides
for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()):
# Detect variables used in this template
used_variables = script_template.detect_variables()
# Check each variable used in this template
for var in used_variables:
# Get global and local values for the variable
global_value = getattr(allvars, var, None)
local_value = getattr(script_template.definitions, var, None)
is_global = var in allvars # Check if the variable originates in global space
is_default = is_global and (
global_value is None or global_value == "" or global_value == f"${{{var}}}"
)
# If the variable is not yet tracked, initialize its info
if var not in global_var_info:
global_var_info[var] = {
"value": global_value, # Initial value from allvars if exists
"updatedvalue": global_value,# Initial value from allvars if exists
"is_default": is_default, # Check if it’s set to a default value
"first_def": None, # First definition (to be updated later)
"first_use": template_index, # First time the variable is used
"first_val": global_value,
"override_index": template_index if local_value is not None else None, # Set override if defined locally
"is_global": is_global # Track if the variable originates as global
}
else:
# Update `override_index` if the variable is defined locally and its value changes
if local_value is not None:
# Check if the local value differs from the tracked value in global_var_info
current_value = global_var_info[var]["value"]
if current_value != local_value:
global_var_info[var]["override_index"] = template_index
global_var_info[var]["updatedvalue"] = local_value # Update the tracked value
# Second loop: Update `first_def` for all variables
for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()):
local_definitions = script_template.definitions.keys()
for var in local_definitions:
if var in global_var_info and global_var_info[var]["first_def"] is None:
global_var_info[var]["first_def"] = template_index
global_var_info[var]["first_val"] = getattr(script_template.definitions, var)
# Filter global definitions based on usage, overrides, and first_def
filtered_globals = {
var: info for var, info in global_var_info.items()
if (info["is_global"] or info["is_default"]) and (info["override_index"] is None)
}
# Generate the definitions output based on filtered globals
definitions = f"\n# GLOBAL DEFINITIONS (number of definitions={len(filtered_globals)})\n"
for var, info in filtered_globals.items():
if info["is_default"] and (info["first_def"]>info["first_use"] if info["first_def"] else True):
definitions += f"{var} = ${{{var}}} # value assumed to be defined outside this DSCRIPT file\n"
else:
value = info["first_val"] #info["value"]
if value in ["", None]:
definitions += f'{var} = ""\n'
elif isinstance(value, str):
safe_value = value.replace('\\', '\\\\').replace('\n', '\\n')
definitions += f"{var} = {safe_value}\n"
else:
definitions += f"{var} = {value}\n"
# Template (number of lines/items)
printsinglecontent = False
template = f"\n# TEMPLATES (number of items={len(self.TEMPLATE)})\n"
for key, script_template in self.TEMPLATE.items():
# Get local template definitions and detected variables
template_vars = script_template.definitions
used_variables = script_template.detect_variables()
islocal = False
# Temporary dictionary to accumulate variables to add to allvars
valid_local_vars = lambdaScriptdata()
# Write template-specific definitions only if they meet the updated conditions
for var in template_vars.keys():
# Conditions for adding a variable to the local template and to `allvars`
if (var in used_variables or not onlyusedvariables) and (
script_template.is_variable_set_value_only(var) and
(var not in allvars or getattr(template_vars, var) != getattr(allvars, var))
):
# Start local definitions section if this is the first local variable for the template
if not islocal:
template += f"\n# LOCAL DEFINITIONS for key '{key}'\n"
islocal = True
# Retrieve and process the variable value
value = getattr(template_vars, var)
if value in ["", None]:
template += f'{var} = ""\n' # Set empty or None values as ""
elif isinstance(value, str):
safe_value = value.replace('\\', '\\\\').replace('\n', '\\n')
template += f"{var} = {safe_value}\n"
else:
template += f"{var} = {value}\n"
# Add the variable to valid_local_vars for selective update of allvars
valid_local_vars.setattr(var, value)
# Update allvars only with filtered, valid local variables
allvars += valid_local_vars
# Write the template content
if isinstance(script_template.content, list):
if len(script_template.content) == 1:
# Single-line template saved as a single line
content_str = script_template.content[0].strip()
template += "" if printsinglecontent else "\n"
template += f"{key}: {content_str}\n"
printsinglecontent = True
else:
content_str = '\n '.join(script_template.content)
template += f"\n{key}: [\n {content_str}\n ]\n"
printsinglecontent = False
else:
template += "" if printsinglecontent else "\n"
template += f"{key}: {script_template.content}\n"
printsinglecontent = True
# Attributes (number of lines/items with explicit attributes)
attributes = f"# ATTRIBUTES (number of items with explicit attributes={len(self.TEMPLATE)})\n"
for key, script_template in self.TEMPLATE.items():
attr_str = ", ".join(f"{attr_name}={repr(attr_value)}"
for attr_name, attr_value in script_template.attributes.items())
attributes += f"{key}:{{{attr_str}}}\n"
# Combine all sections into one content
content = header + "\n" + global_params + "\n" + definitions + "\n" + template + "\n" + attributes + "\n"
# Append footer information to the content
non_empty_lines = sum(1 for line in content.splitlines() if line.strip()) # Count non-empty lines
execution_time = time.time() - start_time # Calculate the execution time in seconds
# Prepare the footer content
footer_lines = [
["Non-empty lines", str(non_empty_lines)],
["Execution time (seconds)", f"{execution_time:.4f}"],
]
# Format footer into tabular style
footer_content = [
f"{row[0]:<25} {row[1]:<15}" for row in footer_lines
]
# Use frame_header to format footer
footer = frame_header(
lines=["DSCRIPT SAVE FILE generator"] + footer_content,
style=1
)
# Append footer to the content
content += f"\n{footer}"
if generatoronly:
return content
else:
# Write the content to the file
with open(filepath, 'w') as f:
f.write(content)
print(f"\nScript saved to {filepath}")
return filepath
# Write Method -- added on 2024-09-05
# ------------
@staticmethod
@staticmethod
def write(scriptcontent, filename=None, foldername=None, overwrite=False):
"""
Writes the provided script content to a specified file in a given folder, with a header if necessary.
Parameters
----------
scriptcontent : str
The content to be written to the file.
filename : str, optional
The name of the file. If not provided, a random name will be generated.
The extension `.txt` will be appended if not already present.
foldername : str, optional
The folder where the file will be saved. If not provided, the current working directory is used.
overwrite : bool, optional
If False (default), raises a `FileExistsError` if the file already exists. If True, the file will be overwritten if it exists.
Returns
-------
str
The full path to the written file.
Raises
------
FileExistsError
If the file already exists and `overwrite` is set to False.
Notes
-----
- A header is prepended to the content if it does not already exist, using the `header` method.
- The header includes metadata such as the current date, username, hostname, and file details.
"""
# Generate a random name if filename is not provided
if filename is None:
filename = autoname(8) # Generates a random name of 8 letters
# Ensure the filename ends with '.txt'
if not filename.endswith('.txt'):
filename += '.txt'
# Handle foldername and relative paths
if foldername is None or foldername == "":
# If foldername is empty or None, use current working directory for relative paths
if not os.path.isabs(filename):
filepath = os.path.join(os.getcwd(), filename)
else:
filepath = filename # If filename is absolute, use it directly
else:
# If foldername is provided and filename is not absolute, use foldername
if not os.path.isabs(filename):
filepath = os.path.join(foldername, filename)
else:
filepath = filename
# Check if file already exists, raise exception if it does and overwrite is False
if os.path.exists(filepath) and not overwrite:
raise FileExistsError(f"The file '{filepath}' already exists.")
# Count total and non-empty lines in the content
total_lines = len(scriptcontent.splitlines())
non_empty_lines = sum(1 for line in scriptcontent.splitlines() if line.strip())
# Prepare header if not already present
if not scriptcontent.startswith("# DSCRIPT SAVE FILE"):
fname = os.path.basename(filepath) # Extracts the filename (e.g., "myscript.txt")
name, _ = os.path.splitext(fname) # Removes the extension, e.g., "myscript"
metadata = get_metadata() # retrieve all metadata (statically)
header = dscript.header(name=name, verbosity=True,style=1,filepath=filepath,
version = metadata["version"], license = metadata["license"], email = metadata["email"])
# Add line count information to the header
footer = frame_header(
lines=[
f"Total lines written: {total_lines}",
f"Non-empty lines: {non_empty_lines}"
],
style=1
)
scriptcontent = header + "\n" + scriptcontent + "\n" + footer
# Write the content to the file
with open(filepath, 'w') as file:
file.write(scriptcontent)
return filepath
# Load Method and its Parsing Rules -- added on 2024-09-04
# ---------------------------------
@classmethod
def load(cls, filename, foldername=None, numerickeys=True):
"""
Load a script instance from a text file.
Parameters
----------
filename : str
The name of the file to load the script from. If the filename does not end with ".txt",
the extension is automatically appended.
foldername : str, optional
The directory where the file is located. If not provided, it defaults to the system's
temporary directory. If the filename does not include a full path, this folder will be used.
numerickeys : bool, default=True
If True, numeric string keys in the template section are automatically converted into integers.
For example, the key "0" would be converted into the integer 0.
Returns
-------
dscript
A new `dscript` instance populated with the content of the loaded file.
Raises
------
ValueError
If the file does not start with the correct DSCRIPT header or the file format is invalid.
FileNotFoundError
If the specified file does not exist.
Notes
-----
- The file is expected to follow the same structured format as the one produced by the `save()` method.
- The method processes global parameters, definitions, template lines/items, and attributes. If the file
includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers
if `numerickeys=True`.
- The script structure is dynamically rebuilt, and each section (global parameters, definitions,
template, and attributes) is correctly parsed and assigned to the corresponding parts of the `dscript`
instance.
"""
# Step 0 validate filepath
if not filename.endswith('.txt'):
filename += '.txt'
# Handle foldername and relative paths
if foldername is None or foldername == "":
# If the foldername is empty or None, use current working directory for relative paths
if not os.path.isabs(filename):
filepath = os.path.join(os.getcwd(), filename)
else:
filepath = filename # If filename is absolute, use it directly
else:
# If foldername is provided and filename is not absolute, use foldername
if not os.path.isabs(filename):
filepath = os.path.join(foldername, filename)
else:
filepath = filename
if not os.path.exists(filepath):
raise FileExistsError(f"The file '{filepath}' does not exist.")
# Read the file contents
with open(filepath, 'r') as f:
content = f.read()
# Call parsesyntax to parse the file content
fname = os.path.basename(filepath) # Extracts the filename (e.g., "myscript.txt")
name, _ = os.path.splitext(fname) # Removes the extension, e.g., "myscript
return cls.parsesyntax(content, name, numerickeys)
# Load Method and its Parsing Rules -- added on 2024-09-04
# ---------------------------------
@classmethod
def parsesyntax(cls, content, name=None, numerickeys=True, verbose=False, authentification=True,
comment_chars="#%",continuation_marker="..."):
"""
Parse a DSCRIPT script from a string content.
Parameters
----------
content : str
The string content of the DSCRIPT script to be parsed.
name : str, optional
The name of the dscript project. If `None`, a random name is generated.
numerickeys : bool, default=True
If `True`, numeric string keys in the template section are automatically converted into integers.
verbose : bool, default=False
If `True`, the parser will output warnings for unrecognized lines outside of blocks.
authentification : bool, default=True
If `True`, the parser is expected that the first non empty line is # DSCRIPT SAVE FILE
comment_chars : str, optional (default: "#%")
A string containing characters to identify the start of a comment.
Any of these characters will mark the beginning of a comment unless within quotes.
continuation_marker : str, optional (default: "...")
A string containing characters to indicate line continuation
Any characters after the continuation marker are considered comment and are theorefore ignored
Returns
-------
dscript
A new `dscript` instance populated with the content of the loaded file.
Raises
------
ValueError
If content does not start with the correct DSCRIPT header or the file format is invalid.
Notes
-----
**DSCRIPT SAVE FILE FORMAT**
This script syntax is designed for creating dynamic and customizable input files, where variables, templates,
and control attributes can be defined in a flexible manner.
**Mandatory First Line:**
Every DSCRIPT file must begin with the following line:
```plaintext
# DSCRIPT SAVE FILE
```
**Structure Overview:**
1. **Global Parameters Section (Optional):**
- This section defines global script settings, enclosed within curly braces `{}`.
- Properties include:
- `SECTIONS`: List of section names to be considered (e.g., `["DYNAMIC"]`).
- `section`: Current section index (e.g., `0`).
- `position`: Current script position in the order.
- `role`: Defines the role of the script instance (e.g., `"dscript instance"`).
- `description`: A short description of the script (e.g., `"dynamic script"`).
- `userid`: Identifier for the user (e.g., `"dscript"`).
- `version`: Script version (e.g., `0.1`).
- `verbose`: Verbosity flag, typically a boolean (e.g., `False`).
**Example:**
```plaintext
{
SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters
}
```
2. **Definitions Section:**
- Variables are defined in Python-like syntax, allowing for dynamic variable substitution.
- Variables can be numbers, strings, or lists, and they can include placeholders using `$`
to delay execution or substitution.
**Example:**
```plaintext
d = 3 # Define a number
periodic = "$p" # '$' prevents immediate evaluation of 'p'
units = "$metal" # '$' prevents immediate evaluation of 'metal'
dimension = "${d}" # Variable substitution
boundary = ['p', 'p', 'p'] # List with a mix of variables and values
atom_style = "$atomic" # String variable with delayed evaluation
```
3. **Templates Section:**
- This section provides a mapping between keys and their corresponding commands or instructions.
- Each template can reference variables defined in the **Definitions** section or elsewhere, typically using the `${variable}` syntax.
- **Syntax Variations**:
Templates can be defined in several ways, including without blocks, with single- or multi-line blocks, and with ellipsis (`...`) as a line continuation marker.
- **Single-line Template Without Block**:
```plaintext
KEY: INSTRUCTION
```
- `KEY` is the identifier for the template (numeric or alphanumeric).
- `INSTRUCTION` is the command or template text, which may reference variables.
- **Single-line Template With Block**:
```plaintext
KEY: [INSTRUCTION]
```
- Uses square brackets (`[ ]`) around the `INSTRUCTION`, indicating that all instructions are part of the block.
- **Multi-line Template With Block**:
```plaintext
KEY: [
INSTRUCTION1
INSTRUCTION2
...
]
```
- Begins with `KEY: [` and ends with a standalone `]` on a new line.
- Instructions within the block can span multiple lines, and ellipses (`...`) at the end of a line are used to indicate that the line continues, ignoring any content following the ellipsis as comments.
- Comments following ellipses are removed after parsing and do not become part of the block, preserving only the instructions.
- **Multi-line Template With Continuation Marker (Ellipsis)**:
- For templates with complex code containing square brackets (`[ ]`), the ellipsis (`...`) can be used to prevent `]` from prematurely closing the block. The ellipsis will keep the line open across multiple lines, allowing brackets in the instructions.
**Example:**
```plaintext
example1: command ${value} # Single-line template without block
example2: [command ${value}] # Single-line template with block
# Multi-line template with block
example3: [
command1 ${var1}
command2 ${var2} ... # Line continues after ellipsis
command3 ${var3} ... # Additional instruction continues
]
# Multi-line template with ellipsis (handling square brackets)
example4: [
A[0][1] ... # Ellipsis allows [ ] within instructions
B[2][3] ... # Another instruction in the block
]
```
- **Key Points**:
- **Blocks** allow grouping of multiple instructions for a single key, enclosed in square brackets.
- **Ellipsis (`...`)** at the end of a line keeps the line open, preventing premature closing by `]`, especially useful if the template code includes square brackets (`[ ]`).
- **Comments** placed after the ellipsis are removed after parsing and are not part of the final block content.
This flexibility supports both simple and complex template structures, allowing instructions to be grouped logically while keeping code and comments distinct.
4. **Attributes Section:**
- Each template line can have customizable attributes to control behavior and conditions.
- Default attributes include:
- `facultative`: If `True`, the line is optional and can be removed if needed.
- `eval`: If `True`, the line will be evaluated with Python's `eval()` function.
- `readonly`: If `True`, the line cannot be modified later in the script.
- `condition`: An expression that must be satisfied for the line to be included.
- `condeval`: If `True`, the condition will be evaluated using `eval()`.
- `detectvar`: If `True`, this creates variables in the **Definitions** section if they do not exist.
**Example:**
```plaintext
units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True}
dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
```
**Note on Multiple Definitions**
This example demonstrates how variables defined in the **Definitions** section are handled for each template.
Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates
can use different values for the same variable if redefined.
**Example:**
```plaintext
# DSCRIPT SAVE FILE
# Definitions
var = 10
# Template key1
key1: Template content with ${var}
# Definitions
var = 20
# Template key2
key2: Template content with ${var}
# Template key3
key3:[
this is an undefined variable ${var31}
this is another undefined variable ${var32}
this variable is defined ${var}
]
```
**Parsing and Usage:**
```python
# Parse content using parsesyntax()
ds = dscript.parsesyntax(content)
# Accessing templates and their variables
print(ds.TEMPLATE['key1'].text) # Output: Template content with 10
print(ds.TEMPLATE['key2'].text) # Output: Template content with 20
```
**Handling Undefined Variables:**
Variables like `${var31}` and `${var32}` in `key3` are undefined. The parser will handle them based on your substitution logic or raise an error if they are required.
**Important Notes:**
- The parser processes the script sequentially. Definitions must appear before the templates that use them.
- Templates capture the variable definitions at the time they are parsed. Redefining a variable affects only subsequent templates.
- Comments outside of blocks are allowed and ignored by the parser.
- Content within templates is treated as-is, allowing for any syntax required by the target system (e.g., LAMMPS commands).
**Advanced Example**
Here's a more advanced example demonstrating the use of global definitions, local definitions, templates, and how to parse and render the template content.
```python
content = '''
# GLOBAL DEFINITIONS
dumpfile = $dump.LAMMPS
dumpdt = 50
thermodt = 100
runtime = 5000
# LOCAL DEFINITIONS for step '0'
dimension = 3
units = $si
boundary = ['f', 'f', 'f']
atom_style = $smd
atom_modify = ['map', 'array']
comm_modify = ['vel', 'yes']
neigh_modify = ['every', 10, 'delay', 0, 'check', 'yes']
newton = $off
name = $SimulationBox
# This is a comment line outside of blocks
# ------------------------------------------
0: [ % --------------[ Initialization Header (helper) for "${name}" ]--------------
# set a parameter to None or "" to remove the definition
dimension ${dimension}
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
# ------------------------------------------
]
'''
# Parse the content
ds = dscript.parsesyntax(content, verbose=True, authentification=False)
# Access and print the rendered template
print("Template 0 content:")
print(ds.TEMPLATE[0].do())
```
**Explanation:**
- **Global Definitions:** Define variables that are accessible throughout the script.
- **Local Definitions for Step '0':** Define variables specific to a particular step or template.
- **Template Block:** Identified by `0: [ ... ]`, it contains the content where variables will be substituted.
- **Comments:** Lines starting with `#` are comments and are ignored by the parser outside of template blocks.
**Expected Output:**
```
Template 0 content:
# --------------[ Initialization Header (helper) for "SimulationBox" ]--------------
# set a parameter to None or "" to remove the definition
dimension 3
units si
boundary ['f', 'f', 'f']
atom_style smd
atom_modify ['map', 'array']
comm_modify ['vel', 'yes']
neigh_modify ['every', 10, 'delay', 0, 'check', 'yes']
newton off
# ------------------------------------------
```
**Notes:**
- The `do()` method renders the template, substituting variables with their defined values.
- Variables like `${dimension}` are replaced with their corresponding values defined in the local or global definitions.
- The parser handles comments and blank lines appropriately, ensuring they don't interfere with the parsing logic.
"""
# Split the content into lines
lines = content.splitlines()
if not lines:
raise ValueError("File/Content is empty or only contains blank lines.")
# Initialize containers
global_params = {}
GLOBALdefinitions = lambdaScriptdata()
LOCALdefinitions = lambdaScriptdata()
template = {}
attributes = {}
# State variables
inside_global_params = False
global_params_content = ""
inside_template_block = False
current_template_key = None
current_template_content = []
current_var_value = lambdaScriptdata()
# Initialize line number
line_number = 0
last_successful_line = 0
# Step 1: Authenticate the file
if authentification:
auth_line_found = False
max_header_lines = 10
header_end_idx = -1
for idx, line in enumerate(lines[:max_header_lines]):
stripped_line = line.strip()
if not stripped_line:
continue
if stripped_line.startswith("# DSCRIPT SAVE FILE"):
auth_line_found = True
header_end_idx = idx
break
elif stripped_line.startswith("#") or stripped_line.startswith("%"):
continue
else:
raise ValueError(f"Unexpected content before authentication line (# DSCRIPT SAVE FILE) at line {idx + 1}:\n{line}")
if not auth_line_found:
raise ValueError("File/Content is not a valid DSCRIPT file.")
# Remove header lines
lines = lines[header_end_idx + 1:]
line_number = header_end_idx + 1
last_successful_line = line_number - 1
else:
line_number = 0
last_successful_line = 0
# Process each line
for idx, line in enumerate(lines):
line_number += 1
line_content = line.rstrip('\n')
# Determine if we're inside a template block
if inside_template_block:
# Extract the code with its eventual continuation_marker
code_line = remove_comments(
line_content,
comment_chars=comment_chars,
continuation_marker=continuation_marker,
remove_continuation_marker=False,
).rstrip()
# Check if line should continue
if code_line.endswith(continuation_marker):
# Append line up to the continuation marker
endofline_index = line_content.rindex(continuation_marker)
trimmed_content = line_content[:endofline_index].rstrip()
if trimmed_content:
current_template_content.append(trimmed_content)
continue
elif code_line.endswith("]"): # End of multi-line block
closing_index = code_line.rindex(']')
trimmed_content = code_line[:closing_index].rstrip()
# Append any valid content before `]`, if non-empty
if trimmed_content:
current_template_content.append(trimmed_content)
# End of template block
content = '\n'.join(current_template_content)
template[current_template_key] = ScriptTemplate(
content=content,
autorefresh=False,
definitions=LOCALdefinitions,
verbose=verbose,
userid=current_template_key)
# Refresh variables definitions
template[current_template_key].refreshvar(globaldefinitions=GLOBALdefinitions)
LOCALdefinitions = lambdaScriptdata()
# Reset state for next block
inside_template_block = False
current_template_key = None
current_template_content = []
last_successful_line = line_number
continue
else:
# Append the entire original line content if not ending with `...` or `]`
current_template_content.append(line_content)
continue
# Not inside a template block
stripped_no_comments = remove_comments(line_content)
# Ignore empty lines after removing comments
if not stripped_no_comments.strip():
continue
# If the original line is a comment line, skip it
if line_content.strip().startswith("#") or line_content.strip().startswith("%"):
continue
stripped = stripped_no_comments.strip()
# Handle start of a new template block
template_block_match = re.match(r'^(\w+)\s*:\s*\[', stripped)
if template_block_match:
current_template_key = template_block_match.group(1)
if inside_template_block:
# Collect error context
context_start = max(0, last_successful_line - 3)
context_end = min(len(lines), line_number + 2)
error_context_lines = lines[context_start:context_end]
error_context = ""
for i, error_line in enumerate(error_context_lines):
line_num = context_start + i + 1
indicator = ">" if line_num == line_number else "*" if line_num == last_successful_line else " "
error_context += f"{indicator} {line_num}: {error_line}\n"
raise ValueError(
f"Template block '{current_template_key}' starting at line {last_successful_line} (*) was not properly closed before starting a new one at line {line_number} (>).\n\n"
f"Error context:\n{error_context}"
)
else:
inside_template_block = True
idx_open_bracket = line_content.index('[')
remainder = line_content[idx_open_bracket + 1:].strip()
if remainder:
remainder_code = remove_comments(remainder, comment_chars=comment_chars).rstrip()
if remainder_code.endswith("]"):
closing_index = remainder_code.rindex(']')
content_line = remainder_code[:closing_index].strip()
if content_line:
current_template_content.append(content_line)
content = '\n'.join(current_template_content)
template[current_template_key] = ScriptTemplate(
content=content,
autorefresh=False,
definitions=LOCALdefinitions,
verbose=verbose,
userid=current_template_key)
template[current_template_key].refreshvar(globaldefinitions=GLOBALdefinitions)
LOCALdefinitions = lambdaScriptdata()
inside_template_block = False
current_template_key = None
current_template_content = []
last_successful_line = line_number
continue
else:
current_template_content.append(remainder)
last_successful_line = line_number
continue
# Handle start of global parameters
if stripped.startswith('{') and not inside_global_params:
if '}' in stripped:
global_params_content = stripped
cls._parse_global_params(global_params_content.strip(), global_params)
global_params_content = ""
last_successful_line = line_number
else:
inside_global_params = True
global_params_content = stripped
continue
# Handle global parameters inside {...}
if inside_global_params:
global_params_content += ' ' + stripped
if '}' in stripped:
inside_global_params = False
cls._parse_global_params(global_params_content.strip(), global_params)
global_params_content = ""
last_successful_line = line_number
continue
# Handle attributes
attribute_match = re.match(r'^(\w+)\s*:\s*\{(.+)\}', stripped)
if attribute_match:
key, attr_content = attribute_match.groups()
attributes[key] = {}
cls._parse_attributes(attributes[key], attr_content.strip())
last_successful_line = line_number
continue
# Handle definitions
definition_match = re.match(r'^(\w+)\s*=\s*(.+)', stripped)
if definition_match:
key, value = definition_match.groups()
convertedvalue = cls._convert_value(value)
if key in GLOBALdefinitions:
if (GLOBALdefinitions.getattr(key) != convertedvalue) or \
(getattr(current_var_value, key) != convertedvalue):
LOCALdefinitions.setattr(key, convertedvalue)
else:
GLOBALdefinitions.setattr(key, convertedvalue)
last_successful_line = line_number
setattr(current_var_value, key, convertedvalue)
continue
# Handle single-line templates
template_match = re.match(r'^(\w+)\s*:\s*(.+)', stripped)
if template_match:
key, content = template_match.groups()
template[key] = ScriptTemplate(
content = content.strip(),
autorefresh = False,
definitions=LOCALdefinitions,
verbose=verbose,
userid=key)
template[key].refreshvar(globaldefinitions=GLOBALdefinitions)
LOCALdefinitions = lambdaScriptdata()
last_successful_line = line_number
continue
# Unrecognized line
if verbose:
print(f"Warning: Unrecognized line at {line_number}: {line_content}")
last_successful_line = line_number
continue
# At the end, check if any template block was left unclosed
if inside_template_block:
# Collect error context
context_start = max(0, last_successful_line - 3)
context_end = min(len(lines), last_successful_line + 3)
error_context_lines = lines[context_start:context_end]
error_context = ""
for i, error_line in enumerate(error_context_lines):
line_num = context_start + i
indicator = ">" if line_num == last_successful_line else " "
error_context += f"{indicator} {line_num}: {error_line}\n"
raise ValueError(
f"Template block '{current_template_key}' starting at line {last_successful_line} was not properly closed.\n\n"
f"Error context:\n{error_context}"
)
# Apply attributes to templates
for key in attributes:
if key in template:
for attr_name, attr_value in attributes[key].items():
setattr(template[key], attr_name, attr_value)
template[key]._autorefresh = True # restore the default behavior for the end-user
else:
raise ValueError(f"Attributes found for undefined template key: {key}")
# Create and return new instance
if name is None:
name = autoname(8)
instance = cls(
name=name,
SECTIONS=global_params.get('SECTIONS', ['DYNAMIC']),
section=global_params.get('section', 0),
position=global_params.get('position', 0),
role=global_params.get('role', 'dscript instance'),
description=global_params.get('description', 'dynamic script'),
userid=global_params.get('userid', 'dscript'),
version=global_params.get('version', 0.1),
verbose=global_params.get('verbose', False)
)
# Convert numeric string keys to integers if numerickeys is True
if numerickeys:
numeric_template = {}
for key, value in template.items():
if key.isdigit():
numeric_template[int(key)] = value
else:
numeric_template[key] = value
template = numeric_template
# Set definitions and template
instance.DEFINITIONS = GLOBALdefinitions
instance.TEMPLATE = template
# Refresh variables
instance.set_all_variables()
# Check variables
instance.check_all_variables(verbose=False)
return instance
@classmethod
def parsesyntax_legacy(cls, content, name=None, numerickeys=True):
"""
Parse a script from a string content.
[ ------------------------------------------------------]
[ Legacy parsesyntax method for backward compatibility. ]
[ ------------------------------------------------------]
Parameters
----------
content : str
The string content of the script to be parsed.
name : str
The name of the dscript project (if None, it is set randomly)
numerickeys : bool, default=True
If True, numeric string keys in the template section are automatically converted into integers.
Returns
-------
dscript
A new `dscript` instance populated with the content of the loaded file.
Raises
------
ValueError
If content does not start with the correct DSCRIPT header or the file format is invalid.
Notes
-----
- The file is expected to follow the same structured format as the one produced by the `save()` method.
- The method processes global parameters, definitions, template lines/items, and attributes. If the file
includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers
if `numerickeys=True`.
- The script structure is dynamically rebuilt, and each section (global parameters, definitions,
template, and attributes) is correctly parsed and assigned to the corresponding parts of the `dscript`
instance.
PIZZA.DSCRIPT SAVE FILE FORMAT
-------------------------------
This script syntax is designed for creating dynamic and customizable input files, where variables, templates,
and control attributes can be defined in a flexible manner.
### Mandatory First Line:
Every DSCRIPT file must begin with the following line:
# DSCRIPT SAVE FILE
### Structure Overview:
1. **Global Parameters Section (Optional):**
- This section defines global script settings, enclosed within curly braces `{ }`.
- Properties include:
- `SECTIONS`: List of section names to be considered (e.g., `["DYNAMIC"]`).
- `section`: Current section index (e.g., `0`).
- `position`: Current script position in the order.
- `role`: Defines the role of the script instance (e.g., `"dscript instance"`).
- `description`: A short description of the script (e.g., `"dynamic script"`).
- `userid`: Identifier for the user (e.g., `"dscript"`).
- `version`: Script version (e.g., `0.1`).
- `verbose`: Verbosity flag, typically a boolean (e.g., `False`).
Example:
```
{
SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters
}
```
2. **Definitions Section:**
- Variables are defined in Python-like syntax, allowing for dynamic variable substitution.
- Variables can be numbers, strings, or lists, and they can include placeholders using `$`
to delay execution or substitution.
Example:
```
d = 3 # Define a number
periodic = "$p" # '$' prevents immediate evaluation of 'p'
units = "$metal" # '$' prevents immediate evaluation of 'metal'
dimension = "${d}" # Variable substitution
boundary = ['p', 'p', 'p'] # List with a mix of variables and values
atom_style = "$atomic" # String variable with delayed evaluation
```
3. **Templates Section:**
- This section provides a mapping between keys and their corresponding commands or instructions.
- The templates reference variables defined in the **Definitions** section or elsewhere.
- Syntax:
```
KEY: INSTRUCTION
```
where:
- `KEY` can be numeric or alphanumeric.
- `INSTRUCTION` represents a command template, often referring to variables using `${variable}` notation.
Example:
```
units: units ${units} # Template uses the 'units' variable
dim: dimension ${dimension} # Template for setting the dimension
bound: boundary ${boundary} # Template for boundary settings
lattice: lattice ${lattice} # Lattice template
```
4. **Attributes Section:**
- Each template line can have customizable attributes to control behavior and conditions.
- Default attributes include:
- `facultative`: If `True`, the line is optional and can be removed if needed.
- `eval`: If `True`, the line will be evaluated with Python's `eval()` function.
- `readonly`: If `True`, the line cannot be modified later in the script.
- `condition`: An expression that must be satisfied for the line to be included.
- `condeval`: If `True`, the condition will be evaluated using `eval()`.
- `detectvar`: If `True`, this creates variables in the **Definitions** section if they do not exist.
Example:
```
units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True}
dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
```
Note on multiple definitions
-----------------------------
This example demonstrates how variables defined in the `Definitions` section are handled for each template.
Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates
can use different values for the same variable if redefined.
content = "" "
# DSCRIPT SAVE FILE
# Definitions
var = 10
# Template ky1
key1: Template content with ${var}
# Definitions
var = 20
# Template key2
key2: Template content with ${var}
# Template key3
key3:[
this is an underfined variable ${var31}
this is an another underfined variable ${var32}
this variables is defined ${var}
]
"" "
# Parse content using parsesyntax()
ds = dscript.parsesyntax(content)
# Key1 should use the first definition of 'var' (10)
print(ds.key1.definitions.var) # Output: Template content with 10
# Key2 should use the updated definition of 'var' (20)
print(ds.key2.definitions.var) # Output: Template content with 10
"""
# Split the content into lines
lines = content.splitlines()
lines = [line for line in lines if line.strip()] # Remove blank or empty lines
# Raise an error if no content is left after removing blank lines
if not lines:
raise ValueError("File/Content is empty or only contains blank lines.")
# Initialize containers for global parameters, definitions, templates, and attributes
global_params = {}
definitions = lambdaScriptdata()
template = {}
attributes = {}
# State variables to handle multi-line global parameters and attributes
inside_global_params = False
inside_attributes = False
current_attr_key = None # Ensure this is properly initialized
global_params_content = ""
inside_template_block = False # Track if we are inside a multi-line template
current_template_key = None # Track the current template key
current_template_content = [] # Store lines for the current template content
# Step 1: Authenticate the file
if not lines[0].strip().startswith("# DSCRIPT SAVE FILE"):
raise ValueError("File/Content is not a valid DSCRIPT file.")
# Step 2: Process each line dynamically
for line in lines[1:]:
stripped = line.strip()
# Ignore empty lines and comments
if not stripped or stripped.startswith("#"):
continue
# Remove trailing comments
stripped = remove_comments(stripped)
# Step 3: Handle global parameters inside {...}
if stripped.startswith("{"):
# Found the opening {, start accumulating global parameters
inside_global_params = True
# Remove the opening { and accumulate the remaining content
global_params_content = stripped[stripped.index('{') + 1:].strip()
# Check if the closing } is also on the same line
if '}' in global_params_content:
global_params_content = global_params_content[:global_params_content.index('}')].strip()
inside_global_params = False # We found the closing } on the same line
# Now parse the global parameters block
cls._parse_global_params(global_params_content.strip(), global_params)
global_params_content = "" # Reset for the next block
continue
if inside_global_params:
# Accumulate content until the closing } is found
if stripped.endswith("}"):
# Found the closing }, accumulate and process the entire block
global_params_content += " " + stripped[:stripped.index('}')].strip()
inside_global_params = False # Finished reading global parameters block
# Now parse the entire global parameters block
cls._parse_global_params(global_params_content.strip(), global_params)
global_params_content = "" # Reset for the next block if necessary
else:
# Continue accumulating if } is not found
global_params_content += " " + stripped
continue
# Step 4: Detect the start of a multi-line template block inside [...]
if not inside_template_block:
template_match = re.match(r'(\w+)\s*:\s*\[', stripped)
if template_match:
current_template_key = template_match.group(1) # Capture the key
inside_template_block = True
current_template_content = [] # Reset content list
continue
# If inside a template block, accumulate lines until we find the closing ]
if inside_template_block:
if stripped == "]":
# End of the template block, join the content and store it
template[current_template_key] = ScriptTemplate(
current_template_content,
definitions=lambdaScriptdata(**definitions), # Clone current global definitions
verbose=True,
userid=current_template_key
)
template[current_template_key].refreshvar()
inside_template_block = False
current_template_key = None
current_template_content = []
else:
# Accumulate the current line (without surrounding spaces)
current_template_content.append(stripped)
continue
# Step 5: Handle attributes inside {...}
if inside_attributes and stripped.endswith("}"):
# Finish processing attributes for the current key
cls._parse_attributes(attributes[current_attr_key], stripped[:-1]) # Remove trailing }
inside_attributes = False
current_attr_key = None
continue
if inside_attributes:
# Continue accumulating attributes
cls._parse_attributes(attributes[current_attr_key], stripped)
continue
# Step 6: Determine if the line is a definition, template, or attribute
definition_match = re.match(r'(\w+)\s*=\s*(.+)', stripped)
template_match = re.match(r'(\w+)\s*:\s*(?!\s*\{.*\}\s*$)(.+)', stripped) # template_match = re.match(r'(\w+)\s*:\s*(?!\{)(.+)', stripped)
attribute_match = re.match(r'(\w+)\s*:\s*\{\s*(.+)\s*\}', stripped) # attribute_match = re.match(r'(\w+)\s*:\s*\{(.+)\}', stripped)
if definition_match:
# Line is a definition (key=value)
key, value = definition_match.groups()
definitions.setattr(key,cls._convert_value(value))
elif template_match and not inside_template_block:
# Line is a template (key: content)
key, content = template_match.groups()
template[key] = ScriptTemplate(
content,
definitions=lambdaScriptdata(**definitions), # Clone current definitions
verbose=True,
userid=current_template_key)
template[key].refreshvar()
elif attribute_match:
# Line is an attribute (key:{attributes...})
current_attr_key, attr_content = attribute_match.groups()
attributes[current_attr_key] = {}
cls._parse_attributes(attributes[current_attr_key], attr_content)
inside_attributes = not stripped.endswith("}")
# Step 7: Validation and Reconstruction
# Make sure there are no attributes without a template entry
for key in attributes:
if key not in template:
raise ValueError(f"Attributes found for undefined template key: {key}")
# Apply attributes to the corresponding template object
for attr_name, attr_value in attributes[key].items():
setattr(template[key], attr_name, attr_value)
# Step 7: Create and return a new dscript instance
if name is None:
name = autoname(8)
instance = cls(
name = name,
SECTIONS=global_params.get('SECTIONS', ['DYNAMIC']),
section=global_params.get('section', 0),
position=global_params.get('position', 0),
role=global_params.get('role', 'dscript instance'),
description=global_params.get('description', 'dynamic script'),
userid=global_params.get('userid', 'dscript'),
version=global_params.get('version', 0.1),
verbose=global_params.get('verbose', False)
)
# Convert numeric string keys to integers if numerickeys is True
if numerickeys:
numeric_template = {}
for key, value in template.items():
# Check if the key is a numeric string
if key.isdigit():
numeric_template[int(key)] = value
else:
numeric_template[key] = value
template = numeric_template
# Set definitions and template
instance.DEFINITIONS = definitions
instance.TEMPLATE = template
# Refresh variables (ensure that variables are detected and added to definitions)
instance.set_all_variables()
# Check eval
instance.check_all_variables(verbose=False)
# return the new instance
return instance
@classmethod
def _parse_global_params(cls, content, global_params):
"""
Parses global parameters from the accumulated content enclosed in `{}`.
### Parameters:
content (str): The content string containing global parameters.
global_params (dict): A dictionary to populate with parsed parameters.
### Raises:
ValueError: If invalid lines or key-value pairs are encountered.
"""
# Remove braces from the content
content = content.strip().strip("{}")
# Split the content into lines by commas
lines = re.split(r',(?![^(){}\[\]]*[\)\}\]])', content.strip())
for line in lines:
line = line.strip()
# Match key-value pairs
match = re.match(r'([\w_]+)\s*=\s*(.+)', line)
if match:
key, value = match.groups()
key = key.strip()
value = value.strip()
# Convert the value to the appropriate Python type and store it
global_params[key] = cls._convert_value(value)
else:
raise ValueError(f"Invalid parameter line: '{line}'")
@classmethod
def _parse_attributes(cls, attr_dict, content):
"""Parses attributes from the content inside {attribute=value,...}."""
attr_pairs = re.findall(r'(\w+)\s*=\s*([^,]+)', content)
for attr_name, attr_value in attr_pairs:
attr_dict[attr_name] = cls._convert_value(attr_value)
@classmethod
def _convert_value(cls, value):
"""Converts a string representation of a value to the appropriate Python type."""
value = value.strip()
# Boolean and None conversion
if value.lower() == 'true':
return True
elif value.lower() == 'false':
return False
elif value.lower() == 'none':
return None
# Handle quoted strings
if (value.startswith('"') and value.endswith('"')) or (value.startswith("'") and value.endswith("'")):
return value[1:-1]
# Handle lists (Python syntax inside the file)
if value.startswith('[') and value.endswith(']'):
return eval(value) # Using eval to parse lists safely in this controlled scenario
# Handle numbers
try:
if '.' in value:
return float(value)
return int(value)
except ValueError:
# Return the value as-is if it doesn't match other types
return value
def __copy__(self):
""" copy method """
cls = self.__class__
copie = cls.__new__(cls)
copie.__dict__.update(self.__dict__)
return copie
def __deepcopy__(self, memo):
""" deep copy method """
cls = self.__class__
copie = cls.__new__(cls)
memo[id(self)] = copie
for k, v in self.__dict__.items():
setattr(copie, k, copy.deepcopy(v, memo))
return copie
def detect_all_variables(self):
"""
Detects all variables across all templates in the dscript object.
This method iterates through all ScriptTemplate objects in the dscript and
collects variables from each template using the detect_variables method.
Returns:
--------
list
A sorted list of unique variables detected in all templates.
"""
all_variables = set() # Use a set to avoid duplicates
# Iterate through all templates in the dscript object
for template_key, template in self.TEMPLATE.items():
# Ensure the template is a ScriptTemplate and has the detect_variables method
if isinstance(template, ScriptTemplate):
detected_vars = template.detect_variables()
all_variables.update(detected_vars) # Add the detected variables to the set
return sorted(all_variables) # Return a sorted list of unique variables
def add_dynamic_script(self, key, content="", userid=None, definitions=None, verbose=None, **USER):
"""
Add a dynamic script step to the dscript object.
Parameters:
-----------
key : str
The key for the dynamic script (usually an index or step identifier).
content : str or list of str, optional
The content (template) of the script step.
definitions : lambdaScriptdata, optional
The merged variable space (STATIC + GLOBAL + LOCAL).
verbose : bool, optional
If None, self.verbose will be used. Controls verbosity of the template.
USER : dict
Additional user variables that override the definitions for this step.
"""
if definitions is None:
definitions = lambdaScriptdata()
if verbose is None:
verbose = self.verbose
# Create a new ScriptTemplate and add it to the TEMPLATE
self.TEMPLATE[key] = ScriptTemplate(
content=content,
definitions=self.DEFINITIONS+definitions,
verbose=verbose,
userid = key if userid is None else userid,
**USER
)
def check_all_variables(self, verbose=True, seteval=True, output=False):
"""
Checks for undefined variables for each TEMPLATE key in the dscript object.
Parameters:
-----------
verbose : bool, optional, default=True
If True, prints information about variables for each TEMPLATE key.
Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined.
seteval : bool, optional, default=True
If True, sets the `eval` attribute to True if at least one variable is defined or set to its default value.
output : bool, optional, default=False
If True, returns a dictionary with lists of default variables, set variables, and undefined variables.
Returns:
--------
out : dict, optional
If `output=True`, returns a dictionary with the following structure:
- "defaultvalues": List of variables set to their default value (${varname}).
- "setvalues": List of variables defined with values other than their default.
- "undefined": List of variables that are undefined.
"""
out = {"defaultvalues": [], "setvalues": [], "undefined": []}
for key in self.TEMPLATE:
template = self.TEMPLATE[key]
# Call the check_variables method of ScriptTemplate for each TEMPLATE key
result = template.check_variables(verbose=verbose, seteval=seteval)
# Update the output dictionary if needed
out["defaultvalues"].extend(result["defaultvalues"])
out["setvalues"].extend(result["setvalues"])
out["undefined"].extend(result["undefined"])
if output:
return out
def set_all_variables(self):
"""
Ensures that all variables in the templates are added to the global definitions
with default values if they are not already defined.
"""
for key, script_template in self.TEMPLATE.items():
# Check and update the global definitions with template-specific variables
for var in script_template.detect_variables():
if var not in self.DEFINITIONS:
# Add undefined variables with their default value
self.DEFINITIONS.setattr(var, f"${{{var}}}") # Set default as ${varname}
# %% debug section - generic code to test methods (press F5)
# ===================================================
# main()
# ===================================================
# for debugging purposes (code called as a script)
# the code is called from here
# ===================================================
if __name__ == '__main__':
# Usage example
# -------------
# Initialize a dscript object
S = dscript()
# Add script lines/items with placeholders for variables
S[3] = "instruction .... with substitution rules ${v1}+${var2}"
S['alpha'] = "another script template ${v3}"
# Set a custom attribute for a specific line
S[3].attribute1 = True
# Reorder script lines/items
T = S[[1,0]]
# Define global variables in DEFINITIONS
S.DEFINITIONS.a = 1
S.DEFINITIONS.b = 2
# Update a script line and enable evaluation of its content
S[0] = "$a+$b"
S[0].eval = True
# Set a line as mandatory (not facultative)
S[3].facultative = False
# Access and print the content of specific script lines/items
print(S[3]) # Outputs: instruction .... with substitution rules ${v1}+${var2}
print(S['alpha']) # Outputs: another script template ${v3}
# Access and print custom attributes
print(S[3].attribute1) # Outputs: True
# Iterate through all script lines, printing their keys and content
for key, content in S.items():
print(f"Key: {key}, Content: {content}")
# Retrieve and evaluate the content of a script line by its index
S.get_content_by_index(0, False) # Retrieve without evaluation
S.get_content_by_index(0) # Retrieve with evaluation
# Access attributes of a specific script line by index
S.get_attributes_by_index(0)
# Apply conditions to the execution of a script line
S[0].condition = "$a>1"
S[0].condeval = True
S.get_content_by_index(2) # Condition not met, may result in an empty string
# Update the condition and evaluate again
S[0].condition = "$a>0"
S[0].do() # Executes and evaluates the line content
# Create multiple variables in DEFINITIONS if they don't already exist
S.createEmptyVariables(["a", "b", "c", "d", "e"])
# Access and print all current definitions
S.DEFINITIONS
# =====================================================
# Production Example: LAMMPS Header Initialization
# closely related to pizza.region.LammpsHeaderInit
# =====================================================
# Initialize a dscript object with a custom name
R = dscript(name="ProductionExample")
# Define global variables (DEFINITIONS) for the script
R.DEFINITIONS.dimension = 3
R.DEFINITIONS.units = "$si"
R.DEFINITIONS.boundary = ["sm", "sm", "sm"]
R.DEFINITIONS.atom_style = "$smd"
R.DEFINITIONS.atom_modify = ["map", "array"]
R.DEFINITIONS.comm_modify = ["vel", "yes"]
R.DEFINITIONS.neigh_modify = ["every", 10, "delay", 0, "check", "yes"]
R.DEFINITIONS.newton = "$off"
# Define the script template, associating each line with a key
R[0] = "% ${comment}" # line/item can be identied by numbers/names
R["dim"] = "dimension ${dimension}" # line/item identified as 'dim'
R["unit"] = "units ${units}" # line/item identified as 'unit'
R["bound"] = "boundary ${boundary}"
R["astyle"] = "atom_style ${atom_style}"
R["amod"] = "atom_modify ${atom_modify}"
R["cmod"] = "comm_modify ${comm_modify}"
R["nmod"] = "neigh_modify ${neigh_modify}"
R["newton"] = "newton ${newton}"
# Apply a condition to the 'astyle' line
# it will only be included if ${atom_style} is defined
R["astyle"].condition = "${atom_style}"
# Update DEFINITIONS to unset the atom_style variable
R.DEFINITIONS.atom_style = ""
# Generate a script instance, overwriting the 'units' variable and adding a comment
sR = R.script(units="$lj", # Use "$" to prevent immediate evaluation
comment="$my first dynamic script")
# Execute the script to generate the final content
ssR = sR.do()
# Print the generated script
print(ssR)
# Save the current script
R.save(overwrite=True)
# Load again the same script and show the script
T = dscript.load(R.name)
print(repr(T))
ssT = R.script(units="$lj", # Use "$" to prevent immediate evaluation
comment="$my second dynamic script").do()
print(ssT)
# ========================================================
# DSCRIPT SAVE FILE: Example: LAMMPS generic code
# This example is intended to illustrate the syntax
# Note that the script below does not include the header.
# It will be added with the write method
# ========================================================
# The script is defined here within a string
# note that the first line should be: # DSCRIPT SAVE FILE
myscript = """# DSCRIPT SAVE FILE
# Global Parameters:
# ------------------
# Define general settings for the script class.
# This section is not mandatory.
# Properties are defined within { }
# They include
# SECTIONS = ["DYNAMIC"] # the considered section names
# section = 0 # the current section index,
# position = 0 # the script position order,
# role = "dscript instance",
# description = "dynamic script",
# userid = "dscript",
# version = 0.1,
# verbose = False
{ # a line starting with { indicates the begining of the section
SECTIONS = ['INITIALIZATION', 'SIMULATION'], # this is a comment
section=0, position=0 } # note the closing } is mandatory
# DEFINITIONS (Define general settings for the script.)
# -----------
# All variables are defined in a Python way
d = 3 # d is a number and equals 3
units = "$lj" # $ is used to block immediate execution in a string
periodic = "$p" # $ is used to block immediate execution in a string
dimension = "${d}" # d is a variable
boundary = ["p", "p", "p"] # this a list (Python syntax)
atom_style = "$atomic"
lattice = ["fcc", 3.52] # this a list (Python syntax)
region = ["box", "block", 0, 10, 0, 10, 0, 10] # this a list (Python syntax)
create_box = [1, "box"]
create_atoms = [1, "box"]
mass = 1.0
pair_style = ["lj/cut", 2.5]
pair_coeff = [1, 1, 1.0, 1.0, 2.5]
velocity = ["all", "create", 300.0, 12345]
fix = [1, "all", "nve"]
run = 1000
timestep = 0.001
thermo = 100
# TEMPLATE:
# ---------
# Provide a template for how these parameters should be formatted or used in the script.
# The general syntax is:
# KEY: INSTRUCTION
# KEY can be numeric, alphanumeric
# INSTRUCTION can be any LAMMPS command involving variables defined in the DEFINITION section or elsewhere
units: units ${units} # key = units, template = units ${units}
dim: dimension ${dimension}
bound: boundary ${boundary}
astyle: atom_style ${atom_style}
lattice: lattice ${lattice}
region: region ${region}
create_box: create_box ${create_box}
create_atoms: create_atoms ${create_atoms}
mass: mass ${mass}
pair_style: pair_style ${pair_style}
pair_coeff: pair_coeff ${pair_coeff}
velocity: velocity ${velocity}
fix: fix ${fix}
run: run ${run}
timestep: timestep ${timestep}
thermo: thermo ${thermo}
# Attributes:
# -----------
# Each template line can have attributes (here default attributes, but the user can add more)
# Default value between ()
# facultative = True or (False) (remove the template line if True)
# eval = True or (False) (evaluate the template line with eval() if True)
# readonly True or (False) (prevent any subsequent modification() if True)
# condition = any expression with variables
# condeval = True or (False) (evaluate the condition with eval() if True)
# detectvar = (True) or False (create variables in DEFINITIONS if True)
units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True}
dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
"""
# write myscript to disk
myscriptfile = dscript.write(myscript)
print(f"DSCRIPT SAVE FILE: {myscriptfile}")
# load the script as a dscript object
myS = dscript.load(myscriptfile)
# generate the corresponding script
myS.units.do()
smyS = myS.script()
# Ececute the script and print it
ssmyS = smyS.do()
print(ssmyS)
# The conversion of a string into a script
# can be mediated via dscript.parsesyntax()
# without using a temporary file
mytemplate = dscript.parsesyntax(myscript).script()
mytemplatetxt = mytemplate.do()
print(mytemplatetxt)
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Beyond this line, the previous examples are tested with the new compact syntax
# enabling to define a template-block with a single key/tag.
# The intent is to accelerate scripting and readability.
#
# IMPORTANT
# In DSCRIPT SAVE FILE, a block uses a new syntax between square brackets "[]"
# # TEMPLATE (number of items=1)
# code: [
# % ${comment}
# dimension ${dimension}
# units ${units}
# boundary ${boundary}
# atom_style ${atom_style}
# atom_modify ${atom_modify}
# comm_modify ${comm_modify}
# neigh_modify ${neigh_modify}
# newton ${newton}
# ]
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
#
# =====================================================
# Production Example version 2: compact version
# using multiple lines/items template
# =====================================================
R2 = dscript(name="ProductionExample2")
# Define global variables (DEFINITIONS) for the script
R2.DEFINITIONS.dimension = 3
R2.DEFINITIONS.units = "$si"
R2.DEFINITIONS.boundary = ["sm", "sm", "sm"]
R2.DEFINITIONS.atom_modify = ["map", "array"]
R2.DEFINITIONS.comm_modify = ["vel", "yes"]
R2.DEFINITIONS.neigh_modify = ["every", 10, "delay", 0, "check", "yes"]
R2.DEFINITIONS.newton = "$off"
# Define the script template, associating each line with a key
R2["code"] = """
% ${comment} # this comment will be preserved as it starts with %
dimension ${dimension} # this comment will be deleted
units ${units}
boundary ${boundary}
atom_style ${atom_style}
atom_modify ${atom_modify}
comm_modify ${comm_modify}
neigh_modify ${neigh_modify}
newton ${newton}
"""
# Add missing defintion
R2.DEFINITIONS.atom_style = "$smd"
# Generate a script instance, overwriting the 'units' variable and adding a comment
sR2 = R2.script(units="$lj", # Use "$" to prevent immediate evaluation
comment="$my first dynamic script")
ssR2 = sR2.do()
# Print the generated script
print(ssR2)
# Save the current script
R2.save(overwrite=True)
# Load again the same script and show the script
T2 = dscript.load(R2.name)
print(repr(T2))
ssT2 = R2.script(units="$lj", # Use "$" to prevent immediate evaluation
comment="$my second dynamic script").do()
print(ssT2)
# ========================================================
# DSCRIPT SAVE FILE: compact version
# ========================================================
# The script is defined here within a string
# note that the first line should be: # DSCRIPT SAVE FILE
myscript2 = """# DSCRIPT SAVE FILE
# Global Parameters:
# ------------------
{ # a line starting with { indicates the begining of the section
SECTIONS = ['INITIALIZATION', 'SIMULATION'], # this is a comment
section=0, position=0 } # note the closing } is mandatory
# DEFINITIONS (Define general settings for the script.)
# -----------
d = 3 # d is a number and equals 3
units = "$lj" # $ is used to block immediate execution in a string
periodic = "$p" # $ is used to block immediate execution in a string
dimension = "${d}" # d is a variable
boundary = ["p", "p", "p"] # this a list (Python syntax)
atom_style = "$atomic"
lattice = ["fcc", 3.52] # this a list (Python syntax)
region = ["box", "block", 0, 10, 0, 10, 0, 10] # this a list (Python syntax)
create_box = [1, "box"]
create_atoms = [1, "box"]
mass = 1.0
pair_style = ["lj/cut", 2.5]
pair_coeff = [1, 1, 1.0, 1.0, 2.5]
velocity = ["all", "create", 300.0, 12345]
fix = [1, "all", "nve"]
run = 1000
timestep = 0.001
thermo = 100
# TEMPLATE:
# ---------
mytemplate1: [
# you can add comments inside templates
units ${units} # whereever you need
dimension ${dimension}
boundary ${boundary}
atom_style ${atom_style}
lattice ${lattice}
region ${region}
create_box ${create_box}
create_atoms ${create_atoms}
mass ${mass}
pair_style ${pair_style}
pair_coeff ${pair_coeff}
]
mytemplate2: [
velocity ${velocity}
fix ${fix}
run ${run}
timestep ${timestep}
thermo ${thermo}
]
# Attributes:
# -----------
mytemplate1: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True}
mytemplate2: {facultative=False, eval=False, readonly=False, condition="", condeval=False, detectvar=True}
"""
# write myscript to disk
myscriptfile2 = dscript.write(myscript2)
print(f"DSCRIPT SAVE FILE: {myscriptfile2}")
# load the script as a dscript object
myS2 = dscript.load(myscriptfile2)
# generate the corresponding script
smyS2 = myS2.script()
# Ececute the script and print it
ssmyS2 = smyS2.do()
print(ssmyS2)
# The conversion of a string into a script
# can be mediated via dscript.parsesyntax()
# without using a temporary file
mytemplate2 = dscript.parsesyntax(myscript2).script()
mytemplatetxt2 = mytemplate2.do()
print(mytemplatetxt2)
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# ADVANCED EXAMPLE
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
################################################################################
# This Python script demonstrates the conversion of a LAMMPS input script
# for a TLSPH (Total Lagrangian Smoothed Particle Hydrodynamics) simulation
# into a `dscript` object. The `dscript` format allows for flexible manipulation
# of variables, templates, and simulation parameters using Python.
#
# Example use case:
# - The script simulates elongation of a 2D strip of a linear elastic material
# by pulling its ends apart, using LAMMPS USER.SMD package.
# - The units are set to GPa / mm / ms, and material properties such as
# Young’s modulus, Poisson’s ratio, and density are defined.
# - The geometry, boundary conditions, material model, and output settings
# are set up dynamically.
#
# Sections in the script:
# 1. **INITIALIZE**: Initializes the LAMMPS environment and sets simulation settings.
# 2. **CREATE_GEOMETRY**: Defines the initial particle geometry and region.
# 3. **DISCRETIZATION**: Defines parameters for discretization and particle properties.
# 4. **BOUNDARY_CONDITIONS**: Sets velocity conditions to pull the strip's top and bottom edges.
# 5. **PHYSICS**: Specifies the interaction physics and material model using the USER.SMD package.
# 6. **OUTPUT**: Configures stress, strain, and neighbor computations for output.
# 7. **STATUS_OUTPUT**: Defines how stress and strain are calculated and output.
# 8. **RUN**: Executes the simulation for a specified number of steps.
#
# The main variables such as Young’s modulus (E), Poisson’s ratio (nu), and density (rho)
# are added to the `DEFINITIONS` section for dynamic use in the script.
#
# The `TEMPLATE` section organizes each block of the LAMMPS script under different keys
# (e.g., "initialize", "create", "discretization"), allowing easy manipulation or modification
# of individual parts of the script through Python code.
#
# This approach facilitates parameter sweeps, automatic adjustments of simulation inputs,
# and easy reconfiguration of simulation settings, making it suitable for high-throughput
# or iterative simulations in LAMMPS.
#
# The script can be saved, loaded, or executed in Python as a `dscript` object, providing
# a robust tool for dynamic LAMMPS input file generation and manipulation.
################################################################################
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# This flexible approach enables dynamic manipulation of simulation parameters.
# The full TLSPH template is defined as a multi-line script in DSCRIPT format.
# The following template was automatically generated by ChatGPT based on the
# original LAMMPS TLSPH simulation script for elongating a 2D strip of linear
# elastic material by pulling its ends apart.
#
# Key variables (such as Young's modulus, Poisson's ratio, and mass density)
# have been added to the DEFINITIONS section for dynamic substitution in the
# template.
#
# Read the synopsis of this module to learn how to instruct ChatGPT to generate
# such templates.
TLSPH_template = """# DSCRIPT SAVE FILE
# TENSILE SUMULATION
####################################################################################################
#
# TLSPH example: elongate a 2d strip of a linear elastic material py pulling its ends apart
#
# unit sytem: GPa / mm / ms
#
####################################################################################################
# Source:
# GLOBAL PARAMETERS
{
SECTIONS = ['INITIALIZE', 'CREATE_GEOMETRY', 'DISCRETIZATION', 'BOUNDARY_CONDITIONS', 'PHYSICS', 'OUTPUT', 'RUN'],
section = 0,
position = 0,
role = "dscript instance",
description = "Advanced example based on ChatGPT translation",
userid = "ChatGPT",
version = 1.0,
verbose = False
}
# DEFINITIONS (number of definitions=12)
E=1.0 # Young's modulus
nu=0.3 # Poisson ratio
rho=1.0 # Initial mass density
q1=0.06 # Artificial viscosity linear coefficient
q2=0.0 # Artificial viscosity quadratic coefficient
hg=10.0 # Hourglass control coefficient
cp=1.0 # Heat capacity
l0=1.0 # Lattice spacing
h=2.01 * ${l0} # SPH smoothing kernel radius
vol_one=${l0}**2 # Volume of one particle (unit thickness)
vel0=0.005 # Pull velocity
skin=${h} # Verlet list range
# TEMPLATE (number of lines=8)
initialize: [
dimension 2
units si
boundary sm sm p
atom_style smd
atom_modify map array
comm_modify vel yes
neigh_modify every 10 delay 0 check yes
newton off ]
# set region dimensions
boxlength = 10 # variables can be defined and changed any time (only the last definition is retained)
boxdepth = 0.1 # variables can be defined and changed any time (only the last definition is retained)
create: [
lattice sq ${l0}
region box block ${boxlength} ${boxlength} ${boxlength} ${boxlength} ${boxdepth} ${boxdepth} units box
create_box 1 box
create_atoms 1 box
group tlsph type 1 ]
discretization: [
neighbor ${skin} bin
set group all volume ${vol_one}
set group all smd_mass_density ${rho}
set group all diameter ${h} ]
boundary_conditions: [
region top block EDGE EDGE 9.0 EDGE EDGE EDGE units box
region bot block EDGE EDGE EDGE 9.1 EDGE EDGE units box
group top region top
group bot region bot
variable vel_up equal ${vel0} * (1.0 exp(0.01 * time))
variable vel_down equal v_vel_up
fix veltop_fix top smd/setvelocity 0 v_vel_up 0
fix velbot_fix bot smd/setvelocity 0 v_vel_down 0 ]
physics: [
pair_style smd/tlsph
pair_coeff 1 1 *COMMON ${rho} ${E} ${nu} ${q1} ${q2} ${hg} ${cp} &
*STRENGTH_LINEAR &
*EOS_LINEAR &
*END ]
output: [
compute S all smd/tlsph_stress
compute E all smd/tlsph_strain
compute nn all smd/tlsph_num_neighs
dump dump_id all custom 10 dump.LAMMPS id type x y z vx vy vz &
c_S[1] c_S[2] c_S[4] c_nn &
c_E[1] c_E[2] c_E[4] &
vx vy vz
dump_modify dump_id first yes ]
# add filename
outputfilename = "$stress_strain.dat" # variables can be defined and changed any time
status_output: [
variable stress equal 0.5 * (f_velbot_fix[2] - f_veltop_fix[2]) / 20
variable length equal xcm(top,y) - xcm(bot,y)
variable strain equal (v_length - ${length}) / ${length}
fix stress_curve all print 10 "${strain} ${stress}" file ${outputfilename} screen no
thermo 100
thermo_style custom step dt f_dtfix v_strain ]
# add runtime
runtime = 2000 # variables can be defined and changed any time
# single liner template
run_simulation: run ${runtime}
# change runtime
runtime = 2500 # variables can be defined and changed any time (only the last definition is retained)
# ATTRIBUTES (number of lines with explicit attributes=0)
"""
TLSPH = dscript.parsesyntax(TLSPH_template) # this is a dscript instance
TLSPH_script = TLSPH.script() # this is a script instance
TLSPH.code = TLSPH_script.do() # this is the corresponding LAMMPS code
print(TLSPH.code)
# Note that some definitions are missing since they are calculated by LAMMPS during the simulation
# It includes: stress, strain, length
repr(TLSPH.DEFINITIONS)Functions
def autoname(numChars=8)-
generate automatically names
Expand source code
def autoname(numChars=8): """ generate automatically names """ return ''.join(random.choices(string.ascii_letters, k=numChars)) # Generates a random name of numChars letters def frame_header(lines, padding=2, style=1, corner_symbols=None, horizontal_symbol=None, vertical_symbol=None, empty_line_symbol=None, line_fill_symbol=None, comment='#')-
Format the header content into an ASCII framed box with customizable properties.
Parameters
lines (list or tuple): The lines to include in the header. - Empty strings "" are replaced with lines of
line_fill_symbol. - None values are treated as empty lines.padding (int, optional): Number of spaces to pad on each side of the content. Default is 2. style (int, optional): Style index (1 to 6) for predefined frame styles. Default is 1. corner_symbols (str or tuple, optional): Symbols for the corners (top-left, top-right, bottom-left, bottom-right). Can be a string (e.g., "+") for uniform corners. horizontal_symbol (str, optional): Symbol to use for horizontal lines. vertical_symbol (str, optional): Symbol to use for vertical lines. empty_line_symbol (str, optional): Symbol to use for empty lines inside the frame. line_fill_symbol (str, optional): Symbol to fill lines that replace empty strings. comment (str, optional): Comment symbol to prefix each line. Can be multiple characters. Default is "#".
Returns
str- The formatted header as a string.
Raises
ValueError- If the specified style is undefined or
corner_symbolsis invalid.
Expand source code
def frame_header( lines, padding=2, style=1, corner_symbols=None, # Can be a string or a tuple horizontal_symbol=None, vertical_symbol=None, empty_line_symbol=None, line_fill_symbol=None, comment="#" ): """ Format the header content into an ASCII framed box with customizable properties. Parameters: lines (list or tuple): The lines to include in the header. - Empty strings "" are replaced with lines of `line_fill_symbol`. - None values are treated as empty lines. padding (int, optional): Number of spaces to pad on each side of the content. Default is 2. style (int, optional): Style index (1 to 6) for predefined frame styles. Default is 1. corner_symbols (str or tuple, optional): Symbols for the corners (top-left, top-right, bottom-left, bottom-right). Can be a string (e.g., "+") for uniform corners. horizontal_symbol (str, optional): Symbol to use for horizontal lines. vertical_symbol (str, optional): Symbol to use for vertical lines. empty_line_symbol (str, optional): Symbol to use for empty lines inside the frame. line_fill_symbol (str, optional): Symbol to fill lines that replace empty strings. comment (str, optional): Comment symbol to prefix each line. Can be multiple characters. Default is "#". Returns: str: The formatted header as a string. Raises: ValueError: If the specified style is undefined or `corner_symbols` is invalid. """ # Predefined styles styles = { 1: { "corner_symbols": ("+", "+", "+", "+"), "horizontal_symbol": "-", "vertical_symbol": "|", "empty_line_symbol": " ", "line_fill_symbol": "-" }, 2: { "corner_symbols": ("╔", "╗", "╚", "╝"), "horizontal_symbol": "═", "vertical_symbol": "║", "empty_line_symbol": " ", "line_fill_symbol": "═" }, 3: { "corner_symbols": (".", ".", "'", "'"), "horizontal_symbol": "-", "vertical_symbol": "|", "empty_line_symbol": " ", "line_fill_symbol": "-" }, 4: { "corner_symbols": ("#", "#", "#", "#"), "horizontal_symbol": "=", "vertical_symbol": "#", "empty_line_symbol": " ", "line_fill_symbol": "=" }, 5: { "corner_symbols": ("┌", "┐", "└", "┘"), "horizontal_symbol": "─", "vertical_symbol": "│", "empty_line_symbol": " ", "line_fill_symbol": "─" }, 6: { "corner_symbols": (".", ".", ".", "."), "horizontal_symbol": ".", "vertical_symbol": ":", "empty_line_symbol": " ", "line_fill_symbol": "." } } # Validate style and set defaults if style not in styles: raise ValueError(f"Undefined style {style}. Valid styles are {list(styles.keys())}.") selected_style = styles[style] # Convert corner_symbols to a tuple of 4 values if isinstance(corner_symbols, str): corner_symbols = (corner_symbols,) * 4 elif isinstance(corner_symbols, (list, tuple)) and len(corner_symbols) == 1: corner_symbols = tuple(corner_symbols * 4) elif isinstance(corner_symbols, (list, tuple)) and len(corner_symbols) == 2: corner_symbols = (corner_symbols[0], corner_symbols[1], corner_symbols[0], corner_symbols[1]) elif corner_symbols is None: corner_symbols = selected_style["corner_symbols"] elif not isinstance(corner_symbols, (list, tuple)) or len(corner_symbols) != 4: raise ValueError("corner_symbols must be a string or a tuple/list of 1, 2, or 4 elements.") # Apply overrides or defaults horizontal_symbol = horizontal_symbol or selected_style["horizontal_symbol"] vertical_symbol = vertical_symbol or selected_style["vertical_symbol"] empty_line_symbol = empty_line_symbol or selected_style["empty_line_symbol"] line_fill_symbol = line_fill_symbol or selected_style["line_fill_symbol"] # Process lines: Replace "" with line_fill placeholders, None with empty lines processed_lines = [] max_content_width = 0 for line in lines: if line == "": processed_lines.append("<LINE_FILL>") elif line is None: processed_lines.append(None) else: processed_lines.append(line) max_content_width = max(max_content_width, len(line)) # Adjust width for padding frame_width = max_content_width + padding * 2 # Build the top border top_border = f"{corner_symbols[0]}{horizontal_symbol * frame_width}{corner_symbols[1]}" # Build content lines with vertical borders framed_lines = [top_border] for line in processed_lines: if line is None: empty_line = f"{vertical_symbol}{empty_line_symbol * frame_width}{vertical_symbol}" framed_lines.append(empty_line) elif line == "<LINE_FILL>": fill_line = f"{vertical_symbol}{line_fill_symbol * frame_width}{vertical_symbol}" framed_lines.append(fill_line) else: content = line.center(frame_width) framed_line = f"{vertical_symbol}{content}{vertical_symbol}" framed_lines.append(framed_line) # Build the bottom border bottom_border = f"{corner_symbols[2]}{horizontal_symbol * frame_width}{corner_symbols[3]}" framed_lines.append(bottom_border) # Ensure all lines start with the comment symbol commented_lines = [ line if line.startswith(comment) else f"{comment} {line}" for line in framed_lines ] return "\n".join(commented_lines)+"\n" def get_metadata()-
Return a dictionary of explicitly defined metadata.
Expand source code
def get_metadata(): """Return a dictionary of explicitly defined metadata.""" # Define the desired metadata keys metadata_keys = [ "__project__", "__author__", "__copyright__", "__credits__", "__license__", "__maintainer__", "__email__", "__version__", ] # Filter only the desired keys from the current module's globals return {key.strip("_"): globals()[key] for key in metadata_keys if key in globals()} def remove_comments(content, split_lines=False, emptylines=False, comment_chars='#', continuation_marker='\\\\', remove_continuation_marker=False)-
Removes comments from a single or multi-line string, handling quotes, escaped characters, and line continuation.
Parameters:
content : str The input string, which may contain multiple lines. Each line will be processed individually to remove comments, while preserving content inside quotes. split_lines : bool, optional (default: False) If True, the function will return a list of processed lines. If False, it will return a single string with all lines joined by newlines. emptylines : bool, optional (default: False) If True, empty lines will be preserved in the output. If False, empty lines will be removed from the output. comment_chars : str, optional (default: "#") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. continuation_marker : str or None, optional (default: "\") A string containing characters to indicate line continuation (use
\to specify). Any characters after the continuation marker are ignored as a comment. If set toNoneor an empty string, line continuation will not be processed. remove_continuation_marker : bool, optional (default: False) If True, the continuation marker itself is removed from the processed line, keeping only the characters before it. If False, the marker is retained as part of the line.Returns:
str or list of str The processed content with comments removed. Returns a list of lines if
split_linesis True, or a single string if False.Expand source code
def remove_comments(content, split_lines=False, emptylines=False, comment_chars="#", continuation_marker="\\\\", remove_continuation_marker=False): """ Removes comments from a single or multi-line string, handling quotes, escaped characters, and line continuation. Parameters: ----------- content : str The input string, which may contain multiple lines. Each line will be processed individually to remove comments, while preserving content inside quotes. split_lines : bool, optional (default: False) If True, the function will return a list of processed lines. If False, it will return a single string with all lines joined by newlines. emptylines : bool, optional (default: False) If True, empty lines will be preserved in the output. If False, empty lines will be removed from the output. comment_chars : str, optional (default: "#") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. continuation_marker : str or None, optional (default: "\\\\") A string containing characters to indicate line continuation (use `\\` to specify). Any characters after the continuation marker are ignored as a comment. If set to `None` or an empty string, line continuation will not be processed. remove_continuation_marker : bool, optional (default: False) If True, the continuation marker itself is removed from the processed line, keeping only the characters before it. If False, the marker is retained as part of the line. Returns: -------- str or list of str The processed content with comments removed. Returns a list of lines if `split_lines` is True, or a single string if False. """ def process_line(line): """Remove comments and handle line continuation within a single line while managing quotes and escapes.""" in_single_quote = False in_double_quote = False escaped = False result = [] i = 0 while i < len(line): char = line[i] if escaped: result.append(char) escaped = False i += 1 continue # Handle escape character within quoted strings if char == '\\' and (in_single_quote or in_double_quote): escaped = True result.append(char) i += 1 continue # Toggle state for single and double quotes if char == "'" and not in_double_quote: in_single_quote = not in_single_quote elif char == '"' and not in_single_quote: in_double_quote = not in_double_quote # Check for line continuation marker if it's set and outside of quotes if continuation_marker and not in_single_quote and not in_double_quote: # Check if the remaining part of the line matches the continuation marker if line[i:].startswith(continuation_marker): # Optionally remove the continuation marker if remove_continuation_marker: result.append(line[:i].rstrip()) # Keep everything before the marker else: result.append(line[:i + len(continuation_marker)].rstrip()) # Include the marker itself return ''.join(result).strip() # Check for comment start characters outside of quotes if char in comment_chars and not in_single_quote and not in_double_quote: break # Stop processing the line when a comment is found result.append(char) i += 1 return ''.join(result).strip() # Split the input content into lines lines = content.split('\n') # Process each line, considering the emptylines flag processed_lines = [] for line in lines: stripped_line = line.strip() if not stripped_line and not emptylines: continue # Skip empty lines if emptylines is False if any(stripped_line.startswith(c) for c in comment_chars): continue # Skip lines that are pure comments processed_line = process_line(line) if processed_line or emptylines: # Only add non-empty lines if emptylines is False processed_lines.append(processed_line) if split_lines: return processed_lines # Return list of processed lines else: return '\n'.join(processed_lines) # Join lines back into a single string def span(vector, sep=' ', left='', right='')-
Expand source code
def span(vector,sep=" ",left="",right=""): return left + (vector if isinstance(vector, str) else sep.join(map(str, vector))) + right if vector is not None else ""
Classes
class ScriptTemplate (content='', definitions=Lambda Script Parameters (LSD object) with 0 parameter definitions, autorefresh=True, userid=None, verbose=False, comment_chars='#%', **kwargs)-
The
ScriptTemplateclass provides a mechanism to store, process, and dynamically substitute variables within script content. This class supports handling flags and conditions, allowing for flexible and conditional execution of parts of the script.Attributes:
default_attributes : dict (class-level) A dictionary containing the default flags for each
ScriptTemplateobject. These attributes are applied when initializing the object or when no flags are specified in the content. Flags include: - facultative (bool): If True, the script line is optional and may be discarded if certain conditions are not met. (default: False) - eval (bool): If True, the content is evaluated usingformateval, which allows for variable substitution during execution. (default: False) - readonly (bool): If True, the content cannot be modified after initialization. (default: False) - condition (str or None): A string that specifies a condition for executing the content. If the condition is not met, the script line is skipped. (default: None) - condeval (bool): If True, theconditionattribute is evaluated dynamically using variables. (default: False) - detectvar (bool): If True, any variables in the content (e.g.,${varname}) are automatically detected and registered in the definitions. (default: True)Methods:
init(self, content="", definitions=lambdaScriptdata(), userid=None, verbose=False, **kwargs): Initializes the
ScriptTemplateobject with script content, optional variable definitions, and configurable attributes. Flags likefacultative,eval,readonly,condition, and others are set via content prefixes or passed directly as keyword arguments.parse_content(cls, content, verbose=False): A class method that parses content to detect special flags and condition tags, returning the cleaned content and a dictionary of attributes (flags).
The method processes the following flags and tags: - `!` : Sets `eval=True`, which forces evaluation of the content. - `?` : Sets `facultative=True`, marking the content as optional. - `^` : Sets `readonly=True`, preventing modifications to the content. - `~` : Sets `detectvar=False`, disabling automatic variable detection. - `[if:condition]` : Defines a condition for executing the script. If the condition is met, the script will be executed. Conditions can include `;eval` to trigger evaluation. Parameters: ----------- content : str The script content to be parsed. It may contain lines starting with special characters that set specific attributes for the script template. verbose : bool (default: False) If True, preserves comments and does not remove comment lines during parsing. Returns: -------- cleaned_content : str The cleaned script content, with all flags and conditions removed. attributes : dict A dictionary of parsed attributes (flags) including: - facultative (bool): Indicates if the content is optional. - eval (bool): Specifies if the content should be evaluated for variable substitution. - readonly (bool): Prevents modifications to the content. - condition (str or None): Defines the condition for executing the script. - condeval (bool): If True, dynamically evaluates the condition. - detectvar (bool): If True, detects and registers variables in the content.detect_variables(self): Detects variables in the content using the pattern
${varname}. It returns a list of variable names found in the script.refreshvar(self): Ensures that any detected variables are added to the
definitionsif they are missing.setattr(self, name, value): Sets the value of an attribute. The method performs validation on specific attributes (e.g.,
eval,readonly,facultative, etc.) to ensure the correct data types are assigned.getattr(self, name): Retrieves the value of an attribute. If the attribute is not set, it returns the default value from
default_attributes.Example 1:
Create a ScriptTemplate object with content and optional definitions
line = ScriptTemplate("dimension ${dimension}")
You can also pass in global definitions if needed
global_definitions = lambdaScriptdata(dimension=3) line_with_defs = ScriptTemplate("dimension ${dimension}", definitions=global_definitions)
After initialization, you can modify the line's attributes or use it as part of a larger script managed by a
dscriptobject.Example 2:
# Example of using flags and conditions in content
line = ScriptTemplate("!velocity all set 0.0 0.0 0.0 units box") # This will automatically set
eval=Truedue to the '!' flag.line_with_condition = ScriptTemplate("[if: ${condition};eval] fix upper move wiggle 0.0 0.0 1.0 1.0") # This content will only execute if
${condition}is True, andevalwill be applied to substitute variables.Initializes a new
ScriptTemplateobject.The constructor sets up a new script template with content, optional variable definitions, and a set of configurable attributes. This template is capable of dynamically substituting variables using a provided
lambdaScriptdataobject or internal definitions. You can also manage attributes like evaluation, facultative execution, and variable detection.Parameters:
content : str or list of str The content of the script template, which can be a single string or a list of strings. If a single string is provided, it will automatically be converted to a list of lines. This ensures consistent handling of multi-line content.
definitions : lambdaScriptdata, optional A reference to a
lambdaScriptdataobject that contains global variable definitions. These definitions will be used to substitute variables within the content. Ifdefinitionsis not provided, variable substitution will rely on local or inline definitions.verbose : flag (default value=True) If True the comments are preserved (applied when str is a string).
autorefresh : flag (default=False) If True, new variables are automatically detected when the content is changed
**kwargs : Additional keyword arguments to set specific attributes for the script line. These attributes control the behavior of the script template during evaluation and execution. Any keyword argument passed here will update the default attribute values.
Default attributes (with default values): - facultative (False): If True, the script line is optional and may be discarded if certain conditions are not met. - eval (False): If True, the content will be evaluated using <code>formateval</code>, allowing variable substitution during the execution. - readonly (False): If True, the content of the script cannot be modified after initialization. - condition (None): An optional condition that controls whether the content will be executed. If the condition is not met, the script line will not be executed. - condeval (False): If True, the <code>condition</code> attribute will be evaluated, allowing conditional logic based on variable values. - detectvar (True): If True, the content will automatically detect and register any variables (such as `${varname}`) within the <code>definitions</code> for substitution. - comment_chars : str, optional (default: "#%") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes.Expand source code
class ScriptTemplate: """ The `ScriptTemplate` class provides a mechanism to store, process, and dynamically substitute variables within script content. This class supports handling flags and conditions, allowing for flexible and conditional execution of parts of the script. Attributes: ----------- default_attributes : dict (class-level) A dictionary containing the default flags for each `ScriptTemplate` object. These attributes are applied when initializing the object or when no flags are specified in the content. Flags include: - facultative (bool): If True, the script line is optional and may be discarded if certain conditions are not met. (default: False) - eval (bool): If True, the content is evaluated using `formateval`, which allows for variable substitution during execution. (default: False) - readonly (bool): If True, the content cannot be modified after initialization. (default: False) - condition (str or None): A string that specifies a condition for executing the content. If the condition is not met, the script line is skipped. (default: None) - condeval (bool): If True, the `condition` attribute is evaluated dynamically using variables. (default: False) - detectvar (bool): If True, any variables in the content (e.g., `${varname}`) are automatically detected and registered in the definitions. (default: True) Methods: -------- __init__(self, content="", definitions=lambdaScriptdata(), userid=None, verbose=False, **kwargs): Initializes the `ScriptTemplate` object with script content, optional variable definitions, and configurable attributes. Flags like `facultative`, `eval`, `readonly`, `condition`, and others are set via content prefixes or passed directly as keyword arguments. parse_content(cls, content, verbose=False): A class method that parses content to detect special flags and condition tags, returning the cleaned content and a dictionary of attributes (flags). The method processes the following flags and tags: - `!` : Sets `eval=True`, which forces evaluation of the content. - `?` : Sets `facultative=True`, marking the content as optional. - `^` : Sets `readonly=True`, preventing modifications to the content. - `~` : Sets `detectvar=False`, disabling automatic variable detection. - `[if:condition]` : Defines a condition for executing the script. If the condition is met, the script will be executed. Conditions can include `;eval` to trigger evaluation. Parameters: ----------- content : str The script content to be parsed. It may contain lines starting with special characters that set specific attributes for the script template. verbose : bool (default: False) If True, preserves comments and does not remove comment lines during parsing. Returns: -------- cleaned_content : str The cleaned script content, with all flags and conditions removed. attributes : dict A dictionary of parsed attributes (flags) including: - facultative (bool): Indicates if the content is optional. - eval (bool): Specifies if the content should be evaluated for variable substitution. - readonly (bool): Prevents modifications to the content. - condition (str or None): Defines the condition for executing the script. - condeval (bool): If True, dynamically evaluates the condition. - detectvar (bool): If True, detects and registers variables in the content. detect_variables(self): Detects variables in the content using the pattern `${varname}`. It returns a list of variable names found in the script. refreshvar(self): Ensures that any detected variables are added to the `definitions` if they are missing. __setattr__(self, name, value): Sets the value of an attribute. The method performs validation on specific attributes (e.g., `eval`, `readonly`, `facultative`, etc.) to ensure the correct data types are assigned. __getattr__(self, name): Retrieves the value of an attribute. If the attribute is not set, it returns the default value from `default_attributes`. Example 1: ---------- # Create a ScriptTemplate object with content and optional definitions line = ScriptTemplate("dimension ${dimension}") # You can also pass in global definitions if needed global_definitions = lambdaScriptdata(dimension=3) line_with_defs = ScriptTemplate("dimension ${dimension}", definitions=global_definitions) After initialization, you can modify the line's attributes or use it as part of a larger script managed by a `dscript` object. Example 2: ---------- # Example of using flags and conditions in content line = ScriptTemplate("!velocity all set 0.0 0.0 0.0 units box") # This will automatically set `eval=True` due to the '!' flag. line_with_condition = ScriptTemplate("[if: ${condition};eval] fix upper move wiggle 0.0 0.0 1.0 1.0") # This content will only execute if `${condition}` is True, and `eval` will be applied to substitute variables. """ # Class-level attribute for default flags default_attributes = { 'facultative': False, 'eval': False, 'readonly': False, 'condition': None, 'condeval': False, 'detectvar': True } def __init__(self, content="", definitions=lambdaScriptdata(), autorefresh=True, userid=None, verbose=False, comment_chars="#%", **kwargs): """ Initializes a new `ScriptTemplate` object. The constructor sets up a new script template with content, optional variable definitions, and a set of configurable attributes. This template is capable of dynamically substituting variables using a provided `lambdaScriptdata` object or internal definitions. You can also manage attributes like evaluation, facultative execution, and variable detection. Parameters: ----------- content : str or list of str The content of the script template, which can be a single string or a list of strings. If a single string is provided, it will automatically be converted to a list of lines. This ensures consistent handling of multi-line content. definitions : lambdaScriptdata, optional A reference to a `lambdaScriptdata` object that contains global variable definitions. These definitions will be used to substitute variables within the content. If `definitions` is not provided, variable substitution will rely on local or inline definitions. verbose : flag (default value=True) If True the comments are preserved (applied when str is a string). autorefresh : flag (default=False) If True, new variables are automatically detected when the content is changed **kwargs : Additional keyword arguments to set specific attributes for the script line. These attributes control the behavior of the script template during evaluation and execution. Any keyword argument passed here will update the default attribute values. Default attributes (with default values): - facultative (False): If True, the script line is optional and may be discarded if certain conditions are not met. - eval (False): If True, the content will be evaluated using `formateval`, allowing variable substitution during the execution. - readonly (False): If True, the content of the script cannot be modified after initialization. - condition (None): An optional condition that controls whether the content will be executed. If the condition is not met, the script line will not be executed. - condeval (False): If True, the `condition` attribute will be evaluated, allowing conditional logic based on variable values. - detectvar (True): If True, the content will automatically detect and register any variables (such as `${varname}`) within the `definitions` for substitution. - comment_chars : str, optional (default: "#%") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. """ # Initialize `_CACHE` with separate entries for each method self._CACHE = { 'variables': {'result': None}, 'check_variables': {'result': None} } # Constructor self._autorefresh = autorefresh self._content = content # # Store initial content self.definitions = lambdaScriptdata(**definitions) # Reference to the DEFINITIONS object # Initialize attributes with default values self.attributes = self.default_attributes.copy() # Convert single string content to a list for consistent processing if content == "" or content is None: content = "" # Set to empty string if None elif isinstance(content, str): # Interpret the content and extract any attribute flags (e.g. !, ?, etc.) content, self.attributes = self.parse_content(content, verbose=verbose) # Convert content to a list of strings if verbose: content = content.split('\n') # All comments are preserved during construction else: content = remove_comments(content, split_lines=True,comment_chars=comment_chars) # Split string by newlines into list of strings elif not isinstance(content, list) or not all(isinstance(item, str) for item in content): raise TypeError("The 'content' attribute must be a string or a list of strings.") # Assign content to the object self.content = content # Update attributes with any additional keyword arguments passed in self.attributes.update(kwargs) # Detect variables in the content detected_variables = self.detect_variables() # Automatically set `eval=True` if any detected variables are defined in `definitions` if detected_variables: for var in detected_variables: if var in self.definitions: self.attributes['eval'] = True break # No need to continue checking once we know eval should be set # Assign userid (optional) self.userid = userid if userid is not None else autoname(3) def _calculate_content_hash(self, content): """Generate hash for content.""" return hashlib.md5("\n".join(content).encode()).hexdigest() if isinstance(content, list) else hashlib.md5(content.encode()).hexdigest() @property def content(self): return self._content @content.setter def content(self, new_content): """Set content and reinitialize cache if the content has changed.""" new_content_hash = self._calculate_content_hash(new_content) if new_content_hash != self._content_hash: self._content = new_content self._content_hash = new_content_hash self._invalidate_cache() # Reset cache only if content changes def _update_content(self, value): """Helper to set _content and _content_hash, refreshing cache as necessary.""" # Check if content modification is allowed based on readonly attribute if getattr(self, 'attributes', {}).get('readonly', False): raise AttributeError("Cannot modify content. It is read-only.") # Validate and process content as either a string or list of strings if isinstance(value, str): value = remove_comments(value, split_lines=True) elif not isinstance(value, list) or not all(isinstance(item, str) for item in value): raise TypeError("The 'content' attribute must be a string or a list of strings.") # Set _content and calculate hash super().__setattr__('_content', value) new_hash = hash(tuple(value)) # If hash changes, reset cache if new_hash != getattr(self, '_content_hash', None): super().__setattr__('_content_hash', new_hash) self._invalidate_cache() # Invalidate cache due to content change if self._autorefresh: self.refreshvar() # Refresh variables based on new content def _invalidate_cache(self): """Reset all cache entries.""" # Check if _CACHE is initialized if not hasattr(self, '_CACHE'): self._CACHE = { 'variables': {'result': None}, 'check_variables': {'result': None} } for entry in self._CACHE.values(): entry['result'] = None @classmethod def parse_content(cls, content, verbose=False): """ Parse the content string and return: 1. Cleaned content (without flags or condition tags). 2. A dictionary of attributes (flags) initialized with default values. Parameters: ----------- content : str The content string to be parsed. Returns: -------- cleaned_content : str The cleaned content with all flag prefixes and condition tags removed. attributes : dict A dictionary of attributes (flags) set based on the content prefixes. """ attributes = cls.default_attributes.copy() # Handle empty content if not content.strip(): # Empty string or whitespace-only return "", attributes idx = 0 cleaned_content = [] # If content is a single string, split it into lines if isinstance(content, str): content = content.split('\n') # Remove leading and trailing empty lines while content and content[0].strip() == '': content.pop(0) while content and content[-1].strip() == '': content.pop() # Process each remaining line to detect flags and conditions for line in content: idx = 0 line = line.strip() # Trim any leading/trailing whitespace # Parse flags and conditions only at the beginning of the line while idx < len(line): ch = line[idx] if ch == '!': attributes['eval'] = True idx += 1 elif ch == '?': attributes['facultative'] = True idx += 1 elif ch == '^': attributes['readonly'] = True idx += 1 elif ch == '~': attributes['detectvar'] = False idx += 1 elif line.startswith('[if:', idx): # Parse condition end_idx = line.find(']', idx) if end_idx == -1: raise ValueError("Unclosed '[if:]' tag in content") cond_str = line[idx + 4:end_idx] if ';eval' in cond_str: attributes['condeval'] = True cond_str = cond_str.replace(';eval', '') attributes['condition'] = cond_str.strip() idx = end_idx + 1 else: break # No more flags or conditions, process the rest of the line # Skip any whitespace after flags or conditions while idx < len(line) and line[idx] in (' ', '\t'): idx += 1 # Append the cleaned line (without flags or condition tags) cleaned_content.append(line[idx:].strip()) # Join the cleaned lines back into a single string cleaned_content = '\n'.join(cleaned_content) return cleaned_content, attributes def __str__(self): num_attrs = len(self.attributes) # All attributes count return f"1 line/block, {num_attrs} attributes" def __repr__(self): # Template content section total_lines = len(self.content) total_variables = len(self.definitions) line_word = "lines" if total_lines > 1 else "line" variable_word = "defs" if total_variables > 1 else "def" content_label = "Template Content" content_label += "" if self.userid == "" else f" | id:{self.userid}" available_space = 50 - len(content_label) - 1 repr_str = "-" * 50 + "\n" repr_str += f"{content_label}{('(' + str(total_lines) + ' ' + line_word + ', ' + str(total_variables) + ' ' + variable_word + ')').rjust(available_space)}\n" repr_str += "-" * 50 + "\n" if total_lines < 1: repr_str += "< empty content >\n" elif total_lines <= 12: # If content has 12 or fewer lines, display all lines for line in self.content: truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line repr_str += f"{truncated_line:<50}\n" else: # Display first three lines, middle three lines, and last three lines for line in self.content[:3]: truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line repr_str += f"{truncated_line:<50}\n" repr_str += "\t\t[...]\n" mid_start = total_lines // 2 - 1 mid_end = mid_start + 3 for line in self.content[mid_start:mid_end]: truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line repr_str += f"{truncated_line:<50}\n" repr_str += "\t\t[...]\n" for line in self.content[-3:]: truncated_line = (line[:18] + '[...]' + line[-18:]) if len(line) > 40 else line repr_str += f"{truncated_line:<50}\n" # Detected Variables section in 3-column format detected_variables = self.detect_variables() if detected_variables: repr_str += "-" * 50 + "\n" # Count the number of defined and missing variables defined_variables = set(self.definitions.keys()) if self.definitions else set() variable_word = 'Variables' if len(detected_variables) > 1 else 'Variable' detected_set = set(detected_variables) missing_variables = detected_set - defined_variables defined_count = len(detected_set & defined_variables) missing_count = len(missing_variables) total_variables = len(detected_set) repr_str += f"Detected {variable_word}{('(' + str(total_variables) + ' / +' + str(defined_count) + ' / -' + str(missing_count) + ')').rjust(50 - len('Detected Variables') - 1)}\n" repr_str += "-" * 50 + "\n" # Display variables with status: # [+] for defined variables with values other than "${varname}" # [-] for defined variables with default values "${varname}" # [ ] for undefined variables for i in range(0, len(detected_variables), 3): var_set = detected_variables[i:i+3] line = "" for var in var_set: var_name = (var[:10] + ' ') if len(var) > 10 else var.ljust(11) if var in defined_variables: # Check if it's set to its default value (i.e., "${varname}") if self.definitions[var] == f"${{{var}}}": flag = '[-]' else: flag = '[+]' else: flag = '[ ]' line += f"{flag} {var_name} " repr_str += f"{line}\n" # Attribute section in 3 columns repr_str += "-" * 50 + "\n" repr_str += f"Template Attributes{('(' + str(len(self.attributes)) + ' attributes)').rjust(50 - len('Template Attributes') - 1)}\n" repr_str += "-" * 50 + "\n" # Create a compact three-column layout for attributes with checkboxes attr_items = [(attr, '[x]' if value else '[ ]') for attr, value in self.attributes.items() if attr != 'definitions'] for i in range(0, len(attr_items), 3): attr_set = attr_items[i:i+3] line = "" for attr, value in attr_set: attr_name = (attr[:10] + ' ') if len(attr) > 10 else attr.ljust(11) line += f"{value} {attr_name} " repr_str += f"{line}\n" return repr_str def __setattr__(self, name, value): # Handle specific attributes with validation if name in ['facultative', 'eval', 'readonly']: if not isinstance(value, bool): raise TypeError(f"The '{name}' attribute must be a Boolean, not {type(value).__name__}.") elif name == 'condition': if not isinstance(value, str) and value is not None: raise TypeError(f"The 'condition' attribute must be a string or None, not {type(value).__name__}.") elif name == 'content': # Use helper to manage content updates and cache invalidation self._update_content(value) return # Exit to avoid further processing since _update_content handles the setting elif name == 'definitions': if not isinstance(value, (lambdaScriptdata, scriptdata)) and value is not None: raise TypeError(f"The 'definitions' must be a lambdaScriptdata or scriptdata, not {type(value).__name__}.") # Set attributes directly for key fields and avoid recursion if name in ['userid', 'attributes', 'definitions', '_content', '_content_hash', '_autorefresh']: super().__setattr__(name, value) else: # Ensure 'attributes' is initialized before updating if not hasattr(self, 'attributes') or self.attributes is None: self.attributes = {} self.attributes[name] = value def __getattr__(self, name): """ Handles attribute retrieval, checking the following in order: 1. If 'name' is in default_attributes, return the value from attributes if it exists, otherwise return the default value from default_attributes. 2. If 'name' is 'content', return the content (or an empty string if content is not set). 3. If 'name' exists in the attributes dictionary, return its value. 4. If attributes itself exists in __dict__, return the value from attributes if 'name' is found. 5. If all previous checks fail, raise an AttributeError indicating that 'name' is not found. """ # Ensure '_CACHE' is always accessible without a KeyError if name == '_CACHE': # Initialize _CACHE if it does not exist if '_CACHE' not in self.__dict__: self.__dict__['_CACHE'] = { 'variables': {'result': None}, 'check_variables': {'result': None} } return self.__dict__['_CACHE'] # Access _CACHE directly # Step 1: Check if 'name' is a valid attribute in default_attributes if name in self.default_attributes: # Directly access __dict__ to avoid recursive lookup attributes = self.__dict__.get('attributes', {}) return attributes.get(name, self.default_attributes[name]) # Step 2: Special case for 'content' if name == 'content': # Directly access __dict__ to avoid recursion return self.__dict__.get('_content', "") if name == "_autorefresh": return self.__dict__.get('_autorefresh', True) # Step 3: Check if 'name' exists in 'attributes' and return its value directly attributes = self.__dict__.get('attributes', {}) if name in attributes: return attributes[name] # Step 4: Check if 'attributes' exists in __dict__ and retrieve 'name' if present if 'attributes' in self.__dict__ and name in self.__dict__['attributes']: return self.__dict__['attributes'][name] # Step 5: If none of the above conditions are met, raise an AttributeError raise AttributeError(f"'{self.__class__.__name__}' object has no attribute '{name}'") def do(self, protected=True, softrun=False, USER=lambdaScriptdata()): """ Executes or prepares the script template content based on its attributes and the `softrun` flag. Parameters ---------- protected : bool, optional If `True` (default), variable evaluation uses a protected environment, safeguarding global definitions and system attributes from modification during execution. softrun : bool, optional Determines if the script is evaluated in a preliminary mode: - If `True`, returns the script content without full evaluation, allowing for a preview or an initial capture of local definitions without substituting variables. - If `False` (default), processes the script with full evaluation, applying all substitutions defined in `definitions`. USER : lambdaScriptdata, optional A `lambdaScriptdata` instance with user-provided definitions, which supplement or override template-level definitions during execution. Returns ------- str The processed or original script content as a single string. - Returns an empty string if `facultative` is set to `True`, or if `condition` is `False` and does not meet any specified evaluation requirements. Notes ----- - `facultative`: If `True`, the method returns an empty string, effectively skipping execution of the content. - `condition`: If specified, this attribute is evaluated to decide whether the content should be processed (default `True` if `condition` is `None`). If `condeval` is `True`, the condition itself undergoes evaluation using Python's `eval`. - `eval`: If `True` and `softrun` is `False`, performs evaluation for variable substitution on the content lines, applying transformations based on both `definitions` and `USER` definitions if provided. This allows variables to be dynamically substituted within the script content. Processing Workflow ------------------- 1. **Facultative Check**: If the `facultative` attribute is `True`, immediately returns an empty string. 2. **Condition Check**: If a `condition` is specified, it is evaluated: - If `condeval` is `True`, the condition undergoes evaluation (using `eval`). - If the evaluated `condition` is `False`, returns an empty string, skipping execution. 3. **Execution Based on `softrun`**: - If `softrun` is `True`, returns the original content without variable substitution, providing a preview. - If `softrun` is `False`, evaluates the content lines based on `definitions` and `USER` if applicable. 4. **Variable Formatting**: During evaluation, lists and tuples are formatted into strings with prefixed comments, enhancing readability and handling complex data structures directly in the script. Example ------- >>> template = ScriptTemplate( ... content=["variable x equal ${var1}", "print 'Value of x is ${var1}'"], ... definitions=lambdaScriptdata(var1=10) ... ) >>> template.do() "variable x equal 10\nprint 'Value of x is 10'" """ # If 'facultative' is set to True, return an empty string immediately if self.attributes.get("facultative", False): return "" # Evaluate condition if present cond = True if self.attributes.get("condition") is not None: condition_expr = self.definitions.formateval(self.attributes["condition"], protected) cond = eval(condition_expr) if self.attributes.get("condeval", False) else condition_expr # Process based on softrun flag if softrun: return "\n".join(self.content) if cond else "" # Perform full processing when softrun is False if cond: if self.attributes.get("eval", False): #return "\n".join([self.definitions.formateval(line, protected) for line in self.content]) inputs = self.definitions + USER for k in inputs.keys(): if isinstance(inputs.getattr(k),list): inputs.setattr(k,"% "+span(inputs.getattr(k))) elif isinstance(inputs.getattr(k),tuple): inputs.setattr(k,"% "+span(inputs.getattr(k),sep=",")) return "\n".join([inputs.formateval(line, protected) for line in self.content]) else: return "\n".join(self.content) return "" def detect_variables(self): """ Detects variables in the content of the template using the pattern r'\$\{(\w+)\}'. Returns: -------- list A list of unique variable names detected in the content. """ # Check cache first cache_entry = self._CACHE['variables'] if cache_entry['result'] is not None: return cache_entry['result'] # Detect variables if cache miss or content changed variable_pattern = re.compile(r'\$\{(\w+)\}') detected_vars = {variable for line in self.content for variable in variable_pattern.findall(line)} # Cache the result and return output cache_entry['result'] = list(detected_vars) return cache_entry['result'] def refreshvar(self,globaldefinitions = lambdaScriptdata()): """ Detects variables in the content and adds them to definitions if needed. This method ensures that variables like ${varname} are correctly detected and added to the definitions if they are missing. use globaldefinitions to add a list of global variables/definitions """ if self.attributes["detectvar"] and isinstance(self.content, list) and self.definitions: variables = self.detect_variables() for varname in variables: if (varname not in self.definitions) and (varname not in globaldefinitions): self.definitions.setattr(varname, "${" + varname + "}") def check_variables(self, verbose=True, seteval=True): """ Checks for undefined variables in the ScriptTemplate instance. Parameters: ----------- verbose : bool, optional, default=True If True, prints information about variables for the template. Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined. seteval : bool, optional, default=True If True, sets the `eval` attribute to True if at least one variable is defined or set to its default value. Returns: -------- out : dict A dictionary with lists of default variables, set variables, and undefined variables: - "defaultvalues": Variables set to their default value (${varname}). - "setvalues": Variables defined with a specific value. - "undefined": Variables that are undefined. """ # Check cache first cache_entry = self._CACHE['check_variables'] if cache_entry['result'] is not None: return cache_entry['result'] # Main out = {"defaultvalues": [], "setvalues": [], "undefined": []} detected_vars = self.detect_variables() defined_vars = set(self.definitions.keys()) if self.definitions else set() set_values, default_values, undefined_vars = [], [], [] if verbose: print(f"\nTEMPLATE {self.userid} variables:") for var in detected_vars: if var in defined_vars: if self.definitions[var] == f"${{{var}}}": # Check for default value default_values.append(var) if verbose: print(f"[-] {var}") # Variable is set to its default value else: set_values.append(var) if verbose: print(f"[+] {var}") # Variable is defined with a specific value else: undefined_vars.append(var) if verbose: print(f"[ ] {var}") # Variable is not defined # If seteval is True, set eval to True if at least one variable is defined or set to its default if seteval and (set_values or default_values): self.attributes['eval'] = True # Set eval in the attributes dictionary # Update the output dictionary out["defaultvalues"].extend(default_values) out["setvalues"].extend(set_values) out["undefined"].extend(undefined_vars) # update Cache and return output cache_entry['result'] = out return out def is_variable_defined(self, var_name): """ Checks if a specified variable is defined (either as a default value or a set value). Parameters: ----------- var_name : str The name of the variable to check. Returns: -------- bool True if the variable is defined (either as a default or a set value), False if not. Raises: ------- ValueError If `var_name` is invalid or undefined in the template. """ if not isinstance(var_name, str): raise ValueError("Variable name must be a string.") variable_status = self.check_variables(verbose=False, seteval=False) # Check if the variable is in default values or set values if var_name in variable_status["defaultvalues"] or var_name in variable_status["setvalues"]: return True else: raise ValueError(f"Variable '{var_name}' is undefined in the template.") def is_variable_set_value_only(self, var_name): """ Checks if a specified variable is defined and set to a specific (non-default) value. Parameters: ----------- var_name : str The name of the variable to check. Returns: -------- bool True if the variable is defined with a set (non-default) value, False if not. Raises: ------- ValueError If `var_name` is invalid or not defined in the template. """ if not isinstance(var_name, str): raise ValueError("Variable name must be a string.") variable_status = self.check_variables(verbose=False, seteval=False) # Check if the variable is in set values only (not default values) if var_name in variable_status["setvalues"]: return True elif var_name in variable_status["defaultvalues"]: return False # Defined but only at its default value else: raise ValueError(f"Variable '{var_name}' is undefined in the template.")Class variables
var default_attributes
Static methods
def parse_content(content, verbose=False)-
Parse the content string and return: 1. Cleaned content (without flags or condition tags). 2. A dictionary of attributes (flags) initialized with default values.
Parameters:
content : str The content string to be parsed.
Returns:
cleaned_content : str The cleaned content with all flag prefixes and condition tags removed. attributes : dict A dictionary of attributes (flags) set based on the content prefixes.
Expand source code
@classmethod def parse_content(cls, content, verbose=False): """ Parse the content string and return: 1. Cleaned content (without flags or condition tags). 2. A dictionary of attributes (flags) initialized with default values. Parameters: ----------- content : str The content string to be parsed. Returns: -------- cleaned_content : str The cleaned content with all flag prefixes and condition tags removed. attributes : dict A dictionary of attributes (flags) set based on the content prefixes. """ attributes = cls.default_attributes.copy() # Handle empty content if not content.strip(): # Empty string or whitespace-only return "", attributes idx = 0 cleaned_content = [] # If content is a single string, split it into lines if isinstance(content, str): content = content.split('\n') # Remove leading and trailing empty lines while content and content[0].strip() == '': content.pop(0) while content and content[-1].strip() == '': content.pop() # Process each remaining line to detect flags and conditions for line in content: idx = 0 line = line.strip() # Trim any leading/trailing whitespace # Parse flags and conditions only at the beginning of the line while idx < len(line): ch = line[idx] if ch == '!': attributes['eval'] = True idx += 1 elif ch == '?': attributes['facultative'] = True idx += 1 elif ch == '^': attributes['readonly'] = True idx += 1 elif ch == '~': attributes['detectvar'] = False idx += 1 elif line.startswith('[if:', idx): # Parse condition end_idx = line.find(']', idx) if end_idx == -1: raise ValueError("Unclosed '[if:]' tag in content") cond_str = line[idx + 4:end_idx] if ';eval' in cond_str: attributes['condeval'] = True cond_str = cond_str.replace(';eval', '') attributes['condition'] = cond_str.strip() idx = end_idx + 1 else: break # No more flags or conditions, process the rest of the line # Skip any whitespace after flags or conditions while idx < len(line) and line[idx] in (' ', '\t'): idx += 1 # Append the cleaned line (without flags or condition tags) cleaned_content.append(line[idx:].strip()) # Join the cleaned lines back into a single string cleaned_content = '\n'.join(cleaned_content) return cleaned_content, attributes
Instance variables
var content-
Expand source code
@property def content(self): return self._content
Methods
def check_variables(self, verbose=True, seteval=True)-
Checks for undefined variables in the ScriptTemplate instance.
Parameters:
verbose : bool, optional, default=True If True, prints information about variables for the template. Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined.
seteval : bool, optional, default=True If True, sets the
evalattribute to True if at least one variable is defined or set to its default value.Returns:
out : dict A dictionary with lists of default variables, set variables, and undefined variables: - "defaultvalues": Variables set to their default value (${varname}). - "setvalues": Variables defined with a specific value. - "undefined": Variables that are undefined.
Expand source code
def check_variables(self, verbose=True, seteval=True): """ Checks for undefined variables in the ScriptTemplate instance. Parameters: ----------- verbose : bool, optional, default=True If True, prints information about variables for the template. Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined. seteval : bool, optional, default=True If True, sets the `eval` attribute to True if at least one variable is defined or set to its default value. Returns: -------- out : dict A dictionary with lists of default variables, set variables, and undefined variables: - "defaultvalues": Variables set to their default value (${varname}). - "setvalues": Variables defined with a specific value. - "undefined": Variables that are undefined. """ # Check cache first cache_entry = self._CACHE['check_variables'] if cache_entry['result'] is not None: return cache_entry['result'] # Main out = {"defaultvalues": [], "setvalues": [], "undefined": []} detected_vars = self.detect_variables() defined_vars = set(self.definitions.keys()) if self.definitions else set() set_values, default_values, undefined_vars = [], [], [] if verbose: print(f"\nTEMPLATE {self.userid} variables:") for var in detected_vars: if var in defined_vars: if self.definitions[var] == f"${{{var}}}": # Check for default value default_values.append(var) if verbose: print(f"[-] {var}") # Variable is set to its default value else: set_values.append(var) if verbose: print(f"[+] {var}") # Variable is defined with a specific value else: undefined_vars.append(var) if verbose: print(f"[ ] {var}") # Variable is not defined # If seteval is True, set eval to True if at least one variable is defined or set to its default if seteval and (set_values or default_values): self.attributes['eval'] = True # Set eval in the attributes dictionary # Update the output dictionary out["defaultvalues"].extend(default_values) out["setvalues"].extend(set_values) out["undefined"].extend(undefined_vars) # update Cache and return output cache_entry['result'] = out return out def detect_variables(self)-
Detects variables in the content of the template using the pattern r'\${(\w+)}'.
Returns:
list A list of unique variable names detected in the content.
Expand source code
def detect_variables(self): """ Detects variables in the content of the template using the pattern r'\$\{(\w+)\}'. Returns: -------- list A list of unique variable names detected in the content. """ # Check cache first cache_entry = self._CACHE['variables'] if cache_entry['result'] is not None: return cache_entry['result'] # Detect variables if cache miss or content changed variable_pattern = re.compile(r'\$\{(\w+)\}') detected_vars = {variable for line in self.content for variable in variable_pattern.findall(line)} # Cache the result and return output cache_entry['result'] = list(detected_vars) return cache_entry['result'] def do(self, protected=True, softrun=False, USER=Lambda Script Parameters (LSD object) with 0 parameter definitions)-
Executes or prepares the script template content based on its attributes and the
softrunflag.Parameters ---------- protected : bool, optional If <code>True</code> (default), variable evaluation uses a protected environment, safeguarding global definitions and system attributes from modification during execution. softrun : bool, optional Determines if the script is evaluated in a preliminary mode: - If <code>True</code>, returns the script content without full evaluation, allowing for a preview or an initial capture of local definitions without substituting variables. - If <code>False</code> (default), processes the script with full evaluation, applying all substitutions defined in <code>definitions</code>. USER : lambdaScriptdata, optional A <code><a title="dscript.lambdaScriptdata" href="#dscript.lambdaScriptdata">lambdaScriptdata</a></code> instance with user-provided definitions, which supplement or override template-level definitions during execution. Returns ------- str The processed or original script content as a single string. - Returns an empty string if <code>facultative</code> is set to <code>True</code>, or if <code>condition</code> is <code>False</code> and does not meet any specified evaluation requirements. Notes ----- - <code>facultative</code>: If <code>True</code>, the method returns an empty string, effectively skipping execution of the content. - <code>condition</code>: If specified, this attribute is evaluated to decide whether the content should be processed (default <code>True</code> if <code>condition</code> is <code>None</code>). If <code>condeval</code> is <code>True</code>, the condition itself undergoes evaluation using Python's <code>eval</code>. - <code>eval</code>: If <code>True</code> and <code>softrun</code> is <code>False</code>, performs evaluation for variable substitution on the content lines, applying transformations based on both <code>definitions</code> and <code>USER</code> definitions if provided. This allows variables to be dynamically substituted within the script content. Processing Workflow ------------------- 1. **Facultative Check**: If the <code>facultative</code> attribute is <code>True</code>, immediately returns an empty string. 2. **Condition Check**: If a <code>condition</code> is specified, it is evaluated: - If <code>condeval</code> is <code>True</code>, the condition undergoes evaluation (using <code>eval</code>). - If the evaluated <code>condition</code> is <code>False</code>, returns an empty string, skipping execution. 3. **Execution Based on <code>softrun</code>**: - If <code>softrun</code> is <code>True</code>, returns the original content without variable substitution, providing a preview. - If <code>softrun</code> is <code>False</code>, evaluates the content lines based on <code>definitions</code> and <code>USER</code> if applicable. 4. **Variable Formatting**: During evaluation, lists and tuples are formatted into strings with prefixed comments, enhancing readability and handling complex data structures directly in the script. Example ------- >>> template = ScriptTemplate( ... content=["variable x equal ${var1}", "print 'Value of x is ${var1}'"], ... definitions=lambdaScriptdata(var1=10) ... ) >>> template.do() "variable x equal 10print 'Value of x is 10'"
Expand source code
def do(self, protected=True, softrun=False, USER=lambdaScriptdata()): """ Executes or prepares the script template content based on its attributes and the `softrun` flag. Parameters ---------- protected : bool, optional If `True` (default), variable evaluation uses a protected environment, safeguarding global definitions and system attributes from modification during execution. softrun : bool, optional Determines if the script is evaluated in a preliminary mode: - If `True`, returns the script content without full evaluation, allowing for a preview or an initial capture of local definitions without substituting variables. - If `False` (default), processes the script with full evaluation, applying all substitutions defined in `definitions`. USER : lambdaScriptdata, optional A `lambdaScriptdata` instance with user-provided definitions, which supplement or override template-level definitions during execution. Returns ------- str The processed or original script content as a single string. - Returns an empty string if `facultative` is set to `True`, or if `condition` is `False` and does not meet any specified evaluation requirements. Notes ----- - `facultative`: If `True`, the method returns an empty string, effectively skipping execution of the content. - `condition`: If specified, this attribute is evaluated to decide whether the content should be processed (default `True` if `condition` is `None`). If `condeval` is `True`, the condition itself undergoes evaluation using Python's `eval`. - `eval`: If `True` and `softrun` is `False`, performs evaluation for variable substitution on the content lines, applying transformations based on both `definitions` and `USER` definitions if provided. This allows variables to be dynamically substituted within the script content. Processing Workflow ------------------- 1. **Facultative Check**: If the `facultative` attribute is `True`, immediately returns an empty string. 2. **Condition Check**: If a `condition` is specified, it is evaluated: - If `condeval` is `True`, the condition undergoes evaluation (using `eval`). - If the evaluated `condition` is `False`, returns an empty string, skipping execution. 3. **Execution Based on `softrun`**: - If `softrun` is `True`, returns the original content without variable substitution, providing a preview. - If `softrun` is `False`, evaluates the content lines based on `definitions` and `USER` if applicable. 4. **Variable Formatting**: During evaluation, lists and tuples are formatted into strings with prefixed comments, enhancing readability and handling complex data structures directly in the script. Example ------- >>> template = ScriptTemplate( ... content=["variable x equal ${var1}", "print 'Value of x is ${var1}'"], ... definitions=lambdaScriptdata(var1=10) ... ) >>> template.do() "variable x equal 10\nprint 'Value of x is 10'" """ # If 'facultative' is set to True, return an empty string immediately if self.attributes.get("facultative", False): return "" # Evaluate condition if present cond = True if self.attributes.get("condition") is not None: condition_expr = self.definitions.formateval(self.attributes["condition"], protected) cond = eval(condition_expr) if self.attributes.get("condeval", False) else condition_expr # Process based on softrun flag if softrun: return "\n".join(self.content) if cond else "" # Perform full processing when softrun is False if cond: if self.attributes.get("eval", False): #return "\n".join([self.definitions.formateval(line, protected) for line in self.content]) inputs = self.definitions + USER for k in inputs.keys(): if isinstance(inputs.getattr(k),list): inputs.setattr(k,"% "+span(inputs.getattr(k))) elif isinstance(inputs.getattr(k),tuple): inputs.setattr(k,"% "+span(inputs.getattr(k),sep=",")) return "\n".join([inputs.formateval(line, protected) for line in self.content]) else: return "\n".join(self.content) return "" def is_variable_defined(self, var_name)-
Checks if a specified variable is defined (either as a default value or a set value).
Parameters:
var_name : str The name of the variable to check.
Returns:
bool True if the variable is defined (either as a default or a set value), False if not.
Raises:
ValueError If
var_nameis invalid or undefined in the template.Expand source code
def is_variable_defined(self, var_name): """ Checks if a specified variable is defined (either as a default value or a set value). Parameters: ----------- var_name : str The name of the variable to check. Returns: -------- bool True if the variable is defined (either as a default or a set value), False if not. Raises: ------- ValueError If `var_name` is invalid or undefined in the template. """ if not isinstance(var_name, str): raise ValueError("Variable name must be a string.") variable_status = self.check_variables(verbose=False, seteval=False) # Check if the variable is in default values or set values if var_name in variable_status["defaultvalues"] or var_name in variable_status["setvalues"]: return True else: raise ValueError(f"Variable '{var_name}' is undefined in the template.") def is_variable_set_value_only(self, var_name)-
Checks if a specified variable is defined and set to a specific (non-default) value.
Parameters:
var_name : str The name of the variable to check.
Returns:
bool True if the variable is defined with a set (non-default) value, False if not.
Raises:
ValueError If
var_nameis invalid or not defined in the template.Expand source code
def is_variable_set_value_only(self, var_name): """ Checks if a specified variable is defined and set to a specific (non-default) value. Parameters: ----------- var_name : str The name of the variable to check. Returns: -------- bool True if the variable is defined with a set (non-default) value, False if not. Raises: ------- ValueError If `var_name` is invalid or not defined in the template. """ if not isinstance(var_name, str): raise ValueError("Variable name must be a string.") variable_status = self.check_variables(verbose=False, seteval=False) # Check if the variable is in set values only (not default values) if var_name in variable_status["setvalues"]: return True elif var_name in variable_status["defaultvalues"]: return False # Defined but only at its default value else: raise ValueError(f"Variable '{var_name}' is undefined in the template.") def refreshvar(self, globaldefinitions=Lambda Script Parameters (LSD object) with 0 parameter definitions)-
Detects variables in the content and adds them to definitions if needed. This method ensures that variables like ${varname} are correctly detected and added to the definitions if they are missing.
use globaldefinitions to add a list of global variables/definitions
Expand source code
def refreshvar(self,globaldefinitions = lambdaScriptdata()): """ Detects variables in the content and adds them to definitions if needed. This method ensures that variables like ${varname} are correctly detected and added to the definitions if they are missing. use globaldefinitions to add a list of global variables/definitions """ if self.attributes["detectvar"] and isinstance(self.content, list) and self.definitions: variables = self.detect_variables() for varname in variables: if (varname not in self.definitions) and (varname not in globaldefinitions): self.definitions.setattr(varname, "${" + varname + "}")
class dscript (name=None, SECTIONS=['DYNAMIC'], section=0, position=None, role='dscript instance', description='dynamic script', userid='dscript', version=None, license=None, email=None, printflag=False, verbose=False, verbosity=None, **userdefinitions)-
dscript: A Dynamic Script Management Class
The
dscriptclass is designed to manage and dynamically generate multiple lines/items of a script, typically for use with LAMMPS or similar simulation tools. Each line in the script is represented as aScriptTemplateobject, and the class provides tools to easily manipulate, concatenate, and execute these script lines/items.Key Features:
- Dynamic Script Generation: Define and manage script lines/items dynamically, with variables that can be substituted at runtime.
- Conditional Execution: Add conditions to script lines/items so they are only included if certain criteria are met.
- Script Concatenation: Combine multiple script objects while maintaining control over variable precedence and script structure.
- User-Friendly Access: Easily access and manipulate script lines/items using familiar Python constructs like indexing and iteration.
Practical Use Cases:
- Custom LAMMPS Scripts: Generate complex simulation scripts with varying parameters based on dynamic conditions.
- Automation: Automate the creation of scripts for batch processing, simulations, or other repetitive tasks.
- Script Management: Manage and version-control different script sections and configurations easily.
Methods:
init(self, name=None): Initializes a new
dscriptobject with an optional name.getitem(self, key): Retrieves a script line by its key. If a list of keys is provided, returns a new
dscriptobject with lines/items reordered accordingly.setitem(self, key, value): Adds or updates a script line. If the value is an empty list, the corresponding script line is removed.
delitem(self, key): Deletes a script line by its key.
contains(self, key): Checks if a key exists in the script. Allows usage of
inkeyword.iter(self): Returns an iterator over the script lines/items, allowing for easy iteration through all lines/items in the
TEMPLATE.len(self): Returns the number of script lines/items currently stored in the
TEMPLATE.keys(self): Returns the keys of the
TEMPLATEdictionary.values(self): Returns the
ScriptTemplateobjects stored as values in theTEMPLATE.items(self): Returns the keys and
ScriptTemplateobjects from theTEMPLATEas pairs.str(self): Returns a human-readable summary of the script, including the number of lines/items and total attributes. Shortcut:
str(S).repr(self): Provides a detailed string representation of the entire
dscriptobject, including all script lines/items and their attributes. Useful for debugging.reorder(self, order): Reorders the script lines/items based on a given list of indices, creating a new
dscriptobject with the reordered lines/items.get_content_by_index(self, index, do=True, protected=True): Returns the processed content of the script line at the specified index, with variables substituted based on the definitions and conditions applied.
get_attributes_by_index(self, index): Returns the attributes of the script line at the specified index.
add_dynamic_script(self, key, content="", definitions=None, verbose=None, **USER): Add a dynamic script step to the
dscriptobject.createEmptyVariables(self, vars): Creates new variables in
DEFINITIONSif they do not already exist. Accepts a single variable name or a list of variable names.do(self, printflag=None, verbose=None): Executes all script lines/items in the
TEMPLATE, concatenating the results, and handling variable substitution. Returns the full script as a string.script(self, **userdefinitions): Generates a
lamdaScriptobject from the currentdscriptobject, applying any additional user definitions provided.pipescript(self, printflag=None, verbose=None, **USER): Returns a
pipescriptobject by combining script objects for all keys in theTEMPLATE. Each key inTEMPLATEis handled separately, and the resulting scripts are combined using the|operator.save(self, filename=None, foldername=None, overwrite=False): Saves the current script instance to a text file in a structured format. Includes metadata, global parameters, definitions, templates, and attributes.
write(scriptcontent, filename=None, foldername=None, overwrite=False): Writes the provided script content to a specified file in a given folder, with a header added if necessary, ensuring the correct file format.
load(cls, filename, foldername=None, numerickeys=True): Loads a script instance from a text file, restoring the content, definitions, templates, and attributes. Handles parsing and variable substitution based on the structure of the file.
parsesyntax(cls, content, numerickeys=True): Parses a script instance from a string input, restoring the content, definitions, templates, and attributes. Handles parsing and variable substitution based on the structure of the provided string, ensuring the correct format and key conversions when necessary.
Example:
Create a dscript object
R = dscript(name="MyScript")
Define global variables (DEFINITIONS)
R.DEFINITIONS.dimension = 3 R.DEFINITIONS.units = "$si"
Add script lines
R[0] = "dimension ${dimension}" R[1] = "units ${units}"
Generate and print the script
sR = R.script() print(sR.do())
Attributes:
name : str The name of the script, useful for identification. TEMPLATE : dict A dictionary storing script lines/items, with keys to identify each line. DEFINITIONS : lambdaScriptdata Stores the variables and parameters used within the script lines/items.
Initializes a new
dscriptobject.The constructor sets up a new
dscriptobject, which allows you to define and manage a script composed of multiple lines/items. Each line is stored in theTEMPLATEdictionary, and variables used in the script are stored inDEFINITIONS.Parameters:
name : str, optional The name of the script. If no name is provided, a random name will be generated automatically. The name is useful for identifying the script, especially when managing multiple scripts.
Example:
Create a dscript object with a specific name
R = dscript(name="ExampleScript")
Or create a dscript object with a random name
R = dscript()
After initialization, you can start adding script lines/items and defining variables.
Expand source code
class dscript: """ dscript: A Dynamic Script Management Class The `dscript` class is designed to manage and dynamically generate multiple lines/items of a script, typically for use with LAMMPS or similar simulation tools. Each line in the script is represented as a `ScriptTemplate` object, and the class provides tools to easily manipulate, concatenate, and execute these script lines/items. Key Features: ------------- - **Dynamic Script Generation**: Define and manage script lines/items dynamically, with variables that can be substituted at runtime. - **Conditional Execution**: Add conditions to script lines/items so they are only included if certain criteria are met. - **Script Concatenation**: Combine multiple script objects while maintaining control over variable precedence and script structure. - **User-Friendly Access**: Easily access and manipulate script lines/items using familiar Python constructs like indexing and iteration. Practical Use Cases: -------------------- - **Custom LAMMPS Scripts**: Generate complex simulation scripts with varying parameters based on dynamic conditions. - **Automation**: Automate the creation of scripts for batch processing, simulations, or other repetitive tasks. - **Script Management**: Manage and version-control different script sections and configurations easily. Methods: -------- __init__(self, name=None): Initializes a new `dscript` object with an optional name. __getitem__(self, key): Retrieves a script line by its key. If a list of keys is provided, returns a new `dscript` object with lines/items reordered accordingly. __setitem__(self, key, value): Adds or updates a script line. If the value is an empty list, the corresponding script line is removed. __delitem__(self, key): Deletes a script line by its key. __contains__(self, key): Checks if a key exists in the script. Allows usage of `in` keyword. __iter__(self): Returns an iterator over the script lines/items, allowing for easy iteration through all lines/items in the `TEMPLATE`. __len__(self): Returns the number of script lines/items currently stored in the `TEMPLATE`. keys(self): Returns the keys of the `TEMPLATE` dictionary. values(self): Returns the `ScriptTemplate` objects stored as values in the `TEMPLATE`. items(self): Returns the keys and `ScriptTemplate` objects from the `TEMPLATE` as pairs. __str__(self): Returns a human-readable summary of the script, including the number of lines/items and total attributes. Shortcut: `str(S)`. __repr__(self): Provides a detailed string representation of the entire `dscript` object, including all script lines/items and their attributes. Useful for debugging. reorder(self, order): Reorders the script lines/items based on a given list of indices, creating a new `dscript` object with the reordered lines/items. get_content_by_index(self, index, do=True, protected=True): Returns the processed content of the script line at the specified index, with variables substituted based on the definitions and conditions applied. get_attributes_by_index(self, index): Returns the attributes of the script line at the specified index. add_dynamic_script(self, key, content="", definitions=None, verbose=None, **USER): Add a dynamic script step to the `dscript` object. createEmptyVariables(self, vars): Creates new variables in `DEFINITIONS` if they do not already exist. Accepts a single variable name or a list of variable names. do(self, printflag=None, verbose=None): Executes all script lines/items in the `TEMPLATE`, concatenating the results, and handling variable substitution. Returns the full script as a string. script(self, **userdefinitions): Generates a `lamdaScript` object from the current `dscript` object, applying any additional user definitions provided. pipescript(self, printflag=None, verbose=None, **USER): Returns a `pipescript` object by combining script objects for all keys in the `TEMPLATE`. Each key in `TEMPLATE` is handled separately, and the resulting scripts are combined using the `|` operator. save(self, filename=None, foldername=None, overwrite=False): Saves the current script instance to a text file in a structured format. Includes metadata, global parameters, definitions, templates, and attributes. write(scriptcontent, filename=None, foldername=None, overwrite=False): Writes the provided script content to a specified file in a given folder, with a header added if necessary, ensuring the correct file format. load(cls, filename, foldername=None, numerickeys=True): Loads a script instance from a text file, restoring the content, definitions, templates, and attributes. Handles parsing and variable substitution based on the structure of the file. parsesyntax(cls, content, numerickeys=True): Parses a script instance from a string input, restoring the content, definitions, templates, and attributes. Handles parsing and variable substitution based on the structure of the provided string, ensuring the correct format and key conversions when necessary. Example: -------- # Create a dscript object R = dscript(name="MyScript") # Define global variables (DEFINITIONS) R.DEFINITIONS.dimension = 3 R.DEFINITIONS.units = "$si" # Add script lines R[0] = "dimension ${dimension}" R[1] = "units ${units}" # Generate and print the script sR = R.script() print(sR.do()) Attributes: ----------- name : str The name of the script, useful for identification. TEMPLATE : dict A dictionary storing script lines/items, with keys to identify each line. DEFINITIONS : lambdaScriptdata Stores the variables and parameters used within the script lines/items. """ # Class variable to list attributes that should not be treated as TEMPLATE entries construction_attributes = {'name', 'SECTIONS', 'section', 'position', 'role', 'description', 'userid', 'verbose', 'printflag', 'DEFINITIONS', 'TEMPLATE', 'version','license','email' } def __init__(self, name=None, SECTIONS = ["DYNAMIC"], section = 0, position = None, role = "dscript instance", description = "dynamic script", userid = "dscript", version = None, license = None, email = None, printflag = False, verbose = False, verbosity = None, **userdefinitions ): """ Initializes a new `dscript` object. The constructor sets up a new `dscript` object, which allows you to define and manage a script composed of multiple lines/items. Each line is stored in the `TEMPLATE` dictionary, and variables used in the script are stored in `DEFINITIONS`. Parameters: ----------- name : str, optional The name of the script. If no name is provided, a random name will be generated automatically. The name is useful for identifying the script, especially when managing multiple scripts. Example: -------- # Create a dscript object with a specific name R = dscript(name="ExampleScript") # Or create a dscript object with a random name R = dscript() After initialization, you can start adding script lines/items and defining variables. """ if name is None: self.name = autoname() else: self.name = name if (version is None) or (license is None) or (email is None): metadata = get_metadata() # retrieve all metadata version = metadata["version"] if version is None else version license = metadata["license"] if license is None else license email = metadata["email"] if email is None else email self.SECTIONS = SECTIONS if isinstance(SECTIONS,(list,tuple)) else [SECTIONS] self.section = section self.position = position if position is not None else 0 self.role = role self.description = description self.userid = userid self.version = version self.license = license self.email = email self.printflag = printflag self.verbose = verbose if verbosity is None else verbosity>0 self.verbosity = 0 if not verbose else verbosity self.DEFINITIONS = lambdaScriptdata(**userdefinitions) self.TEMPLATE = {} def __getattr__(self, attr): # During construction phase, we only access the predefined attributes if 'TEMPLATE' not in self.__dict__: if attr in self.__dict__: return self.__dict__[attr] raise AttributeError(f"'dscript' object has no attribute '{attr}'") # If TEMPLATE is initialized and attr is in TEMPLATE, return the corresponding ScriptTemplate entry if attr in self.TEMPLATE: return self.TEMPLATE[attr] # Fall back to internal __dict__ attributes if not in TEMPLATE if attr in self.__dict__: return self.__dict__[attr] raise AttributeError(f"'dscript' object has no attribute '{attr}'") def __setattr__(self, attr, value): # Handle internal attributes during the construction phase if 'TEMPLATE' not in self.__dict__: self.__dict__[attr] = value return # Handle construction attributes separately (name, TEMPLATE, USER) if attr in self.construction_attributes: self.__dict__[attr] = value # If TEMPLATE exists, and the attribute is intended for it, update TEMPLATE elif 'TEMPLATE' in self.__dict__: # Convert the value to a ScriptTemplate if needed, and update the template if attr in self.TEMPLATE: # Modify the existing ScriptTemplate object for this attribute if isinstance(value, str): self.TEMPLATE[attr].content = value elif isinstance(value, dict): self.TEMPLATE[attr].attributes.update(value) else: # Create a new entry if it does not exist self.TEMPLATE[attr] = ScriptTemplate(content=value,definitions=self.DEFINITIONS,verbose=self.verbose,userid=attr) else: # Default to internal attributes self.__dict__[attr] = value def __getitem__(self, key): """ Implements index-based retrieval, slicing, or reordering for dscript objects. Parameters: ----------- key : int, slice, list, or str - If `key` is an int, returns the corresponding template at that index. Supports negative indices to retrieve templates from the end. - If `key` is a slice, returns a new `dscript` object containing the templates in the specified range. - If `key` is a list, reorders the TEMPLATE based on the list of indices or keys. - If `key` is a string, treats it as a key and returns the corresponding template. Returns: -------- dscript or ScriptTemplate : Depending on the type of key, returns either a new dscript object (for slicing or reordering) or a ScriptTemplate object (for direct key access). """ # Handle list-based reordering if isinstance(key, list): return self.reorder(key) # Handle slicing elif isinstance(key, slice): new_dscript = dscript(name=f"{self.name}_slice_{key.start}_{key.stop}") keys = list(self.TEMPLATE.keys()) for k in keys[key]: new_dscript.TEMPLATE[k] = self.TEMPLATE[k] return new_dscript # Handle integer indexing with support for negative indices elif isinstance(key, int): keys = list(self.TEMPLATE.keys()) if key in self.TEMPLATE: # Check if the integer exists as a key return self.TEMPLATE[key] if key < 0: # Support negative indices key += len(keys) if key < 0 or key >= len(keys): # Check for index out of range raise IndexError(f"Index {key - len(keys)} is out of range") # Return the template corresponding to the integer index return self.TEMPLATE[keys[key]] # Handle key-based access (string keys) elif isinstance(key, str): if key in self.TEMPLATE: return self.TEMPLATE[key] raise KeyError(f"Key '{key}' does not exist in TEMPLATE.") def __setitem__(self, key, value): if (value == []) or (value is None): # If the value is an empty list, delete the corresponding key del self.TEMPLATE[key] else: # Otherwise, set the key to the new ScriptTemplate self.TEMPLATE[key] = ScriptTemplate(value, definitions=self.DEFINITIONS, verbose=self.verbose, userid=key) def __delitem__(self, key): del self.TEMPLATE[key] def __iter__(self): return iter(self.TEMPLATE.items()) # def keys(self): # return self.TEMPLATE.keys() # def values(self): # return (s.content for s in self.TEMPLATE.values()) def __contains__(self, key): return key in self.TEMPLATE def __len__(self): return len(self.TEMPLATE) def items(self): return ((key, s.content) for key, s in self.TEMPLATE.items()) def __str__(self): num_TEMPLATE = len(self.TEMPLATE) total_attributes = sum(len(s.attributes) for s in self.TEMPLATE.values()) return f"{num_TEMPLATE} TEMPLATE, {total_attributes} attributes" def __repr__(self): """Representation of dscript object with additional properties.""" repr_str = f"dscript object ({self.name})\n" # Add description, role, and version at the beginning repr_str += f"id: {self.userid}\n" if self.userid else "" repr_str += f"Descr: {self.description}\n" if self.description else "" repr_str += f"Role: {self.role} (v. {self.version})\n" repr_str += f'SECTIONS {span(self.SECTIONS,",","[","]")} | index: {self.section} | position: {self.position}\n' repr_str += f"\n\n\twith {len(self.TEMPLATE)} TEMPLATE" repr_str += "s" if len(self.TEMPLATE)>1 else "" repr_str += f" (with {len(self.DEFINITIONS)} DEFINITIONS)\n\n" # Add TEMPLATE information c = 0 for k, s in self.TEMPLATE.items(): head = f"| idx: {c} | key: {k} |" dashes = (50 - len(head)) // 2 repr_str += "-" * 50 + "\n" repr_str += f"{'<' * dashes}{head}{'>' * dashes}\n{repr(s)}\n" c += 1 return repr_str def keys(self): """Return the keys of the TEMPLATE.""" return self.TEMPLATE.keys() def values(self): """Return the ScriptTemplate objects in TEMPLATE.""" return self.TEMPLATE.values() def reorder(self, order): """Reorder the TEMPLATE lines according to a list of indices.""" # Get the original items as a list of (key, value) pairs original_items = list(self.TEMPLATE.items()) # Create a new dictionary with reordered scripts, preserving original keys new_scripts = {original_items[i][0]: original_items[i][1] for i in order} # Create a new dscript object with reordered scripts reordered_script = dscript() reordered_script.TEMPLATE = new_scripts return reordered_script def get_content_by_index(self, index, do=True, protected=True): """ Returns the content of the ScriptTemplate at the specified index. Parameters: ----------- index : int The index of the template in the TEMPLATE dictionary. do : bool, optional (default=True) If True, the content will be processed based on conditions and evaluation flags. protected : bool, optional (default=True) Controls whether variable evaluation is protected (e.g., prevents overwriting certain definitions). Returns: -------- str or list of str The content of the template after processing, or an empty string if conditions or evaluation flags block it. """ key = list(self.TEMPLATE.keys())[index] s = self.TEMPLATE[key].content att = self.TEMPLATE[key].attributes # Return an empty string if the facultative attribute is True and do is True if att["facultative"] and do: return "" # Evaluate the condition (if any) if att["condition"] is not None: cond = eval(self.DEFINITIONS.formateval(att["condition"], protected)) else: cond = True # If the condition is met, process the content if cond: # Apply formateval only if the eval attribute is True and do is True if att["eval"] and do: if isinstance(s, list): # Apply formateval to each item in the list if s is a list return [self.DEFINITIONS.formateval(line, protected) for line in s] else: # Apply formateval to the single string content return self.DEFINITIONS.formateval(s, protected) else: return s # Return the raw content if no evaluation is needed elif do: return "" # Return an empty string if the condition is not met and do is True else: return s # Return the raw content if do is False def get_attributes_by_index(self, index): """ Returns the attributes of the ScriptTemplate at the specified index.""" key = list(self.TEMPLATE.keys())[index] return self.TEMPLATE[key].attributes def __add__(self, other): """ Concatenates two dscript objects, creating a new dscript object that combines the TEMPLATE and DEFINITIONS of both. This operation avoids deep copying of definitions by creating a new lambdaScriptdata instance from the definitions. Parameters: ----------- other : dscript The other dscript object to concatenate with the current one. Returns: -------- result : dscript A new dscript object with the concatenated TEMPLATE and merged DEFINITIONS. Raises: ------- TypeError: If the other object is not an instance of dscript, script, pipescript """ if isinstance(other, dscript): # Step 1: Merge global DEFINITIONS from both self and other result = dscript(name=self.name+"+"+other.name,**(self.DEFINITIONS + other.DEFINITIONS)) # Step 2: Start by copying the TEMPLATE from self (no deepcopy for performance reasons) result.TEMPLATE = self.TEMPLATE.copy() # Step 3: Ensure that the local definitions for `self.TEMPLATE` are properly copied for key, value in self.TEMPLATE.items(): result.TEMPLATE[key].definitions = lambdaScriptdata(**self.TEMPLATE[key].definitions) # Step 4: Track the next available index if keys need to be created next_index = len(result.TEMPLATE) # Step 5: Add items from the other dscript object, updating or generating new keys as needed for key, value in other.TEMPLATE.items(): if key in result.TEMPLATE: # If key already exists in result, assign a new unique index while next_index in result.TEMPLATE: next_index += 1 new_key = next_index else: # Use the original key if it doesn't already exist new_key = key # Copy the TEMPLATE's content and definitions from `other` result.TEMPLATE[new_key] = value # Merge the local TEMPLATE definitions from `other` result.TEMPLATE[new_key].definitions = lambdaScriptdata(**other.TEMPLATE[key].definitions) return result elif isinstance(other,script): return self.script() + script elif isinstance(other,pipescript): return self.pipescript() | script else: raise TypeError(f"Cannot concatenate 'dscript' with '{type(other).__name__}'") def __call__(self, *keys): """ Extracts subobjects from the dscript based on the provided keys. Parameters: ----------- *keys : one or more keys that correspond to the `TEMPLATE` entries. Returns: -------- A new `dscript` object that contains only the selected script lines/items, along with the relevant definitions and attributes from the original object. """ # Create a new dscript object to store the extracted sub-objects result = dscript(name=f"{self.name}_subobject") # Copy the TEMPLATE entries corresponding to the provided keys for key in keys: if key in self.TEMPLATE: result.TEMPLATE[key] = self.TEMPLATE[key] else: raise KeyError(f"Key '{key}' not found in TEMPLATE.") # Copy the DEFINITIONS from the current object result.DEFINITIONS = copy.deepcopy(self.DEFINITIONS) # Copy other relevant attributes result.SECTIONS = self.SECTIONS[:] result.section = self.section result.position = self.position result.role = self.role result.description = self.description result.userid = self.userid result.version = self.version result.verbose = self.verbose result.printflag = self.printflag return result def createEmptyVariables(self, vars): """ Creates empty variables in DEFINITIONS if they don't already exist. Parameters: ----------- vars : str or list of str The variable name or list of variable names to be created in DEFINITIONS. """ if isinstance(vars, str): vars = [vars] # Convert single variable name to list for uniform processing for varname in vars: if varname not in self.DEFINITIONS: self.DEFINITIONS.setattr(varname,"${" + varname + "}") def do(self, printflag=None, verbose=None, softrun=False, return_definitions=False,comment_chars="#%", **USER): """ Executes or previews all `ScriptTemplate` instances in `TEMPLATE`, concatenating their processed content. Allows for optional headers and footers based on verbosity settings, and offers a preliminary preview mode with `softrun`. Accumulates definitions across all templates if `return_definitions=True`. Parameters ---------- printflag : bool, optional If `True`, enables print output during execution. Defaults to the instance's print flag if `None`. verbose : bool, optional If `True`, includes headers and footers in the output, providing additional detail. Defaults to the instance's verbosity setting if `None`. softrun : bool, optional If `True`, executes the script in a preliminary mode: - Bypasses full variable substitution for a preview of the content, useful for validating structure. - If `False` (default), performs full processing, including variable substitutions and evaluations. return_definitions : bool, optional If `True`, returns a tuple where the second element contains accumulated definitions from all templates. If `False` (default), returns only the concatenated output. comment_chars : str, optional (default: "#%") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. **USER : keyword arguments Allows for the provision of additional user-defined definitions, where each keyword represents a definition key and the associated value represents the definition's content. These definitions can override or supplement template-level definitions during execution. Returns ------- str or tuple - If `return_definitions=False`, returns the concatenated output of all `ScriptTemplate` instances, with optional headers, footers, and execution summary based on verbosity. - If `return_definitions=True`, returns a tuple of (`output`, `accumulated_definitions`), where `accumulated_definitions` contains all definitions used across templates. Notes ----- - Each `ScriptTemplate` in `TEMPLATE` is processed individually using its own `do()` method. - The `softrun` mode provides a preliminary content preview without full variable substitution, helpful for inspecting the script structure or gathering local definitions. - When `verbose` is enabled, the method includes detailed headers, footers, and a summary of processed and ignored items, providing insight into the script's construction and variable usage. - Accumulated definitions from each `ScriptTemplate` are combined if `return_definitions=True`, which can be useful for tracking all variables and definitions applied across the templates. Example ------- >>> dscript_instance = dscript(name="ExampleScript") >>> dscript_instance.TEMPLATE[0] = ScriptTemplate( ... content=["units ${units}", "boundary ${boundary}"], ... definitions=lambdaScriptdata(units="lj", boundary="p p p"), ... attributes={'eval': True} ... ) >>> dscript_instance.do(verbose=True, units="real") # Output: # -------------- # TEMPLATE "ExampleScript" # -------------- units real boundary p p p # ---> Total items: 2 - Ignored items: 0 """ printflag = self.printflag if printflag is None else printflag verbose = self.verbose if verbose is None else verbose header = f"# --------------[ TEMPLATE \"{self.name}\" ]--------------" if verbose else "" footer = "# --------------------------------------------" if verbose else "" # Initialize output, counters, and optional definitions accumulator output = [header] non_empty_lines = 0 ignored_lines = 0 accumulated_definitions = lambdaScriptdata() if return_definitions else None for key, template in self.TEMPLATE.items(): # Process each template with softrun if enabled, otherwise use full processing result = template.do(softrun=softrun,USER=lambdaScriptdata(**USER)) if result: # Apply comment removal based on verbosity final_result = result if verbose else remove_comments(result,comment_chars=comment_chars) if final_result or verbose: output.append(final_result) non_empty_lines += 1 else: ignored_lines += 1 # Accumulate definitions if return_definitions is enabled if return_definitions: accumulated_definitions += template.definitions else: ignored_lines += 1 # Add footer summary if verbose nel_word = 'items' if non_empty_lines > 1 else 'item' il_word = 'items' if ignored_lines > 1 else 'item' footer += f"\n# ---> Total {nel_word}: {non_empty_lines} - Ignored {il_word}: {ignored_lines}" if verbose else "" output.append(footer) # Concatenate output and determine return type based on return_definitions output_content = "\n".join(output) return (output_content, accumulated_definitions) if return_definitions else output_content def script(self,printflag=None, verbose=None, verbosity=None, **USER): """ returns the corresponding script """ printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity return lamdaScript(self,persistentfile=True, persistentfolder=None, printflag=printflag, verbose=verbose, **USER) def pipescript(self, *keys, printflag=None, verbose=None, verbosity=None, **USER): """ Returns a pipescript object by combining script objects corresponding to the given keys. Parameters: ----------- *keys : one or more keys that correspond to the `TEMPLATE` entries. printflag : bool, optional Whether to enable printing of additional information. verbose : bool, optional Whether to run in verbose mode for debugging or detailed output. **USER : dict, optional Additional user-defined variables to pass into the script. Returns: -------- A `pipescript` object that combines the script objects generated from the selected dscript subobjects. """ # Start with an empty pipescript # combined_pipescript = None # # Iterate over the provided keys to extract corresponding subobjects # for key in keys: # # Extract the dscript subobject for the given key # sub_dscript = self(key) # # Convert the dscript subobject to a script object, passing USER, printflag, and verbose # script_obj = sub_dscript.script(printflag=printflag, verbose=verbose, **USER) # # Combine script objects into a pipescript object # if combined_pipescript is None: # combined_pipescript = pipescript(script_obj) # Initialize pipescript # else: # combined_pipescript = combined_pipescript | script_obj # Use pipe operator # if combined_pipescript is None: # ValueError('The conversion to pipescript from {type{self}} falled') # return combined_pipescript printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity # Loop over all keys in TEMPLATE and combine them combined_pipescript = None for key in self.keys(): # Create a new dscript object with only the current key in TEMPLATE focused_dscript = dscript(name=f"{self.name}:{key}") focused_dscript.TEMPLATE[key] = self.TEMPLATE[key] focused_dscript.TEMPLATE[key].definitions = scriptdata(**self.TEMPLATE[key].definitions) focused_dscript.DEFINITIONS = scriptdata(**self.DEFINITIONS) focused_dscript.SECTIONS = self.SECTIONS[:] focused_dscript.section = self.section focused_dscript.position = self.position focused_dscript.role = self.role focused_dscript.description = self.description focused_dscript.userid = self.userid focused_dscript.version = self.version focused_dscript.verbose = verbose focused_dscript.printflag = printflag # Convert the focused dscript object to a script object script_obj = focused_dscript.script(printflag=printflag, verbose=verbose, **USER) # Combine the script objects into a pipescript object using the pipe operator if combined_pipescript is None: combined_pipescript = pipescript(script_obj) # Initialize pipescript else: combined_pipescript = combined_pipescript | pipescript(script_obj) # Use pipe operator if combined_pipescript is None: ValueError('The conversion to pipescript from {type{self}} falled') return combined_pipescript @staticmethod def header(name=None, verbose=True, verbosity=None, style=2, filepath=None, version=None, license=None, email=None): """ Generate a formatted header for the DSCRIPT file. ### Parameters: name (str, optional): The name of the script. If None, "Unnamed" is used. verbose (bool, optional): Whether to include the header. Default is True. verbosity (int, optional): Verbosity level. Overrides `verbose` if specified. style (int, optional): ASCII style for the header (default=2). filepath (str, optional): Full path to the file being saved. If None, the line mentioning the file path is excluded. version (str, optional): DSCRIPT version. If None, it is omitted from the header. license (str, optional): License type. If None, it is omitted from the header. email (str, optional): Contact email. If None, it is omitted from the header. ### Returns: str: A formatted string representing the script's metadata and initialization details. Returns an empty string if `verbose` is False. ### The header includes: - DSCRIPT version, license, and contact email, if provided. - The name of the script. - Filepath, if provided. - Information on where and when the script was generated. ### Notes: - If `verbosity` is specified, it overrides `verbose`. - Omits metadata lines if `version`, `license`, or `email` are not provided. """ # Resolve verbosity verbose = verbosity > 0 if verbosity is not None else verbose if not verbose: return "" # Validate inputs if name is None: name = "Unnamed" # Prepare metadata line metadata = [] if version: metadata.append(f"v{version}") if license: metadata.append(f"License: {license}") if email: metadata.append(f"Email: {email}") metadata_line = " | ".join(metadata) # Prepare the framed header content lines = [] if metadata_line: lines.append(f"PIZZA.DSCRIPT FILE {metadata_line}") lines += [ "", f"Name: {name}", ] # Add the filepath line if filepath is not None if filepath: lines.append(f"Path: {filepath}") lines += [ "", f"Generated on: {getpass.getuser()}@{socket.gethostname()}:{os.getcwd()}", f"{datetime.datetime.now().strftime('%A, %B %d, %Y at %H:%M:%S')}", ] # Use the shared frame_header function to format the framed content return frame_header(lines, style=style) # Generator -- added on 2024-10-17 # ----------- def generator(self): """ Returns ------- STR generated code corresponding to dscript (using dscript syntax/language). """ return self.save(generatoronly=True) # Save Method -- added on 2024-09-04 # ----------- def save(self, filename=None, foldername=None, overwrite=False, generatoronly=False, onlyusedvariables=True): """ Save the current script instance to a text file. Parameters ---------- filename : str, optional The name of the file to save the script to. If not provided, `self.name` is used. The extension ".txt" is automatically appended if not included. foldername : str, optional The directory where the file will be saved. If not provided, it defaults to the system's temporary directory. If the filename does not include a full path, this folder will be used. overwrite : bool, default=True Whether to overwrite the file if it already exists. If set to False, an exception is raised if the file exists. generatoronly : bool, default=False If True, the method returns the generated content string without saving to a file. onlyusedvariables : bool, default=True If True, local definitions are only saved if they are used within the template content. If False, all local definitions are saved, regardless of whether they are referenced in the template. Raises ------ FileExistsError If the file already exists and `overwrite` is set to False. Notes ----- - The script is saved in a plain text format, and each section (global parameters, definitions, template, and attributes) is written in a structured format with appropriate comments. - If `self.name` is used as the filename, it must be a valid string that can serve as a file name. - The file structure follows the format: # DSCRIPT SAVE FILE # generated on YYYY-MM-DD on user@hostname # GLOBAL PARAMETERS { ... } # DEFINITIONS (number of definitions=...) key=value # TEMPLATES (number of items=...) key: template_content # ATTRIBUTES (number of items with explicit attributes=...) key:{attr1=value1, attr2=value2, ...} """ # At the beginning of the save method start_time = time.time() # Start the timer if not generatoronly: # Use self.name if filename is not provided if filename is None: filename = span(self.name, sep="\n") # Ensure the filename ends with '.txt' if not filename.endswith('.txt'): filename += '.txt' # Construct the full path if foldername in [None, ""]: # Handle cases where foldername is None or an empty string filepath = os.path.abspath(filename) else: filepath = os.path.join(foldername, filename) # Check if the file already exists, and raise an exception if it does and overwrite is False if os.path.exists(filepath) and not overwrite: raise FileExistsError(f"The file '{filepath}' already exists.") # Header with current date, username, and host header = "# DSCRIPT SAVE FILE\n" header += "\n"*2 if generatoronly: header += dscript.header(verbose=True,filepath='dynamic code generation (no file)', name = self.name, version=self.version, license=self.license, email=self.email) else: header += dscript.header(verbose=True,filepath=filepath, name = self.name, version=self.version, license=self.license, email=self.email) header += "\n"*2 # Global parameters in strict Python syntax global_params = "# GLOBAL PARAMETERS (8 parameters)\n" global_params += "{\n" global_params += f" SECTIONS = {self.SECTIONS},\n" global_params += f" section = {self.section},\n" global_params += f" position = {self.position},\n" global_params += f" role = {self.role!r},\n" global_params += f" description = {self.description!r},\n" global_params += f" userid = {self.userid!r},\n" global_params += f" version = {self.version},\n" global_params += f" verbose = {self.verbose}\n" global_params += "}\n" # Initialize definitions with self.DEFINITIONS allvars = self.DEFINITIONS # Temporary dictionary to track global variable information global_var_info = {} # Loop over each template item to detect and record variable usage and overrides for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()): # Detect variables used in this template used_variables = script_template.detect_variables() # Loop over each template item to detect and record variable usage and overrides for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()): # Detect variables used in this template used_variables = script_template.detect_variables() # Check each variable used in this template for var in used_variables: # Get global and local values for the variable global_value = getattr(allvars, var, None) local_value = getattr(script_template.definitions, var, None) is_global = var in allvars # Check if the variable originates in global space is_default = is_global and ( global_value is None or global_value == "" or global_value == f"${{{var}}}" ) # If the variable is not yet tracked, initialize its info if var not in global_var_info: global_var_info[var] = { "value": global_value, # Initial value from allvars if exists "updatedvalue": global_value,# Initial value from allvars if exists "is_default": is_default, # Check if it’s set to a default value "first_def": None, # First definition (to be updated later) "first_use": template_index, # First time the variable is used "first_val": global_value, "override_index": template_index if local_value is not None else None, # Set override if defined locally "is_global": is_global # Track if the variable originates as global } else: # Update `override_index` if the variable is defined locally and its value changes if local_value is not None: # Check if the local value differs from the tracked value in global_var_info current_value = global_var_info[var]["value"] if current_value != local_value: global_var_info[var]["override_index"] = template_index global_var_info[var]["updatedvalue"] = local_value # Update the tracked value # Second loop: Update `first_def` for all variables for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()): local_definitions = script_template.definitions.keys() for var in local_definitions: if var in global_var_info and global_var_info[var]["first_def"] is None: global_var_info[var]["first_def"] = template_index global_var_info[var]["first_val"] = getattr(script_template.definitions, var) # Filter global definitions based on usage, overrides, and first_def filtered_globals = { var: info for var, info in global_var_info.items() if (info["is_global"] or info["is_default"]) and (info["override_index"] is None) } # Generate the definitions output based on filtered globals definitions = f"\n# GLOBAL DEFINITIONS (number of definitions={len(filtered_globals)})\n" for var, info in filtered_globals.items(): if info["is_default"] and (info["first_def"]>info["first_use"] if info["first_def"] else True): definitions += f"{var} = ${{{var}}} # value assumed to be defined outside this DSCRIPT file\n" else: value = info["first_val"] #info["value"] if value in ["", None]: definitions += f'{var} = ""\n' elif isinstance(value, str): safe_value = value.replace('\\', '\\\\').replace('\n', '\\n') definitions += f"{var} = {safe_value}\n" else: definitions += f"{var} = {value}\n" # Template (number of lines/items) printsinglecontent = False template = f"\n# TEMPLATES (number of items={len(self.TEMPLATE)})\n" for key, script_template in self.TEMPLATE.items(): # Get local template definitions and detected variables template_vars = script_template.definitions used_variables = script_template.detect_variables() islocal = False # Temporary dictionary to accumulate variables to add to allvars valid_local_vars = lambdaScriptdata() # Write template-specific definitions only if they meet the updated conditions for var in template_vars.keys(): # Conditions for adding a variable to the local template and to `allvars` if (var in used_variables or not onlyusedvariables) and ( script_template.is_variable_set_value_only(var) and (var not in allvars or getattr(template_vars, var) != getattr(allvars, var)) ): # Start local definitions section if this is the first local variable for the template if not islocal: template += f"\n# LOCAL DEFINITIONS for key '{key}'\n" islocal = True # Retrieve and process the variable value value = getattr(template_vars, var) if value in ["", None]: template += f'{var} = ""\n' # Set empty or None values as "" elif isinstance(value, str): safe_value = value.replace('\\', '\\\\').replace('\n', '\\n') template += f"{var} = {safe_value}\n" else: template += f"{var} = {value}\n" # Add the variable to valid_local_vars for selective update of allvars valid_local_vars.setattr(var, value) # Update allvars only with filtered, valid local variables allvars += valid_local_vars # Write the template content if isinstance(script_template.content, list): if len(script_template.content) == 1: # Single-line template saved as a single line content_str = script_template.content[0].strip() template += "" if printsinglecontent else "\n" template += f"{key}: {content_str}\n" printsinglecontent = True else: content_str = '\n '.join(script_template.content) template += f"\n{key}: [\n {content_str}\n ]\n" printsinglecontent = False else: template += "" if printsinglecontent else "\n" template += f"{key}: {script_template.content}\n" printsinglecontent = True # Attributes (number of lines/items with explicit attributes) attributes = f"# ATTRIBUTES (number of items with explicit attributes={len(self.TEMPLATE)})\n" for key, script_template in self.TEMPLATE.items(): attr_str = ", ".join(f"{attr_name}={repr(attr_value)}" for attr_name, attr_value in script_template.attributes.items()) attributes += f"{key}:{{{attr_str}}}\n" # Combine all sections into one content content = header + "\n" + global_params + "\n" + definitions + "\n" + template + "\n" + attributes + "\n" # Append footer information to the content non_empty_lines = sum(1 for line in content.splitlines() if line.strip()) # Count non-empty lines execution_time = time.time() - start_time # Calculate the execution time in seconds # Prepare the footer content footer_lines = [ ["Non-empty lines", str(non_empty_lines)], ["Execution time (seconds)", f"{execution_time:.4f}"], ] # Format footer into tabular style footer_content = [ f"{row[0]:<25} {row[1]:<15}" for row in footer_lines ] # Use frame_header to format footer footer = frame_header( lines=["DSCRIPT SAVE FILE generator"] + footer_content, style=1 ) # Append footer to the content content += f"\n{footer}" if generatoronly: return content else: # Write the content to the file with open(filepath, 'w') as f: f.write(content) print(f"\nScript saved to {filepath}") return filepath # Write Method -- added on 2024-09-05 # ------------ @staticmethod @staticmethod def write(scriptcontent, filename=None, foldername=None, overwrite=False): """ Writes the provided script content to a specified file in a given folder, with a header if necessary. Parameters ---------- scriptcontent : str The content to be written to the file. filename : str, optional The name of the file. If not provided, a random name will be generated. The extension `.txt` will be appended if not already present. foldername : str, optional The folder where the file will be saved. If not provided, the current working directory is used. overwrite : bool, optional If False (default), raises a `FileExistsError` if the file already exists. If True, the file will be overwritten if it exists. Returns ------- str The full path to the written file. Raises ------ FileExistsError If the file already exists and `overwrite` is set to False. Notes ----- - A header is prepended to the content if it does not already exist, using the `header` method. - The header includes metadata such as the current date, username, hostname, and file details. """ # Generate a random name if filename is not provided if filename is None: filename = autoname(8) # Generates a random name of 8 letters # Ensure the filename ends with '.txt' if not filename.endswith('.txt'): filename += '.txt' # Handle foldername and relative paths if foldername is None or foldername == "": # If foldername is empty or None, use current working directory for relative paths if not os.path.isabs(filename): filepath = os.path.join(os.getcwd(), filename) else: filepath = filename # If filename is absolute, use it directly else: # If foldername is provided and filename is not absolute, use foldername if not os.path.isabs(filename): filepath = os.path.join(foldername, filename) else: filepath = filename # Check if file already exists, raise exception if it does and overwrite is False if os.path.exists(filepath) and not overwrite: raise FileExistsError(f"The file '{filepath}' already exists.") # Count total and non-empty lines in the content total_lines = len(scriptcontent.splitlines()) non_empty_lines = sum(1 for line in scriptcontent.splitlines() if line.strip()) # Prepare header if not already present if not scriptcontent.startswith("# DSCRIPT SAVE FILE"): fname = os.path.basename(filepath) # Extracts the filename (e.g., "myscript.txt") name, _ = os.path.splitext(fname) # Removes the extension, e.g., "myscript" metadata = get_metadata() # retrieve all metadata (statically) header = dscript.header(name=name, verbosity=True,style=1,filepath=filepath, version = metadata["version"], license = metadata["license"], email = metadata["email"]) # Add line count information to the header footer = frame_header( lines=[ f"Total lines written: {total_lines}", f"Non-empty lines: {non_empty_lines}" ], style=1 ) scriptcontent = header + "\n" + scriptcontent + "\n" + footer # Write the content to the file with open(filepath, 'w') as file: file.write(scriptcontent) return filepath # Load Method and its Parsing Rules -- added on 2024-09-04 # --------------------------------- @classmethod def load(cls, filename, foldername=None, numerickeys=True): """ Load a script instance from a text file. Parameters ---------- filename : str The name of the file to load the script from. If the filename does not end with ".txt", the extension is automatically appended. foldername : str, optional The directory where the file is located. If not provided, it defaults to the system's temporary directory. If the filename does not include a full path, this folder will be used. numerickeys : bool, default=True If True, numeric string keys in the template section are automatically converted into integers. For example, the key "0" would be converted into the integer 0. Returns ------- dscript A new `dscript` instance populated with the content of the loaded file. Raises ------ ValueError If the file does not start with the correct DSCRIPT header or the file format is invalid. FileNotFoundError If the specified file does not exist. Notes ----- - The file is expected to follow the same structured format as the one produced by the `save()` method. - The method processes global parameters, definitions, template lines/items, and attributes. If the file includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers if `numerickeys=True`. - The script structure is dynamically rebuilt, and each section (global parameters, definitions, template, and attributes) is correctly parsed and assigned to the corresponding parts of the `dscript` instance. """ # Step 0 validate filepath if not filename.endswith('.txt'): filename += '.txt' # Handle foldername and relative paths if foldername is None or foldername == "": # If the foldername is empty or None, use current working directory for relative paths if not os.path.isabs(filename): filepath = os.path.join(os.getcwd(), filename) else: filepath = filename # If filename is absolute, use it directly else: # If foldername is provided and filename is not absolute, use foldername if not os.path.isabs(filename): filepath = os.path.join(foldername, filename) else: filepath = filename if not os.path.exists(filepath): raise FileExistsError(f"The file '{filepath}' does not exist.") # Read the file contents with open(filepath, 'r') as f: content = f.read() # Call parsesyntax to parse the file content fname = os.path.basename(filepath) # Extracts the filename (e.g., "myscript.txt") name, _ = os.path.splitext(fname) # Removes the extension, e.g., "myscript return cls.parsesyntax(content, name, numerickeys) # Load Method and its Parsing Rules -- added on 2024-09-04 # --------------------------------- @classmethod def parsesyntax(cls, content, name=None, numerickeys=True, verbose=False, authentification=True, comment_chars="#%",continuation_marker="..."): """ Parse a DSCRIPT script from a string content. Parameters ---------- content : str The string content of the DSCRIPT script to be parsed. name : str, optional The name of the dscript project. If `None`, a random name is generated. numerickeys : bool, default=True If `True`, numeric string keys in the template section are automatically converted into integers. verbose : bool, default=False If `True`, the parser will output warnings for unrecognized lines outside of blocks. authentification : bool, default=True If `True`, the parser is expected that the first non empty line is # DSCRIPT SAVE FILE comment_chars : str, optional (default: "#%") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. continuation_marker : str, optional (default: "...") A string containing characters to indicate line continuation Any characters after the continuation marker are considered comment and are theorefore ignored Returns ------- dscript A new `dscript` instance populated with the content of the loaded file. Raises ------ ValueError If content does not start with the correct DSCRIPT header or the file format is invalid. Notes ----- **DSCRIPT SAVE FILE FORMAT** This script syntax is designed for creating dynamic and customizable input files, where variables, templates, and control attributes can be defined in a flexible manner. **Mandatory First Line:** Every DSCRIPT file must begin with the following line: ```plaintext # DSCRIPT SAVE FILE ``` **Structure Overview:** 1. **Global Parameters Section (Optional):** - This section defines global script settings, enclosed within curly braces `{}`. - Properties include: - `SECTIONS`: List of section names to be considered (e.g., `["DYNAMIC"]`). - `section`: Current section index (e.g., `0`). - `position`: Current script position in the order. - `role`: Defines the role of the script instance (e.g., `"dscript instance"`). - `description`: A short description of the script (e.g., `"dynamic script"`). - `userid`: Identifier for the user (e.g., `"dscript"`). - `version`: Script version (e.g., `0.1`). - `verbose`: Verbosity flag, typically a boolean (e.g., `False`). **Example:** ```plaintext { SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters } ``` 2. **Definitions Section:** - Variables are defined in Python-like syntax, allowing for dynamic variable substitution. - Variables can be numbers, strings, or lists, and they can include placeholders using `$` to delay execution or substitution. **Example:** ```plaintext d = 3 # Define a number periodic = "$p" # '$' prevents immediate evaluation of 'p' units = "$metal" # '$' prevents immediate evaluation of 'metal' dimension = "${d}" # Variable substitution boundary = ['p', 'p', 'p'] # List with a mix of variables and values atom_style = "$atomic" # String variable with delayed evaluation ``` 3. **Templates Section:** - This section provides a mapping between keys and their corresponding commands or instructions. - Each template can reference variables defined in the **Definitions** section or elsewhere, typically using the `${variable}` syntax. - **Syntax Variations**: Templates can be defined in several ways, including without blocks, with single- or multi-line blocks, and with ellipsis (`...`) as a line continuation marker. - **Single-line Template Without Block**: ```plaintext KEY: INSTRUCTION ``` - `KEY` is the identifier for the template (numeric or alphanumeric). - `INSTRUCTION` is the command or template text, which may reference variables. - **Single-line Template With Block**: ```plaintext KEY: [INSTRUCTION] ``` - Uses square brackets (`[ ]`) around the `INSTRUCTION`, indicating that all instructions are part of the block. - **Multi-line Template With Block**: ```plaintext KEY: [ INSTRUCTION1 INSTRUCTION2 ... ] ``` - Begins with `KEY: [` and ends with a standalone `]` on a new line. - Instructions within the block can span multiple lines, and ellipses (`...`) at the end of a line are used to indicate that the line continues, ignoring any content following the ellipsis as comments. - Comments following ellipses are removed after parsing and do not become part of the block, preserving only the instructions. - **Multi-line Template With Continuation Marker (Ellipsis)**: - For templates with complex code containing square brackets (`[ ]`), the ellipsis (`...`) can be used to prevent `]` from prematurely closing the block. The ellipsis will keep the line open across multiple lines, allowing brackets in the instructions. **Example:** ```plaintext example1: command ${value} # Single-line template without block example2: [command ${value}] # Single-line template with block # Multi-line template with block example3: [ command1 ${var1} command2 ${var2} ... # Line continues after ellipsis command3 ${var3} ... # Additional instruction continues ] # Multi-line template with ellipsis (handling square brackets) example4: [ A[0][1] ... # Ellipsis allows [ ] within instructions B[2][3] ... # Another instruction in the block ] ``` - **Key Points**: - **Blocks** allow grouping of multiple instructions for a single key, enclosed in square brackets. - **Ellipsis (`...`)** at the end of a line keeps the line open, preventing premature closing by `]`, especially useful if the template code includes square brackets (`[ ]`). - **Comments** placed after the ellipsis are removed after parsing and are not part of the final block content. This flexibility supports both simple and complex template structures, allowing instructions to be grouped logically while keeping code and comments distinct. 4. **Attributes Section:** - Each template line can have customizable attributes to control behavior and conditions. - Default attributes include: - `facultative`: If `True`, the line is optional and can be removed if needed. - `eval`: If `True`, the line will be evaluated with Python's `eval()` function. - `readonly`: If `True`, the line cannot be modified later in the script. - `condition`: An expression that must be satisfied for the line to be included. - `condeval`: If `True`, the condition will be evaluated using `eval()`. - `detectvar`: If `True`, this creates variables in the **Definitions** section if they do not exist. **Example:** ```plaintext units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True} dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True} ``` **Note on Multiple Definitions** This example demonstrates how variables defined in the **Definitions** section are handled for each template. Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates can use different values for the same variable if redefined. **Example:** ```plaintext # DSCRIPT SAVE FILE # Definitions var = 10 # Template key1 key1: Template content with ${var} # Definitions var = 20 # Template key2 key2: Template content with ${var} # Template key3 key3:[ this is an undefined variable ${var31} this is another undefined variable ${var32} this variable is defined ${var} ] ``` **Parsing and Usage:** ```python # Parse content using parsesyntax() ds = dscript.parsesyntax(content) # Accessing templates and their variables print(ds.TEMPLATE['key1'].text) # Output: Template content with 10 print(ds.TEMPLATE['key2'].text) # Output: Template content with 20 ``` **Handling Undefined Variables:** Variables like `${var31}` and `${var32}` in `key3` are undefined. The parser will handle them based on your substitution logic or raise an error if they are required. **Important Notes:** - The parser processes the script sequentially. Definitions must appear before the templates that use them. - Templates capture the variable definitions at the time they are parsed. Redefining a variable affects only subsequent templates. - Comments outside of blocks are allowed and ignored by the parser. - Content within templates is treated as-is, allowing for any syntax required by the target system (e.g., LAMMPS commands). **Advanced Example** Here's a more advanced example demonstrating the use of global definitions, local definitions, templates, and how to parse and render the template content. ```python content = ''' # GLOBAL DEFINITIONS dumpfile = $dump.LAMMPS dumpdt = 50 thermodt = 100 runtime = 5000 # LOCAL DEFINITIONS for step '0' dimension = 3 units = $si boundary = ['f', 'f', 'f'] atom_style = $smd atom_modify = ['map', 'array'] comm_modify = ['vel', 'yes'] neigh_modify = ['every', 10, 'delay', 0, 'check', 'yes'] newton = $off name = $SimulationBox # This is a comment line outside of blocks # ------------------------------------------ 0: [ % --------------[ Initialization Header (helper) for "${name}" ]-------------- # set a parameter to None or "" to remove the definition dimension ${dimension} units ${units} boundary ${boundary} atom_style ${atom_style} atom_modify ${atom_modify} comm_modify ${comm_modify} neigh_modify ${neigh_modify} newton ${newton} # ------------------------------------------ ] ''' # Parse the content ds = dscript.parsesyntax(content, verbose=True, authentification=False) # Access and print the rendered template print("Template 0 content:") print(ds.TEMPLATE[0].do()) ``` **Explanation:** - **Global Definitions:** Define variables that are accessible throughout the script. - **Local Definitions for Step '0':** Define variables specific to a particular step or template. - **Template Block:** Identified by `0: [ ... ]`, it contains the content where variables will be substituted. - **Comments:** Lines starting with `#` are comments and are ignored by the parser outside of template blocks. **Expected Output:** ``` Template 0 content: # --------------[ Initialization Header (helper) for "SimulationBox" ]-------------- # set a parameter to None or "" to remove the definition dimension 3 units si boundary ['f', 'f', 'f'] atom_style smd atom_modify ['map', 'array'] comm_modify ['vel', 'yes'] neigh_modify ['every', 10, 'delay', 0, 'check', 'yes'] newton off # ------------------------------------------ ``` **Notes:** - The `do()` method renders the template, substituting variables with their defined values. - Variables like `${dimension}` are replaced with their corresponding values defined in the local or global definitions. - The parser handles comments and blank lines appropriately, ensuring they don't interfere with the parsing logic. """ # Split the content into lines lines = content.splitlines() if not lines: raise ValueError("File/Content is empty or only contains blank lines.") # Initialize containers global_params = {} GLOBALdefinitions = lambdaScriptdata() LOCALdefinitions = lambdaScriptdata() template = {} attributes = {} # State variables inside_global_params = False global_params_content = "" inside_template_block = False current_template_key = None current_template_content = [] current_var_value = lambdaScriptdata() # Initialize line number line_number = 0 last_successful_line = 0 # Step 1: Authenticate the file if authentification: auth_line_found = False max_header_lines = 10 header_end_idx = -1 for idx, line in enumerate(lines[:max_header_lines]): stripped_line = line.strip() if not stripped_line: continue if stripped_line.startswith("# DSCRIPT SAVE FILE"): auth_line_found = True header_end_idx = idx break elif stripped_line.startswith("#") or stripped_line.startswith("%"): continue else: raise ValueError(f"Unexpected content before authentication line (# DSCRIPT SAVE FILE) at line {idx + 1}:\n{line}") if not auth_line_found: raise ValueError("File/Content is not a valid DSCRIPT file.") # Remove header lines lines = lines[header_end_idx + 1:] line_number = header_end_idx + 1 last_successful_line = line_number - 1 else: line_number = 0 last_successful_line = 0 # Process each line for idx, line in enumerate(lines): line_number += 1 line_content = line.rstrip('\n') # Determine if we're inside a template block if inside_template_block: # Extract the code with its eventual continuation_marker code_line = remove_comments( line_content, comment_chars=comment_chars, continuation_marker=continuation_marker, remove_continuation_marker=False, ).rstrip() # Check if line should continue if code_line.endswith(continuation_marker): # Append line up to the continuation marker endofline_index = line_content.rindex(continuation_marker) trimmed_content = line_content[:endofline_index].rstrip() if trimmed_content: current_template_content.append(trimmed_content) continue elif code_line.endswith("]"): # End of multi-line block closing_index = code_line.rindex(']') trimmed_content = code_line[:closing_index].rstrip() # Append any valid content before `]`, if non-empty if trimmed_content: current_template_content.append(trimmed_content) # End of template block content = '\n'.join(current_template_content) template[current_template_key] = ScriptTemplate( content=content, autorefresh=False, definitions=LOCALdefinitions, verbose=verbose, userid=current_template_key) # Refresh variables definitions template[current_template_key].refreshvar(globaldefinitions=GLOBALdefinitions) LOCALdefinitions = lambdaScriptdata() # Reset state for next block inside_template_block = False current_template_key = None current_template_content = [] last_successful_line = line_number continue else: # Append the entire original line content if not ending with `...` or `]` current_template_content.append(line_content) continue # Not inside a template block stripped_no_comments = remove_comments(line_content) # Ignore empty lines after removing comments if not stripped_no_comments.strip(): continue # If the original line is a comment line, skip it if line_content.strip().startswith("#") or line_content.strip().startswith("%"): continue stripped = stripped_no_comments.strip() # Handle start of a new template block template_block_match = re.match(r'^(\w+)\s*:\s*\[', stripped) if template_block_match: current_template_key = template_block_match.group(1) if inside_template_block: # Collect error context context_start = max(0, last_successful_line - 3) context_end = min(len(lines), line_number + 2) error_context_lines = lines[context_start:context_end] error_context = "" for i, error_line in enumerate(error_context_lines): line_num = context_start + i + 1 indicator = ">" if line_num == line_number else "*" if line_num == last_successful_line else " " error_context += f"{indicator} {line_num}: {error_line}\n" raise ValueError( f"Template block '{current_template_key}' starting at line {last_successful_line} (*) was not properly closed before starting a new one at line {line_number} (>).\n\n" f"Error context:\n{error_context}" ) else: inside_template_block = True idx_open_bracket = line_content.index('[') remainder = line_content[idx_open_bracket + 1:].strip() if remainder: remainder_code = remove_comments(remainder, comment_chars=comment_chars).rstrip() if remainder_code.endswith("]"): closing_index = remainder_code.rindex(']') content_line = remainder_code[:closing_index].strip() if content_line: current_template_content.append(content_line) content = '\n'.join(current_template_content) template[current_template_key] = ScriptTemplate( content=content, autorefresh=False, definitions=LOCALdefinitions, verbose=verbose, userid=current_template_key) template[current_template_key].refreshvar(globaldefinitions=GLOBALdefinitions) LOCALdefinitions = lambdaScriptdata() inside_template_block = False current_template_key = None current_template_content = [] last_successful_line = line_number continue else: current_template_content.append(remainder) last_successful_line = line_number continue # Handle start of global parameters if stripped.startswith('{') and not inside_global_params: if '}' in stripped: global_params_content = stripped cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" last_successful_line = line_number else: inside_global_params = True global_params_content = stripped continue # Handle global parameters inside {...} if inside_global_params: global_params_content += ' ' + stripped if '}' in stripped: inside_global_params = False cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" last_successful_line = line_number continue # Handle attributes attribute_match = re.match(r'^(\w+)\s*:\s*\{(.+)\}', stripped) if attribute_match: key, attr_content = attribute_match.groups() attributes[key] = {} cls._parse_attributes(attributes[key], attr_content.strip()) last_successful_line = line_number continue # Handle definitions definition_match = re.match(r'^(\w+)\s*=\s*(.+)', stripped) if definition_match: key, value = definition_match.groups() convertedvalue = cls._convert_value(value) if key in GLOBALdefinitions: if (GLOBALdefinitions.getattr(key) != convertedvalue) or \ (getattr(current_var_value, key) != convertedvalue): LOCALdefinitions.setattr(key, convertedvalue) else: GLOBALdefinitions.setattr(key, convertedvalue) last_successful_line = line_number setattr(current_var_value, key, convertedvalue) continue # Handle single-line templates template_match = re.match(r'^(\w+)\s*:\s*(.+)', stripped) if template_match: key, content = template_match.groups() template[key] = ScriptTemplate( content = content.strip(), autorefresh = False, definitions=LOCALdefinitions, verbose=verbose, userid=key) template[key].refreshvar(globaldefinitions=GLOBALdefinitions) LOCALdefinitions = lambdaScriptdata() last_successful_line = line_number continue # Unrecognized line if verbose: print(f"Warning: Unrecognized line at {line_number}: {line_content}") last_successful_line = line_number continue # At the end, check if any template block was left unclosed if inside_template_block: # Collect error context context_start = max(0, last_successful_line - 3) context_end = min(len(lines), last_successful_line + 3) error_context_lines = lines[context_start:context_end] error_context = "" for i, error_line in enumerate(error_context_lines): line_num = context_start + i indicator = ">" if line_num == last_successful_line else " " error_context += f"{indicator} {line_num}: {error_line}\n" raise ValueError( f"Template block '{current_template_key}' starting at line {last_successful_line} was not properly closed.\n\n" f"Error context:\n{error_context}" ) # Apply attributes to templates for key in attributes: if key in template: for attr_name, attr_value in attributes[key].items(): setattr(template[key], attr_name, attr_value) template[key]._autorefresh = True # restore the default behavior for the end-user else: raise ValueError(f"Attributes found for undefined template key: {key}") # Create and return new instance if name is None: name = autoname(8) instance = cls( name=name, SECTIONS=global_params.get('SECTIONS', ['DYNAMIC']), section=global_params.get('section', 0), position=global_params.get('position', 0), role=global_params.get('role', 'dscript instance'), description=global_params.get('description', 'dynamic script'), userid=global_params.get('userid', 'dscript'), version=global_params.get('version', 0.1), verbose=global_params.get('verbose', False) ) # Convert numeric string keys to integers if numerickeys is True if numerickeys: numeric_template = {} for key, value in template.items(): if key.isdigit(): numeric_template[int(key)] = value else: numeric_template[key] = value template = numeric_template # Set definitions and template instance.DEFINITIONS = GLOBALdefinitions instance.TEMPLATE = template # Refresh variables instance.set_all_variables() # Check variables instance.check_all_variables(verbose=False) return instance @classmethod def parsesyntax_legacy(cls, content, name=None, numerickeys=True): """ Parse a script from a string content. [ ------------------------------------------------------] [ Legacy parsesyntax method for backward compatibility. ] [ ------------------------------------------------------] Parameters ---------- content : str The string content of the script to be parsed. name : str The name of the dscript project (if None, it is set randomly) numerickeys : bool, default=True If True, numeric string keys in the template section are automatically converted into integers. Returns ------- dscript A new `dscript` instance populated with the content of the loaded file. Raises ------ ValueError If content does not start with the correct DSCRIPT header or the file format is invalid. Notes ----- - The file is expected to follow the same structured format as the one produced by the `save()` method. - The method processes global parameters, definitions, template lines/items, and attributes. If the file includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers if `numerickeys=True`. - The script structure is dynamically rebuilt, and each section (global parameters, definitions, template, and attributes) is correctly parsed and assigned to the corresponding parts of the `dscript` instance. PIZZA.DSCRIPT SAVE FILE FORMAT ------------------------------- This script syntax is designed for creating dynamic and customizable input files, where variables, templates, and control attributes can be defined in a flexible manner. ### Mandatory First Line: Every DSCRIPT file must begin with the following line: # DSCRIPT SAVE FILE ### Structure Overview: 1. **Global Parameters Section (Optional):** - This section defines global script settings, enclosed within curly braces `{ }`. - Properties include: - `SECTIONS`: List of section names to be considered (e.g., `["DYNAMIC"]`). - `section`: Current section index (e.g., `0`). - `position`: Current script position in the order. - `role`: Defines the role of the script instance (e.g., `"dscript instance"`). - `description`: A short description of the script (e.g., `"dynamic script"`). - `userid`: Identifier for the user (e.g., `"dscript"`). - `version`: Script version (e.g., `0.1`). - `verbose`: Verbosity flag, typically a boolean (e.g., `False`). Example: ``` { SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters } ``` 2. **Definitions Section:** - Variables are defined in Python-like syntax, allowing for dynamic variable substitution. - Variables can be numbers, strings, or lists, and they can include placeholders using `$` to delay execution or substitution. Example: ``` d = 3 # Define a number periodic = "$p" # '$' prevents immediate evaluation of 'p' units = "$metal" # '$' prevents immediate evaluation of 'metal' dimension = "${d}" # Variable substitution boundary = ['p', 'p', 'p'] # List with a mix of variables and values atom_style = "$atomic" # String variable with delayed evaluation ``` 3. **Templates Section:** - This section provides a mapping between keys and their corresponding commands or instructions. - The templates reference variables defined in the **Definitions** section or elsewhere. - Syntax: ``` KEY: INSTRUCTION ``` where: - `KEY` can be numeric or alphanumeric. - `INSTRUCTION` represents a command template, often referring to variables using `${variable}` notation. Example: ``` units: units ${units} # Template uses the 'units' variable dim: dimension ${dimension} # Template for setting the dimension bound: boundary ${boundary} # Template for boundary settings lattice: lattice ${lattice} # Lattice template ``` 4. **Attributes Section:** - Each template line can have customizable attributes to control behavior and conditions. - Default attributes include: - `facultative`: If `True`, the line is optional and can be removed if needed. - `eval`: If `True`, the line will be evaluated with Python's `eval()` function. - `readonly`: If `True`, the line cannot be modified later in the script. - `condition`: An expression that must be satisfied for the line to be included. - `condeval`: If `True`, the condition will be evaluated using `eval()`. - `detectvar`: If `True`, this creates variables in the **Definitions** section if they do not exist. Example: ``` units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True} dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True} ``` Note on multiple definitions ----------------------------- This example demonstrates how variables defined in the `Definitions` section are handled for each template. Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates can use different values for the same variable if redefined. content = "" " # DSCRIPT SAVE FILE # Definitions var = 10 # Template ky1 key1: Template content with ${var} # Definitions var = 20 # Template key2 key2: Template content with ${var} # Template key3 key3:[ this is an underfined variable ${var31} this is an another underfined variable ${var32} this variables is defined ${var} ] "" " # Parse content using parsesyntax() ds = dscript.parsesyntax(content) # Key1 should use the first definition of 'var' (10) print(ds.key1.definitions.var) # Output: Template content with 10 # Key2 should use the updated definition of 'var' (20) print(ds.key2.definitions.var) # Output: Template content with 10 """ # Split the content into lines lines = content.splitlines() lines = [line for line in lines if line.strip()] # Remove blank or empty lines # Raise an error if no content is left after removing blank lines if not lines: raise ValueError("File/Content is empty or only contains blank lines.") # Initialize containers for global parameters, definitions, templates, and attributes global_params = {} definitions = lambdaScriptdata() template = {} attributes = {} # State variables to handle multi-line global parameters and attributes inside_global_params = False inside_attributes = False current_attr_key = None # Ensure this is properly initialized global_params_content = "" inside_template_block = False # Track if we are inside a multi-line template current_template_key = None # Track the current template key current_template_content = [] # Store lines for the current template content # Step 1: Authenticate the file if not lines[0].strip().startswith("# DSCRIPT SAVE FILE"): raise ValueError("File/Content is not a valid DSCRIPT file.") # Step 2: Process each line dynamically for line in lines[1:]: stripped = line.strip() # Ignore empty lines and comments if not stripped or stripped.startswith("#"): continue # Remove trailing comments stripped = remove_comments(stripped) # Step 3: Handle global parameters inside {...} if stripped.startswith("{"): # Found the opening {, start accumulating global parameters inside_global_params = True # Remove the opening { and accumulate the remaining content global_params_content = stripped[stripped.index('{') + 1:].strip() # Check if the closing } is also on the same line if '}' in global_params_content: global_params_content = global_params_content[:global_params_content.index('}')].strip() inside_global_params = False # We found the closing } on the same line # Now parse the global parameters block cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" # Reset for the next block continue if inside_global_params: # Accumulate content until the closing } is found if stripped.endswith("}"): # Found the closing }, accumulate and process the entire block global_params_content += " " + stripped[:stripped.index('}')].strip() inside_global_params = False # Finished reading global parameters block # Now parse the entire global parameters block cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" # Reset for the next block if necessary else: # Continue accumulating if } is not found global_params_content += " " + stripped continue # Step 4: Detect the start of a multi-line template block inside [...] if not inside_template_block: template_match = re.match(r'(\w+)\s*:\s*\[', stripped) if template_match: current_template_key = template_match.group(1) # Capture the key inside_template_block = True current_template_content = [] # Reset content list continue # If inside a template block, accumulate lines until we find the closing ] if inside_template_block: if stripped == "]": # End of the template block, join the content and store it template[current_template_key] = ScriptTemplate( current_template_content, definitions=lambdaScriptdata(**definitions), # Clone current global definitions verbose=True, userid=current_template_key ) template[current_template_key].refreshvar() inside_template_block = False current_template_key = None current_template_content = [] else: # Accumulate the current line (without surrounding spaces) current_template_content.append(stripped) continue # Step 5: Handle attributes inside {...} if inside_attributes and stripped.endswith("}"): # Finish processing attributes for the current key cls._parse_attributes(attributes[current_attr_key], stripped[:-1]) # Remove trailing } inside_attributes = False current_attr_key = None continue if inside_attributes: # Continue accumulating attributes cls._parse_attributes(attributes[current_attr_key], stripped) continue # Step 6: Determine if the line is a definition, template, or attribute definition_match = re.match(r'(\w+)\s*=\s*(.+)', stripped) template_match = re.match(r'(\w+)\s*:\s*(?!\s*\{.*\}\s*$)(.+)', stripped) # template_match = re.match(r'(\w+)\s*:\s*(?!\{)(.+)', stripped) attribute_match = re.match(r'(\w+)\s*:\s*\{\s*(.+)\s*\}', stripped) # attribute_match = re.match(r'(\w+)\s*:\s*\{(.+)\}', stripped) if definition_match: # Line is a definition (key=value) key, value = definition_match.groups() definitions.setattr(key,cls._convert_value(value)) elif template_match and not inside_template_block: # Line is a template (key: content) key, content = template_match.groups() template[key] = ScriptTemplate( content, definitions=lambdaScriptdata(**definitions), # Clone current definitions verbose=True, userid=current_template_key) template[key].refreshvar() elif attribute_match: # Line is an attribute (key:{attributes...}) current_attr_key, attr_content = attribute_match.groups() attributes[current_attr_key] = {} cls._parse_attributes(attributes[current_attr_key], attr_content) inside_attributes = not stripped.endswith("}") # Step 7: Validation and Reconstruction # Make sure there are no attributes without a template entry for key in attributes: if key not in template: raise ValueError(f"Attributes found for undefined template key: {key}") # Apply attributes to the corresponding template object for attr_name, attr_value in attributes[key].items(): setattr(template[key], attr_name, attr_value) # Step 7: Create and return a new dscript instance if name is None: name = autoname(8) instance = cls( name = name, SECTIONS=global_params.get('SECTIONS', ['DYNAMIC']), section=global_params.get('section', 0), position=global_params.get('position', 0), role=global_params.get('role', 'dscript instance'), description=global_params.get('description', 'dynamic script'), userid=global_params.get('userid', 'dscript'), version=global_params.get('version', 0.1), verbose=global_params.get('verbose', False) ) # Convert numeric string keys to integers if numerickeys is True if numerickeys: numeric_template = {} for key, value in template.items(): # Check if the key is a numeric string if key.isdigit(): numeric_template[int(key)] = value else: numeric_template[key] = value template = numeric_template # Set definitions and template instance.DEFINITIONS = definitions instance.TEMPLATE = template # Refresh variables (ensure that variables are detected and added to definitions) instance.set_all_variables() # Check eval instance.check_all_variables(verbose=False) # return the new instance return instance @classmethod def _parse_global_params(cls, content, global_params): """ Parses global parameters from the accumulated content enclosed in `{}`. ### Parameters: content (str): The content string containing global parameters. global_params (dict): A dictionary to populate with parsed parameters. ### Raises: ValueError: If invalid lines or key-value pairs are encountered. """ # Remove braces from the content content = content.strip().strip("{}") # Split the content into lines by commas lines = re.split(r',(?![^(){}\[\]]*[\)\}\]])', content.strip()) for line in lines: line = line.strip() # Match key-value pairs match = re.match(r'([\w_]+)\s*=\s*(.+)', line) if match: key, value = match.groups() key = key.strip() value = value.strip() # Convert the value to the appropriate Python type and store it global_params[key] = cls._convert_value(value) else: raise ValueError(f"Invalid parameter line: '{line}'") @classmethod def _parse_attributes(cls, attr_dict, content): """Parses attributes from the content inside {attribute=value,...}.""" attr_pairs = re.findall(r'(\w+)\s*=\s*([^,]+)', content) for attr_name, attr_value in attr_pairs: attr_dict[attr_name] = cls._convert_value(attr_value) @classmethod def _convert_value(cls, value): """Converts a string representation of a value to the appropriate Python type.""" value = value.strip() # Boolean and None conversion if value.lower() == 'true': return True elif value.lower() == 'false': return False elif value.lower() == 'none': return None # Handle quoted strings if (value.startswith('"') and value.endswith('"')) or (value.startswith("'") and value.endswith("'")): return value[1:-1] # Handle lists (Python syntax inside the file) if value.startswith('[') and value.endswith(']'): return eval(value) # Using eval to parse lists safely in this controlled scenario # Handle numbers try: if '.' in value: return float(value) return int(value) except ValueError: # Return the value as-is if it doesn't match other types return value def __copy__(self): """ copy method """ cls = self.__class__ copie = cls.__new__(cls) copie.__dict__.update(self.__dict__) return copie def __deepcopy__(self, memo): """ deep copy method """ cls = self.__class__ copie = cls.__new__(cls) memo[id(self)] = copie for k, v in self.__dict__.items(): setattr(copie, k, copy.deepcopy(v, memo)) return copie def detect_all_variables(self): """ Detects all variables across all templates in the dscript object. This method iterates through all ScriptTemplate objects in the dscript and collects variables from each template using the detect_variables method. Returns: -------- list A sorted list of unique variables detected in all templates. """ all_variables = set() # Use a set to avoid duplicates # Iterate through all templates in the dscript object for template_key, template in self.TEMPLATE.items(): # Ensure the template is a ScriptTemplate and has the detect_variables method if isinstance(template, ScriptTemplate): detected_vars = template.detect_variables() all_variables.update(detected_vars) # Add the detected variables to the set return sorted(all_variables) # Return a sorted list of unique variables def add_dynamic_script(self, key, content="", userid=None, definitions=None, verbose=None, **USER): """ Add a dynamic script step to the dscript object. Parameters: ----------- key : str The key for the dynamic script (usually an index or step identifier). content : str or list of str, optional The content (template) of the script step. definitions : lambdaScriptdata, optional The merged variable space (STATIC + GLOBAL + LOCAL). verbose : bool, optional If None, self.verbose will be used. Controls verbosity of the template. USER : dict Additional user variables that override the definitions for this step. """ if definitions is None: definitions = lambdaScriptdata() if verbose is None: verbose = self.verbose # Create a new ScriptTemplate and add it to the TEMPLATE self.TEMPLATE[key] = ScriptTemplate( content=content, definitions=self.DEFINITIONS+definitions, verbose=verbose, userid = key if userid is None else userid, **USER ) def check_all_variables(self, verbose=True, seteval=True, output=False): """ Checks for undefined variables for each TEMPLATE key in the dscript object. Parameters: ----------- verbose : bool, optional, default=True If True, prints information about variables for each TEMPLATE key. Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined. seteval : bool, optional, default=True If True, sets the `eval` attribute to True if at least one variable is defined or set to its default value. output : bool, optional, default=False If True, returns a dictionary with lists of default variables, set variables, and undefined variables. Returns: -------- out : dict, optional If `output=True`, returns a dictionary with the following structure: - "defaultvalues": List of variables set to their default value (${varname}). - "setvalues": List of variables defined with values other than their default. - "undefined": List of variables that are undefined. """ out = {"defaultvalues": [], "setvalues": [], "undefined": []} for key in self.TEMPLATE: template = self.TEMPLATE[key] # Call the check_variables method of ScriptTemplate for each TEMPLATE key result = template.check_variables(verbose=verbose, seteval=seteval) # Update the output dictionary if needed out["defaultvalues"].extend(result["defaultvalues"]) out["setvalues"].extend(result["setvalues"]) out["undefined"].extend(result["undefined"]) if output: return out def set_all_variables(self): """ Ensures that all variables in the templates are added to the global definitions with default values if they are not already defined. """ for key, script_template in self.TEMPLATE.items(): # Check and update the global definitions with template-specific variables for var in script_template.detect_variables(): if var not in self.DEFINITIONS: # Add undefined variables with their default value self.DEFINITIONS.setattr(var, f"${{{var}}}") # Set default as ${varname}Class variables
var construction_attributes
Static methods
def header(name=None, verbose=True, verbosity=None, style=2, filepath=None, version=None, license=None, email=None)-
Generate a formatted header for the DSCRIPT file.
Parameters:
name (str, optional): The name of the script. If None, "Unnamed" is used. verbose (bool, optional): Whether to include the header. Default is True. verbosity (int, optional): Verbosity level. Overrides <code>verbose</code> if specified. style (int, optional): ASCII style for the header (default=2). filepath (str, optional): Full path to the file being saved. If None, the line mentioning the file path is excluded. version (str, optional): DSCRIPT version. If None, it is omitted from the header. license (str, optional): License type. If None, it is omitted from the header. email (str, optional): Contact email. If None, it is omitted from the header.Returns:
str: A formatted string representing the script's metadata and initialization details. Returns an empty string if <code>verbose</code> is False.The header includes:
- DSCRIPT version, license, and contact email, if provided. - The name of the script. - Filepath, if provided. - Information on where and when the script was generated.Notes:
- If <code>verbosity</code> is specified, it overrides <code>verbose</code>. - Omits metadata lines if <code>version</code>, <code>license</code>, or <code>email</code> are not provided.Expand source code
@staticmethod def header(name=None, verbose=True, verbosity=None, style=2, filepath=None, version=None, license=None, email=None): """ Generate a formatted header for the DSCRIPT file. ### Parameters: name (str, optional): The name of the script. If None, "Unnamed" is used. verbose (bool, optional): Whether to include the header. Default is True. verbosity (int, optional): Verbosity level. Overrides `verbose` if specified. style (int, optional): ASCII style for the header (default=2). filepath (str, optional): Full path to the file being saved. If None, the line mentioning the file path is excluded. version (str, optional): DSCRIPT version. If None, it is omitted from the header. license (str, optional): License type. If None, it is omitted from the header. email (str, optional): Contact email. If None, it is omitted from the header. ### Returns: str: A formatted string representing the script's metadata and initialization details. Returns an empty string if `verbose` is False. ### The header includes: - DSCRIPT version, license, and contact email, if provided. - The name of the script. - Filepath, if provided. - Information on where and when the script was generated. ### Notes: - If `verbosity` is specified, it overrides `verbose`. - Omits metadata lines if `version`, `license`, or `email` are not provided. """ # Resolve verbosity verbose = verbosity > 0 if verbosity is not None else verbose if not verbose: return "" # Validate inputs if name is None: name = "Unnamed" # Prepare metadata line metadata = [] if version: metadata.append(f"v{version}") if license: metadata.append(f"License: {license}") if email: metadata.append(f"Email: {email}") metadata_line = " | ".join(metadata) # Prepare the framed header content lines = [] if metadata_line: lines.append(f"PIZZA.DSCRIPT FILE {metadata_line}") lines += [ "", f"Name: {name}", ] # Add the filepath line if filepath is not None if filepath: lines.append(f"Path: {filepath}") lines += [ "", f"Generated on: {getpass.getuser()}@{socket.gethostname()}:{os.getcwd()}", f"{datetime.datetime.now().strftime('%A, %B %d, %Y at %H:%M:%S')}", ] # Use the shared frame_header function to format the framed content return frame_header(lines, style=style) def load(filename, foldername=None, numerickeys=True)-
Load a script instance from a text file.
Parameters
filename:str- The name of the file to load the script from. If the filename does not end with ".txt", the extension is automatically appended.
foldername:str, optional- The directory where the file is located. If not provided, it defaults to the system's temporary directory. If the filename does not include a full path, this folder will be used.
numerickeys:bool, default=True- If True, numeric string keys in the template section are automatically converted into integers. For example, the key "0" would be converted into the integer 0.
Returns
Raises
ValueError- If the file does not start with the correct DSCRIPT header or the file format is invalid.
FileNotFoundError- If the specified file does not exist.
Notes
- The file is expected to follow the same structured format as the one produced by the
save()method. - The method processes global parameters, definitions, template lines/items, and attributes. If the file
includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers
if
numerickeys=True. - The script structure is dynamically rebuilt, and each section (global parameters, definitions,
template, and attributes) is correctly parsed and assigned to the corresponding parts of the
dscriptinstance.
Expand source code
@classmethod def load(cls, filename, foldername=None, numerickeys=True): """ Load a script instance from a text file. Parameters ---------- filename : str The name of the file to load the script from. If the filename does not end with ".txt", the extension is automatically appended. foldername : str, optional The directory where the file is located. If not provided, it defaults to the system's temporary directory. If the filename does not include a full path, this folder will be used. numerickeys : bool, default=True If True, numeric string keys in the template section are automatically converted into integers. For example, the key "0" would be converted into the integer 0. Returns ------- dscript A new `dscript` instance populated with the content of the loaded file. Raises ------ ValueError If the file does not start with the correct DSCRIPT header or the file format is invalid. FileNotFoundError If the specified file does not exist. Notes ----- - The file is expected to follow the same structured format as the one produced by the `save()` method. - The method processes global parameters, definitions, template lines/items, and attributes. If the file includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers if `numerickeys=True`. - The script structure is dynamically rebuilt, and each section (global parameters, definitions, template, and attributes) is correctly parsed and assigned to the corresponding parts of the `dscript` instance. """ # Step 0 validate filepath if not filename.endswith('.txt'): filename += '.txt' # Handle foldername and relative paths if foldername is None or foldername == "": # If the foldername is empty or None, use current working directory for relative paths if not os.path.isabs(filename): filepath = os.path.join(os.getcwd(), filename) else: filepath = filename # If filename is absolute, use it directly else: # If foldername is provided and filename is not absolute, use foldername if not os.path.isabs(filename): filepath = os.path.join(foldername, filename) else: filepath = filename if not os.path.exists(filepath): raise FileExistsError(f"The file '{filepath}' does not exist.") # Read the file contents with open(filepath, 'r') as f: content = f.read() # Call parsesyntax to parse the file content fname = os.path.basename(filepath) # Extracts the filename (e.g., "myscript.txt") name, _ = os.path.splitext(fname) # Removes the extension, e.g., "myscript return cls.parsesyntax(content, name, numerickeys) def parsesyntax(content, name=None, numerickeys=True, verbose=False, authentification=True, comment_chars='#%', continuation_marker='...')-
Parse a DSCRIPT script from a string content.
Parameters ---------- content : str The string content of the DSCRIPT script to be parsed. name : str, optional The name of the dscript project. If <code>None</code>, a random name is generated. numerickeys : bool, default=True If <code>True</code>, numeric string keys in the template section are automatically converted into integers. verbose : bool, default=False If <code>True</code>, the parser will output warnings for unrecognized lines outside of blocks. authentification : bool, default=True If <code>True</code>, the parser is expected that the first non empty line is # DSCRIPT SAVE FILE comment_chars : str, optional (default: "#%") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. continuation_marker : str, optional (default: "...") A string containing characters to indicate line continuation Any characters after the continuation marker are considered comment and are theorefore ignored Returns ------- dscript A new <code><a title="dscript.dscript" href="#dscript.dscript">dscript</a></code> instance populated with the content of the loaded file. Raises ------ ValueError If content does not start with the correct DSCRIPT header or the file format is invalid. Notes ----- **DSCRIPT SAVE FILE FORMAT** This script syntax is designed for creating dynamic and customizable input files, where variables, templates, and control attributes can be defined in a flexible manner. **Mandatory First Line:** Every DSCRIPT file must begin with the following line: ```plaintext # DSCRIPT SAVE FILE ``` **Structure Overview:** 1. **Global Parameters Section (Optional):** - This section defines global script settings, enclosed within curly braces `{}`. - Properties include: - <code>SECTIONS</code>: List of section names to be considered (e.g., `["DYNAMIC"]`). - <code>section</code>: Current section index (e.g., <code>0</code>). - <code>position</code>: Current script position in the order. - <code>role</code>: Defines the role of the script instance (e.g., `"dscript instance"`). - <code>description</code>: A short description of the script (e.g., `"dynamic script"`). - <code>userid</code>: Identifier for the user (e.g., `"dscript"`). - <code>version</code>: Script version (e.g., <code>0.1</code>). - <code>verbose</code>: Verbosity flag, typically a boolean (e.g., <code>False</code>). **Example:** ```plaintext { SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters } ``` 2. **Definitions Section:** - Variables are defined in Python-like syntax, allowing for dynamic variable substitution. - Variables can be numbers, strings, or lists, and they can include placeholders using `$` to delay execution or substitution. **Example:** ```plaintext d = 3 # Define a number periodic = "$p" # '$' prevents immediate evaluation of 'p' units = "$metal" # '$' prevents immediate evaluation of 'metal' dimension = "${d}" # Variable substitution boundary = ['p', 'p', 'p'] # List with a mix of variables and values atom_style = "$atomic" # String variable with delayed evaluation ``` 3. **Templates Section:** - This section provides a mapping between keys and their corresponding commands or instructions. - Each template can reference variables defined in the **Definitions** section or elsewhere, typically using the `${variable}` syntax. - **Syntax Variations**: Templates can be defined in several ways, including without blocks, with single- or multi-line blocks, and with ellipsis (<code>...</code>) as a line continuation marker. - **Single-line Template Without Block**: ```plaintext KEY: INSTRUCTION ``` - <code>KEY</code> is the identifier for the template (numeric or alphanumeric). - <code>INSTRUCTION</code> is the command or template text, which may reference variables. - **Single-line Template With Block**: ```plaintext KEY: [INSTRUCTION] ``` - Uses square brackets (<code>\[ ]</code>) around the <code>INSTRUCTION</code>, indicating that all instructions are part of the block. - **Multi-line Template With Block**: ```plaintext KEY: [ INSTRUCTION1 INSTRUCTION2 ... ] ``` - Begins with `KEY: [` and ends with a standalone <code>]</code> on a new line. - Instructions within the block can span multiple lines, and ellipses (<code>...</code>) at the end of a line are used to indicate that the line continues, ignoring any content following the ellipsis as comments. - Comments following ellipses are removed after parsing and do not become part of the block, preserving only the instructions. - **Multi-line Template With Continuation Marker (Ellipsis)**: - For templates with complex code containing square brackets (<code>\[ ]</code>), the ellipsis (<code>...</code>) can be used to prevent <code>]</code> from prematurely closing the block. The ellipsis will keep the line open across multiple lines, allowing brackets in the instructions. **Example:** ```plaintext example1: command ${value} # Single-line template without block example2: [command ${value}] # Single-line template with block # Multi-line template with block example3: [ command1 ${var1} command2 ${var2} ... # Line continues after ellipsis command3 ${var3} ... # Additional instruction continues ] # Multi-line template with ellipsis (handling square brackets) example4: [ A[0][1] ... # Ellipsis allows [ ] within instructions B[2][3] ... # Another instruction in the block ] ``` - **Key Points**: - **Blocks** allow grouping of multiple instructions for a single key, enclosed in square brackets. - **Ellipsis (<code>...</code>)** at the end of a line keeps the line open, preventing premature closing by <code>]</code>, especially useful if the template code includes square brackets (<code>\[ ]</code>). - **Comments** placed after the ellipsis are removed after parsing and are not part of the final block content. This flexibility supports both simple and complex template structures, allowing instructions to be grouped logically while keeping code and comments distinct. 4. **Attributes Section:** - Each template line can have customizable attributes to control behavior and conditions. - Default attributes include: - <code>facultative</code>: If <code>True</code>, the line is optional and can be removed if needed. - <code>eval</code>: If <code>True</code>, the line will be evaluated with Python's <code>eval()</code> function. - <code>readonly</code>: If <code>True</code>, the line cannot be modified later in the script. - <code>condition</code>: An expression that must be satisfied for the line to be included. - <code>condeval</code>: If <code>True</code>, the condition will be evaluated using <code>eval()</code>. - <code>detectvar</code>: If <code>True</code>, this creates variables in the **Definitions** section if they do not exist. **Example:** ```plaintext units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True} dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True} ``` **Note on Multiple Definitions** This example demonstrates how variables defined in the **Definitions** section are handled for each template. Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates can use different values for the same variable if redefined. **Example:** ```plaintext # DSCRIPT SAVE FILE # Definitions var = 10 # Template key1 key1: Template content with ${var} # Definitions var = 20 # Template key2 key2: Template content with ${var} # Template key3 key3:[ this is an undefined variable ${var31} this is another undefined variable ${var32} this variable is defined ${var} ] ``` **Parsing and Usage:** ```python # Parse content using parsesyntax() ds = dscript.parsesyntax(content) # Accessing templates and their variables print(ds.TEMPLATE['key1'].text) # Output: Template content with 10 print(ds.TEMPLATE['key2'].text) # Output: Template content with 20 ``` **Handling Undefined Variables:** Variables like `${var31}` and `${var32}` in <code>key3</code> are undefined. The parser will handle them based on your substitution logic or raise an error if they are required. **Important Notes:** - The parser processes the script sequentially. Definitions must appear before the templates that use them. - Templates capture the variable definitions at the time they are parsed. Redefining a variable affects only subsequent templates. - Comments outside of blocks are allowed and ignored by the parser. - Content within templates is treated as-is, allowing for any syntax required by the target system (e.g., LAMMPS commands).Advanced Example
Here's a more advanced example demonstrating the use of global definitions, local definitions, templates, and how to parse and render the template content. ```python content = ''' # GLOBAL DEFINITIONS dumpfile = $dump.LAMMPS dumpdt = 50 thermodt = 100 runtime = 5000 # LOCAL DEFINITIONS for step '0' dimension = 3 units = $si boundary = ['f', 'f', 'f'] atom_style = $smd atom_modify = ['map', 'array'] comm_modify = ['vel', 'yes'] neigh_modify = ['every', 10, 'delay', 0, 'check', 'yes'] newton = $off name = $SimulationBox # This is a comment line outside of blocks # ------------------------------------------ 0: [ % --------------[ Initialization Header (helper) for "${name}" ]-------------- # set a parameter to None or "" to remove the definition dimension ${dimension} units ${units} boundary ${boundary} atom_style ${atom_style} atom_modify ${atom_modify} comm_modify ${comm_modify} neigh_modify ${neigh_modify} newton ${newton} # ------------------------------------------ ] ''' # Parse the content ds = dscript.parsesyntax(content, verbose=True, authentification=False) # Access and print the rendered template print("Template 0 content:") print(ds.TEMPLATE[0].do()) ``` **Explanation:** - **Global Definitions:** Define variables that are accessible throughout the script. - **Local Definitions for Step '0':** Define variables specific to a particular step or template. - **Template Block:** Identified by `0: [ ... ]`, it contains the content where variables will be substituted. - **Comments:** Lines starting with `#` are comments and are ignored by the parser outside of template blocks. **Expected Output:** ``` Template 0 content: # --------------[ Initialization Header (helper) for "SimulationBox" ]-------------- # set a parameter to None or "" to remove the definition dimension 3 units si boundary ['f', 'f', 'f'] atom_style smd atom_modify ['map', 'array'] comm_modify ['vel', 'yes'] neigh_modify ['every', 10, 'delay', 0, 'check', 'yes'] newton off # ------------------------------------------ ``` **Notes:** - The <code>do()</code> method renders the template, substituting variables with their defined values. - Variables like `${dimension}` are replaced with their corresponding values defined in the local or global definitions. - The parser handles comments and blank lines appropriately, ensuring they don't interfere with the parsing logic.Expand source code
@classmethod def parsesyntax(cls, content, name=None, numerickeys=True, verbose=False, authentification=True, comment_chars="#%",continuation_marker="..."): """ Parse a DSCRIPT script from a string content. Parameters ---------- content : str The string content of the DSCRIPT script to be parsed. name : str, optional The name of the dscript project. If `None`, a random name is generated. numerickeys : bool, default=True If `True`, numeric string keys in the template section are automatically converted into integers. verbose : bool, default=False If `True`, the parser will output warnings for unrecognized lines outside of blocks. authentification : bool, default=True If `True`, the parser is expected that the first non empty line is # DSCRIPT SAVE FILE comment_chars : str, optional (default: "#%") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. continuation_marker : str, optional (default: "...") A string containing characters to indicate line continuation Any characters after the continuation marker are considered comment and are theorefore ignored Returns ------- dscript A new `dscript` instance populated with the content of the loaded file. Raises ------ ValueError If content does not start with the correct DSCRIPT header or the file format is invalid. Notes ----- **DSCRIPT SAVE FILE FORMAT** This script syntax is designed for creating dynamic and customizable input files, where variables, templates, and control attributes can be defined in a flexible manner. **Mandatory First Line:** Every DSCRIPT file must begin with the following line: ```plaintext # DSCRIPT SAVE FILE ``` **Structure Overview:** 1. **Global Parameters Section (Optional):** - This section defines global script settings, enclosed within curly braces `{}`. - Properties include: - `SECTIONS`: List of section names to be considered (e.g., `["DYNAMIC"]`). - `section`: Current section index (e.g., `0`). - `position`: Current script position in the order. - `role`: Defines the role of the script instance (e.g., `"dscript instance"`). - `description`: A short description of the script (e.g., `"dynamic script"`). - `userid`: Identifier for the user (e.g., `"dscript"`). - `version`: Script version (e.g., `0.1`). - `verbose`: Verbosity flag, typically a boolean (e.g., `False`). **Example:** ```plaintext { SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters } ``` 2. **Definitions Section:** - Variables are defined in Python-like syntax, allowing for dynamic variable substitution. - Variables can be numbers, strings, or lists, and they can include placeholders using `$` to delay execution or substitution. **Example:** ```plaintext d = 3 # Define a number periodic = "$p" # '$' prevents immediate evaluation of 'p' units = "$metal" # '$' prevents immediate evaluation of 'metal' dimension = "${d}" # Variable substitution boundary = ['p', 'p', 'p'] # List with a mix of variables and values atom_style = "$atomic" # String variable with delayed evaluation ``` 3. **Templates Section:** - This section provides a mapping between keys and their corresponding commands or instructions. - Each template can reference variables defined in the **Definitions** section or elsewhere, typically using the `${variable}` syntax. - **Syntax Variations**: Templates can be defined in several ways, including without blocks, with single- or multi-line blocks, and with ellipsis (`...`) as a line continuation marker. - **Single-line Template Without Block**: ```plaintext KEY: INSTRUCTION ``` - `KEY` is the identifier for the template (numeric or alphanumeric). - `INSTRUCTION` is the command or template text, which may reference variables. - **Single-line Template With Block**: ```plaintext KEY: [INSTRUCTION] ``` - Uses square brackets (`[ ]`) around the `INSTRUCTION`, indicating that all instructions are part of the block. - **Multi-line Template With Block**: ```plaintext KEY: [ INSTRUCTION1 INSTRUCTION2 ... ] ``` - Begins with `KEY: [` and ends with a standalone `]` on a new line. - Instructions within the block can span multiple lines, and ellipses (`...`) at the end of a line are used to indicate that the line continues, ignoring any content following the ellipsis as comments. - Comments following ellipses are removed after parsing and do not become part of the block, preserving only the instructions. - **Multi-line Template With Continuation Marker (Ellipsis)**: - For templates with complex code containing square brackets (`[ ]`), the ellipsis (`...`) can be used to prevent `]` from prematurely closing the block. The ellipsis will keep the line open across multiple lines, allowing brackets in the instructions. **Example:** ```plaintext example1: command ${value} # Single-line template without block example2: [command ${value}] # Single-line template with block # Multi-line template with block example3: [ command1 ${var1} command2 ${var2} ... # Line continues after ellipsis command3 ${var3} ... # Additional instruction continues ] # Multi-line template with ellipsis (handling square brackets) example4: [ A[0][1] ... # Ellipsis allows [ ] within instructions B[2][3] ... # Another instruction in the block ] ``` - **Key Points**: - **Blocks** allow grouping of multiple instructions for a single key, enclosed in square brackets. - **Ellipsis (`...`)** at the end of a line keeps the line open, preventing premature closing by `]`, especially useful if the template code includes square brackets (`[ ]`). - **Comments** placed after the ellipsis are removed after parsing and are not part of the final block content. This flexibility supports both simple and complex template structures, allowing instructions to be grouped logically while keeping code and comments distinct. 4. **Attributes Section:** - Each template line can have customizable attributes to control behavior and conditions. - Default attributes include: - `facultative`: If `True`, the line is optional and can be removed if needed. - `eval`: If `True`, the line will be evaluated with Python's `eval()` function. - `readonly`: If `True`, the line cannot be modified later in the script. - `condition`: An expression that must be satisfied for the line to be included. - `condeval`: If `True`, the condition will be evaluated using `eval()`. - `detectvar`: If `True`, this creates variables in the **Definitions** section if they do not exist. **Example:** ```plaintext units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True} dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True} ``` **Note on Multiple Definitions** This example demonstrates how variables defined in the **Definitions** section are handled for each template. Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates can use different values for the same variable if redefined. **Example:** ```plaintext # DSCRIPT SAVE FILE # Definitions var = 10 # Template key1 key1: Template content with ${var} # Definitions var = 20 # Template key2 key2: Template content with ${var} # Template key3 key3:[ this is an undefined variable ${var31} this is another undefined variable ${var32} this variable is defined ${var} ] ``` **Parsing and Usage:** ```python # Parse content using parsesyntax() ds = dscript.parsesyntax(content) # Accessing templates and their variables print(ds.TEMPLATE['key1'].text) # Output: Template content with 10 print(ds.TEMPLATE['key2'].text) # Output: Template content with 20 ``` **Handling Undefined Variables:** Variables like `${var31}` and `${var32}` in `key3` are undefined. The parser will handle them based on your substitution logic or raise an error if they are required. **Important Notes:** - The parser processes the script sequentially. Definitions must appear before the templates that use them. - Templates capture the variable definitions at the time they are parsed. Redefining a variable affects only subsequent templates. - Comments outside of blocks are allowed and ignored by the parser. - Content within templates is treated as-is, allowing for any syntax required by the target system (e.g., LAMMPS commands). **Advanced Example** Here's a more advanced example demonstrating the use of global definitions, local definitions, templates, and how to parse and render the template content. ```python content = ''' # GLOBAL DEFINITIONS dumpfile = $dump.LAMMPS dumpdt = 50 thermodt = 100 runtime = 5000 # LOCAL DEFINITIONS for step '0' dimension = 3 units = $si boundary = ['f', 'f', 'f'] atom_style = $smd atom_modify = ['map', 'array'] comm_modify = ['vel', 'yes'] neigh_modify = ['every', 10, 'delay', 0, 'check', 'yes'] newton = $off name = $SimulationBox # This is a comment line outside of blocks # ------------------------------------------ 0: [ % --------------[ Initialization Header (helper) for "${name}" ]-------------- # set a parameter to None or "" to remove the definition dimension ${dimension} units ${units} boundary ${boundary} atom_style ${atom_style} atom_modify ${atom_modify} comm_modify ${comm_modify} neigh_modify ${neigh_modify} newton ${newton} # ------------------------------------------ ] ''' # Parse the content ds = dscript.parsesyntax(content, verbose=True, authentification=False) # Access and print the rendered template print("Template 0 content:") print(ds.TEMPLATE[0].do()) ``` **Explanation:** - **Global Definitions:** Define variables that are accessible throughout the script. - **Local Definitions for Step '0':** Define variables specific to a particular step or template. - **Template Block:** Identified by `0: [ ... ]`, it contains the content where variables will be substituted. - **Comments:** Lines starting with `#` are comments and are ignored by the parser outside of template blocks. **Expected Output:** ``` Template 0 content: # --------------[ Initialization Header (helper) for "SimulationBox" ]-------------- # set a parameter to None or "" to remove the definition dimension 3 units si boundary ['f', 'f', 'f'] atom_style smd atom_modify ['map', 'array'] comm_modify ['vel', 'yes'] neigh_modify ['every', 10, 'delay', 0, 'check', 'yes'] newton off # ------------------------------------------ ``` **Notes:** - The `do()` method renders the template, substituting variables with their defined values. - Variables like `${dimension}` are replaced with their corresponding values defined in the local or global definitions. - The parser handles comments and blank lines appropriately, ensuring they don't interfere with the parsing logic. """ # Split the content into lines lines = content.splitlines() if not lines: raise ValueError("File/Content is empty or only contains blank lines.") # Initialize containers global_params = {} GLOBALdefinitions = lambdaScriptdata() LOCALdefinitions = lambdaScriptdata() template = {} attributes = {} # State variables inside_global_params = False global_params_content = "" inside_template_block = False current_template_key = None current_template_content = [] current_var_value = lambdaScriptdata() # Initialize line number line_number = 0 last_successful_line = 0 # Step 1: Authenticate the file if authentification: auth_line_found = False max_header_lines = 10 header_end_idx = -1 for idx, line in enumerate(lines[:max_header_lines]): stripped_line = line.strip() if not stripped_line: continue if stripped_line.startswith("# DSCRIPT SAVE FILE"): auth_line_found = True header_end_idx = idx break elif stripped_line.startswith("#") or stripped_line.startswith("%"): continue else: raise ValueError(f"Unexpected content before authentication line (# DSCRIPT SAVE FILE) at line {idx + 1}:\n{line}") if not auth_line_found: raise ValueError("File/Content is not a valid DSCRIPT file.") # Remove header lines lines = lines[header_end_idx + 1:] line_number = header_end_idx + 1 last_successful_line = line_number - 1 else: line_number = 0 last_successful_line = 0 # Process each line for idx, line in enumerate(lines): line_number += 1 line_content = line.rstrip('\n') # Determine if we're inside a template block if inside_template_block: # Extract the code with its eventual continuation_marker code_line = remove_comments( line_content, comment_chars=comment_chars, continuation_marker=continuation_marker, remove_continuation_marker=False, ).rstrip() # Check if line should continue if code_line.endswith(continuation_marker): # Append line up to the continuation marker endofline_index = line_content.rindex(continuation_marker) trimmed_content = line_content[:endofline_index].rstrip() if trimmed_content: current_template_content.append(trimmed_content) continue elif code_line.endswith("]"): # End of multi-line block closing_index = code_line.rindex(']') trimmed_content = code_line[:closing_index].rstrip() # Append any valid content before `]`, if non-empty if trimmed_content: current_template_content.append(trimmed_content) # End of template block content = '\n'.join(current_template_content) template[current_template_key] = ScriptTemplate( content=content, autorefresh=False, definitions=LOCALdefinitions, verbose=verbose, userid=current_template_key) # Refresh variables definitions template[current_template_key].refreshvar(globaldefinitions=GLOBALdefinitions) LOCALdefinitions = lambdaScriptdata() # Reset state for next block inside_template_block = False current_template_key = None current_template_content = [] last_successful_line = line_number continue else: # Append the entire original line content if not ending with `...` or `]` current_template_content.append(line_content) continue # Not inside a template block stripped_no_comments = remove_comments(line_content) # Ignore empty lines after removing comments if not stripped_no_comments.strip(): continue # If the original line is a comment line, skip it if line_content.strip().startswith("#") or line_content.strip().startswith("%"): continue stripped = stripped_no_comments.strip() # Handle start of a new template block template_block_match = re.match(r'^(\w+)\s*:\s*\[', stripped) if template_block_match: current_template_key = template_block_match.group(1) if inside_template_block: # Collect error context context_start = max(0, last_successful_line - 3) context_end = min(len(lines), line_number + 2) error_context_lines = lines[context_start:context_end] error_context = "" for i, error_line in enumerate(error_context_lines): line_num = context_start + i + 1 indicator = ">" if line_num == line_number else "*" if line_num == last_successful_line else " " error_context += f"{indicator} {line_num}: {error_line}\n" raise ValueError( f"Template block '{current_template_key}' starting at line {last_successful_line} (*) was not properly closed before starting a new one at line {line_number} (>).\n\n" f"Error context:\n{error_context}" ) else: inside_template_block = True idx_open_bracket = line_content.index('[') remainder = line_content[idx_open_bracket + 1:].strip() if remainder: remainder_code = remove_comments(remainder, comment_chars=comment_chars).rstrip() if remainder_code.endswith("]"): closing_index = remainder_code.rindex(']') content_line = remainder_code[:closing_index].strip() if content_line: current_template_content.append(content_line) content = '\n'.join(current_template_content) template[current_template_key] = ScriptTemplate( content=content, autorefresh=False, definitions=LOCALdefinitions, verbose=verbose, userid=current_template_key) template[current_template_key].refreshvar(globaldefinitions=GLOBALdefinitions) LOCALdefinitions = lambdaScriptdata() inside_template_block = False current_template_key = None current_template_content = [] last_successful_line = line_number continue else: current_template_content.append(remainder) last_successful_line = line_number continue # Handle start of global parameters if stripped.startswith('{') and not inside_global_params: if '}' in stripped: global_params_content = stripped cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" last_successful_line = line_number else: inside_global_params = True global_params_content = stripped continue # Handle global parameters inside {...} if inside_global_params: global_params_content += ' ' + stripped if '}' in stripped: inside_global_params = False cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" last_successful_line = line_number continue # Handle attributes attribute_match = re.match(r'^(\w+)\s*:\s*\{(.+)\}', stripped) if attribute_match: key, attr_content = attribute_match.groups() attributes[key] = {} cls._parse_attributes(attributes[key], attr_content.strip()) last_successful_line = line_number continue # Handle definitions definition_match = re.match(r'^(\w+)\s*=\s*(.+)', stripped) if definition_match: key, value = definition_match.groups() convertedvalue = cls._convert_value(value) if key in GLOBALdefinitions: if (GLOBALdefinitions.getattr(key) != convertedvalue) or \ (getattr(current_var_value, key) != convertedvalue): LOCALdefinitions.setattr(key, convertedvalue) else: GLOBALdefinitions.setattr(key, convertedvalue) last_successful_line = line_number setattr(current_var_value, key, convertedvalue) continue # Handle single-line templates template_match = re.match(r'^(\w+)\s*:\s*(.+)', stripped) if template_match: key, content = template_match.groups() template[key] = ScriptTemplate( content = content.strip(), autorefresh = False, definitions=LOCALdefinitions, verbose=verbose, userid=key) template[key].refreshvar(globaldefinitions=GLOBALdefinitions) LOCALdefinitions = lambdaScriptdata() last_successful_line = line_number continue # Unrecognized line if verbose: print(f"Warning: Unrecognized line at {line_number}: {line_content}") last_successful_line = line_number continue # At the end, check if any template block was left unclosed if inside_template_block: # Collect error context context_start = max(0, last_successful_line - 3) context_end = min(len(lines), last_successful_line + 3) error_context_lines = lines[context_start:context_end] error_context = "" for i, error_line in enumerate(error_context_lines): line_num = context_start + i indicator = ">" if line_num == last_successful_line else " " error_context += f"{indicator} {line_num}: {error_line}\n" raise ValueError( f"Template block '{current_template_key}' starting at line {last_successful_line} was not properly closed.\n\n" f"Error context:\n{error_context}" ) # Apply attributes to templates for key in attributes: if key in template: for attr_name, attr_value in attributes[key].items(): setattr(template[key], attr_name, attr_value) template[key]._autorefresh = True # restore the default behavior for the end-user else: raise ValueError(f"Attributes found for undefined template key: {key}") # Create and return new instance if name is None: name = autoname(8) instance = cls( name=name, SECTIONS=global_params.get('SECTIONS', ['DYNAMIC']), section=global_params.get('section', 0), position=global_params.get('position', 0), role=global_params.get('role', 'dscript instance'), description=global_params.get('description', 'dynamic script'), userid=global_params.get('userid', 'dscript'), version=global_params.get('version', 0.1), verbose=global_params.get('verbose', False) ) # Convert numeric string keys to integers if numerickeys is True if numerickeys: numeric_template = {} for key, value in template.items(): if key.isdigit(): numeric_template[int(key)] = value else: numeric_template[key] = value template = numeric_template # Set definitions and template instance.DEFINITIONS = GLOBALdefinitions instance.TEMPLATE = template # Refresh variables instance.set_all_variables() # Check variables instance.check_all_variables(verbose=False) return instance def parsesyntax_legacy(content, name=None, numerickeys=True)-
Parse a script from a string content. [ ------------------------------------------------------] [ Legacy parsesyntax method for backward compatibility. ] [ ------------------------------------------------------]
Parameters
content:str- The string content of the script to be parsed.
name:str- The name of the dscript project (if None, it is set randomly)
numerickeys:bool, default=True- If True, numeric string keys in the template section are automatically converted into integers.
Returns
Raises
ValueError- If content does not start with the correct DSCRIPT header or the file format is invalid.
Notes
- The file is expected to follow the same structured format as the one produced by the
save()method. - The method processes global parameters, definitions, template lines/items, and attributes. If the file
includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers
if
numerickeys=True. - The script structure is dynamically rebuilt, and each section (global parameters, definitions,
template, and attributes) is correctly parsed and assigned to the corresponding parts of the
dscriptinstance.
PIZZA.DSCRIPT SAVE FILE FORMAT
This script syntax is designed for creating dynamic and customizable input files, where variables, templates, and control attributes can be defined in a flexible manner.
Mandatory First Line:
Every DSCRIPT file must begin with the following line: # DSCRIPT SAVE FILE
Structure Overview:
-
Global Parameters Section (Optional):
- This section defines global script settings, enclosed within curly braces
{ }. - Properties include:
SECTIONS: List of section names to be considered (e.g.,["DYNAMIC"]).section: Current section index (e.g.,0).position: Current script position in the order.role: Defines the role of the script instance (e.g.,"dscript instance").description: A short description of the script (e.g.,"dynamic script").userid: Identifier for the user (e.g.,"dscript").version: Script version (e.g.,0.1).verbose: Verbosity flag, typically a boolean (e.g.,False).
Example:
{ SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters } - This section defines global script settings, enclosed within curly braces
-
Definitions Section:
- Variables are defined in Python-like syntax, allowing for dynamic variable substitution.
- Variables can be numbers, strings, or lists, and they can include placeholders using
$to delay execution or substitution.
Example:
d = 3 # Define a number periodic = "$p" # '$' prevents immediate evaluation of 'p' units = "$metal" # '$' prevents immediate evaluation of 'metal' dimension = "${d}" # Variable substitution boundary = ['p', 'p', 'p'] # List with a mix of variables and values atom_style = "$atomic" # String variable with delayed evaluation -
Templates Section:
- This section provides a mapping between keys and their corresponding commands or instructions.
- The templates reference variables defined in the Definitions section or elsewhere.
- Syntax:
KEY: INSTRUCTIONwhere:KEYcan be numeric or alphanumeric.INSTRUCTIONrepresents a command template, often referring to variables using${variable}notation.
Example:
units: units ${units} # Template uses the 'units' variable dim: dimension ${dimension} # Template for setting the dimension bound: boundary ${boundary} # Template for boundary settings lattice: lattice ${lattice} # Lattice template -
Attributes Section:
- Each template line can have customizable attributes to control behavior and conditions.
- Default attributes include:
facultative: IfTrue, the line is optional and can be removed if needed.eval: IfTrue, the line will be evaluated with Python'seval()function.readonly: IfTrue, the line cannot be modified later in the script.condition: An expression that must be satisfied for the line to be included.condeval: IfTrue, the condition will be evaluated usingeval().detectvar: IfTrue, this creates variables in the Definitions section if they do not exist.
Example:
units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True} dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True}
Note On Multiple Definitions
This example demonstrates how variables defined in the
Definitionssection are handled for each template. Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates can use different values for the same variable if redefined.content = "" "
DSCRIPT SAVE FILE
Definitions
var = 10
Template ky1
key1: Template content with ${var}
Definitions
var = 20
Template key2
key2: Template content with ${var}
Template key3
key3:[ this is an underfined variable ${var31} this is an another underfined variable ${var32} this variables is defined ${var} ]
"" "
Parse content using parsesyntax()
ds = dscript.parsesyntax(content)
Key1 should use the first definition of 'var' (10)
print(ds.key1.definitions.var) # Output: Template content with 10
Key2 should use the updated definition of 'var' (20)
print(ds.key2.definitions.var) # Output: Template content with 10
Expand source code
@classmethod def parsesyntax_legacy(cls, content, name=None, numerickeys=True): """ Parse a script from a string content. [ ------------------------------------------------------] [ Legacy parsesyntax method for backward compatibility. ] [ ------------------------------------------------------] Parameters ---------- content : str The string content of the script to be parsed. name : str The name of the dscript project (if None, it is set randomly) numerickeys : bool, default=True If True, numeric string keys in the template section are automatically converted into integers. Returns ------- dscript A new `dscript` instance populated with the content of the loaded file. Raises ------ ValueError If content does not start with the correct DSCRIPT header or the file format is invalid. Notes ----- - The file is expected to follow the same structured format as the one produced by the `save()` method. - The method processes global parameters, definitions, template lines/items, and attributes. If the file includes numeric keys as strings (e.g., "0", "1"), they can be automatically converted into integers if `numerickeys=True`. - The script structure is dynamically rebuilt, and each section (global parameters, definitions, template, and attributes) is correctly parsed and assigned to the corresponding parts of the `dscript` instance. PIZZA.DSCRIPT SAVE FILE FORMAT ------------------------------- This script syntax is designed for creating dynamic and customizable input files, where variables, templates, and control attributes can be defined in a flexible manner. ### Mandatory First Line: Every DSCRIPT file must begin with the following line: # DSCRIPT SAVE FILE ### Structure Overview: 1. **Global Parameters Section (Optional):** - This section defines global script settings, enclosed within curly braces `{ }`. - Properties include: - `SECTIONS`: List of section names to be considered (e.g., `["DYNAMIC"]`). - `section`: Current section index (e.g., `0`). - `position`: Current script position in the order. - `role`: Defines the role of the script instance (e.g., `"dscript instance"`). - `description`: A short description of the script (e.g., `"dynamic script"`). - `userid`: Identifier for the user (e.g., `"dscript"`). - `version`: Script version (e.g., `0.1`). - `verbose`: Verbosity flag, typically a boolean (e.g., `False`). Example: ``` { SECTIONS = ['INITIALIZATION', 'SIMULATION'] # Global script parameters } ``` 2. **Definitions Section:** - Variables are defined in Python-like syntax, allowing for dynamic variable substitution. - Variables can be numbers, strings, or lists, and they can include placeholders using `$` to delay execution or substitution. Example: ``` d = 3 # Define a number periodic = "$p" # '$' prevents immediate evaluation of 'p' units = "$metal" # '$' prevents immediate evaluation of 'metal' dimension = "${d}" # Variable substitution boundary = ['p', 'p', 'p'] # List with a mix of variables and values atom_style = "$atomic" # String variable with delayed evaluation ``` 3. **Templates Section:** - This section provides a mapping between keys and their corresponding commands or instructions. - The templates reference variables defined in the **Definitions** section or elsewhere. - Syntax: ``` KEY: INSTRUCTION ``` where: - `KEY` can be numeric or alphanumeric. - `INSTRUCTION` represents a command template, often referring to variables using `${variable}` notation. Example: ``` units: units ${units} # Template uses the 'units' variable dim: dimension ${dimension} # Template for setting the dimension bound: boundary ${boundary} # Template for boundary settings lattice: lattice ${lattice} # Lattice template ``` 4. **Attributes Section:** - Each template line can have customizable attributes to control behavior and conditions. - Default attributes include: - `facultative`: If `True`, the line is optional and can be removed if needed. - `eval`: If `True`, the line will be evaluated with Python's `eval()` function. - `readonly`: If `True`, the line cannot be modified later in the script. - `condition`: An expression that must be satisfied for the line to be included. - `condeval`: If `True`, the condition will be evaluated using `eval()`. - `detectvar`: If `True`, this creates variables in the **Definitions** section if they do not exist. Example: ``` units: {facultative=False, eval=False, readonly=False, condition="${units}", condeval=False, detectvar=True} dim: {facultative=False, eval=False, readonly=False, condition=None, condeval=False, detectvar=True} ``` Note on multiple definitions ----------------------------- This example demonstrates how variables defined in the `Definitions` section are handled for each template. Each template retains its own snapshot of the variable definitions at the time it is created, ensuring that templates can use different values for the same variable if redefined. content = "" " # DSCRIPT SAVE FILE # Definitions var = 10 # Template ky1 key1: Template content with ${var} # Definitions var = 20 # Template key2 key2: Template content with ${var} # Template key3 key3:[ this is an underfined variable ${var31} this is an another underfined variable ${var32} this variables is defined ${var} ] "" " # Parse content using parsesyntax() ds = dscript.parsesyntax(content) # Key1 should use the first definition of 'var' (10) print(ds.key1.definitions.var) # Output: Template content with 10 # Key2 should use the updated definition of 'var' (20) print(ds.key2.definitions.var) # Output: Template content with 10 """ # Split the content into lines lines = content.splitlines() lines = [line for line in lines if line.strip()] # Remove blank or empty lines # Raise an error if no content is left after removing blank lines if not lines: raise ValueError("File/Content is empty or only contains blank lines.") # Initialize containers for global parameters, definitions, templates, and attributes global_params = {} definitions = lambdaScriptdata() template = {} attributes = {} # State variables to handle multi-line global parameters and attributes inside_global_params = False inside_attributes = False current_attr_key = None # Ensure this is properly initialized global_params_content = "" inside_template_block = False # Track if we are inside a multi-line template current_template_key = None # Track the current template key current_template_content = [] # Store lines for the current template content # Step 1: Authenticate the file if not lines[0].strip().startswith("# DSCRIPT SAVE FILE"): raise ValueError("File/Content is not a valid DSCRIPT file.") # Step 2: Process each line dynamically for line in lines[1:]: stripped = line.strip() # Ignore empty lines and comments if not stripped or stripped.startswith("#"): continue # Remove trailing comments stripped = remove_comments(stripped) # Step 3: Handle global parameters inside {...} if stripped.startswith("{"): # Found the opening {, start accumulating global parameters inside_global_params = True # Remove the opening { and accumulate the remaining content global_params_content = stripped[stripped.index('{') + 1:].strip() # Check if the closing } is also on the same line if '}' in global_params_content: global_params_content = global_params_content[:global_params_content.index('}')].strip() inside_global_params = False # We found the closing } on the same line # Now parse the global parameters block cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" # Reset for the next block continue if inside_global_params: # Accumulate content until the closing } is found if stripped.endswith("}"): # Found the closing }, accumulate and process the entire block global_params_content += " " + stripped[:stripped.index('}')].strip() inside_global_params = False # Finished reading global parameters block # Now parse the entire global parameters block cls._parse_global_params(global_params_content.strip(), global_params) global_params_content = "" # Reset for the next block if necessary else: # Continue accumulating if } is not found global_params_content += " " + stripped continue # Step 4: Detect the start of a multi-line template block inside [...] if not inside_template_block: template_match = re.match(r'(\w+)\s*:\s*\[', stripped) if template_match: current_template_key = template_match.group(1) # Capture the key inside_template_block = True current_template_content = [] # Reset content list continue # If inside a template block, accumulate lines until we find the closing ] if inside_template_block: if stripped == "]": # End of the template block, join the content and store it template[current_template_key] = ScriptTemplate( current_template_content, definitions=lambdaScriptdata(**definitions), # Clone current global definitions verbose=True, userid=current_template_key ) template[current_template_key].refreshvar() inside_template_block = False current_template_key = None current_template_content = [] else: # Accumulate the current line (without surrounding spaces) current_template_content.append(stripped) continue # Step 5: Handle attributes inside {...} if inside_attributes and stripped.endswith("}"): # Finish processing attributes for the current key cls._parse_attributes(attributes[current_attr_key], stripped[:-1]) # Remove trailing } inside_attributes = False current_attr_key = None continue if inside_attributes: # Continue accumulating attributes cls._parse_attributes(attributes[current_attr_key], stripped) continue # Step 6: Determine if the line is a definition, template, or attribute definition_match = re.match(r'(\w+)\s*=\s*(.+)', stripped) template_match = re.match(r'(\w+)\s*:\s*(?!\s*\{.*\}\s*$)(.+)', stripped) # template_match = re.match(r'(\w+)\s*:\s*(?!\{)(.+)', stripped) attribute_match = re.match(r'(\w+)\s*:\s*\{\s*(.+)\s*\}', stripped) # attribute_match = re.match(r'(\w+)\s*:\s*\{(.+)\}', stripped) if definition_match: # Line is a definition (key=value) key, value = definition_match.groups() definitions.setattr(key,cls._convert_value(value)) elif template_match and not inside_template_block: # Line is a template (key: content) key, content = template_match.groups() template[key] = ScriptTemplate( content, definitions=lambdaScriptdata(**definitions), # Clone current definitions verbose=True, userid=current_template_key) template[key].refreshvar() elif attribute_match: # Line is an attribute (key:{attributes...}) current_attr_key, attr_content = attribute_match.groups() attributes[current_attr_key] = {} cls._parse_attributes(attributes[current_attr_key], attr_content) inside_attributes = not stripped.endswith("}") # Step 7: Validation and Reconstruction # Make sure there are no attributes without a template entry for key in attributes: if key not in template: raise ValueError(f"Attributes found for undefined template key: {key}") # Apply attributes to the corresponding template object for attr_name, attr_value in attributes[key].items(): setattr(template[key], attr_name, attr_value) # Step 7: Create and return a new dscript instance if name is None: name = autoname(8) instance = cls( name = name, SECTIONS=global_params.get('SECTIONS', ['DYNAMIC']), section=global_params.get('section', 0), position=global_params.get('position', 0), role=global_params.get('role', 'dscript instance'), description=global_params.get('description', 'dynamic script'), userid=global_params.get('userid', 'dscript'), version=global_params.get('version', 0.1), verbose=global_params.get('verbose', False) ) # Convert numeric string keys to integers if numerickeys is True if numerickeys: numeric_template = {} for key, value in template.items(): # Check if the key is a numeric string if key.isdigit(): numeric_template[int(key)] = value else: numeric_template[key] = value template = numeric_template # Set definitions and template instance.DEFINITIONS = definitions instance.TEMPLATE = template # Refresh variables (ensure that variables are detected and added to definitions) instance.set_all_variables() # Check eval instance.check_all_variables(verbose=False) # return the new instance return instance def write(scriptcontent, filename=None, foldername=None, overwrite=False)-
Writes the provided script content to a specified file in a given folder, with a header if necessary.
Parameters
scriptcontent:str- The content to be written to the file.
filename:str, optional- The name of the file. If not provided, a random name will be generated.
The extension
.txtwill be appended if not already present. foldername:str, optional- The folder where the file will be saved. If not provided, the current working directory is used.
overwrite:bool, optional- If False (default), raises a
FileExistsErrorif the file already exists. If True, the file will be overwritten if it exists.
Returns
str- The full path to the written file.
Raises
FileExistsError- If the file already exists and
overwriteis set to False.
Notes
- A header is prepended to the content if it does not already exist, using the
headermethod. - The header includes metadata such as the current date, username, hostname, and file details.
Expand source code
@staticmethod @staticmethod def write(scriptcontent, filename=None, foldername=None, overwrite=False): """ Writes the provided script content to a specified file in a given folder, with a header if necessary. Parameters ---------- scriptcontent : str The content to be written to the file. filename : str, optional The name of the file. If not provided, a random name will be generated. The extension `.txt` will be appended if not already present. foldername : str, optional The folder where the file will be saved. If not provided, the current working directory is used. overwrite : bool, optional If False (default), raises a `FileExistsError` if the file already exists. If True, the file will be overwritten if it exists. Returns ------- str The full path to the written file. Raises ------ FileExistsError If the file already exists and `overwrite` is set to False. Notes ----- - A header is prepended to the content if it does not already exist, using the `header` method. - The header includes metadata such as the current date, username, hostname, and file details. """ # Generate a random name if filename is not provided if filename is None: filename = autoname(8) # Generates a random name of 8 letters # Ensure the filename ends with '.txt' if not filename.endswith('.txt'): filename += '.txt' # Handle foldername and relative paths if foldername is None or foldername == "": # If foldername is empty or None, use current working directory for relative paths if not os.path.isabs(filename): filepath = os.path.join(os.getcwd(), filename) else: filepath = filename # If filename is absolute, use it directly else: # If foldername is provided and filename is not absolute, use foldername if not os.path.isabs(filename): filepath = os.path.join(foldername, filename) else: filepath = filename # Check if file already exists, raise exception if it does and overwrite is False if os.path.exists(filepath) and not overwrite: raise FileExistsError(f"The file '{filepath}' already exists.") # Count total and non-empty lines in the content total_lines = len(scriptcontent.splitlines()) non_empty_lines = sum(1 for line in scriptcontent.splitlines() if line.strip()) # Prepare header if not already present if not scriptcontent.startswith("# DSCRIPT SAVE FILE"): fname = os.path.basename(filepath) # Extracts the filename (e.g., "myscript.txt") name, _ = os.path.splitext(fname) # Removes the extension, e.g., "myscript" metadata = get_metadata() # retrieve all metadata (statically) header = dscript.header(name=name, verbosity=True,style=1,filepath=filepath, version = metadata["version"], license = metadata["license"], email = metadata["email"]) # Add line count information to the header footer = frame_header( lines=[ f"Total lines written: {total_lines}", f"Non-empty lines: {non_empty_lines}" ], style=1 ) scriptcontent = header + "\n" + scriptcontent + "\n" + footer # Write the content to the file with open(filepath, 'w') as file: file.write(scriptcontent) return filepath
Methods
def add_dynamic_script(self, key, content='', userid=None, definitions=None, verbose=None, **USER)-
Add a dynamic script step to the dscript object.
Parameters:
key : str The key for the dynamic script (usually an index or step identifier). content : str or list of str, optional The content (template) of the script step. definitions : lambdaScriptdata, optional The merged variable space (STATIC + GLOBAL + LOCAL). verbose : bool, optional If None, self.verbose will be used. Controls verbosity of the template. USER : dict Additional user variables that override the definitions for this step.
Expand source code
def add_dynamic_script(self, key, content="", userid=None, definitions=None, verbose=None, **USER): """ Add a dynamic script step to the dscript object. Parameters: ----------- key : str The key for the dynamic script (usually an index or step identifier). content : str or list of str, optional The content (template) of the script step. definitions : lambdaScriptdata, optional The merged variable space (STATIC + GLOBAL + LOCAL). verbose : bool, optional If None, self.verbose will be used. Controls verbosity of the template. USER : dict Additional user variables that override the definitions for this step. """ if definitions is None: definitions = lambdaScriptdata() if verbose is None: verbose = self.verbose # Create a new ScriptTemplate and add it to the TEMPLATE self.TEMPLATE[key] = ScriptTemplate( content=content, definitions=self.DEFINITIONS+definitions, verbose=verbose, userid = key if userid is None else userid, **USER ) def check_all_variables(self, verbose=True, seteval=True, output=False)-
Checks for undefined variables for each TEMPLATE key in the dscript object.
Parameters:
verbose : bool, optional, default=True If True, prints information about variables for each TEMPLATE key. Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined.
seteval : bool, optional, default=True If True, sets the
evalattribute to True if at least one variable is defined or set to its default value.output : bool, optional, default=False If True, returns a dictionary with lists of default variables, set variables, and undefined variables.
Returns:
out : dict, optional If
output=True, returns a dictionary with the following structure: - "defaultvalues": List of variables set to their default value (${varname}). - "setvalues": List of variables defined with values other than their default. - "undefined": List of variables that are undefined.Expand source code
def check_all_variables(self, verbose=True, seteval=True, output=False): """ Checks for undefined variables for each TEMPLATE key in the dscript object. Parameters: ----------- verbose : bool, optional, default=True If True, prints information about variables for each TEMPLATE key. Shows [-] if the variable is set to its default value, [+] if it is defined, and [ ] if it is undefined. seteval : bool, optional, default=True If True, sets the `eval` attribute to True if at least one variable is defined or set to its default value. output : bool, optional, default=False If True, returns a dictionary with lists of default variables, set variables, and undefined variables. Returns: -------- out : dict, optional If `output=True`, returns a dictionary with the following structure: - "defaultvalues": List of variables set to their default value (${varname}). - "setvalues": List of variables defined with values other than their default. - "undefined": List of variables that are undefined. """ out = {"defaultvalues": [], "setvalues": [], "undefined": []} for key in self.TEMPLATE: template = self.TEMPLATE[key] # Call the check_variables method of ScriptTemplate for each TEMPLATE key result = template.check_variables(verbose=verbose, seteval=seteval) # Update the output dictionary if needed out["defaultvalues"].extend(result["defaultvalues"]) out["setvalues"].extend(result["setvalues"]) out["undefined"].extend(result["undefined"]) if output: return out def createEmptyVariables(self, vars)-
Creates empty variables in DEFINITIONS if they don't already exist.
Parameters:
vars : str or list of str The variable name or list of variable names to be created in DEFINITIONS.
Expand source code
def createEmptyVariables(self, vars): """ Creates empty variables in DEFINITIONS if they don't already exist. Parameters: ----------- vars : str or list of str The variable name or list of variable names to be created in DEFINITIONS. """ if isinstance(vars, str): vars = [vars] # Convert single variable name to list for uniform processing for varname in vars: if varname not in self.DEFINITIONS: self.DEFINITIONS.setattr(varname,"${" + varname + "}") def detect_all_variables(self)-
Detects all variables across all templates in the dscript object.
This method iterates through all ScriptTemplate objects in the dscript and collects variables from each template using the detect_variables method.
Returns:
list A sorted list of unique variables detected in all templates.
Expand source code
def detect_all_variables(self): """ Detects all variables across all templates in the dscript object. This method iterates through all ScriptTemplate objects in the dscript and collects variables from each template using the detect_variables method. Returns: -------- list A sorted list of unique variables detected in all templates. """ all_variables = set() # Use a set to avoid duplicates # Iterate through all templates in the dscript object for template_key, template in self.TEMPLATE.items(): # Ensure the template is a ScriptTemplate and has the detect_variables method if isinstance(template, ScriptTemplate): detected_vars = template.detect_variables() all_variables.update(detected_vars) # Add the detected variables to the set return sorted(all_variables) # Return a sorted list of unique variables def do(self, printflag=None, verbose=None, softrun=False, return_definitions=False, comment_chars='#%', **USER)-
Executes or previews all
ScriptTemplateinstances inTEMPLATE, concatenating their processed content. Allows for optional headers and footers based on verbosity settings, and offers a preliminary preview mode withsoftrun. Accumulates definitions across all templates ifreturn_definitions=True.Parameters
printflag:bool, optional- If
True, enables print output during execution. Defaults to the instance's print flag ifNone. verbose:bool, optional- If
True, includes headers and footers in the output, providing additional detail. Defaults to the instance's verbosity setting ifNone. softrun:bool, optional- If
True, executes the script in a preliminary mode: - Bypasses full variable substitution for a preview of the content, useful for validating structure. - IfFalse(default), performs full processing, including variable substitutions and evaluations. return_definitions:bool, optional- If
True, returns a tuple where the second element contains accumulated definitions from all templates. IfFalse(default), returns only the concatenated output. comment_chars:str, optional(default: "#%")- A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes.
**USER:keyword arguments- Allows for the provision of additional user-defined definitions, where each keyword represents a definition key and the associated value represents the definition's content. These definitions can override or supplement template-level definitions during execution.
Returns
strortuple-
- If
return_definitions=False, returns the concatenated output of allScriptTemplateinstances, with optional headers, footers, and execution summary based on verbosity. - If
return_definitions=True, returns a tuple of (output,accumulated_definitions), whereaccumulated_definitionscontains all definitions used across templates.
- If
Notes
- Each
ScriptTemplateinTEMPLATEis processed individually using its owndo()method. - The
softrunmode provides a preliminary content preview without full variable substitution, helpful for inspecting the script structure or gathering local definitions. - When
verboseis enabled, the method includes detailed headers, footers, and a summary of processed and ignored items, providing insight into the script's construction and variable usage. - Accumulated definitions from each
ScriptTemplateare combined ifreturn_definitions=True, which can be useful for tracking all variables and definitions applied across the templates.
Example
>>> dscript_instance = dscript(name="ExampleScript") >>> dscript_instance.TEMPLATE[0] = ScriptTemplate( ... content=["units ${units}", "boundary ${boundary}"], ... definitions=lambdaScriptdata(units="lj", boundary="p p p"), ... attributes={'eval': True} ... ) >>> dscript_instance.do(verbose=True, units="real") # Output: # -------------- # TEMPLATE "ExampleScript" # -------------- units real boundary p p p # ---> Total items: 2 - Ignored items: 0Expand source code
def do(self, printflag=None, verbose=None, softrun=False, return_definitions=False,comment_chars="#%", **USER): """ Executes or previews all `ScriptTemplate` instances in `TEMPLATE`, concatenating their processed content. Allows for optional headers and footers based on verbosity settings, and offers a preliminary preview mode with `softrun`. Accumulates definitions across all templates if `return_definitions=True`. Parameters ---------- printflag : bool, optional If `True`, enables print output during execution. Defaults to the instance's print flag if `None`. verbose : bool, optional If `True`, includes headers and footers in the output, providing additional detail. Defaults to the instance's verbosity setting if `None`. softrun : bool, optional If `True`, executes the script in a preliminary mode: - Bypasses full variable substitution for a preview of the content, useful for validating structure. - If `False` (default), performs full processing, including variable substitutions and evaluations. return_definitions : bool, optional If `True`, returns a tuple where the second element contains accumulated definitions from all templates. If `False` (default), returns only the concatenated output. comment_chars : str, optional (default: "#%") A string containing characters to identify the start of a comment. Any of these characters will mark the beginning of a comment unless within quotes. **USER : keyword arguments Allows for the provision of additional user-defined definitions, where each keyword represents a definition key and the associated value represents the definition's content. These definitions can override or supplement template-level definitions during execution. Returns ------- str or tuple - If `return_definitions=False`, returns the concatenated output of all `ScriptTemplate` instances, with optional headers, footers, and execution summary based on verbosity. - If `return_definitions=True`, returns a tuple of (`output`, `accumulated_definitions`), where `accumulated_definitions` contains all definitions used across templates. Notes ----- - Each `ScriptTemplate` in `TEMPLATE` is processed individually using its own `do()` method. - The `softrun` mode provides a preliminary content preview without full variable substitution, helpful for inspecting the script structure or gathering local definitions. - When `verbose` is enabled, the method includes detailed headers, footers, and a summary of processed and ignored items, providing insight into the script's construction and variable usage. - Accumulated definitions from each `ScriptTemplate` are combined if `return_definitions=True`, which can be useful for tracking all variables and definitions applied across the templates. Example ------- >>> dscript_instance = dscript(name="ExampleScript") >>> dscript_instance.TEMPLATE[0] = ScriptTemplate( ... content=["units ${units}", "boundary ${boundary}"], ... definitions=lambdaScriptdata(units="lj", boundary="p p p"), ... attributes={'eval': True} ... ) >>> dscript_instance.do(verbose=True, units="real") # Output: # -------------- # TEMPLATE "ExampleScript" # -------------- units real boundary p p p # ---> Total items: 2 - Ignored items: 0 """ printflag = self.printflag if printflag is None else printflag verbose = self.verbose if verbose is None else verbose header = f"# --------------[ TEMPLATE \"{self.name}\" ]--------------" if verbose else "" footer = "# --------------------------------------------" if verbose else "" # Initialize output, counters, and optional definitions accumulator output = [header] non_empty_lines = 0 ignored_lines = 0 accumulated_definitions = lambdaScriptdata() if return_definitions else None for key, template in self.TEMPLATE.items(): # Process each template with softrun if enabled, otherwise use full processing result = template.do(softrun=softrun,USER=lambdaScriptdata(**USER)) if result: # Apply comment removal based on verbosity final_result = result if verbose else remove_comments(result,comment_chars=comment_chars) if final_result or verbose: output.append(final_result) non_empty_lines += 1 else: ignored_lines += 1 # Accumulate definitions if return_definitions is enabled if return_definitions: accumulated_definitions += template.definitions else: ignored_lines += 1 # Add footer summary if verbose nel_word = 'items' if non_empty_lines > 1 else 'item' il_word = 'items' if ignored_lines > 1 else 'item' footer += f"\n# ---> Total {nel_word}: {non_empty_lines} - Ignored {il_word}: {ignored_lines}" if verbose else "" output.append(footer) # Concatenate output and determine return type based on return_definitions output_content = "\n".join(output) return (output_content, accumulated_definitions) if return_definitions else output_content def generator(self)-
Returns
STR- generated code corresponding to dscript (using dscript syntax/language).
Expand source code
def generator(self): """ Returns ------- STR generated code corresponding to dscript (using dscript syntax/language). """ return self.save(generatoronly=True) def get_attributes_by_index(self, index)-
Returns the attributes of the ScriptTemplate at the specified index.
Expand source code
def get_attributes_by_index(self, index): """ Returns the attributes of the ScriptTemplate at the specified index.""" key = list(self.TEMPLATE.keys())[index] return self.TEMPLATE[key].attributes def get_content_by_index(self, index, do=True, protected=True)-
Returns the content of the ScriptTemplate at the specified index.
Parameters:
index : int The index of the template in the TEMPLATE dictionary. do : bool, optional (default=True) If True, the content will be processed based on conditions and evaluation flags. protected : bool, optional (default=True) Controls whether variable evaluation is protected (e.g., prevents overwriting certain definitions).
Returns:
str or list of str The content of the template after processing, or an empty string if conditions or evaluation flags block it.
Expand source code
def get_content_by_index(self, index, do=True, protected=True): """ Returns the content of the ScriptTemplate at the specified index. Parameters: ----------- index : int The index of the template in the TEMPLATE dictionary. do : bool, optional (default=True) If True, the content will be processed based on conditions and evaluation flags. protected : bool, optional (default=True) Controls whether variable evaluation is protected (e.g., prevents overwriting certain definitions). Returns: -------- str or list of str The content of the template after processing, or an empty string if conditions or evaluation flags block it. """ key = list(self.TEMPLATE.keys())[index] s = self.TEMPLATE[key].content att = self.TEMPLATE[key].attributes # Return an empty string if the facultative attribute is True and do is True if att["facultative"] and do: return "" # Evaluate the condition (if any) if att["condition"] is not None: cond = eval(self.DEFINITIONS.formateval(att["condition"], protected)) else: cond = True # If the condition is met, process the content if cond: # Apply formateval only if the eval attribute is True and do is True if att["eval"] and do: if isinstance(s, list): # Apply formateval to each item in the list if s is a list return [self.DEFINITIONS.formateval(line, protected) for line in s] else: # Apply formateval to the single string content return self.DEFINITIONS.formateval(s, protected) else: return s # Return the raw content if no evaluation is needed elif do: return "" # Return an empty string if the condition is not met and do is True else: return s # Return the raw content if do is False def items(self)-
Expand source code
def items(self): return ((key, s.content) for key, s in self.TEMPLATE.items()) def keys(self)-
Return the keys of the TEMPLATE.
Expand source code
def keys(self): """Return the keys of the TEMPLATE.""" return self.TEMPLATE.keys() def pipescript(self, *keys, printflag=None, verbose=None, verbosity=None, **USER)-
Returns a pipescript object by combining script objects corresponding to the given keys.
Parameters:
keys : one or more keys that correspond to the
TEMPLATEentries. printflag : bool, optional Whether to enable printing of additional information. verbose : bool, optional Whether to run in verbose mode for debugging or detailed output. *USER : dict, optional Additional user-defined variables to pass into the script.Returns:
A
pipescriptobject that combines the script objects generated from the selected dscript subobjects.Expand source code
def pipescript(self, *keys, printflag=None, verbose=None, verbosity=None, **USER): """ Returns a pipescript object by combining script objects corresponding to the given keys. Parameters: ----------- *keys : one or more keys that correspond to the `TEMPLATE` entries. printflag : bool, optional Whether to enable printing of additional information. verbose : bool, optional Whether to run in verbose mode for debugging or detailed output. **USER : dict, optional Additional user-defined variables to pass into the script. Returns: -------- A `pipescript` object that combines the script objects generated from the selected dscript subobjects. """ # Start with an empty pipescript # combined_pipescript = None # # Iterate over the provided keys to extract corresponding subobjects # for key in keys: # # Extract the dscript subobject for the given key # sub_dscript = self(key) # # Convert the dscript subobject to a script object, passing USER, printflag, and verbose # script_obj = sub_dscript.script(printflag=printflag, verbose=verbose, **USER) # # Combine script objects into a pipescript object # if combined_pipescript is None: # combined_pipescript = pipescript(script_obj) # Initialize pipescript # else: # combined_pipescript = combined_pipescript | script_obj # Use pipe operator # if combined_pipescript is None: # ValueError('The conversion to pipescript from {type{self}} falled') # return combined_pipescript printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity # Loop over all keys in TEMPLATE and combine them combined_pipescript = None for key in self.keys(): # Create a new dscript object with only the current key in TEMPLATE focused_dscript = dscript(name=f"{self.name}:{key}") focused_dscript.TEMPLATE[key] = self.TEMPLATE[key] focused_dscript.TEMPLATE[key].definitions = scriptdata(**self.TEMPLATE[key].definitions) focused_dscript.DEFINITIONS = scriptdata(**self.DEFINITIONS) focused_dscript.SECTIONS = self.SECTIONS[:] focused_dscript.section = self.section focused_dscript.position = self.position focused_dscript.role = self.role focused_dscript.description = self.description focused_dscript.userid = self.userid focused_dscript.version = self.version focused_dscript.verbose = verbose focused_dscript.printflag = printflag # Convert the focused dscript object to a script object script_obj = focused_dscript.script(printflag=printflag, verbose=verbose, **USER) # Combine the script objects into a pipescript object using the pipe operator if combined_pipescript is None: combined_pipescript = pipescript(script_obj) # Initialize pipescript else: combined_pipescript = combined_pipescript | pipescript(script_obj) # Use pipe operator if combined_pipescript is None: ValueError('The conversion to pipescript from {type{self}} falled') return combined_pipescript def reorder(self, order)-
Reorder the TEMPLATE lines according to a list of indices.
Expand source code
def reorder(self, order): """Reorder the TEMPLATE lines according to a list of indices.""" # Get the original items as a list of (key, value) pairs original_items = list(self.TEMPLATE.items()) # Create a new dictionary with reordered scripts, preserving original keys new_scripts = {original_items[i][0]: original_items[i][1] for i in order} # Create a new dscript object with reordered scripts reordered_script = dscript() reordered_script.TEMPLATE = new_scripts return reordered_script def save(self, filename=None, foldername=None, overwrite=False, generatoronly=False, onlyusedvariables=True)-
Save the current script instance to a text file.
Parameters
filename:str, optional- The name of the file to save the script to. If not provided,
self.nameis used. The extension ".txt" is automatically appended if not included. foldername:str, optional- The directory where the file will be saved. If not provided, it defaults to the system's temporary directory. If the filename does not include a full path, this folder will be used.
overwrite:bool, default=True- Whether to overwrite the file if it already exists. If set to False, an exception is raised if the file exists.
generatoronly:bool, default=False- If True, the method returns the generated content string without saving to a file.
onlyusedvariables:bool, default=True- If True, local definitions are only saved if they are used within the template content. If False, all local definitions are saved, regardless of whether they are referenced in the template.
Raises
FileExistsError- If the file already exists and
overwriteis set to False.
Notes
- The script is saved in a plain text format, and each section (global parameters, definitions, template, and attributes) is written in a structured format with appropriate comments.
- If
self.nameis used as the filename, it must be a valid string that can serve as a file name. -
The file structure follows the format: # DSCRIPT SAVE FILE # generated on YYYY-MM-DD on user@hostname
GLOBAL PARAMETERS
{ … }
DEFINITIONS (number of definitions=…)
key=value
TEMPLATES (number of items=…)
key: template_content
ATTRIBUTES (number of items with explicit attributes=…)
key:{attr1=value1, attr2=value2, …}
Expand source code
def save(self, filename=None, foldername=None, overwrite=False, generatoronly=False, onlyusedvariables=True): """ Save the current script instance to a text file. Parameters ---------- filename : str, optional The name of the file to save the script to. If not provided, `self.name` is used. The extension ".txt" is automatically appended if not included. foldername : str, optional The directory where the file will be saved. If not provided, it defaults to the system's temporary directory. If the filename does not include a full path, this folder will be used. overwrite : bool, default=True Whether to overwrite the file if it already exists. If set to False, an exception is raised if the file exists. generatoronly : bool, default=False If True, the method returns the generated content string without saving to a file. onlyusedvariables : bool, default=True If True, local definitions are only saved if they are used within the template content. If False, all local definitions are saved, regardless of whether they are referenced in the template. Raises ------ FileExistsError If the file already exists and `overwrite` is set to False. Notes ----- - The script is saved in a plain text format, and each section (global parameters, definitions, template, and attributes) is written in a structured format with appropriate comments. - If `self.name` is used as the filename, it must be a valid string that can serve as a file name. - The file structure follows the format: # DSCRIPT SAVE FILE # generated on YYYY-MM-DD on user@hostname # GLOBAL PARAMETERS { ... } # DEFINITIONS (number of definitions=...) key=value # TEMPLATES (number of items=...) key: template_content # ATTRIBUTES (number of items with explicit attributes=...) key:{attr1=value1, attr2=value2, ...} """ # At the beginning of the save method start_time = time.time() # Start the timer if not generatoronly: # Use self.name if filename is not provided if filename is None: filename = span(self.name, sep="\n") # Ensure the filename ends with '.txt' if not filename.endswith('.txt'): filename += '.txt' # Construct the full path if foldername in [None, ""]: # Handle cases where foldername is None or an empty string filepath = os.path.abspath(filename) else: filepath = os.path.join(foldername, filename) # Check if the file already exists, and raise an exception if it does and overwrite is False if os.path.exists(filepath) and not overwrite: raise FileExistsError(f"The file '{filepath}' already exists.") # Header with current date, username, and host header = "# DSCRIPT SAVE FILE\n" header += "\n"*2 if generatoronly: header += dscript.header(verbose=True,filepath='dynamic code generation (no file)', name = self.name, version=self.version, license=self.license, email=self.email) else: header += dscript.header(verbose=True,filepath=filepath, name = self.name, version=self.version, license=self.license, email=self.email) header += "\n"*2 # Global parameters in strict Python syntax global_params = "# GLOBAL PARAMETERS (8 parameters)\n" global_params += "{\n" global_params += f" SECTIONS = {self.SECTIONS},\n" global_params += f" section = {self.section},\n" global_params += f" position = {self.position},\n" global_params += f" role = {self.role!r},\n" global_params += f" description = {self.description!r},\n" global_params += f" userid = {self.userid!r},\n" global_params += f" version = {self.version},\n" global_params += f" verbose = {self.verbose}\n" global_params += "}\n" # Initialize definitions with self.DEFINITIONS allvars = self.DEFINITIONS # Temporary dictionary to track global variable information global_var_info = {} # Loop over each template item to detect and record variable usage and overrides for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()): # Detect variables used in this template used_variables = script_template.detect_variables() # Loop over each template item to detect and record variable usage and overrides for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()): # Detect variables used in this template used_variables = script_template.detect_variables() # Check each variable used in this template for var in used_variables: # Get global and local values for the variable global_value = getattr(allvars, var, None) local_value = getattr(script_template.definitions, var, None) is_global = var in allvars # Check if the variable originates in global space is_default = is_global and ( global_value is None or global_value == "" or global_value == f"${{{var}}}" ) # If the variable is not yet tracked, initialize its info if var not in global_var_info: global_var_info[var] = { "value": global_value, # Initial value from allvars if exists "updatedvalue": global_value,# Initial value from allvars if exists "is_default": is_default, # Check if it’s set to a default value "first_def": None, # First definition (to be updated later) "first_use": template_index, # First time the variable is used "first_val": global_value, "override_index": template_index if local_value is not None else None, # Set override if defined locally "is_global": is_global # Track if the variable originates as global } else: # Update `override_index` if the variable is defined locally and its value changes if local_value is not None: # Check if the local value differs from the tracked value in global_var_info current_value = global_var_info[var]["value"] if current_value != local_value: global_var_info[var]["override_index"] = template_index global_var_info[var]["updatedvalue"] = local_value # Update the tracked value # Second loop: Update `first_def` for all variables for template_index, (key, script_template) in enumerate(self.TEMPLATE.items()): local_definitions = script_template.definitions.keys() for var in local_definitions: if var in global_var_info and global_var_info[var]["first_def"] is None: global_var_info[var]["first_def"] = template_index global_var_info[var]["first_val"] = getattr(script_template.definitions, var) # Filter global definitions based on usage, overrides, and first_def filtered_globals = { var: info for var, info in global_var_info.items() if (info["is_global"] or info["is_default"]) and (info["override_index"] is None) } # Generate the definitions output based on filtered globals definitions = f"\n# GLOBAL DEFINITIONS (number of definitions={len(filtered_globals)})\n" for var, info in filtered_globals.items(): if info["is_default"] and (info["first_def"]>info["first_use"] if info["first_def"] else True): definitions += f"{var} = ${{{var}}} # value assumed to be defined outside this DSCRIPT file\n" else: value = info["first_val"] #info["value"] if value in ["", None]: definitions += f'{var} = ""\n' elif isinstance(value, str): safe_value = value.replace('\\', '\\\\').replace('\n', '\\n') definitions += f"{var} = {safe_value}\n" else: definitions += f"{var} = {value}\n" # Template (number of lines/items) printsinglecontent = False template = f"\n# TEMPLATES (number of items={len(self.TEMPLATE)})\n" for key, script_template in self.TEMPLATE.items(): # Get local template definitions and detected variables template_vars = script_template.definitions used_variables = script_template.detect_variables() islocal = False # Temporary dictionary to accumulate variables to add to allvars valid_local_vars = lambdaScriptdata() # Write template-specific definitions only if they meet the updated conditions for var in template_vars.keys(): # Conditions for adding a variable to the local template and to `allvars` if (var in used_variables or not onlyusedvariables) and ( script_template.is_variable_set_value_only(var) and (var not in allvars or getattr(template_vars, var) != getattr(allvars, var)) ): # Start local definitions section if this is the first local variable for the template if not islocal: template += f"\n# LOCAL DEFINITIONS for key '{key}'\n" islocal = True # Retrieve and process the variable value value = getattr(template_vars, var) if value in ["", None]: template += f'{var} = ""\n' # Set empty or None values as "" elif isinstance(value, str): safe_value = value.replace('\\', '\\\\').replace('\n', '\\n') template += f"{var} = {safe_value}\n" else: template += f"{var} = {value}\n" # Add the variable to valid_local_vars for selective update of allvars valid_local_vars.setattr(var, value) # Update allvars only with filtered, valid local variables allvars += valid_local_vars # Write the template content if isinstance(script_template.content, list): if len(script_template.content) == 1: # Single-line template saved as a single line content_str = script_template.content[0].strip() template += "" if printsinglecontent else "\n" template += f"{key}: {content_str}\n" printsinglecontent = True else: content_str = '\n '.join(script_template.content) template += f"\n{key}: [\n {content_str}\n ]\n" printsinglecontent = False else: template += "" if printsinglecontent else "\n" template += f"{key}: {script_template.content}\n" printsinglecontent = True # Attributes (number of lines/items with explicit attributes) attributes = f"# ATTRIBUTES (number of items with explicit attributes={len(self.TEMPLATE)})\n" for key, script_template in self.TEMPLATE.items(): attr_str = ", ".join(f"{attr_name}={repr(attr_value)}" for attr_name, attr_value in script_template.attributes.items()) attributes += f"{key}:{{{attr_str}}}\n" # Combine all sections into one content content = header + "\n" + global_params + "\n" + definitions + "\n" + template + "\n" + attributes + "\n" # Append footer information to the content non_empty_lines = sum(1 for line in content.splitlines() if line.strip()) # Count non-empty lines execution_time = time.time() - start_time # Calculate the execution time in seconds # Prepare the footer content footer_lines = [ ["Non-empty lines", str(non_empty_lines)], ["Execution time (seconds)", f"{execution_time:.4f}"], ] # Format footer into tabular style footer_content = [ f"{row[0]:<25} {row[1]:<15}" for row in footer_lines ] # Use frame_header to format footer footer = frame_header( lines=["DSCRIPT SAVE FILE generator"] + footer_content, style=1 ) # Append footer to the content content += f"\n{footer}" if generatoronly: return content else: # Write the content to the file with open(filepath, 'w') as f: f.write(content) print(f"\nScript saved to {filepath}") return filepath def script(self, printflag=None, verbose=None, verbosity=None, **USER)-
returns the corresponding script
Expand source code
def script(self,printflag=None, verbose=None, verbosity=None, **USER): """ returns the corresponding script """ printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity return lamdaScript(self,persistentfile=True, persistentfolder=None, printflag=printflag, verbose=verbose, **USER) def set_all_variables(self)-
Ensures that all variables in the templates are added to the global definitions with default values if they are not already defined.
Expand source code
def set_all_variables(self): """ Ensures that all variables in the templates are added to the global definitions with default values if they are not already defined. """ for key, script_template in self.TEMPLATE.items(): # Check and update the global definitions with template-specific variables for var in script_template.detect_variables(): if var not in self.DEFINITIONS: # Add undefined variables with their default value self.DEFINITIONS.setattr(var, f"${{{var}}}") # Set default as ${varname} def values(self)-
Return the ScriptTemplate objects in TEMPLATE.
Expand source code
def values(self): """Return the ScriptTemplate objects in TEMPLATE.""" return self.TEMPLATE.values()
class lambdaScriptdata (sortdefinitions=False, **kwargs)-
Class to manage lambda script parameters.
This class holds definitions and variables used within the script templates. These parameters are typically set up as global variables that can be accessed by script sections for evaluation and substitution.
Example Usage:
definitions = lambdaScriptdata(var1=10, var2="value")
Attributes:
_type : str The type of the data ("LSD" by default). _fulltype : str Full type description of the lambda script data. _ftype : str Short description of the type (parameter definition).
Methods:
This class inherits methods from the
paramautoclass, which allows automatic handling of parameters and script data.Constructor for lambdaScriptdata. It forces the parent's _returnerror parameter to False.
Parameters:
_protection : bool, optional Whether to enable protection on the parameters (default: False). _evaluation : bool, optional Whether evaluation is enabled for the parameters (default: True). sortdefinitions : bool, optional Whether to sort definitions upon initialization (default: False). **kwargs : dict Additional keyword arguments for the parent class.
Expand source code
class lambdaScriptdata(paramauto): """ Class to manage lambda script parameters. This class holds definitions and variables used within the script templates. These parameters are typically set up as global variables that can be accessed by script sections for evaluation and substitution. Example Usage: -------------- definitions = lambdaScriptdata(var1=10, var2="value") Attributes: ----------- _type : str The type of the data ("LSD" by default). _fulltype : str Full type description of the lambda script data. _ftype : str Short description of the type (parameter definition). Methods: -------- This class inherits methods from the `paramauto` class, which allows automatic handling of parameters and script data. """ _type = "LSD" _fulltype = "Lambda Script Parameters" _ftype = "parameter definition" def __init__(self, _protection=False, _evaluation=True, sortdefinitions=False, **kwargs): """ Constructor for lambdaScriptdata. It forces the parent's _returnerror parameter to False. Parameters: ----------- _protection : bool, optional Whether to enable protection on the parameters (default: False). _evaluation : bool, optional Whether evaluation is enabled for the parameters (default: True). sortdefinitions : bool, optional Whether to sort definitions upon initialization (default: False). **kwargs : dict Additional keyword arguments for the parent class. """ # Call the parent class constructor super().__init__(_protection=_protection, _evaluation=_evaluation, sortdefinitions=sortdefinitions, **kwargs) # Override the _returnerror attribute at the instance level self._returnerror = FalseAncestors
- pizza.private.mstruct.paramauto
- pizza.private.mstruct.param
- pizza.private.mstruct.struct
class lamdaScript (dscriptobj, persistentfile=True, persistentfolder=None, printflag=False, verbose=True, softrun=True, **userdefinitions)-
lamdaScript
The
lamdaScriptclass is a specialized subclass ofscriptthat acts as a wrapper for generating script objects fromdscriptinstances. It facilitates the creation of scripts with persistent storage options and user-defined configurations.Attributes
name:str- The name of the script.
SECTIONS:list- Inherited list of script sections from the
scriptclass. position:int- The position index of the script section.
role:str- The role of the script section, derived from its position.
description:str- A brief description of the script.
userid:str- The user ID associated with the script.
version:float- The version of the script.
verbose:bool- Flag to enable verbose output.
DEFINITIONS:scriptdata- Definitions of variables used in the script.
USER:lambdaScriptdata- User-defined variables specific to
lamdaScript. TEMPLATE:dict- A dictionary of script templates.
Methods
do() Generates the complete LAMMPS script by processing all script sections.
Special Methods
contains(key) Allows checking if a specific section exists using the
inkeyword. str() Returns the string representation of the script.Usage Example
from dscript import lamdaScript, dscript # Create an existing dscript instance existing_dscript = dscript(name="ExistingScript") existing_dscript.role = "Custom Role" # Create a lamdaScript instance based on the existing dscript ls = lamdaScript(existing_dscript) print(ls.role) # Outputs: "Custom Role"Initialize a new
lambdaScriptinstance.This constructor creates a
lambdaScriptobject based on an existingdscriptobj, providing options for persistent storage, verbose output, and user-defined configurations. AlambdaScriptrepresents an anonymous or temporary script that can either preserve the original script structure or partially evaluate variable definitions based on thesoftrunflag.Parameters
dscriptobj:dscript- An existing
dscriptobject to base the new instance on. persistentfile:bool, optional- If
True, the script will be saved to a persistent file. Defaults toTrue. persistentfolder:strorNone, optional- The folder where the persistent file will be saved. If
None, a temporary location is used. Defaults toNone. printflag:bool, optional- If
True, enables printing of the script details during execution. Defaults toFalse. verbose:bool, optional- If
True, provides detailed output during script initialization and execution. Defaults toTrue. softrun:bool, optional- Determines whether a pre-execution run is carried out to partially evaluate and substitute variables.
- If
True(default), the variable definitions and original script content are preserved without full evaluation, meaning no substitution is carried out on thedscript's templates or definitions. - IfFalse, performs an initial evaluation phase that substitutes available variables and captures the local definitions before creating thelambdaScriptobject. **userdefinitions- Additional user-defined variables and configurations to be included in the
lambdaScript.
Raises
TypeError- If
dscriptobjis not an instance of thedscriptclass.
Example
existing_dscript = dscript(name="ExistingScript") ls = lambdaScript(existing_dscript, var3="3", softrun=False)Expand source code
class lamdaScript(script): """ lamdaScript =========== The `lamdaScript` class is a specialized subclass of `script` that acts as a wrapper for generating script objects from `dscript` instances. It facilitates the creation of scripts with persistent storage options and user-defined configurations. Attributes ---------- name : str The name of the script. SECTIONS : list Inherited list of script sections from the `script` class. position : int The position index of the script section. role : str The role of the script section, derived from its position. description : str A brief description of the script. userid : str The user ID associated with the script. version : float The version of the script. verbose : bool Flag to enable verbose output. DEFINITIONS : scriptdata Definitions of variables used in the script. USER : lambdaScriptdata User-defined variables specific to `lamdaScript`. TEMPLATE : dict A dictionary of script templates. Methods ------- do() Generates the complete LAMMPS script by processing all script sections. Special Methods ---------------- __contains__(key) Allows checking if a specific section exists using the `in` keyword. __str__() Returns the string representation of the script. Usage Example ------------- ```python from dscript import lamdaScript, dscript # Create an existing dscript instance existing_dscript = dscript(name="ExistingScript") existing_dscript.role = "Custom Role" # Create a lamdaScript instance based on the existing dscript ls = lamdaScript(existing_dscript) print(ls.role) # Outputs: "Custom Role" ``` """ name = "" def __init__(self, dscriptobj, persistentfile=True, persistentfolder=None, printflag = False, verbose = True, softrun = True, **userdefinitions): """ Initialize a new `lambdaScript` instance. This constructor creates a `lambdaScript` object based on an existing `dscriptobj`, providing options for persistent storage, verbose output, and user-defined configurations. A `lambdaScript` represents an anonymous or temporary script that can either preserve the original script structure or partially evaluate variable definitions based on the `softrun` flag. Parameters ---------- dscriptobj : dscript An existing `dscript` object to base the new instance on. persistentfile : bool, optional If `True`, the script will be saved to a persistent file. Defaults to `True`. persistentfolder : str or None, optional The folder where the persistent file will be saved. If `None`, a temporary location is used. Defaults to `None`. printflag : bool, optional If `True`, enables printing of the script details during execution. Defaults to `False`. verbose : bool, optional If `True`, provides detailed output during script initialization and execution. Defaults to `True`. softrun : bool, optional Determines whether a pre-execution run is carried out to partially evaluate and substitute variables. - If `True` (default), the variable definitions and original script content are preserved without full evaluation, meaning no substitution is carried out on the `dscript`'s templates or definitions. - If `False`, performs an initial evaluation phase that substitutes available variables and captures the local definitions before creating the `lambdaScript` object. **userdefinitions Additional user-defined variables and configurations to be included in the `lambdaScript`. Raises ------ TypeError If `dscriptobj` is not an instance of the `dscript` class. Example ------- ```python existing_dscript = dscript(name="ExistingScript") ls = lambdaScript(existing_dscript, var3="3", softrun=False) ``` """ if not isinstance(dscriptobj, dscript): raise TypeError(f"The 'dscriptobj' object must be of class dscript not {type(dscriptobj).__name__}.") verbose = dscriptobj.verbose if verbose is None else dscriptobj.verbose super().__init__(persistentfile=persistentfile, persistentfolder=persistentfolder, printflag=printflag, verbose=verbose, **userdefinitions) self.name = dscriptobj.name self.SECTIONS = dscriptobj.SECTIONS self.section = dscriptobj.section self.position = dscriptobj.position self._role = dscriptobj.role # Initialize an internal storage for the role self.description = dscriptobj.description self.userid = dscriptobj.userid self.version= dscriptobj.version self.verbose = verbose self.printflag = printflag self.DEFINITIONS = dscriptobj.DEFINITIONS if softrun: self.TEMPLATE,localdefinitions = dscriptobj.do(softrun=softrun,return_definitions=True) self.USER = localdefinitions + lambdaScriptdata(**self.USER) else: self.TEMPLATE = dscriptobj.do(softrun=softrun) self.USER = lambdaScriptdata(**self.USER) @property def role(self): """Override the role property to include a setter.""" # If _role is set, return it; otherwise, use the inherited logic if self._role is not None: return self._role elif self.section in range(len(self.SECTIONS)): return self.SECTIONS[self.section] else: return "" @role.setter def role(self, value): """Allow setting the role.""" self._role = valueAncestors
- pizza.script.script
Class variables
var name
Instance variables
var role-
Override the role property to include a setter.
Expand source code
@property def role(self): """Override the role property to include a setter.""" # If _role is set, return it; otherwise, use the inherited logic if self._role is not None: return self._role elif self.section in range(len(self.SECTIONS)): return self.SECTIONS[self.section] else: return ""
class paramauto (sortdefinitions=False, **kwargs)-
Class:
paramautoA subclass of
paramwith enhanced handling for automatic sorting and evaluation of definitions. Theparamautoclass ensures that all fields are sorted to resolve dependencies, allowing seamless stacking of partially defined objects.
Features
- Inherits all functionalities of
param. - Automatically sorts definitions for dependency resolution.
- Simplifies handling of partial definitions in dynamic structures.
- Supports safe concatenation of definitions.
Examples
Automatic Dependency Sorting
Definitions are automatically sorted to resolve dependencies:
p = paramauto(a=1, b="${a}+1", c="${a}+${b}") p.disp() # Output: # -------- # a: 1 # b: ${a} + 1 (= 2) # c: ${a} + ${b} (= 3) # --------Handling Missing Definitions
Unresolved dependencies raise warnings but do not block execution:
p = paramauto(a=1, b="${a}+1", c="${a}+${d}") p.disp() # Output: # -------- # a: 1 # b: ${a} + 1 (= 2) # c: ${a} + ${d} (= < undef definition "${d}" >) # --------
Concatenation and Inheritance
Concatenating
paramautoobjects resolves definitions:p1 = paramauto(a=1, b="${a}+2") p2 = paramauto(c="${b}*3") p3 = p1 + p2 p3.disp() # Output: # -------- # a: 1 # b: ${a} + 2 (= 3) # c: ${b} * 3 (= 9) # --------
Utility Methods
Method Description sortdefinitions()Automatically sorts fields to resolve dependencies. eval()Evaluate all fields, resolving dependencies. disp()Display all fields with their resolved values.
Overloaded Operators
Supported Operators
+: Concatenates twoparamautoobjects, resolving dependencies.+=: Updates the current object with another, resolving dependencies.len(): Number of fields.in: Check for field existence.
Advanced Usage
Partial Definitions
The
paramautoclass simplifies handling of partially defined fields:p = paramauto(a="${d}", b="${a}+1") p.disp() # Warning: Unable to resolve dependencies. # -------- # a: ${d} (= < undef definition "${d}" >) # b: ${a} + 1 (= < undef definition "${d}" >) # -------- p.d = 10 p.disp() # Dependencies are resolved: # -------- # d: 10 # a: ${d} (= 10) # b: ${a} + 1 (= 11) # --------
Notes
- The
paramautoclass is computationally more intensive thanparamdue to automatic sorting. - It is ideal for managing dynamic systems with complex interdependencies.
Examples
p = paramauto() p.b = "${aa}" p.disp() yields WARNING: unable to interpret 1/1 expressions in "definitions" -----------:---------------------------------------- b: ${aa} = < undef definition "${aa}" > -----------:---------------------------------------- p.aa = 2 p.disp() yields -----------:---------------------------------------- aa: 2 b: ${aa} = 2 -----------:---------------------------------------- q = paramauto(c="${aa}+${b}")+p q.disp() yields -----------:---------------------------------------- aa: 2 b: ${aa} = 2 c: ${aa}+${b} = 4 -----------:---------------------------------------- q.aa = 30 q.disp() yields -----------:---------------------------------------- aa: 30 b: ${aa} = 30 c: ${aa}+${b} = 60 -----------:---------------------------------------- q.aa = "${d}" q.disp() yields multiple errors (recursion) WARNING: unable to interpret 3/3 expressions in "definitions" -----------:---------------------------------------- aa: ${d} = < undef definition "${d}" > b: ${aa} = Eval Error < invalid [...] (<string>, line 1) > c: ${aa}+${b} = Eval Error < invalid [...] (<string>, line 1) > -----------:---------------------------------------- q.d = 100 q.disp() yields -----------:---------------------------------------- d: 100 aa: ${d} = 100 b: ${aa} = 100 c: ${aa}+${b} = 200 -----------:---------------------------------------- Example: p = paramauto(b="${a}+1",c="${a}+${d}",a=1) p.disp() generates: WARNING: unable to interpret 1/3 expressions in "definitions" -----------:---------------------------------------- a: 1 b: ${a}+1 = 2 c: ${a}+${d} = < undef definition "${d}" > -----------:---------------------------------------- setting p.d p.d = 2 p.disp() produces -----------:---------------------------------------- a: 1 d: 2 b: ${a}+1 = 2 c: ${a}+${d} = 3 -----------:----------------------------------------constructor
Expand source code
class paramauto(param): """ Class: `paramauto` ================== A subclass of `param` with enhanced handling for automatic sorting and evaluation of definitions. The `paramauto` class ensures that all fields are sorted to resolve dependencies, allowing seamless stacking of partially defined objects. --- ### Features - Inherits all functionalities of `param`. - Automatically sorts definitions for dependency resolution. - Simplifies handling of partial definitions in dynamic structures. - Supports safe concatenation of definitions. --- ### Examples #### Automatic Dependency Sorting Definitions are automatically sorted to resolve dependencies: ```python p = paramauto(a=1, b="${a}+1", c="${a}+${b}") p.disp() # Output: # -------- # a: 1 # b: ${a} + 1 (= 2) # c: ${a} + ${b} (= 3) # -------- ``` #### Handling Missing Definitions Unresolved dependencies raise warnings but do not block execution: ```python p = paramauto(a=1, b="${a}+1", c="${a}+${d}") p.disp() # Output: # -------- # a: 1 # b: ${a} + 1 (= 2) # c: ${a} + ${d} (= < undef definition "${d}" >) # -------- ``` --- ### Concatenation and Inheritance Concatenating `paramauto` objects resolves definitions: ```python p1 = paramauto(a=1, b="${a}+2") p2 = paramauto(c="${b}*3") p3 = p1 + p2 p3.disp() # Output: # -------- # a: 1 # b: ${a} + 2 (= 3) # c: ${b} * 3 (= 9) # -------- ``` --- ### Utility Methods | Method | Description | |-----------------------|--------------------------------------------------------| | `sortdefinitions()` | Automatically sorts fields to resolve dependencies. | | `eval()` | Evaluate all fields, resolving dependencies. | | `disp()` | Display all fields with their resolved values. | --- ### Overloaded Operators #### Supported Operators - `+`: Concatenates two `paramauto` objects, resolving dependencies. - `+=`: Updates the current object with another, resolving dependencies. - `len()`: Number of fields. - `in`: Check for field existence. --- ### Advanced Usage #### Partial Definitions The `paramauto` class simplifies handling of partially defined fields: ```python p = paramauto(a="${d}", b="${a}+1") p.disp() # Warning: Unable to resolve dependencies. # -------- # a: ${d} (= < undef definition "${d}" >) # b: ${a} + 1 (= < undef definition "${d}" >) # -------- p.d = 10 p.disp() # Dependencies are resolved: # -------- # d: 10 # a: ${d} (= 10) # b: ${a} + 1 (= 11) # -------- ``` --- ### Notes - The `paramauto` class is computationally more intensive than `param` due to automatic sorting. - It is ideal for managing dynamic systems with complex interdependencies. ### Examples p = paramauto() p.b = "${aa}" p.disp() yields WARNING: unable to interpret 1/1 expressions in "definitions" -----------:---------------------------------------- b: ${aa} = < undef definition "${aa}" > -----------:---------------------------------------- p.aa = 2 p.disp() yields -----------:---------------------------------------- aa: 2 b: ${aa} = 2 -----------:---------------------------------------- q = paramauto(c="${aa}+${b}")+p q.disp() yields -----------:---------------------------------------- aa: 2 b: ${aa} = 2 c: ${aa}+${b} = 4 -----------:---------------------------------------- q.aa = 30 q.disp() yields -----------:---------------------------------------- aa: 30 b: ${aa} = 30 c: ${aa}+${b} = 60 -----------:---------------------------------------- q.aa = "${d}" q.disp() yields multiple errors (recursion) WARNING: unable to interpret 3/3 expressions in "definitions" -----------:---------------------------------------- aa: ${d} = < undef definition "${d}" > b: ${aa} = Eval Error < invalid [...] (<string>, line 1) > c: ${aa}+${b} = Eval Error < invalid [...] (<string>, line 1) > -----------:---------------------------------------- q.d = 100 q.disp() yields -----------:---------------------------------------- d: 100 aa: ${d} = 100 b: ${aa} = 100 c: ${aa}+${b} = 200 -----------:---------------------------------------- Example: p = paramauto(b="${a}+1",c="${a}+${d}",a=1) p.disp() generates: WARNING: unable to interpret 1/3 expressions in "definitions" -----------:---------------------------------------- a: 1 b: ${a}+1 = 2 c: ${a}+${d} = < undef definition "${d}" > -----------:---------------------------------------- setting p.d p.d = 2 p.disp() produces -----------:---------------------------------------- a: 1 d: 2 b: ${a}+1 = 2 c: ${a}+${d} = 3 -----------:---------------------------------------- """ def __add__(self,p): return super(param,self).__add__(p,sortdefinitions=True,raiseerror=False) def __iadd__(self,p): return super(param,self).__iadd__(p,sortdefinitions=True,raiseerror=False) def __repr__(self): self.sortdefinitions(raiseerror=False) #super(param,self).__repr__() super().__repr__() return str(self)Ancestors
- pizza.private.mstruct.param
- pizza.private.mstruct.struct
Subclasses
- lambdaScriptdata
- pizza.dscript.lambdaScriptdata
- pizza.forcefield.parameterforcefield
- pizza.region.regiondata
- Inherits all functionalities of
class pipescript (s=None, name=None, printflag=False, verbose=True, verbosity=None)-
pipescript: A Class for Managing Script Pipelines
The
pipescriptclass stores scripts in a pipeline where multiple scripts, script objects, or script object groups can be combined and executed sequentially. Scripts in the pipeline are executed using the pipe (|) operator, allowing for dynamic control over execution order, script concatenation, and variable management.Key Features:
- Pipeline Construction: Create pipelines of scripts, combining multiple
script objects,
script,scriptobject, orscriptobjectgroupinstances. The pipe operator (|) is overloaded to concatenate scripts. - Sequential Execution: Execute all scripts in the pipeline in the order they were added, with support for reordering, selective execution, and clearing of individual steps.
- User and Definition Spaces: Manage local and global user-defined variables
(
USERspace) and static definitions for each script in the pipeline. Global definitions apply to all scripts in the pipeline, while local variables apply to specific steps. - Flexible Script Handling: Indexing, slicing, reordering, and renaming scripts in the pipeline are supported. Scripts can be accessed, replaced, and modified like array elements.
Practical Use Cases:
- LAMMPS Script Automation: Automate the generation of multi-step simulation scripts for LAMMPS, combining different simulation setups into a single pipeline.
- Script Management: Combine and manage multiple scripts, tracking user variables and ensuring that execution order can be adjusted easily.
- Advanced Script Execution: Perform partial pipeline execution, reorder steps, or clear completed steps while maintaining the original pipeline structure.
Methods:
init(self, s=None): Initializes a new
pipescriptobject, optionally starting with a script or script-like object (script,scriptobject,scriptobjectgroup).setUSER(self, idx, key, value): Set a user-defined variable (
USER) for the script at the specified index.getUSER(self, idx, key): Get the value of a user-defined variable (
USER) for the script at the specified index.clear(self, idx=None): Clear the execution status of scripts in the pipeline, allowing them to be executed again.
do(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): Execute the pipeline or a subset of the pipeline, generating a combined LAMMPS-compatible script.
script(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): Generate the final LAMMPS script from the pipeline or a subset of the pipeline.
rename(self, name="", idx=None): Rename the scripts in the pipeline, assigning new names to specific indices or all scripts.
write(self, file, printflag=True, verbosity=2, verbose=None): Write the generated script to a file.
dscript(self, verbose=None, **USER) Convert the current pipescript into a dscript object
Static Methods:
join(liste): Combine a list of
scriptandpipescriptobjects into a single pipeline.Additional Features:
- Indexing and Slicing: Use array-like indexing (
p[0],p[1:3]) to access and manipulate scripts in the pipeline. - Deep Copy Support: The pipeline supports deep copying, preserving the entire pipeline structure and its scripts.
- Verbose and Print Options: Control verbosity and printing behavior for generated scripts, allowing for detailed output or minimal script generation.
Original Content:
The
pipescriptclass supports a variety of pipeline operations, including: - Sequential execution withcmd = p.do(). - Reordering pipelines withp[[2, 0, 1]]. - Deleting steps withp[[0, 1]] = []. - Accessing local and global user space variables viap.USER[idx].varandp.scripts[idx].USER.var. - Managing static definitions for each script in the pipeline. - Example usage:p = pipescript() p | i p = G | c | g | d | b | i | t | d | s | r p.rename(["G", "c", "g", "d", "b", "i", "t", "d", "s", "r"]) cmd = p.do([0, 1, 4, 7]) sp = p.script([0, 1, 4, 7])- Scripts in the pipeline are executed sequentially, and definitions propagate from left to right. TheUSERspace andDEFINITIONSare managed separately for each script in the pipeline.Overview
Pipescript class stores scripts in pipelines By assuming: s0, s1, s2... scripts, scriptobject or scriptobjectgroup p = s0 | s1 | s2 generates a pipe script Example of pipeline: ------------:---------------------------------------- [-] 00: G with (0>>0>>19) DEFINITIONS [-] 01: c with (0>>0>>10) DEFINITIONS [-] 02: g with (0>>0>>26) DEFINITIONS [-] 03: d with (0>>0>>19) DEFINITIONS [-] 04: b with (0>>0>>28) DEFINITIONS [-] 05: i with (0>>0>>49) DEFINITIONS [-] 06: t with (0>>0>>2) DEFINITIONS [-] 07: d with (0>>0>>19) DEFINITIONS [-] 08: s with (0>>0>>1) DEFINITIONS [-] 09: r with (0>>0>>20) DEFINITIONS ------------:---------------------------------------- Out[35]: pipescript containing 11 scripts with 8 executed[*] note: XX>>YY>>ZZ represents the number of stored variables and the direction of propagation (inheritance from left) XX: number of definitions in the pipeline USER space YY: number of definitions in the script instance (frozen in the pipeline) ZZ: number of definitions in the script (frozen space) pipelines are executed sequentially (i.e. parameters can be multivalued) cmd = p.do() fullscript = p.script() pipelines are indexed cmd = p[[0,2]].do() cmd = p[0:2].do() cmd = p.do([0,2]) pipelines can be reordered q = p[[2,0,1]] steps can be deleted p[[0,1]] = [] clear all executions with p.clear() p.clear(idx=1,2) local USER space can be accessed via (affects only the considered step) p.USER[0].a = 1 p.USER[0].b = [1 2] p.USER[0].c = "$ hello world" global USER space can accessed via (affects all steps onward) p.scripts[0].USER.a = 10 p.scripts[0].USER.b = [10 20] p.scripts[0].USER.c = "$ bye bye" static definitions p.scripts[0].DEFINITIONS steps can be renamed with the method rename() syntaxes are à la Matlab: p = pipescript() p | i p = collection | G p[0] q = p | p q[0] = [] p[0:1] = q[0:1] p = G | c | g | d | b | i | t | d | s | r p.rename(["G","c","g","d","b","i","t","d","s","r"]) cmd = p.do([0,1,4,7]) sp = p.script([0,1,4,7]) r = collection | p join joins a list (static method) p = pipescript.join([p1,p2,s3,s4]) Pending: mechanism to store LAMMPS results (dump3) in the pipelineconstructor
Expand source code
class pipescript: """ pipescript: A Class for Managing Script Pipelines The `pipescript` class stores scripts in a pipeline where multiple scripts, script objects, or script object groups can be combined and executed sequentially. Scripts in the pipeline are executed using the pipe (`|`) operator, allowing for dynamic control over execution order, script concatenation, and variable management. Key Features: ------------- - **Pipeline Construction**: Create pipelines of scripts, combining multiple script objects, `script`, `scriptobject`, or `scriptobjectgroup` instances. The pipe operator (`|`) is overloaded to concatenate scripts. - **Sequential Execution**: Execute all scripts in the pipeline in the order they were added, with support for reordering, selective execution, and clearing of individual steps. - **User and Definition Spaces**: Manage local and global user-defined variables (`USER` space) and static definitions for each script in the pipeline. Global definitions apply to all scripts in the pipeline, while local variables apply to specific steps. - **Flexible Script Handling**: Indexing, slicing, reordering, and renaming scripts in the pipeline are supported. Scripts can be accessed, replaced, and modified like array elements. Practical Use Cases: -------------------- - **LAMMPS Script Automation**: Automate the generation of multi-step simulation scripts for LAMMPS, combining different simulation setups into a single pipeline. - **Script Management**: Combine and manage multiple scripts, tracking user variables and ensuring that execution order can be adjusted easily. - **Advanced Script Execution**: Perform partial pipeline execution, reorder steps, or clear completed steps while maintaining the original pipeline structure. Methods: -------- __init__(self, s=None): Initializes a new `pipescript` object, optionally starting with a script or script-like object (`script`, `scriptobject`, `scriptobjectgroup`). setUSER(self, idx, key, value): Set a user-defined variable (`USER`) for the script at the specified index. getUSER(self, idx, key): Get the value of a user-defined variable (`USER`) for the script at the specified index. clear(self, idx=None): Clear the execution status of scripts in the pipeline, allowing them to be executed again. do(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): Execute the pipeline or a subset of the pipeline, generating a combined LAMMPS-compatible script. script(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): Generate the final LAMMPS script from the pipeline or a subset of the pipeline. rename(self, name="", idx=None): Rename the scripts in the pipeline, assigning new names to specific indices or all scripts. write(self, file, printflag=True, verbosity=2, verbose=None): Write the generated script to a file. dscript(self, verbose=None, **USER) Convert the current pipescript into a dscript object Static Methods: --------------- join(liste): Combine a list of `script` and `pipescript` objects into a single pipeline. Additional Features: -------------------- - **Indexing and Slicing**: Use array-like indexing (`p[0]`, `p[1:3]`) to access and manipulate scripts in the pipeline. - **Deep Copy Support**: The pipeline supports deep copying, preserving the entire pipeline structure and its scripts. - **Verbose and Print Options**: Control verbosity and printing behavior for generated scripts, allowing for detailed output or minimal script generation. Original Content: ----------------- The `pipescript` class supports a variety of pipeline operations, including: - Sequential execution with `cmd = p.do()`. - Reordering pipelines with `p[[2, 0, 1]]`. - Deleting steps with `p[[0, 1]] = []`. - Accessing local and global user space variables via `p.USER[idx].var` and `p.scripts[idx].USER.var`. - Managing static definitions for each script in the pipeline. - Example usage: ``` p = pipescript() p | i p = G | c | g | d | b | i | t | d | s | r p.rename(["G", "c", "g", "d", "b", "i", "t", "d", "s", "r"]) cmd = p.do([0, 1, 4, 7]) sp = p.script([0, 1, 4, 7]) ``` - Scripts in the pipeline are executed sequentially, and definitions propagate from left to right. The `USER` space and `DEFINITIONS` are managed separately for each script in the pipeline. OVERVIEW ----------------- Pipescript class stores scripts in pipelines By assuming: s0, s1, s2... scripts, scriptobject or scriptobjectgroup p = s0 | s1 | s2 generates a pipe script Example of pipeline: ------------:---------------------------------------- [-] 00: G with (0>>0>>19) DEFINITIONS [-] 01: c with (0>>0>>10) DEFINITIONS [-] 02: g with (0>>0>>26) DEFINITIONS [-] 03: d with (0>>0>>19) DEFINITIONS [-] 04: b with (0>>0>>28) DEFINITIONS [-] 05: i with (0>>0>>49) DEFINITIONS [-] 06: t with (0>>0>>2) DEFINITIONS [-] 07: d with (0>>0>>19) DEFINITIONS [-] 08: s with (0>>0>>1) DEFINITIONS [-] 09: r with (0>>0>>20) DEFINITIONS ------------:---------------------------------------- Out[35]: pipescript containing 11 scripts with 8 executed[*] note: XX>>YY>>ZZ represents the number of stored variables and the direction of propagation (inheritance from left) XX: number of definitions in the pipeline USER space YY: number of definitions in the script instance (frozen in the pipeline) ZZ: number of definitions in the script (frozen space) pipelines are executed sequentially (i.e. parameters can be multivalued) cmd = p.do() fullscript = p.script() pipelines are indexed cmd = p[[0,2]].do() cmd = p[0:2].do() cmd = p.do([0,2]) pipelines can be reordered q = p[[2,0,1]] steps can be deleted p[[0,1]] = [] clear all executions with p.clear() p.clear(idx=1,2) local USER space can be accessed via (affects only the considered step) p.USER[0].a = 1 p.USER[0].b = [1 2] p.USER[0].c = "$ hello world" global USER space can accessed via (affects all steps onward) p.scripts[0].USER.a = 10 p.scripts[0].USER.b = [10 20] p.scripts[0].USER.c = "$ bye bye" static definitions p.scripts[0].DEFINITIONS steps can be renamed with the method rename() syntaxes are à la Matlab: p = pipescript() p | i p = collection | G p[0] q = p | p q[0] = [] p[0:1] = q[0:1] p = G | c | g | d | b | i | t | d | s | r p.rename(["G","c","g","d","b","i","t","d","s","r"]) cmd = p.do([0,1,4,7]) sp = p.script([0,1,4,7]) r = collection | p join joins a list (static method) p = pipescript.join([p1,p2,s3,s4]) Pending: mechanism to store LAMMPS results (dump3) in the pipeline """ def __init__(self,s=None, name=None, printflag=False, verbose=True, verbosity = None): """ constructor """ self.globalscript = None self.listscript = [] self.listUSER = [] self.printflag = printflag self.verbose = verbose if verbosity is None else verbosity>0 self.verbosity = 0 if not verbose else verbosity self.cmd = "" if isinstance(s,script): self.listscript = [duplicate(s)] self.listUSER = [scriptdata()] elif isinstance(s,scriptobject): self.listscript = [scriptobjectgroup(s).script] self.listUSER = [scriptdata()] elif isinstance(s,scriptobjectgroup): self.listscript = [s.script] self.listUSER = [scriptdata()] else: ValueError("the argument should be a scriptobject or scriptobjectgroup") if s != None: self.name = [str(s)] self.executed = [False] else: self.name = [] self.executed = [] def setUSER(self,idx,key,value): """ setUSER sets USER variables setUSER(idx,varname,varvalue) """ if isinstance(idx,int) and (idx>=0) and (idx<self.n): self.listUSER[idx].setattr(key,value) else: raise IndexError(f"the index in the pipe should be comprised between 0 and {len(self)-1}") def getUSER(self,idx,key): """ getUSER get USER variable getUSER(idx,varname) """ if isinstance(idx,int) and (idx>=0) and (idx<self.n): self.listUSER[idx].getattr(key) else: raise IndexError(f"the index in the pipe should be comprised between 0 and {len(self)-1}") @property def USER(self): """ p.USER[idx].var returns the value of the USER variable var p.USER[idx].var = val assigns the value val to the USER variable var """ return self.listUSER # override listuser @property def scripts(self): """ p.scripts[idx].USER.var returns the value of the USER variable var p.scripts[idx].USER.var = val assigns the value val to the USER variable var """ return self.listscript # override listuser def __add__(self,s): """ overload + as pipe with copy """ if isinstance(s,pipescript): dup = deepduplicate(self) return dup | s # + or | are synonyms else: raise TypeError("The operand should be a pipescript") def __iadd__(self,s): """ overload += as pipe without copy """ if isinstance(s,pipescript): return self | s # + or | are synonyms else: raise TypeError("The operand should be a pipescript") def __mul__(self,ntimes): """ overload * as multiple pipes with copy """ if isinstance(self,pipescript): res = deepduplicate(self) if ntimes>1: for n in range(1,ntimes): res += self return res else: raise TypeError("The operand should be a pipescript") def __or__(self, s): """ Overload | pipe operator in pipescript """ leftarg = deepduplicate(self) # Make a deep copy of the current object # Local import only when dscript type needs to be checked from pizza.dscript import dscript from pizza.group import group, groupcollection from pizza.region import region # Convert rightarg to pipescript if needed if isinstance(s, dscript): rightarg = s.pipescript(printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) # Convert the dscript object to a pipescript native = False elif isinstance(s,script): rightarg = pipescript(s,printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) # Convert the script-like object into a pipescript native = False elif isinstance(s,(scriptobject,scriptobjectgroup)): rightarg = pipescript(s,printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) # Convert the script-like object into a pipescript native = False elif isinstance(s, group): stmp = s.script(printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) rightarg = pipescript(stmp,printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) # Convert the script-like object into a pipescript native = False elif isinstance(s, groupcollection): stmp = s.script(printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) rightarg = pipescript(stmp,printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) # Convert the script-like object into a pipescript native = False elif isinstance(s, region): rightarg = s.pipescript(printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) # Convert the script-like object into a pipescript native = False elif isinstance(s,pipescript): rightarg = s native = True else: raise TypeError(f"The operand should be a pipescript, dscript, script, scriptobject, scriptobjectgroup, group or groupcollection not {type(s)}") # Native piping if native: leftarg.listscript = leftarg.listscript + rightarg.listscript leftarg.listUSER = leftarg.listUSER + rightarg.listUSER leftarg.name = leftarg.name + rightarg.name for i in range(len(rightarg)): rightarg.executed[i] = False leftarg.executed = leftarg.executed + rightarg.executed return leftarg # Piping for non-native objects (dscript or script-like objects) else: # Loop through all items in rightarg and concatenate them for i in range(rightarg.n): leftarg.listscript.append(rightarg.listscript[i]) leftarg.listUSER.append(rightarg.listUSER[i]) leftarg.name.append(rightarg.name[i]) leftarg.executed.append(False) return leftarg def __str__(self): """ string representation """ return f"pipescript containing {self.n} scripts with {self.nrun} executed[*]" def __repr__(self): """ display method """ line = " "+"-"*12+":"+"-"*40 if self.verbose: print("","Pipeline with %d scripts and" % self.n, "D(STATIC:GLOBAL:LOCAL) DEFINITIONS",line,sep="\n") else: print(line) for i in range(len(self)): if self.executed[i]: state = "*" else: state = "-" print("%10s" % ("[%s] %02d:" % (state,i)), self.name[i],"with D(%2d:%2d:%2d)" % ( len(self.listscript[i].DEFINITIONS), len(self.listscript[i].USER), len(self.listUSER[i]) ) ) if self.verbose: print(line,"::: notes :::","p[i], p[i:j], p[[i,j]] copy pipeline segments", "LOCAL: p.USER[i],p.USER[i].variable modify the user space of only p[i]", "GLOBAL: p.scripts[i].USER.var to modify the user space from p[i] and onwards", "STATIC: p.scripts[i].DEFINITIONS", 'p.rename(idx=range(2),name=["A","B"]), p.clear(idx=[0,3,4])', "p.script(), p.script(idx=range(5)), p[0:5].script()","",sep="\n") else: print(line) return str(self) def __len__(self): """ len() method """ return len(self.listscript) @property def n(self): """ number of scripts """ return len(self) @property def nrun(self): """ number of scripts executed continuously from origin """ n, nmax = 0, len(self) while n<nmax and self.executed[n]: n+=1 return n def __getitem__(self,idx): """ return the ith or slice element(s) of the pipe """ dup = deepduplicate(self) if isinstance(idx,slice): dup.listscript = dup.listscript[idx] dup.listUSER = dup.listUSER[idx] dup.name = dup.name[idx] dup.executed = dup.executed[idx] elif isinstance(idx,int): if idx<len(self): dup.listscript = dup.listscript[idx:idx+1] dup.listUSER = dup.listUSER[idx:idx+1] dup.name = dup.name[idx:idx+1] dup.executed = dup.executed[idx:idx+1] else: raise IndexError(f"the index in the pipe should be comprised between 0 and {len(self)-1}") elif isinstance(idx,list): dup.listscript = picker(dup.listscript,idx) dup.listUSER = picker(dup.listUSER,idx) dup.name = picker(dup.name,idx) dup.executed = picker(dup.executed,idx) else: raise IndexError("the index needs to be a slice or an integer") return dup def __setitem__(self,idx,s): """ modify the ith element of the pipe p[4] = [] removes the 4th element p[4:7] = [] removes the elements from position 4 to 6 p[2:4] = p[0:2] copy the elements 0 and 1 in positions 2 and 3 p[[3,4]]=p[0] """ if isinstance(s,(script,scriptobject,scriptobjectgroup)): dup = pipescript(s) elif isinstance(s,pipescript): dup = s elif s==[]: dup = [] else: raise ValueError("the value must be a pipescript, script, scriptobject, scriptobjectgroup") if len(s)<1: # remove (delete) if isinstance(idx,slice) or idx<len(self): del self.listscript[idx] del self.listUSER[idx] del self.name[idx] del self.executed[idx] else: raise IndexError("the index must be a slice or an integer") elif len(s)==1: # scalar if isinstance(idx,int): if idx<len(self): self.listscript[idx] = dup.listscript[0] self.listUSER[idx] = dup.listUSER[0] self.name[idx] = dup.name[0] self.executed[idx] = False elif idx==len(self): self.listscript.append(dup.listscript[0]) self.listUSER.append(dup.listUSER[0]) self.name.append(dup.name[0]) self.executed.append(False) else: raise IndexError(f"the index must be ranged between 0 and {self.n}") elif isinstance(idx,list): for i in range(len(idx)): self.__setitem__(idx[i], s) # call as a scalar elif isinstance(idx,slice): for i in range(*idx.indices(len(self)+1)): self.__setitem__(i, s) else: raise IndexError("unrocognized index value, the index should be an integer or a slice") else: # many values if isinstance(idx,list): # list call à la Matlab if len(idx)==len(s): for i in range(len(s)): self.__setitem__(idx[i], s[i]) # call as a scalar else: raise IndexError(f"the number of indices {len(list)} does not match the number of values {len(s)}") elif isinstance(idx,slice): ilist = list(range(*idx.indices(len(self)+len(s)))) self.__setitem__(ilist, s) # call as a list else: raise IndexError("unrocognized index value, the index should be an integer or a slice") def rename(self,name="",idx=None): """ rename scripts in the pipe p.rename(idx=[0,2,3],name=["A","B","C"]) """ if isinstance(name,list): if len(name)==len(self) and idx==None: self.name = name elif len(name) == len(idx): for i in range(len(idx)): self.rename(name[i],idx[i]) else: IndexError(f"the number of indices {len(idx)} does not match the number of names {len(name)}") elif idx !=None and idx<len(self) and name!="": self.name[idx] = name else: raise ValueError("provide a non empty name and valid index") def clear(self,idx=None): if len(self)>0: if idx==None: for i in range(len(self)): self.clear(i) else: if isinstance(idx,(range,list)): for i in idx: self.clear(idx=i) elif isinstance(idx,int) and idx<len(self): self.executed[idx] = False else: raise IndexError(f"the index should be ranged between 0 and {self.n-1}") if not self.executed[0]: self.globalscript = None self.cmd = "" def do(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): """ Execute the pipeline or a part of the pipeline and generate the LAMMPS script. Parameters: idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. printflag (bool, optional): Whether to print the script for each step. Default is True. verbosity (int, optional): Level of verbosity for the output. verbose (bool, optional): Override for verbosity. If False, sets verbosity to 0. forced (bool, optional): If True, forces the pipeline to regenerate all scripts. Returns: str: Combined LAMMPS script for the specified pipeline steps. Execute the pipeline or a part of the pipeline and generate the LAMMPS script. This method processes the pipeline of script objects, executing each step to generate a combined LAMMPS-compatible script. The execution can be done for the entire pipeline or for a specified range of indices. The generated script can include comments and metadata based on the verbosity level. Method Workflow: - The method first checks if there are any script objects in the pipeline. If the pipeline is empty, it returns a message indicating that there is nothing to execute. - It determines the start and stop indices for the range of steps to execute. If idx is not provided, it defaults to executing all steps from the last executed position. - If a specific index or list of indices is provided, it executes only those steps. - The pipeline steps are executed in order, combining the scripts using the >> operator for sequential execution. - The generated script includes comments indicating the current run step and pipeline range, based on the specified verbosity level. - The final combined script is returned as a string. Example Usage: -------------- >>> p = pipescript() >>> # Execute the entire pipeline >>> full_script = p.do() >>> # Execute steps 0 and 2 only >>> partial_script = p.do([0, 2]) >>> # Execute step 1 with minimal verbosity >>> minimal_script = p.do(idx=1, verbosity=0) Notes: - The method uses modular arithmetic to handle index wrapping, allowing for cyclic execution of pipeline steps. - If the pipeline is empty, the method returns the string "# empty pipe - nothing to do". - The globalscript is initialized or updated with each step's script, and the USER definitions are accumulated across the steps. - The command string self.cmd is updated with the generated script for each step in the specified range. Raises: - None: The method does not raise exceptions directly, but an empty pipeline will result in the return of "# empty pipe - nothing to do". """ verbosity = 0 if verbose is False else verbosity if len(self) == 0: return "# empty pipe - nothing to do" # Check if not all steps are executed or if there are gaps not_all_executed = not all(self.executed[:self.nrun]) # Check up to the last executed step # Determine pipeline range total_steps = len(self) if self.globalscript is None or forced or not_all_executed: start = 0 self.cmd = "" else: start = self.nrun self.cmd = self.cmd.rstrip("\n") + "\n\n" if idx is None: idx = range(start, total_steps) if isinstance(idx, int): idx = [idx] if isinstance(idx, range): idx = list(idx) idx = [i % total_steps for i in idx] start, stop = min(idx), max(idx) # Prevent re-executing already completed steps if not forced: idx = [step for step in idx if not self.executed[step]] # Execute pipeline steps for step in idx: step_wrapped = step % total_steps # Combine scripts if step_wrapped == 0: self.globalscript = self.listscript[step_wrapped] else: self.globalscript = self.globalscript >> self.listscript[step_wrapped] # Step label step_name = f"<{self.name[step]}>" step_label = f"# [{step+1} of {total_steps} from {start}:{stop}] {step_name}" # Get script content for the step step_output = self.globalscript.do(printflag=printflag, verbose=verbosity > 1) # Add comments and content if step_output.strip(): self.cmd += f"{step_label}\n{step_output.strip()}\n\n" elif verbosity > 0: self.cmd += f"{step_label} :: no content\n\n" # Update USER definitions self.globalscript.USER += self.listUSER[step] self.executed[step] = True # Clean up and finalize script self.cmd = self.cmd.replace("\\n", "\n").strip() # Remove literal \\n and extra spaces self.cmd += "\n" # Ensure trailing newline return remove_comments(self.cmd) if verbosity == 0 else self.cmd def do_legacy(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): """ Execute the pipeline or a part of the pipeline and generate the LAMMPS script. This method processes the pipeline of script objects, executing each step to generate a combined LAMMPS-compatible script. The execution can be done for the entire pipeline or for a specified range of indices. The generated script can include comments and metadata based on the verbosity level. Parameters: - idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. If None, all steps from the current position to the end are executed. A list of indices can be provided to execute specific steps, or a single integer can be passed to execute a specific step. Default is None. - printflag (bool, optional): If True, the generated script for each step is printed to the console. Default is True. - verbosity (int, optional): Controls the level of detail in the generated script. - 0: Minimal output, no comments. - 1: Basic comments for run steps. - 2: Detailed comments with additional information. Default is 2. - forced (bool, optional): If True, all scripts are regenerated Returns: - str: The combined LAMMPS script generated from the specified steps of the pipeline. Method Workflow: - The method first checks if there are any script objects in the pipeline. If the pipeline is empty, it returns a message indicating that there is nothing to execute. - It determines the start and stop indices for the range of steps to execute. If idx is not provided, it defaults to executing all steps from the last executed position. - If a specific index or list of indices is provided, it executes only those steps. - The pipeline steps are executed in order, combining the scripts using the >> operator for sequential execution. - The generated script includes comments indicating the current run step and pipeline range, based on the specified verbosity level. - The final combined script is returned as a string. Example Usage: -------------- >>> p = pipescript() >>> # Execute the entire pipeline >>> full_script = p.do() >>> # Execute steps 0 and 2 only >>> partial_script = p.do([0, 2]) >>> # Execute step 1 with minimal verbosity >>> minimal_script = p.do(idx=1, verbosity=0) Notes: - The method uses modular arithmetic to handle index wrapping, allowing for cyclic execution of pipeline steps. - If the pipeline is empty, the method returns the string "# empty pipe - nothing to do". - The globalscript is initialized or updated with each step's script, and the USER definitions are accumulated across the steps. - The command string self.cmd is updated with the generated script for each step in the specified range. Raises: - None: The method does not raise exceptions directly, but an empty pipeline will result in the return of "# empty pipe - nothing to do". """ verbosity = 0 if verbose is False else verbosity if len(self)>0: # ranges ntot = len(self) stop = ntot-1 if (self.globalscript == None) or (self.globalscript == []) or not self.executed[0] or forced: start = 0 self.cmd = "" else: start = self.nrun if start>stop: return self.cmd if idx is None: idx = range(start,stop+1) if isinstance(idx,range): idx = list(idx) if isinstance(idx,int): idx = [idx] start,stop = min(idx),max(idx) # do for i in idx: j = i % ntot if j==0: self.globalscript = self.listscript[j] else: self.globalscript = self.globalscript >> self.listscript[j] name = " "+self.name[i]+" " if verbosity>0: self.cmd += "\n\n#\t --- run step [%d/%d] --- [%s] %20s\n" % \ (j,ntot-1,name.center(50,"="),"pipeline [%d]-->[%d]" %(start,stop)) else: self.cmd +="\n" self.globalscript.USER = self.globalscript.USER + self.listUSER[j] self.cmd += self.globalscript.do(printflag=printflag,verbose=verbosity>1) self.executed[i] = True self.cmd = self.cmd.replace("\\n", "\n") # remove literal \\n if any (dscript.save add \\n) return remove_comments(self.cmd) if verbosity==0 else self.cmd else: return "# empty pipe - nothing to do" def script(self,idx=None, printflag=True, verbosity=2, verbose=None, forced=False, style=4): """ script the pipeline or parts of the pipeline s = p.script() s = p.script([0,2]) Parameters: - idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. If None, all steps from the current position to the end are executed. A list of indices can be provided to execute specific steps, or a single integer can be passed to execute a specific step. Default is None. - printflag (bool, optional): If True, the generated script for each step is printed to the console. Default is True. - verbosity (int, optional): Controls the level of detail in the generated script. - 0: Minimal output, no comments. - 1: Basic comments for run steps. - 2: Detailed comments with additional information. Default is 2. - forced (bool, optional): If True, all scripts are regenerated - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with `+`, `-`, and `|` 2. Double-line frame with `╔`, `═`, and `║` 3. Rounded corners with `.`, `'`, `-`, and `|` 4. Thick outer frame with `#`, `=`, and `#` 5. Box drawing characters with `┌`, `─`, and `│` 6. Minimalist dotted frame with `.`, `:`, and `.` Default is `4` (thick outer frame). """ printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity=0 if verbose is False else verbosity s = script(printflag=printflag, verbose=verbosity>0) s.name = "pipescript" s.description = "pipeline with %d scripts" % len(self) if len(self)>1: s.userid = self.name[0]+"->"+self.name[-1] elif len(self)==1: s.userid = self.name[0] else: s.userid = "empty pipeline" s.TEMPLATE = self.header(verbosity=verbosity, style=style) + "\n" +\ self.do(idx, printflag=printflag, verbosity=verbosity, verbose=verbose, forced=forced) s.DEFINITIONS = duplicate(self.globalscript.DEFINITIONS) s.USER = duplicate(self.globalscript.USER) return s @staticmethod def join(liste): """ join a combination scripts and pipescripts within a pipescript p = pipescript.join([s1,s2,p3,p4,p5...]) """ if not isinstance(liste,list): raise ValueError("the argument should be a list") ok = True for i in range(len(liste)): ok = ok and isinstance(liste[i],(script,pipescript)) if not ok: raise ValueError(f"the entry [{i}] should be a script or pipescript") if len(liste)<1: return liste out = liste[0] for i in range(1,len(liste)): out = out | liste[i] return out # Note that it was not the original intent to copy pipescripts def __copy__(self): """ copy method """ cls = self.__class__ copie = cls.__new__(cls) copie.__dict__.update(self.__dict__) return copie def __deepcopy__(self, memo): """ deep copy method """ cls = self.__class__ copie = cls.__new__(cls) memo[id(self)] = copie for k, v in self.__dict__.items(): setattr(copie, k, deepduplicate(v, memo)) return copie # write file def write(self, file, printflag=False, verbosity=2, verbose=None, overwrite=False): """ Write the combined script to a file. Parameters: file (str): The file path where the script will be saved. printflag (bool): Flag to enable/disable printing of details. verbosity (int): Level of verbosity for the script generation. verbose (bool or None): If True, enables verbose mode; if None, defaults to the instance's verbosity. overwrite (bool): Whether to overwrite the file if it already exists. Default is False. Returns: str: The full absolute path of the file written. Raises: FileExistsError: If the file already exists and overwrite is False. Notes: - This method combines the individual scripts within the `pipescript` object and saves the resulting script to the specified file. - If `overwrite` is False and the file exists, an error is raised. - If `verbose` is True and the file is overwritten, a warning is displayed. """ # Generate the combined script myscript = self.script(printflag=printflag, verbosity=verbosity, verbose=verbose, forced=True) # Call the script's write method with the overwrite parameter return myscript.write(file, printflag=printflag, verbose=verbose, overwrite=overwrite) def dscript(self, name=None, printflag=None, verbose=None, verbosity=None, **USER): """ Convert the current pipescript object to a dscript object. This method merges the STATIC, GLOBAL, and LOCAL variable spaces from each step in the pipescript into a single dynamic script per step in the dscript. Each step in the pipescript is transformed into a dynamic script in the dscript, where variable spaces are combined using the following order: 1. STATIC: Definitions specific to each script in the pipescript. 2. GLOBAL: User variables shared across steps from a specific point onwards. 3. LOCAL: User variables for each individual step. Parameters: ----------- verbose : bool, optional Controls verbosity of the dynamic scripts in the resulting dscript object. If None, the verbosity setting of the pipescript will be used. **USER : scriptobjectdata(), optional Additional user-defined variables that can override existing static variables in the dscript object or be added to it. Returns: -------- outd : dscript A dscript object that contains all steps of the pipescript as dynamic scripts. Each step from the pipescript is added as a dynamic script with the same content and combined variable spaces. """ # Local imports from pizza.dscript import dscript, ScriptTemplate, lambdaScriptdata # verbosity printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity # Adjust name if name is None: if isinstance(self.name, str): name = self.name elif isinstance(self.name, list): name = ( self.name[0] if len(self.name) == 1 else self.name[0] + "..." + self.name[-1] ) # Create the dscript container with the pipescript name as the userid outd = dscript(userid=name, verbose=self.verbose, **USER) # Initialize static merged definitions staticmerged_definitions = lambdaScriptdata() # Track used variables per step step_used_variables = [] # Loop over each step in the pipescript for i, script in enumerate(self.listscript): # Merge STATIC, GLOBAL, and LOCAL variables for the current step static_vars = self.listUSER[i] # script.DEFINITIONS global_vars = script.DEFINITIONS # self.scripts[i].USER local_vars = script.USER # self.USER[i] refreshed_globalvars = static_vars + global_vars # Detect variables used in the current template used_variables = set(script.detect_variables()) step_used_variables.append(used_variables) # Track used variables for this step # Copy all current variables to local_static_updates and remove matching variables from staticmerged_definitions local_static_updates = lambdaScriptdata(**local_vars) for var, value in refreshed_globalvars.items(): if var in staticmerged_definitions: if (getattr(staticmerged_definitions, var) != value) and (var not in local_vars): setattr(local_static_updates, var, value) else: setattr(staticmerged_definitions, var, value) # Create the dynamic script for this step using the method in dscript key_name = i # Use the index 'i' as the key in TEMPLATE content = script.TEMPLATE # Use the helper method in dscript to add this dynamic script outd.add_dynamic_script( key=key_name, content=content, definitions = lambdaScriptdata(**local_static_updates), verbose=self.verbose if verbose is None else verbose, userid=self.name[i] ) # Set eval=True only if variables are detected in the template if outd.TEMPLATE[key_name].detect_variables(): outd.TEMPLATE[key_name].eval = True # Compute the union of all used variables across all steps global_used_variables = set().union(*step_used_variables) # Filter staticmerged_definitions to keep only variables that are used filtered_definitions = { var: value for var, value in staticmerged_definitions.items() if var in global_used_variables } # Assign the filtered definitions along with USER variables to outd.DEFINITIONS outd.DEFINITIONS = lambdaScriptdata(**filtered_definitions) return outd def header(self, verbose=True,verbosity=None, style=4): """ Generate a formatted header for the pipescript file. Parameters: verbosity (bool, optional): If specified, overrides the instance's `verbose` setting. Defaults to the instance's `verbose`. style (int from 1 to 6, optional): ASCII style to frame the header (default=4) Returns: str: A formatted string representing the pipescript object. Returns an empty string if verbosity is False. The header includes: - Total number of scripts in the pipeline. - The verbosity setting. - The range of scripts from the first to the last script. - All enclosed within an ASCII frame that adjusts to the content. """ verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity if not verbosity: return "" # Prepare the header content lines = [ f"PIPESCRIPT with {self.n} scripts | Verbosity: {verbosity}", "", f"From: <{str(self.scripts[0])}> To: <{str(self.scripts[-1])}>", ] # Use the shared method to format the header return frame_header(lines,style=style)Static methods
def join(liste)-
join a combination scripts and pipescripts within a pipescript p = pipescript.join([s1,s2,p3,p4,p5…])
Expand source code
@staticmethod def join(liste): """ join a combination scripts and pipescripts within a pipescript p = pipescript.join([s1,s2,p3,p4,p5...]) """ if not isinstance(liste,list): raise ValueError("the argument should be a list") ok = True for i in range(len(liste)): ok = ok and isinstance(liste[i],(script,pipescript)) if not ok: raise ValueError(f"the entry [{i}] should be a script or pipescript") if len(liste)<1: return liste out = liste[0] for i in range(1,len(liste)): out = out | liste[i] return out
Instance variables
var USER-
p.USER[idx].var returns the value of the USER variable var p.USER[idx].var = val assigns the value val to the USER variable var
Expand source code
@property def USER(self): """ p.USER[idx].var returns the value of the USER variable var p.USER[idx].var = val assigns the value val to the USER variable var """ return self.listUSER # override listuser var n-
number of scripts
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@property def n(self): """ number of scripts """ return len(self) var nrun-
number of scripts executed continuously from origin
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@property def nrun(self): """ number of scripts executed continuously from origin """ n, nmax = 0, len(self) while n<nmax and self.executed[n]: n+=1 return n var scripts-
p.scripts[idx].USER.var returns the value of the USER variable var p.scripts[idx].USER.var = val assigns the value val to the USER variable var
Expand source code
@property def scripts(self): """ p.scripts[idx].USER.var returns the value of the USER variable var p.scripts[idx].USER.var = val assigns the value val to the USER variable var """ return self.listscript # override listuser
Methods
def clear(self, idx=None)-
Expand source code
def clear(self,idx=None): if len(self)>0: if idx==None: for i in range(len(self)): self.clear(i) else: if isinstance(idx,(range,list)): for i in idx: self.clear(idx=i) elif isinstance(idx,int) and idx<len(self): self.executed[idx] = False else: raise IndexError(f"the index should be ranged between 0 and {self.n-1}") if not self.executed[0]: self.globalscript = None self.cmd = "" def do(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False)-
Execute the pipeline or a part of the pipeline and generate the LAMMPS script.
Parameters
idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. printflag (bool, optional): Whether to print the script for each step. Default is True. verbosity (int, optional): Level of verbosity for the output. verbose (bool, optional): Override for verbosity. If False, sets verbosity to 0. forced (bool, optional): If True, forces the pipeline to regenerate all scripts.
Returns
str- Combined LAMMPS script for the specified pipeline steps.
Execute the pipeline or a part of the pipeline and generate the LAMMPS script.
This method processes the pipeline of script objects, executing each step to generate a combined LAMMPS-compatible script. The execution can be done for the entire pipeline or for a specified range of indices. The generated script can include comments and metadata based on the verbosity level. Method Workflow: - The method first checks if there are any script objects in the pipeline. If the pipeline is empty, it returns a message indicating that there is nothing to execute. - It determines the start and stop indices for the range of steps to execute. If idx is not provided, it defaults to executing all steps from the last executed position. - If a specific index or list of indices is provided, it executes only those steps. - The pipeline steps are executed in order, combining the scripts using the >> operator for sequential execution. - The generated script includes comments indicating the current run step and pipeline range, based on the specified verbosity level. - The final combined script is returned as a string.
Example Usage:
>>> p = pipescript() >>> # Execute the entire pipeline >>> full_script = p.do() >>> # Execute steps 0 and 2 only >>> partial_script = p.do([0, 2]) >>> # Execute step 1 with minimal verbosity >>> minimal_script = p.do(idx=1, verbosity=0) Notes: - The method uses modular arithmetic to handle index wrapping, allowing for cyclic execution of pipeline steps. - If the pipeline is empty, the method returns the string "# empty pipe - nothing to do". - The globalscript is initialized or updated with each step's script, and the USER definitions are accumulated across the steps. - The command string self.cmd is updated with the generated script for each step in the specified range. Raises: - None: The method does not raise exceptions directly, but an empty pipeline will result in the return of "# empty pipe - nothing to do".Expand source code
def do(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): """ Execute the pipeline or a part of the pipeline and generate the LAMMPS script. Parameters: idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. printflag (bool, optional): Whether to print the script for each step. Default is True. verbosity (int, optional): Level of verbosity for the output. verbose (bool, optional): Override for verbosity. If False, sets verbosity to 0. forced (bool, optional): If True, forces the pipeline to regenerate all scripts. Returns: str: Combined LAMMPS script for the specified pipeline steps. Execute the pipeline or a part of the pipeline and generate the LAMMPS script. This method processes the pipeline of script objects, executing each step to generate a combined LAMMPS-compatible script. The execution can be done for the entire pipeline or for a specified range of indices. The generated script can include comments and metadata based on the verbosity level. Method Workflow: - The method first checks if there are any script objects in the pipeline. If the pipeline is empty, it returns a message indicating that there is nothing to execute. - It determines the start and stop indices for the range of steps to execute. If idx is not provided, it defaults to executing all steps from the last executed position. - If a specific index or list of indices is provided, it executes only those steps. - The pipeline steps are executed in order, combining the scripts using the >> operator for sequential execution. - The generated script includes comments indicating the current run step and pipeline range, based on the specified verbosity level. - The final combined script is returned as a string. Example Usage: -------------- >>> p = pipescript() >>> # Execute the entire pipeline >>> full_script = p.do() >>> # Execute steps 0 and 2 only >>> partial_script = p.do([0, 2]) >>> # Execute step 1 with minimal verbosity >>> minimal_script = p.do(idx=1, verbosity=0) Notes: - The method uses modular arithmetic to handle index wrapping, allowing for cyclic execution of pipeline steps. - If the pipeline is empty, the method returns the string "# empty pipe - nothing to do". - The globalscript is initialized or updated with each step's script, and the USER definitions are accumulated across the steps. - The command string self.cmd is updated with the generated script for each step in the specified range. Raises: - None: The method does not raise exceptions directly, but an empty pipeline will result in the return of "# empty pipe - nothing to do". """ verbosity = 0 if verbose is False else verbosity if len(self) == 0: return "# empty pipe - nothing to do" # Check if not all steps are executed or if there are gaps not_all_executed = not all(self.executed[:self.nrun]) # Check up to the last executed step # Determine pipeline range total_steps = len(self) if self.globalscript is None or forced or not_all_executed: start = 0 self.cmd = "" else: start = self.nrun self.cmd = self.cmd.rstrip("\n") + "\n\n" if idx is None: idx = range(start, total_steps) if isinstance(idx, int): idx = [idx] if isinstance(idx, range): idx = list(idx) idx = [i % total_steps for i in idx] start, stop = min(idx), max(idx) # Prevent re-executing already completed steps if not forced: idx = [step for step in idx if not self.executed[step]] # Execute pipeline steps for step in idx: step_wrapped = step % total_steps # Combine scripts if step_wrapped == 0: self.globalscript = self.listscript[step_wrapped] else: self.globalscript = self.globalscript >> self.listscript[step_wrapped] # Step label step_name = f"<{self.name[step]}>" step_label = f"# [{step+1} of {total_steps} from {start}:{stop}] {step_name}" # Get script content for the step step_output = self.globalscript.do(printflag=printflag, verbose=verbosity > 1) # Add comments and content if step_output.strip(): self.cmd += f"{step_label}\n{step_output.strip()}\n\n" elif verbosity > 0: self.cmd += f"{step_label} :: no content\n\n" # Update USER definitions self.globalscript.USER += self.listUSER[step] self.executed[step] = True # Clean up and finalize script self.cmd = self.cmd.replace("\\n", "\n").strip() # Remove literal \\n and extra spaces self.cmd += "\n" # Ensure trailing newline return remove_comments(self.cmd) if verbosity == 0 else self.cmd def do_legacy(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False)-
Execute the pipeline or a part of the pipeline and generate the LAMMPS script.
This method processes the pipeline of script objects, executing each step to generate a combined LAMMPS-compatible script. The execution can be done for the entire pipeline or for a specified range of indices. The generated script can include comments and metadata based on the verbosity level.
Parameters: - idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. If None, all steps from the current position to the end are executed. A list of indices can be provided to execute specific steps, or a single integer can be passed to execute a specific step. Default is None. - printflag (bool, optional): If True, the generated script for each step is printed to the console. Default is True. - verbosity (int, optional): Controls the level of detail in the generated script. - 0: Minimal output, no comments. - 1: Basic comments for run steps. - 2: Detailed comments with additional information. Default is 2. - forced (bool, optional): If True, all scripts are regenerated
Returns: - str: The combined LAMMPS script generated from the specified steps of the pipeline.
Method Workflow: - The method first checks if there are any script objects in the pipeline. If the pipeline is empty, it returns a message indicating that there is nothing to execute. - It determines the start and stop indices for the range of steps to execute. If idx is not provided, it defaults to executing all steps from the last executed position. - If a specific index or list of indices is provided, it executes only those steps. - The pipeline steps are executed in order, combining the scripts using the
operator for sequential execution. - The generated script includes comments indicating the current run step and pipeline range, based on the specified verbosity level. - The final combined script is returned as a string.
Example Usage:
>>> p = pipescript() >>> # Execute the entire pipeline >>> full_script = p.do() >>> # Execute steps 0 and 2 only >>> partial_script = p.do([0, 2]) >>> # Execute step 1 with minimal verbosity >>> minimal_script = p.do(idx=1, verbosity=0)Notes: - The method uses modular arithmetic to handle index wrapping, allowing for cyclic execution of pipeline steps. - If the pipeline is empty, the method returns the string "# empty pipe - nothing to do". - The globalscript is initialized or updated with each step's script, and the USER definitions are accumulated across the steps. - The command string self.cmd is updated with the generated script for each step in the specified range.
Raises: - None: The method does not raise exceptions directly, but an empty pipeline will result in the return of "# empty pipe - nothing to do".
Expand source code
def do_legacy(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): """ Execute the pipeline or a part of the pipeline and generate the LAMMPS script. This method processes the pipeline of script objects, executing each step to generate a combined LAMMPS-compatible script. The execution can be done for the entire pipeline or for a specified range of indices. The generated script can include comments and metadata based on the verbosity level. Parameters: - idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. If None, all steps from the current position to the end are executed. A list of indices can be provided to execute specific steps, or a single integer can be passed to execute a specific step. Default is None. - printflag (bool, optional): If True, the generated script for each step is printed to the console. Default is True. - verbosity (int, optional): Controls the level of detail in the generated script. - 0: Minimal output, no comments. - 1: Basic comments for run steps. - 2: Detailed comments with additional information. Default is 2. - forced (bool, optional): If True, all scripts are regenerated Returns: - str: The combined LAMMPS script generated from the specified steps of the pipeline. Method Workflow: - The method first checks if there are any script objects in the pipeline. If the pipeline is empty, it returns a message indicating that there is nothing to execute. - It determines the start and stop indices for the range of steps to execute. If idx is not provided, it defaults to executing all steps from the last executed position. - If a specific index or list of indices is provided, it executes only those steps. - The pipeline steps are executed in order, combining the scripts using the >> operator for sequential execution. - The generated script includes comments indicating the current run step and pipeline range, based on the specified verbosity level. - The final combined script is returned as a string. Example Usage: -------------- >>> p = pipescript() >>> # Execute the entire pipeline >>> full_script = p.do() >>> # Execute steps 0 and 2 only >>> partial_script = p.do([0, 2]) >>> # Execute step 1 with minimal verbosity >>> minimal_script = p.do(idx=1, verbosity=0) Notes: - The method uses modular arithmetic to handle index wrapping, allowing for cyclic execution of pipeline steps. - If the pipeline is empty, the method returns the string "# empty pipe - nothing to do". - The globalscript is initialized or updated with each step's script, and the USER definitions are accumulated across the steps. - The command string self.cmd is updated with the generated script for each step in the specified range. Raises: - None: The method does not raise exceptions directly, but an empty pipeline will result in the return of "# empty pipe - nothing to do". """ verbosity = 0 if verbose is False else verbosity if len(self)>0: # ranges ntot = len(self) stop = ntot-1 if (self.globalscript == None) or (self.globalscript == []) or not self.executed[0] or forced: start = 0 self.cmd = "" else: start = self.nrun if start>stop: return self.cmd if idx is None: idx = range(start,stop+1) if isinstance(idx,range): idx = list(idx) if isinstance(idx,int): idx = [idx] start,stop = min(idx),max(idx) # do for i in idx: j = i % ntot if j==0: self.globalscript = self.listscript[j] else: self.globalscript = self.globalscript >> self.listscript[j] name = " "+self.name[i]+" " if verbosity>0: self.cmd += "\n\n#\t --- run step [%d/%d] --- [%s] %20s\n" % \ (j,ntot-1,name.center(50,"="),"pipeline [%d]-->[%d]" %(start,stop)) else: self.cmd +="\n" self.globalscript.USER = self.globalscript.USER + self.listUSER[j] self.cmd += self.globalscript.do(printflag=printflag,verbose=verbosity>1) self.executed[i] = True self.cmd = self.cmd.replace("\\n", "\n") # remove literal \\n if any (dscript.save add \\n) return remove_comments(self.cmd) if verbosity==0 else self.cmd else: return "# empty pipe - nothing to do" def dscript(self, name=None, printflag=None, verbose=None, verbosity=None, **USER)-
Convert the current pipescript object to a dscript object.
This method merges the STATIC, GLOBAL, and LOCAL variable spaces from each step in the pipescript into a single dynamic script per step in the dscript. Each step in the pipescript is transformed into a dynamic script in the dscript, where variable spaces are combined using the following order:
- STATIC: Definitions specific to each script in the pipescript.
- GLOBAL: User variables shared across steps from a specific point onwards.
- LOCAL: User variables for each individual step.
Parameters:
verbose : bool, optional Controls verbosity of the dynamic scripts in the resulting dscript object. If None, the verbosity setting of the pipescript will be used.
**USER : scriptobjectdata(), optional Additional user-defined variables that can override existing static variables in the dscript object or be added to it.
Returns:
outd : dscript A dscript object that contains all steps of the pipescript as dynamic scripts. Each step from the pipescript is added as a dynamic script with the same content and combined variable spaces.
Expand source code
def dscript(self, name=None, printflag=None, verbose=None, verbosity=None, **USER): """ Convert the current pipescript object to a dscript object. This method merges the STATIC, GLOBAL, and LOCAL variable spaces from each step in the pipescript into a single dynamic script per step in the dscript. Each step in the pipescript is transformed into a dynamic script in the dscript, where variable spaces are combined using the following order: 1. STATIC: Definitions specific to each script in the pipescript. 2. GLOBAL: User variables shared across steps from a specific point onwards. 3. LOCAL: User variables for each individual step. Parameters: ----------- verbose : bool, optional Controls verbosity of the dynamic scripts in the resulting dscript object. If None, the verbosity setting of the pipescript will be used. **USER : scriptobjectdata(), optional Additional user-defined variables that can override existing static variables in the dscript object or be added to it. Returns: -------- outd : dscript A dscript object that contains all steps of the pipescript as dynamic scripts. Each step from the pipescript is added as a dynamic script with the same content and combined variable spaces. """ # Local imports from pizza.dscript import dscript, ScriptTemplate, lambdaScriptdata # verbosity printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity # Adjust name if name is None: if isinstance(self.name, str): name = self.name elif isinstance(self.name, list): name = ( self.name[0] if len(self.name) == 1 else self.name[0] + "..." + self.name[-1] ) # Create the dscript container with the pipescript name as the userid outd = dscript(userid=name, verbose=self.verbose, **USER) # Initialize static merged definitions staticmerged_definitions = lambdaScriptdata() # Track used variables per step step_used_variables = [] # Loop over each step in the pipescript for i, script in enumerate(self.listscript): # Merge STATIC, GLOBAL, and LOCAL variables for the current step static_vars = self.listUSER[i] # script.DEFINITIONS global_vars = script.DEFINITIONS # self.scripts[i].USER local_vars = script.USER # self.USER[i] refreshed_globalvars = static_vars + global_vars # Detect variables used in the current template used_variables = set(script.detect_variables()) step_used_variables.append(used_variables) # Track used variables for this step # Copy all current variables to local_static_updates and remove matching variables from staticmerged_definitions local_static_updates = lambdaScriptdata(**local_vars) for var, value in refreshed_globalvars.items(): if var in staticmerged_definitions: if (getattr(staticmerged_definitions, var) != value) and (var not in local_vars): setattr(local_static_updates, var, value) else: setattr(staticmerged_definitions, var, value) # Create the dynamic script for this step using the method in dscript key_name = i # Use the index 'i' as the key in TEMPLATE content = script.TEMPLATE # Use the helper method in dscript to add this dynamic script outd.add_dynamic_script( key=key_name, content=content, definitions = lambdaScriptdata(**local_static_updates), verbose=self.verbose if verbose is None else verbose, userid=self.name[i] ) # Set eval=True only if variables are detected in the template if outd.TEMPLATE[key_name].detect_variables(): outd.TEMPLATE[key_name].eval = True # Compute the union of all used variables across all steps global_used_variables = set().union(*step_used_variables) # Filter staticmerged_definitions to keep only variables that are used filtered_definitions = { var: value for var, value in staticmerged_definitions.items() if var in global_used_variables } # Assign the filtered definitions along with USER variables to outd.DEFINITIONS outd.DEFINITIONS = lambdaScriptdata(**filtered_definitions) return outd def getUSER(self, idx, key)-
getUSER get USER variable getUSER(idx,varname)
Expand source code
def getUSER(self,idx,key): """ getUSER get USER variable getUSER(idx,varname) """ if isinstance(idx,int) and (idx>=0) and (idx<self.n): self.listUSER[idx].getattr(key) else: raise IndexError(f"the index in the pipe should be comprised between 0 and {len(self)-1}") def header(self, verbose=True, verbosity=None, style=4)-
Generate a formatted header for the pipescript file.
Parameters
verbosity (bool, optional): If specified, overrides the instance's
verbosesetting. Defaults to the instance'sverbose. style (int from 1 to 6, optional): ASCII style to frame the header (default=4)Returns
str- A formatted string representing the pipescript object. Returns an empty string if verbosity is False.
The header includes: - Total number of scripts in the pipeline. - The verbosity setting. - The range of scripts from the first to the last script. - All enclosed within an ASCII frame that adjusts to the content.
Expand source code
def header(self, verbose=True,verbosity=None, style=4): """ Generate a formatted header for the pipescript file. Parameters: verbosity (bool, optional): If specified, overrides the instance's `verbose` setting. Defaults to the instance's `verbose`. style (int from 1 to 6, optional): ASCII style to frame the header (default=4) Returns: str: A formatted string representing the pipescript object. Returns an empty string if verbosity is False. The header includes: - Total number of scripts in the pipeline. - The verbosity setting. - The range of scripts from the first to the last script. - All enclosed within an ASCII frame that adjusts to the content. """ verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity if not verbosity: return "" # Prepare the header content lines = [ f"PIPESCRIPT with {self.n} scripts | Verbosity: {verbosity}", "", f"From: <{str(self.scripts[0])}> To: <{str(self.scripts[-1])}>", ] # Use the shared method to format the header return frame_header(lines,style=style) def rename(self, name='', idx=None)-
rename scripts in the pipe p.rename(idx=[0,2,3],name=["A","B","C"])
Expand source code
def rename(self,name="",idx=None): """ rename scripts in the pipe p.rename(idx=[0,2,3],name=["A","B","C"]) """ if isinstance(name,list): if len(name)==len(self) and idx==None: self.name = name elif len(name) == len(idx): for i in range(len(idx)): self.rename(name[i],idx[i]) else: IndexError(f"the number of indices {len(idx)} does not match the number of names {len(name)}") elif idx !=None and idx<len(self) and name!="": self.name[idx] = name else: raise ValueError("provide a non empty name and valid index") def script(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False, style=4)-
script the pipeline or parts of the pipeline s = p.script() s = p.script([0,2])
Parameters: - idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. If None, all steps from the current position to the end are executed. A list of indices can be provided to execute specific steps, or a single integer can be passed to execute a specific step. Default is None. - printflag (bool, optional): If True, the generated script for each step is printed to the console. Default is True. - verbosity (int, optional): Controls the level of detail in the generated script. - 0: Minimal output, no comments. - 1: Basic comments for run steps. - 2: Detailed comments with additional information. Default is 2. - forced (bool, optional): If True, all scripts are regenerated - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with
+,-, and|2. Double-line frame with╔,═, and║3. Rounded corners with.,',-, and|4. Thick outer frame with#,=, and#5. Box drawing characters with┌,─, and│6. Minimalist dotted frame with.,:, and.Default is4(thick outer frame).Expand source code
def script(self,idx=None, printflag=True, verbosity=2, verbose=None, forced=False, style=4): """ script the pipeline or parts of the pipeline s = p.script() s = p.script([0,2]) Parameters: - idx (list, range, or int, optional): Specifies which steps of the pipeline to execute. If None, all steps from the current position to the end are executed. A list of indices can be provided to execute specific steps, or a single integer can be passed to execute a specific step. Default is None. - printflag (bool, optional): If True, the generated script for each step is printed to the console. Default is True. - verbosity (int, optional): Controls the level of detail in the generated script. - 0: Minimal output, no comments. - 1: Basic comments for run steps. - 2: Detailed comments with additional information. Default is 2. - forced (bool, optional): If True, all scripts are regenerated - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with `+`, `-`, and `|` 2. Double-line frame with `╔`, `═`, and `║` 3. Rounded corners with `.`, `'`, `-`, and `|` 4. Thick outer frame with `#`, `=`, and `#` 5. Box drawing characters with `┌`, `─`, and `│` 6. Minimalist dotted frame with `.`, `:`, and `.` Default is `4` (thick outer frame). """ printflag = self.printflag if printflag is None else printflag verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity=0 if verbose is False else verbosity s = script(printflag=printflag, verbose=verbosity>0) s.name = "pipescript" s.description = "pipeline with %d scripts" % len(self) if len(self)>1: s.userid = self.name[0]+"->"+self.name[-1] elif len(self)==1: s.userid = self.name[0] else: s.userid = "empty pipeline" s.TEMPLATE = self.header(verbosity=verbosity, style=style) + "\n" +\ self.do(idx, printflag=printflag, verbosity=verbosity, verbose=verbose, forced=forced) s.DEFINITIONS = duplicate(self.globalscript.DEFINITIONS) s.USER = duplicate(self.globalscript.USER) return s def setUSER(self, idx, key, value)-
setUSER sets USER variables setUSER(idx,varname,varvalue)
Expand source code
def setUSER(self,idx,key,value): """ setUSER sets USER variables setUSER(idx,varname,varvalue) """ if isinstance(idx,int) and (idx>=0) and (idx<self.n): self.listUSER[idx].setattr(key,value) else: raise IndexError(f"the index in the pipe should be comprised between 0 and {len(self)-1}") def write(self, file, printflag=False, verbosity=2, verbose=None, overwrite=False)-
Write the combined script to a file.
Parameters
file (str): The file path where the script will be saved. printflag (bool): Flag to enable/disable printing of details. verbosity (int): Level of verbosity for the script generation. verbose (bool or None): If True, enables verbose mode; if None, defaults to the instance's verbosity. overwrite (bool): Whether to overwrite the file if it already exists. Default is False.
Returns: str: The full absolute path of the file written.
Raises
FileExistsError- If the file already exists and overwrite is False.
Notes
- This method combines the individual scripts within the
pipescriptobject and saves the resulting script to the specified file. - If
overwriteis False and the file exists, an error is raised. - If
verboseis True and the file is overwritten, a warning is displayed.
Expand source code
def write(self, file, printflag=False, verbosity=2, verbose=None, overwrite=False): """ Write the combined script to a file. Parameters: file (str): The file path where the script will be saved. printflag (bool): Flag to enable/disable printing of details. verbosity (int): Level of verbosity for the script generation. verbose (bool or None): If True, enables verbose mode; if None, defaults to the instance's verbosity. overwrite (bool): Whether to overwrite the file if it already exists. Default is False. Returns: str: The full absolute path of the file written. Raises: FileExistsError: If the file already exists and overwrite is False. Notes: - This method combines the individual scripts within the `pipescript` object and saves the resulting script to the specified file. - If `overwrite` is False and the file exists, an error is raised. - If `verbose` is True and the file is overwritten, a warning is displayed. """ # Generate the combined script myscript = self.script(printflag=printflag, verbosity=verbosity, verbose=verbose, forced=True) # Call the script's write method with the overwrite parameter return myscript.write(file, printflag=printflag, verbose=verbose, overwrite=overwrite)
- Pipeline Construction: Create pipelines of scripts, combining multiple
script objects,
class script (persistentfile=True, persistentfolder=None, printflag=False, verbose=False, verbosity=None, **userdefinitions)-
script: A Core Class for Flexible LAMMPS Script Generation
The
scriptclass provides a flexible framework for generating dynamic LAMMPS script sections. It supports various LAMMPS sections such as "GLOBAL", "INITIALIZE", "GEOMETRY", "INTERACTIONS", and more, while allowing users to define custom sections with variable definitions, templates, and dynamic evaluation of script content.Key Features:
- Dynamic Script Generation: Easily define and manage script sections, using templates and definitions to dynamically generate LAMMPS-compatible scripts.
- Script Concatenation: Combine multiple script sections while managing variable precedence and ensuring that definitions propagate as expected.
- Flexible Variable Management: Separate
DEFINITIONSfor static variables andUSERfor user-defined variables, with clear rules for inheritance and precedence. - Operators for Advanced Script Handling: Use
+,&,>>,|, and**operators for script merging, static execution, right-shifting of definitions, and more. - Pipeline Support: Integrate scripts into pipelines, with full support for staged execution, variable inheritance, and reordering of script sections.
Practical Use Cases:
- LAMMPS Automation: Automate the generation of complex LAMMPS scripts by defining reusable script sections with variables and templates.
- Multi-Step Simulations: Manage multi-step simulations by splitting large scripts into smaller, manageable sections and combining them as needed.
- Advanced Script Control: Dynamically modify script behavior by overriding variables or using advanced operators to concatenate, pipe, or merge scripts.
Methods:
init(self, persistentfile=True, persistentfolder=None, printflag=False, verbose=False, **userdefinitions): Initializes a new
scriptobject, with optional user-defined variables passed asuserdefinitions.do(self, printflag=None, verbose=None): Generates the LAMMPS script based on the current configuration, evaluating templates and definitions to produce the final output.
script(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): Generate the final LAMMPS script from the pipeline or a subset of the pipeline.
add(self, s): Overloads the
+operator to concatenate script objects, merging definitions and templates while maintaining variable precedence.and(self, s): Overloads the
&operator for static execution, combining the generated scripts of two script objects without merging their definitions.mul(self, ntimes): Overloads the
*operator to repeat the scriptntimes, returning a new script object with repeated sections.pow(self, ntimes): Overloads the
**operator to concatenate the script with itselfntimes, similar to the&operator, but repeated.or(self, pipe): Overloads the pipe (
|) operator to integrate the script into a pipeline, returning apipescriptobject.write(self, file, printflag=True, verbose=False): Writes the generated script to a file, including headers with metadata.
tmpwrite(self): Writes the script to a temporary file, creating both a full version and a clean version without comments.
printheader(txt, align="^", width=80, filler="~"): Static method to print formatted headers, useful for organizing output.
copy(self): Creates a shallow copy of the script object.
deepcopy(self, memo): Creates a deep copy of the script object, duplicating all internal variables.
Additional Features:
- Customizable Templates: Use string templates with variable placeholders
(e.g.,
${value}) to dynamically generate script lines. - Static and User-Defined Variables: Manage global
DEFINITIONSfor static variables andUSERvariables for dynamic, user-defined settings. - Advanced Operators: Leverage a range of operators (
+,>>,|,&) to manipulate script content, inherit definitions, and control variable precedence. - Verbose Output: Control verbosity to include detailed comments and debugging information in generated scripts.
Original Content:
The
scriptclass supports LAMMPS section generation and variable management with features such as: - Dynamic Evaluation of Scripts: Definitions and templates are evaluated at runtime, allowing for flexible and reusable scripts. - Inheritance of Definitions: Variable definitions can be inherited from previous sections, allowing for modular script construction. - Precedence Rules for Variables: When scripts are concatenated, definitions from the left take precedence, ensuring that the first defined values are preserved. - Instance and Global Variables: Instance variables are set via theUSERobject, while global variables (shared across instances) are managed inDEFINITIONS. - Script Pipelines: Scripts can be integrated into pipelines for sequential execution and dynamic variable propagation. - Flexible Output Formats: Lists are expanded into space-separated strings, while tuples are expanded with commas, making the output more readable.Example Usage:
from pizza.script import script, scriptdata class example_section(script): DEFINITIONS = scriptdata( X = 10, Y = 20, result = "${X} + ${Y}" ) TEMPLATE = "${result} = ${X} + ${Y}" s1 = example_section() s1.USER.X = 5 s1.do()The output for
s1.do()will be:25 = 5 + 20With additional sections, scripts can be concatenated and executed as a single entity, with inheritance of variables and customizable behavior.
-------------------------------------- OVERVIEW ANDE DETAILED FEATURES -------------------------------------- The class script enables to generate dynamically LAMMPS sections "NONE","GLOBAL","INITIALIZE","GEOMETRY","DISCRETIZATION", "BOUNDARY","INTERACTIONS","INTEGRATION","DUMP","STATUS","RUN" # %% This the typical construction for a class class XXXXsection(script): "" " LAMMPS script: XXXX session "" " name = "XXXXXX" description = name+" section" position = 0 section = 0 userid = "example" version = 0.1 DEFINITIONS = scriptdata( value= 1, expression= "${value+1}", text= "$my text" ) TEMPLATE = "" " # :UNDEF SECTION: # to be defined LAMMPS code with ${value}, ${expression}, ${text} "" " DEFINTIONS can be inherited from a previous section DEFINITIONS = previousection.DEFINTIONS + scriptdata( value= 1, expression= "${value+1}", text= "$my text" ) Recommandation: Split a large script into a small classes or actions An example of use could be: move1 = translation(displacement=10)+rotation(angle=30) move2 = shear(rate=0.1)+rotation(angle=20) bigmove = move1+move2+move1 script = bigmove.do() generates the script NOTE1: Use the print() and the method do() to get the script interpreted NOTE2: DEFINITIONS can be pretified using DEFINITIONS.generator() NOTE3: Variables can extracted from a template using TEMPLATE.scan() NOTE4: Scripts can be joined (from top down to bottom). The first definitions keep higher precedence. Please do not use a variable twice with different contents. myscript = s1 + s2 + s3 will propagate the definitions without overwritting previous values). myscript will be defined as s1 (same name, position, userid, etc.) myscript += s appends the script section s to myscript NOTE5: rules of precedence when script are concatenated The attributes from the class (name, description...) are kept from the left The values of the right overwrite all DEFINITIONS NOTE6: user variables (instance variables) can set with USER or at the construction myclass_instance = myclass(myvariable = myvalue) myclass_instance.USER.myvariable = myvalue NOTE7: how to change variables for all instances at once? In the example below, let x is a global variable (instance independent) and y a local variable (instance dependent) instance1 = myclass(y=1) --> y=1 in instance1 instance2 = myclass(y=2) --> y=2 in instance2 instance3.USER.y=3 --> y=3 in instance3 instance1.DEFINITIONS.x = 10 --> x=10 in all instances (1,2,3) If x is also defined in the USER section, its value will be used Setting instance3.USER.x = 30 will assign x=30 only in instance3 NOTE8: if a the script is used with different values for a same parameter use the operator & to concatenate the results instead of the script example: load(file="myfile1") & load(file="myfile2) & load(file="myfile3")+... NOTE9: lists (e.g., [1,2,'a',3] are expanded ("1 2 a 3") tuples (e.g. (1,2)) are expanded ("1,2") It is easier to read ["lost","ignore"] than "$ lost ignore" NOTE 10: New operators >> and || extend properties + merge all scripts but overwrite definitions & execute statically script content >> pass only DEFINITIONS but not TEMPLATE to the right | pipe execution such as in Bash, the result is a pipeline NOTE 11: Scripts in pipelines are very flexible, they support full indexing à la Matlab, including staged executions method do(idx) generates the script corresponding to indices idx method script(idx) generates the corresponding script object --------------------------[ FULL EXAMPLE ]----------------------------- # Import the class from pizza.script import * # Override the class globalsection class scriptexample(globalsection): description = "demonstrate commutativity of additions" verbose = True DEFINITIONS = scriptdata( X = 10, Y = 20, R1 = "${X}+${Y}", R2 = "${Y}+${X}" ) TEMPLATE = "" " # Property of the addition ${R1} = ${X} + ${Y} ${R2} = ${Y} + ${X} "" " # derived from scriptexample, X and Y are reused class scriptexample2(scriptexample): description = "demonstrate commutativity of multiplications" verbose = True DEFINITIONS = scriptexample.DEFINITIONS + scriptdata( R3 = "${X} * ${Y}", R4 = "${Y} * ${X}", ) TEMPLATE = "" " # Property of the multiplication ${R3} = ${X} * ${Y} ${R4} = ${Y} * ${X} "" " # call the first class and override the values X and Y s1 = scriptexample() s1.USER.X = 1 # method 1 of override s1.USER.Y = 2 s1.do() # call the second class and override the values X and Y s2 = scriptexample2(X=1000,Y=2000) # method 2 s2.do() # Merge the two scripts s = s1+s2 print("this is my full script") s.description s.do() # The result for s1 is 3 = 1 + 2 3 = 2 + 1 # The result for s2 is 2000000 = 1000 * 2000 2000000 = 2000 * 1000 # The result for s=s1+s2 is # Property of the addition 3000 = 1000 + 2000 3000 = 2000 + 1000 # Property of the multiplication 2000000 = 1000 * 2000 2000000 = 2000 * 1000constructor adding instance definitions stored in USER
Expand source code
class script: """ script: A Core Class for Flexible LAMMPS Script Generation The `script` class provides a flexible framework for generating dynamic LAMMPS script sections. It supports various LAMMPS sections such as "GLOBAL", "INITIALIZE", "GEOMETRY", "INTERACTIONS", and more, while allowing users to define custom sections with variable definitions, templates, and dynamic evaluation of script content. Key Features: ------------- - **Dynamic Script Generation**: Easily define and manage script sections, using templates and definitions to dynamically generate LAMMPS-compatible scripts. - **Script Concatenation**: Combine multiple script sections while managing variable precedence and ensuring that definitions propagate as expected. - **Flexible Variable Management**: Separate `DEFINITIONS` for static variables and `USER` for user-defined variables, with clear rules for inheritance and precedence. - **Operators for Advanced Script Handling**: Use `+`, `&`, `>>`, `|`, and `**` operators for script merging, static execution, right-shifting of definitions, and more. - **Pipeline Support**: Integrate scripts into pipelines, with full support for staged execution, variable inheritance, and reordering of script sections. Practical Use Cases: -------------------- - **LAMMPS Automation**: Automate the generation of complex LAMMPS scripts by defining reusable script sections with variables and templates. - **Multi-Step Simulations**: Manage multi-step simulations by splitting large scripts into smaller, manageable sections and combining them as needed. - **Advanced Script Control**: Dynamically modify script behavior by overriding variables or using advanced operators to concatenate, pipe, or merge scripts. Methods: -------- __init__(self, persistentfile=True, persistentfolder=None, printflag=False, verbose=False, **userdefinitions): Initializes a new `script` object, with optional user-defined variables passed as `userdefinitions`. do(self, printflag=None, verbose=None): Generates the LAMMPS script based on the current configuration, evaluating templates and definitions to produce the final output. script(self, idx=None, printflag=True, verbosity=2, verbose=None, forced=False): Generate the final LAMMPS script from the pipeline or a subset of the pipeline. add(self, s): Overloads the `+` operator to concatenate script objects, merging definitions and templates while maintaining variable precedence. and(self, s): Overloads the `&` operator for static execution, combining the generated scripts of two script objects without merging their definitions. __mul__(self, ntimes): Overloads the `*` operator to repeat the script `ntimes`, returning a new script object with repeated sections. __pow__(self, ntimes): Overloads the `**` operator to concatenate the script with itself `ntimes`, similar to the `&` operator, but repeated. __or__(self, pipe): Overloads the pipe (`|`) operator to integrate the script into a pipeline, returning a `pipescript` object. write(self, file, printflag=True, verbose=False): Writes the generated script to a file, including headers with metadata. tmpwrite(self): Writes the script to a temporary file, creating both a full version and a clean version without comments. printheader(txt, align="^", width=80, filler="~"): Static method to print formatted headers, useful for organizing output. __copy__(self): Creates a shallow copy of the script object. __deepcopy__(self, memo): Creates a deep copy of the script object, duplicating all internal variables. Additional Features: -------------------- - **Customizable Templates**: Use string templates with variable placeholders (e.g., `${value}`) to dynamically generate script lines. - **Static and User-Defined Variables**: Manage global `DEFINITIONS` for static variables and `USER` variables for dynamic, user-defined settings. - **Advanced Operators**: Leverage a range of operators (`+`, `>>`, `|`, `&`) to manipulate script content, inherit definitions, and control variable precedence. - **Verbose Output**: Control verbosity to include detailed comments and debugging information in generated scripts. Original Content: ----------------- The `script` class supports LAMMPS section generation and variable management with features such as: - **Dynamic Evaluation of Scripts**: Definitions and templates are evaluated at runtime, allowing for flexible and reusable scripts. - **Inheritance of Definitions**: Variable definitions can be inherited from previous sections, allowing for modular script construction. - **Precedence Rules for Variables**: When scripts are concatenated, definitions from the left take precedence, ensuring that the first defined values are preserved. - **Instance and Global Variables**: Instance variables are set via the `USER` object, while global variables (shared across instances) are managed in `DEFINITIONS`. - **Script Pipelines**: Scripts can be integrated into pipelines for sequential execution and dynamic variable propagation. - **Flexible Output Formats**: Lists are expanded into space-separated strings, while tuples are expanded with commas, making the output more readable. Example Usage: -------------- ``` from pizza.script import script, scriptdata class example_section(script): DEFINITIONS = scriptdata( X = 10, Y = 20, result = "${X} + ${Y}" ) TEMPLATE = "${result} = ${X} + ${Y}" s1 = example_section() s1.USER.X = 5 s1.do() ``` The output for `s1.do()` will be: ``` 25 = 5 + 20 ``` With additional sections, scripts can be concatenated and executed as a single entity, with inheritance of variables and customizable behavior. -------------------------------------- OVERVIEW ANDE DETAILED FEATURES -------------------------------------- The class script enables to generate dynamically LAMMPS sections "NONE","GLOBAL","INITIALIZE","GEOMETRY","DISCRETIZATION", "BOUNDARY","INTERACTIONS","INTEGRATION","DUMP","STATUS","RUN" # %% This the typical construction for a class class XXXXsection(script): "" " LAMMPS script: XXXX session "" " name = "XXXXXX" description = name+" section" position = 0 section = 0 userid = "example" version = 0.1 DEFINITIONS = scriptdata( value= 1, expression= "${value+1}", text= "$my text" ) TEMPLATE = "" " # :UNDEF SECTION: # to be defined LAMMPS code with ${value}, ${expression}, ${text} "" " DEFINTIONS can be inherited from a previous section DEFINITIONS = previousection.DEFINTIONS + scriptdata( value= 1, expression= "${value+1}", text= "$my text" ) Recommandation: Split a large script into a small classes or actions An example of use could be: move1 = translation(displacement=10)+rotation(angle=30) move2 = shear(rate=0.1)+rotation(angle=20) bigmove = move1+move2+move1 script = bigmove.do() generates the script NOTE1: Use the print() and the method do() to get the script interpreted NOTE2: DEFINITIONS can be pretified using DEFINITIONS.generator() NOTE3: Variables can extracted from a template using TEMPLATE.scan() NOTE4: Scripts can be joined (from top down to bottom). The first definitions keep higher precedence. Please do not use a variable twice with different contents. myscript = s1 + s2 + s3 will propagate the definitions without overwritting previous values). myscript will be defined as s1 (same name, position, userid, etc.) myscript += s appends the script section s to myscript NOTE5: rules of precedence when script are concatenated The attributes from the class (name, description...) are kept from the left The values of the right overwrite all DEFINITIONS NOTE6: user variables (instance variables) can set with USER or at the construction myclass_instance = myclass(myvariable = myvalue) myclass_instance.USER.myvariable = myvalue NOTE7: how to change variables for all instances at once? In the example below, let x is a global variable (instance independent) and y a local variable (instance dependent) instance1 = myclass(y=1) --> y=1 in instance1 instance2 = myclass(y=2) --> y=2 in instance2 instance3.USER.y=3 --> y=3 in instance3 instance1.DEFINITIONS.x = 10 --> x=10 in all instances (1,2,3) If x is also defined in the USER section, its value will be used Setting instance3.USER.x = 30 will assign x=30 only in instance3 NOTE8: if a the script is used with different values for a same parameter use the operator & to concatenate the results instead of the script example: load(file="myfile1") & load(file="myfile2) & load(file="myfile3")+... NOTE9: lists (e.g., [1,2,'a',3] are expanded ("1 2 a 3") tuples (e.g. (1,2)) are expanded ("1,2") It is easier to read ["lost","ignore"] than "$ lost ignore" NOTE 10: New operators >> and || extend properties + merge all scripts but overwrite definitions & execute statically script content >> pass only DEFINITIONS but not TEMPLATE to the right | pipe execution such as in Bash, the result is a pipeline NOTE 11: Scripts in pipelines are very flexible, they support full indexing à la Matlab, including staged executions method do(idx) generates the script corresponding to indices idx method script(idx) generates the corresponding script object --------------------------[ FULL EXAMPLE ]----------------------------- # Import the class from pizza.script import * # Override the class globalsection class scriptexample(globalsection): description = "demonstrate commutativity of additions" verbose = True DEFINITIONS = scriptdata( X = 10, Y = 20, R1 = "${X}+${Y}", R2 = "${Y}+${X}" ) TEMPLATE = "" " # Property of the addition ${R1} = ${X} + ${Y} ${R2} = ${Y} + ${X} "" " # derived from scriptexample, X and Y are reused class scriptexample2(scriptexample): description = "demonstrate commutativity of multiplications" verbose = True DEFINITIONS = scriptexample.DEFINITIONS + scriptdata( R3 = "${X} * ${Y}", R4 = "${Y} * ${X}", ) TEMPLATE = "" " # Property of the multiplication ${R3} = ${X} * ${Y} ${R4} = ${Y} * ${X} "" " # call the first class and override the values X and Y s1 = scriptexample() s1.USER.X = 1 # method 1 of override s1.USER.Y = 2 s1.do() # call the second class and override the values X and Y s2 = scriptexample2(X=1000,Y=2000) # method 2 s2.do() # Merge the two scripts s = s1+s2 print("this is my full script") s.description s.do() # The result for s1 is 3 = 1 + 2 3 = 2 + 1 # The result for s2 is 2000000 = 1000 * 2000 2000000 = 2000 * 1000 # The result for s=s1+s2 is # Property of the addition 3000 = 1000 + 2000 3000 = 2000 + 1000 # Property of the multiplication 2000000 = 1000 * 2000 2000000 = 2000 * 1000 """ # metadata metadata = get_metadata() # retrieve all metadata type = "script" # type (class name) name = "empty script" # name description = "it is an empty script" # description position = 0 # 0 = root section = 0 # section (0=undef) userid = "undefined" # user name version = metadata["version"] # version license = metadata["license"] email = metadata["email"] # email verbose = False # set it to True to force verbosity _contact = ("INRAE\SAYFOOD\olivier.vitrac@agroparistech.fr", "INRAE\SAYFOOD\william.jenkinson@agroparistech.fr", "INRAE\SAYFOOD\han.chen@inrae.fr") SECTIONS = ["NONE","GLOBAL","INITIALIZE","GEOMETRY","DISCRETIZATION", "BOUNDARY","INTERACTIONS","INTEGRATION","DUMP","STATUS","RUN"] # Main class variables # These definitions are for instances DEFINITIONS = scriptdata() TEMPLATE = """ # empty LAMMPS script """ # constructor def __init__(self,persistentfile=True, persistentfolder = None, printflag = False, verbose = False, verbosity = None, **userdefinitions): """ constructor adding instance definitions stored in USER """ if persistentfolder is None: persistentfolder = get_tmp_location() self.persistentfile = persistentfile self.persistentfolder = persistentfolder self.printflag = printflag self.verbose = verbose if verbosity is None else verbosity>0 self.verbosity = 0 if not verbose else verbosity self.USER = scriptdata(**userdefinitions) # print method for headers (static, no implicit argument) @staticmethod def printheader(txt,align="^",width=80,filler="~"): """ print header """ if txt=="": print("\n"+filler*(width+6)+"\n") else: print(("\n{:"+filler+"{align}{width}}\n").format(' [ '+txt+' ] ', align=align, width=str(width))) # String representation def __str__(self): """ string representation """ return f"{self.type}:{self.name}:{self.userid}" # Display/representation method def __repr__(self): """ disp method """ stamp = str(self) self.printheader(f"{stamp} | version={self.version}",filler="/") self.printheader("POSITION & DESCRIPTION",filler="-",align=">") print(f" position: {self.position}") print(f" role: {self.role} (section={self.section})") print(f" description: {self.description}") self.printheader("DEFINITIONS",filler="-",align=">") if len(self.DEFINITIONS)<15: self.DEFINITIONS.__repr__() else: print("too many definitions: ",self.DEFINITIONS) if self.verbose: self.printheader("USER",filler="-",align=">") self.USER.__repr__() self.printheader("TEMPLATE",filler="-",align=">") print(self.TEMPLATE) self.printheader("SCRIPT",filler="-",align=">") print(self.do(printflag=False)) self.printheader("") return stamp # Extract attributes within the class def getallattributes(self): """ advanced method to get all attributes including class ones""" return {k: getattr(self, k) for k in dir(self) \ if (not k.startswith('_')) and (not isinstance(getattr(self, k),types.MethodType))} # Generate the script def do(self,printflag=None,verbose=None): """ Generate the LAMMPS script based on the current configuration. This method generates a LAMMPS-compatible script from the templates and definitions stored in the `script` object. The generated script can be displayed, returned, and optionally include comments for debugging or clarity. Parameters: - printflag (bool, optional): If True, the generated script is printed to the console. Default is True. - verbose (bool, optional): If True, comments and additional information are included in the generated script. If False, comments are removed. Default is True. Returns: - str: The generated LAMMPS script. Method Behavior: - The method first collects all key-value pairs from `DEFINITIONS` and `USER` objects, which store the configuration data for the script. - Lists and tuples in the collected data are formatted into a readable string with proper separators (space for lists, comma for tuples) and prefixed with a '%' to indicate comments. - The generated command template is formatted and evaluated using the collected data. - If `verbose` is set to False, comments in the generated script are removed. - The script is then printed if `printflag` is True. - Finally, the formatted script is returned as a string. Example Usage: -------------- >>> s = script() >>> s.do(printflag=True, verbose=True) units si dimension 3 boundary f f f # Additional script commands... >>> s.do(printflag=False, verbose=False) 'units si\ndimension 3\nboundary f f f\n# Additional script commands...' Notes: - Comments are indicated in the script with '%' or '#'. - The [position {self.position}:{self.userid}] marker is inserted for tracking script sections or modifications. """ printflag = self.printflag if printflag is None else printflag verbose = self.verbose if verbose is None else verbose inputs = self.DEFINITIONS + self.USER for k in inputs.keys(): if isinstance(inputs.getattr(k),list): inputs.setattr(k,"% "+span(inputs.getattr(k))) elif isinstance(inputs.getattr(k),tuple): inputs.setattr(k,"% "+span(inputs.getattr(k),sep=",")) cmd = inputs.formateval(self.TEMPLATE) cmd = cmd.replace("[comment]",f"[position {self.position}:{self.userid}]") if not verbose: cmd=remove_comments(cmd) if printflag: print(cmd) return cmd # Return the role of the script (based on section) @property def role(self): """ convert section index into a role (section name) """ if self.section in range(len(self.SECTIONS)): return self.SECTIONS[self.section] else: return "" # override + def __add__(self,s): """ overload addition operator """ from pizza.dscript import dscript from pizza.group import group, groupcollection from pizza.region import region if isinstance(s,script): dup = duplicate(self) dup.DEFINITIONS = dup.DEFINITIONS + s.DEFINITIONS dup.USER = dup.USER + s.USER dup.TEMPLATE = "\n".join([dup.TEMPLATE,s.TEMPLATE]) return dup elif isinstance(s,pipescript): return pipescript(self, printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) | s elif isinstance(s,dscript): return self + s.script(printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) elif isinstance(s, scriptobjectgroup): return self + s.script(printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) elif isinstance(s, group): return self + s.script(printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) elif isinstance(s, groupcollection): return self + s.script(printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) elif isinstance(s,region): return self + s.script(printflag=s.printflag,verbose=s.verbose,verbosity=s.verbosity) raise TypeError(f"the second operand in + must a script, pipescript, scriptobjectgroup,\n group, groupcollection or region object not {type(s)}") # override += def _iadd__(self,s): """ overload addition operator """ if isinstance(s,script): self.DEFINITIONS = self.DEFINITIONS + s.DEFINITIONS self.USER = self.USER + s.USER self.TEMPLATE = "\n".join([self.TEMPLATE,s.TEMPLATE]) else: raise TypeError("the second operand must a script object") # override >> def __rshift__(self,s): """ overload right shift operator (keep only the last template) """ if isinstance(s,script): dup = duplicate(self) dup.DEFINITIONS = dup.DEFINITIONS + s.DEFINITIONS dup.USER = dup.USER + s.USER dup.TEMPLATE = s.TEMPLATE return dup else: raise TypeError(f"the second operand in >> must a script object not {type(s)}") # override & def __and__(self,s): """ overload and operator """ if isinstance(s,script): dup = duplicate(self) dup.TEMPLATE = "\n".join([self.do(printflag=False,verbose=False),s.do(printflag=False,verbose=False)]) return dup raise TypeError(f"the second operand in & must a script object not {type(s)}") # override * def __mul__(self,ntimes): """ overload * operator """ if isinstance(ntimes, int) and ntimes>0: res = duplicate(self) if ntimes>1: for n in range(1,ntimes): res += self return res raise ValueError("multiplicator should be a strictly positive integer") # override ** def __pow__(self,ntimes): """ overload ** operator """ if isinstance(ntimes, int) and ntimes>0: res = duplicate(self) if ntimes>1: for n in range(1,ntimes): res = res & self return res raise ValueError("multiplicator should be a strictly positive integer") # pipe scripts def __or__(self,pipe): """ overload | or for pipe """ from pizza.dscript import dscript from pizza.group import group, groupcollection from pizza.region import region if isinstance(pipe, dscript): rightarg = pipe.pipescript(printflag=pipe.printflag,verbose=pipe.verbose,verbosity=pipe.verbosity) elif isinstance(pipe,group): rightarg = pipe.script(printflag=pipe.printflag,verbose=pipe.verbose,verbosity=pipe.verbosity) elif isinstance(pipe,groupcollection): rightarg = pipe.script(printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) elif isinstance(pipe,region): rightarg = pipe.pscript(printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) else: rightarg = pipe if isinstance(rightarg,(pipescript,script,scriptobject,scriptobjectgroup)): return pipescript(self,printflag=self.printflag,verbose=self.verbose,verbosity=self.verbosity) | rightarg else: raise ValueError("the argument in | must a pipescript, a scriptobject or a scriptobjectgroup not {type(s)}") def header(self, verbose=True, verbosity=None, style=2): """ Generate a formatted header for the script file. Parameters: verbosity (bool, optional): If specified, overrides the instance's `verbose` setting. Defaults to the instance's `verbose`. style (int from 1 to 6, optional): ASCII style to frame the header (default=2) Returns: str: A formatted string representing the script's metadata and initialization details. Returns an empty string if verbosity is False. The header includes: - Script version, license, and contact email. - User ID and the number of initialized definitions. - Current system user, hostname, and working directory. - Persistent filename and folder path. - Timestamp of the header generation. """ verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity if not verbose: return "" # Prepare the header content lines = [ f"PIZZA.SCRIPT FILE v{script.version} | License: {script.license} | Email: {script.email}", "", f"<{str(self)}>", f"Initialized with {len(self.USER)} definitions | Verbosity: {verbosity}", f"Persistent file: \"{self.persistentfile}\" | Folder: \"{self.persistentfolder}\"", "", f"Generated on: {getpass.getuser()}@{socket.gethostname()}:{os.getcwd()}", f"{datetime.datetime.now().strftime('%A, %B %d, %Y at %H:%M:%S')}", ] # Use the shared method to format the header return frame_header(lines,style=style) # write file def write(self, file, printflag=True, verbose=False, overwrite=False, style=2): """ Write the script to a file. Parameters: - file (str): The file path where the script will be saved. - printflag (bool): Flag to enable/disable printing of details. - verbose (bool): Flag to enable/disable verbose mode. - overwrite (bool): Whether to overwrite the file if it already exists. - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with `+`, `-`, and `|` 2. Double-line frame with `╔`, `═`, and `║` 3. Rounded corners with `.`, `'`, `-`, and `|` 4. Thick outer frame with `#`, `=`, and `#` 5. Box drawing characters with `┌`, `─`, and `│` 6. Minimalist dotted frame with `.`, `:`, and `.` Default is `2` (frame with rounded corners). Returns: str: The full absolute path of the file written. Raises: FileExistsError: If the file already exists and overwrite is False. """ # Resolve full path full_path = os.path.abspath(file) if os.path.exists(full_path) and not overwrite: raise FileExistsError(f"The file '{full_path}' already exists. Use overwrite=True to overwrite it.") if os.path.exists(full_path) and overwrite and verbose: print(f"Warning: Overwriting the existing file '{full_path}'.") # Generate the script and write to the file cmd = self.do(printflag=printflag, verbose=verbose) with open(full_path, "w") as f: print(self.header(verbosity=verbose, style=style), "\n", file=f) print(cmd, file=f) # Return the full path of the written file return full_path def tmpwrite(self, verbose=False, style=1): """ Write the script to a temporary file and create optional persistent copies. Parameters: verbose (bool, optional): Controls verbosity during script generation. Defaults to False. The method: - Creates a temporary file for the script, with platform-specific behavior: - On Windows (`os.name == 'nt'`), the file is not automatically deleted. - On other systems, the file is temporary and deleted upon closure. - Writes a header and the script content into the temporary file. - Optionally creates a persistent copy in the `self.persistentfolder` directory: - `script.preview.<suffix>`: A persistent copy of the temporary file. - `script.preview.clean.<suffix>`: A clean copy with comments and empty lines removed. - Handles cleanup and exceptions gracefully to avoid leaving orphaned files. - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with `+`, `-`, and `|` 2. Double-line frame with `╔`, `═`, and `║` 3. Rounded corners with `.`, `'`, `-`, and `|` 4. Thick outer frame with `#`, `=`, and `#` 5. Box drawing characters with `┌`, `─`, and `│` 6. Minimalist dotted frame with `.`, `:`, and `.` Default is `1` (basic box). Returns: TemporaryFile: The temporary file handle (non-Windows systems only). None: On Windows, the file is closed and not returned. Raises: Exception: If there is an error creating or writing to the temporary file. """ try: # OS-specific temporary file behavior if os.name == 'nt': # Windows ftmp = tempfile.NamedTemporaryFile(mode="w+b", prefix="script_", suffix=".txt", delete=False) else: # Other platforms ftmp = tempfile.NamedTemporaryFile(mode="w+b", prefix="script_", suffix=".txt") # Generate header and content header = ( f"# TEMPORARY PIZZA.SCRIPT FILE\n" f"# {'-' * 40}\n" f"{self.header(verbosity=verbose, style=style)}" ) content = ( header + "\n# This is a temporary file (it will be deleted automatically)\n\n" + self.do(printflag=False, verbose=verbose) ) # Write content to the temporary file ftmp.write(BOM_UTF8 + content.encode('utf-8')) ftmp.seek(0) # Reset file pointer to the beginning except Exception as e: # Handle errors gracefully ftmp.close() os.remove(ftmp.name) # Clean up the temporary file raise Exception(f"Failed to write to or handle the temporary file: {e}") from None print("\nTemporary File Header:\n", header, "\n") print("A temporary file has been generated here:\n", ftmp.name) # Persistent copy creation if self.persistentfile: ftmpname = os.path.basename(ftmp.name) fcopyname = os.path.join(self.persistentfolder, f"script.preview.{ftmpname.rsplit('_', 1)[1]}") copyfile(ftmp.name, fcopyname) print("A persistent copy has been created here:\n", fcopyname) # Create a clean copy without empty lines or comments with open(ftmp.name, "r") as f: lines = f.readlines() bom_utf8_str = BOM_UTF8.decode("utf-8") clean_lines = [ line for line in lines if line.strip() and not line.lstrip().startswith("#") and not line.startswith(bom_utf8_str) ] fcleanname = os.path.join(self.persistentfolder, f"script.preview.clean.{ftmpname.rsplit('_', 1)[1]}") with open(fcleanname, "w") as f: f.writelines(clean_lines) print("A clean copy has been created here:\n", fcleanname) # Handle file closure for Windows if os.name == 'nt': ftmp.close() return None else: return ftmp # Note that it was not the original intent to copy scripts def __copy__(self): """ copy method """ cls = self.__class__ copie = cls.__new__(cls) copie.__dict__.update(self.__dict__) return copie def __deepcopy__(self, memo): """ deep copy method """ cls = self.__class__ copie = cls.__new__(cls) memo[id(self)] = copie for k, v in self.__dict__.items(): setattr(copie, k, deepduplicate(v, memo)) return copie def detect_variables(self): """ Detects variables in the content of the template using the pattern r'\$\{(\w+)\}'. Returns: -------- list A list of unique variable names detected in the content. """ # Regular expression to match variables in the format ${varname} variable_pattern = re.compile(r'\$\{(\w+)\}') # Ensure TEMPLATE is iterable (split string into lines if needed) if isinstance(self.TEMPLATE, str): lines = self.TEMPLATE.splitlines() # Split string into lines elif isinstance(self.TEMPLATE, list): lines = self.TEMPLATE else: raise TypeError("TEMPLATE must be a string or a list of strings.") # Detect variables from all lines detected_vars = {variable for line in lines for variable in variable_pattern.findall(line)} # Return the list of unique variables return list(detected_vars)Subclasses
- lamdaScript
- pizza.dscript.lamdaScript
- pizza.region.LammpsGeneric
- pizza.script.boundarysection
- pizza.script.discretizationsection
- pizza.script.dumpsection
- pizza.script.geometrysection
- pizza.script.globalsection
- pizza.script.initializesection
- pizza.script.integrationsection
- pizza.script.interactionsection
- pizza.script.runsection
- pizza.script.statussection
Class variables
var DEFINITIONSvar SECTIONSvar TEMPLATEvar descriptionvar emailvar licensevar metadatavar namevar positionvar sectionvar typevar useridvar verbosevar version
Static methods
def printheader(txt, align='^', width=80, filler='~')-
print header
Expand source code
@staticmethod def printheader(txt,align="^",width=80,filler="~"): """ print header """ if txt=="": print("\n"+filler*(width+6)+"\n") else: print(("\n{:"+filler+"{align}{width}}\n").format(' [ '+txt+' ] ', align=align, width=str(width)))
Instance variables
var role-
convert section index into a role (section name)
Expand source code
@property def role(self): """ convert section index into a role (section name) """ if self.section in range(len(self.SECTIONS)): return self.SECTIONS[self.section] else: return ""
Methods
def detect_variables(self)-
Detects variables in the content of the template using the pattern r'\${(\w+)}'.
Returns:
list A list of unique variable names detected in the content.
Expand source code
def detect_variables(self): """ Detects variables in the content of the template using the pattern r'\$\{(\w+)\}'. Returns: -------- list A list of unique variable names detected in the content. """ # Regular expression to match variables in the format ${varname} variable_pattern = re.compile(r'\$\{(\w+)\}') # Ensure TEMPLATE is iterable (split string into lines if needed) if isinstance(self.TEMPLATE, str): lines = self.TEMPLATE.splitlines() # Split string into lines elif isinstance(self.TEMPLATE, list): lines = self.TEMPLATE else: raise TypeError("TEMPLATE must be a string or a list of strings.") # Detect variables from all lines detected_vars = {variable for line in lines for variable in variable_pattern.findall(line)} # Return the list of unique variables return list(detected_vars) def do(self, printflag=None, verbose=None)-
Generate the LAMMPS script based on the current configuration.
This method generates a LAMMPS-compatible script from the templates and definitions stored in the <code><a title="dscript.script" href="#dscript.script">script</a></code> object. The generated script can be displayed, returned, and optionally include comments for debugging or clarity. Parameters: - printflag (bool, optional): If True, the generated script is printed to the console. Default is True. - verbose (bool, optional): If True, comments and additional information are included in the generated script. If False, comments are removed. Default is True. Returns: - str: The generated LAMMPS script. Method Behavior: - The method first collects all key-value pairs from <code>DEFINITIONS</code> and <code>USER</code> objects, which store the configuration data for the script. - Lists and tuples in the collected data are formatted into a readable string with proper separators (space for lists, comma for tuples) and prefixed with a '%' to indicate comments. - The generated command template is formatted and evaluated using the collected data. - If <code>verbose</code> is set to False, comments in the generated script are removed. - The script is then printed if <code>printflag</code> is True. - Finally, the formatted script is returned as a string. Example Usage: -------------- >>> s = script() >>> s.do(printflag=True, verbose=True) units si dimension 3 boundary f f f # Additional script commands... >>> s.do(printflag=False, verbose=False) 'units sidimension 3 boundary f f f
Additional script commands…'
Notes: - Comments are indicated in the script with '%' or '#'. - The [position {self.position}:{self.userid}] marker is inserted for tracking script sections or modifications.Expand source code
def do(self,printflag=None,verbose=None): """ Generate the LAMMPS script based on the current configuration. This method generates a LAMMPS-compatible script from the templates and definitions stored in the `script` object. The generated script can be displayed, returned, and optionally include comments for debugging or clarity. Parameters: - printflag (bool, optional): If True, the generated script is printed to the console. Default is True. - verbose (bool, optional): If True, comments and additional information are included in the generated script. If False, comments are removed. Default is True. Returns: - str: The generated LAMMPS script. Method Behavior: - The method first collects all key-value pairs from `DEFINITIONS` and `USER` objects, which store the configuration data for the script. - Lists and tuples in the collected data are formatted into a readable string with proper separators (space for lists, comma for tuples) and prefixed with a '%' to indicate comments. - The generated command template is formatted and evaluated using the collected data. - If `verbose` is set to False, comments in the generated script are removed. - The script is then printed if `printflag` is True. - Finally, the formatted script is returned as a string. Example Usage: -------------- >>> s = script() >>> s.do(printflag=True, verbose=True) units si dimension 3 boundary f f f # Additional script commands... >>> s.do(printflag=False, verbose=False) 'units si\ndimension 3\nboundary f f f\n# Additional script commands...' Notes: - Comments are indicated in the script with '%' or '#'. - The [position {self.position}:{self.userid}] marker is inserted for tracking script sections or modifications. """ printflag = self.printflag if printflag is None else printflag verbose = self.verbose if verbose is None else verbose inputs = self.DEFINITIONS + self.USER for k in inputs.keys(): if isinstance(inputs.getattr(k),list): inputs.setattr(k,"% "+span(inputs.getattr(k))) elif isinstance(inputs.getattr(k),tuple): inputs.setattr(k,"% "+span(inputs.getattr(k),sep=",")) cmd = inputs.formateval(self.TEMPLATE) cmd = cmd.replace("[comment]",f"[position {self.position}:{self.userid}]") if not verbose: cmd=remove_comments(cmd) if printflag: print(cmd) return cmd def getallattributes(self)-
advanced method to get all attributes including class ones
Expand source code
def getallattributes(self): """ advanced method to get all attributes including class ones""" return {k: getattr(self, k) for k in dir(self) \ if (not k.startswith('_')) and (not isinstance(getattr(self, k),types.MethodType))} def header(self, verbose=True, verbosity=None, style=2)-
Generate a formatted header for the script file.
Parameters
verbosity (bool, optional): If specified, overrides the instance's
verbosesetting. Defaults to the instance'sverbose. style (int from 1 to 6, optional): ASCII style to frame the header (default=2)Returns
str- A formatted string representing the script's metadata and initialization details. Returns an empty string if verbosity is False.
The header includes: - Script version, license, and contact email. - User ID and the number of initialized definitions. - Current system user, hostname, and working directory. - Persistent filename and folder path. - Timestamp of the header generation.
Expand source code
def header(self, verbose=True, verbosity=None, style=2): """ Generate a formatted header for the script file. Parameters: verbosity (bool, optional): If specified, overrides the instance's `verbose` setting. Defaults to the instance's `verbose`. style (int from 1 to 6, optional): ASCII style to frame the header (default=2) Returns: str: A formatted string representing the script's metadata and initialization details. Returns an empty string if verbosity is False. The header includes: - Script version, license, and contact email. - User ID and the number of initialized definitions. - Current system user, hostname, and working directory. - Persistent filename and folder path. - Timestamp of the header generation. """ verbose = verbosity > 0 if verbosity is not None else (self.verbose if verbose is None else verbose) verbosity = 0 if not verbose else verbosity if not verbose: return "" # Prepare the header content lines = [ f"PIZZA.SCRIPT FILE v{script.version} | License: {script.license} | Email: {script.email}", "", f"<{str(self)}>", f"Initialized with {len(self.USER)} definitions | Verbosity: {verbosity}", f"Persistent file: \"{self.persistentfile}\" | Folder: \"{self.persistentfolder}\"", "", f"Generated on: {getpass.getuser()}@{socket.gethostname()}:{os.getcwd()}", f"{datetime.datetime.now().strftime('%A, %B %d, %Y at %H:%M:%S')}", ] # Use the shared method to format the header return frame_header(lines,style=style) def tmpwrite(self, verbose=False, style=1)-
Write the script to a temporary file and create optional persistent copies.
Parameters
verbose (bool, optional): Controls verbosity during script generation. Defaults to False.
The method: - Creates a temporary file for the script, with platform-specific behavior: - On Windows (
os.name == 'nt'), the file is not automatically deleted. - On other systems, the file is temporary and deleted upon closure. - Writes a header and the script content into the temporary file. - Optionally creates a persistent copy in theself.persistentfolderdirectory: -script.preview.<suffix>: A persistent copy of the temporary file. -script.preview.clean.<suffix>: A clean copy with comments and empty lines removed. - Handles cleanup and exceptions gracefully to avoid leaving orphaned files. - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with+,-, and|2. Double-line frame with╔,═, and║3. Rounded corners with.,',-, and|4. Thick outer frame with#,=, and#5. Box drawing characters with┌,─, and│6. Minimalist dotted frame with.,:, and.Default is1(basic box).Returns
TemporaryFile- The temporary file handle (non-Windows systems only).
None- On Windows, the file is closed and not returned.
Raises
Exception- If there is an error creating or writing to the temporary file.
Expand source code
def tmpwrite(self, verbose=False, style=1): """ Write the script to a temporary file and create optional persistent copies. Parameters: verbose (bool, optional): Controls verbosity during script generation. Defaults to False. The method: - Creates a temporary file for the script, with platform-specific behavior: - On Windows (`os.name == 'nt'`), the file is not automatically deleted. - On other systems, the file is temporary and deleted upon closure. - Writes a header and the script content into the temporary file. - Optionally creates a persistent copy in the `self.persistentfolder` directory: - `script.preview.<suffix>`: A persistent copy of the temporary file. - `script.preview.clean.<suffix>`: A clean copy with comments and empty lines removed. - Handles cleanup and exceptions gracefully to avoid leaving orphaned files. - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with `+`, `-`, and `|` 2. Double-line frame with `╔`, `═`, and `║` 3. Rounded corners with `.`, `'`, `-`, and `|` 4. Thick outer frame with `#`, `=`, and `#` 5. Box drawing characters with `┌`, `─`, and `│` 6. Minimalist dotted frame with `.`, `:`, and `.` Default is `1` (basic box). Returns: TemporaryFile: The temporary file handle (non-Windows systems only). None: On Windows, the file is closed and not returned. Raises: Exception: If there is an error creating or writing to the temporary file. """ try: # OS-specific temporary file behavior if os.name == 'nt': # Windows ftmp = tempfile.NamedTemporaryFile(mode="w+b", prefix="script_", suffix=".txt", delete=False) else: # Other platforms ftmp = tempfile.NamedTemporaryFile(mode="w+b", prefix="script_", suffix=".txt") # Generate header and content header = ( f"# TEMPORARY PIZZA.SCRIPT FILE\n" f"# {'-' * 40}\n" f"{self.header(verbosity=verbose, style=style)}" ) content = ( header + "\n# This is a temporary file (it will be deleted automatically)\n\n" + self.do(printflag=False, verbose=verbose) ) # Write content to the temporary file ftmp.write(BOM_UTF8 + content.encode('utf-8')) ftmp.seek(0) # Reset file pointer to the beginning except Exception as e: # Handle errors gracefully ftmp.close() os.remove(ftmp.name) # Clean up the temporary file raise Exception(f"Failed to write to or handle the temporary file: {e}") from None print("\nTemporary File Header:\n", header, "\n") print("A temporary file has been generated here:\n", ftmp.name) # Persistent copy creation if self.persistentfile: ftmpname = os.path.basename(ftmp.name) fcopyname = os.path.join(self.persistentfolder, f"script.preview.{ftmpname.rsplit('_', 1)[1]}") copyfile(ftmp.name, fcopyname) print("A persistent copy has been created here:\n", fcopyname) # Create a clean copy without empty lines or comments with open(ftmp.name, "r") as f: lines = f.readlines() bom_utf8_str = BOM_UTF8.decode("utf-8") clean_lines = [ line for line in lines if line.strip() and not line.lstrip().startswith("#") and not line.startswith(bom_utf8_str) ] fcleanname = os.path.join(self.persistentfolder, f"script.preview.clean.{ftmpname.rsplit('_', 1)[1]}") with open(fcleanname, "w") as f: f.writelines(clean_lines) print("A clean copy has been created here:\n", fcleanname) # Handle file closure for Windows if os.name == 'nt': ftmp.close() return None else: return ftmp def write(self, file, printflag=True, verbose=False, overwrite=False, style=2)-
Write the script to a file.
Parameters
- file (str): The file path where the script will be saved.
- printflag (bool): Flag to enable/disable printing of details.
- verbose (bool): Flag to enable/disable verbose mode.
- overwrite (bool): Whether to overwrite the file if it already exists.
- style (int, optional):
Defines the ASCII frame style for the header.
Valid values are integers from 1 to 6, corresponding to predefined styles:
1. Basic box with
+,-, and|2. Double-line frame with╔,═, and║3. Rounded corners with.,',-, and|4. Thick outer frame with#,=, and#5. Box drawing characters with┌,─, and│6. Minimalist dotted frame with.,:, and.Default is2(frame with rounded corners).
Returns
str- The full absolute path of the file written.
Raises
FileExistsError- If the file already exists and overwrite is False.
Expand source code
def write(self, file, printflag=True, verbose=False, overwrite=False, style=2): """ Write the script to a file. Parameters: - file (str): The file path where the script will be saved. - printflag (bool): Flag to enable/disable printing of details. - verbose (bool): Flag to enable/disable verbose mode. - overwrite (bool): Whether to overwrite the file if it already exists. - style (int, optional): Defines the ASCII frame style for the header. Valid values are integers from 1 to 6, corresponding to predefined styles: 1. Basic box with `+`, `-`, and `|` 2. Double-line frame with `╔`, `═`, and `║` 3. Rounded corners with `.`, `'`, `-`, and `|` 4. Thick outer frame with `#`, `=`, and `#` 5. Box drawing characters with `┌`, `─`, and `│` 6. Minimalist dotted frame with `.`, `:`, and `.` Default is `2` (frame with rounded corners). Returns: str: The full absolute path of the file written. Raises: FileExistsError: If the file already exists and overwrite is False. """ # Resolve full path full_path = os.path.abspath(file) if os.path.exists(full_path) and not overwrite: raise FileExistsError(f"The file '{full_path}' already exists. Use overwrite=True to overwrite it.") if os.path.exists(full_path) and overwrite and verbose: print(f"Warning: Overwriting the existing file '{full_path}'.") # Generate the script and write to the file cmd = self.do(printflag=printflag, verbose=verbose) with open(full_path, "w") as f: print(self.header(verbosity=verbose, style=style), "\n", file=f) print(cmd, file=f) # Return the full path of the written file return full_path
class scriptdata (sortdefinitions=False, **kwargs)-
class of script parameters Typical constructor: DEFINITIONS = scriptdata( var1 = value1, var2 = value2 ) See script, struct, param to get review all methods attached to it
constructor
Expand source code
class scriptdata(param): """ class of script parameters Typical constructor: DEFINITIONS = scriptdata( var1 = value1, var2 = value2 ) See script, struct, param to get review all methods attached to it """ _type = "SD" _fulltype = "script data" _ftype = "definition"Ancestors
- pizza.private.mstruct.param
- pizza.private.mstruct.struct