code_patcher.py

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#!/usr/bin/env python
 
 
 
""" This modules provides functions useful to patch code contained in a box
.. module:: converter
"""
 
import converter.xar_types as xar_types
 
 
def patch(script):
    """ Clean the code contained in script boxes
        For now, script boxes can contain Python or QiChat script
 
        :param box: the box that holds the code
        :returns: the patched code as a string
    """
    code = script.content
 
    # remove all unwanted characters at the beginning of the code
    code = code.lstrip(' \t\r\n')
    code = code.rstrip(' \t\r\n')
    code += '\n'
 
    if script.language == xar_types.ScriptLanguage.QICHAT:
        code = _patch_qichat_script(code)
    elif script.language == xar_types.ScriptLanguage.PYTHON:
        code = _patch_python_script(code)
 
    return code
 
 
def _patch_qichat_script(code):
    """ Apply modifications to old version qichat script
        to make it correspond to new behavior format files
    """
 
    # for now, nothing to do more than the lstrip() made upper
    return code
 
 
def _patch_python_script(code):
    """ Apply modifications to old version python script
        to make it correspond to new behavior format files
    """
 
    # for now, nothing to do more than the lstrip() made upper
    return code