input.py 文件源码

def __init__(self, fileLoader, baseDir, varBase, sourceName):
        self.__pattern = re.compile(r"""
            \$<(?:
                (?P<escaped>\$)     |
                (?P<named>[<'][^'>]+)['>]>  |
                (?P<braced>[<'][^'>]+)['>]> |
                (?P<invalid>)
            )
            """, re.VERBOSE)
        self.__baseDir = baseDir
        self.__varBase = re.sub(r'[^a-zA-Z0-9_]', '_', varBase, flags=re.DOTALL)
        self.__fileLoader = fileLoader
        self.__sourceName = sourceName