Showing content from http://svn.python.org/projects/python/tags/r14beta2/Lib/regexp.py below:
# Provide backward compatibility for module "regexp" using "regex". import regex from regex_syntax import * class Prog: def __init__(self, pat): save_syntax = regex.set_syntax(RE_SYNTAX_AWK) try: self.prog = regex.compile(pat) finally: xxx = regex.set_syntax(save_syntax) def match(self, str, offset = 0): if self.prog.search(str, offset) < 0: return () regs = self.prog.regs i = len(regs) while i > 0 and regs[i-1] == (-1, -1): i = i-1 return regs[:i] def compile(pat): return Prog(pat) cache_pat = None cache_prog = None def match(pat, str): global cache_pat, cache_prog if pat <> cache_pat: cache_pat, cache_prog = pat, compile(pat) return cache_prog.match(str)
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