mirror of https://github.com/python/cpython
39 lines
841 B
Python
39 lines
841 B
Python
# Provide backward compatibility for module "regexp" using "regex".
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import regex
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from regex_syntax import *
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class Prog:
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def __init__(self, pat):
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save_syntax = regex.set_syntax(RE_SYNTAX_AWK)
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try:
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self.prog = regex.compile(pat)
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finally:
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xxx = regex.set_syntax(save_syntax)
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def match(self, *args):
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if len(args) == 2:
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str, offset = args
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elif len(args) == 1:
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str, offset = args[0], 0
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else:
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raise TypeError, 'wrong argument count'
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if self.prog.search(str, offset) < 0:
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return ()
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regs = self.prog.regs
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i = len(regs)
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while i > 0 and regs[i-1] == (-1, -1):
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i = i-1
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return regs[:i]
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def compile(pat):
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return Prog(pat)
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cache_pat = None
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cache_prog = None
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def match(pat, str):
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global cache_pat, cache_prog
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if pat <> cache_pat:
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cache_pat, cache_prog = pat, compile(pat)
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return cache_prog.match(str)
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