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mirror of https://github.com/python/cpython.git synced 2024-12-01 11:15:56 +01:00
cpython/Lib/regexp.py
Guido van Rossum 7bc817d5ba * Mass change: get rid of all init() methods, in favor of __init__()
constructors.  There is no backward compatibility.  Not everything has
  been tested.
* aiff.{py,doc}: deleted in favor of aifc.py (which contains its docs as
  comments)
1993-12-17 15:25:27 +00:00

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841 B
Python

# 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, *args):
if len(args) == 2:
str, offset = args
elif len(args) == 1:
str, offset = args[0], 0
else:
raise TypeError, 'wrong argument count'
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)