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#2650: re.escape() no longer escapes the "_".

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This commit is contained in:
Ezio Melotti 2011-04-10 12:59:16 +03:00
parent 344d26c7a0
commit 88fdeb45ef
4 changed files with 15 additions and 8 deletions
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8
Lib/re.py
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@ -215,12 +215,14 @@ def template(pattern, flags=0):
return _compile(pattern, flags|T)
_alphanum_str = frozenset(
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890")
"_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890")
_alphanum_bytes = frozenset(
b"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890")
b"_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890")
def escape(pattern):
"Escape all non-alphanumeric characters in pattern."
"""
Escape all the characters in pattern except ASCII letters, numbers and '_'.
"""
if isinstance(pattern, str):
alphanum = _alphanum_str
s = list(pattern)