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Merged revisions 82730 via svnmerge from

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svn+ssh://pythondev@svn.python.org/python/branches/py3k

'merge' in the sense that this is the same fix by the same author.

........
  r82730 | r.david.murray | 2010-07-09 08:23:21 -0400 (Fri, 09 Jul 2010) | 4 lines

  7846: limit fnmatch pattern cache to _MAXCACHE=100 entries.

  Patch by Andrew Clegg.
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This commit is contained in:
R. David Murray 2010-07-09 13:16:00 +00:00
parent 0e6771fd30
commit abd4553fd4
3 changed files with 16 additions and 1 deletions
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5
Lib/fnmatch.py
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@ -15,6 +15,7 @@ import re
__all__ = ["filter", "fnmatch","fnmatchcase","translate"]
_cache = {}
_MAXCACHE = 100
def fnmatch(name, pat):
"""Test whether FILENAME matches PATTERN.
@ -44,6 +45,8 @@ def filter(names, pat):
pat=os.path.normcase(pat)
if not pat in _cache:
res = translate(pat)
if len(_cache) >= _MAXCACHE:
_cache.clear()
_cache[pat] = re.compile(res)
match=_cache[pat].match
if os.path is posixpath:
@ -66,6 +69,8 @@ def fnmatchcase(name, pat):
if not pat in _cache:
res = translate(pat)
if len(_cache) >= _MAXCACHE:
_cache.clear()
_cache[pat] = re.compile(res)
return _cache[pat].match(name) is not None