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fnmatch.pyc
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Python Compiled Bytecode
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2014-12-31
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126 lines
# Source Generated with Decompyle++
# File: in.pyc (Python 2.7)
'''Filename matching with shell patterns.
fnmatch(FILENAME, PATTERN) matches according to the local convention.
fnmatchcase(FILENAME, PATTERN) always takes case in account.
The functions operate by translating the pattern into a regular
expression. They cache the compiled regular expressions for speed.
The function translate(PATTERN) returns a regular expression
corresponding to PATTERN. (It does not compile it.)
'''
import re
__all__ = [
'filter',
'fnmatch',
'fnmatchcase',
'translate']
_cache = { }
_MAXCACHE = 100
def _purge():
'''Clear the pattern cache'''
_cache.clear()
def fnmatch(name, pat):
"""Test whether FILENAME matches PATTERN.
Patterns are Unix shell style:
* matches everything
? matches any single character
[seq] matches any character in seq
[!seq] matches any char not in seq
An initial period in FILENAME is not special.
Both FILENAME and PATTERN are first case-normalized
if the operating system requires it.
If you don't want this, use fnmatchcase(FILENAME, PATTERN).
"""
import os as os
name = os.path.normcase(name)
pat = os.path.normcase(pat)
return fnmatchcase(name, pat)
def filter(names, pat):
'''Return the subset of the list NAMES that match PAT'''
import os
import posixpath as posixpath
result = []
pat = os.path.normcase(pat)
if pat not 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:
for name in names:
if match(name):
result.append(name)
continue
for name in names:
if match(os.path.normcase(name)):
result.append(name)
continue
return result
def fnmatchcase(name, pat):
"""Test whether FILENAME matches PATTERN, including case.
This is a version of fnmatch() which doesn't case-normalize
its arguments.
"""
if pat not in _cache:
res = translate(pat)
if len(_cache) >= _MAXCACHE:
_cache.clear()
_cache[pat] = re.compile(res)
return _cache[pat].match(name) is not None
def translate(pat):
'''Translate a shell PATTERN to a regular expression.
There is no way to quote meta-characters.
'''
i = 0
n = len(pat)
res = ''
while i < n:
c = pat[i]
i = i + 1
if c == '*':
res = res + '.*'
continue
if c == '?':
res = res + '.'
continue
if c == '[':
j = i
if j < n and pat[j] == '!':
j = j + 1
if j < n and pat[j] == ']':
j = j + 1
while j < n and pat[j] != ']':
j = j + 1
if j >= n:
res = res + '\\['
else:
stuff = pat[i:j].replace('\\', '\\\\')
i = j + 1
if stuff[0] == '!':
stuff = '^' + stuff[1:]
elif stuff[0] == '^':
stuff = '\\' + stuff
res = '%s[%s]' % (res, stuff)
res = res + re.escape(c)
return res + '\\Z(?ms)'