1995-01-27 02:41:45 +00:00
|
|
|
"""Filename matching with shell patterns.
|
1992-01-12 23:29:29 +00:00
|
|
|
|
1995-01-27 02:41:45 +00:00
|
|
|
fnmatch(FILENAME, PATTERN) matches according to the local convention.
|
|
|
|
fnmatchcase(FILENAME, PATTERN) always takes case in account.
|
1992-01-12 23:29:29 +00:00
|
|
|
|
1995-01-27 02:41:45 +00:00
|
|
|
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.)
|
|
|
|
"""
|
|
|
|
|
1997-10-22 21:00:49 +00:00
|
|
|
import re
|
|
|
|
|
1995-01-27 02:41:45 +00:00
|
|
|
_cache = {}
|
1991-01-01 18:11:14 +00:00
|
|
|
|
|
|
|
def fnmatch(name, pat):
|
1995-01-27 02:41:45 +00:00
|
|
|
"""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
|
1992-01-12 23:29:29 +00:00
|
|
|
name = os.path.normcase(name)
|
|
|
|
pat = os.path.normcase(pat)
|
1995-01-27 02:41:45 +00:00
|
|
|
return fnmatchcase(name, pat)
|
|
|
|
|
|
|
|
def fnmatchcase(name, pat):
|
|
|
|
"""Test wheter FILENAME matches PATTERN, including case.
|
|
|
|
|
|
|
|
This is a version of fnmatch() which doesn't case-normalize
|
|
|
|
its arguments.
|
|
|
|
"""
|
|
|
|
|
|
|
|
if not _cache.has_key(pat):
|
1992-01-12 23:29:29 +00:00
|
|
|
res = translate(pat)
|
1997-10-22 21:00:49 +00:00
|
|
|
_cache[pat] = re.compile(res)
|
|
|
|
return _cache[pat].match(name) is not None
|
1991-01-01 18:11:14 +00:00
|
|
|
|
1992-01-12 23:29:29 +00:00
|
|
|
def translate(pat):
|
1995-01-27 02:41:45 +00:00
|
|
|
"""Translate a shell PATTERN to a regular expression.
|
|
|
|
|
|
|
|
There is no way to quote meta-characters.
|
|
|
|
"""
|
|
|
|
|
1992-01-01 19:35:13 +00:00
|
|
|
i, n = 0, len(pat)
|
1992-01-12 23:29:29 +00:00
|
|
|
res = ''
|
1992-01-01 19:35:13 +00:00
|
|
|
while i < n:
|
1991-01-01 18:11:14 +00:00
|
|
|
c = pat[i]
|
1992-01-12 23:29:29 +00:00
|
|
|
i = i+1
|
1992-01-01 19:35:13 +00:00
|
|
|
if c == '*':
|
1992-01-12 23:29:29 +00:00
|
|
|
res = res + '.*'
|
1992-01-01 19:35:13 +00:00
|
|
|
elif c == '?':
|
1992-01-12 23:29:29 +00:00
|
|
|
res = res + '.'
|
1992-01-01 19:35:13 +00:00
|
|
|
elif c == '[':
|
1992-01-12 23:29:29 +00:00
|
|
|
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]
|
|
|
|
i = j+1
|
|
|
|
if stuff[0] == '!':
|
|
|
|
stuff = '[^' + stuff[1:] + ']'
|
|
|
|
elif stuff == '^'*len(stuff):
|
|
|
|
stuff = '\\^'
|
|
|
|
else:
|
|
|
|
while stuff[0] == '^':
|
|
|
|
stuff = stuff[1:] + stuff[0]
|
|
|
|
stuff = '[' + stuff + ']'
|
|
|
|
res = res + stuff
|
1991-01-01 18:11:14 +00:00
|
|
|
else:
|
1997-10-22 21:00:49 +00:00
|
|
|
res = res + re.escape(c)
|
|
|
|
return res + "$"
|