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Commit Description:
Merge pull request #17 from nattee/master...
Commit Description:
Merge pull request #17 from nattee/master
upgrade to current working snapshot
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lib/assets/Lib/fnmatch.py
| 109 lines
| 3.2 KiB
| text/x-python
| PythonLexer
|
| r584 | """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 os | ||||
| import posixpath | ||||
| import re | ||||
| import functools | ||||
| __all__ = ["filter", "fnmatch", "fnmatchcase", "translate"] | ||||
| 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). | ||||
| """ | ||||
| name = os.path.normcase(name) | ||||
| pat = os.path.normcase(pat) | ||||
| return fnmatchcase(name, pat) | ||||
| @functools.lru_cache(maxsize=256, typed=True) | ||||
| def _compile_pattern(pat): | ||||
| if isinstance(pat, bytes): | ||||
| pat_str = str(pat, 'ISO-8859-1') | ||||
| res_str = translate(pat_str) | ||||
| res = bytes(res_str, 'ISO-8859-1') | ||||
| else: | ||||
| res = translate(pat) | ||||
| return re.compile(res).match | ||||
| def filter(names, pat): | ||||
| """Return the subset of the list NAMES that match PAT.""" | ||||
| result = [] | ||||
| pat = os.path.normcase(pat) | ||||
| match = _compile_pattern(pat) | ||||
| if os.path is posixpath: | ||||
| # normcase on posix is NOP. Optimize it away from the loop. | ||||
| for name in names: | ||||
| if match(name): | ||||
| result.append(name) | ||||
| else: | ||||
| for name in names: | ||||
| if match(os.path.normcase(name)): | ||||
| result.append(name) | ||||
| 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. | ||||
| """ | ||||
| match = _compile_pattern(pat) | ||||
| return 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, n = 0, len(pat) | ||||
| res = '' | ||||
| while i < n: | ||||
| c = pat[i] | ||||
| i = i+1 | ||||
| if c == '*': | ||||
| res = res + '.*' | ||||
| elif c == '?': | ||||
| res = res + '.' | ||||
| elif 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) | ||||
| else: | ||||
| res = res + re.escape(c) | ||||
| return res + '\Z(?ms)' | ||||