Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site-packages/glob2/fnmatch.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 """Filename matching with shell patterns.
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2
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3 fnmatch(FILENAME, PATTERN) matches according to the local convention.
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4 fnmatchcase(FILENAME, PATTERN) always takes case in account.
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5
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6 The functions operate by translating the pattern into a regular
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7 expression. They cache the compiled regular expressions for speed.
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8
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9 The function translate(PATTERN) returns a regular expression
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10 corresponding to PATTERN. (It does not compile it.)
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11 """
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12 import os
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13 import posixpath
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14 import re
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15 try:
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16 from functools import lru_cache
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17 except ImportError:
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18 from .compat import lru_cache
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19
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20 __all__ = ["filter", "fnmatch", "fnmatchcase", "translate"]
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21
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22 def fnmatch(name, pat):
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23 """Test whether FILENAME matches PATTERN.
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24
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25 Patterns are Unix shell style:
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26
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27 * matches everything
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28 ? matches any single character
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29 [seq] matches any character in seq
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30 [!seq] matches any char not in seq
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31
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32 An initial period in FILENAME is not special.
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33 Both FILENAME and PATTERN are first case-normalized
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34 if the operating system requires it.
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35 If you don't want this, use fnmatchcase(FILENAME, PATTERN).
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36 """
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37 name = os.path.normcase(name)
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38 pat = os.path.normcase(pat)
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39 return fnmatchcase(name, pat)
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40
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41 lru_cache(maxsize=256, typed=True)
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42 def _compile_pattern(pat):
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43 if isinstance(pat, bytes):
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44 pat_str = pat.decode('ISO-8859-1')
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45 res_str = translate(pat_str)
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46 res = res_str.encode('ISO-8859-1')
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47 else:
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48 res = translate(pat)
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49 return re.compile(res).match
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50
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51 def filter(names, pat):
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52 """Return the subset of the list NAMES that match PAT."""
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53 result = []
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54 pat = os.path.normcase(pat)
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55 match = _compile_pattern(pat)
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56 if os.path is posixpath:
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57 # normcase on posix is NOP. Optimize it away from the loop.
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58 for name in names:
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59 m = match(name)
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60 if m:
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61 result.append((name, m.groups()))
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62 else:
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63 for name in names:
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64 m = match(os.path.normcase(name))
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65 if m:
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66 result.append((name, m.groups()))
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67 return result
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68
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69 def fnmatchcase(name, pat):
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70 """Test whether FILENAME matches PATTERN, including case.
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71
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72 This is a version of fnmatch() which doesn't case-normalize
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73 its arguments.
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74 """
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75 match = _compile_pattern(pat)
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76 return match(name) is not None
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77
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78
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79 def translate(pat):
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80 """Translate a shell PATTERN to a regular expression.
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81
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82 There is no way to quote meta-characters.
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83 """
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84
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85 i, n = 0, len(pat)
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86 res = ''
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87 while i < n:
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88 c = pat[i]
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89 i = i+1
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90 if c == '*':
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91 res = res + '(.*)'
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92 elif c == '?':
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93 res = res + '(.)'
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94 elif c == '[':
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95 j = i
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96 if j < n and pat[j] == '!':
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97 j = j+1
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98 if j < n and pat[j] == ']':
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99 j = j+1
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100 while j < n and pat[j] != ']':
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101 j = j+1
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102 if j >= n:
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103 res = res + '\\['
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104 else:
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105 stuff = pat[i:j].replace('\\','\\\\')
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106 i = j+1
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107 if stuff[0] == '!':
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108 stuff = '^' + stuff[1:]
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109 elif stuff[0] == '^':
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110 stuff = '\\' + stuff
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111 res = '%s([%s])' % (res, stuff)
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112 else:
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113 res = res + re.escape(c)
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114 return res + '\Z(?ms)'