Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/glob2/fnmatch.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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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 re |
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14 try: |
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15 from functools import lru_cache |
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16 except ImportError: |
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17 from .compat import lru_cache |
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18 |
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19 __all__ = ["filter", "fnmatch", "fnmatchcase", "translate"] |
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20 |
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21 |
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22 def _norm_paths(path, norm_paths, sep): |
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23 if norm_paths is None: |
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24 path = re.sub(r'\/', sep or os.sep, path) # cached internally |
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25 elif norm_paths: |
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26 path = os.path.normcase(path) |
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27 return path |
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28 |
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29 |
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30 def fnmatch(name, pat, norm_paths=True, case_sensitive=True, sep=None): |
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31 """Test whether FILENAME matches PATTERN. |
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32 |
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33 Patterns are Unix shell style: |
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34 |
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35 * matches everything |
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36 ? matches any single character |
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37 [seq] matches any character in seq |
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38 [!seq] matches any char not in seq |
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39 |
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40 An initial period in FILENAME is not special. |
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41 Both FILENAME and PATTERN are first case-normalized |
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42 if the operating system requires it. |
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43 If you don't want this, use fnmatchcase(FILENAME, PATTERN). |
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44 |
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45 :param slashes: |
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46 :param norm_paths: |
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47 A tri-state boolean: |
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48 when true, invokes `os.path,.normcase()` on both paths, |
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49 when `None`, just equalize slashes/backslashes to `os.sep`, |
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50 when false, does not touch paths at all. |
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51 |
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52 Note that a side-effect of `normcase()` on *Windows* is that |
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53 it converts to lower-case all matches of `?glob()` functions. |
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54 :param case_sensitive: |
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55 defines the case-sensitiviness of regex doing the matches |
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56 :param sep: |
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57 in case only slahes replaced, what sep-char to substitute with; |
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58 if false, `os.sep` is used. |
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59 |
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60 Notice that by default, `normcase()` causes insensitive matching |
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61 on *Windows*, regardless of `case_insensitive` param. |
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62 Set ``norm_paths=None, case_sensitive=False`` to preserve |
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63 verbatim mathces. |
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64 """ |
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65 name, pat = [_norm_paths(p, norm_paths, sep) |
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66 for p in (name, pat)] |
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67 |
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68 return fnmatchcase(name, pat, case_sensitive=case_sensitive) |
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69 |
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70 |
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71 @lru_cache(maxsize=256, typed=True) |
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72 def _compile_pattern(pat, case_sensitive): |
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73 if isinstance(pat, bytes): |
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74 pat_str = pat.decode('ISO-8859-1') |
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75 res_str = translate(pat_str) |
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76 res = res_str.encode('ISO-8859-1') |
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77 else: |
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78 res = translate(pat) |
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79 flags = 0 if case_sensitive else re.IGNORECASE |
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80 return re.compile(res, flags).match |
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81 |
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82 |
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83 def filter(names, pat, norm_paths=True, case_sensitive=True, sep=None): |
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84 """Return the subset of the list NAMES that match PAT.""" |
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85 result = [] |
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86 pat = _norm_paths(pat, norm_paths, sep) |
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87 match = _compile_pattern(pat, case_sensitive) |
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88 for name in names: |
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89 m = match(_norm_paths(name, norm_paths, sep)) |
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90 if m: |
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91 result.append((name, |
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92 tuple(_norm_paths(p, norm_paths, sep) for p in m.groups()))) |
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93 return result |
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94 |
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95 |
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96 def fnmatchcase(name, pat, case_sensitive=True): |
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97 """Test whether FILENAME matches PATTERN, including case. |
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98 |
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99 This is a version of fnmatch() which doesn't case-normalize |
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100 its arguments. |
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101 """ |
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102 match = _compile_pattern(pat, case_sensitive) |
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103 return match(name) is not None |
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104 |
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105 |
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106 def translate(pat): |
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107 """Translate a shell PATTERN to a regular expression. |
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108 |
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109 There is no way to quote meta-characters. |
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110 """ |
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111 |
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112 i, n = 0, len(pat) |
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113 res = '' |
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114 while i < n: |
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115 c = pat[i] |
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116 i = i+1 |
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117 if c == '*': |
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118 res = res + '(.*)' |
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119 elif c == '?': |
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120 res = res + '(.)' |
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121 elif c == '[': |
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122 j = i |
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123 if j < n and pat[j] == '!': |
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124 j = j+1 |
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125 if j < n and pat[j] == ']': |
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126 j = j+1 |
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127 while j < n and pat[j] != ']': |
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128 j = j+1 |
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129 if j >= n: |
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130 res = res + '\\[' |
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131 else: |
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132 stuff = pat[i:j].replace('\\','\\\\') |
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133 i = j+1 |
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134 if stuff[0] == '!': |
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135 stuff = '^' + stuff[1:] |
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136 elif stuff[0] == '^': |
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137 stuff = '\\' + stuff |
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138 res = '%s([%s])' % (res, stuff) |
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139 else: |
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140 res = res + re.escape(c) |
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141 return '(?ms)' + res + '\Z' |