Mercurial > hgrepos > Python > libs > ConfigMix

annotate configmix/compat.py @ 602:a2fff0d93d83

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Split up fast_pathstr2path into internal implementation and a simple wrapper
author Franz Glasner <fzglas.hg@dom66.de>
date Tue, 11 Jan 2022 00:52:56 +0100
parents f454889e41fa
children
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1 # -*- coding: utf-8 -*-
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2 # :-
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3 # :Copyright: (c) 2015-2022, Franz Glasner. All rights reserved.
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4 # :License: BSD-3-Clause. See LICENSE.txt for details.
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5 # :-
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6 """Some minimal compatibility shim between Python2 and Python3
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7
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8 """
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9
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10 from __future__ import division, absolute_import, print_function
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11
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13 __all__ = ["PY2",
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14 "text_to_native_os_str",
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15 "native_os_str_to_text",
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16 "u",
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17 "u2fs",
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18 "uchr",
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19 "n",
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20 "str_and_u"]
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22
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23 import sys
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24 import os
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25 import locale
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27
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28 PY2 = sys.version_info[0] <= 2
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30
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31 if PY2:
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32
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33 _OS_ENCODING = locale.getpreferredencoding()
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34
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35 _FS_ENCODING = sys.getfilesystemencoding() or _OS_ENCODING
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36
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37
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38 def text_to_native_os_str(s, encoding=None):
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39 if isinstance(s, unicode): # noqa: F821
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40 return s.encode(encoding or _OS_ENCODING)
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41 else:
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42 return s
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44
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45 def native_os_str_to_text(s, encoding=None):
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46 return s.decode(encoding or _OS_ENCODING)
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47
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49 def u(s, encoding="utf-8"):
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50 if isinstance(s, unicode): # noqa: F821
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51 return s
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52 else:
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53 return s.decode(encoding)
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55
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56 def u2fs(s, force=False):
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57 """Convert a text (Unicode) string to the filesystem encoding.
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58
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59 .. note:: The filesystem encoding on Python 3 is a Unicode text
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60 string. The function is a noop when called on Python 3.
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61
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62 .. note:: If `s` is already a byte string be permissive and
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63 return `s` unchanged.
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64
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65 """
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66 if isinstance(s, str):
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67 return s
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68 if not force and os.name in ("nt", "ce"):
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69 # WinNT and CE have native Unicode support: nothing to convert
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70 return s
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71 return s.encode(_FS_ENCODING)
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72
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73 def uchr(n):
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74 return unichr(n) # noqa: F821
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76 def n(s, encoding="utf-8"):
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77 if isinstance(s, str):
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78 return s
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79 else:
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80 return s.encode(encoding)
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82 def str_and_u(v):
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83 if isinstance(v, unicode): # noqa: F821
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84 return v
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85 else:
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86 return u(str(v))
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88 else:
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89
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90 def text_to_native_os_str(s, encoding=None):
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91 return s
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92
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93
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94 def native_os_str_to_text(s, encoding=None):
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95 return s
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98 def u(s, encoding="utf-8"):
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99 if isinstance(s, str):
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100 return s
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101 else:
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102 return s.decode(encoding)
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103
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104
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105 def u2fs(s, force=False):
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106 """Convert a text (Unicode) string to the filesystem encoding.
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107
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108 .. note:: The filesystem encoding on Python 3 is a Unicode text
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109 string. The function is a noop when called on Python 3.
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110
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111 .. note:: If `s` is already a byte string be permissive and
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112 return `s` unchanged.
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113
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114 """
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115 assert isinstance(s, str)
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116 return s
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117
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118 def uchr(n):
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119 return chr(n)
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120
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121 def n(s, encoding="utf-8"):
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122 if isinstance(s, str):
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123 return s
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124 else:
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125 return s.decode(encoding)
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127 def str_and_u(v):
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128 """Convert the value in `v` of any type to a native string and then
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129 to text (Unicode)
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131 """
d7f6f2afcee2 Instead of using u(str(v)) use specialized functions for PY2 and PY3
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 432
diff changeset
132 return str(v)