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annotate babel/messages/plurals.py @ 507:b29ff192b610 stable-0.9.x

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Python 2.3 compatibility: backporting r456 and r457 to 0.9 branch (see #233)
author fschwarz
date Fri, 04 Mar 2011 13:14:03 +0000
parents 6e4905cc919e
children
rev   line source
51
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
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1 # -*- coding: utf-8 -*-
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2 #
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3 # Copyright (C) 2007 Edgewall Software
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4 # All rights reserved.
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5 #
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6 # This software is licensed as described in the file COPYING, which
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7 # you should have received as part of this distribution. The terms
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8 # are also available at http://babel.edgewall.org/wiki/License.
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9 #
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10 # This software consists of voluntary contributions made by many
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11 # individuals. For the exact contribution history, see the revision
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12 # history and logs, available at http://babel.edgewall.org/log/.
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13
56
27fba894d3ca Add actual data structures for handling message catalogs, so that more code can be reused here between the frontends.
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14 """Plural form definitions."""
27fba894d3ca Add actual data structures for handling message catalogs, so that more code can be reused here between the frontends.
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15
379
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16 from babel.core import default_locale, Locale
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b29ff192b610 Python 2.3 compatibility: backporting r456 and r457 to 0.9 branch (see #233)
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17 from babel.util import itemgetter
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18
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19
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20 LC_CTYPE = default_locale('LC_CTYPE')
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21
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22
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23 PLURALS = {
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24 # Afar
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25 # 'aa': (),
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26 # Abkhazian
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27 # 'ab': (),
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28 # Avestan
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29 # 'ae': (),
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30 # Afrikaans - From Pootle's PO's
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31 'af': (2, '(n != 1)'),
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32 # Akan
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33 # 'ak': (),
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34 # Amharic
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35 # 'am': (),
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36 # Aragonese
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37 # 'an': (),
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38 # Arabic - From Pootle's PO's
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39 'ar': (6, '(n==0 ? 0 : n==1 ? 1 : n==2 ? 2 : n>=3 && n<=10 ? 3 : n>=11 && n<=99 ? 4 : 5)'),
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40 # Assamese
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41 # 'as': (),
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42 # Avaric
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43 # 'av': (),
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44 # Aymara
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45 # 'ay': (),
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46 # Azerbaijani
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47 # 'az': (),
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48 # Bashkir
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49 # 'ba': (),
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50 # Belarusian
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51 # 'be': (),
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52 # Bulgarian - From Pootle's PO's
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53 'bg': (2, '(n != 1)'),
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54 # Bihari
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55 # 'bh': (),
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56 # Bislama
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57 # 'bi': (),
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58 # Bambara
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59 # 'bm': (),
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60 # Bengali - From Pootle's PO's
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61 'bn': (2, '(n != 1)'),
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62 # Tibetan - as discussed in private with Andrew West
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63 'bo': (1, '0'),
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64 # Breton
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65 # 'br': (),
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66 # Bosnian
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67 # 'bs': (),
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68 # Catalan - From Pootle's PO's
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69 'ca': (2, '(n != 1)'),
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70 # Chechen
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71 # 'ce': (),
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72 # Chamorro
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73 # 'ch': (),
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74 # Corsican
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75 # 'co': (),
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76 # Cree
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77 # 'cr': (),
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78 # Czech
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79 'cs': (3, '(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2)'),
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80 # Church Slavic
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81 # 'cu': (),
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82 # Chuvash
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83 'cv': (1, '0'),
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84 # Welsh
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85 'cy': (5, '(n==1 ? 1 : n==2 ? 2 : n==3 ? 3 : n==6 ? 4 : 0)'),
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86 # Danish
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87 'da': (2, '(n != 1)'),
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88 # German
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89 'de': (2, '(n != 1)'),
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90 # Divehi
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91 # 'dv': (),
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92 # Dzongkha
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93 'dz': (1, '0'),
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94 # Greek
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95 'el': (2, '(n != 1)'),
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96 # English
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97 'en': (2, '(n != 1)'),
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98 # Esperanto
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99 'eo': (2, '(n != 1)'),
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100 # Spanish
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101 'es': (2, '(n != 1)'),
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102 # Estonian
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103 'et': (2, '(n != 1)'),
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104 # Basque - From Pootle's PO's
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105 'eu': (2, '(n != 1)'),
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106 # Persian - From Pootle's PO's
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107 'fa': (1, '0'),
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108 # Finnish
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109 'fi': (2, '(n != 1)'),
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110 # French
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111 'fr': (2, '(n > 1)'),
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112 # Friulian - From Pootle's PO's
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113 'fur': (2, '(n > 1)'),
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114 # Irish
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115 'ga': (3, '(n==1 ? 0 : n==2 ? 1 : 2)'),
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116 # Galician - From Pootle's PO's
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117 'gl': (2, '(n != 1)'),
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118 # Hausa - From Pootle's PO's
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119 'ha': (2, '(n != 1)'),
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120 # Hebrew
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121 'he': (2, '(n != 1)'),
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122 # Hindi - From Pootle's PO's
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123 'hi': (2, '(n != 1)'),
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124 # Croatian
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125 'hr': (3, '(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2)'),
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126 # Hungarian
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127 'hu': (1, '0'),
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128 # Armenian - From Pootle's PO's
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129 'hy': (1, '0'),
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130 # Icelandic - From Pootle's PO's
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131 'is': (2, '(n != 1)'),
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132 # Italian
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133 'it': (2, '(n != 1)'),
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134 # Japanese
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135 'ja': (1, '0'),
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136 # Georgian - From Pootle's PO's
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137 'ka': (1, '0'),
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138 # Kongo - From Pootle's PO's
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139 'kg': (2, '(n != 1)'),
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140 # Khmer - From Pootle's PO's
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141 'km': (1, '0'),
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142 # Korean
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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143 'ko': (1, '0'),
300
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parents: 56
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144 # Kurdish - From Pootle's PO's
51
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
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parents:
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145 'ku': (2, '(n != 1)'),
318
e7e6eb212628 Ported [335:338], [345], and [351] to 0.9.x stable branch.
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parents: 300
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146 # Lao - Another member of the Tai language family, like Thai.
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parents: 300
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147 'lo': (1, '0'),
51
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
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parents:
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148 # Lithuanian
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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149 'lt': (3, '(n%10==1 && n%100!=11 ? 0 : n%10>=2 && (n%100<10 || n%100>=20) ? 1 : 2)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
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parents:
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150 # Latvian
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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151 'lv': (3, '(n%10==1 && n%100!=11 ? 0 : n != 0 ? 1 : 2)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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152 # Maltese - From Pootle's PO's
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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153 'mt': (4, '(n==1 ? 0 : n==0 || ( n%100>1 && n%100<11) ? 1 : (n%100>10 && n%100<20 ) ? 2 : 3)'),
300
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parents: 56
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154 # Norwegian Bokmål
51
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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155 'nb': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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156 # Dutch
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
157 'nl': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
158 # Norwegian Nynorsk
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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159 'nn': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
160 # Norwegian
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
161 'no': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
162 # Punjabi - From Pootle's PO's
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
163 'pa': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
164 # Polish
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
165 'pl': (3, '(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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166 # Portuguese
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
167 'pt': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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168 # Brazilian
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
169 'pt_BR': (2, '(n > 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
170 # Romanian - From Pootle's PO's
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
171 'ro': (3, '(n==1 ? 0 : (n==0 || (n%100 > 0 && n%100 < 20)) ? 1 : 2)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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172 # Russian
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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173 'ru': (3, '(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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174 # Slovak
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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175 'sk': (3, '(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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176 # Slovenian
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
177 'sl': (4, '(n%100==1 ? 0 : n%100==2 ? 1 : n%100==3 || n%100==4 ? 2 : 3)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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178 # Serbian - From Pootle's PO's
490
6e4905cc919e Merged revisions 540 via svnmerge from
jruigrok
parents: 379
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179 'sr': (3, '(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2)'),
300
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parents: 56
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180 # Southern Sotho - From Pootle's PO's
51
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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181 'st': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
182 # Swedish
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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183 'sv': (2, '(n != 1)'),
300
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parents: 56
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184 # Thai
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parents: 56
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185 'th': (1, '0'),
51
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
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parents:
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186 # Turkish
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
187 'tr': (1, '0'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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188 # Ukrainian
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
189 'uk': (3, '(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
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190 # Venda - From Pootle's PO's
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
191 've': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
192 # Vietnamese - From Pootle's PO's
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
193 'vi': (1, '0'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
194 # Xhosa - From Pootle's PO's
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
195 'xh': (2, '(n != 1)'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
196 # Chinese - From Pootle's PO's
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
197 'zh_CN': (1, '0'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
198 'zh_HK': (1, '0'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
palgarvio
parents:
diff changeset
199 'zh_TW': (1, '0'),
7f61453c1bea Fixed a bug regarding plural msgid's handling when writing the `.pot` file.
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parents:
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200 }
379
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201
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202
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203 DEFAULT_PLURAL = (2, '(n != 1)')
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204
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205
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206 class _PluralTuple(tuple):
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207 """A tuple with plural information."""
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208
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209 __slots__ = ()
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210 num_plurals = property(itemgetter(0), doc="""
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211 The number of plurals used by the locale.""")
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212 plural_expr = property(itemgetter(1), doc="""
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213 The plural expression used by the locale.""")
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214 plural_forms = property(lambda x: 'npurals=%s; plural=%s' % x, doc="""
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parents: 346
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215 The plural expression used by the catalog or locale.""")
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216
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217 def __str__(self):
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218 return self.plural_forms
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219
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220
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221 def get_plural(locale=LC_CTYPE):
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222 """A tuple with the information catalogs need to perform proper
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223 pluralization. The first item of the tuple is the number of plural
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224 forms, the second the plural expression.
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225
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226 >>> get_plural(locale='en')
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227 (2, '(n != 1)')
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228 >>> get_plural(locale='ga')
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229 (3, '(n==1 ? 0 : n==2 ? 1 : 2)')
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230
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231 The object returned is a special tuple with additional members:
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232
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233 >>> tup = get_plural("ja")
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234 >>> tup.num_plurals
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235 1
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236 >>> tup.plural_expr
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237 '0'
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238 >>> tup.plural_forms
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parents: 346
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239 'npurals=1; plural=0'
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240
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241 Converting the tuple into a string prints the plural forms for a
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242 gettext catalog:
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243
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244 >>> str(tup)
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245 'npurals=1; plural=0'
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246 """
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247 locale = Locale.parse(locale)
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248 try:
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249 tup = PLURALS[str(locale)]
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parents: 346
diff changeset
250 except KeyError:
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251 try:
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252 tup = PLURALS[locale.language]
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253 except KeyError:
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254 tup = DEFAULT_PLURAL
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parents: 346
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255 return _PluralTuple(tup)
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