Mercurial > babel > old > mirror
annotate babel/messages/catalog.py @ 107:4b42e23644e5
`Message`, `read_po` and `write_po` now all handle user/auto comments correctly.
The `Generated-By` header value needed a missing `\n`.
The frontends now pass the value of `--copyright-holder` to the Catalog, and removed the `copyright_holder` arg for `write_po` left behind on [105].
Tests changed accordingly.
author | palgarvio |
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date | Thu, 14 Jun 2007 06:24:28 +0000 |
parents | 2a00e352c986 |
children | 8ea225f33f28 |
rev | line source |
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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 |
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14 """Data structures for message catalogs.""" |
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15 |
69 | 16 from datetime import datetime |
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17 import re |
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18 try: |
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19 set |
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20 except NameError: |
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21 from sets import Set as set |
69 | 22 import time |
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23 |
69 | 24 from babel import __version__ as VERSION |
66 | 25 from babel.core import Locale |
69 | 26 from babel.messages.plurals import PLURALS |
99 | 27 from babel.util import odict, LOCALTZ, UTC |
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28 |
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29 __all__ = ['Message', 'Catalog'] |
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30 __docformat__ = 'restructuredtext en' |
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31 |
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32 PYTHON_FORMAT = re.compile(r'\%(\([\w]+\))?[diouxXeEfFgGcrs]').search |
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33 |
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34 |
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35 class Message(object): |
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36 """Representation of a single message in a catalog.""" |
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37 |
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38 def __init__(self, id, string='', locations=(), flags=(), auto_comments=(), |
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39 user_comments=()): |
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40 """Create the message object. |
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41 |
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42 :param id: the message ID, or a ``(singular, plural)`` tuple for |
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43 pluralizable messages |
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44 :param string: the translated message string, or a |
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45 ``(singular, plural)`` tuple for pluralizable messages |
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46 :param locations: a sequence of ``(filenname, lineno)`` tuples |
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47 :param flags: a set or sequence of flags |
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48 :param comments: a sequence of translator comments for the message |
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49 """ |
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50 self.id = id |
70 | 51 if not string and self.pluralizable: |
52 string = (u'', u'') | |
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53 self.string = string |
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54 self.locations = list(locations) |
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55 self.flags = set(flags) |
69 | 56 if id and self.python_format: |
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57 self.flags.add('python-format') |
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58 else: |
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59 self.flags.discard('python-format') |
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60 self.auto_comments = list(auto_comments) |
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61 self.user_comments = list(user_comments) |
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62 |
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63 def __repr__(self): |
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64 return '<%s %r>' % (type(self).__name__, self.id) |
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65 |
69 | 66 def fuzzy(self): |
67 return 'fuzzy' in self.flags | |
68 fuzzy = property(fuzzy, doc="""\ | |
69 Whether the translation is fuzzy. | |
70 | |
71 >>> Message('foo').fuzzy | |
72 False | |
73 >>> Message('foo', 'foo', flags=['fuzzy']).fuzzy | |
74 True | |
75 | |
76 :type: `bool` | |
77 """) | |
78 | |
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79 def pluralizable(self): |
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80 return isinstance(self.id, (list, tuple)) |
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81 pluralizable = property(pluralizable, doc="""\ |
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82 Whether the message is plurizable. |
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83 |
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84 >>> Message('foo').pluralizable |
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85 False |
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86 >>> Message(('foo', 'bar')).pluralizable |
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87 True |
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88 |
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89 :type: `bool` |
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90 """) |
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91 |
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92 def python_format(self): |
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93 ids = self.id |
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94 if not isinstance(ids, (list, tuple)): |
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95 ids = [ids] |
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96 return bool(filter(None, [PYTHON_FORMAT(id) for id in ids])) |
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97 python_format = property(python_format, doc="""\ |
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98 Whether the message contains Python-style parameters. |
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99 |
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100 >>> Message('foo %(name)s bar').python_format |
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101 True |
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102 >>> Message(('foo %(name)s', 'foo %(name)s')).python_format |
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103 True |
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104 |
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105 :type: `bool` |
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106 """) |
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107 |
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108 |
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109 DEFAULT_HEADER = u"""\ |
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110 # Translations template for PROJECT. |
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111 # Copyright (C) YEAR COPYRIGHT HOLDER |
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112 # This file is distributed under the same license as the PROJECT project. |
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113 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR. |
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114 #""" |
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115 |
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116 class Catalog(object): |
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117 """Representation of a message catalog.""" |
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118 |
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119 def __init__(self, locale=None, domain=None, header_comment=DEFAULT_HEADER, |
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120 project=None, version=None, copyright_holder=None, |
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121 msgid_bugs_address=None, creation_date=None, |
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122 revision_date=None, last_translator=None, charset='utf-8'): |
66 | 123 """Initialize the catalog object. |
124 | |
125 :param locale: the locale identifier or `Locale` object, or `None` | |
126 if the catalog is not bound to a locale (which basically | |
127 means it's a template) | |
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128 :param domain: the message domain |
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129 :param header_comment: the header comment as string, or `None` for the |
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130 default header |
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131 :param project: the project's name |
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132 :param version: the project's version |
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133 :param copyright_holder: the copyright holder of the catalog |
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134 :param msgid_bugs_address: the email address or URL to submit bug |
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135 reports to |
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136 :param creation_date: the date the catalog was created |
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137 :param revision_date: the date the catalog was revised |
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138 :param last_translator: the name and email of the last translator |
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139 :param charset: the encoding to use in the output |
66 | 140 """ |
141 self.domain = domain #: the message domain | |
142 if locale: | |
143 locale = Locale.parse(locale) | |
144 self.locale = locale #: the locale or `None` | |
106
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145 self._header_comment = header_comment |
69 | 146 self._messages = odict() |
147 | |
148 self.project = project or 'PROJECT' #: the project name | |
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149 self.version = version or 'VERSION' #: the project version |
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150 self.copyright_holder = copyright_holder or 'ORGANIZATION' |
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151 self.msgid_bugs_address = msgid_bugs_address or 'EMAIL@ADDRESS' |
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152 self.last_translator = last_translator #: last translator name + email |
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153 self.charset = charset or 'utf-8' |
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154 |
69 | 155 if creation_date is None: |
99 | 156 creation_date = datetime.now(LOCALTZ) |
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157 elif isinstance(creation_date, datetime) and not creation_date.tzinfo: |
99 | 158 creation_date = creation_date.replace(tzinfo=LOCALTZ) |
69 | 159 self.creation_date = creation_date #: creation date of the template |
160 if revision_date is None: | |
99 | 161 revision_date = datetime.now(LOCALTZ) |
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162 elif isinstance(revision_date, datetime) and not revision_date.tzinfo: |
99 | 163 revision_date = revision_date.replace(tzinfo=LOCALTZ) |
69 | 164 self.revision_date = revision_date #: last revision date of the catalog |
165 | |
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166 def get_header_comment(self): |
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167 comment = self._header_comment |
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168 comment = comment.replace('PROJECT', self.project) \ |
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169 .replace('VERSION', self.version) \ |
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170 .replace('YEAR', self.revision_date.strftime('%Y')) \ |
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171 .replace('COPYRIGHT HOLDER', self.copyright_holder) |
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172 if self.locale: |
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173 comment = comment.replace('Translations template', |
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174 '%s translations' % self.locale.english_name) |
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175 return comment |
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176 def set_header_comment(self, string): |
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177 self._header_comment = string |
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178 header_comment = property(get_header_comment, set_header_comment, doc="""\ |
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179 The header comment for the catalog. |
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180 |
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181 >>> catalog = Catalog(project='Foobar', version='1.0', |
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182 ... copyright_holder='Foo Company') |
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183 >>> print catalog.header_comment |
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184 # Translations template for Foobar. |
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185 # Copyright (C) 2007 Foo Company |
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186 # This file is distributed under the same license as the Foobar project. |
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187 # FIRST AUTHOR <EMAIL@ADDRESS>, 2007. |
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188 # |
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189 |
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190 :type: `unicode` |
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191 """) |
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192 |
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193 def mime_headers(self): |
69 | 194 headers = [] |
195 headers.append(('Project-Id-Version', | |
196 '%s %s' % (self.project, self.version))) | |
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197 headers.append(('Report-Msgid-Bugs-To', self.msgid_bugs_address)) |
69 | 198 headers.append(('POT-Creation-Date', |
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199 self.creation_date.strftime('%Y-%m-%d %H:%M%z'))) |
69 | 200 if self.locale is None: |
201 headers.append(('PO-Revision-Date', 'YEAR-MO-DA HO:MI+ZONE')) | |
202 headers.append(('Last-Translator', 'FULL NAME <EMAIL@ADDRESS>')) | |
203 headers.append(('Language-Team', 'LANGUAGE <LL@li.org>')) | |
204 else: | |
205 headers.append(('PO-Revision-Date', | |
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206 self.revision_date.strftime('%Y-%m-%d %H:%M%z'))) |
69 | 207 headers.append(('Last-Translator', self.last_translator)) |
208 headers.append(('Language-Team', '%s <LL@li.org>' % self.locale)) | |
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209 headers.append(('Plural-Forms', self.plural_forms)) |
69 | 210 headers.append(('MIME-Version', '1.0')) |
70 | 211 headers.append(('Content-Type', |
212 'text/plain; charset=%s' % self.charset)) | |
69 | 213 headers.append(('Content-Transfer-Encoding', '8bit')) |
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214 headers.append(('Generated-By', 'Babel %s\n' % VERSION)) |
69 | 215 return headers |
106
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216 mime_headers = property(mime_headers, doc="""\ |
69 | 217 The MIME headers of the catalog, used for the special ``msgid ""`` entry. |
218 | |
219 The behavior of this property changes slightly depending on whether a locale | |
220 is set or not, the latter indicating that the catalog is actually a template | |
221 for actual translations. | |
222 | |
223 Here's an example of the output for such a catalog template: | |
224 | |
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225 >>> created = datetime(1990, 4, 1, 15, 30, tzinfo=UTC) |
69 | 226 >>> catalog = Catalog(project='Foobar', version='1.0', |
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227 ... creation_date=created) |
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228 >>> for name, value in catalog.mime_headers: |
69 | 229 ... print '%s: %s' % (name, value) |
230 Project-Id-Version: Foobar 1.0 | |
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231 Report-Msgid-Bugs-To: EMAIL@ADDRESS |
69 | 232 POT-Creation-Date: 1990-04-01 15:30+0000 |
233 PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE | |
234 Last-Translator: FULL NAME <EMAIL@ADDRESS> | |
235 Language-Team: LANGUAGE <LL@li.org> | |
236 MIME-Version: 1.0 | |
237 Content-Type: text/plain; charset=utf-8 | |
238 Content-Transfer-Encoding: 8bit | |
239 Generated-By: Babel ... | |
240 | |
241 And here's an example of the output when the locale is set: | |
242 | |
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243 >>> revised = datetime(1990, 8, 3, 12, 0, tzinfo=UTC) |
69 | 244 >>> catalog = Catalog(locale='de_DE', project='Foobar', version='1.0', |
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245 ... creation_date=created, revision_date=revised, |
69 | 246 ... last_translator='John Doe <jd@example.com>') |
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247 >>> for name, value in catalog.mime_headers: |
69 | 248 ... print '%s: %s' % (name, value) |
249 Project-Id-Version: Foobar 1.0 | |
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250 Report-Msgid-Bugs-To: EMAIL@ADDRESS |
69 | 251 POT-Creation-Date: 1990-04-01 15:30+0000 |
252 PO-Revision-Date: 1990-08-03 12:00+0000 | |
253 Last-Translator: John Doe <jd@example.com> | |
254 Language-Team: de_DE <LL@li.org> | |
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255 Plural-Forms: nplurals=2; plural=(n != 1) |
69 | 256 MIME-Version: 1.0 |
257 Content-Type: text/plain; charset=utf-8 | |
258 Content-Transfer-Encoding: 8bit | |
259 Generated-By: Babel ... | |
260 | |
261 :type: `list` | |
262 """) | |
263 | |
70 | 264 def num_plurals(self): |
265 num = 2 | |
266 if self.locale: | |
267 if str(self.locale) in PLURALS: | |
268 num = PLURALS[str(self.locale)][0] | |
269 elif self.locale.language in PLURALS: | |
270 num = PLURALS[self.locale.language][0] | |
271 return num | |
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272 num_plurals = property(num_plurals, doc="""\ |
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273 The number of plurals used by the locale. |
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274 |
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275 >>> Catalog(locale='en').num_plurals |
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276 2 |
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277 >>> Catalog(locale='cs_CZ').num_plurals |
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278 3 |
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279 |
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280 :type: `int` |
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281 """) |
70 | 282 |
69 | 283 def plural_forms(self): |
284 num, expr = ('INTEGER', 'EXPRESSION') | |
285 if self.locale: | |
286 if str(self.locale) in PLURALS: | |
287 num, expr = PLURALS[str(self.locale)] | |
288 elif self.locale.language in PLURALS: | |
289 num, expr = PLURALS[self.locale.language] | |
290 return 'nplurals=%s; plural=%s' % (num, expr) | |
291 plural_forms = property(plural_forms, doc="""\ | |
292 Return the plural forms declaration for the locale. | |
293 | |
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294 >>> Catalog(locale='en').plural_forms |
69 | 295 'nplurals=2; plural=(n != 1)' |
296 >>> Catalog(locale='pt_BR').plural_forms | |
297 'nplurals=2; plural=(n > 1)' | |
298 | |
299 :type: `str` | |
300 """) | |
301 | |
302 def __contains__(self, id): | |
303 """Return whether the catalog has a message with the specified ID.""" | |
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304 return self._key_for(id) in self._messages |
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305 |
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306 def __len__(self): |
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307 """The number of messages in the catalog. |
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308 |
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309 This does not include the special ``msgid ""`` entry. |
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310 """ |
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311 return len(self._messages) |
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312 |
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313 def __iter__(self): |
66 | 314 """Iterates through all the entries in the catalog, in the order they |
315 were added, yielding a `Message` object for every entry. | |
316 | |
317 :rtype: ``iterator`` | |
318 """ | |
69 | 319 buf = [] |
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320 for name, value in self.mime_headers: |
69 | 321 buf.append('%s: %s' % (name, value)) |
322 yield Message('', '\n'.join(buf), flags=set(['fuzzy'])) | |
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323 for key in self._messages: |
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324 yield self._messages[key] |
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325 |
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326 def __repr__(self): |
66 | 327 locale = '' |
328 if self.locale: | |
329 locale = ' %s' % self.locale | |
330 return '<%s %r%s>' % (type(self).__name__, self.domain, locale) | |
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331 |
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332 def __delitem__(self, id): |
66 | 333 """Delete the message with the specified ID.""" |
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334 key = self._key_for(id) |
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335 if key in self._messages: |
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336 del self._messages[key] |
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337 |
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338 def __getitem__(self, id): |
66 | 339 """Return the message with the specified ID. |
340 | |
341 :param id: the message ID | |
342 :return: the message with the specified ID, or `None` if no such message | |
343 is in the catalog | |
69 | 344 :rtype: `Message` |
66 | 345 """ |
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346 return self._messages.get(self._key_for(id)) |
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347 |
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348 def __setitem__(self, id, message): |
66 | 349 """Add or update the message with the specified ID. |
350 | |
351 >>> catalog = Catalog() | |
352 >>> catalog[u'foo'] = Message(u'foo') | |
353 >>> catalog[u'foo'] | |
354 <Message u'foo'> | |
355 | |
356 If a message with that ID is already in the catalog, it is updated | |
357 to include the locations and flags of the new message. | |
358 | |
359 >>> catalog = Catalog() | |
360 >>> catalog[u'foo'] = Message(u'foo', locations=[('main.py', 1)]) | |
361 >>> catalog[u'foo'].locations | |
362 [('main.py', 1)] | |
363 >>> catalog[u'foo'] = Message(u'foo', locations=[('utils.py', 5)]) | |
364 >>> catalog[u'foo'].locations | |
365 [('main.py', 1), ('utils.py', 5)] | |
366 | |
367 :param id: the message ID | |
368 :param message: the `Message` object | |
369 """ | |
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370 assert isinstance(message, Message), 'expected a Message object' |
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371 key = self._key_for(id) |
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372 current = self._messages.get(key) |
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373 if current: |
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374 if message.pluralizable and not current.pluralizable: |
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375 # The new message adds pluralization |
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376 current.id = message.id |
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377 current.string = message.string |
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378 current.locations.extend(message.locations) |
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379 current.auto_comments.extend(message.auto_comments) |
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380 current.user_comments.extend(message.user_comments) |
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381 current.flags |= message.flags |
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382 message = current |
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383 else: |
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384 if isinstance(id, (list, tuple)): |
70 | 385 assert isinstance(message.string, (list, tuple)) |
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386 self._messages[key] = message |
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387 |
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388 def add(self, id, string=None, locations=(), flags=(), auto_comments=(), |
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389 user_comments=()): |
66 | 390 """Add or update the message with the specified ID. |
391 | |
392 >>> catalog = Catalog() | |
393 >>> catalog.add(u'foo') | |
394 >>> catalog[u'foo'] | |
395 <Message u'foo'> | |
396 | |
397 This method simply constructs a `Message` object with the given | |
398 arguments and invokes `__setitem__` with that object. | |
399 | |
400 :param id: the message ID, or a ``(singular, plural)`` tuple for | |
401 pluralizable messages | |
402 :param string: the translated message string, or a | |
403 ``(singular, plural)`` tuple for pluralizable messages | |
404 :param locations: a sequence of ``(filenname, lineno)`` tuples | |
405 :param flags: a set or sequence of flags | |
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406 :param comments: a list of translator comments |
66 | 407 """ |
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408 self[id] = Message(id, string, list(locations), flags, auto_comments, |
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409 user_comments) |
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410 |
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411 def _key_for(self, id): |
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412 """The key for a message is just the singular ID even for pluralizable |
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413 messages. |
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414 """ |
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415 key = id |
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416 if isinstance(key, (list, tuple)): |
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417 key = id[0] |
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418 return key |