Mercurial > p > roundup > code
comparison roundup/cgi/TranslationService.py @ 2556:297dedb7226e
TranslationService for Roundup templates
| author | Alexander Smishlajev <a1s@users.sourceforge.net> |
|---|---|
| date | Sun, 11 Jul 2004 14:17:17 +0000 |
| parents | |
| children | aa0316a1b2aa |
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| 2555:e8b2044d82a6 | 2556:297dedb7226e |
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| 1 # TranslationService for Roundup templates | |
| 2 # | |
| 3 # This module is free software, you may redistribute it | |
| 4 # and/or modify under the same terms as Python. | |
| 5 # | |
| 6 # This module provides National Language Support | |
| 7 # for Roundup templating - much like roundup.i18n | |
| 8 # module for Roundup command line interface. | |
| 9 # The only difference is that translator objects | |
| 10 # returned by get_translation() have one additional | |
| 11 # method which is used by TAL engines: | |
| 12 # | |
| 13 # translate(domain, msgid, mapping, context, target_language, default) | |
| 14 # | |
| 15 | |
| 16 __version__ = "$Revision: 1.1 $"[11:-2] | |
| 17 __date__ = "$Date: 2004-07-11 14:17:17 $"[7:-2] | |
| 18 | |
| 19 from roundup import i18n | |
| 20 from roundup.cgi.PageTemplates import Expressions, PathIterator, TALES | |
| 21 from roundup.cgi.TAL import TALInterpreter | |
| 22 | |
| 23 ### Translation classes | |
| 24 | |
| 25 class TranslationServiceMixin: | |
| 26 | |
| 27 OUTPUT_ENCODING = "utf-8" | |
| 28 | |
| 29 def translate(self, domain, msgid, mapping=None, | |
| 30 context=None, target_language=None, default=None | |
| 31 ): | |
| 32 _msg = self.gettext(msgid) | |
| 33 #print ("TRANSLATE", msgid, _msg, mapping, context) | |
| 34 _msg = TALInterpreter.interpolate(_msg, mapping) | |
| 35 return _msg | |
| 36 | |
| 37 def gettext(self, msgid): | |
| 38 return self.ugettext(msgid).encode(self.OUTPUT_ENCODING) | |
| 39 | |
| 40 def ngettext(self, singular, plural, number): | |
| 41 return self.ungettext(singular, plural, number).encode( | |
| 42 self.OUTPUT_ENCODING) | |
| 43 | |
| 44 class TranslationService(TranslationServiceMixin, i18n.RoundupTranslations): | |
| 45 pass | |
| 46 | |
| 47 class NullTranslationService(TranslationServiceMixin, | |
| 48 i18n.RoundupNullTranslations | |
| 49 ): | |
| 50 pass | |
| 51 | |
| 52 ### TAL patching | |
| 53 # | |
| 54 # Template Attribute Language (TAL) uses only global translation service, | |
| 55 # which is not thread-safe. We will use context variable 'i18n' | |
| 56 # to access request-dependent transalation service (with domain | |
| 57 # and target language set during initializations of the roundup | |
| 58 # client interface. | |
| 59 # | |
| 60 | |
| 61 class Context(TALES.Context): | |
| 62 | |
| 63 def __init__(self, compiler, contexts): | |
| 64 TALES.Context.__init__(self, compiler, contexts) | |
| 65 if not self.contexts.get('i18n', None): | |
| 66 # if the context contains no TranslationService, | |
| 67 # create default one | |
| 68 self.contexts['i18n'] = get_translation() | |
| 69 self.i18n = self.contexts['i18n'] | |
| 70 | |
| 71 def translate(self, domain, msgid, mapping=None, | |
| 72 context=None, target_language=None, default=None): | |
| 73 if context is None: | |
| 74 context = self.contexts.get('here') | |
| 75 return self.i18n.translate(domain, msgid, | |
| 76 mapping=mapping, context=context, default=default, | |
| 77 target_language=target_language) | |
| 78 | |
| 79 class Engine(TALES.Engine): | |
| 80 | |
| 81 def getContext(self, contexts=None, **kwcontexts): | |
| 82 if contexts is not None: | |
| 83 if kwcontexts: | |
| 84 kwcontexts.update(contexts) | |
| 85 else: | |
| 86 kwcontexts = contexts | |
| 87 return Context(self, kwcontexts) | |
| 88 | |
| 89 # patching TAL like this is a dirty hack, | |
| 90 # but i see no other way to specify different Context class | |
| 91 Expressions._engine = Engine(PathIterator.Iterator) | |
| 92 Expressions.installHandlers(Expressions._engine) | |
| 93 | |
| 94 ### main API function | |
| 95 | |
| 96 def get_translation(language=None, domain=i18n.DOMAIN, | |
| 97 translation_class=TranslationService, | |
| 98 null_translation_class=NullTranslationService | |
| 99 ): | |
| 100 """Return Translation object for given language and domain | |
| 101 | |
| 102 Arguments 'translation_class' and 'null_translation_class' | |
| 103 specify the classes that are instantiated for existing | |
| 104 and non-existing translations, respectively. | |
| 105 """ | |
| 106 return i18n.get_translation(language=language, domain=domain, | |
| 107 translation_class=translation_class, | |
| 108 null_translation_class=null_translation_class) | |
| 109 | |
| 110 # vim: set et sts=4 sw=4 : |