view src/core/i18n.py @ 2249:e572482f6cbd

core (tools/common/template): i18n support - babel has been added as a new dependencies, and should replace gettext in core in the future - added i18n support in template rendered - current locale is available as babel Locale in templates through "locale" variable - locales can be changed before rendering using setLocale - for now, all locales translations are loaded on init, and stay in cache. A more complex cache system may be needed in the future (e.g. keeping only most used and load others from files when needed).
author Goffi <goffi@goffi.org>
date Sun, 21 May 2017 15:59:47 +0200
parents 2daf7b4c6756
children 8b37a62336c3
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# SAT: a jabber client
# Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


from sat.core.log import getLogger
log = getLogger(__name__)

try:

    import gettext

    _ = gettext.translation('sat', 'i18n', fallback=True).ugettext
    _translators = {None: gettext.NullTranslations()}

    def languageSwitch(lang=None):
        if not lang in _translators:
            _translators[lang] = gettext.translation('sat', languages=[lang], fallback=True)
        _translators[lang].install(unicode=True)

except ImportError:

    log.warning("gettext support disabled")
    _ = lambda msg: msg # Libervia doesn't support gettext
    def languageSwitch(lang=None):
        pass


D_ = lambda msg: msg # used for deferred translations