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annotate libervia/backend/core/i18n.py @ 4107:bc7d45dedeb0

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backend: rename `SatRosterProtocol` to `LiberviaRosterProtocol`
author Goffi <goffi@goffi.org>
date Fri, 30 Jun 2023 15:11:05 +0200
parents 4b842c1fb686
children 0d7bb4df2343
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1 #!/usr/bin/env python3
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2
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3
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 from typing import Callable, cast
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22 from libervia.backend.core.log import getLogger
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24 log = getLogger(__name__)
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26 try:
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28 import gettext
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30 _ = gettext.translation("libervia_backend", "i18n", fallback=True).gettext
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31 _translators = {None: gettext.NullTranslations()}
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33 def language_switch(lang=None):
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34 if not lang in _translators:
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35 _translators[lang] = gettext.translation(
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36 "libervia_backendt", languages=[lang], fallback=True
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37 )
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38 _translators[lang].install()
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41 except ImportError:
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42
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43 log.warning("gettext support disabled")
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44 _ = cast(Callable[[str], str], lambda msg: msg) # Libervia doesn't support gettext
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45
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46 def language_switch(lang=None):
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47 pass
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50 D_ = cast(Callable[[str], str], lambda msg: msg) # used for deferred translations