83 lines
3.0 KiB
Python
83 lines
3.0 KiB
Python
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#
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# translatepo.py: translate strings from data in .po files
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#
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# Copyright (C) 2013-2014 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Author: David Shea <dshea@redhat.com>
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# This module is helpful for testing translated data. The input is the .po files
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# in the po directory, so no gettext compilation or LC_MESSAGES directories are
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# necessary.
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import os
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import locale
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import re
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try:
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import polib
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except ImportError:
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print("You need to install the python-polib package to read translations")
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raise
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class PODict(object):
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def __init__(self, filename):
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"""Create a new dictionary of translations from a po file."""
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self._dict = {}
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self._dict[None] = {}
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pofile = polib.pofile(filename)
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self.metadata = pofile.metadata
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# Rearrange the entries in the pofile to make it easier to look up contexts.
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# _dict will be layed out _dict[msgctxt][msgid] = (translated1, translated2, ...)
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# There may be multiple translations because of plurals
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for entry in pofile.translated_entries():
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if (entry.msgctxt is not None) and (entry.msgctxt not in self._dict):
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self._dict[entry.msgctxt] = {}
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# If this is a plural entry, add entries for both the singular and
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# plural forms so that either can be used for a lookup
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if entry.msgstr_plural:
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xlist = [entry.msgstr_plural[key] for key in entry.msgstr_plural.keys()]
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self._dict[entry.msgctxt][entry.msgid] = xlist
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self._dict[entry.msgctxt][entry.msgid_plural] = xlist
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else:
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self._dict[entry.msgctxt][entry.msgid] = (entry.msgstr,)
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def get(self, key, context=None):
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return self._dict[context][key]
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# Return a dictionary of PODict objects for each language in a po directory
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def translate_all(podir):
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# Reset the locale to C before parsing the po file because
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# polib has erroneous uses of lower()
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saved_locale = locale.setlocale(locale.LC_ALL, None)
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locale.setlocale(locale.LC_CTYPE, 'C')
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podicts = {}
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with open(os.path.join(podir, 'LINGUAS')) as linguas:
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for line in linguas.readlines():
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if re.match(r'^#', line):
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continue
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for lang in line.strip().split(" "):
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podicts[lang] = PODict(os.path.join(podir, lang + ".po"))
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locale.setlocale(locale.LC_CTYPE, saved_locale)
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return podicts
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