author | Pulkit Goyal <pulkit@yandex-team.ru> |
Wed, 05 Jun 2019 22:44:38 +0300 | |
changeset 42444 | ae3f862cbb3d |
parent 40254 | dd83aafdb64a |
child 43076 | 2372284d9457 |
permissions | -rw-r--r-- |
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# i18n.py - internationalization support for mercurial |
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# |
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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from __future__ import absolute_import |
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import gettext as gettextmod |
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import locale |
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import os |
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import sys |
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from . import ( |
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encoding, |
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pycompat, |
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) |
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# modelled after templater.templatepath: |
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if getattr(sys, 'frozen', None) is not None: |
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module = pycompat.sysexecutable |
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else: |
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module = pycompat.fsencode(__file__) |
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_languages = None |
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if (pycompat.iswindows |
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and 'LANGUAGE' not in encoding.environ |
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and 'LC_ALL' not in encoding.environ |
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and 'LC_MESSAGES' not in encoding.environ |
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and 'LANG' not in encoding.environ): |
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# Try to detect UI language by "User Interface Language Management" API |
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# if no locale variables are set. Note that locale.getdefaultlocale() |
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# uses GetLocaleInfo(), which may be different from UI language. |
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# (See http://msdn.microsoft.com/en-us/library/dd374098(v=VS.85).aspx ) |
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try: |
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import ctypes |
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langid = ctypes.windll.kernel32.GetUserDefaultUILanguage() |
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_languages = [locale.windows_locale[langid]] |
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except (ImportError, AttributeError, KeyError): |
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# ctypes not found or unknown langid |
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pass |
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_ugettext = None |
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def setdatapath(datapath): |
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datapath = pycompat.fsdecode(datapath) |
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localedir = os.path.join(datapath, r'locale') |
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t = gettextmod.translation(r'hg', localedir, _languages, fallback=True) |
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global _ugettext |
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try: |
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_ugettext = t.ugettext |
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except AttributeError: |
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_ugettext = t.gettext |
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_msgcache = {} # encoding: {message: translation} |
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def gettext(message): |
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"""Translate message. |
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The message is looked up in the catalog to get a Unicode string, |
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which is encoded in the local encoding before being returned. |
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Important: message is restricted to characters in the encoding |
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given by sys.getdefaultencoding() which is most likely 'ascii'. |
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""" |
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# If message is None, t.ugettext will return u'None' as the |
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# translation whereas our callers expect us to return None. |
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if message is None or not _ugettext: |
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return message |
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cache = _msgcache.setdefault(encoding.encoding, {}) |
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if message not in cache: |
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if type(message) is pycompat.unicode: |
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# goofy unicode docstrings in test |
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paragraphs = message.split(u'\n\n') |
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else: |
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# should be ascii, but we have unicode docstrings in test, which |
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# are converted to utf-8 bytes on Python 3. |
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paragraphs = [p.decode("utf-8") for p in message.split('\n\n')] |
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# Be careful not to translate the empty string -- it holds the |
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# meta data of the .po file. |
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u = u'\n\n'.join([p and _ugettext(p) or u'' for p in paragraphs]) |
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try: |
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# encoding.tolocal cannot be used since it will first try to |
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# decode the Unicode string. Calling u.decode(enc) really |
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# means u.encode(sys.getdefaultencoding()).decode(enc). Since |
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# the Python encoding defaults to 'ascii', this fails if the |
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# translated string use non-ASCII characters. |
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encodingstr = pycompat.sysstr(encoding.encoding) |
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cache[message] = u.encode(encodingstr, "replace") |
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except LookupError: |
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# An unknown encoding results in a LookupError. |
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cache[message] = message |
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return cache[message] |
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|
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def _plain(): |
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if ('HGPLAIN' not in encoding.environ |
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and 'HGPLAINEXCEPT' not in encoding.environ): |
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return False |
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exceptions = encoding.environ.get('HGPLAINEXCEPT', '').strip().split(',') |
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return 'i18n' not in exceptions |
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|
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if _plain(): |
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_ = lambda message: message |
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106 |
else: |
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107 |
_ = gettext |