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- # DistUpgradeGettext.py - safe wrapper around gettext
- #
- # Copyright (c) 2008 Canonical
- #
- # Author: Michael Vogt <michael.vogt@ubuntu.com>
- #
- # This program is free software; you can redistribute it and/or
- # modify it under the terms of the GNU General Public License as
- # published by the Free Software Foundation; either version 2 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 General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- # USA
-
- import logging
- import gettext as mygettext
-
- def _verify(message, translated):
- """
- helper that verifies that the message and the translated
- message have the same number (and type) of % args
- """
- arguments_in_message = message.count("%") - message.count("\%")
- arguments_in_translation = translated.count("%") - translated.count("\%")
- return arguments_in_message == arguments_in_translation
-
- def gettext(message):
- """
- version of gettext that logs errors but does not crash on incorrect
- number of arguments
- """
- if message == "":
- return ""
- translated_msg = mygettext.gettext(message)
- if not _verify(message, translated_msg):
- logging.error("incorrect translation for message '%s' to '%s' (wrong number of arguments)" % (message, translated_msg))
- return message
- return translated_msg
-
- def ngettext(msgid1, msgid2, n):
- """
- version of ngettext that logs errors but does not crash on incorrect
- number of arguments
- """
- translated_msg = mygettext.ngettext(msgid1, msgid2, n)
- if not _verify(msgid1, translated_msg):
- logging.error("incorrect translation for ngettext message '%s' plural: '%s' to '%s' (wrong number of arguments)" % (msgid1, msgid2, translated_msg))
- # dumb fallback to not crash
- if n == 1:
- return msgid1
- return msgid2
- return translated_msg
-