i18n.py

   1 #!/usr/bin/python
   2 ###############################################################################
   3 #                                                                             #
   4 # pyPDNS - A PDNS administration tool, written in pure python.                #
   5 # Copyright (C) 2012 IPFire development team                                  #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 """
  23         The translation process of all strings is done in here.
  24 """
  25
  26 import  gettext
  27
  28 """
  29         A function that returnes the same string.
  30 """
  31 N_ = lambda x: x
  32
  33 def _(singular, plural=None, n=None):
  34         """
  35                 A function that returnes the translation of a string if available.
  36
  37                 The language is taken from the system environment.
  38         """
  39         if not plural is None:
  40                 assert n is not None
  41                 return gettext.dngettext("pyPDNS", singular, plural, n)
  42
  43         return gettext.dgettext("pyPDNS", singular)
  44
  45 def list(parts):
  46         """
  47                 Returns a comma-separated list for the given list of parts.
  48
  49                 The format is, e.g., "A, B and C", "A and B" or just "A" for lists
  50                 of size 1.
  51         """
  52         if len(parts) == 0: return ""
  53         if len(parts) == 1: return parts[0]
  54         return _("%(commas)s and %(last)s") % {
  55                 "commas": u", ".join(parts[:-1]),
  56                 "last": parts[len(parts) - 1],
  57         }