mailman/languages.py

   1 # Copyright (C) 2007-2008 by the Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU General Public License
   5 # as published by the Free Software Foundation; either version 2
   6 # of the License, or (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  16 # USA.
  17
  18 """Language manager."""
  19
  20 from zope.interface import implements
  21 from mailman.interfaces import ILanguageManager
  22
  23
  24 \f
  25 class LanguageManager:
  26     implements(ILanguageManager)
  27
  28     def __init__(self):
  29         self._language_data = {}
  30         self._enabled = set()
  31
  32     def add_language(self, code, description, charset, enable=True):
  33         self._language_data[code] = (description, charset)
  34         if enable:
  35             self._enabled.add(code)
  36
  37     def enable_language(self, code):
  38         # As per the interface, let KeyError percolate up.
  39         self._language_data[code]
  40         self._enabled.add(code)
  41
  42     def get_description(self, code):
  43         return self._language_data[code][0]
  44
  45     def get_charset(self, code):
  46         return self._language_data[code][1]
  47
  48     @property
  49     def known_codes(self):
  50         return iter(self._language_data)
  51
  52     @property
  53     def enabled_codes(self):
  54         return iter(self._enabled)
  55
  56     @property
  57     def enabled_names(self):
  58         for code in self._enabled:
  59             description, charset = self._language_data[code]
  60             yield description