docutils/parsers/rst/languages/__init__.py

   1 # $Id$
   2 # Author: David Goodger <goodger@python.org>
   3 # Copyright: This module has been placed in the public domain.
   4
   5 # Internationalization details are documented in
   6 # <http://docutils.sf.net/docs/howto/i18n.html>.
   7
   8 """
   9 This package contains modules for language-dependent features of
  10 reStructuredText.
  11 """
  12
  13 __docformat__ = 'reStructuredText'
  14
  15 import sys
  16
  17 from docutils.utils import normalize_language_tag
  18 if sys.version_info < (2,5):
  19     from docutils._compat import __import__
  20
  21 _languages = {}
  22
  23 def get_language(language_code):
  24     for tag in normalize_language_tag(language_code):
  25         tag = tag.replace('-','_') # '-' not valid in module names
  26         if tag in _languages:
  27             return _languages[tag]
  28         try:
  29             module = __import__(tag, globals(), locals(), level=0)
  30         except ImportError:
  31             try:
  32                 module = __import__(tag, globals(), locals(), level=1)
  33             except ImportError:
  34                 continue
  35         _languages[tag] = module
  36         return module
  37     return None