Package translate :: Package lang :: Module factory

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# Source Code for Module translate.lang.factory

     1  #!/usr/bin/env python
     2  # -*- coding: utf-8 -*-
     3  #
     4  # Copyright 2007 Zuza Software Foundation
     5  #
     6  # This file is part of translate.
     7  #
     8  # translate is free software; you can redistribute it and/or modify
     9  # it under the terms of the GNU General Public License as published by
    10  # the Free Software Foundation; either version 2 of the License, or
    11  # (at your option) any later version.
    12  #
    13  # translate is distributed in the hope that it will be useful,
    14  # but WITHOUT ANY WARRANTY; without even the implied warranty of
    15  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16  # GNU General Public License for more details.
    17  #
    18  # You should have received a copy of the GNU General Public License
    19  # along with translate; if not, write to the Free Software
    20  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    21
    22  """This module provides a factory to instantiate language classes."""
    23
    24  from translate.lang import common
    25  from translate.lang import data
    26
    27  prefix = "code_"
    28
    29
    30 -def getlanguage(code):
    31      """This returns a language class.
    32
    33      @param code: The ISO 639 language code
    34      """
    35      if code:
    36          code = code.replace("-", "_").replace("@", "_").lower()
    37      try:
    38          try:
    39              if code is None:
    40                  raise ImportError("Can't determine language code")
    41              exec("from translate.lang import %s" % code)
    42              exec("langclass = %s.%s" % (code, code))
    43              return langclass(code)
    44          except SyntaxError, e:
    45              # Someone is probably trying to import a language of which the code
    46              # is a reserved word in python (like Icelandic (is) / Oriya (or))
    47              # The convention to handle these is to have it in a file like
    48              # code_is, for example.
    49              exec("from translate.lang import %s%s" % (prefix, code))
    50              exec("langclass = %s%s.%s%s" % (prefix, code, prefix, code))
    51              return langclass(code)
    52      except ImportError, e:
    53          if code and code.startswith(prefix):
    54              code = code[:len(prefix)]
    55          simplercode = data.simplercode(code)
    56          if simplercode:
    57              relatedlanguage = getlanguage(simplercode)
    58              if isinstance(relatedlanguage, common.Common):
    59                  relatedlanguage = relatedlanguage.__class__(code)
    60              return relatedlanguage
    61          else:
    62              return common.Common(code)
    63