filters/spelling.py

   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 """An API to provide spell checking for use in checks or elsewhere."""
  23
  24 import sys
  25
  26 available = False
  27
  28 # Let us see what is available in our preferred order
  29 try:
  30     # Enchant
  31     from enchant import checker, DictNotFoundError
  32     available = True
  33     checkers = {}
  34     def check(text, lang):
  35         if not lang in checkers:
  36             try:
  37                 checkers[lang] = checker.SpellChecker(lang)
  38             except DictNotFoundError, e:
  39                 print >> sys.stderr, str(e)
  40                 checkers[lang] = None
  41
  42         if not checkers[lang]:
  43             return
  44         spellchecker = checkers[lang]
  45         spellchecker.set_text(text)
  46         for err in spellchecker:
  47             yield err.word, err.wordpos, err.suggest()
  48
  49 except ImportError:
  50     try:
  51         # jToolkit might be installed and might give access to aspell, for
  52         # example
  53         from jToolkit import spellcheck
  54         available = True
  55         check = spellcheck.check
  56     except ImportError:
  57
  58         def check(text, lang):
  59             return []
  60