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plone3  3.1.7
unicode_quirks.py
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00001 # Copyright (c) 2005-2007
00002 # Authors: KSS Project Contributors (see docs/CREDITS.txt)
00003 #
00004 # This program is free software; you can redistribute it and/or modify
00005 # it under the terms of the GNU General Public License version 2 as published
00006 # by the Free Software Foundation.
00007 #
00008 # This program is distributed in the hope that it will be useful,
00009 # but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011 # GNU General Public License for more details.
00012 #
00013 # You should have received a copy of the GNU General Public License
00014 # along with this program; if not, write to the Free Software
00015 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
00016 # 02111-1307, USA.
00017 
00018 class KSSUnicodeError(RuntimeError):
00019     pass
00020 
00021 def force_unicode(value, encoding='ascii'):
00022     'Force value to be unicode - allow also value in a specific encoding (by default, ascii).'
00023     if isinstance(value, str):
00024         try:
00025             value = unicode(value, encoding)
00026         except UnicodeDecodeError, exc:
00027             raise KSSUnicodeError, 'Content must be unicode or ascii string, original exception: %s' % (exc, )
00028     else:
00029         assert isinstance(value, unicode)
00030     return value