# vim:encoding=utf-8:fileencoding=utf-8
#
# odfrecode
#
# (c) 2007,2008 Guido Günther <agx@sigxcpu.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

class Recoder(object):
    """
    base class for all encoders
    @classvar dst_encoding: encoding of the destination "column"
    @classvar encoding: name of the encoding

    To write a new encoder simply add a dictionary

    >>>	character_table = { "national_encoding_1": "utf8_1",
	                     national_encoding_2": "utf8_2",
			  }
    	 
    If you don't want to use utf8 as dictionary values for the destination
    encoding specify dst_encoding.
    """
    dst_encoding = 'utf-8'
    encoding = None

    def recode(self, character):
        try:
            char = unicode(self.character_table[character], self.dst_encoding)
        except KeyError: # needs no remapping
            char = character
        return char