File: encodings.py

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'''
Task Coach - Your friendly task manager
Copyright (C) 2015 Task Coach developers <developers@taskcoach.org>

Task Coach 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 3 of the License, or
(at your option) any later version.

Task Coach 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, see <http://www.gnu.org/licenses/>.
'''

import codecs

def encalias(oldname, newname):
    old = codecs.lookup(oldname)
    new = codecs.CodecInfo(old.encode, old.decode, 
                           streamreader=old.streamreader,
                           streamwriter=old.streamwriter,
                           incrementalencoder=old.incrementalencoder,
                           incrementaldecoder=old.incrementaldecoder,
                           name=newname)
    def searcher(aname):
        if aname == newname:
            return new
        else:
            return None
    codecs.register(searcher)

encalias('mac_roman', 'western-(mac-os-roman)')