# ====================================================================
# Copyright (c) 2004-2005 Open Source Applications Foundation.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions: 
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software. 
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# DEALINGS IN THE SOFTWARE.
# ====================================================================
#

from PyLucene import \
     LetterTokenizer, LowerCaseFilter, StopAnalyzer, StopFilter

#
# An Analyzer extension
#

class StopAnalyzer2(object):

    def __init__(self, stopWords=None):

        if stopWords is None:
            self.stopWords = StopAnalyzer.ENGLISH_STOP_WORDS
        else:
            self.stopWords = stopWords

    def tokenStream(self, fieldName, reader):

        return StopFilter(LowerCaseFilter(LetterTokenizer(reader)),
                          self.stopWords)