X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/en/KStemFilter.java diff --git a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/en/KStemFilter.java b/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/en/KStemFilter.java deleted file mode 100644 index 6e88ab9..0000000 --- a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/en/KStemFilter.java +++ /dev/null @@ -1,63 +0,0 @@ -package org.apache.lucene.analysis.en; - -/** - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -import java.io.IOException; - -import org.apache.lucene.analysis.TokenFilter; -import org.apache.lucene.analysis.TokenStream; -import org.apache.lucene.analysis.tokenattributes.CharTermAttribute; -import org.apache.lucene.analysis.tokenattributes.KeywordAttribute; - -/** A high-performance kstem filter for english. - *

- * See - * "Viewing Morphology as an Inference Process" - * (Krovetz, R., Proceedings of the Sixteenth Annual International ACM SIGIR - * Conference on Research and Development in Information Retrieval, 191-203, 1993). - *

- * All terms must already be lowercased for this filter to work correctly. - */ - -public final class KStemFilter extends TokenFilter { - private final KStemmer stemmer = new KStemmer(); - private final CharTermAttribute termAttribute = addAttribute(CharTermAttribute.class); - private final KeywordAttribute keywordAtt = addAttribute(KeywordAttribute.class); - - public KStemFilter(TokenStream in) { - super(in); - } - - /** Returns the next, stemmed, input Token. - * @return The stemed form of a token. - * @throws IOException - */ - @Override - public boolean incrementToken() throws IOException { - if (!input.incrementToken()) - return false; - - char[] term = termAttribute.buffer(); - int len = termAttribute.length(); - if ((!keywordAtt.isKeyword()) && stemmer.stem(term, len)) { - termAttribute.setEmpty().append(stemmer.asCharSequence()); - } - - return true; - } -}