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/ru/RussianLightStemmer.java diff --git a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLightStemmer.java b/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLightStemmer.java deleted file mode 100644 index e58bf38..0000000 --- a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLightStemmer.java +++ /dev/null @@ -1,153 +0,0 @@ -package org.apache.lucene.analysis.ru; - -/** - * 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. - */ - -/* - * This algorithm is updated based on code located at: - * http://members.unine.ch/jacques.savoy/clef/ - * - * Full copyright for that code follows: - */ - -/* - * Copyright (c) 2005, Jacques Savoy - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. Redistributions in binary - * form must reproduce the above copyright notice, this list of conditions and - * the following disclaimer in the documentation and/or other materials - * provided with the distribution. Neither the name of the author nor the names - * of its contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -import static org.apache.lucene.analysis.util.StemmerUtil.*; - -/** - * Light Stemmer for Russian. - *

- * This stemmer implements the following algorithm: - * Indexing and Searching Strategies for the Russian Language. - * Ljiljana Dolamic and Jacques Savoy. - */ -public class RussianLightStemmer { - - public int stem(char s[], int len) { - len = removeCase(s, len); - return normalize(s, len); - } - - private int normalize(char s[], int len) { - if (len > 3) - switch(s[len-1]) { - case 'ь': - case 'и': return len - 1; - case 'н': if (s[len-2] == 'н') return len - 1; - } - return len; - } - - private int removeCase(char s[], int len) { - if (len > 6 && - (endsWith(s, len, "иями") || - endsWith(s, len, "оями"))) - return len - 4; - - if (len > 5 && - (endsWith(s, len, "иям") || - endsWith(s, len, "иях") || - endsWith(s, len, "оях") || - endsWith(s, len, "ями") || - endsWith(s, len, "оям") || - endsWith(s, len, "оьв") || - endsWith(s, len, "ами") || - endsWith(s, len, "его") || - endsWith(s, len, "ему") || - endsWith(s, len, "ери") || - endsWith(s, len, "ими") || - endsWith(s, len, "ого") || - endsWith(s, len, "ому") || - endsWith(s, len, "ыми") || - endsWith(s, len, "оев"))) - return len - 3; - - if (len > 4 && - (endsWith(s, len, "ая") || - endsWith(s, len, "яя") || - endsWith(s, len, "ях") || - endsWith(s, len, "юю") || - endsWith(s, len, "ах") || - endsWith(s, len, "ею") || - endsWith(s, len, "их") || - endsWith(s, len, "ия") || - endsWith(s, len, "ию") || - endsWith(s, len, "ьв") || - endsWith(s, len, "ою") || - endsWith(s, len, "ую") || - endsWith(s, len, "ям") || - endsWith(s, len, "ых") || - endsWith(s, len, "ея") || - endsWith(s, len, "ам") || - endsWith(s, len, "ем") || - endsWith(s, len, "ей") || - endsWith(s, len, "ём") || - endsWith(s, len, "ев") || - endsWith(s, len, "ий") || - endsWith(s, len, "им") || - endsWith(s, len, "ое") || - endsWith(s, len, "ой") || - endsWith(s, len, "ом") || - endsWith(s, len, "ов") || - endsWith(s, len, "ые") || - endsWith(s, len, "ый") || - endsWith(s, len, "ым") || - endsWith(s, len, "ми"))) - return len - 2; - - if (len > 3) - switch(s[len-1]) { - case 'а': - case 'е': - case 'и': - case 'о': - case 'у': - case 'й': - case 'ы': - case 'я': - case 'ь': return len - 1; - } - - return len; - } -}