pylucene 3.5.0-3

[pylucene.git] / 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 (file)
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.
- * <p>
- * This stemmer implements the following algorithm:
- * <i>Indexing and Searching Strategies for the Russian Language.</i>
- * 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;
-  }
-}