X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ar/ArabicLetterTokenizer.java?ds=inline diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ar/ArabicLetterTokenizer.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ar/ArabicLetterTokenizer.java new file mode 100644 index 0000000..c2f7c9e --- /dev/null +++ b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ar/ArabicLetterTokenizer.java @@ -0,0 +1,133 @@ +package org.apache.lucene.analysis.ar; +/** + * 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.Reader; + +import org.apache.lucene.analysis.CharTokenizer; +import org.apache.lucene.analysis.LetterTokenizer; +import org.apache.lucene.analysis.standard.StandardTokenizer; // javadoc @link +import org.apache.lucene.util.AttributeSource; +import org.apache.lucene.util.Version; + +/** + * Tokenizer that breaks text into runs of letters and diacritics. + *

+ * The problem with the standard Letter tokenizer is that it fails on diacritics. + * Handling similar to this is necessary for Indic Scripts, Hebrew, Thaana, etc. + *

+ *

+ * + * You must specify the required {@link Version} compatibility when creating + * {@link ArabicLetterTokenizer}: + *

+ * @deprecated (3.1) Use {@link StandardTokenizer} instead. + */ +@Deprecated +public class ArabicLetterTokenizer extends LetterTokenizer { + + + /** + * Construct a new ArabicLetterTokenizer. + * @param matchVersion Lucene version + * to match See {@link above} + * + * @param in + * the input to split up into tokens + */ + public ArabicLetterTokenizer(Version matchVersion, Reader in) { + super(matchVersion, in); + } + + /** + * Construct a new ArabicLetterTokenizer using a given {@link AttributeSource}. + * + * @param matchVersion + * Lucene version to match See {@link above} + * @param source + * the attribute source to use for this Tokenizer + * @param in + * the input to split up into tokens + */ + public ArabicLetterTokenizer(Version matchVersion, AttributeSource source, Reader in) { + super(matchVersion, source, in); + } + + /** + * Construct a new ArabicLetterTokenizer using a given + * {@link org.apache.lucene.util.AttributeSource.AttributeFactory}. * @param + * matchVersion Lucene version to match See + * {@link above} + * + * @param factory + * the attribute factory to use for this Tokenizer + * @param in + * the input to split up into tokens + */ + public ArabicLetterTokenizer(Version matchVersion, AttributeFactory factory, Reader in) { + super(matchVersion, factory, in); + } + + /** + * Construct a new ArabicLetterTokenizer. + * + * @deprecated use {@link #ArabicLetterTokenizer(Version, Reader)} instead. This will + * be removed in Lucene 4.0. + */ + @Deprecated + public ArabicLetterTokenizer(Reader in) { + super(in); + } + + /** + * Construct a new ArabicLetterTokenizer using a given {@link AttributeSource}. + * + * @deprecated use {@link #ArabicLetterTokenizer(Version, AttributeSource, Reader)} + * instead. This will be removed in Lucene 4.0. + */ + @Deprecated + public ArabicLetterTokenizer(AttributeSource source, Reader in) { + super(source, in); + } + + /** + * Construct a new ArabicLetterTokenizer using a given + * {@link org.apache.lucene.util.AttributeSource.AttributeFactory}. + * + * @deprecated use {@link #ArabicLetterTokenizer(Version, AttributeSource.AttributeFactory, Reader)} + * instead. This will be removed in Lucene 4.0. + */ + @Deprecated + public ArabicLetterTokenizer(AttributeFactory factory, Reader in) { + super(factory, in); + } + + + /** + * Allows for Letter category or NonspacingMark category + * @see org.apache.lucene.analysis.LetterTokenizer#isTokenChar(int) + */ + @Override + protected boolean isTokenChar(int c) { + return super.isTokenChar(c) || Character.getType(c) == Character.NON_SPACING_MARK; + } + +}