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/ru/RussianLetterTokenizer.java

diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLetterTokenizer.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLetterTokenizer.java
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+++ b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLetterTokenizer.java
@@ -0,0 +1,132 @@
+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.
+ */
+
+import java.io.Reader;
+import org.apache.lucene.analysis.CharTokenizer;
+import org.apache.lucene.analysis.Tokenizer; // for javadocs
+import org.apache.lucene.analysis.LetterTokenizer; // for javadocs
+import org.apache.lucene.analysis.standard.StandardTokenizer; // for javadocs
+import org.apache.lucene.util.AttributeSource;
+import org.apache.lucene.util.Version;
+
+/**
+ * A RussianLetterTokenizer is a {@link Tokenizer} that extends {@link LetterTokenizer}
+ * by also allowing the basic Latin digits 0-9.
+ * <p>
+ * <a name="version"/>
+ * You must specify the required {@link Version} compatibility when creating
+ * {@link RussianLetterTokenizer}:
+ * <ul>
+ * <li>As of 3.1, {@link CharTokenizer} uses an int based API to normalize and
+ * detect token characters. See {@link CharTokenizer#isTokenChar(int)} and
+ * {@link CharTokenizer#normalize(int)} for details.</li>
+ * </ul>
+ * @deprecated Use {@link StandardTokenizer} instead, which has the same functionality.
+ * This filter will be removed in Lucene 5.0 
+ */
+@Deprecated
+public class RussianLetterTokenizer extends CharTokenizer
+{    
+    private static final int DIGIT_0 = '0';
+    private static final int DIGIT_9 = '9';
+    
+    /**
+     * Construct a new RussianLetterTokenizer. * @param matchVersion Lucene version
+     * to match See {@link <a href="#version">above</a>}
+     * 
+     * @param in
+     *          the input to split up into tokens
+     */
+    public RussianLetterTokenizer(Version matchVersion, Reader in) {
+      super(matchVersion, in);
+    }
+
+    /**
+     * Construct a new RussianLetterTokenizer using a given {@link AttributeSource}.
+     * 
+     * @param matchVersion
+     *          Lucene version to match See {@link <a href="#version">above</a>}
+     * @param source
+     *          the attribute source to use for this {@link Tokenizer}
+     * @param in
+     *          the input to split up into tokens
+     */
+    public RussianLetterTokenizer(Version matchVersion, AttributeSource source, Reader in) {
+      super(matchVersion, source, in);
+    }
+
+    /**
+     * Construct a new RussianLetterTokenizer using a given
+     * {@link org.apache.lucene.util.AttributeSource.AttributeFactory}. * @param
+     * matchVersion Lucene version to match See
+     * {@link <a href="#version">above</a>}
+     * 
+     * @param factory
+     *          the attribute factory to use for this {@link Tokenizer}
+     * @param in
+     *          the input to split up into tokens
+     */
+    public RussianLetterTokenizer(Version matchVersion, AttributeFactory factory, Reader in) {
+      super(matchVersion, factory, in);
+    }
+    
+    /**
+     * Construct a new RussianLetterTokenizer.
+     * 
+     * @deprecated use {@link #RussianLetterTokenizer(Version, Reader)} instead. This will
+     *             be removed in Lucene 4.0.
+     */
+    @Deprecated
+    public RussianLetterTokenizer(Reader in) {
+      super(in);
+    }
+
+    /**
+     * Construct a new RussianLetterTokenizer using a given {@link AttributeSource}.
+     * 
+     * @deprecated use {@link #RussianLetterTokenizer(Version, AttributeSource, Reader)}
+     *             instead. This will be removed in Lucene 4.0.
+     */
+    @Deprecated
+    public RussianLetterTokenizer(AttributeSource source, Reader in) {
+      super(source, in);
+    }
+
+    /**
+     * Construct a new RussianLetterTokenizer using a given
+     * {@link org.apache.lucene.util.AttributeSource.AttributeFactory}.
+     * 
+     * @deprecated use {@link #RussianLetterTokenizer(Version, AttributeSource.AttributeFactory, Reader)}
+     *             instead. This will be removed in Lucene 4.0.
+     */
+    @Deprecated
+    public RussianLetterTokenizer(AttributeFactory factory, Reader in) {
+      super(factory, in);
+    }
+    
+    
+    /**
+     * Collects only characters which satisfy
+     * {@link Character#isLetter(int)}.
+     */
+    @Override
+    protected boolean isTokenChar(int c) {
+        return Character.isLetter(c) || (c >= DIGIT_0 && c <= DIGIT_9);
+    }
+}