| package org.apache.lucene.analysis.standard; |
| |
| /* |
| * 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 org.apache.lucene.analysis.tokenattributes.CharTermAttribute; |
| |
| import java.io.Reader; |
| import java.io.IOException; |
| |
| /** |
| * Internal interface for supporting versioned grammars. |
| * @lucene.internal |
| */ |
| public interface StandardTokenizerInterface { |
| |
| /** This character denotes the end of file */ |
| public static final int YYEOF = -1; |
| |
| /** |
| * Copies the matched text into the CharTermAttribute |
| */ |
| public void getText(CharTermAttribute t); |
| |
| /** |
| * Returns the current position. |
| */ |
| public int yychar(); |
| |
| /** |
| * Resets the scanner to read from a new input stream. |
| * Does not close the old reader. |
| * |
| * All internal variables are reset, the old input stream |
| * <b>cannot</b> be reused (internal buffer is discarded and lost). |
| * Lexical state is set to <tt>ZZ_INITIAL</tt>. |
| * |
| * @param reader the new input stream |
| */ |
| public void yyreset(Reader reader); |
| |
| /** |
| * Returns the length of the matched text region. |
| */ |
| public int yylength(); |
| |
| /** |
| * Resumes scanning until the next regular expression is matched, |
| * the end of input is encountered or an I/O-Error occurs. |
| * |
| * @return the next token, {@link #YYEOF} on end of stream |
| * @exception IOException if any I/O-Error occurs |
| */ |
| public int getNextToken() throws IOException; |
| |
| /** |
| * Sets the scanner buffer size in chars |
| */ |
| public void setBufferSize(int numChars); |
| } |