+++ /dev/null
-/**
- * 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.
- */
-
-package org.apache.lucene.analysis;
-
-import java.io.Reader;
-
-/**
- * CharStream adds {@link #correctOffset}
- * functionality over {@link Reader}. All Tokenizers accept a
- * CharStream instead of {@link Reader} as input, which enables
- * arbitrary character based filtering before tokenization.
- * The {@link #correctOffset} method fixed offsets to account for
- * removal or insertion of characters, so that the offsets
- * reported in the tokens match the character offsets of the
- * original Reader.
- */
-public abstract class CharStream extends Reader {
-
- /**
- * Called by CharFilter(s) and Tokenizer to correct token offset.
- *
- * @param currentOff offset as seen in the output
- * @return corrected offset based on the input
- */
- public abstract int correctOffset(int currentOff);
-}