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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.lucene.analysis.compound.hyphenation;
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import java.io.Serializable;
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* This class represents a hyphen. A 'full' hyphen is made of 3 parts: the
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* pre-break text, post-break text and no-break. If no line-break is generated
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* at this position, the no-break text is used, otherwise, pre-break and
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* post-break are used. Typically, pre-break is equal to the hyphen character
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* and the others are empty. However, this general scheme allows support for
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* cases in some languages where words change spelling if they're split across
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* lines, like german's 'backen' which hyphenates 'bak-ken'. BTW, this comes
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* This class has been taken from the Apache FOP project (http://xmlgraphics.apache.org/fop/). They have been slightly modified.
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public class Hyphen implements Serializable {
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public String preBreak;
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public String noBreak;
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public String postBreak;
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Hyphen(String pre, String no, String post) {
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public String toString() {
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if (noBreak == null && postBreak == null && preBreak != null
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&& preBreak.equals("-")) {
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StringBuilder res = new StringBuilder("{");
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res.append(postBreak);
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return res.toString();