Hyphen


1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  /* $Id: Hyphen.java 426576 2006-07-28 15:44:37Z jeremias $ */
19   
20  package org.apache.fop.hyphenation;
21  
22  import java.io.Serializable  ;
23  
24  /**
25   * This class represents a hyphen. A 'full' hyphen is made of 3 parts:
26   * the pre-break text, post-break text and no-break. If no line-break
27   * is generated at this position, the no-break text is used, otherwise,
28   * pre-break and post-break are used. Typically, pre-break is equal to
29   * the hyphen character and the others are empty. However, this general
30   * scheme allows support for cases in some languages where words change
31   * spelling if they're split across lines, like german's 'backen' which
32   * hyphenates 'bak-ken'. BTW, this comes from TeX.
33   *
34   * @author Carlos Villegas <cav@uniscope.co.jp>
35   */
36  
37  public class Hyphen implements Serializable   {
38      public String   preBreak;
39      public String   noBreak;
40      public String   postBreak;
41  
42      Hyphen(String   pre, String   no, String   post) {
43          preBreak = pre;
44          noBreak = no;
45          postBreak = post;
46      }
47  
48      Hyphen(String   pre) {
49          preBreak = pre;
50          noBreak = null;
51          postBreak = null;
52      }
53  
54      public String   toString() {
55          if (noBreak == null 
56                  && postBreak == null 
57                  && preBreak != null
58                  && preBreak.equals("-")) {
59              return "-";
60                  }
61          StringBuffer   res = new StringBuffer  ("{");
62          res.append(preBreak);
63          res.append("}{");
64          res.append(postBreak);
65          res.append("}{");
66          res.append(noBreak);
67          res.append('}');
68          return res.toString();
69      }
70  
71  }
72
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