1 /*
2  * CapitalizeStream.java
3  *
4  * Copyright (C) 2004-2005 Peter Graves
5  * $Id$
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20  *
21  * As a special exception, the copyright holders of this library give you
22  * permission to link this library with independent modules to produce an
23  * executable, regardless of the license terms of these independent
24  * modules, and to copy and distribute the resulting executable under
25  * terms of your choice, provided that you also meet, for each linked
26  * independent module, the terms and conditions of the license of that
27  * module.  An independent module is a module which is not derived from
28  * or based on this library.  If you modify this library, you may extend
29  * this exception to your version of the library, but you are not
30  * obligated to do so.  If you do not wish to do so, delete this
31  * exception statement from your version.
32  */
33 
34 package org.armedbear.lisp;
35 
36 public final class CapitalizeStream extends CaseFrobStream
37 {
38     private boolean inWord;
39 
CapitalizeStream(Stream target)40     public CapitalizeStream(Stream target)
41     {
42         super(target);
43     }
44 
45     @Override
_writeChar(char c)46     public void _writeChar(char c)
47     {
48         if (inWord) {
49             if (Character.isUpperCase(c)) {
50                 c = LispCharacter.toLowerCase(c);
51             } else if (!Character.isLowerCase(c) && !Character.isDigit(c)) {
52                 inWord = false;
53             }
54         } else {
55             // Not in a word.
56             if (Character.isUpperCase(c)) {
57                 inWord = true;
58             } else if (Character.isLowerCase(c)) {
59                 c = LispCharacter.toUpperCase(c);
60                 inWord = true;
61             } else if (Character.isDigit(c)) {
62                 inWord = true;
63             }
64         }
65         target._writeChar(c);
66     }
67 
68     @Override
_writeString(String s)69     public void _writeString(String s)
70     {
71         final int limit = s.length();
72         for (int i = 0; i < limit; i++)
73             _writeChar(s.charAt(i));
74     }
75 
76     @Override
_writeLine(String s)77     public void _writeLine(String s)
78     {
79         target._writeString(s);
80         target._writeChar('\n');
81     }
82 }
83