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Java > Open Source Codes > org > armedbear > lisp > CapitalizeStream


1 /*
2  * CapitalizeStream.java
3  *
4  * Copyright (C) 2004 Peter Graves
5  * $Id: CapitalizeStream.java,v 1.1 2004/06/08 23:03:45 piso Exp $
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
22 package org.armedbear.lisp;
23
24 public final class CapitalizeStream extends CaseFrobStream
25 {
26     private boolean inWord;
27
28     public CapitalizeStream(Stream target) throws ConditionThrowable
29     {
30         super(target);
31     }
32
33     public void _writeChar(char c) throws ConditionThrowable
34     {
35         if (inWord) {
36             if (Character.isUpperCase(c)) {
37                 c = Utilities.toLowerCase(c);
38             } else if (!Character.isLowerCase(c) && !Character.isDigit(c)) {
39                 inWord = false;
40             }
41         } else {
42             // Not in a word.
43 if (Character.isUpperCase(c)) {
44                 inWord = true;
45             } else if (Character.isLowerCase(c)) {
46                 c = Utilities.toUpperCase(c);
47                 inWord = true;
48             } else if (Character.isDigit(c)) {
49                 inWord = true;
50             }
51         }
52         target._writeChar(c);
53     }
54
55     public void _writeString(String JavaDoc s) throws ConditionThrowable
56     {
57         final int limit = s.length();
58         for (int i = 0; i < limit; i++)
59             _writeChar(s.charAt(i));
60     }
61
62     public void _writeLine(String JavaDoc s) throws ConditionThrowable
63     {
64         target._writeString(s);
65         target._writeChar('\n');
66     }
67 }
68
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