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


1 /*
2  * CapitalizeFirstStream.java
3  *
4  * Copyright (C) 2004 Peter Graves
5  * $Id: CapitalizeFirstStream.java,v 1.1 2004/06/08 22:52:10 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 CapitalizeFirstStream extends CaseFrobStream
25 {
26     boolean virgin = true;
27
28     public CapitalizeFirstStream(Stream target) throws ConditionThrowable
29     {
30         super(target);
31     }
32
33     public void _writeChar(char c) throws ConditionThrowable
34     {
35         if (virgin) {
36             c = Utilities.toUpperCase(c);
37             virgin = false;
38         } else
39             c = Utilities.toLowerCase(c);
40         target._writeChar(c);
41     }
42
43     public void _writeString(String JavaDoc s) throws ConditionThrowable
44     {
45         if (s.length() > 0) {
46             if (virgin) {
47                 target._writeChar(Utilities.toUpperCase(s.charAt(0)));
48                 virgin = false;
49                 target._writeString(s.substring(1).toLowerCase());
50             } else
51                 target._writeString(s.toLowerCase());
52         }
53     }
54
55     public void _writeLine(String JavaDoc s) throws ConditionThrowable
56     {
57         _writeString(s);
58         _writeChar('\n');
59     }
60 }
61
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