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Java > Open Source Codes > org > armedbear > j > VerilogTagger


1 /*
2  * VerilogTagger.java
3  *
4  * Copyright (C) 2002 Peter Graves
5  * $Id: VerilogTagger.java,v 1.1.1.1 2002/09/24 16:07:55 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.j;
23
24 import gnu.regexp.RE;
25 import gnu.regexp.REMatch;
26 import gnu.regexp.UncheckedRE;
27 import java.util.ArrayList JavaDoc;
28
29 public final class VerilogTagger extends Tagger
30 {
31     // We trim before matching, so "module" or "primitive" will appear without
32
// any preceding whitespace.
33
private static final RE moduleRE =
34         new UncheckedRE("^module\\s+([a-zA-Z_][a-zA-Z0-9_$]*)");
35     private static final RE primitiveRE =
36         new UncheckedRE("^primitive\\s+([a-zA-Z_][a-zA-Z0-9_$]*)");
37
38     public VerilogTagger(SystemBuffer buffer)
39     {
40         super(buffer);
41     }
42
43     public void run()
44     {
45         ArrayList JavaDoc tags = new ArrayList JavaDoc();
46         Line line = buffer.getFirstLine();
47         while (line != null) {
48             String JavaDoc s = line.trim();
49             if (s != null) {
50                 REMatch match;
51                 if (s.startsWith("module"))
52                     match = moduleRE.getMatch(s);
53                 else if (s.startsWith("primitive"))
54                     match = primitiveRE.getMatch(s);
55                 else
56                     match = null;
57                 if (match != null) {
58                     String JavaDoc name = s.substring(match.getSubStartIndex(1),
59                         match.getSubEndIndex(1));
60                     tags.add(new LocalTag(name, line));
61                 }
62             }
63             line = line.next();
64         }
65         buffer.setTags(tags);
66     }
67 }
68
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