01: /*
02: * PerlTagger.java
03: *
04: * Copyright (C) 2000-2002 Peter Graves
05: * $Id: PerlTagger.java,v 1.1.1.1 2002/09/24 16:08:00 piso Exp $
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License
09: * 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;
28:
29: public final class PerlTagger extends Tagger {
30: // We trim before matching, so "sub" will appear without any preceding
31: // whitespace.
32: private static final RE subRE = new UncheckedRE(
33: "^sub\\s+([a-zA-Z0-9_]+(::[a-zA-Z0-9_]+)*)");
34:
35: public PerlTagger(SystemBuffer buffer) {
36: super (buffer);
37: }
38:
39: public void run() {
40: ArrayList tags = new ArrayList();
41: Line line = buffer.getFirstLine();
42: while (line != null) {
43: String s = line.trim();
44: if (s != null && s.startsWith("sub")) {
45: // Tag definitions but not declarations.
46: if (s.charAt(s.length() - 1) != ';') {
47: REMatch match = subRE.getMatch(s);
48: if (match != null) {
49: String token = s.substring(match
50: .getSubStartIndex(1), match
51: .getSubEndIndex(1));
52: tags.add(new PerlTag(token, line));
53: }
54: }
55: }
56: line = line.next();
57: }
58: buffer.setTags(tags);
59: }
60: }
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