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/jEdit/tags/jedit-4-1-pre5/gnu/regexp/RETokenRange.java

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Java | 51 lines | 26 code | 7 blank | 18 comment | 5 complexity | 2d2f36e96d344da58048ddab3d73a208 MD5 | raw file
 1/*
 2 *  gnu/regexp/RETokenRange.java
 3 *  Copyright (C) 1998-2001 Wes Biggs
 4 *
 5 *  This library is free software; you can redistribute it and/or modify
 6 *  it under the terms of the GNU Lesser General Public License as published
 7 *  by the Free Software Foundation; either version 2.1 of the License, or
 8 *  (at your option) any later version.
 9 *
10 *  This library is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 *  GNU Lesser General Public License for more details.
14 *
15 *  You should have received a copy of the GNU Lesser General Public License
16 *  along with this program; if not, write to the Free Software
17 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20package gnu.regexp;
21
22final class RETokenRange extends REToken {
23  private char lo, hi;
24  private boolean insens;
25
26  RETokenRange(int subIndex, char lo, char hi, boolean ins) {
27    super(subIndex);
28    this.lo = (insens = ins) ? Character.toLowerCase(lo) : lo;
29    this.hi = ins ? Character.toLowerCase(hi) : hi;
30  }
31
32  int getMinimumLength() {
33    return 1;
34  }
35
36    boolean match(CharIndexed input, REMatch mymatch) {
37	char c = input.charAt(mymatch.index);
38	if (c == CharIndexed.OUT_OF_BOUNDS) return false;
39	if (insens) c = Character.toLowerCase(c);
40	if ((c >= lo) && (c <= hi)) {
41	    ++mymatch.index;
42	    return next(input, mymatch);
43	}
44	return false;
45    }
46    
47  void dump(StringBuffer os) {
48    os.append(lo).append('-').append(hi);
49  }
50}
51