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/jEdit/tags/jedit-4-2-pre4/gnu/regexp/RETokenAny.java

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Java | 54 lines | 26 code | 8 blank | 20 comment | 8 complexity | e93fd4077010e4ce65d0c696c03fa103 MD5 | raw file
 1/*
 2 *  gnu/regexp/RETokenAny.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 RETokenAny extends REToken {
23  /** True if '.' can match a newline (RE_DOT_NEWLINE) */
24  private boolean newline; 
25
26  /** True if '.' can't match a null (RE_DOT_NOT_NULL) */
27  private boolean matchNull;    
28  
29  RETokenAny(int subIndex, boolean newline, boolean matchNull) { 
30    super(subIndex);
31    this.newline = newline;
32    this.matchNull = matchNull;
33  }
34
35  int getMinimumLength() {
36    return 1;
37  }
38
39    boolean match(CharIndexed input, REMatch mymatch) {
40    char ch = input.charAt(mymatch.index);
41    if ((ch == CharIndexed.OUT_OF_BOUNDS)
42	|| (!newline && (ch == '\n'))
43	|| (matchNull && (ch == 0))) {
44	return false;
45    }
46    ++mymatch.index;
47    return next(input, mymatch);
48  }
49
50  void dump(StringBuffer os) {
51    os.append('.');
52  }
53}
54