/jEdit/tags/jedit-4-3-pre5/gnu/regexp/RETokenChar.java
Java | 72 lines | 39 code | 13 blank | 20 comment | 5 complexity | 8dcdb05e1f2db05ef4cac7e21534a971 MD5 | raw file
Possible License(s): BSD-3-Clause, AGPL-1.0, Apache-2.0, LGPL-2.0, LGPL-3.0, GPL-2.0, CC-BY-SA-3.0, LGPL-2.1, GPL-3.0, MPL-2.0-no-copyleft-exception, IPL-1.0
- /*
- * gnu/regexp/RETokenChar.java
- * Copyright (C) 1998-2001 Wes Biggs
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- package gnu.regexp;
- final class RETokenChar extends REToken {
- private char[] ch;
- private boolean insens;
- RETokenChar(int subIndex, char c, boolean ins) {
- super(subIndex);
- ch = new char [1];
- ch[0] = (insens = ins) ? Character.toLowerCase(c) : c;
- }
- int getMinimumLength() {
- return ch.length;
- }
-
- boolean match(CharIndexed input, REMatch mymatch) {
- int z = ch.length;
- char c;
- for (int i=0; i<z; i++) {
- c = input.charAt(mymatch.index+i);
- if (( (insens) ? Character.toLowerCase(c) : c ) != ch[i]) {
- return false;
- }
- }
- mymatch.index += z;
- return next(input, mymatch);
- }
- // Overrides REToken.chain() to optimize for strings
- boolean chain(REToken next) {
- if (next instanceof RETokenChar) {
- RETokenChar cnext = (RETokenChar) next;
- // assume for now that next can only be one character
- int newsize = ch.length + cnext.ch.length;
-
- char[] chTemp = new char [newsize];
-
- System.arraycopy(ch,0,chTemp,0,ch.length);
- System.arraycopy(cnext.ch,0,chTemp,ch.length,cnext.ch.length);
-
- ch = chTemp;
- return false;
- } else return super.chain(next);
- }
- void dump(StringBuffer os) {
- os.append(ch);
- }
- }