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Diffstat (limited to 'libjava/gnu/regexp/RETokenLookAhead.java')
-rw-r--r-- | libjava/gnu/regexp/RETokenLookAhead.java | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/libjava/gnu/regexp/RETokenLookAhead.java b/libjava/gnu/regexp/RETokenLookAhead.java deleted file mode 100644 index 74a9bfe..0000000 --- a/libjava/gnu/regexp/RETokenLookAhead.java +++ /dev/null @@ -1,68 +0,0 @@ -/* - * gnu/regexp/RETokenOneOf.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; - -/** - * @since gnu.regexp 1.1.3 - * @author Shashank Bapat - */ -final class RETokenLookAhead extends REToken -{ - REToken re; - boolean negative; - - RETokenLookAhead(REToken re, boolean negative) throws REException { - super(0); - this.re = re; - this.negative = negative; - } - - boolean match(CharIndexed input, REMatch mymatch) - { - REMatch trymatch = (REMatch)mymatch.clone(); - REMatch trymatch1 = (REMatch)mymatch.clone(); - REMatch newMatch = null; - if (re.match(input, trymatch)) { - if (negative) return false; - if (next(input, trymatch1)) - newMatch = trymatch1; - } - - if (newMatch != null) { - if (negative) return false; - //else - mymatch.assignFrom(newMatch); - return true; - } - else { // no match - if (negative) - return next(input, mymatch); - //else - return false; - } - } - - void dump(StringBuffer os) { - os.append("(?"); - os.append(negative ? '!' : '='); - re.dumpAll(os); - os.append(')'); - } -} - |