4f9533c772
Imported GNU Classpath 0.90
* scripts/makemake.tcl: LocaleData.java moved to gnu/java/locale.
* sources.am: Regenerated.
* gcj/javaprims.h: Regenerated.
* Makefile.in: Regenerated.
* gcj/Makefile.in: Regenerated.
* include/Makefile.in: Regenerated.
* testsuite/Makefile.in: Regenerated.
* gnu/java/lang/VMInstrumentationImpl.java: New override.
* gnu/java/net/local/LocalSocketImpl.java: Likewise.
* gnu/classpath/jdwp/VMMethod.java: Likewise.
* gnu/classpath/jdwp/VMVirtualMachine.java: Update to latest
interface.
* java/lang/Thread.java: Add UncaughtExceptionHandler.
* java/lang/reflect/Method.java: Implements GenericDeclaration and
isSynthetic(),
* java/lang/reflect/Field.java: Likewise.
* java/lang/reflect/Constructor.java
* java/lang/Class.java: Implements Type, GenericDeclaration,
getSimpleName() and getEnclosing*() methods.
* java/lang/Class.h: Add new public methods.
* java/lang/Math.java: Add signum(), ulp() and log10().
* java/lang/natMath.cc (log10): New function.
* java/security/VMSecureRandom.java: New override.
* java/util/logging/Logger.java: Updated to latest classpath
version.
* java/util/logging/LogManager.java: New override.
From-SVN: r113887
118 lines
3.6 KiB
Java
118 lines
3.6 KiB
Java
/* gnu/regexp/RETokenLookBehind.java
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.regexp;
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/**
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* @author Ito Kazumitsu
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*/
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final class RETokenLookBehind extends REToken
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{
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REToken re;
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boolean negative;
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RETokenLookBehind(REToken re, boolean negative) throws REException {
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super(0);
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this.re = re;
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this.negative = negative;
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}
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int getMaximumLength() {
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return 0;
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}
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REMatch matchThis(CharIndexed input, REMatch mymatch)
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{
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int max = re.getMaximumLength();
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CharIndexed behind = input.lookBehind(mymatch.index, max);
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REMatch trymatch = (REMatch)mymatch.clone();
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REMatch trymatch1 = (REMatch)mymatch.clone();
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REMatch newMatch = null;
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int diff = behind.length() - input.length();
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int curIndex = trymatch.index + diff;
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trymatch.index = 0;
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trymatch.offset = 0;
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RETokenMatchHereOnly stopper = new RETokenMatchHereOnly(curIndex);
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REToken re1 = (REToken) re.clone();
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re1.chain(stopper);
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if (re1.match(behind, trymatch)) {
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if (negative) return null;
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for (int i = 0; i < trymatch.start.length; i++) {
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if (trymatch.start[i] != -1 && trymatch.end[i] != -1) {
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trymatch.start[i] -= diff;
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if (trymatch.start[i] < 0) trymatch.start[i] -= 1;
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trymatch.end[i] -= diff;
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if (trymatch.end[i] < 0) trymatch.end[i] -= 1;
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}
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}
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trymatch.index = mymatch.index;
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trymatch.offset = mymatch.offset;
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return trymatch;
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}
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else {
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if (negative) return mymatch;
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return null;
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}
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}
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void dump(StringBuffer os) {
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os.append("(?<");
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os.append(negative ? '!' : '=');
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re.dumpAll(os);
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os.append(')');
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}
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private static class RETokenMatchHereOnly extends REToken {
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int getMaximumLength() { return 0; }
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private int index;
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RETokenMatchHereOnly(int index) {
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super(0);
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this.index = index;
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}
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REMatch matchThis(CharIndexed input, REMatch mymatch) {
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return (index == mymatch.index ? mymatch : null);
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}
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void dump(StringBuffer os) {}
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}
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}
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