ec730df5fc
2004-03-08 Anthony Green <green@redhat.com> * Makefile.am: Build property resource files into libgcj. * Makefile.in: Rebuilt. * java/util/regex/Matcher.java, java/util/regex/Pattern.java, java/util/regex/PatternSyntaxException.java, gnu/regexp/CharIndexed.java, gnu/regexp/CharIndexedCharArray.java, gnu/regexp/CharIndexedInputStream.java, gnu/regexp/CharIndexedReader.java, gnu/regexp/CharIndexedString.java, gnu/regexp/CharIndexedStringBuffer.java, gnu/regexp/RE.java, gnu/regexp/REException.java, gnu/regexp/REFilterInputStream.java, gnu/regexp/REFilterReader.java, gnu/regexp/REMatch.java, gnu/regexp/REMatchEnumeration.java, gnu/regexp/RESyntax.java, gnu/regexp/REToken.java, gnu/regexp/RETokenAny.java, gnu/regexp/RETokenBackRef.java, gnu/regexp/RETokenChar.java, gnu/regexp/RETokenEnd.java, gnu/regexp/RETokenEndSub.java, gnu/regexp/RETokenLookAhead.java, gnu/regexp/RETokenOneOf.java, gnu/regexp/RETokenPOSIX.java, gnu/regexp/RETokenRange.java, gnu/regexp/RETokenRepeated.java, gnu/regexp/RETokenStart.java, gnu/regexp/RETokenWordBoundary.java, gnu/regexp/UncheckedRE.java: Files merged from GNU Classpath. From-SVN: r79198
87 lines
2.7 KiB
Java
87 lines
2.7 KiB
Java
/* gnu/regexp/REToken.java
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Copyright (C) 1998-2001, 2004 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., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 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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import java.io.Serializable;
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abstract class REToken implements Serializable {
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protected REToken next = null;
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protected REToken uncle = null;
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protected int subIndex;
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protected REToken(int subIndex) {
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this.subIndex = subIndex;
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}
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int getMinimumLength() {
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return 0;
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}
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void setUncle(REToken anUncle) {
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uncle = anUncle;
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}
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/** Returns true if the match succeeded, false if it failed. */
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abstract boolean match(CharIndexed input, REMatch mymatch);
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/** Returns true if the rest of the tokens match, false if they fail. */
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protected boolean next(CharIndexed input, REMatch mymatch) {
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if (next == null) {
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if (uncle == null) {
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return true;
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} else {
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return uncle.match(input, mymatch);
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}
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} else {
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return next.match(input, mymatch);
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}
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}
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boolean chain(REToken token) {
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next = token;
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return true; // Token was accepted
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}
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abstract void dump(StringBuffer os);
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void dumpAll(StringBuffer os) {
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dump(os);
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if (next != null) next.dumpAll(os);
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}
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}
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