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111 lines
3.1 KiB
111 lines
3.1 KiB
/* WildCard Copyright (C) 1999 Jochen Hoenicke.
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*
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* This program 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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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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*/
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package jode.obfuscator.modules;
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import jode.obfuscator.*;
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///#def COLLECTIONS java.util
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import java.util.Collection;
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///#enddef
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public class WildCard implements IdentifierMatcher, OptionHandler {
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String wildcard;
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int firstStar;
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public WildCard() {
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}
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public WildCard(String wild) {
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wildcard = wild;
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firstStar = wildcard.indexOf('*');
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}
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public void setOption(String option, Collection values) {
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if (option.equals("value")) {
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if (values.size() != 1)
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throw new IllegalArgumentException
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("Wildcard supports only one value.");
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wildcard = (String) values.iterator().next();
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firstStar = wildcard.indexOf('*');
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} else
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throw new IllegalArgumentException("Invalid option `"+option+"'.");
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}
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public String getNextComponent(Identifier ident) {
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String prefix = ident.getFullName();
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if (prefix.length() > 0)
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prefix += ".";
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int lastDot = prefix.length();
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if (!wildcard.startsWith(prefix))
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return null;
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int nextDot = wildcard.indexOf('.', lastDot);
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if (nextDot > 0
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&& (nextDot <= firstStar || firstStar == -1))
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return wildcard.substring(lastDot, nextDot);
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else if (firstStar == -1)
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return wildcard.substring(lastDot);
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else
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return null;
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}
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public boolean matchesSub(Identifier ident, String subident) {
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String prefix = ident.getFullName();
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if (prefix.length() > 0)
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prefix += ".";
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if (subident != null)
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prefix += subident;
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if (firstStar == -1 || firstStar >= prefix.length())
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return wildcard.startsWith(prefix);
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return prefix.startsWith(wildcard.substring(0, firstStar));
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}
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public boolean matches(Identifier ident) {
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String test = ident.getFullName();
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if (firstStar == -1) {
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if (wildcard.equals(test)) {
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return true;
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}
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return false;
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}
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if (!test.startsWith(wildcard.substring(0, firstStar)))
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return false;
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test = test.substring(firstStar);
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int lastWild = firstStar;
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int nextWild;
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while ((nextWild = wildcard.indexOf('*', lastWild + 1)) != -1) {
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String pattern = wildcard.substring(lastWild+1, nextWild);
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while (!test.startsWith(pattern)) {
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if (test.length() == 0)
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return false;
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test = test.substring(1);
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}
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test = test.substring(nextWild - lastWild - 1);
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lastWild = nextWild;
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}
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return test.endsWith(wildcard.substring(lastWild+1));
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}
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public String toString() {
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return "Wildcard "+wildcard;
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}
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}
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