// $Header: /home/cvs/jakarta-jmeter/src/htmlparser/org/htmlparser/scanners/BulletScanner.java,v 1.3 2005/07/12 20:50:30 mstover1 Exp $
/*
* ====================================================================
* Copyright 2002-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// The developers of JMeter and Apache are greatful to the developers
// of HTMLParser for giving Apache Software Foundation a non-exclusive
// license. The performance benefits of HTMLParser are clear and the
// users of JMeter will benefit from the hard work the HTMLParser
// team. For detailed information about HTMLParser, the project is
// hosted on sourceforge at http://htmlparser.sourceforge.net/.
//
// HTMLParser was originally created by Somik Raha in 2000. Since then
// a healthy community of users has formed and helped refine the
// design so that it is able to tackle the difficult task of parsing
// dirty HTML. Derrick Oswald is the current lead developer and was kind
// enough to assist JMeter.
package org.htmlparser.scanners;
import java.util.Stack;
import org.htmlparser.tags.Bullet;
import org.htmlparser.tags.Tag;
import org.htmlparser.tags.data.CompositeTagData;
import org.htmlparser.tags.data.TagData;
import org.htmlparser.util.ParserException;
/**
* This scanner is created by BulletListScanner. It shares a stack to maintain
* the parent-child relationship with BulletListScanner. The rules implemented
* are :<br>
* [1] A <ul> can have <li> under it<br>
* [2] A <li> can have <ul> under it<br>
* [3] A <li> cannot have <li> under it<br>
* <p>
* These rules are implemented easily through the shared stack.
*/
public class BulletScanner extends CompositeTagScanner {
private static final String[] MATCH_STRING = { "LI" };
private final static String ENDERS[] = { "BODY", "HTML" };
private final static String END_TAG_ENDERS[] = { "UL" };
private Stack ulli;
public BulletScanner(Stack ulli) {
this("", ulli);
}
public BulletScanner(String filter, Stack ulli) {
super(filter, MATCH_STRING, ENDERS, END_TAG_ENDERS, false);
this.ulli = ulli;
}
public Tag createTag(TagData tagData, CompositeTagData compositeTagData) throws ParserException {
return new Bullet(tagData, compositeTagData);
}
public String[] getID() {
return MATCH_STRING;
}
/**
* This is the logic that decides when a bullet tag can be allowed
*/
public boolean shouldCreateEndTagAndExit() {
if (ulli.size() == 0)
return false;
CompositeTagScanner parentScanner = (CompositeTagScanner) ulli.peek();
if (parentScanner == this) {
ulli.pop();
return true;
} else
return false;
}
public void beforeScanningStarts() {
ulli.push(this);
}
}