/* $Id$ */
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.manifoldcf.crawler.connectors.webcrawler;
import org.apache.manifoldcf.core.interfaces.*;
import org.apache.manifoldcf.connectorcommon.fuzzyml.*;
import java.util.*;
/** This class interprets the tag stream generated by the HTMLParseState class, and causes script sections to be skipped */
public class ScriptParseState extends HTMLParseState
{
// Script tag parsing states
protected static final int SCRIPTPARSESTATE_NORMAL = 0;
protected static final int SCRIPTPARSESTATE_INSCRIPT = 1;
protected int scriptParseState = SCRIPTPARSESTATE_NORMAL;
public ScriptParseState()
{
super();
}
// Override methods having to do with notification of tag discovery
@Override
protected boolean noteTag(String tagName, Map<String,String> attributes)
throws ManifoldCFException
{
if (super.noteTag(tagName,attributes))
return true;
switch (scriptParseState)
{
case SCRIPTPARSESTATE_NORMAL:
if (tagName.equals("script"))
scriptParseState = SCRIPTPARSESTATE_INSCRIPT;
else
if (noteNonscriptTag(tagName,attributes))
return true;
break;
case SCRIPTPARSESTATE_INSCRIPT:
// Skip all tags until we see the end script one.
break;
default:
throw new ManifoldCFException("Unknown script parse state: "+Integer.toString(scriptParseState));
}
return false;
}
@Override
protected boolean noteTagEnd(String tagName)
throws ManifoldCFException
{
if (super.noteTagEnd(tagName))
return true;
switch (scriptParseState)
{
case SCRIPTPARSESTATE_NORMAL:
if (noteNonscriptEndTag(tagName))
return true;
break;
case SCRIPTPARSESTATE_INSCRIPT:
// Skip all tags until we see the end script one.
if (tagName.equals("script"))
scriptParseState = SCRIPTPARSESTATE_NORMAL;
break;
default:
break;
}
return false;
}
protected boolean noteNonscriptTag(String tagName, Map<String,String> attributes)
throws ManifoldCFException
{
return false;
}
protected boolean noteNonscriptEndTag(String tagName)
throws ManifoldCFException
{
return false;
}
}