// HTMLParser Library $Name: v1_6 $ - A java-based parser for HTML// http://sourceforge.org/projects/htmlparser// Copyright (C) 2003 Somik Raha//// Revision Control Information//// $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/scanners/ScriptScanner.java,v $// $Author: derrickoswald $// $Date: 2006/05/27 14:36:46 $// $Revision: 1.64 $//// This library is free software; you can redistribute it and/or// modify it under the terms of the GNU Lesser General Public// License as published by the Free Software Foundation; either// version 2.1 of the License, or (at your option) any later version.//// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU// Lesser General Public License for more details.//// You should have received a copy of the GNU Lesser General Public// License along with this library; if not, write to the Free Software// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA//package org.htmlparser.scanners;import java.util.Vector;import org.htmlparser.Attribute;import org.htmlparser.Node;import org.htmlparser.NodeFactory;import org.htmlparser.PrototypicalNodeFactory;import org.htmlparser.Remark;import org.htmlparser.Tag;import org.htmlparser.Text;import org.htmlparser.lexer.Cursor;import org.htmlparser.lexer.Lexer;import org.htmlparser.lexer.Page;import org.htmlparser.scanners.ScriptDecoder;import org.htmlparser.tags.ScriptTag;import org.htmlparser.util.NodeList;import org.htmlparser.util.ParserException;/** * The ScriptScanner handles script CDATA. */public class ScriptScanner    extends        CompositeTagScanner{    /**     * Strict parsing of CDATA flag.     * If this flag is set true, the parsing of script is performed without     * regard to quotes. This means that erroneous script such as:     * <pre>     * document.write("&lt;/script&gt");     * </pre>     * will be parsed in strict accordance with appendix     * <a href="http://www.w3.org/TR/html4/appendix/notes.html#notes-specifying-data">     * B.3.2 Specifying non-HTML data</a> of the     * <a href="http://www.w3.org/TR/html4/">HTML 4.01 Specification</a> and     * hence will be split into two or more nodes. Correct javascript would     * escape the ETAGO:     * <pre>     * document.write("&lt;\/script&gt");     * </pre>     * If true, CDATA parsing will stop at the first ETAGO ("&lt;/") no matter     * whether it is quoted or not. If false, balanced quotes (either single or     * double) will shield an ETAGO. Beacuse of the possibility of quotes within     * single or multiline comments, these are also parsed. In most cases,     * users prefer non-strict handling since there is so much broken script     * out in the wild.     */    public static boolean STRICT = true;    /**     * Create a script scanner.     */    public ScriptScanner()    {    }    /**     * Scan for script.     * Accumulates text from the page, until &lt;/[a-zA-Z] is encountered.     * @param tag The tag this scanner is responsible for.     * @param lexer The source of CDATA.     * @param stack The parse stack, <em>not used</em>.     */    public Tag scan (Tag tag, Lexer lexer, NodeList stack)        throws ParserException    {        String language;        String code;        Node content;        int position;        Node node;        Attribute attribute;        Vector vector;        if (tag instanceof ScriptTag)        {            language = ((ScriptTag)tag).getLanguage ();            if ((null != language) &&                (language.equalsIgnoreCase ("JScript.Encode") ||                 language.equalsIgnoreCase ("VBScript.Encode")))            {                code = ScriptDecoder.Decode (lexer.getPage (), lexer.getCursor ());                ((ScriptTag)tag).setScriptCode (code);            }        }        content = lexer.parseCDATA (!STRICT);        position = lexer.getPosition ();        node = lexer.nextNode (false);        if (null != node)            if (!(node instanceof Tag) || !(   ((Tag)node).isEndTag ()                && ((Tag)node).getTagName ().equals (tag.getIds ()[0])))            {                lexer.setPosition (position);                node = null;            }        // build new end tag if required        if (null == node)        {            attribute = new Attribute ("/script", null);            vector = new Vector ();            vector.addElement (attribute);            node = lexer.getNodeFactory ().createTagNode (                lexer.getPage (), position, position, vector);        }        tag.setEndTag ((Tag)node);        if (null != content)        {            tag.setChildren (new NodeList (content));            content.setParent (tag);        }        node.setParent (tag);        tag.doSemanticAction ();        return (tag);    }}