Back to index...

	/*
	* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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 General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package javax.swing.text.html.parser;

	import java.util.Hashtable;
	import java.util.BitSet;
	import java.io.*;
	import sun.awt.AppContext;

	/**
	* An element as described in a DTD using the ELEMENT construct.
	* This is essential the description of a tag. It describes the
	* type, content model, attributes, attribute types etc. It is used
	* to correctly parse a document by the Parser.
	*
	* @see DTD
	* @see AttributeList
	* @author Arthur van Hoff
	*/
	public final
	class Element implements DTDConstants, Serializable {
	public int index;
	public String name;
	public boolean oStart;
	public boolean oEnd;
	public BitSet inclusions;
	public BitSet exclusions;
	public int type = ANY;
	public ContentModel content;
	public AttributeList atts;

	/**
	* A field to store user data. Mostly used to store
	* style sheets.
	*/
	public Object data;

	Element() {
	}

	/**
	* Create a new element.
	*/
	Element(String name, int index) {
	this.name = name;
	this.index = index;
	if (index > getMaxIndex()) {
	AppContext.getAppContext().put(MAX_INDEX_KEY, index);
	}
	}

	private static final Object MAX_INDEX_KEY = new Object();

	static int getMaxIndex() {
	Integer value = (Integer) AppContext.getAppContext().get(MAX_INDEX_KEY);
	return (value != null)
	? value.intValue()
	: 0;
	}

	/**
	* Get the name of the element.
	*/
	public String getName() {
	return name;
	}

	/**
	* Return true if the start tag can be omitted.
	*/
	public boolean omitStart() {
	return oStart;
	}

	/**
	* Return true if the end tag can be omitted.
	*/
	public boolean omitEnd() {
	return oEnd;
	}

	/**
	* Get type.
	*/
	public int getType() {
	return type;
	}

	/**
	* Get content model
	*/
	public ContentModel getContent() {
	return content;
	}

	/**
	* Get the attributes.
	*/
	public AttributeList getAttributes() {
	return atts;
	}

	/**
	* Get index.
	*/
	public int getIndex() {
	return index;
	}

	/**
	* Check if empty
	*/
	public boolean isEmpty() {
	return type == EMPTY;
	}

	/**
	* Convert to a string.
	*/
	public String toString() {
	return name;
	}

	/**
	* Get an attribute by name.
	*/
	public AttributeList getAttribute(String name) {
	for (AttributeList a = atts ; a != null ; a = a.next) {
	if (a.name.equals(name)) {
	return a;
	}
	}
	return null;
	}

	/**
	* Get an attribute by value.
	*/
	public AttributeList getAttributeByValue(String name) {
	for (AttributeList a = atts ; a != null ; a = a.next) {
	if ((a.values != null) && a.values.contains(name)) {
	return a;
	}
	}
	return null;
	}


	static Hashtable<String, Integer> contentTypes = new Hashtable<String, Integer>();

	static {
	contentTypes.put("CDATA", Integer.valueOf(CDATA));
	contentTypes.put("RCDATA", Integer.valueOf(RCDATA));
	contentTypes.put("EMPTY", Integer.valueOf(EMPTY));
	contentTypes.put("ANY", Integer.valueOf(ANY));
	}

	public static int name2type(String nm) {
	Integer val = contentTypes.get(nm);
	return (val != null) ? val.intValue() : 0;
	}
	}

Back to index...