/*
* @(#)Element.java 1.9 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.swing.text.html.parser;
import java.util.Hashtable;
import java.util.BitSet;
import java.io.*;
/**
* An element as described in a DTD using the ELEMENT construct.
* This is essentiall 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
* @version 1.9, 12/19/03
* @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;
static int maxIndex = 0;
/**
* 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;
maxIndex = Math.max(maxIndex, index);
}
/**
* 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 contentTypes = new Hashtable();
static {
contentTypes.put("CDATA", new Integer(CDATA));
contentTypes.put("RCDATA", new Integer(RCDATA));
contentTypes.put("EMPTY", new Integer(EMPTY));
contentTypes.put("ANY", new Integer(ANY));
}
public static int name2type(String nm) {
Integer val = (Integer)contentTypes.get(nm);
return (val != null) ? val.intValue() : 0;
}
}
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