/*

 * 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.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package javax.swing.text.html.parser;

import java.util.Vector;

import java.util.Hashtable;

import java.util.Enumeration;

import java.io.*;

/**

 * This class defines the attributes of an SGML element

 * as described in a DTD using the ATTLIST construct.

 * An AttributeList can be obtained from the Element

 * class using the getAttributes() method.

 * <p>

 * It is actually an element in a linked list. Use the

 * getNext() method repeatedly to enumerate all the attributes

 * of an element.

 *

 * @see         Element

 * @author      Arthur Van Hoff

 *

 */

public final

class AttributeList implements DTDConstants, Serializable {

    public String name;

    public int type;

    public Vector<?> values;

    public int modifier;

    public String value;

    public AttributeList next;

    AttributeList() {

    }

    /**

     * Create an attribute list element.

     */

    public AttributeList(String name) {

        this.name = name;

    }

    /**

     * Create an attribute list element.

     */

    public AttributeList(String name, int type, int modifier, String value, Vector<?> values, AttributeList next) {

        this.name = name;

        this.type = type;

        this.modifier = modifier;

        this.value = value;

        this.values = values;

        this.next = next;

    }

    /**

     * @return attribute name

     */

    public String getName() {

        return name;

    }

    /**

     * @return attribute type

     * @see DTDConstants

     */

    public int getType() {

        return type;

    }

    /**

     * @return attribute modifier

     * @see DTDConstants

     */

    public int getModifier() {

        return modifier;

    }

    /**

     * @return possible attribute values

     */

    public Enumeration<?> getValues() {

        return (values != null) ? values.elements() : null;

    }

    /**

     * @return default attribute value

     */

    public String getValue() {

        return value;

    }

    /**

     * @return the next attribute in the list

     */

    public AttributeList getNext() {

        return next;

    }

    /**

     * @return string representation

     */

    public String toString() {

        return name;

    }

    /**

     * Create a hashtable of attribute types.

     */

    static Hashtable attributeTypes = new Hashtable();

    static void defineAttributeType(String nm, int val) {

        Integer num = Integer.valueOf(val);

        attributeTypes.put(nm, num);

        attributeTypes.put(num, nm);

    }

    static {

        defineAttributeType("CDATA", CDATA);

        defineAttributeType("ENTITY", ENTITY);

        defineAttributeType("ENTITIES", ENTITIES);

        defineAttributeType("ID", ID);

        defineAttributeType("IDREF", IDREF);

        defineAttributeType("IDREFS", IDREFS);

        defineAttributeType("NAME", NAME);

        defineAttributeType("NAMES", NAMES);

        defineAttributeType("NMTOKEN", NMTOKEN);

        defineAttributeType("NMTOKENS", NMTOKENS);

        defineAttributeType("NOTATION", NOTATION);

        defineAttributeType("NUMBER", NUMBER);

        defineAttributeType("NUMBERS", NUMBERS);

        defineAttributeType("NUTOKEN", NUTOKEN);

        defineAttributeType("NUTOKENS", NUTOKENS);

        attributeTypes.put("fixed", Integer.valueOf(FIXED));

        attributeTypes.put("required", Integer.valueOf(REQUIRED));

        attributeTypes.put("current", Integer.valueOf(CURRENT));

        attributeTypes.put("conref", Integer.valueOf(CONREF));

        attributeTypes.put("implied", Integer.valueOf(IMPLIED));

    }

    public static int name2type(String nm) {

        Integer i = (Integer)attributeTypes.get(nm);

        return (i == null) ? CDATA : i.intValue();

    }

    public static String type2name(int tp) {

        return (String)attributeTypes.get(Integer.valueOf(tp));

    }

}