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/*

 * Copyright (c) 2000 World Wide Web Consortium,

 * (Massachusetts Institute of Technology, Institut National de

 * Recherche en Informatique et en Automatique, Keio University). All

 * Rights Reserved. This program is distributed under the W3C's Software

 * Intellectual Property License. This program 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 W3C License http://www.w3.org/Consortium/Legal/ for more details.

 */

package org.w3c.dom.css;

import org.w3c.dom.DOMException;

/**

 *  The <code>CSSCharsetRule</code> interface represents a @charset rule in a

 * CSS style sheet. The value of the <code>encoding</code> attribute does

 * not affect the encoding of text data in the DOM objects; this encoding is

 * always UTF-16. After a stylesheet is loaded, the value of the

 * <code>encoding</code> attribute is the value found in the

 * <code>@charset</code> rule. If there was no <code>@charset</code> in the

 * original document, then no <code>CSSCharsetRule</code> is created. The

 * value of the <code>encoding</code> attribute may also be used as a hint

 * for the encoding used on serialization of the style sheet.

 * <p> The value of the @charset rule (and therefore of the

 * <code>CSSCharsetRule</code>) may not correspond to the encoding the

 * document actually came in; character encoding information e.g. in an HTTP

 * header, has priority (see CSS document representation) but this is not

 * reflected in the <code>CSSCharsetRule</code>.

 * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113'>Document Object Model (DOM) Level 2 Style Specification</a>.

 * @since DOM Level 2

 */

public interface CSSCharsetRule extends CSSRule {

    /**

     *  The encoding information used in this <code>@charset</code> rule.

     */

    public String getEncoding();

    /**

     *  The encoding information used in this <code>@charset</code> rule.

     * @exception DOMException

     *   SYNTAX_ERR: Raised if the specified encoding value has a syntax error

     *   and is unparsable.

     *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this encoding rule is

     *   readonly.

     */

    public void setEncoding(String encoding)

                           throws DOMException;

}