1   /*
    2    * Copyright (c) 2000 World Wide Web Consortium,
    3    * (Massachusetts Institute of Technology, Institut National de
    4    * Recherche en Informatique et en Automatique, Keio University). All
    5    * Rights Reserved. This program is distributed under the W3C's Software
    6    * Intellectual Property License. This program is distributed in the
    7    * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
    8    * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
    9    * PURPOSE.
   10    * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
   11    */
   12   
   13   package org.w3c.dom.css;
   14   
   15   import org.w3c.dom.DOMException;
   16   
   17   /**
   18    *  The <code>CSSCharsetRule</code> interface represents a @charset rule in a 
   19    * CSS style sheet. The value of the <code>encoding</code> attribute does 
   20    * not affect the encoding of text data in the DOM objects; this encoding is 
   21    * always UTF-16. After a stylesheet is loaded, the value of the 
   22    * <code>encoding</code> attribute is the value found in the 
   23    * <code>@charset</code> rule. If there was no <code>@charset</code> in the 
   24    * original document, then no <code>CSSCharsetRule</code> is created. The 
   25    * value of the <code>encoding</code> attribute may also be used as a hint 
   26    * for the encoding used on serialization of the style sheet. 
   27    * <p> The value of the @charset rule (and therefore of the 
   28    * <code>CSSCharsetRule</code>) may not correspond to the encoding the 
   29    * document actually came in; character encoding information e.g. in an HTTP 
   30    * header, has priority (see CSS document representation) but this is not 
   31    * reflected in the <code>CSSCharsetRule</code>. 
   32    * <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>.
   33    * @since DOM Level 2
   34    */
   35   public interface CSSCharsetRule extends CSSRule {
   36       /**
   37        *  The encoding information used in this <code>@charset</code> rule. 
   38        */
   39       public String getEncoding();
   40       /**
   41        *  The encoding information used in this <code>@charset</code> rule. 
   42        * @exception DOMException
   43        *   SYNTAX_ERR: Raised if the specified encoding value has a syntax error 
   44        *   and is unparsable.
   45        *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this encoding rule is 
   46        *   readonly.
   47        */
   48       public void setEncoding(String encoding)
   49                              throws DOMException;
   50   
   51   }