/*
 *  Copyright 1999-2004 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.jasper.compiler;

import org.apache.jasper.JasperException;

/**
 * Generates original "Jakarta"-style comments
 *
 * @author Mandar Raje [patch submitted by Yury Kamen]
 */
public class JakartaCommentGenerator implements CommentGenerator {
    
    /**
     * Generates "start-of the JSP-embedded code block" comment
     *
     * @param out The ServletWriter
     * @param start Start position of the block
     * @param stop End position of the block
     * @exception JasperException 
     */
    public void generateStartComment(Generator generator, ServletWriter out, 
                                     Mark start, Mark stop) 
        throws JasperException 
    {
	String html = "";
        if (generator instanceof CharDataGenerator) {
	   html = "// HTML ";
	}
 	if (start != null && stop != null) {
	    if (start.fileid == stop.fileid) {
		String fileName = out.quoteString(start.getFile ());
		out.println(html + "// begin [file=" + fileName+";from=" + start.toShortString() + ";to=" + stop.toShortString() + "]");
	    } else {
		out.println(html + "// begin [from="+start+";to="+stop+"]");
            }
	} else {
	    out.println(html + "// begin");
        }

      out.pushIndent();
    }

   /**
     * Generates "end-of the JSP-embedded code block" comment
     *
     * @param out The ServletWriter
     * @param start Start position of the block
     * @param stop End position of the block
     * @exception JasperException
     */
    public void generateEndComment(Generator generator, ServletWriter out, Mark start, Mark stop) throws JasperException {
	out.popIndent();
        out.println("// end");
    }
}
//        String fileName = "null";
//         if(start != null) {
//              fileName = out.quoteString(start.getFile());
//         }
//         String startString = "null";
//         if(null != start) {
//            startString =  start.toShortString();
//         }

//         String stopString = "null";
//         if(null != stop) {
//            stopString =  stop.toShortString();
//         }
//         out.println("// begin [file="+fileName+";from="+startString+";to="+stopString+"]");