/*
    GNU LESSER GENERAL PUBLIC LICENSE
    Copyright (C) 2006 The XAMJ Project

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Contact info: lobochief@users.sourceforge.net
*/
package org.lobobrowser.util;

public class Html {
	public static String textToHTML(String text) {
		if(text == null) {
			return null;
		}
		int length = text.length();
		boolean prevSlashR = false;
		StringBuffer out = new StringBuffer();
		for(int i = 0; i < length; i++) {
			char ch = text.charAt(i);
			switch(ch) {
			case '\r':
				if(prevSlashR) {
					out.append("<br>");					
				}
				prevSlashR = true;
				break;
			case '\n':
				prevSlashR = false;
				out.append("<br>");
				break;
			case '"':
				if(prevSlashR) {
					out.append("<br>");
					prevSlashR = false;					
				}
				out.append("&quot;");
				break;
			case '<':
				if(prevSlashR) {
					out.append("<br>");
					prevSlashR = false;					
				}
				out.append("&lt;");
				break;
			case '>':
				if(prevSlashR) {
					out.append("<br>");
					prevSlashR = false;					
				}
				out.append("&gt;");
				break;
			case '&':
				if(prevSlashR) {
					out.append("<br>");
					prevSlashR = false;					
				}
				out.append("&amp;");
				break;
			default:
				if(prevSlashR) {
					out.append("<br>");
					prevSlashR = false;					
				}
				out.append(ch);
				break;
			}
		}
		return out.toString();
	}
}