/*
 * Copyright (C) 2008-2015 by Holger Arndt
 *
 * This file is part of the Universal Java Matrix Package (UJMP).
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership and licensing.
 *
 * UJMP 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
 * of the License, or (at your option) any later version.
 *
 * UJMP 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 UJMP; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

package org.ujmp.core.util;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.text.Normalizer;

public abstract class HtmlUtil {

	public static final String toSlug(String s) {
		s = Normalizer.normalize(s, Normalizer.Form.NFD);
		s = s.replaceAll("\\.", "-");
		s = s.replaceAll(":", "-");
		s = s.replaceAll("\\s+", "-");
		s = s.replaceAll("[^\\p{ASCII}]", "");
		s = s.replaceAll("[^a-zA-Z0-9- ]", "");
		s = s.toLowerCase();
		s = s.replaceAll("--", "-");
		s = s.replaceAll("--", "-");
		s = s.replaceAll("--", "-");
		return s;
	}

	public static final String urlEncode(Object o) {
		try {
			return URLEncoder.encode(String.valueOf(o), System.getProperty("file.encoding"));
		} catch (UnsupportedEncodingException e) {
			return null;
		}
	}

	public static final String urlDecode(Object o) {
		try {
			return URLDecoder.decode(String.valueOf(o), System.getProperty("file.encoding"));
		} catch (UnsupportedEncodingException e) {
			return null;
		}
	}

}