HtmlEscapeHelper.java

/*
 * 				Firetweet - Twitter client for Android
 * 
 *  Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  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 the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.getlantern.firetweet.util;

import org.apache.commons.lang3.StringEscapeUtils;

public class HtmlEscapeHelper {

	public static String escape(final String string) {
		if (string == null) return null;
		return StringEscapeUtils.escapeHtml4(string);
	}

	public static String toHtml(final String string) {
		if (string == null) return null;
		return escape(string).replace("\n", "<br/>");
	}

	public static String toPlainText(final String string) {
		if (string == null) return null;
		return unescape(string.replace("<br/>", "\n").replaceAll("<!--.*?-->|<[^>]+>", ""));
	}

	public static String unescape(final String string) {
		if (string == null) return null;
		return StringEscapeUtils.unescapeHtml4(string);
	}

}