Unescapes 'lt', 'gt', 'apos', 'quote' and 'amp' to the corresponding character values. - Java XML

Java examples for XML:XML String Escape

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Description

Unescapes 'lt', 'gt', 'apos', 'quote' and 'amp' to the corresponding character values.

Demo Code

/*// www . ja  v a 2s  . c om
 * $Id: c252e97234599bbc2c9094ce3ee83beaa8e24d93 $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2016 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, Balder Van Camp, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
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 * address: sales@itextpdf.com
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        String s = "java2s.com";
        System.out.println(unescape(s));
    }

    /**
     * Unescapes 'lt', 'gt', 'apos', 'quote' and 'amp' to the
     * corresponding character values.
     * @param   s   a string representing a character
     * @return   a character value
     */
    public static int unescape(String s) {
        if ("apos".equals(s))
            return '\'';
        if ("quot".equals(s))
            return '"';
        if ("lt".equals(s))
            return '<';
        if ("gt".equals(s))
            return '>';
        if ("amp".equals(s))
            return '&';
        return -1;
    }
}

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