Is Valid Character Value - CSharp System.Xml

CSharp examples for System.Xml:XML String

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Description

Is Valid Character Value

Demo Code

/*//from  w w w.ja v  a2s. c om
 * $Id$
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2015 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
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 * it under the terms of the GNU Affero General Public License version 3
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 * 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
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 * 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.
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 */
using System.Text;
using System;

public class Main{
        /**
         * Checks if a character value should be escaped/unescaped.
         * @param   c   a character value
         * @return  true if it's OK to escape or unescape this value 
         */
        public static bool IsValidCharacterValue(int c) {
            return (c == 0x9 || c == 0xA || c == 0xD
                    || c >= 0x20 && c <= 0xD7FF
                    || c >= 0xE000 && c <= 0xFFFD
                    || c >= 0x10000 && c <= 0x10FFFF);
        }
        /**
         * Checks if a character value should be escaped/unescaped.
         * @param   s   the String representation of an integer
         * @return  true if it's OK to escape or unescape this value 
         */
        public static bool IsValidCharacterValue(String s) {
            try {
                int i = int.Parse(s);
                return IsValidCharacterValue(i);
            }
            catch {
                return false;
            }
        }
}

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