Java XML Encode toXMLCData(String cdata)

Description

to XMLC Data

License

Open Source License

Declaration

public static String toXMLCData(String cdata) 

Method Source Code

//package com.java2s;
/**//from   w w w .  j  a v  a 2  s  .c o  m
 * Copyright 2004-2014 Riccardo Solmi. All rights reserved.
 * This file is part of the Whole Platform.
 *
 * The Whole Platform 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 3 of the License, or
 * (at your option) any later version.
 *
 * The Whole Platform 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 the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    public static byte[] cdataFilter;

    public static String toXMLCData(String cdata) {
        char[] charArray = cdata.toCharArray();
        StringBuilder buffer = new StringBuilder();

        for (int i = 0; i < charArray.length; i++) {
            final char ch = charArray[i];

            switch (cdataFilter(ch)) {
            case 0:
                buffer.append(ch);
                break;
            case 1:
                break;
            case 2:
                if (charArray[i + 1] == ']' && charArray[i + 2] == '>') {
                    buffer.append("]]]]><![CDATA[>");
                    i += 2;
                } else
                    buffer.append(ch);
                break;
            case 3:
                if (Character.isSurrogatePair(ch, charArray[i + 1])
                        && Character.isSupplementaryCodePoint(Character.toCodePoint(ch, charArray[i + 1]))) {
                    buffer.append(ch);
                    buffer.append(charArray[++i]);
                }
            }
        }
        return buffer.toString();
    }

    public static byte cdataFilter(char ch) {
        if (cdataFilter == null) {
            cdataFilter = new byte[65536];
            for (int i = 0; i < cdataFilter.length; i++) {
                if (i < 0x0020)
                    switch (i) {
                    case '\t':
                    case '\n':
                    case '\r':
                        cdataFilter[i] = 0;
                        break;
                    default:
                        cdataFilter[i] = 1;
                        break;
                    }
                else if (i <= 0xd7ff) {
                    if (i == ']')
                        cdataFilter[i] = 2;
                    else
                        cdataFilter[i] = 0;
                } else if (i < 0xe000) {
                    cdataFilter[i] = 3;
                } else if (i <= 0xfffd)
                    cdataFilter[i] = 0;
                else
                    cdataFilter[i] = 1;
            }
        }
        return cdataFilter[ch];
    }
}

Related

1. encodeXML(String text)
2. textToXml(String text)
3. textToXML(String text)
4. toXMLCharData(String javaString)
5. toXMLEscapedTextExpandingWhitespace(String text)
6. unwrapCdata(String s)
7. unwrapCdata(String sText)