Java Unicode unicodeToHTMLUnicodeEntity(final String text)

Description

unicode To HTML Unicode Entity

License

Open Source License

Declaration

public static String unicodeToHTMLUnicodeEntity(final String text) 

Method Source Code

//package com.java2s;
/*//from w w  w. j  ava 2s.com
 *  Freeplane - mind map editor
 *  Copyright (C) 2008 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
 *
 *  This file is modified by Dimitry Polivaev in 2008.
 *
 *  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 2 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/>.
 */

public class Main {
    public static String unicodeToHTMLUnicodeEntity(final String text) {
        /*
         * Heuristic reserve for expansion : factor 1.2
         */
        StringBuilder result = null;
        int intValue;
        char myChar;
        for (int i = 0; i < text.length(); ++i) {
            myChar = text.charAt(i);
            intValue = text.charAt(i);
            if (intValue < 32 || intValue > 126) {
                if (result == null) {
                    result = new StringBuilder((int) (text.length() * 1.2));
                    result.append(text.subSequence(0, i));
                }
                result.append("&#x").append(Integer.toString(intValue, 16)).append(';');
            } else if (result != null) {
                result.append(myChar);
            }
        }
        if (result != null)
            return result.toString();
        return text;
    }
}

Related

1. unicodeEncode(String s)
2. unicodeHTMLEscape(final String s)
3. unicodePreservingIndex(String str, int index)
4. unicodePreservingSubstring(String str, int begin, int end)
5. unicodeToChar(char[] unicode)
6. unicodeTrim(String s)