Java String Escape escapeXML(String str)

Description

escape some special xml chars.

License

Apache License

Declaration

public static String escapeXML(String str) 

Method Source Code

//package com.java2s;
/*/*from   w  w w. ja  v  a 2  s . c  om*/
 Copyright (C) 2012 The Stanford MobiSocial Laboratory
    
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
    
   http://www.apache.org/licenses/LICENSE-2.0
    
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

import java.util.*;

public class Main {
    /** escape some special xml chars. use at your own risk. */
    public static String escapeXML(String str) {
        if (str == null)
            return null;

        // these are the 5 special xml chars according to http://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references
        str = str.replace("&", "&");
        str = str.replace("'", "'");
        str = str.replace("\"", """);
        str = str.replace("<", "&lt;");
        str = str.replace(">", "&gt;");

        StringBuilder sb = new StringBuilder();

        // can speed this up if needed by checking if it's the common case of no special chars
        char ca[] = str.toCharArray();
        for (char c : ca) {
            if (c > 127)
                try {
                    sb.append("&#x" + String.format("%04x", (int) c) + ";");
                } catch (IllegalFormatConversionException ifce) {
                    System.out.println("REAL WARNING: illegal format conversion: " + ifce + " char = " + (int) c);
                    // ignore it
                }
            else
                sb.append(c);
        }

        return sb.toString();
    }
}

Related

1. escapeUnicode(String s)
2. escapeUnicodeString(final String input, final boolean escapeAscii)
3. escapeUnsafeCharacters(String anyURI, boolean escapePercent)
4. escapeWiki(String s)
5. escapeXML(String message)
6. escapeXml(String str)
7. percentEncode(String s)
8. percentEncode(String s)
9. percentEncode(String value)