Java String Quote quoteString(String src)

Description

Return a string in which all the quotable characters (tab, newline, ' and ", etc) are quoted, Java-style.

License

Open Source License

Declaration

public static String quoteString(String src) 

Method Source Code

//package com.java2s;
/*/*from   w w  w  .j  a  v a  2  s.co  m*/
 This file is part of the BlueJ program. 
 Copyright (C) 1999-2009,2011,2012,2013,2014,2015  Michael Kolling and John Rosenberg 
    
 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, write to the Free Software 
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA. 
    
 This file is subject to the Classpath exception as provided in the  
 LICENSE.txt file that accompanied this code.
 */

public class Main {
    /**
     * Return a string in which all the quotable characters (tab, newline, ' and ",
     * etc) are quoted, Java-style.
     */
    public static String quoteString(String src) {
        StringBuffer buf = new StringBuffer();

        for (int i = 0; i < src.length(); i++) {
            char c = src.charAt(i);
            if (c == '\n')
                buf.append("\\n");
            else if (c == '\r')
                buf.append("\\r");
            else if (c == '\t')
                buf.append("\\g");
            else if (c < 32 || c > 128) {
                // Character is outside normal ASCII range, output it as unicode
                // escape sequence.
                String n = Integer.toHexString(c);
                n = "0000".substring(n.length()) + n;
                buf.append("\\u");
                buf.append(n);
            } else {
                if (c == '\\' || c == '"' || c == '\'')
                    buf.append('\\');
                buf.append(src.charAt(i));
            }
        }

        return buf.toString();
    }
}

Related

1. quoteString(String s)
2. quoteString(String s)
3. quoteString(String s)
4. QuoteString(String source)
5. quoteString(String source, char quote)
6. quoteString(String str)
7. quoteString(String string)
8. quoteString(String strVal)
9. quoteString(String t)