Java String Unquote unquotedCharLiteral(char c)

Description

unquoted Char Literal

License

Open Source License

Declaration

public static String unquotedCharLiteral(char c) 

Method Source Code

//package com.java2s;
/*// www. ja v a  2s . c o  m
 * Copyright (c) 2005 Henri Sivonen
 *
 * Permission is hereby granted, free of charge, to any person obtaining a 
 * copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the 
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 */

public class Main {
    public static String unquotedCharLiteral(char c) {
        // http://java.sun.com/docs/books/jls/second_edition/html/lexical.doc.html#101089
        switch (c) {
        case '\b':
            return "\\b";
        case '\t':
            return "\\t";
        case '\n':
            return "\\n";
        case '\f':
            return "\\f";
        case '\r':
            return "\\r";
        case '\"':
            return "\\\"";
        case '\'':
            return "\\\'";
        case '\\':
            return "\\\\";
        default:
            if (c >= ' ' && c <= '~') {
                return "" + c;
            } else {
                String hex = Integer.toHexString((int) c);
                switch (hex.length()) {
                case 1:
                    return "\\u000" + hex;
                case 2:
                    return "\\u00" + hex;
                case 3:
                    return "\\u0" + hex;
                default:
                    return "\\u" + hex;
                }
            }
        }
    }
}

Related

1. unquote(String value)
2. unquote(String value)
3. unquoteAtom(String atom)
4. unquoteCharacterLiteral(String charLiteralStr)
5. unquoteCString(String str)
6. unquotedString(String str)
7. unquoteHtmlContent(String x)
8. unQuoteIdentifier(String identifier, boolean useAnsiQuotedIdentifiers)
9. unQuoteIdentifier(String identifier, String quoteChar)