Java ASCII to Native asciiToNative(String input)

Description

ascii To Native

License

Open Source License

Declaration

public static String asciiToNative(String input) 

Method Source Code

//package com.java2s;
/*/*from  ww w.  j  a  v a 2s. c  om*/
 * This file is part of the RUNA WFE project.
 * 
 * This program 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; version 2.1 
 * of the License. 
 * 
 * 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 Lesser General Public License for more details. 
 * 
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 */

public class Main {
    public static String asciiToNative(String input) {
        if (input == null) {
            return null;
        }
        StringBuffer buffer = new StringBuffer(input.length());
        boolean precedingBackslash = false;
        for (int i = 0; i < input.length(); i++) {
            char c = input.charAt(i);
            if (precedingBackslash) {
                switch (c) {
                case 'f':
                    c = '\f';
                    break;
                case 'n':
                    c = '\n';
                    break;
                case 'r':
                    c = '\r';
                    break;
                case 't':
                    c = '\t';
                    break;
                case 'u':
                    String hex = input.substring(i + 1, i + 5);
                    c = (char) Integer.parseInt(hex, 16);
                    i += 4;
                }
                precedingBackslash = false;
            } else {
                precedingBackslash = (c == '\\');
            }
            if (!precedingBackslash) {
                buffer.append(c);
            }
        }
        return buffer.toString();
    }
}

Related

1. ascii2native(String code)
2. ascii2native(String line)