Java String Quote quote(String s, String specials, char quoteChar)

Description

quote

License

Open Source License

Declaration

public static String quote(String s, String specials, char quoteChar) 

Method Source Code

//package com.java2s;
/*/*w  w w .  ja  v a  2s  .co m*/
 Copyright (C) 2003 Morten O. Alver
    
 All programs in this directory and
 subdirectories are published under the GNU General Public License as
 described below.
    
 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 USA
    
 Further information about the GNU GPL is available at:
 http://www.gnu.org/copyleft/gpl.ja.html
    
 */

public class Main {
    public static String quote(String s, String specials, char quoteChar) {
        return quote(s, specials, quoteChar, 0);
    }

    /**
     * Quote special characters.
     * 
     * @param s
     *            The String which may contain special characters.
     * @param specials
     *            A String containing all special characters except the quoting
     *            character itself, which is automatically quoted.
     * @param quoteChar
     *            The quoting character.
     * @param linewrap
     *            The number of characters after which a linebreak is inserted
     *            (this linebreak is undone by unquote()). Set to 0 to disable.
     * @return A String with every special character (including the quoting
     *         character itself) quoted.
     */
    public static String quote(String s, String specials, char quoteChar, int linewrap) {
        StringBuffer sb = new StringBuffer();
        char c;
        int linelength = 0;
        boolean isSpecial;
        for (int i = 0; i < s.length(); ++i) {
            c = s.charAt(i);
            isSpecial = specials.indexOf(c) >= 0 || c == quoteChar;
            // linebreak?
            if (linewrap > 0 && (++linelength >= linewrap || (isSpecial && linelength >= linewrap - 1))) {
                sb.append(quoteChar);
                sb.append('\n');
                linelength = 0;
            }
            if (isSpecial) {
                sb.append(quoteChar);
                ++linelength;
            }
            sb.append(c);
        }
        return sb.toString();
    }
}

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