Java Wildcard to Regex wildcard2regexp(String wildcard)

Description

Compile wildcard to regexp

License

Open Source License

Declaration

public static String wildcard2regexp(String wildcard) 

Method Source Code

//package com.java2s;
/**/*from   w w  w  . j  av a2 s  .c om*/
 *  OpenKM, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2013  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  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.
 */

public class Main {
    /**
     * Compile wildcard to regexp
     */
    public static String wildcard2regexp(String wildcard) {
        StringBuffer sb = new StringBuffer("^");

        for (int i = 0; i < wildcard.length(); i++) {
            char c = wildcard.charAt(i);

            switch (c) {
            case '.':
                sb.append("\\.");
                break;

            case '*':
                sb.append(".*");
                break;

            case '?':
                sb.append(".");
                break;

            default:
                sb.append(c);
                break;
            }
        }

        return sb.toString();
    }
}

Related

1. wildcard2Regex(final String wildcard)
2. wildcardAsRegex(String patternWithWildcards)
3. wildcardAsRegex(String wildcard)
4. wildcardToJavaRegex(String expr)
5. wildcardToJavaRegexp(String expr)