Java Wildcard wildcardSearchToRegex(final String wildcard)

Description

wildcard Search To Regex

License

Open Source License

Declaration

private static String wildcardSearchToRegex(final String wildcard) 

Method Source Code

//package com.java2s;
/*/*from w w  w .j  a  v  a 2 s .  co m*/
 * jGnash, a personal finance application
 * Copyright (C) 2001-2019 Craig Cavanaugh
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    private static String wildcardSearchToRegex(final String wildcard) {
        StringBuilder buffer = new StringBuilder(wildcard.length() + 2);
        buffer.append('^');

        for (char c : wildcard.toCharArray()) {

            if (c == '*') {
                buffer.append(".*");
            } else if (c == '?') {
                buffer.append('.');
            } else if ("+()^$.{}[]|\\".indexOf(c) != -1) {
                buffer.append('\\').append(c); // escape special regexp-characters
            } else {
                buffer.append(c);
            }
        }

        buffer.append('$');
        return buffer.toString();
    }
}

Related

1. wildCardBoth(String s)
2. wildcardCompare(String s, String z)
3. wildcardCriterionSQL(final String query)
4. wildcardIfEmpty(String inString)
5. wildcardOrIsNullIfEmpty(String column, String inString)
6. wildcardSqlToUser(String exp)
7. wildCardsToX(String s)
8. wildcardToCaseInsensitiveRegex(final String pattern)
9. wildcardUserToSql(String exp)