Alachisoft.NCache.Common.MessageUtil Maven / Gradle / Ivy

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package Alachisoft.NCache.Common;

public class MessageUtil {
    private static final char ESCAPES[] = {'$', '^', '[', ']', '(', ')', '{', '|', '+', '\\', '.', '<', '>'};

    public static String wildcardToRegex(String pattern) {
        String result = "^";

        for (int i = 0; i < pattern.length(); i++) {
            char ch = pattern.charAt(i);
            boolean escaped = false;
            for (int j = 0; j < ESCAPES.length; j++) {
                if (ch == ESCAPES[j]) {
                    result += "\\" + ch;
                    escaped = true;
                    break;
                }
            }

            if (!escaped) {
                if (ch == '*') {
                    result += ".*";
                } else if (ch == '?') {
                    result += ".";
                } else {
                    result += ch;
                }
            }
        }
        result += "$";
        return result;
    }
}