public static Pattern compilePatternForLikeSyntax(String expression) {
        expression = expression.replace(".", "\\.");

        // convert from SQL LIKE syntax to regex
        expression = expression.replace(WILDCARD_ONE, ".");
        expression = expression.replace(WILDCARD, ".*");

        return Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
    }
Gets the symbol which represents this comparison

@return the comparison symbol
common/src/main/java/me/lucko/luckperms/common/filter/Comparison.java