Convert an SQL like pattern into a regular expression pattern

var pattern = Regex.Replace(
    likePattern,
    @"[%_]|\[[^]]*\]|[^%_[]+",
    match =>
    {
        if (match.Value == "%")
        {
            return ".*";
        }
        if (match.Value == "_")
        {
            return ".";
        }
        if (match.Value.StartsWith("[") && match.Value.EndsWith("]"))
        {
            return match.Value;
        }
        return Regex.Escape(match.Value);
    });