public class ProcedureNameProvider : SqlObjectNameProvider
{
    protected override string RegExPattern => @"((?!PROCEDURE).)*[\s]+PROCEDURE(\s*)(?<proc_name>[^\s]+)[\s]+";

    public override string GetNameFromSqlScript(string sqlObjectDefinition)
    {
        Match match = new Regex(RegExPattern, RegexOptions.IgnoreCase).Match(sqlObjectDefinition);
        return match.Success ? NormalizeBrackets(match.Groups["proc_name"].Value) : String.Empty;
    }
}