private ParserRunner GetMultiTypesParser(string[] args, ParserRegistration registration)
{
Debug.Assert(args.Any());
var verb = args[0];
// if the first arg is not a verb - throw
//
if (verb.StartsWith(ParserRunner.ArgumentPrefixes))
{
throw new MissingVerbException();
}
if (!verb.Contains(s_delimiters))
{
throw new MultiParserMissingClassNameException();
}
var parts = verb.Split(s_delimiters, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length != 2)
{
throw new InvalidVerbException();
}
var typeNameOrAlias = parts[0];
args[0] = args[0].Substring(typeNameOrAlias.Length + 1);
var matchingType = registration.GetTargetType(typeNameOrAlias);
if (matchingType == null)
{
throw new UnknownParserTypeException(typeNameOrAlias);
}
return(new ParserRunner(matchingType, registration, HelpGenerator));
}
