public GetOptException
(
GetOptError getOptError,
Parameters parameters,
OptionDefinition optionDefinition,
bool isLongOption,
string stringArgument = null,
object argument = null,
string unknownOption = null,
Exception innerException = null
)
: base(CreateMessage(getOptError, optionDefinition, isLongOption, stringArgument, argument, parameters, unknownOption), innerException)
{
OptionDefinition = optionDefinition;
StringArgument = stringArgument;
IsLongOption = isLongOption;
GetOptError = getOptError;
Argument = argument;
Parameters = parameters;
UnknownOption = unknownOption;
}
public static string CreateMessage
(
GetOptError getOptError,
OptionDefinition optionDefinition,
bool isLongOption,
string stringArgument,
dynamic argument,
Parameters parameters,
string unknownOption
)
{
string GetOptionName()
{
return(isLongOption ? $"-{optionDefinition.LongName}" : $"{optionDefinition.ShortName}");
}
string GetPrefix()
{
return($"Argument for option -{GetOptionName()} must be ");
}
var message = string.Empty;
switch (getOptError)
{
case GetOptError.NoError:
message = "No error";
break;
case GetOptError.UnknownOption:
message = $"Unknown option -{(isLongOption ? "-" : string.Empty)}{unknownOption}";
break;
case GetOptError.TypeMismatch:
if (optionDefinition.ArgumentType.IsAssignableFrom(typeof(bool)))
{
var allowedArguments = string.Join(", ", parameters.TrueArguments.Concat(parameters.FalseArguments));
message = $"{GetPrefix()}one of the following: {allowedArguments}";
break;
}
message = $"{GetPrefix()}{optionDefinition.ArgumentType.Name}";
break;
case GetOptError.MustHaveArgument:
message = $"Option -{GetOptionName()} requires an argument";
break;
case GetOptError.MustNotHaveArgument:
message = $"Option -{GetOptionName()} must not have an argument";
break;
case GetOptError.CustomValidationFailed:
case GetOptError.RegexFailed:
message = $"{stringArgument} is not valid for option -{GetOptionName()}";
break;
case GetOptError.OutOfRange:
if (optionDefinition.Maximum is null && !(optionDefinition.Minimum is null) && argument < optionDefinition.Minimum)
{
message = $"{GetPrefix()}{optionDefinition.Minimum} or greater";
}
if (optionDefinition.Minimum is null && !(optionDefinition.Maximum is null) && argument > optionDefinition.Maximum)
{
message = $"{GetPrefix()}{optionDefinition.Maximum} or less";
}
if (!(optionDefinition.Minimum is null) && !(optionDefinition.Maximum is null) && (argument > optionDefinition.Maximum || argument < optionDefinition.Minimum))
{
message = $"{GetPrefix()}between {optionDefinition.Minimum} and {optionDefinition.Maximum}";
}
break;
default:
throw new ArgumentException($"Unknown {nameof(GetOpt)} error");
}
return(message);
}
