public BaseOptionError(IOptionDetails optionDetails, string message)
: base(message)
{
OptionDetails = optionDetails;
}
public InvalidOptionValueError(IOptionDetails optionDetails, object value)
: base(optionDetails, BuildMessage(optionDetails, value))
{
}
private static string BuildMessage(IOptionDetails optionDetails, object value)
{
Guard.IsNotNull(() => optionDetails);
return(string.Format("{0} '{1}' value is invalid: '{2}'", optionDetails.OptionType, optionDetails.Name, value));
}
public RequiredOptionMissingError(IOptionDetails optionDetails)
: base(optionDetails, BuildMessage(optionDetails))
{
OptionDetails = optionDetails;
}
private static string BuildMessage(IOptionDetails optionDetails)
{
Guard.IsNotNull(() => optionDetails);
return(string.Format("{0}: '{1}' is required", optionDetails.OptionType, optionDetails.Name));
}
public ParserResult <T> Parse <T>(IList <string> args)
where T : new()
{
var optionsInstance = new T();
var optionDetailsList = OptionDetails.Build(typeof(T));
var errors = new List <IParserError>();
Validate(errors, optionDetailsList);
if (!errors.Any())
{
ApplyDefaultValues(errors, optionsInstance, optionDetailsList);
}
if (!errors.Any())
{
var position = 0;
IOptionDetails currentOption = null;
foreach (var arg in args)
{
if (string.IsNullOrEmpty(arg))
{
continue;
}
if (currentOption != null)
{
try
{
currentOption.SetValue(optionsInstance, arg);
}
catch (Exception)
{
errors.Add(new InvalidOptionValueError(currentOption, arg));
}
currentOption = null;
continue;
}
if (IsLongOption(Configuration, arg))
{
var optionName = arg.Before("=");
currentOption = FindOption(optionDetailsList, optionName);
if (currentOption == null)
{
errors.Add(new UnknownOptionError(arg));
}
}
if (IsShortOption(Configuration, arg))
{
var optionName = ExtractOptionName(Configuration, arg);
currentOption = FindOption(optionDetailsList, optionName);
if (currentOption == null)
{
errors.Add(new UnknownOptionError(optionName));
}
continue;
}
// Find Parameter
var parameter = FindParameter(optionDetailsList, position);
if (parameter == null)
{
errors.Add(new UnknownParameterError(position));
continue;
}
try
{
parameter.SetValue(optionsInstance, arg);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
errors.Add(new InvalidOptionValueError(parameter, arg));
}
++position;
}
}
var result = new ParserResult <T>(
optionsInstance,
Configuration,
optionDetailsList,
errors
);
return(result);
}
