/// <summary>
/// Validates provided parsed option for compliance with this option definition.
/// </summary>
/// <param name="parsedOption">parsed option that should be validated</param>
/// <returns>true if the provided option is valid; otherwise returns false</returns>
internal ValueValidationResult Validate(OptionParsed parsedOption)
{
if (parsedOption.Value == null)
{
return(ValueValidationResult.OK);
}
if (_valueParser == null)
{
throw new Exception("Internal Error");
}
return(_valueParser.ValidateValue(parsedOption.Value));
}
private static void ProcessOption(string option, Stack <string> tokens, bool isShort)
{
string[] arguments = option.Split(new char[] { '=' }, 2);
string optionName = arguments[0];
string argument = (arguments.Length > 1) ? arguments[1] : null;
var optionDef = _optionStorage.GetOptionDefinition(optionName);
if (TryLogShortOptionTooLong(isShort, optionName, argument))
{
return;
}
if (TryLogUnknownOption(optionDef, optionName, argument))
{
return;
}
if (TryLogOptionOverride(optionDef, optionName, argument))
{
return;
}
if (argument == null && optionDef.ArgumentPresence != ArgumentPresence.None)
{
if (StackTopIsValidParameter(tokens))
{
argument = tokens.Pop();
}
if (TryLogMandatoryArgumentMissing(argument, optionName, isShort, optionDef))
{
return;
}
}
if (TryLogOptionDoesNotTakeAnArgument(argument, optionName, optionDef, isShort))
{
return;
}
OptionParsed optionParsed = new OptionParsed(optionName, argument, isShort, optionDef.ValueParser);
var validationResult = optionDef.Validate(optionParsed);
if (TryLogValidationError(validationResult, optionParsed))
{
return;
}
_result.AddParsedOption(optionParsed);
}
internal void AddParsedOption(OptionParsed option)
{
OptionDefinition definition = _optionDefinitions.GetOptionDefinition(option.Name);
if (definition == null)
{
throw new ArgumentException("OptionDefinition with provided name does not exist in OptionStorage");
}
if (_pairedOptions.ContainsKey(definition))
{
_errors.Add(new ParseError(ParseErrorKind.DuplicitOption, option.Name, option.Value));
return;
}
_pairedOptions.Add(definition, option);
_parsedOptions.Add(option);
}
private static void AddError(ParseErrorKind errorKind, OptionParsed optionParsed)
{
AddError(errorKind, optionParsed.Name, optionParsed.Value);
}
private static bool TryLogValidationError(ValueValidationResult validationResult, OptionParsed optionParsed)
{
if (validationResult == ValueValidationResult.RangeError)
{
AddError(ParseErrorKind.ArgumentRangeMismatch, optionParsed);
return(true);
}
if (validationResult == ValueValidationResult.TypeError)
{
AddError(ParseErrorKind.ArgumentTypeMismatch, optionParsed);
return(true);
}
return(false);
}