private static string AddArgument(ValidOption option)
{
switch (option.OptionType)
{
case OptionType.Optional:
return(string.Format(" [{0}]", option.ArgumentName));
case OptionType.Required:
return(string.Format(" {0}", option.ArgumentName));
default:
return(string.Empty);
}
}
public IEnumerable <ValidOption> Parse(string shortcut)
{
var validOptions = new List <ValidOption>();
if (string.IsNullOrWhiteSpace(shortcut))
{
return(validOptions);
}
ValidOption validOption = null;
foreach (char flag in shortcut)
{
if (flag != ':')
{
if (validOption != null)
{
validOptions.Add(validOption);
}
if (validOptions.Count(v => v.Flag == flag) != 0)
{
throw new InvalidDefinitionException(string.Format("{0} is used more than once in the shortcut list '{1}'",
flag, shortcut));
}
validOption = new ValidOption {
Flag = flag
};
continue;
}
if (validOption != null)
{
validOption.OptionType++;
}
}
if (validOption == null)
{
return(validOptions);
}
if (validOptions.Contains(validOption))
{
return(validOptions);
}
validOptions.Add(validOption);
return(validOptions);
}
public void Parse(IEnumerable <string> argv)
{
Options = new List <Option>();
Arguments = new List <string>();
bool needOptArg = false;
bool stopScanning = false;
foreach (string argument in argv)
{
if (stopScanning)
{
Arguments.Add(argument);
continue;
}
if (!argument.StartsWith("-"))
{
if (!needOptArg)
{
Arguments.Add(argument);
continue;
}
Options[Options.Count - 1].Argument = argument;
needOptArg = false;
continue;
}
if (argument == "--")
{
stopScanning = true;
continue;
}
if (argument.StartsWith("--"))
{
string[] parts = argument.Split('=', ':');
string longOpt = parts[0].Substring(2);
ValidOption validOption = GetLongOption(longOpt);
Options.Add(new Option {
Flag = validOption.Flag
});
if (validOption.OptionType != OptionType.None)
{
if (parts.Length > 1)
{
Options[Options.Count - 1].Argument = parts[1];
}
else
{
needOptArg = true;
}
}
continue;
}
foreach (char flag in argument.Where(c => c != '-'))
{
if (ValidOptions.Count(v => v.Flag == flag) == 0)
{
throw new InvalidOptionException(string.Format("{0} is not a valid option.", flag));
}
Options.Add(new Option {
Flag = flag
});
}
needOptArg = ValidOptions.Last(m => m.Flag == Options[Options.Count - 1].Flag).OptionType !=
OptionType.None;
}
}
