public string[] Parse(string[] args)
{
var stack = new Stack<string>(args.Reverse());
while (stack.Count > 0)
{
var option = stack.Pop();
//the rest should be passed back.
if (option == "--")
break;
//not an option so push it back onto the stack and give up
if ((option[0] != '/') && (option[0] != '-'))
{
stack.Push(option);
break;
}
//remove extra dash for long form
option = option.Substring(1);
if (option[0] == '-')
option = option.Substring(1);
//if we have an equals sign, break it up
if (option.Contains('='))
{
var values = option.Split(new[] {'='}, 2);
option = values[0];
stack.Push(values[1]);
}
var match = this.Where(o => o.LongForm == option || o.ShortForm == option).FirstOrDefault();
if (match == null)
{
//cant execute the option so put it back.
stack.Push(option);
break;
}
//we are going to execute it
if (match.RequiresParam)
{
//cant execute the option because we dont have a param supplied
if (stack.Count == 0)
throw new MissingOptionParameterException(match);
match.ActionWithParam(stack.Pop());
}
else
{
match.Action();
}
match.Found = true;
}
var notFound = this.FirstOrDefault(o => o.Required && !o.Found);
if(notFound != null)
throw new MissingOptionException(notFound);
return stack.Reverse().ToArray();
}