public (CommandTree tree, ILookup <string, string> remaining) Parse(IEnumerable <string> args)
{
var tokens = Tokenizer.Tokenize(args);
var context = new CommandTreeParserContext();
var result = (CommandTree)null;
if (tokens.Count > 0)
{
var token = tokens.Current;
if (token.TokenType != Token.Type.String)
{
if (_help != null)
{
if (_help.ShortName?.Equals(token.Value, StringComparison.Ordinal) == true ||
_help.LongName?.Equals(token.Value, StringComparison.Ordinal) == true)
{
// Show help
return(null, context.GetRemainingArguments());
}
}
throw new CommandAppException($"Unexpected option '{token.Value}'.");
}
result = ParseCommand(context, _configuration, null, tokens);
}
return(result, context.GetRemainingArguments());
}
