internal ParseResult Parse(
IReadOnlyCollection <string> rawArgs,
bool isProgressive)
{
var validTokens = DefinedOptions
.FlattenBreadthFirst()
.SelectMany(o => o.Aliases)
.Distinct()
.ToArray();
var unparsedTokens = new Queue <string>(Normalize(rawArgs).Lex(validTokens));
var appliedOptions = new OptionSet <AppliedOption>();
var errors = new List <OptionError>();
var unmatchedTokens = new List <string>();
AppliedOption currentOption = null;
string arg;
while (unparsedTokens.Any())
{
arg = unparsedTokens.Dequeue();
if (arg == "--")
{
// stop parsing further args
break;
}
if (DefinedOptions.Any(o => o.HasAlias(arg)))
{
var option = appliedOptions.SingleOrDefault(o => o.HasAlias(arg));
var alreadySeen = option != null;
if (!alreadySeen)
{
option = new AppliedOption(
DefinedOptions.Single(s => s.HasAlias(arg)),
arg);
appliedOptions.Add(option);
}
if (!option.Option.IsCommand || !alreadySeen)
{
currentOption = option;
continue;
}
}
unmatchedTokens.Add(arg);
if (currentOption != null)
{
unmatchedTokens = currentOption
.TryTakeTokens(unmatchedTokens.ToArray())
.ToList();
}
}
errors.AddRange(
unmatchedTokens.Select(UnrecognizedArg));
return(new ParseResult(
this,
rawArgs,
appliedOptions,
isProgressive,
unparsedTokens,
unmatchedTokens,
errors));
}
