private static ParserResult <T> MakeParserResult <T>(ParserResult <T> parserResult, ParserSettings settings)
{
return(DisplayHelp(
parserResult,
settings.HelpWriter));
}
private static ParserResult <T> HandleUnknownArguments <T>(ParserResult <T> parserResult, bool ignoreUnknownArguments)
{
return(ignoreUnknownArguments
? parserResult.MapErrors(errs => errs.Where(e => e.Tag != ErrorType.UnknownOptionError))
: parserResult);
}
/// <summary>
/// Parses the passed arguments for both verbsets and regular verbs.
/// </summary>
/// <param name="parser">The <see cref="Parser"/> to use to parse the arguments.</param>
/// <param name="args">The arguments to parse.</param>
/// <param name="verbSetTypes">The empty verb types that should be considered as verbsets while parsing.</param>
/// <param name="verbTypes">The regular verb types to parse besides the verbsets.</param>
/// <param name="onVerbsetParsed">A method that is called when a verbset verb has been parsed.</param>
/// <returns>A <see cref="ParserResult{T}"/> with either the verb type that was parsed or one or more <see cref="Error"/>s.</returns>
public static ParserResult <object> ParseSetArguments(this Parser parser,
IEnumerable <string> args,
IEnumerable <Type> verbSetTypes,
IEnumerable <Type> verbTypes,
Func <Parser, Parsed <object>, IEnumerable <string>, bool, ParserResult <object> > onVerbsetParsed)
{
IEnumerable <string> passedArgs = args ?? Enumerable.Empty <string>();
Type[] verbArray = verbTypes?.ToArray() ?? new Type[0];
// Copy parser with settings except for the HelpWriter to prevent help being written while checking for verbsets.
Parser p = new Parser(settings =>
{
settings.AutoHelp = parser.Settings.AutoHelp;
settings.AutoVersion = parser.Settings.AutoVersion;
settings.CaseInsensitiveEnumValues = parser.Settings.CaseInsensitiveEnumValues;
settings.CaseSensitive = parser.Settings.CaseSensitive;
settings.EnableDashDash = parser.Settings.EnableDashDash;
settings.IgnoreUnknownArguments = parser.Settings.IgnoreUnknownArguments;
settings.MaximumDisplayWidth = parser.Settings.MaximumDisplayWidth;
settings.ParsingCulture = parser.Settings.ParsingCulture;
});
ParserResult <object> result = null;
if (verbArray.Length > 0)
{
// Check for regular verbs first.
result = p.ParseArguments(args, verbArray);
if (result.Tag == ParserResultType.Parsed)
{
return(result);
}
}
Type[] verbSetArray = verbSetTypes?.ToArray() ?? new Type[0];
if (verbSetArray.Length > 0)
{
AnalyzedVerbSetArgument analyzed = DetermineVerbSetArgToParse(passedArgs);
string argToParse = analyzed.ArgToParse;
bool containsHelpVerb = analyzed.ContainsHelpVerb;
bool containsHelpOrVersionOption = analyzed.ContainsHelpOrVersionOption;
// Parse for verbsets.
result = p.ParseArguments(new string[] { argToParse }, verbSetArray);
if (result.Tag == ParserResultType.Parsed)
{
if (onVerbsetParsed != null)
{
IEnumerable <string> subArgsToParse = containsHelpVerb
? passedArgs.Take(1)
: containsHelpOrVersionOption
? passedArgs.Skip(1).Take(1)
: passedArgs.Skip(1);
return(onVerbsetParsed(parser, (Parsed <object>)result, subArgsToParse, containsHelpVerb || containsHelpOrVersionOption));
}
return(result);
}
}
// Both regular verbs and verbsets failed to parse.
// Combine both verb arrays and parse again using the actual parser to account for help/errors.
Type[] fullVerbArray = new Type[verbSetArray.Length + verbArray.Length];
verbSetArray.CopyTo(fullVerbArray, 0);
verbArray.CopyTo(fullVerbArray, verbSetArray.Length);
return(parser.ParseArguments(passedArgs, fullVerbArray));
}