public static CommandHelp Create(
Command command,
IEnumerable <OptionValueProvider> providers = null,
Filter filter = null)
{
ImmutableArray <ArgumentItem> arguments = (command.Arguments.Any())
? HelpProvider.GetArgumentItems(command.Arguments, filter)
: ImmutableArray <ArgumentItem> .Empty;
ImmutableArray <OptionItem> options = HelpProvider.GetOptionItems(command.Options, filter);
ImmutableArray <OptionValueList> values = HelpProvider.GetOptionValues(
command.Options,
providers ?? ImmutableArray <OptionValueProvider> .Empty,
filter);
return(new CommandHelp(command, arguments, options, values));
}
public void WriteValues(IEnumerable <OptionValueList> optionValues)
{
using (IEnumerator <OptionValueList> en = optionValues.GetEnumerator())
{
if (en.MoveNext())
{
WriteStartValues();
while (true)
{
WriteTextLine(en.Current.MetaValue);
WriteValues(en.Current.Values);
if (en.MoveNext())
{
WriteLine();
}
else
{
break;
}
}
WriteEndValues();
ImmutableArray <string> expressions = HelpProvider.GetExpressionItems(optionValues);
if (!expressions.IsEmpty)
{
WriteLine();
WriteLine("Expression syntax:");
foreach (string expression in expressions)
{
Write(Options.Indent);
WriteLine(expression);
}
}
}
}
}