public abstract PresentParserState Parse(IArgumentEnumerator argumentEnumerator, OptionMap map, object options);
public static OptionMap Create(object target, ParserSettings settings)
{
var list = ReflectionHelper.RetrievePropertyList<BaseOptionAttribute>(target);
if (list == null)
{
return null;
}
var map = new OptionMap(list.Count, settings);
foreach (var pair in list)
{
if (pair.Left != null && pair.Right != null)
{
string uniqueName;
if (pair.Right.AutoLongName)
{
uniqueName = pair.Left.Name.ToLowerInvariant();
pair.Right.LongName = uniqueName;
}
else
{
uniqueName = pair.Right.UniqueName;
}
map[uniqueName] = new OptionInfo(pair.Right, pair.Left, settings.ParsingCulture);
}
}
map.RawOptions = target;
return map;
}
public static OptionMap Create(
object target,
IList<Pair<PropertyInfo, VerbOptionAttribute>> verbs,
ParserSettings settings)
{
var map = new OptionMap(verbs.Count, settings);
foreach (var verb in verbs)
{
var optionInfo = new OptionInfo(verb.Right, verb.Left, settings.ParsingCulture)
{
HasParameterLessCtor = verb.Left.PropertyType.GetConstructor(Type.EmptyTypes) != null
};
if (!optionInfo.HasParameterLessCtor && verb.Left.GetValue(target, null) == null)
{
throw new ParserException("Type {0} must have a parameterless constructor or" +
" be already initialized to be used as a verb command.".FormatInvariant(verb.Left.PropertyType));
}
map[verb.Right.UniqueName] = optionInfo;
}
map.RawOptions = target;
return map;
}
private bool TryParseHelpVerb(string[] args, object options, Pair<MethodInfo, HelpVerbOptionAttribute> helpInfo, OptionMap optionMap)
{
var helpWriter = _settings.HelpWriter;
if (helpInfo != null && helpWriter != null)
{
if (string.Compare(args[0], helpInfo.Right.LongName, GetStringComparison(_settings)) == 0)
{
// User explicitly requested help
var verb = args.FirstOrDefault();
if (verb != null)
{
var verbOption = optionMap[verb];
if (verbOption != null)
{
if (verbOption.GetValue(options) == null)
{
// We need to create an instance also to render help
verbOption.CreateInstance(options);
}
}
}
DisplayHelpVerbText(options, helpInfo, verb);
return true;
}
}
return false;
}