public void Parse(string[] args)
{
var first = args.FirstOrDefault() ?? string.Empty;
try
{
var descriptors = CommandDescriptor.GetMemberDescriptors(this.Instance).ToArray();
var parser = new ParseDescriptor(descriptors, args);
parser.SetValue(this.Instance);
}
catch (Exception e)
{
if (first == string.Empty)
{
throw new CommandParseException(CommandParseError.Empty, args, true, e);
}
if (first == this.HelpName)
{
throw new CommandParseException(CommandParseError.Help, args, true, e);
}
if (first == this.VersionName)
{
throw new CommandParseException(CommandParseError.Version, args, true, e);
}
throw e;
}
}
protected virtual void PrintUsage(CommandUsage usage)
{
var descriptors = CommandDescriptor.GetMemberDescriptors(this);
var printer = new CommandMemberUsagePrinter(this.ExecutionName, this, this.Aliases)
{
Usage = usage,
IsAnsiSupported = this.IsAnsiSupported
};
printer.Print(this.Out, descriptors.ToArray());
}
private string[] GetCompletion(ICommand item, string[] args, string find)
{
if (item is ICommandCompletor completor)
{
var members = CommandDescriptor.GetMemberDescriptors(item);
var context = CommandCompletionContext.Create(item, members, args, find);
if (context is CommandCompletionContext completionContext)
{
var completion = completor.GetCompletions(completionContext);
if (completion != null)
{
return(completion);
}
}
else if (context is string[] completions)
{
return(completions);
}
}
return(null);
}
protected CommandMemberDescriptor GetDescriptor(string propertyName)
{
return(CommandDescriptor.GetMemberDescriptors(this)[propertyName]);
}
