Parse Single dash option as dashdash option

Hi everyone,

I’m trying to parse a command line (imposed, no way to change it) which are like

myexe.exe  -Url=https://blabla.com/ --AppName=val1 -e testCase  -monoapp Open -Ctx "default ctx" 

As you can see, there is a lot of different case:

• Some single dash option with a long name with space as separator
• Some single dash option with a long name with equals as separator
• Single dash option with short name with space as separator
• …

And I wasn’t able to parse it because it seems that when there is just a dash option, it mustn’t be a long name. ( I have a lot of UnknownOptionError which seem to come from that)

So I have a very simple code to test

[Verb("Open")]
public class CommandLineOptions
{
   [Option("Url", Separator = '=')]
   public string Url { get; set; }
   [Option("AppName", Separator = '=')]
   public string AppName { get; set; }
   [Option('e',"env", Separator = ' ')]
   public string Env { get; set; }
   [Option("monoapp")]
   public bool Monoapp { get; set; }
   [Option("Ctx", Separator = ' ')]
   public string Ctx { get; set; }
}

....... In another file but in the  same  assembly

static void Main(string[] args) 
{
        var commandLineOptions = new CommandLineOptionsOpen();
        var parser = new Parser(with =>
        {
            with.EnableDashDash = false; // tested as true, same result
            with.IgnoreUnknownArguments = false;
        });
        var parseResult = parser.ParseArguments<CommandLineOptionsOpen>(args).WithParsed<CommandLineOptionsOpen>(result => commandLineOptions = result);

        System.Console.WriteLine(parseResult.Tag); // NotParsed
        System.Console.WriteLine(commandLineOptions.Url); // Null like all others values

}

So I did something wrong ? There is a way to parse this command line ?

Thanks in advance for your help

[MichaeIDietrich]

I published a PR that brings the option to define the parsing behavior for command line options, whether to use single or double dashes: #767

Maybe you could consider this PR to raise the satisfaction for some of your library consumers.

[moh-hassan]

@rmunn We can plan to extend the library to support other standard commandline options beside GNU standard like:

• Using single dash only as Posix standard/ Powershell and Unity Engine.
• Using forward slash to support legacy windows standard.