Parser constructor is missing overload with ParserSettings argument

[DrPepperBianco]

I wanted to write this code, because this seems to be the most intuitiv way:

  ParserSettings settings = new()
  {
      AutoHelp = true,
      AutoVersion = true,
      CaseInsensitiveEnumValues = true,
      CaseSensitive = false,
      IgnoreUnknownArguments = true,
      ParsingCulture = System.Globalization.CultureInfo.InvariantCulture,
  };
  Parser parser = new(settings);

But it doesn't work, because Parser doesn't have constructor with ParserSettings argument.

This also doesn't work:

Parser parser = new() { Settings = settings };

because Settings is read-only.

So, there should be this constructor overload to initialize Parser with existing settings.

[mdelz]

The constructor accepts a delegate to configure your settings.

using CommandLine;

Parser parser = new Parser(settings =>
{
    settings.AutoHelp = true;
    settings.AutoVersion = true;
    settings.CaseInsensitiveEnumValues = true;
    settings.CaseSensitive = false;
    settings.IgnoreUnknownArguments = true;
    settings.ParsingCulture = System.Globalization.CultureInfo.InvariantCulture;
});

You could just pass a reference to a function so that you don't have to write it multiple times.

using CommandLine;

void ConfigureParserSettings(ParserSettings settings)
{
    settings.AutoHelp = true;
    settings.AutoVersion = true;
    settings.CaseInsensitiveEnumValues = true;
    settings.CaseSensitive = false;
    settings.IgnoreUnknownArguments = true;
    settings.ParsingCulture = System.Globalization.CultureInfo.InvariantCulture;
}

Parser parser = new Parser(ConfigureParserSettings);

[boseca]

If you enable AutoHelp most likely you want to see the output in console. For that you need to set the HelpWriter.

using CommandLine;

void ConfigureParserSettings(ParserSettings settings)
{
    settings.AutoHelp = true;
    settings.AutoVersion = true;
    settings.CaseInsensitiveEnumValues = true;
    settings.CaseSensitive = false;
    settings.IgnoreUnknownArguments = true;
    settings.ParsingCulture = System.Globalization.CultureInfo.InvariantCulture;
    settings.HelpWriter = Console.Error;
}

Parser parser = new Parser(ConfigureParserSettings);