Unable to parse TimeSpan given from the FormatCommandLine

[Qrtic]

It seems like starting from version 2.7 a bug in unparsing of TimeSpan options appeared.
Version 2.6 unparsing results in unquoted timespan value (i.e. 00:01:00), whereas version's 2.7 or 2.7.82 is quoted (i.e. "00:01:00"), which couldn't be parsed.
Was it intended to be quoted and it should be properly parsed then?

Here's a sample code, which describes an issue.

var args = Parser.Default.FormatCommandLine(new Options
            {
                Interval = TimeSpan.FromMinutes(1)
            }).Split(' ');
// results in quoted TimeSpan: --interval "00:01:00"
// which throws on parsing with CommandLine.BadFormatConversionError
Parser.Default.ParseArguments<Options>(args)
    .MapResult(
        options => options, 
        errs => throw new Exception(errs.First().ToString()));

[gsscoder]

Hi, @Qrtic. First of all thank you for using this project and for taking time to open an issue.

You're right. There's a discrepancy on how the library parses and unparses System.TimeSpan value type. When parsing the value must be unquoted (see this unit test), but is formatted with quotes.

In local branch I wrote two new tests. Both to enforce the correct behaviour of parse/unparse unquoted. Obviously the unparse one fails and fixing it will solve your issue.

I'm working on it.

Just one note: if you pass to a program a quoted command line throgh the terminal, quotes are not passed to the library. Quotes persist if escaped or when passed directly to the parsing engine by code.

[Qrtic]

Great, good work, thanks a lot!