Consistency for tab - behavior

[TheTeXnician]

When running tab - (think of forgetting thel after it 😉) I get the following output

error: Found argument '-/' which wasn't expected, or isn't valid in this context

USAGE:
    tab [FLAGS] [OPTIONS] [--] [TAB]

For more information try --help

which I would read as an illegal action resulting in a failure. Much to my surprise, however, a tab named - is generated and switched to. tab -l then shows

Available tabs:
    -/

Would it be possible to either

• disable the error if - is a valid tab name,
• turn the error into an informational message that a tab named - was created and that maybe this wasn't what the user intended to do or
• forbid the - tab name?

Many thanks for providing this nice tool.

[austinjones]

Ah, good catch. Clap is parsing tab - as a positional argument, and tab -/ as a flag with the short name /.

I think forbidding tab names that start with a hyphen is a good idea, as even if it got past this step, the name could be shadowed by CLI flags.

I'm glad you like the tool! And thanks for the feature request :)

[austinjones]

I've implemented this in #170. I'll update & close the issue once 0.4.0 is released.

The behavior is now:

$ tab -
error: Invalid value for '<TAB>': tab name may not begin with a dash

It's still possible to define invalid tab names in YAML config, and I added #169 to help with that.

[austinjones]

Closing, v0.4.0 is released!