option combined with value
Some options are easier to use if the option is combined with the value like the sed option -i[extension].
Other CLIs use the assignment operator like HandBrakeCLI with the option -v, --verbose[=number] Be verbose (optional argument: logging level)
Yeah, I guess the assignment operator could do the trick here. I feel similarly to this as I do to combined flags.
I don't want to limit it to an assignment operator. Just matching a prefix key to the value is what I would suggest.
optJoined @"prefix" would drop "prefix" from the text "prefix1234" and then try to unrender the remaining text "1234"
Yeah, that's even better. PRs welcome, yet again!
I'll wait until you review the other PRs