getopt: How does arraySep work?

Andre Pany andre at
Thu Jul 16 17:13:55 UTC 2020

On Thursday, 16 July 2020 at 05:03:36 UTC, Jon Degenhardt wrote:
> On Wednesday, 15 July 2020 at 07:12:35 UTC, Andre Pany wrote:
>> [...]
> An enhancement is likely to hit some corner-cases involving 
> list termination requiring choices that are not fully generic. 
> Any time a legal list value looks like a legal option. Perhaps 
> the most important case is single digit numeric options like 
> '-1', '-2'. These are legal short form options, and there are 
> programs that use them. They are also somewhat common numeric 
> values to include in command lines inputs.
> [...]

My naive implementation would be that any dash would stop the 
list of multiple values. If you want to have a value containing a 
space or a dash, you enclose it with double quotes in the 

> myapp --modelicalibs "" "" --log-level info

But you are right there a corner cases to be considered.

Kind regards

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