[Rpm-ecosystem] Triple operator for conditional shortcut - choosing the best notation

[Igor Gnatenko]

On Sun, Dec 30, 2018 at 11:57 AM Pavlina Moravcova Varekova
<pmoravco at redhat.com> wrote:
>
> Hi,
> I plan to implement "Triple operator for conditional shortcut".
> (https://github.com/rpm-software-management/rpm/issues/115.)
> There are several possibilities that can be used:
>
> %{?{condition}:true:false} and %{!?{condition}:false:true}
>
> or
>
> %{?{condition}?true:false} and %{!?{condition}?false:true}
>
> or
>
> %{?:condition:true:false}  and %{?!:condition:false:true}
>
> From the implementation point of view they are quite similar, so please does any of the notations look appropriate for you? Which of them do you prefer?

I would like to avoid more curly braces, so I personally like last
option. Though the first option is not bad too.

Second option is too complicated.

> For more details see. https://github.com/rpm-software-management/rpm/issues/115.
>
> Pavlina Moravcova Varekova
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