Marking inverted branch insets

[Scott Kostyshak]

On Wed, Oct 20, 2021 at 04:27:22PM +0300, Yuriy Skalko wrote:
> Hi all,
> 
> I'm working on the highly variative document that contains many branches
> frequently changing their states. And it is not very convenient because it
> is impossible to see immediately if current branch inset is inverted or not.
> Have you experienced such issue? What do you think about marking inverted
> insets in some way? Maybe darker/different label color? Or some additional
> symbol like "!"?

I have experienced this also. I think using a symbol is better for
accessibility reasons. Perhaps additionally changing the color could be
considered as well.

> Really I'm also thinking about more flexible system -- to connect branch
> insets to branches using logical expressions. So the branch inset could have
> logical combination of existing branches, not just branch name with optional
> inversion. For example now it is impossible to have a part of the document
> that will be outputted when any of 2 branches is active. But with logical
> expressions we will have inset "FirstBranch or SecondBranch" that solves
> this task. More complex combinations also will be possible.

I like this idea a lot. I would also be interested in a dependency
structure of branches (i.e., not variable by insets) along the lines of
"branch Q depends on branch C and branch D so to activate branch Q,
branches C and D must also be activated". I think we should think hard
about exactly what features we want and the interface. Ideally we would
extend the current functionality without making the interface much more
complex for most users who I think do not use branches in the way you
and I have in mind.

Best,
Scott
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