Re: [gentoo-dev] RFC: Future EAPI version operator changes

[konsolebox]

On Sun, Nov 6, 2016 at 6:52 PM, Michał Górny <mgorny@g.o> wrote:
> Hi, everyone.
>
> Following my previous RFC wrt version operator problems, I'd like to
> start the second part of the discussion: how to improve version
> operators in a Future EAPI?
>
> I've collected various ideas on operator changes on a wiki page [1].
> I've tried to stay open-minded and cover every possibility, even though
> I doubt some of them would be even considered.
>
> I should warn you that some of the solutions are interlinked to each
> other, and you probably need to look through the whole page first
> before starting to construct an opinion. For example, specific
> solutions to most of the problems depend on whether we enable version
> ranges and in which form.
>
> I think we should start by loosely discussing the various ideas
> on the wiki page. Feel free to also point out any missing ideas
> or remarks that would be useful there.
>
> So, what are your comments?
>
> [1]:https://wiki.gentoo.org/wiki/Future_EAPI/Version_syntax_changes
>
> --
> Best regards,
> Michał Górny
> <http://dev.gentoo.org/~mgorny/>

I also like the idea of moving the operator as it's more consistent
and opens new doors to other solutions.

As for the use of operator & and |, they're quite good, but I'd prefer
the use of Gmail's style where expressions placed in () are processed
with AND, and expressions placed inside {} are processed with OR:

dev-foo/bar[>=1.3&<1.5]        dev-foo/bar(>=1.3 <1.5)
dev-foo/bar[>=1.3&<1.5&!=1.4.1]        dev-foo/bar(>=1.3 <1.5 !=1.4.1)
dev-foo/bar[<1.1|>=1.5]        dev-foo/bar{<1.1 >=1.5}
dev-foo/bar[=1.1*|=1.3*|>=1.5]        dev-foo/bar{=1.1* =1.3* >=1.5}

I find it more readable.  The former looks too compressed.

-- 
konsolebox