Re: @else in Media Queries

On Sat, Jun 11, 2016 at 12:54 AM, Mark Brown <mark@mercurylang.org> wrote:
> On Sat, Jun 11, 2016 at 5:42 PM, Daniel Glazman
> <daniel.glazman@disruptive-innovations.com> wrote:
>> On 11/06/2016 09:34, Sebastian Zartner wrote:
>>
>>> Coming back to this option, why is nesting the @else rule that bad? Sure, in
>>> other languages you have it outside of the first block, but it clearly
>>> connects both visually and avoids the problems of a dangling @else
>>> block.
>>
>> Because an invalid MQ would trash the whole thing including the nested
>> @else, per error handling rules...
>
> Has anyone considered something like
>
>   @switch {
>       @case C1 { ... }
>       @case C2 { ... }
>       @default { ... }      /* optional */
>   }
>
> ?

That's identical to the current proposal, just with an extra level of
nesting.  I don't believe the current proposal is error-prone enough
to justify adding an additional rule.  (People don't screw up their
if-else chains regularly in other languages.)

~TJ