W3C home > Mailing lists > Public > www-style@w3.org > February 2012

Re: [css-variables] the new ED for CSS Variables

From: Chris Eppstein <chris@eppsteins.net>
Date: Fri, 17 Feb 2012 15:42:09 -0800
Message-ID: <CANyEp6WXD=e0DOr3X8gxMCm9CtaxwaCRkngUPEEKWhduemB54Q@mail.gmail.com>
To: Arron Eicholz <Arron.Eicholz@microsoft.com>
Cc: "Tab Atkins Jr." <jackalmage@gmail.com>, François REMY <fremycompany_pub@yahoo.fr>, "www-style@w3.org" <www-style@w3.org>
>From a RHS perspective, I can tell you that in 2+ years of allowing $ as a
value in stylesheets in Sass, it has not posed a single syntactic conflict
for our users.


On Fri, Feb 17, 2012 at 3:38 PM, Chris Eppstein <chris@eppsteins.net> wrote:

> Seems like you're blowing things a bit out of proportion here. Actually,
> by keeping variables in a new namespace, you diminish the expected amount
> of review and impact. As things stand, by conflating the syntax with
> properties, we should be _more_ concerned that we are introducing a
> conflict.
> Chris
> On Fri, Feb 17, 2012 at 3:26 PM, Arron Eicholz <
> Arron.Eicholz@microsoft.com> wrote:
>> On Friday, February 17, 2012 2:43 PM Chris Eppstein wrote:
>> >Variables are a new primitive. Seems justified.
>> Altering the core grammar takes a great deal of investigation. An
>> alteration to the core grammar requires us to analyze all 400+ existing,
>> proposed and suggested properties, including SVG properties, (there are
>> actually 606 by my last count, but who is keeping track). We must determine
>> if any of them have to be updated, altered or changed to account for this
>> new primitive. Don't forget to multiply all the values that all those
>> properties take and how they will be affected. This is an extensive amount
>> of work and who knows what we might miss when looking at all the values
>> that those properties take.
>> Now take into account the OM and Javascript side of things and even how
>> frameworks interact. Will a '$' interfere or makes things confusing? My
>> guess is it will, at the very least it will make things confusing. It also
>> wouldn't shock me if it broke a Javascript library somewhere.
>> In the end the cost is very high for changing the core grammar. Going
>> with 'data-' or 'var-' really doesn't have much impact in this regard and
>> would be the best solution to move things quickly.
>> --
>> Thanks,
>> Arron Eicholz
>> >
>> >On Fri, Feb 17, 2012 at 2:39 PM, Tab Atkins Jr. <jackalmage@gmail.com>
>> wrote:
>> >>On Fri, Feb 17, 2012 at 2:35 PM, Chris Eppstein <chris@eppsteins.net>
>> wrote:
>> >> What's wrong with using $?
>> >>
>> >>  :root { $accentColor: green; }
>> >>   h1 { color: $accentColor; }
>> >It violates the Core Grammar, unfortunately.  That doesn't make it
>> >impossible to do, it just means we need a pretty good justification
>> >for it.
Received on Friday, 17 February 2012 23:42:40 UTC

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