Damn, Nathan beat me to a reply. I had said basically the same in my draft.
Additionally, I added:
I'm sure the w3c folks thought about an extended syntax as well and decided
against it. it'd be interesting to dig up the minutes and/or mailing list
posts on the topic. Extending the hex sequence to add another one or two
bits of data seems the most obvious to me and I'd like to know why they
decided against it.
AND
The distinction between syntax and function is arbitrary and is merely based
on a decision about whether the parser should construct an object or should
construction an object that constructs an object. Also, we're removing the
delineation between script mode and css mode in 2.4 so the syntax for these
kind of functions is universal.
Chris
On Tue, Jan 26, 2010 at 11:38 AM, Mislav Marohnić <mislav.maroh...@gmail.com
> wrote:
> On Tue, Jan 26, 2010 at 18:21, Chris Eppstein <ch...@eppsteins.net> wrote:
>
>> If we want to extend the hex syntax, the extension should be in hex not
>> some other value:
>>
>> #fff7 and #c0c0a07f
>>
>> Thus, the alpha layer is broken into 256 discrete values between 0 and 1.
>>
>
> Ugh... That came to my mind, but I quickly discarded it. When it comes to
> opacity, I think we all think in percentages. Anyway, there's no reason why
> a value couldn't be a vector of two different number systems: complex
> numbers are real on one axis and imaginary on the other. So a color value
> could have a triple hex number as color dimension and a decimal number for
> opacity.
>
> OK, so the dot syntax seems awkward in this case:
>
> #fff.5
>
> But alternate syntaxes are possible:
>
> #fff^50%
> #...@50%
> #fff~50%
> #fff{.5}
> #fff[.5]
>
> Food for thought.
>
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