Re: [css-transitions] value regex for transition-property does not meet description

On Tue, Jan 16, 2018 at 1:28 PM, Dennis Heuer
<einz@verschwendbare-verweise.seinswende.de> wrote:
> Hello,
>
> take it or not but don't bother me with 'wont fix!'
>
> https://www.w3.org/TR/css-transitions-1/#propdef-transition-property
>
> Value:   none | <single-transition-property> #
> Initial: all
>
> The above doesn't mention 'all' as a valid value. Below the blue box,
> 'all' is explained to be a single-transition-property. Exactly in the
> next paragraph it is (correctly) called a 'keyword' and differed from
> single-transition-properties. This is confusing.
>
> The description below the blue box says:
>
> <'single-transition-property'> = all | <custom-ident>;
>
> A value of none means that no property will transition. Otherwise,
> a list of properties to be transitioned, or the keyword all which
> indicates that all properties are to be transitioned, is given.

What do you think is wrong here? "all" is indeed included as part of
<single-transition-property>, and so the initial value does indeed
correctly match the grammar.

It's not written as `none | all | <single-transition-property>#`
because `transition-property: color, all, background-position` is
meant to be allowed - the "all" is part of the comma-separated list,
not a totally separate grammar term that has to stand on its own, like
"none" is.

~TJ

Received on Tuesday, 16 January 2018 23:31:43 UTC