Re: [csswg-drafts] [css-fonts-4] Unclear serialisation of calc expressions in `@font-face` font-stretch/style/weight descriptors (#7964)

The CSS Working Group just discussed ``[css-fonts-4] Unclear serialisation of calc expressions in `@font-face` font-stretch/style/weight descriptors``, and agreed to the following:

* `RESOLVED: math function simplifcation for descriptors is as if they were specified properties, and descriptors with math functions use the specified-value serialization rules`

<details><summary>The full IRC log of that discussion</summary>
&lt;emeyer> TabAtkins: Fundamental issue is that simplification rules for math functions refer to resolution stages<br>
&lt;emeyer> …Those don’t apply in descriptors<br>
&lt;emeyer> …So what are the rules for serialization, and do they match?<br>
&lt;emeyer> …Apple wants serialization to be the same as CSS properties, which makes sense<br>
&lt;emeyer> …Not sure if we’re compat-constrained or not<br>
&lt;emeyer> dbaron: The one thought I have is that descriptors seem a lot like specified values<br>
&lt;emeyer> TabAtkins: Agreed<br>
&lt;emeyer> emilio: Agreed<br>
&lt;emeyer> TabAtkins: I think it’s reasonable to say we treat things the same<br>
&lt;emeyer> astearns: We could resolve on that and see if anyone complains<br>
&lt;emeyer> TabAtkins: proposed resolution: math function simplifcation for descriptors as if they were specified properties, and descriptors with math functions use the same serialization rules as properties<br>
&lt;emeyer> RESOLVED: math function simplifcation for descriptors is as if they were specified properties, and descriptors with math functions use the specified-value serialization rules<br>
</details>


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Received on Wednesday, 19 April 2023 16:39:39 UTC