Formal syntax doesn't show values from other spces

[OnkarRuikar]

Summary

Formal syntax on CSS sizing property width, max-width, min-width etc. pages do not accumulate values from all the specs.

URL

https://developer.mozilla.org/en-US/docs/Web/CSS/width#formal_syntax

Reproduction steps

1. Open page https://developer.mozilla.org/en-US/docs/Web/CSS/width#formal_syntax
2. Observe the Formal Syntax section
3. Then observe BCD table at the bottom
4. The BCD table lists values like stretch and anchor-size() which are not there in the Formal Syntax.

Expected behavior

In sizing properties cases, the formal syntaxes should accumulate value syntaxes from all the spec webref jsons:

• css-sizing
• css-sizing-4
• css-anchor-position-1

Also, in the case of all other feature syntaxes, accumulate value syntaxes from all the available specs jsons.

Actual behavior

The Formal Syntax section shows only the syntax from css-sizing.json.

Anything else?

I've raised an issue in Webref to map sizing properties to the anchor-size() value.

Validations

• I have read the Community Participation Guidelines.
• I have verified that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• I have checked that this is a concrete bug. For Q&A open a GitHub Discussion.

[caugner]

Good catch, we should show all values, such as stretch for width, but we're holding off on fixing this until rari is integrated in yari, which replaces the current CSSSyntax macro implementation.