Re: [csswg-drafts] [css-values] Grammar syntax for defining excluded idents for <custom-ident> productions (#11924)

Oh, if numbers would be allowed inside the square brackets this indeed does need a prefix because otherwise providing two exceptions would be indistinguishable from a range with minimum and maximum. 

As for use cases, I gave font families as an example in the other issue (without the renaming from #13263): 
`<family-name> = <string> | <custom-ident [<generic-complete>, <generic-incomplete>]>+`

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Received on Wednesday, 28 January 2026 09:20:52 UTC