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Re: [csswg-drafts] [fonts-4] @font-palette-values uses illegal integer descriptor names

From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org>
Date: Mon, 19 Jun 2017 20:27:34 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-309564000-1497904053-sysbot+gh@w3.org>
I didn't suggest "requiring prefixing these numbers with 0". That would indeed be crazy.

I'm saying that, *if* we change Syntax to allow integer declaration names, we need to answer the question of what this means:

```
@font-palette-values foo {
  1: blue;
  01: red;
}
```

Is the second one illegal? (It would be very difficult/weird to make it illegal.)  If they're both legal, do they represent the same descriptor, or different ones?  (For the same reason, difficult/weird to make them different descriptors.)  If they're the same descriptor, it seems possibly confusing to authors that two declarations with different names written down are actually the same; in all existing declarations, the names are compared codepoint-by-codepoint, possibly with ASCII case-folding.

I'm not necessarily opposed to this, but we do need to define it one way or another in Syntax.  Or we can define the names to be `index-1`/etc, making the names more descriptive and removing the need for any additional changes in Syntax and browser parsers.

-- 
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Received on Monday, 19 June 2017 20:27:40 UTC

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