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Re: [csswg-drafts] [css-text-3] Insufficient normative reference to UAX14 for the ID line breaking class

From: Florian Rivoal via GitHub <sysbot+gh@w3.org>
Date: Mon, 31 Oct 2016 14:13:41 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-257304258-1477923219-sysbot+gh@w3.org>
If "ID must be honored" is acceptable, I'd be OK with that.

I was worried that it wouldn't be, because the rules in UAX14 that 
pertains to ID characters are not well contained, and defining the 
interaction between ID characters and other types of characters when 
they're adjacent pulls in a large part of the rest of the spec, and at
 the same time, that doesn't resolve all ambiguities, and yet still 
defines a specific behavior for kinsoku-shori, which is something we 
were trying to leave partly undefined, partly influenced by the 
line-break property.

The text I proposed was an attempt to extract from UAX14 the key part 
of what makes line breaking for ID characters work the way it should, 
and defer the rest to the `line-break` property (which itself leaves 
large parts intentionally undefined).

But if you think that's overkill or fragile, and that we can just 
point to UAX14 and require that ID line breaking be honored, then 

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