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Re: [csswg-drafts] [css-fonts] Consider specifying UA should not perform system fallback for Unicode PUA

From: Chris Lilley via GitHub <sysbot+gh@w3.org>
Date: Mon, 29 Jan 2018 18:10:16 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-361334336-1517249415-sysbot+gh@w3.org>
> The background for this proposal is that the PUA semantics are defined to be custom to the font - using system wide fallback for them is highly unlikely to return meaningful results to avoid .notdef's.

Mostly, yes (there are some exceptions, like [CSUR](http://www.evertype.com/standards/csur/)).

> the semantics of codepoints in PUA are intentionally undefined

They should be, yes (CSUR is an _intentionally informal_ arrangement for developers of fonts for conlangs)

> https://drafts.csswg.org/css-fonts/#char-handling-issues

Right, agree this actually covers this already. 

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Received on Monday, 29 January 2018 18:10:26 UTC

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