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Re: [css3-writing-modes] use case for font-dependent default orientation

From: John Daggett <jdaggett@mozilla.com>
Date: Sun, 11 Sep 2011 18:38:08 -0700 (PDT)
To: Koji Ishii <kojiishi@gluesoft.co.jp>
Cc: fantasai <fantasai@inkedblade.net>, W3C Style <www-style@w3.org>
Message-ID: <44680366.3583.1315791488902.JavaMail.root@zimbra1.shared.sjc1.mozilla.com>
Koji Ishii wrote:

> U+2030 PER MILLE SIGN does not have its full-width counterpart
> and therefore it is the code point to map from East Asian
> legacy encodings for Japanese, Korean, and Simplified Chinese.
> You type "per mille" (in Japanese Kana) in Japanese Windows and
> you'll get U+2030. Word sets it upright. InDesign sets it
> upright too. So setting it sideways just breaks all existing
> documents and make HTML/CSS hard to display existing documents.
> But U+2030 is "General" punctuation, not East Asian
> punctuation, so setting it upright doesn't work for non-East
> Asian context. "Use-font" is the idea fantasai and I came up to
> solve this issue, but I'd be very happy if anyone has any other
> idea to solve this issue.

One more note.  Effectively, both apps are defining U+2030 as
upright *not* as the functional equivalent of your "use font"
category.  The logic in the spec would make this upright, your
proposed logic based on the existence of a vertical alternate
would set this sideways (since vertical alternates don't normally
exist for this codepoint).

Received on Monday, 12 September 2011 01:38:46 UTC

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