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I18N-ISSUE-147: [css3-syntax] CSS escape sequences [CSS-mail]

From: Internationalization Core Working Group Issue Tracker <sysbot+tracker@w3.org>
Date: Fri, 20 Jan 2012 18:21:54 +0000
To: public-i18n-core@w3.org
Message-Id: <E1RoJ62-0000EO-Ua@tibor.w3.org>

I18N-ISSUE-147: [css3-syntax] CSS escape sequences [CSS-mail]

http://www.w3.org/International/track/issues/147

Raised by: Richard Ishida
On product: CSS-mail

Thread: http://lists.w3.org/Archives/Public/www-style/2012Jan/0536.html

From: Mathias Bynens <mathias@qiwi.be>
Date: Thu, 12 Jan 2012 11:35:48 +0100

http://www.w3.org/TR/css3-syntax/#characters defines CSS escape
sequences of the form `\000026` or `\26 `, both of which decode to
`&`.

WebKit browsers don’t support this syntax for characters outside the
BMP: https://bugs.webkit.org/show_bug.cgi?id=76152 For example,
`\1d306 ` or `\01d306` are supposed to be escape sequences for the
“tetragram for centre” symbol (U+1D306), but they don’t work in
WebKit.

There seems to be another way to escape these characters, namely by
breaking them up in UTF-16 code units: `\d834\df06 `. All browsers
except Gecko (https://bugzilla.mozilla.org/show_bug.cgi?id=717529)
seem to support this, even though this isn’t mentioned in the spec.

Should the spec be changed to reflect reality?
Received on Friday, 20 January 2012 18:22:03 UTC

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