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

[css3-syntax] CSS escape sequences

State:

CLOSED

Product:

css-syntax

Raised by:

Richard Ishida

Opened on:

2012-01-20

Description:

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?

Related Actions Items:

No related actions

Related emails:

1. Review of tracker issues for best practices (Part V) (from addison@lab126.com on 2015-04-09)
2. [minutes] i18n telecon 2012-04-25 (from ishida@w3.org on 2012-05-02)
3. Re: non-support of using surrogate pairs in CSS escapes [I18N-ACTION-90] [I18N-ISSUE-147] (from mathias@qiwi.be on 2012-02-01)
4. Re: non-support of using surrogate pairs in CSS escapes [I18N-ACTION-90] [I18N-ISSUE-147] (from jackalmage@gmail.com on 2012-02-01)
5. non-support of using surrogate pairs in CSS escapes [I18N-ACTION-90] [I18N-ISSUE-147] (from addison@lab126.com on 2012-01-31)
6. [minutes] i18n telecon 2012-01-25 (from ishida@w3.org on 2012-01-25)
7. I18N-ISSUE-147: [css3-syntax] CSS escape sequences [CSS-mail] (from sysbot+tracker@w3.org on 2012-01-20)

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