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Re: [css3-syntax] Null bytes and U+0000

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Sat, 6 Oct 2012 09:36:17 -0700
Message-ID: <CAAWBYDD86Nsx3U=1gYxhBELLrnKQgRucsO5jfA+9FwssecxkmA@mail.gmail.com>
To: Simon Sapin <simon.sapin@kozea.fr>
Cc: WWW Style <www-style@w3.org>
On Sat, Oct 6, 2012 at 3:39 AM, Simon Sapin <simon.sapin@kozea.fr> wrote:
> Hi,
>
> CSS 2.1 mentions in ยง4.1.3:
>
>> It is undefined in CSS 2.1 what happens if a style sheet does
>> contain a character with Unicode codepoint zero.
>
> However, U+0000 is not mentioned at all in css3-syntax (apart from being
> non-printable.) I think that css3-syntax as it stands requires
> implementation to handle U+0000 like any other code point.
>
> Can this be problematic for implementations where the null byte is a string
> terminator? Should we allow them to use U+FFFD REPLACEMENT CHARACTER
> instead, where they should have U+0000 but can not? For example for a zero
> hexadecimal escape: \0

Yes, I'm planning to do some testing of UAs to see what their handling of \0 is.

~TJ
Received on Saturday, 6 October 2012 16:37:05 GMT

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