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Re: Issues arising from not reparsing

From: Ian Hickson <ian@hixie.ch>
Date: Sun, 11 Oct 2009 09:34:32 +0000 (UTC)
To: Simon Pieters <simonp@opera.com>
Cc: Henri Sivonen <hsivonen@iki.fi>, HTMLWG WG <public-html@w3.org>
Message-ID: <Pine.LNX.4.62.0910110914390.25383@hixie.dreamhostps.com>
On Tue, 6 Oct 2009, Simon Pieters wrote:
> On Mon, 05 Oct 2009 18:34:42 +0200, Simon Pieters <simonp@opera.com> wrote:
> > Proposal #3 in http://wiki.whatwg.org/wiki/CDATA_Escapes reads:
> > 
> >     For script, when in an escaped text span, set a flag after having seen
> >     "<script" followed by whitespace or slash or greater-than. "</script"
> >     followed by whitespace or slash or greater-than only closes the element
> >     if the flag is not set, and otherwise emits the text and resets the
> >     flag. Exiting an escaped text span also resets the flag.
> 
> Upon further reflection, it seems unnecessary to check the next character
> after "<script", so I've changed the proposal to read:
> 
>    For script, when in an escaped text span, set a flag after having seen
>    "<script". "</script" followed by whitespace or slash or greater-than
>    only closes the element if the flag is not set, and otherwise emits the
>    text and resets the flag. Exiting an escaped text span also resets the
>    flag.

So the proposed changes to the spec are:

 * in the Data state, while the escape flag is true, if you consume "t" 
   and the previous characters were "<scrip", then set the inner escape 
   flag to true also,

 * whenever the escape flag is set to false, also set the inner-escape 
   flag to false,

 * for "<" in the Data state, you always switch to the Tag open state, and

 * in the RCDATA/RAWTEXT bit at the top of the Close tag open state, add 
   to the end of the first paragraph "or they are but the escape flag and 
   the inner-escape flag are both true"

...?

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Sunday, 11 October 2009 09:24:15 GMT

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