W3C home > Mailing lists > Public > public-html@w3.org > October 2007

Re: SVG in text/html

From: Simon Pieters <simonp@opera.com>
Date: Tue, 16 Oct 2007 13:10:42 +0200
To: "Henri Sivonen" <hsivonen@iki.fi>, "Doug Schepers" <schepers@w3.org>
Cc: www-svg <www-svg@w3.org>, public-cdf@w3.org, "public-html@w3.org" <public-html@w3.org>
Message-ID: <op.t0aen4waidj3kv@hp-a0a83fcd39d2.belkin>

On Tue, 16 Oct 2007 12:37:15 +0200, Henri Sivonen <hsivonen@iki.fi> wrote:

>> Most tools do include XML prologs and DOCTYPES in their SVG output...  
>> what affect will this have on a whole-file copy-paste into HTML, in  
>> terms of parsing?
> You can't paste an XML declaration or a DOCTYPE in the middle of an  
> XHTML+SVG document, so from the conformance point of view I don't think  
> it is necessary to allow them to be pasted in the middle of text/html.  
> As for what should happen if you paste them in nonetheless, I think the  
> current behavior of the HTML5 parsing algorithm is reasonable: the XML  
> declaration turns into a comment node and the doctype gets dropped.

To elaborate further: if the doctype had an internal subset, then the  
doctype would end at the first >, effectively resulting in the characters  
"]>" being shown on the page.

Entities would not be expanded. However, that's not a problem so long as  
entities are only used for namespace declarations, since xmlns and xmlns:*  
attributes are meaningless under Henri's proposal.

Simon Pieters
Opera Software
Received on Tuesday, 16 October 2007 11:11:12 UTC

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