W3C home > Mailing lists > Public > www-svg@w3.org > May 2010

Re: SVG views in values lists

From: Dr. Olaf Hoffmann <Dr.O.Hoffmann@gmx.de>
Date: Fri, 7 May 2010 11:35:43 +0200
To: www-smil@w3.org, www-svg@w3.org
Message-Id: <201005071135.44313.Dr.O.Hoffmann@gmx.de>
Jack Jansen:
> Olaf,
> from the SMIL Animation side of the picture escaping can be done with
> percent-encoding. But that leaves the question of when the SVG renderer
> will decode the percent escapes. The URI definition
> <http://tools.ietf.org/html/rfc3986#section-2.4> suggests that it is done
> after splitting the URL on delims and subdelims, so that would mean it
> would be too late.

This was my impression too, because it appears within the part of the
fragment identifier.
Because this is presumably the only case, where such a conflict appears
in SVG, the SVG-WG could add some hint for authors and implementors
for this case either already to the SVG 1.1 second edition, as a proposed
errata or at least to an new version ...  

>
> In SMIL there may be a workaround using SMIL State, but I don't think
> that's allowed in SVG. And, indeed, in SMIL the href attribute isn't
> animatable (but it may contain SMIL State {attribute value template}
> constructs). But in SMIL you could also break open the values animation
> into a sequence of <set> animations.
>

Because for an arbitrary use of SMIL animation the appearence of a
semicolon within a values list item cannot be excluded (not just in IRIs), 
it might be a good idea, that the SMIL animation chapter defines how to 
escape a conflicting semicolon in general.
Unfortunately I did not discover this before SMIL3 became a recommendation ...


Olaf
Received on Friday, 7 May 2010 09:40:18 GMT

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