W3C home > Mailing lists > Public > www-style@w3.org > October 2012

Re: Ambiguities in fill:url() / stroke:url() syntax

From: Robert O'Callahan <robert@ocallahan.org>
Date: Mon, 29 Oct 2012 10:06:44 +1300
Message-ID: <CAOp6jLbK5Kv6THR0vm4YJOPsBxtYXB=YpRWtCAK-LMBjSB=KnA@mail.gmail.com>
To: "Tab Atkins Jr." <jackalmage@gmail.com>
Cc: Dirk Schulze <dschulze@adobe.com>, www-svg <www-svg@w3.org>, www-style <www-style@w3.org>
On Mon, Oct 29, 2012 at 2:40 AM, Tab Atkins Jr. <jackalmage@gmail.com>wrote:

> In that case, as long as we're *able* to head off SVG Stacks at the
> pass, I'm cool with your alternate approach, suitably expanded to
> disallow all things that *look* like MFs in step a (that is,
> everything with an ident followed by an = sign).

Can we simplify it to just exclude =, ( and ) characters from external
resource references? That also excludes functional syntax like SVG 1.1
cooked up for svgView(). It also gives SVG Stacks users a workaround: use
identifiers such as "=bar" in their images.

How will we know if we're "able to head off SVG Stacks"? I'm not entirely
comfortable with just disabling them in Firefox without a commitment from
other browser vendors to do the same.

> By the way, if someone created an document foo.svg with a paint server
> > element whose ID is "xywh=0,0,10,10", how would your magical approach
> treat
> > url(foo.svg#xywh=0,0,10,10)? :-)
> I think SVG agreed recently (dunno if it's made it into the SVG2
> draft) that we'll restrict the syntax of fragment identifiers to
> disallow all MF-looking things from referring to elements.

I didn't know that. I don't see anything about it in the SVG2 draft. That
is important since it could interact with what we're trying to do here.

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Received on Sunday, 28 October 2012 21:07:13 UTC

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