Namespace declaration

ChrisI · 08-21-2010, 03:41 PM

I have an existing epub with the following code:

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:svg="http://www.w3.org/2000/svg xmlns:xlink="http://www.w3.org/1999/xlink">

and later in the body:

<svg:svg height="100%" ...>
</svg:svg>

When I open the file in Sigil, the entire svg tag gets automatically deleted.

If I change the code to:

<html xmlns="http://www.w3.org/1999/xhtml">

and later in the body:

<svg xmlns="http://www.w3.org/2000/svg xmlns:xlink="http://www.w3.org/1999/xlink" height="100%" ...>
</svg>

Sigil has no problem and the image is displayed.

Forgive my ignorance, but I figured this out from scraps of other people's code, without really understanding what I am doing. Is this an issue with Sigil that I should report, or is the original epub invalid?

Valloric · 08-22-2010, 06:02 AM

Quote:

Originally Posted by ChrisI

Forgive my ignorance, but I figured this out from scraps of other people's code, without really understanding what I am doing. Is this an issue with Sigil that I should report, or is the original epub invalid?

Tidy doesn't like namespaces much. It doesn't like svg either, so I had to hack it to leave it alone.

Don't use a namespace prefix for svg elements.

I'm aware of this problem but there's little point in reporting it since I can't rewrite 40 KLOC of Tidy's unreadable C into understanding XML namespaces.

08-21-2010, 03:41 PM	#1
ChrisI Connoisseur Posts: 55 Karma: 847 Join Date: Sep 2007 Device: Kobo H2O, Libre 2	Namespace declaration I have an existing epub with the following code: <html xmlns="http://www.w3.org/1999/xhtml" xmlns:svg="http://www.w3.org/2000/svg xmlns:xlink="http://www.w3.org/1999/xlink"> and later in the body: <svg:svg height="100%" ...> </svg:svg> When I open the file in Sigil, the entire svg tag gets automatically deleted. If I change the code to: <html xmlns="http://www.w3.org/1999/xhtml"> and later in the body: <svg xmlns="http://www.w3.org/2000/svg xmlns:xlink="http://www.w3.org/1999/xlink" height="100%" ...> </svg> Sigil has no problem and the image is displayed. Forgive my ignorance, but I figured this out from scraps of other people's code, without really understanding what I am doing. Is this an issue with Sigil that I should report, or is the original epub invalid?

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