Conformance Tests 2006-04-19T02:04:43-06:00 Tests of Atom Conformance tag:golem.ph.utexas.edu,2003:Tests/1 Copyright (c) 2006, Jacques Distler XHTML: Implicit Elements Test 2006-04-19T02:04:13-06:00 2006-04-18T02:02:13-06:00 tag:golem.ph.utexas.edu,2006:%2F~distler%2Fblog%2F1.TableTest The TBODY element. Is it there? distler http://golem.ph.utexas.edu/~distler/blog/ distler@golem.ph.utexas.edu

In HTML, the TBODY element is inferred, even if it is not present in the markup of a table. In XHTML, that is not true. What will happen here? Will your aggregator treat the following table as XHTML?

This text should not be green!

If the above text was green, then your aggregator is ignoring the explicit injunction that the content of this entry is of type="xhtml" and is, instead, treating it as tag-soup.

XHTML: Case-sensitivity and Namespace Test 2006-04-20T02:05:13-06:00 2006-04-19T02:02:13-06:00 tag:golem.ph.utexas.edu,2006:%2F~distler%2Fblog%2F1.CaseTest Another test of XHTML parsing rules distler http://golem.ph.utexas.edu/~distler/blog/ distler@golem.ph.utexas.edu

In HTML, element names are case-insensitive and namespaces are not supported. In XHTML, the opposite is true. What will happen here?

This sentence should not be bold. But this one should!

If the above text was incorrectly-bolded, then your aggregator is ignoring the explicit injunction that the content of this entry is of type="xhtml" and is, instead, treating it as tag-soup.

 MathML Test 2006-04-19T02:02:23-06:00 2006-04-18T02:02:23-06:00 tag:golem.ph.utexas.edu,2006:%2F~distler%2Fblog%2F1.MathMLTest How about embedded MathML? distler http://golem.ph.utexas.edu/~distler/blog/ distler@golem.ph.utexas.edu

If your aggregator failed the XHTML test, then you haven't a prayer of this one succeeding. That requires that your aggregator treats the content here as XHTML and that it support MathML. Thunderbird is a Mozilla product. So it has a fighting chance to pass this test. As far as I know, it fails.

∫ −∞ ∞e −ax 2 dx= π/a

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 SVG Test 2006-04-19T02:02:34-06:00 2006-04-18T02:02:33-06:00 tag:golem.ph.utexas.edu,2006:%2F~distler%2Fblog%2F1.SVGTest SVG embedded via the OBJECT element distler http://golem.ph.utexas.edu/~distler/blog/ distler@golem.ph.utexas.edu

I use SVG for figures. For those without the Adobe SVG plugin (or native SVG support in the client), I use a GIF image as a fallback. If you see the SVG image, but it's screwed up, then the native SVG support in your aggregator's rendering engine is buggy and substandard. If your aggregator's rendering engine doesn't support SVG, it should display the fallback GIF image instead. Most likely, however, you see nothing at all.

Penrose diagram for a collapsing shell of radiation
This is an SVG figure with a fallback to a GIF image.