From: Sean Russell <ser@...>
Date: 2007-10-04T05:57:20+09:00
Subject: REXML + RSS

Hey,

One of my upstream pushes of bug fixes for REXML was reverted by another 
maintainer because it caused some tests to fail.  Which is fine, except 
that it failed because the tests are bad.

Kou, I think these are in your area.  The problem is that the tests are 
trying to parse some invalid XML, and the changes I'm pushing include 
closing a bug in REXML where some namespace rules were being ignored.  
The namespace spec requires that all prefixes be declared:

	http://www.w3.org/TR/REC-xml-names/#ns-using
	(see "Namespace constraint: prefix declared")

and the tests:

	test_to_s(RSS::TestTaxonomy)
	test_favicon_to_s(RSS::TestImage)
	test_item_to_s(RSS::TestImage)

all use XML that contains undeclared namespaces -- for example:

	<taxo:topic rdf:about="http://meerkat.oreillynet.com/?c=cat23">
		<taxo:link>http://meerkat.oreillynet.com/?c=cat23</taxo:link>
		<dc:description>A Meerkat channel</dc:description>
		<dc:title>Data: XML</dc:title>
	</taxo:topic>

Now, on the one hand, I hate namespaces and would gladly leave this 
little requirement out of REXML; on the other hand, that would make 
REXML violate the namespace spec.  If you can argue that REXML 
shouldn't report errors that the spec says it should, then I'll revert 
that change; otherwise, the tests should be fixed.

--- SER

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