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ISSUE-22 (Case-sensitive prefixes): Backwards compatibility issue with case-sensitive prefixes in RDFa 1.0 [RDFa 1.1 Core]

From: RDFa Working Group Issue Tracker <sysbot+tracker@w3.org>
Date: Tue, 4 May 2010 03:43:00 +0000 (GMT)
To: public-rdfa-wg@w3.org
Message-Id: <20100504034300.4774FDEE8C@lowblow.w3.org>

ISSUE-22 (Case-sensitive prefixes): Backwards compatibility issue with case-sensitive prefixes in RDFa 1.0 [RDFa 1.1 Core]

http://www.w3.org/2010/02/rdfa/track/issues/22

Raised by: Manu Sporny
On product: RDFa 1.1 Core

Section 7.5 item 4 indicates that prefixes, whether from @prefix or @xmlns, MUST be converted to lower case. However, XML namespace prefixes are case-sensitive. Test 0123 checks to ensure that this case sensitivity is retained in namespace mappings. I presume that this test is obsoleted by RDFa 1.1, and it's okay to break these dependencies (which were discouraged anyway).

This creates a backwards-compatibility issue with RDFa 1.0, where prefixes are case sensitive.

The RDFa Working Group must provide a resolution asserting that it is okay to break backwards compatibility with RDFa 1.0 in this manner.
Received on Tuesday, 4 May 2010 03:43:02 UTC

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