Since this could be both a very useful and a very harmful change, I'm posting a set of fairly short diffs to tm.com: http://twistedmatrix.com/users/moonfallen/diffs.txt If anyone thinks this patch will slow things down (possible) or break stuff (unlikely; current tests pass), I want to know that. Of course there are new tests to go with it: http://twistedmatrix.com/users/moonfallen/test_diffs.txt In particular, Woven appears to be unaffected. If I don't get any significant backlash over the weekend, this goes in. This makes the following code possible:

...

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d=microdom.parseString('<script LANGUAGE="JScript"></script>') d.documentElement.setAttribute('language', 'javascript') d.toxml() '<?xml version="1.0"?><script language="javascript"></script>'

(Note that caseInsensitive=1 and preserveCase=0 are the defaults, and always have been. They just affect attribute names now, as well as element names.)