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From: Devin Jeanpierre <jeanpierreda@gmail.com>
Date: Tue, 26 Feb 2013 00:53:33 -0500
Subject: Re: Correct handling of case in unicode and regexps
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Xref: csiph.com comp.lang.python:39932

I found the following resource, which was most helpful and
interesting: a specification of how unicode regular expressions should
work: http://unicode.org/reports/tr18/

I'm posting it here for the historical record ;)

-- Devin