From: Ken Hornstein <kenh@pobox.com>
Date: Wed, 20 Feb 2013 17:01:05 +0000 (-0500)
Subject: Support callbacks into the format engine.  This is so we can add in proper
X-Git-Url: https://diplodocus.org/git/nmh/commitdiff_plain/59620a0948c8b5a2782400580d1487fb4b9b8d39?hp=59620a0948c8b5a2782400580d1487fb4b9b8d39

Support callbacks into the format engine.  This is so we can add in proper
hooks for %(formataddr), %(concataddr), and (eventually) tracing.
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