From: Guyzmo <guyzmo+notmuch@m0g.net>
Date: Wed, 13 Mar 2013 15:16:30 +0000 (+0100)
Subject: Procmail regex group reuse
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=019f5c707c225f3049a03ce97a2348f405138a41;p=notmuch-archives.git

Procmail regex group reuse
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+Date: Wed, 13 Mar 2013 16:16:30 +0100
+From: Guyzmo <guyzmo+notmuch@m0g.net>
+To: Notmuch <notmuch@notmuchmail.org>
+Subject: Procmail regex group reuse
+Message-ID: <20130313151630.GE14028@vilya.m0g.net>
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+
+Hello,
+
+    I have looked over that usage pattern over the procmail doc and
+mailing lists for some time now, and it seems no one ever asked the
+question:
+
+    Would it be possible to reuse a part of the match regexp in procmail
+so it can be reused in the action part of the rule. Something like the
+following:
+
+--------8<----------------8<----------------8<---------------8<--------
+:0:notmuch.lock
+* .*foo\+\(\w+\)@mydomain\.tld.*
+{ 
+    TAGS="${TAGS} $1"
+}
+-------->8---------------->8---------------->8--------------->8--------
+
+    where "$1" would be the group match (like `\1` in sed). I used 
+to do it easily when I was using sup, and I really miss it now that I
+have switched to notmuch.
+
+    Maybe I shall use another mail matching program like formail, or 
+shall I write a patch for it, but I'd like first to ask here if someone 
+had the same issue, and found a solution.
+
+-- 
+Guyzmo