Re: [PATCH 1/4] emacs: new customization variable to exclude "deleted" messages from...

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+Date: Sun, 8 Jan 2012 23:31:01 -0500\r
+From: Austin Clements <amdragon@MIT.EDU>\r
+To: Jameson Graef Rollins <jrollins@finestructure.net>,\r
+       Aaron Ecay <aaronecay@gmail.com>\r
+Subject: Re: [PATCH 1/4] emacs: new customization variable to exclude\r
+       "deleted" messages from search\r
+Message-ID: <20120109043101.GH20796@mit.edu>\r
+References: <1325975294-646-1-git-send-email-jrollins@finestructure.net>\r
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+\r
+Quoth myself on Jan 08 at  8:49 pm:\r
+> > > @@ -927,6 +932,9 @@ The optional parameters are used as follows:\r
+> > >      (set 'notmuch-search-target-thread target-thread)\r
+> > >      (set 'notmuch-search-target-line target-line)\r
+> > >      (set 'notmuch-search-continuation continuation)\r
+> > > +    (when (and notmuch-search-exclude-deleted\r
+> > > +               (not (string-match "tag:deleted[ )]*" query)))\r
+> > \r
+> > “is:” is a synonym for “tag:” in searches – so this section of the code\r
+> > should look for it too.\r
+> \r
+> There are several other things that could also trip up this regexp.\r
+> xtag:deletedx would be falsely matched, as would a quoted phrase\r
+> containing "tag:deleted", while tag:"deleted" and tag:(deleted) would\r
+> incorrectly not be matched.  Getting this right is hard, though I'd be\r
+> happy with\r
+> \r
+>   "\\<\\(tag\\|is\\):deleted\\>"\r
+> \r
+> or maybe\r
+> \r
+>   "\\<\\(tag\\|is\\):\\(\"?\\)deleted\\>\\2"\r
+\r
+For the record, here's a More Correct (TM) version\r
+\r
+  "\\(^\\|[-+ ()]\\)\\(tag\\|is\\):\\(\"?\\)deleted\\3\\($\\|[ ()]\\)"\r
+\r
+However, as we discussed on IRC, it's probably better to fix this in\r
+the CLI/library by adding a config option for auto-excluded tags, an\r
+API to register these with the library (probably part of the query\r
+API), and to iterate over the terms in the parsed query to determine\r
+which tag exclusions should be automatically added.\r