Re: an emacs macro

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+From: Mark Walters <markwalters1009@gmail.com>\r
+To: Tom Hirschowitz <tom.hirschowitz@univ-savoie.fr>, notmuch@notmuchmail.org\r
+Subject: Re: an emacs macro\r
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+References: <87bnu7k7j3.fsf@hirscho.lama.univ-savoie.fr>\r
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+\r
+\r
+On Thu, 05 Jun 2014, Tom Hirschowitz <tom.hirschowitz@univ-savoie.fr> wrote:\r
+> Hi all, \r
+>\r
+> I'm trying to define a macro for notmuch/emacs which in show-mode would\r
+>\r
+>  - prompt the user for tags (possibly starting with "+"),\r
+>\r
+>  - tag the shown message with these tags plus an additional fixed tag,\r
+>    say "+local".\r
+>\r
+> I know next to nothing about emacs/lisp, so I tried to mimick notmuch*.el.\r
+>\r
+> Here's my most plausible attempt:\r
+>\r
+> (defun notmuch-show-move (tag-changes)\r
+>   "Add the local tag, plus possibly others, given as interactive arguments."\r
+>   (interactive (list (notmuch-read-tag-changes (notmuch-show-get-tags)\r
+>                                             "Tag message" "+")))\r
+>   (let* ((tag-changes-with-local (cons "+local" tag-changes))\r
+>       (rien (notmuch-tag (notmuch-show-get-message-id) tag-changes-with-local))\r
+>       (current-tags (notmuch-show-get-tags))\r
+>       (new-tags (notmuch-update-tags current-tags tag-changes-with-local)))\r
+>     (unless (equal current-tags new-tags)\r
+>       (notmuch-show-set-tags new-tags))))\r
+\r
+Yes this looks fine for notmuch-show. It won't work for search mode as\r
+notmuch-show- commands basically only work in notmuch-show. I would\r
+suggest copying notmuch-search-tag and tweaking it to use\r
+tag-changes-with-local (as you have done for the show version\r
+above). Something similar should work for tree-mode (ie copy\r
+notmuch-tree-tag)\r
+\r
+I think you will need separate functions for the three modes.\r
+\r
+Best wishes\r
+\r
+Mark\r