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+From: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>\r
+To: Austin Clements <amdragon@MIT.EDU>\r
+Subject: Re: [PATCH 1/6] emacs: move tag format validation to `notmuch-tag'\r
+ function\r
+In-Reply-To: <20120129213427.GF17991@mit.edu>\r
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+ <20120129213427.GF17991@mit.edu>\r
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+Date: Mon, 30 Jan 2012 02:54:32 +0400\r
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+\r
+Hi Austin.\r
+\r
+On Sun, 29 Jan 2012 16:34:27 -0500, Austin Clements <amdragon@MIT.EDU> wrote:\r
+> One philosophical nit below, but not enough to hold this up.\r
+> \r
+> Quoth Dmitry Kurochkin on Jan 28 at 8:41 am:\r
+> > Before the change, tag format validation was done in\r
+> > `notmuch-search-operate-all' function only. The patch moves it down\r
+> > to `notmuch-tag', so that all users of that function get input\r
+> > validation.\r
+> > ---\r
+> > emacs/notmuch.el | 12 ++++++------\r
+> > 1 files changed, 6 insertions(+), 6 deletions(-)\r
+> > \r
+> > diff --git a/emacs/notmuch.el b/emacs/notmuch.el\r
+> > index 72f78ed..84d7d0a 100644\r
+> > --- a/emacs/notmuch.el\r
+> > +++ b/emacs/notmuch.el\r
+> > @@ -522,6 +522,12 @@ Note: Other code should always use this function alter tags of\r
+> > messages instead of running (notmuch-call-notmuch-process \"tag\" ..)\r
+> > directly, so that hooks specified in notmuch-before-tag-hook and\r
+> > notmuch-after-tag-hook will be run."\r
+> > + ;; Perform some validation\r
+> > + (when (null tags) (error "No tags given"))\r
+> \r
+> Since this is a non-interactive function and hence is meant to be\r
+> invoked programmatically, I would expect it to accept zero tags.\r
+> Unlike the following check, this is a UI-level check and thus, I\r
+> believe, belongs in interactive functions (even if that requires a\r
+> little duplication).\r
+> \r
+\r
+Agreed. Though I would hate to add the same check to each tag\r
+operation. Perhaps this check can go to\r
+`notmuch-select-tags-with-completion'?\r
+\r
+This is not the main patch in the series. So I think I would prefer not\r
+to make v2 because of this issue. If we come up with a good (i.e. no\r
+duplication) solution, I will prepare a separate patch for it.\r
+\r
+Regards,\r
+ Dmitry\r
+\r
+> > + (mapc (lambda (tag)\r
+> > + (unless (string-match-p "^[-+][-+_.[:word:]]+$" tag)\r
+> > + (error "Tag must be of the form `+this_tag' or `-that_tag'")))\r
+> > + tags)\r
+> > (run-hooks 'notmuch-before-tag-hook)\r
+> > (apply 'notmuch-call-notmuch-process\r
+> > (append (list "tag") tags (list "--" query)))\r
+> > @@ -890,12 +896,6 @@ characters as well as `_.+-'.\r
+> > (interactive (notmuch-select-tags-with-completion\r
+> > "Operations (+add -drop): notmuch tag "\r
+> > '("+" "-")))\r
+> > - ;; Perform some validation\r
+> > - (when (null actions) (error "No operations given"))\r
+> > - (mapc (lambda (action)\r
+> > - (unless (string-match-p "^[-+][-+_.[:word:]]+$" action)\r
+> > - (error "Action must be of the form `+this_tag' or `-that_tag'")))\r
+> > - actions)\r
+> > (apply 'notmuch-tag notmuch-search-query-string actions))\r
+> > \r
+> > (defun notmuch-search-buffer-title (query)\r