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+ Sun, 29 Jan 2012 21:12:06 -0800 (PST)\r
+From: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>\r
+To: Austin Clements <amdragon@MIT.EDU>\r
+Subject: Re: [PATCH v2 03/13] emacs: make "+" and "-" tagging operations in\r
+ notmuch-search more robust\r
+In-Reply-To: <20120130044806.GM17991@mit.edu>\r
+References: <1327725684-5887-1-git-send-email-dmitry.kurochkin@gmail.com>\r
+ <1327890382-548-1-git-send-email-dmitry.kurochkin@gmail.com>\r
+ <1327890382-548-4-git-send-email-dmitry.kurochkin@gmail.com>\r
+ <20120130044806.GM17991@mit.edu>\r
+User-Agent: Notmuch/0.11+139~gd9b7cab (http://notmuchmail.org) Emacs/23.3.1\r
+ (x86_64-pc-linux-gnu)\r
+Date: Mon, 30 Jan 2012 09:10:56 +0400\r
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+\r
+On Sun, 29 Jan 2012 23:48:06 -0500, Austin Clements <amdragon@MIT.EDU> wrote:\r
+> Looking good. Just a few small points below.\r
+> \r
+> Quoth Dmitry Kurochkin on Jan 30 at 6:26 am:\r
+> > Before the change, "+" and "-" tagging operations in notmuch-search\r
+> > view accepted only a single tag. The patch makes them use the\r
+> > recently added `notmuch-read-tag-changes' function (renamed\r
+> > `notmuch-select-tags-with-completion'), which allows to enter multiple\r
+> > tags with "+" and "-" prefixes. So after the change, "+" and "-"\r
+> > bindings in notmuch-search view allow to both add and remove multiple\r
+> > tags. The only difference between "+" and "-" is the minibuffer\r
+> > initial input ("+" and "-" respectively).\r
+> > ---\r
+> > emacs/notmuch.el | 164 +++++++++++++++++++++++++++---------------------------\r
+> > 1 files changed, 82 insertions(+), 82 deletions(-)\r
+> > \r
+> > diff --git a/emacs/notmuch.el b/emacs/notmuch.el\r
+> > index ff46617..90b594c 100644\r
+> > --- a/emacs/notmuch.el\r
+> > +++ b/emacs/notmuch.el\r
+> > @@ -76,38 +76,57 @@ For example:\r
+> > (defvar notmuch-query-history nil\r
+> > "Variable to store minibuffer history for notmuch queries")\r
+> > \r
+> > -(defun notmuch-tag-completions (&optional prefixes search-terms)\r
+> > - (let ((tag-list\r
+> > - (split-string\r
+> > - (with-output-to-string\r
+> > - (with-current-buffer standard-output\r
+> > - (apply 'call-process notmuch-command nil t\r
+> > - nil "search-tags" search-terms)))\r
+> > - "\n+" t)))\r
+> > - (if (null prefixes)\r
+> > - tag-list\r
+> > - (apply #'append\r
+> > - (mapcar (lambda (tag)\r
+> > - (mapcar (lambda (prefix)\r
+> > - (concat prefix tag)) prefixes))\r
+> > - tag-list)))))\r
+> > +(defun notmuch-tag-completions (&optional search-terms)\r
+> > + (split-string\r
+> > + (with-output-to-string\r
+> > + (with-current-buffer standard-output\r
+> > + (apply 'call-process notmuch-command nil t\r
+> > + nil "search-tags" search-terms)))\r
+> > + "\n+" t))\r
+> > \r
+> > (defun notmuch-select-tag-with-completion (prompt &rest search-terms)\r
+> > - (let ((tag-list (notmuch-tag-completions nil search-terms)))\r
+> > + (let ((tag-list (notmuch-tag-completions search-terms)))\r
+> > (completing-read prompt tag-list)))\r
+> > \r
+> > -(defun notmuch-select-tags-with-completion (prompt &optional prefixes &rest search-terms)\r
+> > - (let ((tag-list (notmuch-tag-completions prefixes search-terms))\r
+> > - (crm-separator " ")\r
+> > - ;; By default, space is bound to "complete word" function.\r
+> > - ;; Re-bind it to insert a space instead. Note that <tab>\r
+> > - ;; still does the completion.\r
+> > - (crm-local-completion-map\r
+> > - (let ((map (make-sparse-keymap)))\r
+> > - (set-keymap-parent map crm-local-completion-map)\r
+> > - (define-key map " " 'self-insert-command)\r
+> > - map)))\r
+> > - (delete "" (completing-read-multiple prompt tag-list))))\r
+> > +(defun notmuch-read-tag-changes (&optional initial-input &rest search-terms)\r
+> > + (let* ((all-tag-list (notmuch-tag-completions))\r
+> > + (add-tag-list (mapcar (apply-partially 'concat "+") all-tag-list))\r
+> > + (remove-tag-list (mapcar (apply-partially 'concat "-")\r
+> > + (if (null search-terms)\r
+> > + all-tag-list\r
+> > + (notmuch-tag-completions search-terms))))\r
+> > + (tag-list (append add-tag-list remove-tag-list))\r
+> > + (crm-separator " ")\r
+> > + ;; By default, space is bound to "complete word" function.\r
+> > + ;; Re-bind it to insert a space instead. Note that <tab>\r
+> > + ;; still does the completion.\r
+> > + (crm-local-completion-map\r
+> > + (let ((map (make-sparse-keymap)))\r
+> > + (set-keymap-parent map crm-local-completion-map)\r
+> > + (define-key map " " 'self-insert-command)\r
+> > + map)))\r
+> > + (delete "" (completing-read-multiple "Tags (+add -drop): "\r
+> > + tag-list nil nil initial-input))))\r
+> > +\r
+> > +(defun notmuch-update-tags (tags tag-changes)\r
+> > + "Return a copy of TAGS with additions and removals from TAG-CHANGES.\r
+> > +\r
+> > +TAG-CHANGES must be a list of tags names, each prefixed with\r
+> > +either a \"+\" to indicate the tag should be added to TAGS if not\r
+> > +present or a \"-\" to indicate that the tag should be removed\r
+> > +from TAGS if present."\r
+> > + (let ((result-tags (copy-sequence tags)))\r
+> > + (dolist (tag-change tag-changes)\r
+> > + (unless (string= tag-change "")\r
+> \r
+> This function should give the "must be of the form" error for empty\r
+> strings, rather than silently ignoring them. It turns out\r
+> `string-to-char' on an empty string is fine (it returns 0, which will\r
+> trigger the error), but `substring' isn't. Perhaps move the unless\r
+> into the let before, like\r
+> (let ((op (string-to-char tag-change))\r
+> (tag (unless (string= tag-change "") (substring tag-change 1))))\r
+> \r
+\r
+done\r
+\r
+> > + (let ((op (string-to-char tag-change))\r
+> > + (tag (substring tag-change 1)))\r
+> > + (case op\r
+> > + (?+ (unless (member tag result-tags)\r
+> > + (push tag result-tags)))\r
+> > + (?- (setq result-tags (delete tag result-tags)))\r
+> > + (otherwise\r
+> > + (error "Changed tag must be of the form `+this_tag' or `-that_tag'"))))))\r
+> > + (sort result-tags 'string<)))\r
+> > \r
+> > (defun notmuch-foreach-mime-part (function mm-handle)\r
+> > (cond ((stringp (car mm-handle))\r
+> > @@ -447,6 +466,10 @@ Complete list of currently available key bindings:\r
+> > "Return a list of threads for the current region"\r
+> > (notmuch-search-properties-in-region 'notmuch-search-thread-id beg end))\r
+> > \r
+> > +(defun notmuch-search-find-thread-id-region-search (beg end)\r
+> > + "Return a search string for threads for the current region"\r
+> > + (mapconcat 'identity (notmuch-search-find-thread-id-region beg end) " or "))\r
+> > +\r
+> > (defun notmuch-search-find-authors ()\r
+> > "Return the authors for the current thread"\r
+> > (get-text-property (point) 'notmuch-search-authors))\r
+> > @@ -590,74 +613,53 @@ the messages that were tagged"\r
+> > (forward-line 1))\r
+> > output)))\r
+> > \r
+> > -(defun notmuch-search-add-tag-thread (tag)\r
+> > - (notmuch-search-add-tag-region tag (point) (point)))\r
+> > +(defun notmuch-search-tag-thread (&rest tags)\r
+> \r
+> Maybe "tag-changes" instead of "tags" for this and\r
+> notmuch-search-tag-region?\r
+> \r
+\r
+This should also be changed in `notmuch-search-tag-all' and\r
+`notmuch-tag' (which involved docstring changes), so I will do this in a\r
+separate patch.\r
+\r
+Regards,\r
+ Dmitry\r
+\r
+> > + "Change tags for the currently selected thread.\r
+> > \r
+> > -(defun notmuch-search-add-tag-region (tag beg end)\r
+> > - (let ((search-id-string (mapconcat 'identity (notmuch-search-find-thread-id-region beg end) " or ")))\r
+> > - (notmuch-tag search-id-string (concat "+" tag))\r
+> > - (save-excursion\r
+> > - (let ((last-line (line-number-at-pos end))\r
+> > - (max-line (- (line-number-at-pos (point-max)) 2)))\r
+> > - (goto-char beg)\r
+> > - (while (<= (line-number-at-pos) (min last-line max-line))\r
+> > - (notmuch-search-set-tags (delete-dups (sort (cons tag (notmuch-search-get-tags)) 'string<)))\r
+> > - (forward-line))))))\r
+> > +See `notmuch-search-tag-region' for details."\r
+> > + (apply 'notmuch-search-tag-region (point) (point) tags))\r
+> > \r
+> > -(defun notmuch-search-remove-tag-thread (tag)\r
+> > - (notmuch-search-remove-tag-region tag (point) (point)))\r
+> > +(defun notmuch-search-tag-region (beg end &rest tags)\r
+> > + "Change tags for threads in the given region.\r
+> > \r
+> > -(defun notmuch-search-remove-tag-region (tag beg end)\r
+> > - (let ((search-id-string (mapconcat 'identity (notmuch-search-find-thread-id-region beg end) " or ")))\r
+> > - (notmuch-tag search-id-string (concat "-" tag))\r
+> > +TAGS is a list of tag operations for `notmuch-tag'. The tags are\r
+> > +added or removed for all threads in the region from BEG to END."\r
+> > + (let ((search-string (notmuch-search-find-thread-id-region-search beg end)))\r
+> > + (apply 'notmuch-tag search-string tags)\r
+> > (save-excursion\r
+> > (let ((last-line (line-number-at-pos end))\r
+> > (max-line (- (line-number-at-pos (point-max)) 2)))\r
+> > (goto-char beg)\r
+> > (while (<= (line-number-at-pos) (min last-line max-line))\r
+> > - (notmuch-search-set-tags (delete tag (notmuch-search-get-tags)))\r
+> > + (notmuch-search-set-tags\r
+> > + (notmuch-update-tags (notmuch-search-get-tags) tags))\r
+> > (forward-line))))))\r
+> > \r
+> > -(defun notmuch-search-add-tag (tag)\r
+> > - "Add a tag to the currently selected thread or region.\r
+> > -\r
+> > -The tag is added to all messages in the currently selected thread\r
+> > -or threads in the current region."\r
+> > - (interactive\r
+> > - (list (notmuch-select-tag-with-completion "Tag to add: ")))\r
+> > - (save-excursion\r
+> > - (if (region-active-p)\r
+> > - (let* ((beg (region-beginning))\r
+> > - (end (region-end)))\r
+> > - (notmuch-search-add-tag-region tag beg end))\r
+> > - (notmuch-search-add-tag-thread tag))))\r
+> > -\r
+> > -(defun notmuch-search-remove-tag (tag)\r
+> > - "Remove a tag from the currently selected thread or region.\r
+> \r
+> It's great to see all of this old copy-pasted code go away!\r
+> \r
+> > +(defun notmuch-search-tag (&optional initial-input)\r
+> > + "Change tags for the currently selected thread or region."\r
+> > + (interactive)\r
+> > + (let* ((beg (if (region-active-p) (region-beginning) (point)))\r
+> > + (end (if (region-active-p) (region-end) (point)))\r
+> > + (search-string (notmuch-search-find-thread-id-region-search beg end))\r
+> > + (tags (notmuch-read-tag-changes initial-input search-string)))\r
+> > + (apply 'notmuch-search-tag-region beg end tags)))\r
+> > +\r
+> > +(defun notmuch-search-add-tag ()\r
+> > + "Same as `notmuch-search-tag' but sets initial input to '+'."\r
+> > + (interactive)\r
+> > + (notmuch-search-tag "+"))\r
+> > \r
+> > -The tag is removed from all messages in the currently selected\r
+> > -thread or threads in the current region."\r
+> > - (interactive\r
+> > - (list (notmuch-select-tag-with-completion\r
+> > - "Tag to remove: "\r
+> > - (if (region-active-p)\r
+> > - (mapconcat 'identity\r
+> > - (notmuch-search-find-thread-id-region (region-beginning) (region-end))\r
+> > - " ")\r
+> > - (notmuch-search-find-thread-id)))))\r
+> > - (save-excursion\r
+> > - (if (region-active-p)\r
+> > - (let* ((beg (region-beginning))\r
+> > - (end (region-end)))\r
+> > - (notmuch-search-remove-tag-region tag beg end))\r
+> > - (notmuch-search-remove-tag-thread tag))))\r
+> > +(defun notmuch-search-remove-tag ()\r
+> > + "Same as `notmuch-search-tag' but sets initial input to '-'."\r
+> > + (interactive)\r
+> > + (notmuch-search-tag "-"))\r
+> > \r
+> > (defun notmuch-search-archive-thread ()\r
+> > "Archive the currently selected thread (remove its \"inbox\" tag).\r
+> > \r
+> > This function advances the next thread when finished."\r
+> > (interactive)\r
+> > - (notmuch-search-remove-tag-thread "inbox")\r
+> > + (notmuch-search-tag-thread "-inbox")\r
+> > (notmuch-search-next-thread))\r
+> > \r
+> > (defvar notmuch-search-process-filter-data nil\r
+> > @@ -893,9 +895,7 @@ will prompt for tags to be added or removed. Tags prefixed with\r
+> > Each character of the tag name may consist of alphanumeric\r
+> > characters as well as `_.+-'.\r
+> > "\r
+> > - (interactive (notmuch-select-tags-with-completion\r
+> > - "Operations (+add -drop): notmuch tag "\r
+> > - '("+" "-")))\r
+> > + (interactive (notmuch-read-tag-changes))\r
+> > (apply 'notmuch-tag notmuch-search-query-string actions))\r
+> > \r
+> > (defun notmuch-search-buffer-title (query)\r