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+From: David Edmondson <dme@dme.org>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH 2/2 v2] emacs: Prefer '[No Subject]' to blank subjects.\r
+Date: Mon, 30 Jan 2012 10:16:01 +0000\r
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+\r
+---\r
+ emacs/notmuch-lib.el | 9 +++++++++\r
+ emacs/notmuch-print.el | 8 ++++++--\r
+ emacs/notmuch-show.el | 5 ++++-\r
+ emacs/notmuch.el | 21 +++++++++------------\r
+ 4 files changed, 28 insertions(+), 15 deletions(-)\r
+\r
+diff --git a/emacs/notmuch-lib.el b/emacs/notmuch-lib.el\r
+index c906ca7..d315f76 100644\r
+--- a/emacs/notmuch-lib.el\r
++++ b/emacs/notmuch-lib.el\r
+@@ -133,6 +133,15 @@ the user hasn't set this variable with the old or new value."\r
+ (interactive)\r
+ (kill-buffer (current-buffer)))\r
+ \r
++(defun notmuch-prettify-subject (subject)\r
++ ;; This function is used by `notmuch-search-process-filter' which\r
++ ;; requires that we not disrupt its' matching state.\r
++ (save-match-data\r
++ (if (and subject\r
++ (string-match "^[ \t]*$" subject))\r
++ "[No Subject]"\r
++ subject)))\r
++\r
+ ;;\r
+ \r
+ (defun notmuch-common-do-stash (text)\r
+diff --git a/emacs/notmuch-print.el b/emacs/notmuch-print.el\r
+index 880f96d..6653d97 100644\r
+--- a/emacs/notmuch-print.el\r
++++ b/emacs/notmuch-print.el\r
+@@ -19,6 +19,8 @@\r
+ ;;\r
+ ;; Authors: David Edmondson <dme@dme.org>\r
+ \r
++(require 'notmuch-lib)\r
++\r
+ (declare-function notmuch-show-get-prop "notmuch-show" (prop &optional props))\r
+ \r
+ (defcustom notmuch-print-mechanism 'notmuch-print-lpr\r
+@@ -58,14 +60,16 @@ Optional OUTPUT allows passing a list of flags to muttprint."\r
+ \r
+ (defun notmuch-print-ps-print (msg)\r
+ "Print a message buffer using the ps-print package."\r
+- (let ((subject (plist-get (notmuch-show-get-prop :headers msg) :Subject)))\r
++ (let ((subject (notmuch-prettify-subject\r
++ (plist-get (notmuch-show-get-prop :headers msg) :Subject))))\r
+ (rename-buffer subject t)\r
+ (ps-print-buffer)))\r
+ \r
+ (defun notmuch-print-ps-print/evince (msg)\r
+ "Preview a message buffer using ps-print and evince."\r
+ (let ((ps-file (make-temp-file "notmuch"))\r
+- (subject (plist-get (notmuch-show-get-prop :headers msg) :Subject)))\r
++ (subject (notmuch-prettify-subject\r
++ (plist-get (notmuch-show-get-prop :headers msg) :Subject))))\r
+ (rename-buffer subject t)\r
+ (ps-print-buffer ps-file)\r
+ (notmuch-print-run-evince ps-file)))\r
+diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el\r
+index 84ac624..7ea9ba2 100644\r
+--- a/emacs/notmuch-show.el\r
++++ b/emacs/notmuch-show.el\r
+@@ -1017,7 +1017,7 @@ buffer."\r
+ (notmuch-show-next-open-message))\r
+ \r
+ ;; Set the header line to the subject of the first open message.\r
+- (setq header-line-format (notmuch-show-strip-re (notmuch-show-get-subject)))\r
++ (setq header-line-format (notmuch-show-strip-re (notmuch-show-get-pretty-subject)))\r
+ \r
+ (notmuch-show-mark-read)))\r
+ \r
+@@ -1248,6 +1248,9 @@ Some useful entries are:\r
+ (defun notmuch-show-get-depth ()\r
+ (notmuch-show-get-prop :depth))\r
+ \r
++(defun notmuch-show-get-pretty-subject ()\r
++ (notmuch-prettify-subject (notmuch-show-get-subject)))\r
++\r
+ (defun notmuch-show-set-tags (tags)\r
+ "Set the tags of the current message."\r
+ (notmuch-show-set-prop :tags tags)\r
+diff --git a/emacs/notmuch.el b/emacs/notmuch.el\r
+index d4d6904..2b0a752 100644\r
+--- a/emacs/notmuch.el\r
++++ b/emacs/notmuch.el\r
+@@ -467,18 +467,14 @@ Complete list of currently available key bindings:\r
+ "Display the currently selected thread."\r
+ (interactive "P")\r
+ (let ((thread-id (notmuch-search-find-thread-id))\r
+- (subject (notmuch-search-find-subject)))\r
++ (subject (notmuch-prettify-subject (notmuch-search-find-subject))))\r
+ (if (> (length thread-id) 0)\r
+- (progn\r
+- (if (string-match "^[ \t]*$" subject)\r
+- (setq subject "[No Subject]"))\r
+-\r
+- (notmuch-show thread-id\r
+- (current-buffer)\r
+- notmuch-search-query-string\r
+- ;; Name the buffer based on the subject.\r
+- (concat "*" (truncate-string-to-width subject 30 nil nil t) "*")\r
+- crypto-switch))\r
++ (notmuch-show thread-id\r
++ (current-buffer)\r
++ notmuch-search-query-string\r
++ ;; Name the buffer based on the subject.\r
++ (concat "*" (truncate-string-to-width subject 30 nil nil t) "*")\r
++ crypto-switch)\r
+ (message "End of search results."))))\r
+ \r
+ (defun notmuch-search-reply-to-thread (&optional prompt-for-sender)\r
+@@ -854,7 +850,8 @@ non-authors is found, assume that all of the authors match."\r
+ (if (/= (match-beginning 1) line)\r
+ (insert (concat "Error: Unexpected output from notmuch search:\n" (substring string line (match-beginning 1)) "\n")))\r
+ (let ((beg (point)))\r
+- (notmuch-search-show-result date count authors subject tags)\r
++ (notmuch-search-show-result date count authors\r
++ (notmuch-prettify-subject subject) tags)\r
+ (notmuch-search-color-line beg (point) tag-list)\r
+ (put-text-property beg (point) 'notmuch-search-thread-id thread-id)\r
+ (put-text-property beg (point) 'notmuch-search-authors authors)\r
+-- \r
+1.7.8.3\r
+\r