[PATCH v2] emacs: Leave blank subjects alone by default.
David Edmondson
dme at dme.org
Mon Feb 6 14:48:10 PST 2012
Add `notmuch-blank-subject' to control how empty or whitespace only
subjects are treated. The default behaviour is to leave them
alone. The user can choose a string to use as a replacement.
Modify code that cannot handle blank subjects to use a fixed string.
---
Fix the non-string subject case (again, sigh).
emacs/notmuch-lib.el | 21 ++++++++++++++++++---
emacs/notmuch-print.el | 4 ++--
emacs/notmuch-show.el | 2 +-
emacs/notmuch.el | 4 ++--
4 files changed, 23 insertions(+), 8 deletions(-)
diff --git a/emacs/notmuch-lib.el b/emacs/notmuch-lib.el
index d315f76..95e3c29 100644
--- a/emacs/notmuch-lib.el
+++ b/emacs/notmuch-lib.el
@@ -67,6 +67,13 @@
:type 'boolean
:group 'notmuch-search)
+(defcustom notmuch-blank-subject nil
+ "How should subjects that are empty or whitespace only be
+treated?"
+ :type '(choice (const :tag "Leave them alone" nil)
+ (string :tag "Replacement string" "[No Subject]"))
+ :group 'notmuch)
+
;;
(defvar notmuch-search-history nil
@@ -133,13 +140,21 @@ the user hasn't set this variable with the old or new value."
(interactive)
(kill-buffer (current-buffer)))
-(defun notmuch-prettify-subject (subject)
+(defun notmuch-pretty-non-empty-subject (subject)
+ (let ((subject (notmuch-pretty-subject subject)))
+ (if (and subject
+ (string-match "^[ \t]*$" subject))
+ "no subject"
+ subject)))
+
+(defun notmuch-pretty-subject (subject)
;; This function is used by `notmuch-search-process-filter' which
;; requires that we not disrupt its' matching state.
(save-match-data
- (if (and subject
+ (if (and (stringp notmuch-blank-subject)
+ subject
(string-match "^[ \t]*$" subject))
- "[No Subject]"
+ notmuch-blank-subject
subject)))
;;
diff --git a/emacs/notmuch-print.el b/emacs/notmuch-print.el
index 6653d97..dda082a 100644
--- a/emacs/notmuch-print.el
+++ b/emacs/notmuch-print.el
@@ -60,7 +60,7 @@ Optional OUTPUT allows passing a list of flags to muttprint."
(defun notmuch-print-ps-print (msg)
"Print a message buffer using the ps-print package."
- (let ((subject (notmuch-prettify-subject
+ (let ((subject (notmuch-pretty-non-empty-subject
(plist-get (notmuch-show-get-prop :headers msg) :Subject))))
(rename-buffer subject t)
(ps-print-buffer)))
@@ -68,7 +68,7 @@ Optional OUTPUT allows passing a list of flags to muttprint."
(defun notmuch-print-ps-print/evince (msg)
"Preview a message buffer using ps-print and evince."
(let ((ps-file (make-temp-file "notmuch"))
- (subject (notmuch-prettify-subject
+ (subject (notmuch-pretty-non-empty-subject
(plist-get (notmuch-show-get-prop :headers msg) :Subject))))
(rename-buffer subject t)
(ps-print-buffer ps-file)
diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 7469e2e..4a23cc2 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -1261,7 +1261,7 @@ Some useful entries are:
(notmuch-show-get-prop :depth))
(defun notmuch-show-get-pretty-subject ()
- (notmuch-prettify-subject (notmuch-show-get-subject)))
+ (notmuch-pretty-subject (notmuch-show-get-subject)))
(defun notmuch-show-set-tags (tags)
"Set the tags of the current message."
diff --git a/emacs/notmuch.el b/emacs/notmuch.el
index cd04ffd..aab6946 100644
--- a/emacs/notmuch.el
+++ b/emacs/notmuch.el
@@ -467,7 +467,7 @@ Complete list of currently available key bindings:
"Display the currently selected thread."
(interactive "P")
(let ((thread-id (notmuch-search-find-thread-id))
- (subject (notmuch-prettify-subject (notmuch-search-find-subject))))
+ (subject (notmuch-pretty-non-empty-subject (notmuch-search-find-subject))))
(if (> (length thread-id) 0)
(notmuch-show thread-id
(current-buffer)
@@ -850,7 +850,7 @@ non-authors is found, assume that all of the authors match."
(insert (concat "Error: Unexpected output from notmuch search:\n" (substring string line (match-beginning 1)) "\n")))
(let ((beg (point)))
(notmuch-search-show-result date count authors
- (notmuch-prettify-subject subject) tags)
+ (notmuch-pretty-subject subject) tags)
(notmuch-search-color-line beg (point) tag-list)
(put-text-property beg (point) 'notmuch-search-thread-id thread-id)
(put-text-property beg (point) 'notmuch-search-authors authors)
--
1.7.8.3
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