[PATCH] emacs: Split the function notmuch-show-clean-address

[Mark Walters <markwalters1009@gmail.com>]

This function is also used by pick so split it out. Since, pick and show
want a slightly different combination of name and email make the
separated function return them as a pair, and let show or pick extract
the combination they want from that.
---

This change allows the removal of about 50 lines of duplicated code from
notmuch-pick. Later, we may want to move the split out function to lib.

 emacs/notmuch-show.el |   19 ++++++++++++++-----
 1 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 6335d45..0d8569d 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -354,6 +354,19 @@ operation on the contents of the current buffer."
 (defun notmuch-show-clean-address (address)
   "Try to clean a single email ADDRESS for display.  Return
 unchanged ADDRESS if parsing fails."
+  (let* ((clean-address (notmuch-clean-address address))
+	 (p-address (car clean-address))
+	 (p-name (car (cdr clean-address))))
+    ;; If no name, return just the address.
+    (if (not p-name)
+	p-address
+      ;; Otherwise format the name and address together.
+      (concat p-name " <" p-address ">"))))
+
+(defun notmuch-clean-address (address)
+  "Try to clean a single email ADDRESS for display.
+Return (AUTHOR_EMAIL AUTHOR_NAME). Return (ADDRESS nil) if
+parsing fails."
   (condition-case nil
     (let (p-name p-address)
       ;; It would be convenient to use `mail-header-parse-address',
@@ -401,11 +414,7 @@ unchanged ADDRESS if parsing fails."
       (when (string= p-name p-address)
 	(setq p-name nil))
 
-      ;; If no name results, return just the address.
-      (if (not p-name)
-	  p-address
-	;; Otherwise format the name and address together.
-	(concat p-name " <" p-address ">")))
+      (list p-address p-name))
     (error address)))
 
 (defun notmuch-show-insert-headerline (headers date tags depth)
-- 
1.7.9.1