From 77bda77cdad0967d6a175b5b1c89166f7f46ab39 Mon Sep 17 00:00:00 2001
From: kaoru <kaoru>
Date: Fri, 23 Nov 2001 10:42:48 +0000
Subject: [PATCH] * wl-folder.el
 (wl-folder-guess-mailing-list-by-refile-rule): Change local
 variable name.
 (wl-folder-guess-mailing-list-by-folder-name): Ditto.
 (wl-folder-get-newsgroups): Return nil when non-news
 folder. * wl-summary.el (wl-summary-write-current-folder):
 State through when guess-list return nil.
 (wl-summary-write-current-folder-functions): Fixed
 docstring.

---
 wl/ChangeLog     |    8 ++++++++
 wl/wl-folder.el  |   47 +++++++++++++++++++++++++----------------------
 wl/wl-summary.el |   17 +++++++++++------
 3 files changed, 44 insertions(+), 28 deletions(-)

diff --git a/wl/ChangeLog b/wl/ChangeLog
index 71329c9..14053e9 100644
--- a/wl/ChangeLog
+++ b/wl/ChangeLog
@@ -1,5 +1,13 @@
 2001-11-23  TAKAHASHI Kaoru  <kaoru@kaisei.org>
 
+	* wl-folder.el (wl-folder-guess-mailing-list-by-refile-rule):
+	Change local variable name.
+	(wl-folder-guess-mailing-list-by-folder-name): Ditto.
+	(wl-folder-get-newsgroups): Return nil when non-news folder.
+	* wl-summary.el (wl-summary-write-current-folder): State through
+	when guess-list return nil.
+	(wl-summary-write-current-folder-functions): Fixed docstring.
+
 	* wl.el (wl-exit): Changed confirm message.
 
 	* wl.el (wl-init): (require 'mime-setup) move to toplevel.
diff --git a/wl/wl-folder.el b/wl/wl-folder.el
index d86f63e..6c97427 100644
--- a/wl/wl-folder.el
+++ b/wl/wl-folder.el
@@ -2029,10 +2029,11 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
 (defun wl-folder-get-newsgroups (folder)
   "Return Newsgroups field value string for FOLDER newsgroup.
 If FOLDER is multi, return comma separated string (cross post)."
-  (list nil nil (mapconcat 'identity
-			   (elmo-folder-newsgroups
-			    (wl-folder-get-elmo-folder folder))
-			   ",")))
+  (let ((nlist (elmo-folder-newsgroups
+			(wl-folder-get-elmo-folder folder))))
+    (if nlist
+	(list nil nil (mapconcat 'identity nlist ","))
+      nil)))
 
 (defun wl-folder-guess-mailing-list-by-refile-rule (entity)
   "Return ML address guess by FOLDER.
@@ -2040,17 +2041,18 @@ Use `wl-subscribed-mailing-list' and `wl-refile-rule-alist'."
   (let ((flist
 	 (elmo-folder-get-primitive-list
 	  (wl-folder-get-elmo-folder entity)))
-	fld ret mlist)
+	fld mladdr to)
     (while (setq fld (car flist))
-      (if (setq ret
-		(wl-folder-guess-mailing-list-by-refile-rule-subr
-		 (elmo-folder-name-internal fld)))
-	  (setq mlist (if (stringp mlist)
-			  (concat mlist ", " ret)
-			ret)))
+      (setq mladdr (wl-folder-guess-mailing-list-by-refile-rule-subr
+		    (elmo-folder-name-internal fld)))
+      (when mladdr
+	(setq to (if (stringp to)
+		     (concat to ", " mladdr)
+		   mladdr)))
       (setq flist (cdr flist)))
-    (if mlist
-	(list mlist nil nil))))
+    (if (stringp to)
+	(list to nil nil)
+      nil)))
 
 (defun wl-folder-guess-mailing-list-by-refile-rule-subr (entity)
   (unless (memq (elmo-folder-type entity)
@@ -2077,17 +2079,18 @@ Use `wl-subscribed-mailing-list'."
   (let ((flist
 	 (elmo-folder-get-primitive-list
 	  (wl-folder-get-elmo-folder entity)))
-	fld ret mlist)
+	fld mladdr to)
     (while (setq fld (car flist))
-      (if (setq ret
-		(wl-folder-guess-mailing-list-by-folder-name-subr
-		 (elmo-folder-name-internal fld)))
-	  (setq mlist (if (stringp mlist)
-			  (concat mlist ", " ret)
-			ret)))
+      (setq mladdr (wl-folder-guess-mailing-list-by-folder-name-subr
+		    (elmo-folder-name-internal fld)))
+      (when mladdr
+	(setq to (if (stringp to)
+		     (concat to ", " mladdr)
+		   mladdr)))
       (setq flist (cdr flist)))
-    (if mlist
-	(list mlist nil nil))))
+    (if (stringp to)
+	(list to nil nil)
+      nil)))
 
 (defun wl-folder-guess-mailing-list-by-folder-name-subr (entity)
   (when (memq (elmo-folder-type entity)
diff --git a/wl/wl-summary.el b/wl/wl-summary.el
index 6ec84a8..651966c 100644
--- a/wl/wl-summary.el
+++ b/wl/wl-summary.el
@@ -4904,7 +4904,8 @@ Reply to author if invoked with ARG."
     wl-folder-guess-mailing-list-by-refile-rule
     wl-folder-guess-mailing-list-by-folder-name)
   "Newsgroups or Mailing List address guess functions list.
-Call from `wl-summary-write-current-folder'")
+Call from `wl-summary-write-current-folder'.
+When guess function return nil, challenge next guess-function.")
 
 (defun wl-summary-write-current-folder (&optional folder)
   "Write message to current FOLDER's newsgroup or mailing-list.
@@ -4917,11 +4918,15 @@ Use function list is `wl-summary-write-current-folder-functions'."
 	  guess-list)
       (while flist
 	(setq guess-list (funcall (car flist) folder))
-	(if (or (nth 0 guess-list)	; To:
-;;;		(nth 1 guess-list)	; Cc:
-		(nth 2 guess-list))	; Newsgroups:
-	    (setq flist nil)
-	  (setq flist (cdr flist))))
+	(cond ((null guess-list)
+	       (setq flist (cdr flist)))
+	      ;; To: or Newsgroups:
+	      ((or (stringp (nth 0 guess-list))
+		   (stringp (nth 2 guess-list)))
+	       (setq flist nil))
+	      ;; (nil X nil) or error case
+	      (t
+	       (setq flist (cdr flist)))))
       (when (null guess-list)
 	(error "Can't guess by folder %s" folder))
       (wl-draft (nth 0 guess-list) nil nil ; To:
-- 
1.7.10.4