From 07fb1f469c2b57317c1af22a709a181d4ecaac2c Mon Sep 17 00:00:00 2001
From: Daiki Ueno <ueno@unixuser.org>
Date: Fri, 29 Aug 2003 01:31:38 +0000
Subject: [PATCH] * riece-guess.el (riece-guess-channel-try-functions): Default
 to nil. (riece-default-guess-channel): Abolish.
 (riece-command-guess-switch-to-channel): Reconstruct riece-guess-candidates
 when it is empty.

---
 lisp/ChangeLog      |  8 ++++++++
 lisp/riece-guess.el | 26 ++++++++++++++++++--------
 2 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 2624de0..2dc7293 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,11 @@
+2003-08-29  Daiki Ueno  <ueno@unixuser.org>
+
+	* riece-guess.el (riece-guess-channel-try-functions): Default to
+	nil.
+	(riece-default-guess-channel): Abolish.
+	(riece-command-guess-switch-to-channel): Reconstruct
+	riece-guess-candidates when it is empty.
+
 2003-08-28  Daiki Ueno  <ueno@unixuser.org>
 
 	* riece-highlight.el (riece-dialogue-change-face): Use defvar to
diff --git a/lisp/riece-guess.el b/lisp/riece-guess.el
index 3112ce9..2a5371d 100644
--- a/lisp/riece-guess.el
+++ b/lisp/riece-guess.el
@@ -32,18 +32,17 @@
   :prefix "riece-"
   :group 'riece)
 
-(defcustom riece-guess-channel-try-functions
-  '(riece-default-guess-channel)
+(defcustom riece-guess-channel-try-functions nil
   "Functions which returns a list of channels the user wants to switch."
   :type '(repeat function)
   :group 'riece-guess)
 
 (defvar riece-current-channels)
-(defun riece-default-guess-channel ()
-  (delq nil (copy-sequence riece-current-channels)))
 
 (defun riece-guess-candidates ()
-  "Call \\[riece-guess-channel-try-functions] in turn and merge the results."
+  "Build candidate list.
+This function calls \\[riece-guess-channel-try-functions] in turn and
+merge the results."
   (let ((functions riece-guess-channel-try-functions)
 	candidates)
     (while functions
@@ -51,11 +50,21 @@
 	    (nconc candidates
 		   (delq nil (mapcar
 			      (lambda (channel)
-				(if (riece-identity-member channel candidates)
-				    nil
+				(unless (riece-identity-member
+					 channel candidates)
 				  channel))
 			      (funcall (car functions)))))
 	    functions (cdr functions)))
+    ;; Merge the default.
+    (setq candidates
+	  (nconc candidates
+		 (delq nil (mapcar
+			    (lambda (channel)
+			      (if (and channel
+				       (not (riece-identity-member
+					     channel candidates)))
+				  channel))
+			    riece-current-channels))))
     candidates))
 
 (defvar riece-guess-candidates nil)
@@ -63,7 +72,8 @@
 (defun riece-command-guess-switch-to-channel ()
   "Try to switch to the channel where the user is interested in."
   (interactive)
-  (unless (eq last-command this-command)
+  (unless (and (eq last-command this-command)
+	       riece-guess-candidates)
     (setq riece-guess-candidates (riece-guess-candidates)))
   (unless riece-guess-candidates
     (error "No channel"))
-- 
2.25.1