From 435763fadbe337d9f6d8e66ef46209492e49e8b8 Mon Sep 17 00:00:00 2001
From: okazaki <okazaki>
Date: Thu, 27 Mar 2003 08:17:41 +0000
Subject: [PATCH] * elmo-util.el (elmo-string-member-ignore-case): New
 function. * elmo-imap4.el
 (elmo-imap4-response-get-selectable-mailbox-list): Use it.
 (elmo-imap4-fetch-callback-1-subr): Likewise.

---
 elmo/elmo-imap4.el |   10 +++++-----
 elmo/elmo-util.el  |   19 +++++++++++++++++++
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/elmo/elmo-imap4.el b/elmo/elmo-imap4.el
index 535a0b1..70e5041 100644
--- a/elmo/elmo-imap4.el
+++ b/elmo/elmo-imap4.el
@@ -607,7 +607,7 @@ BUFFER must be a single-byte buffer."
 	(mapcar
 	 (lambda (entry)
 	   (if (and (eq 'list (car entry))
-		    (not (member "\\Noselect" (nth 1 (nth 1 entry)))))
+		    (not (elmo-string-member-ignore-case "\\Noselect" (nth 1 (nth 1 entry)))))
 	       (car (nth 1 entry))))
 	 response)))
 
@@ -780,10 +780,10 @@ If CHOP-LENGTH is not specified, message set is not chopped."
 	 (app-data (car app-data))
 	 (seen (member (car entity) (nth 4 app-data)))
 	 mark)
-    (if (member "\\Flagged" flags)
+    (if (elmo-string-member-ignore-case "\\Flagged" flags)
 	(elmo-msgdb-global-mark-set (car entity) (nth 3 app-data)))
     (if (setq mark (elmo-msgdb-global-mark-get (car entity)))
-	(unless (member "\\Seen" flags)
+	(unless (elmo-string-member-ignore-case "\\Seen" flags)
 	  (setq elmo-imap4-seen-messages
 		(cons
 		 (elmo-msgdb-overview-entity-get-number entity)
@@ -792,12 +792,12 @@ If CHOP-LENGTH is not specified, message set is not chopped."
 			  (elmo-file-cache-get (car entity)))
 			 (if (or seen
 				 (and use-flag
-				      (member "\\Seen" flags)))
+				      (elmo-string-member-ignore-case "\\Seen" flags)))
 			     nil
 			   (nth 1 app-data))
 		       (if (or seen
 			       (and use-flag
-				    (member "\\Seen" flags)))
+				    (elmo-string-member-ignore-case "\\Seen" flags)))
 			   (if elmo-imap4-use-cache
 			       (nth 2 app-data))
 			 (nth 0 app-data))))))
diff --git a/elmo/elmo-util.el b/elmo/elmo-util.el
index b468759..9fab0b4 100644
--- a/elmo/elmo-util.el
+++ b/elmo/elmo-util.el
@@ -1272,6 +1272,25 @@ But if optional argument AUTO is non-nil, DEFAULT is returned."
 	  (throw 'found t))
       (setq slist (cdr slist)))))
 
+(cond ((fboundp 'member-ignore-case)
+       (defalias 'elmo-string-member-ignore-case 'member-ignore-case))
+      ((fboundp 'compare-strings)
+       (defun elmo-string-member-ignore-case (elt list)
+	 "Like `member', but ignores differences in case and text representation.
+ELT must be a string.  Upper-case and lower-case letters are treated as equal.
+Unibyte strings are converted to multibyte for comparison."
+	 (while (and list (not (eq t (compare-strings elt 0 nil (car list) 0 nil t))))
+	   (setq list (cdr list)))
+	 list))
+      (t
+       (defun elmo-string-member-ignore-case (elt list)
+	 "Like `member', but ignores differences in case and text representation.
+ELT must be a string.  Upper-case and lower-case letters are treated as equal."
+	 (let ((str (downcase elt)))
+	   (while (and list (not (string= str (downcase (car list)))))
+	     (setq list (cdr list)))
+	   list))))
+
 (defun elmo-string-match-member (str list &optional case-ignore)
   (let ((case-fold-search case-ignore))
     (catch 'member
-- 
1.7.10.4