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nnimap 0.101 released



Index: nnimap/ChangeLog
diff -c nnimap/ChangeLog:1.202 nnimap/ChangeLog:1.204
*** nnimap/ChangeLog:1.202	Fri May 14 08:07:27 1999
--- nnimap/ChangeLog	Mon May 17 14:45:55 1999
***************
*** 1,3 ****
--- 1,38 ----
+ 1999-05-17  Simon Josefsson  <jas@pdc.kth.se>
+ 
+ 	* nnimap 0.101 released.
+ 
+ 	* nnimap.el (nnimap-replace-tabs): Use nsubstitue.
+ 	(nnimap-retrieve-headers-progress): Don't insert NOV lines
+ 	here. nnml messages.
+ 	(nnimap-retrieve-headers-get-uids): Don't search articles.
+ 	(nnimap-retrieve-headers): Insert NOV lines. nnml messages.
+ 	(nnimap-request-article-part): Use new imap-fetch.
+ 	(nnimap-nov-file): New variable.
+ 
+ 	* imap.el (imap-parse-astring): Don't use `line-end-position',
+ 	Emacs 20.4 specific.
+ 
+ 1999-05-17  Daiki Ueno <daiki@kiss.kake.info.waseda.ac.jp>
+ 
+ 	* nnimap.el (nnimap-split-articles): Turn number into string.
+ 
+ 1999-05-15  Simon Josefsson  <jas@pdc.kth.se>
+ 
+ 	* nnimap.el (nnimap-retrieve-headers-store-uids): 
+ 	(nnimap-retrieve-headers-get-uids): 
+ 	(nnimap-retrieve-headers-from-cache): 
+ 	(nnimap-retrieve-headers): Prepare for NOV caching.
+ 
+ 	* imap.el (imap-message-fetch): Renamed to imap-fetch. Return
+ 	props formatted as arguments.
+ 
+ 	* nnimap.el: Never expunge articles if unsure.
+ 	(nnimap-body-lines): Removed.
+ 	(nnimap-need-expunge): Removed.
+ 	(nnimap-retrieve-headers-progress): Use gnus-strip-whitespace.
+ 	(nnimap-expunge-close-group): Cleanup, default to no expunging.
+ 
  1999-05-14  Simon Josefsson  <jas@pdc.kth.se>
  
  	* nnimap.el: 0.100 released.
Index: nnimap/imap.el
diff -c nnimap/imap.el:1.130 nnimap/imap.el:1.132
*** nnimap/imap.el:1.130	Fri May 14 07:53:21 1999
--- nnimap/imap.el	Mon May 17 13:41:04 1999
***************
*** 858,886 ****
  	       (list list))
  	     ","))
  
! (defun imap-message-fetch (uids props &optional receive nouidfetch buffer)
    "Fetch properties PROPS from message set UIDS from server in
! BUFFER. UIDS is a list of articles. If RECEIVE is non-nil return
! theese properties."
    (with-current-buffer (or buffer (current-buffer))
!     (let ((uids (if (or (stringp uids) (listp uids)) uids (list uids)))
! 	  (props (if (or (stringp props) (listp props)) props (list props))))
!       (when (imap-ok-p (imap-send-command-wait 
! 			(concat (or nouidfetch
! 				    "UID ")
! 				"FETCH "
! 				(if (listp uids)
! 				    (imap-list-to-message-set uids)
! 				  uids)
! 				" "
! 				props)))
! 	(if (not (and receive (listp uids)))
! 	    t
! 	  (mapcar (lambda (uid)
! 		    (mapcar (lambda (prop)
! 			      (imap-message-get uid prop))
! 			    (if (listp receive) receive (list receive))))
! 		  uids))))))
      
  (defun imap-message-put (uid propname value &optional buffer)
    (with-current-buffer (or buffer (current-buffer))
--- 858,885 ----
  	       (list list))
  	     ","))
  
! (defun imap-fetch (uids props &optional receive nouidfetch buffer)
    "Fetch properties PROPS from message set UIDS from server in
! BUFFER. UIDS can be a string, number or a list of numbers. If RECEIVE
! is non-nil return theese properties."
    (with-current-buffer (or buffer (current-buffer))
!     (when (imap-ok-p (imap-send-command-wait 
! 		      (format "%sFETCH %s %s" (or nouidfetch "UID ")
! 			      (if (listp uids)
! 				  (imap-list-to-message-set uids)
! 				uids)
! 			      props)))
!       (if (or (null receive) (stringp uids))
! 	  t
! 	(if (listp uids)
! 	    (mapcar (lambda (uid)
! 		      (if (listp receive)
! 			  (mapcar (lambda (prop)
! 				    (imap-message-get uid prop))
! 				  receive)
! 			(imap-message-get uid receive)))
! 		    uids)
! 	  (imap-message-get uids receive))))))
      
  (defun imap-message-put (uid propname value &optional buffer)
    (with-current-buffer (or buffer (current-buffer))
***************
*** 993,999 ****
  	    (state imap-state)
  	    (imap-message-data (make-vector 2 0)))
  	(imap-mailbox-select mailbox nil 'examine)
! 	(imap-message-fetch "*" "UID")
  	(prog1
  	    (list (imap-mailbox-get 'uidvalidity mailbox)
  		  (car (imap-message-map (lambda (uid prop) uid) 'UID)))
--- 992,998 ----
  	    (state imap-state)
  	    (imap-message-data (make-vector 2 0)))
  	(imap-mailbox-select mailbox nil 'examine)
! 	(imap-fetch "*" "UID")
  	(prog1
  	    (list (imap-mailbox-get 'uidvalidity mailbox)
  		  (car (imap-message-map (lambda (uid prop) uid) 'UID)))
***************
*** 1010,1016 ****
  	    (state imap-state)
  	    (imap-message-data (make-vector 2 0)))
  	(imap-mailbox-select mailbox nil 'examine)
! 	(imap-message-fetch "*" "UID")
  	(prog1
  	    (list (imap-mailbox-get 'uidvalidity mailbox)
  		  (car (imap-message-map (lambda (uid prop) uid) 'UID)))
--- 1009,1015 ----
  	    (state imap-state)
  	    (imap-message-data (make-vector 2 0)))
  	(imap-mailbox-select mailbox nil 'examine)
! 	(imap-fetch "*" "UID")
  	(prog1
  	    (list (imap-mailbox-get 'uidvalidity mailbox)
  		  (car (imap-message-map (lambda (uid prop) uid) 'UID)))
***************
*** 1273,1281 ****
  
  (defsubst imap-parse-astring ()
    (or (imap-parse-string)
!       (buffer-substring (point) 
! 			(or (search-forward " " (line-end-position) t)
! 			    (line-end-position)))))
  
  ;;   address         = "(" addr-name SP addr-adl SP addr-mailbox SP
  ;;                      addr-host ")"
--- 1272,1278 ----
  
  (defsubst imap-parse-astring ()
    (or (imap-parse-string)
!       (buffer-substring (point) (re-search-forward " \r\n" nil t))))
  
  ;;   address         = "(" addr-name SP addr-adl SP addr-mailbox SP
  ;;                      addr-host ")"
Index: nnimap/nnimap.el
diff -c nnimap/nnimap.el:1.149 nnimap/nnimap.el:1.155
*** nnimap/nnimap.el:1.149	Fri May 14 08:06:57 1999
--- nnimap/nnimap.el	Mon May 17 14:46:21 1999
***************
*** 90,99 ****
    (require 'imap))
  
  (require 'nnoo)
  
  (nnoo-declare nnimap)
  
! (defconst nnimap-version "nnimap 0.100")
  
  (defvoo nnimap-address nil
    "Address of physical IMAP server.  If nil, use the virtual server's name.")
--- 90,105 ----
    (require 'imap))
  
  (require 'nnoo)
+ (require 'nnmail)
+ (require 'gnus)
+ (require 'gnus-range)
  
  (nnoo-declare nnimap)
+ 
+ (gnus-declare-backend "nnimap" 'mail 'address 'prompt-address 
+ 		      'physical-address)
  
! (defconst nnimap-version "nnimap 0.101")
  
  (defvoo nnimap-address nil
    "Address of physical IMAP server.  If nil, use the virtual server's name.")
***************
*** 179,188 ****
  (defvoo nnimap-directory message-directory
    "Data directory for the nnimap backend.")
  
! (defvoo nnimap-active-file
!   (concat (file-name-as-directory nnimap-directory) "active.nnimap.")
!   "Mail active file for the nnimap backend. The virtual server name
! will be appended")
  
  (defcustom nnimap-authinfo-file "~/.authinfo"
    "Authorization information for IMAP servers. In .netrc format."
--- 185,195 ----
  (defvoo nnimap-directory message-directory
    "Data directory for the nnimap backend.")
  
! (defvoo nnimap-nov-file "overview."
!   "NOV cache base filename. The group name will be appended. A typical
! complete file name would be ~/Mail/overview.nnimap+pdc:INBOX.spam, or
! ~/Mail/overview/nnimap/pdc/INBOX/spam if `gnus-use-long-file-name' is
! nil")
  
  (defcustom nnimap-authinfo-file "~/.authinfo"
    "Authorization information for IMAP servers. In .netrc format."
***************
*** 207,222 ****
  
  ;; Legacy variables:
  
- (require 'nnheader)
- (require 'nnmail)
- (require 'gnus)
- (require 'gnus-range)
- 
- (eval-when-compile (require 'cl))
- 
- (gnus-declare-backend "nnimap" 'mail 'address 'prompt-address 
- 		      'physical-address 'respool)  ;; respool??
- 
  ;; Various server variables.
  
  (defvoo nnimap-list-pattern "*" 
--- 214,219 ----
***************
*** 270,286 ****
  
  
  ;; Internal variables.
- (defvoo nnimap-need-expunge nil)
  (defvar nnimap-server-buffer-alist nil) ;; Map server name to buffers.
  (defvar nnimap-current-server nil)      ;; Current server
  (defvar nnimap-server-buffer nil)       ;; Current servers' buffer
  (defvar nnimap-length)
  (defvar nnimap-counter)
  
  (defvar nnimap-debug "*nnimap-debug*")
  
  ;; nnimap 1.x functions:
  
  (defmacro nnimap-get-server-buffer (server)
    "Return buffer for SERVER. If SERVER is nil, the current server is
  used."
--- 267,285 ----
  
  
  ;; Internal variables.
  (defvar nnimap-server-buffer-alist nil) ;; Map server name to buffers.
  (defvar nnimap-current-server nil)      ;; Current server
  (defvar nnimap-server-buffer nil)       ;; Current servers' buffer
  (defvar nnimap-length)
  (defvar nnimap-counter)
+ (defvar nnimap-uids)
  
  (defvar nnimap-debug "*nnimap-debug*")
  
  ;; nnimap 1.x functions:
  
+ (nnoo-define-basics nnimap)
+ 
  (defmacro nnimap-get-server-buffer (server)
    "Return buffer for SERVER. If SERVER is nil, the current server is
  used."
***************
*** 293,357 ****
    (setq nnimap-current-server (or server nnimap-current-server)
  	nnimap-server-buffer (nnimap-get-server-buffer nnimap-current-server)))
  
- (nnoo-define-basics nnimap)
- 
  (defsubst nnimap-replace-tabs (string)
    "Translate TAB characters into SPACE characters in STRING."
!   (subst-char-in-string ?\t ?  string t))
! 
! (defsubst nnimap-remove-delimiter (string)
!   "Remove trailing \r\n\r\n (rfc822 head/body delimiter) from string"
!   (and (> (length string) 4)
!        (substring string 0 -4)))
  
  (defun nnimap-retrieve-headers-progress ()
!   (when (and (> nnimap-length 25) (eq (mod nnimap-counter 5) 0))
!     (setq nnimap-counter (1+ nnimap-counter))
!     (message "Fetching headers...  %-3d%%" 
! 	     (* 100.0 (/ (float nnimap-counter) nnimap-length))))
!   (with-current-buffer nntp-server-buffer
!     (nnheader-insert-nov
!      (vector imap-current-message
! 	     (nnimap-replace-tabs (imap-message-envelope-subject
! 				   imap-current-message))
! 	     (nnimap-replace-tabs (imap-envelope-from 
! 				   (car-safe (imap-message-envelope-from
! 					      imap-current-message))))
! 	     (nnimap-replace-tabs (imap-message-envelope-date 
! 				   imap-current-message))
! 	     (nnimap-replace-tabs (imap-message-envelope-message-id
! 				   imap-current-message))
! 	     (nnimap-replace-tabs
! 	      (nnimap-remove-delimiter
! 	       (nth 2 (assoc "HEADER.FIELDS (References)"
! 			     (imap-message-get imap-current-message 
! 					       'BODYDETAIL)))))
! 	     (imap-message-get imap-current-message 'RFC822.SIZE)
! 	     (imap-body-lines (imap-message-body imap-current-message))
! 	     nil ;; xref
! 	     nil))) ;; extra-headers
!   )
  
  (deffoo nnimap-retrieve-headers (articles &optional group server fetch-old)
    (when (nnimap-possibly-change-group group server)
!     (with-current-buffer nntp-server-buffer
!       (erase-buffer))
!     (let* ((articles (if (numberp (car articles))
! 			 articles
! 		       (mapcar (lambda (msgid)
! 				 (imap-search 
! 				  (format "HEADER Message-Id %s" msgid
! 					  nnimap-server-buffer)))
! 			       articles)))
!            (compressed (gnus-compress-sequence articles t))
! 	   (imap-fetch-data-hook '(nnimap-retrieve-headers-progress))
! 	   (nnimap-length (length articles))
! 	   (nnimap-counter 0))
!       (imap-message-fetch (if (and fetch-old (not (numberp fetch-old)))
! 			      "1:*" (nnimap-range-to-string compressed))
! 			  "(UID RFC822.SIZE ENVELOPE BODY BODY.PEEK[HEADER.FIELDS (References)])"
! 			  nil nil nnimap-server-buffer))
!     'nov))
  
  (defun nnimap-open-connection (server)
    (if (not (imap-open nnimap-address nnimap-server-port nnimap-stream
--- 292,361 ----
    (setq nnimap-current-server (or server nnimap-current-server)
  	nnimap-server-buffer (nnimap-get-server-buffer nnimap-current-server)))
  
  (defsubst nnimap-replace-tabs (string)
    "Translate TAB characters into SPACE characters in STRING."
!   (nsubstitute ?  ?\t string))
  
  (defun nnimap-retrieve-headers-progress ()
!   (and (numberp nnmail-large-newsgroup)
!        (> nnimap-length nnmail-large-newsgroup)
!        (zerop (% (incf nnimap-counter) 20))
!        (nnheader-message 6 "nnimap: Receiving headers... %d%%"
! 			 (/ (* nnimap-counter 100) nnimap-length))))
! 
! (defun nnimap-retrieve-headers-store-uids ()
!   (setq nnimap-uids (cons imap-current-message nnimap-uids)))
! 
! (defun nnimap-retrieve-headers-get-uids (articles fetch-old)
!   (with-current-buffer nnimap-server-buffer
!     (if (numberp (car articles))
! 	(if (and fetch-old (not (numberp fetch-old)))
! 	    (let ((imap-fetch-data-hook '(nnimap-retrieve-headers-store-uids))
! 		  nnimap-uids)
! 	      (imap-fetch "1:*" "UID")
! 	      (nreverse nnimap-uids))
! 	  articles)
!       (mapcar (lambda (msgid)
! 		(imap-search 
! 		 (format "HEADER Message-Id %s" msgid)))
! 	      articles))))
  
  (deffoo nnimap-retrieve-headers (articles &optional group server fetch-old)
    (when (nnimap-possibly-change-group group server)
!     (let ((uids (nnimap-retrieve-headers-get-uids articles fetch-old))
! 	  (imap-fetch-data-hook '(nnimap-retrieve-headers-progress))
! 	  (nnimap-length (length articles))
! 	  (nnimap-counter 0))
!       (imap-fetch (nnimap-range-to-string (gnus-compress-sequence uids t))
! 		  (concat "(UID RFC822.SIZE ENVELOPE BODY "
! 			  "BODY.PEEK[HEADER.FIELDS (References)])")
! 		  nil nil nnimap-server-buffer)
!       (and (numberp nnmail-large-newsgroup)
! 	   (> nnimap-length nnmail-large-newsgroup)
! 	   (nnheader-message 6 "nnimap: Receiving headers...done"))
!       (with-current-buffer nntp-server-buffer
! 	(dolist (uid uids)
! 	  (nnheader-insert-nov
! 	   (vector uid
! 		   (nnimap-replace-tabs (imap-message-envelope-subject uid))
! 		   (nnimap-replace-tabs 
! 		    (imap-envelope-from 
! 		     (car-safe (imap-message-envelope-from uid))))
! 		   (nnimap-replace-tabs (imap-message-envelope-date uid))
! 		   (nnimap-replace-tabs (imap-message-envelope-message-id uid))
! 		   (let ((str (gnus-strip-whitespace 
! 			       (nth 2 (assoc 
! 				       "HEADER.FIELDS (References)"
! 				       (imap-message-get
! 					uid 'BODYDETAIL))))))
! 		     (if (> (length str) (length "References:"))
! 			 (substring str (length "References:"))
! 		       str))
! 		   (imap-message-get uid 'RFC822.SIZE)
! 		   (imap-body-lines (imap-message-body uid))
! 		   nil ;; xref
! 		   nil)))) ;; extra-headers
!       'nov)))
  
  (defun nnimap-open-connection (server)
    (if (not (imap-open nnimap-address nnimap-server-port nnimap-stream
***************
*** 449,463 ****
      (with-current-buffer (or to-buffer nntp-server-buffer)
        (erase-buffer)
        (insert (nnimap-demule
! 	       (or (car-safe
! 		    (car-safe
! 		     (imap-message-fetch 
! 		      (if (stringp article)
! 			  (car-safe (imap-search 
! 				     (format "HEADER Message-Id %s" article
! 					     nnimap-server-buffer)))
! 			article)
! 		      part prop nil nnimap-server-buffer)))
  		   "")))
        (nnheader-ms-strip-cr)
        (if (bobp)
--- 453,465 ----
      (with-current-buffer (or to-buffer nntp-server-buffer)
        (erase-buffer)
        (insert (nnimap-demule
! 	       (or (imap-fetch
! 		    (if (stringp article)
! 			(car-safe (imap-search 
! 				   (format "HEADER Message-Id %s" article
! 					   nnimap-server-buffer)))
! 		      article)
! 		    part prop nil nnimap-server-buffer)
  		   "")))
        (nnheader-ms-strip-cr)
        (if (bobp)
***************
*** 476,481 ****
--- 478,501 ----
    (nnimap-request-article-part
     article "RFC822.TEXT.PEEK" 'RFC822.TEXT group server to-buffer))
  
+ (defun nnimap-expunge-close-group (&optional server)
+   (with-current-buffer nnimap-server-buffer
+     (when (nnimap-possibly-change-server server)
+       (case nnimap-expunge-on-close
+ 	('always (imap-mailbox-expunge)
+ 		 (imap-mailbox-close))
+ 	('ask (when (imap-search "DELETED")
+ 		(if (gnus-y-or-n-p (format "Expunge articles in group `%s'? "
+ 					   imap-current-mailbox))
+ 		    (and (imap-mailbox-expunge)
+ 			 (imap-mailbox-close))
+ 		  (imap-mailbox-unselect))))
+ 	(t (imap-mailbox-unselect)))
+       (not imap-current-mailbox))))
+ 
+ (deffoo nnimap-close-group (group &optional server)
+   (nnimap-expunge-close-group server))
+ 
  (defun nnimap-pattern-to-list-arguments (pattern)
    (mapcar (lambda (p)
  	    (cons (car-safe p) (or (cdr-safe p) p)))
***************
*** 507,536 ****
  
  ;; Optional backend functions
  
- (defun nnimap-body-lines (body)
-   "Return number of lines in article by looking at the mime bodystructure
- BODY."
-   (if (listp body)
-       (if (stringp (car body))
- 	  (cond ((and (string= (car body) "TEXT")
- 		      (numberp (nth 7 body)))
- 		 (nth 7 body))
- 		((and (string= (car body) "MESSAGE")
- 		      (numberp (nth 9 body)))
- 		 (nth 9 body))
- 		(t 0))
- 	(apply '+ (mapcar 'nnimap-body-lines body)))
-     0))
- 
- ;; nnimap-request-scan doesn't need to do anything. the delivery agent
- ;; program is responsible for putting new message in the imap folders.
- ;; compare the situation with nntp (nil function) and with all nnmail-
- ;; backends (fetches mail from spools, POPing, saving in files on local
- ;; storage etc).
- ;; On the other hand, we could do message splitting here.
- (deffoo nnimap-request-scan (&optional group server)
-   (nnimap-split-articles group server))
- 
  ;; This is from nnmail.el:nnmail-expand-newtext, written by Larsi.
  (defun nnimap-expand-newtext (newtext)
    (let ((len (length newtext))
--- 527,532 ----
***************
*** 616,622 ****
  		;; copy article to right group(s)
  		(setq removeorig nil)
  		(dolist (to-group (nnimap-split-to-groups rule))
! 		  (if (imap-message-copy article to-group nil nil t)
  		      (progn
  			(message "IMAP split moved %s:%s:%d to %s" server inbox
  				 article to-group)
--- 612,619 ----
  		;; copy article to right group(s)
  		(setq removeorig nil)
  		(dolist (to-group (nnimap-split-to-groups rule))
! 		  (if (imap-message-copy (number-to-string article)
! 					 to-group nil nil t)
  		      (progn
  			(message "IMAP split moved %s:%s:%d to %s" server inbox
  				 article to-group)
***************
*** 624,633 ****
  		    (message "IMAP split failed to move %s:%s:%d to %s" server
  			     inbox article to-group)))
  		;; remove article if it was successfully copied somewhere
! 		(when removeorig
! 		  (setq nnimap-need-expunge t)
! 		  (imap-message-flags-add (format "%d" article)
! 					  "\\Seen \\Deleted")))))
  	  (when (imap-mailbox-select inbox) ;; just in case
  	    ;; todo: UID EXPUNGE (if available) to remove splitted articles
  	    (nnimap-expunge-close-group)))
--- 621,629 ----
  		    (message "IMAP split failed to move %s:%s:%d to %s" server
  			     inbox article to-group)))
  		;; remove article if it was successfully copied somewhere
! 		(and removeorig
! 		     (imap-message-flags-add (format "%d" article)
! 					     "\\Seen \\Deleted")))))
  	  (when (imap-mailbox-select inbox) ;; just in case
  	    ;; todo: UID EXPUNGE (if available) to remove splitted articles
  	    (nnimap-expunge-close-group)))
***************
*** 636,649 ****
  (deffoo nnimap-request-type (group &optional article)
    'mail)
  
- ;; (nn)IMAP specific decisions:
- ;;
- ;; o dormant articles are also marked as ticked (for other imap clients)
- ;;
- ;; action looks like:
- ;;   (((1 . 10) 'set '(read ticked))
- ;;    ((1 . 10) 'del '(tick reply expire killed dormant save download unsend)))
- ;;
  (deffoo nnimap-request-set-mark (group actions &optional server)
    (when (nnimap-possibly-change-group group server)
      (with-current-buffer nnimap-server-buffer
--- 632,637 ----
***************
*** 683,693 ****
--- 671,741 ----
  		      (nnoo-current-server 'nnimap) group))))
    nil)
  
+ (deffoo nnimap-request-scan (&optional group server)
+   (nnimap-split-articles group server))
+ 
  (deffoo nnimap-request-create-group (group &optional server args)
    (when (nnimap-possibly-change-server server)
      (or (imap-mailbox-status group 'uidvalidity nnimap-server-buffer)
  	(imap-mailbox-create group nnimap-server-buffer))))
  
+ (defun nnimap-time-substract (time1 time2)
+   "Return TIME for TIME1 - TIME2."
+   (let* ((ms (- (car time1) (car time2)))
+ 	 (ls (- (nth 1 time1) (nth 1 time2))))
+     (if (< ls 0)
+ 	(list (- ms 1) (+ (expt 2 16) ls))
+       (list ms ls))))
+ 
+ (defun nnimap-date-days-ago (daysago)
+   "Return date, in format \"3-Aug-1998\", for DAYSAGO days ago."
+   (let ((date (format-time-string "%d-%b-%Y" 
+ 				  (nnimap-time-substract
+ 				   (current-time)
+ 				   (if (fboundp 'days-to-time)
+ 				       (days-to-time daysago)
+ 				     (nnmail-days-to-time daysago))))))
+     (if (eq ?0 (string-to-char date))
+ 	(substring date 1)
+       date)))
+ 
+ (defun nnimap-request-expire-articles-progress ()
+   (gnus-message 5 "Expiring; marking article %d for deletion..." 
+ 		imap-current-message))
+ 
+ ;; Notice that we don't actually delete anything, we just mark them deleted.
+ (deffoo nnimap-request-expire-articles (articles group &optional server force)
+   (let ((artseq (gnus-compress-sequence articles)))
+     (when (and artseq (nnimap-possibly-change-group group server))
+       (with-current-buffer nnimap-server-buffer
+ 	(if force
+ 	    (and (imap-message-flags-add 
+ 		  (nnimap-range-to-string artseq) "\\Deleted")
+ 		 (setq articles nil))
+ 	  (let ((days (or (and nnmail-expiry-wait-function
+ 			       (funcall nnmail-expiry-wait-function group))
+ 			  nnmail-expiry-wait)))
+ 	    (cond ((eq days 'immediate)
+ 		   (and (imap-message-flags-add 
+ 			 (nnimap-range-to-string artseq) "\\Deleted")
+ 			(setq articles nil)))
+ 		  ((numberp days)
+ 		   (let ((oldarts (imap-search
+ 				   (format "UID %s NOT SINCE %s"
+ 					   (nnimap-range-to-string artseq)
+ 					   (nnimap-date-days-ago days))))
+ 			 (imap-fetch-data-hook 
+ 			  '(nnimap-request-expire-articles-progress)))
+ 		     (and oldarts
+ 			  (imap-message-flags-add
+ 			   (nnimap-range-to-string 
+ 			    (gnus-compress-sequence oldarts))
+ 			   "\\Deleted")
+ 			  (setq articles (gnus-set-difference
+ 					  articles oldarts)))))))))))
+   ;; return articles not deleted
+   articles)
+ 
  (deffoo nnimap-request-move-article (article group server
  					     accept-form &optional last)
    (when (nnimap-possibly-change-server server)
***************
*** 866,875 ****
  			   (apply 'max articles) group))))
      (gnus-message 7 "Opening nnimap group %s...done" group)))
  
- (deffoo nnimap-close-group (group &optional server)
-   (when (nnimap-possibly-change-group group server)
-     (nnimap-expunge-close-group server)))
- 
  ;;; Returns: GROUP HIGHEST LOWEST [ynmxj=]
  (defun nnimap-request-list-mapper (group)
    (unless (or (member "\\NoSelect" (imap-mailbox-get 'list-flags group))
--- 914,919 ----
***************
*** 969,1040 ****
  	      gnus-article-mark-lists))))
    info)
  
- (defun nnimap-time-substract (time1 time2)
-   "Return TIME for TIME1 - TIME2."
-   (let* ((ms (- (car time1) (car time2)))
- 	 (ls (- (nth 1 time1) (nth 1 time2))))
-     (if (< ls 0)
- 	(list (- ms 1) (+ (expt 2 16) ls))
-       (list ms ls))))
- 
- (defun nnimap-date-days-ago (daysago)
-   "Return date, in format \"3-Aug-1998\", for DAYSAGO days ago."
-   (let ((date (format-time-string "%d-%b-%Y" 
- 				  (nnimap-time-substract
- 				   (current-time)
- 				   (if (fboundp 'days-to-time)
- 				       (days-to-time daysago)
- 				     (nnmail-days-to-time daysago))))))
-     (if (eq ?0 (string-to-char date))
- 	(substring date 1)
-       date)))
- 
- (defun nnimap-request-expire-articles-progress ()
-   (gnus-message 5 "Expiring; marking article %d for deletion..." 
- 		imap-current-message))
- 
- ;; Notice that we don't actually delete anything, we just mark them deleted.
- (deffoo nnimap-request-expire-articles (articles group &optional server force)
-   (let (oldarts (artseq (gnus-compress-sequence articles)))
-     (when (and artseq (nnimap-possibly-change-group group server))
-       (with-current-buffer nnimap-server-buffer
- 	(if force
- 	    ;; add delete flag to article
- 	    (when (imap-message-flags-add (nnimap-range-to-string artseq) 
- 					"\\Deleted")
- 	      (setq nnimap-need-expunge t)
- 	      (setq articles nil))
- 	  (let ((days (or (and nnmail-expiry-wait-function
- 			       (funcall nnmail-expiry-wait-function group))
- 			  nnmail-expiry-wait)))
- 	    (cond ((eq days 'immediate)
- 		   ;; add delete flag to article
- 		   (when (imap-message-flags-add 
- 			  (nnimap-range-to-string artseq) "\\Deleted")
- 		     (setq nnimap-need-expunge t)
- 		     (setq articles nil)))
- 		  ((numberp days)
- 		   ;; We should not search only gnus-expired articles,
- 		   ;; Gnus makes sure request-expire-articles is called
- 		   ;; with correct arguments. (with total-expire,
- 		   ;; the articles won't have gnus-expire set but should
- 		   ;; be expired)
- 		   (setq oldarts (imap-search
- 				  (format "UID %s NOT SINCE %s"
- 					  (nnimap-range-to-string artseq)
- 					  (nnimap-date-days-ago days))))
- 		   (let ((imap-fetch-data-hook 
- 			  '(nnimap-request-expire-articles-progress)))
- 		     (when (and oldarts (imap-message-flags-add 
- 					 (nnimap-range-to-string 
- 					  (gnus-compress-sequence oldarts))
- 					 "\\Deleted"))
- 		       (setq nnimap-need-expunge t)
- 		       (setq articles (gnus-set-difference articles
- 							   oldarts)))))))))))
-   ;; return articles not deleted
-   articles)
- 
  
  ;;; Internal functions
  
--- 1013,1018 ----
***************
*** 1157,1182 ****
        t
      (nnheader-report 'nnimap (nth 3 status))))
  
- (defun nnimap-expunge-close-group (&optional server)
-   (with-current-buffer nnimap-server-buffer
-     (when (and (nnimap-possibly-change-server server)
- 	       imap-current-mailbox)
-       (cond ((eq nnimap-expunge-on-close 'always)
- 	     (when nnimap-need-expunge 
- 	       (setq nnimap-need-expunge nil)
- 	       (imap-send-command "EXPUNGE"))
- 	     (imap-mailbox-close))
- 	    ((eq nnimap-expunge-on-close 'never)
- 	     (imap-mailbox-unselect))
- 	    ((eq nnimap-expunge-on-close 'ask)
- 	     (when (imap-search "DELETED")
- 	       (if (gnus-y-or-n-p (format "Expunge articles in group `%s'? "
- 					  imap-current-mailbox))
- 		   (and (nnimap-ok-p (nnimap-send-command-wait "EXPUNGE"))
- 			(imap-mailbox-close))
- 		 (imap-mailbox-unselect)))))))
-   (not imap-current-mailbox))
- 
  (defun nnimap-possibly-change-group (group &optional server)
    (when (nnimap-possibly-change-server server)
      (with-current-buffer nnimap-server-buffer
--- 1135,1140 ----
***************
*** 1209,1261 ****
    (buffer-disable-undo (get-buffer-create nnimap-debug))
    (mapc (lambda (f) (trace-function-background f nnimap-debug))
          '(
! ;nnimap-body-lines
! nnimap-request-scan
! nnimap-split-copy-delete-article
! nnimap-split-move-article
! nnimap-expand-newtext
! nnimap-split-to-groups
! ;nnimap-split-find-rule
! nnimap-demule
! nnimap-split-find-inbox
! nnimap-split-articles
! nnimap-request-set-mark
! nnimap-request-move-article
! gnus-group-nnimap-expunge
! gnus-group-nnimap-edit-acl
! gnus-group-nnimap-edit-acl-done
! nnimap-group-mode-hook
  ;nnimap-retrieve-headers-progress
  nnimap-retrieve-headers
  nnimap-open-server
  nnimap-close-server
  nnimap-request-close
- nnimap-server-opened
  nnimap-status-message
  nnimap-request-article
  nnimap-request-head
  nnimap-request-body
! nnimap-request-article-part
! nnimap-request-group
  nnimap-close-group
- nnimap-request-list-mapper
  nnimap-pattern-to-list-arguments
  nnimap-request-list
  nnimap-request-post
! nnimap-retrieve-groups
! nnimap-request-update-info-internal
  nnimap-request-type
! nnimap-request-group-description
! nnimap-request-list-newsgroups
! nnimap-request-newgroups
  nnimap-request-create-group
  nnimap-time-substract
  nnimap-date-days-ago
  ;nnimap-request-expire-articles-progress
  nnimap-request-expire-articles
  nnimap-request-accept-article
  nnimap-request-delete-group
  nnimap-request-rename-group
  ;nnimap-mark-to-predicate
  ;nnimap-mark-to-flag-1
  ;nnimap-mark-to-flag
--- 1167,1219 ----
    (buffer-disable-undo (get-buffer-create nnimap-debug))
    (mapc (lambda (f) (trace-function-background f nnimap-debug))
          '(
! nnimap-possibly-change-server
  ;nnimap-retrieve-headers-progress
+ ;nnimap-retrieve-headers-store-uids
+ nnimap-retrieve-headers-get-uids
+ nnimap-retrieve-headers-from-cache
  nnimap-retrieve-headers
+ nnimap-open-connection
  nnimap-open-server
+ nnimap-server-opened
  nnimap-close-server
  nnimap-request-close
  nnimap-status-message
+ nnimap-demule
+ nnimap-request-article-part
  nnimap-request-article
  nnimap-request-head
  nnimap-request-body
! nnimap-expunge-close-group
  nnimap-close-group
  nnimap-pattern-to-list-arguments
  nnimap-request-list
  nnimap-request-post
! nnimap-expand-newtext
! nnimap-split-to-groups
! nnimap-split-find-rule
! nnimap-split-find-inbox
! nnimap-split-articles
  nnimap-request-type
! nnimap-request-set-mark
! nnimap-request-scan
  nnimap-request-create-group
  nnimap-time-substract
  nnimap-date-days-ago
  ;nnimap-request-expire-articles-progress
  nnimap-request-expire-articles
+ nnimap-request-move-article
  nnimap-request-accept-article
  nnimap-request-delete-group
  nnimap-request-rename-group
+ gnus-group-nnimap-expunge
+ gnus-group-nnimap-edit-acl
+ gnus-group-nnimap-edit-acl-done
+ nnimap-group-mode-hook
+ nnimap-request-group
+ nnimap-request-list-mapper
+ nnimap-retrieve-groups
+ nnimap-request-update-info-internal
  ;nnimap-mark-to-predicate
  ;nnimap-mark-to-flag-1
  ;nnimap-mark-to-flag
***************
*** 1264,1271 ****
  nnimap-range-to-string
  nnimap-send-command-wait
  ;nnimap-ok-p
- nnimap-expunge-close-group
- nnimap-possibly-change-server
  nnimap-possibly-change-group
            )))
  
--- 1222,1227 ----