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;;;;; -*-coding: raw-text;-*-
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;;;;;
;;;;; $Id$
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;;;;; Copyright (C) 1991, 1996  Lysator Academic Computer Association.
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;;;;;
;;;;; This file is part of the LysKOM server.
;;;;; 
;;;;; LysKOM is free software; you can redistribute it and/or modify it
;;;;; under the terms of the GNU General Public License as published by 
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;;;;; the Free Software Foundation; either version 2, or (at your option) 
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;;;;; any later version.
;;;;; 
;;;;; LysKOM is distributed in the hope that it will be useful, but WITHOUT
;;;;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
;;;;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
;;;;; for more details.
;;;;; 
;;;;; You should have received a copy of the GNU General Public License
;;;;; along with LysKOM; see the file COPYING.  If not, write to
;;;;; Lysator, c/o ISY, Linkoping University, S-581 83 Linkoping, SWEDEN,
;;;;; or the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, 
;;;;; MA 02139, USA.
;;;;;
;;;;; Please mail bug reports to bug-lyskom@lysator.liu.se. 
;;;;;
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;;;; ================================================================
;;;; ================================================================
;;;;
;;;; File: commands2.el
;;;;
;;;; This file contains the code for some high level commands.
;;;;

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(setq lyskom-clientversion-long 
      (concat lyskom-clientversion-long
	      "$Id$\n"))

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(eval-when-compile
  (require 'lyskom-command "command"))

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;;; ================================================================
;;;              Lista medlemsskap - List membership

;;; Author: Linus Tolke
;;; Rewritten by ceder


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;; This functions is left in its "asynchronous way".
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(def-kom-command kom-membership ()
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  "Show memberships last visited, priority, unread and name."
  (interactive)
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  (let ((buffer (lyskom-get-buffer-create 'list-membership
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                                          (concat (buffer-name 
                                                   (current-buffer))
                                                  "-membership")
                                          t)))
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    (save-window-excursion
      (set-buffer buffer)
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      (lyskom-view-mode)
      (lyskom-add-hook 'lyskom-new-membership-list-hook
                       'lyskom-update-membership-when-changed t)
      (setq truncate-lines t)
      (let ((inhibit-read-only t))
        (erase-buffer)
        (insert (lyskom-get-string 'your-memberships))
        (insert (lyskom-get-string 'memberships-header))))
    (save-selected-window
      (lyskom-display-buffer buffer))
    (lyskom-update-membership-buffer)))

(defun lyskom-update-membership-buffer ()
  (let ((buf (car (lyskom-buffers-of-category 'list-membership))))
    (when (buffer-live-p buf)
      (let ((inhibit-read-only t))
        (save-excursion (set-buffer buf)
                        (erase-buffer))
        (lyskom-traverse x lyskom-membership
          (initiate-get-conf-stat 'memberhsip 'lyskom-memb-received-1
                                  (membership->conf-no x)
                                  x buf))))))

(defun lyskom-update-membership-when-changed ()
  (let ((buffer (car (lyskom-buffers-of-category 'list-membership))))
    (if (buffer-live-p buffer)
        (save-excursion (set-buffer buffer)
                        (lyskom-update-membership-buffer))
      (lyskom-remove-hook 
       'lyskom-new-membership-list-hook
       'lyskom-update-membership-when-changed))))


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(defun lyskom-memb-received-1 (conf-stat membership buffer)
  "Part of kom-membership.
Get maps for the conference CONF-STAT. MEMBERSHIP is the users
membership in that conference. Call lyskom-memb-received with
the resulting MAP, CONF-STAT, MEMBERSHIP and BUFFER.
Args: CONF-STAT MEMBERSHIP BUFFER."
  (if (/= (conf-stat->conf-no conf-stat)
	  (membership->conf-no membership))
      (signal 'lyskom-internal-error '("lyskom-memb-received-1")))
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  (let* ((first-wanted (1+ (membership->last-text-read membership)))
	 (last-existing  (+ (conf-stat->first-local-no conf-stat)
			    (conf-stat->no-of-texts conf-stat)
			    -1)))
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    (if (> first-wanted last-existing)
	(lyskom-run 'membership 'lyskom-memb-received
		    nil conf-stat membership buffer)
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      (if (> (- last-existing first-wanted) 50)
	  (lyskom-run 'membership 'lyskom-memb-received
		      (- last-existing first-wanted)
		      conf-stat membership buffer)
	(initiate-get-map 'membership 'lyskom-memb-received
			  (membership->conf-no membership)
			  first-wanted
			  (+ 1 last-existing
			     (- first-wanted))
			  conf-stat membership buffer)))))
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(defun lyskom-memb-received (map conf-stat membership buffer)
  "Args: MAP CONF-STAT MEMBERSHIP BUFFER.
Prints membership in a conferences.
MAP may be nil if there are no new texts."
  (save-window-excursion
    (set-buffer buffer)
    (goto-char (point-max))
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    (let ((lyskom-executing-command 'kom-membership)
          (lyskom-current-command 'kom-membership)
          (inhibit-read-only t))
      (lyskom-format-insert 'memberships-line
                            (lyskom-return-date-and-time
                             (membership->last-time-read
                              membership))
                            (membership->priority membership)
                            (cond
                             ((null map) 0)
                             ((numberp map) map)
                             ((listp map)
                              (length (lyskom-list-unread map membership)))
                             (t (signal
                                 'lyskom-internal-error
                                 '("Erroneous map in lyskom-memb-received"))))
                            conf-stat))))
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;;; ================================================================
;;;          Status (f|r) M|te - Status for a conference

;;; Author: ceder (with some help by Linus)
;;; much enhanced by Inge Wallin (lyskom-status-conf-2 and beyond)


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(def-kom-command kom-status-conf (&optional conf-no)
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  "Prints conference status.
If argument CONF-NO is existing and non-nil then this conference is used. 
otherwise: the conference is read with lyskom-completing-read."
  (interactive)
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  (let ((conf-no
	 (or conf-no
	     (lyskom-read-conf-no (lyskom-get-string 'conf-for-status)
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				  '(all) nil nil t))))
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    (cache-del-conf-stat conf-no)
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    (cache-del-uconf-stat conf-no)
    (blocking-do-multiple ((conf-stat (get-conf-stat conf-no))
                           (uconf-stat (get-uconf-stat conf-no)))
      (if (null conf-stat)
          (lyskom-insert-string 'no-such-conf)
        (let* ((type (uconf-stat->conf-type uconf-stat))
               (box (conf-type->letterbox type))
               (ori (conf-type->original type))
               (pro (conf-type->rd_prot type))
               (sec (conf-type->secret type)))
          (lyskom-format-insert 'status-record
                                conf-stat
                                conf-stat
                                (cond
                                 ((or box ori pro sec)
                                  (concat
                                   "("
                                   (if box (lyskom-get-string 'Mailbox) "")
                                   (if (and box (or sec ori pro)) ", " "")
                                   (if sec (lyskom-get-string
                                            'Protected) "")
                                   (if (and sec (or ori pro)) ", " "")
                                   (if ori (lyskom-get-string
                                            'no-comments) "")
                                   (if (and ori pro) ", " "")
                                   (if pro (lyskom-get-string 'closed) "")
                                   ")"))
                                 (t ""))))
        (let ((creator (conf-stat->creator conf-stat)))
          (lyskom-format-insert 'created-by
                                creator
                                creator
                                (if (and 
                                     (lyskom-conf-stat-p creator)
                                     (> (length (conf-stat->name creator))
                                        (- (lyskom-window-width) 46)))
                                    "\n"
                                  "")))
        (lyskom-format-insert 'created-at
                              (lyskom-return-date-and-time
                               (conf-stat->creation-time conf-stat)))
        (lyskom-format-insert 'members
                              (conf-stat->no-of-members conf-stat))
        (lyskom-format-insert 'conf-allows-secret-members
                              (lyskom-get-string 
                               (if (conf-type->forbid-secret 
                                    (uconf-stat->conf-type uconf-stat))
                                   'secret-members-not-permitted
                                 'secret-members-permitted)))
        (lyskom-format-insert 'conf-allows-anon-texts
                              (lyskom-get-string 
                               (if (conf-type->anarchy
                                    (uconf-stat->conf-type uconf-stat))
                                   'anon-texts-permitted
                                 'anon-texts-not-permitted))) 
        (lyskom-format-insert 'garb-nice
                              (conf-stat->garb-nice conf-stat))
        (lyskom-format-insert 'lowest-local-no
                              (conf-stat->first-local-no conf-stat))
        (lyskom-format-insert 'highest-local-no
                              (1- (+ (conf-stat->no-of-texts conf-stat)
                                     (conf-stat->first-local-no conf-stat))))
        (lyskom-format-insert 'last-text-time
                              (lyskom-return-date-and-time
                               (conf-stat->last-written conf-stat)))
        (lyskom-format-insert 'no-of-motd
                              (conf-stat->msg-of-day conf-stat))
        (let ((superconf (conf-stat->super-conf conf-stat)))
          (lyskom-format-insert 'superconf-is-no-name
                                superconf
                                superconf
                                (if (and 
                                     (lyskom-conf-stat-p superconf)
                                     (> (length (conf-stat->name superconf))
                                        (- (lyskom-window-width) 46)))
                                    "\n"
                                  "")))
        (let ((permitted-submitters (conf-stat->permitted-submitters conf-stat)))
          (lyskom-format-insert 'permitted-submitters-no-name
                                permitted-submitters
                                (if (zerop permitted-submitters)
                                    (lyskom-get-string 'Everybody)
                                  permitted-submitters)
                                ""))
        (let ((supervisor (conf-stat->supervisor conf-stat)))
          (lyskom-format-insert 'supervisor-is-no-name
                                supervisor
                                supervisor
                                ""))
        (lyskom-format-insert 'presentation-no
                              (conf-stat->presentation conf-stat))

        (if (zerop (conf-stat->msg-of-day conf-stat))
            nil
          (lyskom-format-insert 'conf-has-motd conf-stat)
          (lyskom-view-text (conf-stat->msg-of-day conf-stat)))

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        ;; Show aux items

        (lyskom-traverse-aux item
            (conf-stat->aux-items conf-stat)
          (lyskom-aux-item-definition-call item 'status-print item conf-stat))

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        ;; Show all members of CONF-STAT if the user so wishes."
        (lyskom-scroll)
        (if (lyskom-j-or-n-p
             (lyskom-get-string 'show-members-list-also-q))
            (let ((member-list (blocking-do 'get-members
                                            (conf-stat->conf-no conf-stat)
                                            0 lyskom-max-int)))
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              (if (null member-list)
                  (lyskom-format-insert 'conf-has-no-members conf-stat)
                (lyskom-format-insert 'conf-has-these-members conf-stat)
                (if (lyskom-j-or-n-p (lyskom-get-string 'show-membership-info-q))
                    (progn
                      (lyskom-insert-string 'member-list-header)
                      (lyskom-traverse 
                       member (member-list->members member-list)
                       (let ((membership (blocking-do
                                          'query-read-texts 
                                          (member->pers-no member)
                                          (conf-stat->conf-no conf-stat))))
                         ;; Print a row describing the membership of MEMBER
                         ;; (described by MEMBERSHIP) in CONF-STAT.
                         (if (or (null membership))
                             (lyskom-insert-string 'secret-membership)
                           (lyskom-insert 
                            (format "%17s"
                                    (lyskom-return-date-and-time
                                     (membership->last-time-read membership))))
                           (let ((unread (- (+ (conf-stat->first-local-no
                                                conf-stat)
                                               (conf-stat->no-of-texts conf-stat))
                                            (membership->last-text-read membership)
                                            (length (membership->read-texts
                                                     membership))
                                            1)))
                             (lyskom-format-insert 'conf-membership-line
                                                   (if (zerop unread)
                                                       "         "
                                                     (format "%7d  " unread))
                                                   (member->pers-no member)
                                                   (lyskom-return-membership-type (member->membership-type member))
                                                   )
                             (when (and (member->created-by member)
                                        (not (zerop (member->created-by member)))
                                        (not (eq (member->pers-no member)
                                                 (member->created-by member))))
                               (lyskom-format-insert 'conf-membership-line-2
                                                     (lyskom-return-date-and-time
                                                      (member->created-at member))
                                                     (member->created-by member)))
                             )))))
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                  ;; Don't show membership info
                  (lyskom-insert "\n")
                  (lyskom-traverse
                   member (member-list->members member-list)
                   (lyskom-format-insert "  %#1P\n" 
                                         (member->pers-no member)))))))))))
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;;; ================================================================
;;;            Status (f|r) Person - status for a person

;;; Author: ceder
;;; Heavily enhanced: Inge Wallin (lyskom-status-pers-3 and beyond)


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(def-kom-command kom-status-person (&optional pers-no)
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  "Prints status for a person."
  (interactive)
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  (let ((pers-no
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         (or pers-no
             (lyskom-read-conf-no (lyskom-get-string 'pers-for-status)
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                                  '(pers) nil "" t)))
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	conf-stat
	pers-stat)
    (cache-del-conf-stat pers-no)
    (cache-del-pers-stat pers-no)
    (setq pers-stat (blocking-do 'get-pers-stat pers-no))
    (setq conf-stat (blocking-do 'get-conf-stat pers-no))

    ;; "Print status about PERS-STAT. The name is in CONF-STAT"
    (if (or (null pers-stat)
	    (null conf-stat))
	(lyskom-insert-string 'no-such-pers)
      (lyskom-format-insert 'pers-status-record
			    conf-stat
			    conf-stat)
      (lyskom-format-insert 'created-time
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			    (lyskom-return-date-and-time
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			     (conf-stat->creation-time conf-stat)))

      (lyskom-format-insert 'created-confs
			    (pers-stat->created-confs pers-stat))
      (lyskom-format-insert 'created-persons
			    (pers-stat->created-persons pers-stat))
      (lyskom-format-insert 'created-texts
			    (1- (+ (pers-stat->no-of-created-texts pers-stat)
				   (pers-stat->first-created-text pers-stat))))
      (lyskom-format-insert 'created-lines
			    (pers-stat->created-lines pers-stat))
      (lyskom-format-insert 'created-chars
			    (pers-stat->created-bytes pers-stat))

      (lyskom-format-insert 'no-of-sessions
			    (pers-stat->sessions pers-stat))
      (if (zerop (pers-stat->total-time-present pers-stat))
	  nil
	(lyskom-format-insert 'present-time-d-h-m-s
			      (/ (pers-stat->total-time-present pers-stat)
				 (* 24 3600))
			      (% (/ (pers-stat->total-time-present pers-stat)
				    3600) 24)
			      (% (/ (pers-stat->total-time-present pers-stat)
				    60) 60)
			      (% (pers-stat->total-time-present pers-stat)
				 60)))
      (lyskom-format-insert 'last-log-in
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			    (lyskom-return-date-and-time
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			     (pers-stat->last-login pers-stat)))
      (lyskom-format-insert 'user-name
			    (pers-stat->username pers-stat))
      (lyskom-format-insert 'read-texts
			    (pers-stat->read-texts pers-stat))
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      (if (= (pers-stat->pers-no pers-stat) lyskom-pers-no)
          (lyskom-format-insert 'marked-texts
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				(pers-stat->no-of-marks pers-stat)))
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      (lyskom-format-insert 'time-for-last-letter
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			    (lyskom-return-date-and-time
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			     (conf-stat->last-written conf-stat)))

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      (let ((superconf (conf-stat->super-conf conf-stat)))
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	(lyskom-format-insert 'superconf
			      superconf
			      superconf
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			      ""))
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      (if (not (zerop (conf-stat->supervisor conf-stat)))
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	  (let ((supervisor (conf-stat->supervisor conf-stat)))
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	    (lyskom-format-insert 'supervisor
				  supervisor
				  supervisor
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				  "")))
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      (lyskom-format-insert 'member-of-confs
			    (pers-stat->no-of-confs pers-stat))
      (lyskom-format-insert 'presentation
			    (conf-stat->presentation conf-stat))

      (if (not (zerop (conf-stat->msg-of-day conf-stat)))
	  (progn
	    (lyskom-format-insert 'has-motd conf-stat)
	    (lyskom-view-text (conf-stat->msg-of-day conf-stat))))

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      ;; Show aux items
      
      (lyskom-traverse-aux item
          (conf-stat->aux-items conf-stat)
        (lyskom-aux-item-definition-call item 'status-print item conf-stat))

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      ;; "Show all conferences CONF-STAT is a member of if the user so wishes."
      (lyskom-scroll)
      (if (null (lyskom-j-or-n-p (lyskom-get-string
				  'show-membership-list-also-q))) 
	  nil
	(let ((membership-list 
	       (blocking-do 'get-membership
			    (conf-stat->conf-no conf-stat)))
	      (lyskom-count-var 0))

	  (if (null membership-list)
	      (lyskom-format-insert 'not-allowed-see-confs conf-stat)
	    (lyskom-format-insert 'is-member-of conf-stat)
	    (lyskom-insert-string 'membership-list-header)
	    (setq lyskom-count-var 0)
	    (lyskom-traverse
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	     membership membership-list
	     (let ((cs (cache-get-conf-stat
			(membership->conf-no membership))))
	       (and cs
		    (lyskom-time-greater
		     (membership->last-time-read membership)
		     (conf-stat->last-written conf-stat))
		    (cache-del-conf-stat (membership->conf-no membership))))
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	     ;; "Print a row describing the membership of
	     ;; MEMBER-CONF-STAT
	     (let ((member-conf-stat
		    (blocking-do 'get-conf-stat 
				 (membership->conf-no membership))))
	       (if (or (null member-conf-stat)
		       (null membership))
		   (lyskom-insert-string 'secret-membership)
		 (lyskom-insert 
		  (format "%17s"
			  (lyskom-return-date-and-time
			   (membership->last-time-read membership))))
		 (let ((unread (- (+ (conf-stat->first-local-no
				      member-conf-stat)
				     (conf-stat->no-of-texts
				      member-conf-stat))
				  (membership->last-text-read membership)
				  (length (membership->read-texts
					   membership))
				  1)))
		   (lyskom-format-insert
		    'pers-membership-line
		    (if (zerop unread) "       " (format "%6d " unread))
		    (if (= (conf-stat->conf-no conf-stat)
			   (conf-stat->supervisor member-conf-stat))
			(lyskom-get-string 'is-supervisor-mark)
		      "  ")
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		    member-conf-stat
                    (lyskom-return-membership-type (membership->type membership))
                    )
                   (when (and (membership->created-by membership)
                              (not (zerop (membership->created-by membership)))
                              (not (eq (conf-stat->conf-no conf-stat)
                                       (membership->created-by membership))))
                     (lyskom-format-insert 'pers-membership-line-2
                                           (lyskom-return-date-and-time
                                            (membership->created-at membership))
                                           (membership->created-by membership)))

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		   (setq lyskom-count-var (+ lyskom-count-var unread)))))))
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	  ;; "Print the total number of unread texts for the person CONF-STAT."
	  (lyskom-format-insert 'his-total-unread 
				conf-stat
				lyskom-count-var))))))
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;;; ================================================================
;;;              Skicka meddelande - Send message

;;; Author: Inge Wallin
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;;; Rewritten to use lyskom-read-conf-no by Linus Tolke
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;;; Modified to use default recipient by David Byers
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(def-kom-command kom-send-message (&optional who message)
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  "Send a message to one of the users in KOM right now."
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  (interactive)
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  (let ((target (or who
		    (lyskom-read-conf-no
		     (format (lyskom-get-string 'who-to-send-message-to)
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			     (lyskom-get-string 'nobody))
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                     (if kom-permissive-completion
                         '(all)
                       '(login conf))
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		     ;; Initial string:
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                     t
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		     (cond
		      ((eq kom-default-message-recipient 'everybody) nil)

		      ((and (eq kom-default-message-recipient 'group)
			    lyskom-last-group-message-recipient)
		       (cons lyskom-last-group-message-recipient 0))

		      ((or (and (eq kom-default-message-recipient 'group)
				(null lyskom-last-group-message-recipient))
			   (and (eq kom-default-message-recipient 'sender)
				lyskom-last-personal-message-sender))
		       (cons lyskom-last-personal-message-sender 0))

		      (t 
		       (if lyskom-last-personal-message-sender
			   (cons lyskom-last-personal-message-sender 0)
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			 "")))
                     t))))
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    (if (zerop target)
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        (lyskom-format-insert 'message-use-alarm-instead
                              (lyskom-command-name 'kom-send-alarm))
      (lyskom-format-insert 'message-recipient-info target)
      (lyskom-send-message target message))))
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(def-kom-command kom-send-alarm (&optional message)
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  "Send a message to all of the users in KOM right now."
  (interactive)
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  (lyskom-insert (lyskom-get-string 'message-all-info))
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  (lyskom-send-message 0 message))
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(defvar lyskom-message-recipient)
(defvar lyskom-message-string)


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(defun lyskom-send-message-minibuffer-setup-hook ()
  (unwind-protect
      (run-hooks 'lyskom-send-message-setup-hook)
    (remove-hook 'minibuffer-setup-hook 
                 'lyskom-send-message-minibuffer-setup-hook)))

(defun lyskom-send-message-minibuffer-exit-hook ()
  (unwind-protect
      (run-hooks 'lyskom-send-message-exit-hook)
    (remove-hook 'minibuffer-exit-hook
                 'lyskom-send-message-minibuffer-exit-hook)))

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(defun lyskom-send-message (pers-no
                            message &optional dontshow)
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  "Send a message to the person with the number PERS-NO.  PERS-NO == 0
means send the message to everybody. MESSAGE is the message to
send. If DONTSHOW is non-nil, don't display the sent message."
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  (let* ((lyskom-message-string nil)
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         (reply nil)
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         (lyskom-message-recipient nil)
         (lyskom-last-text-format-flags nil))
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    (add-hook 'minibuffer-setup-hook
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              'lyskom-send-message-minibuffer-setup-hook)
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    (add-hook 'minibuffer-exit-hook
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              'lyskom-send-message-minibuffer-exit-hook)
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    (setq lyskom-message-string 
          (or message
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              (lyskom-read-string (lyskom-get-string 'message-prompt)
                                  nil
                                  'lyskom-message-history)))
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    (setq lyskom-message-recipient (if (zerop pers-no)
                                       nil
                                     (blocking-do 'get-conf-stat 
                                                  pers-no)))

    (run-hooks 'lyskom-send-message-hook)
    (if lyskom-message-string
        (progn
          (setq reply (blocking-do 'send-message pers-no
                                   lyskom-message-string))

          (if reply
              (if (not dontshow)
                  (lyskom-handle-as-personal-message
                   (if lyskom-message-recipient
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                       (lyskom-format (lyskom-get-string-sol 
                                       'message-sent-to-user)
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                                      lyskom-message-string 
                                      lyskom-message-recipient)
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                     (lyskom-format (lyskom-get-string-sol 
                                     'message-sent-to-all)
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                                    lyskom-message-string))
                   lyskom-pers-no
                   lyskom-filter-outgoing-messages))
            (lyskom-format-insert-before-prompt
             'message-nope 
             (or lyskom-message-recipient
                 (lyskom-get-string 'everybody))
             lyskom-message-string)))
      (lyskom-insert-string 'interrupted))                   ;+++ lyskom-errno
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    ))
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(defun lyskom-send-message-trim-newlines ()
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  (when (stringp lyskom-message-string)
    (let ((size (length lyskom-message-string)))
      (while (and (> size 0)
                  (eq ?\n (aref lyskom-message-string (1- size))))
        (setq size (1- size)))
      (cond ((and (eq size 0)
                  (not (lyskom-j-or-n-p (lyskom-get-string 
                                         'send-empty-message-p))))
             (setq lyskom-message-string nil))
            ((eq size 0)
             (setq lyskom-message-string ""))
            (t (setq lyskom-message-string (substring lyskom-message-string 
                                                      0 size)))))))
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(lyskom-external-function lyskom-resize-minibuffer-mode)
(lyskom-external-function resize-minibuffer-setup)

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(defun lyskom-send-message-turn-off-resize-on-exit ()
  (resize-minibuffer-mode -1)
  (remove-hook 'lyskom-send-message-exit-hook
               'lyskom-send-message-turn-off-resize-on-exit))
               
(defun lyskom-send-message-resize-minibuffer ()
  "Temporarily turn on resizing of minibuffer"
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  (let ((tmp nil))
    (if (not resize-minibuffer-mode)
        (progn
          (if (not (memq 'resize-minibuffer-setup minibuffer-setup-hook))
              (setq tmp t))
          (resize-minibuffer-mode 0)
          (if tmp (resize-minibuffer-setup))
          (add-hook 'lyskom-send-message-exit-hook
                    'lyskom-send-message-turn-off-resize-on-exit)))))
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(defun lyskom-send-message-auto-fill ()
  "Temporarily turn on auto fill in minibuffer"
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  (setq fill-column 78)                 ;+++ Ta bort?
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  (auto-fill-mode 1))

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;;; ================================================================
;;;       Endast l{sa senaste - Set unread articles in a conf. 
;;;            (Skip or re-read articles).

;;; Author: Linus Tolke
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;;; Rehacked: David K}gedal
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(def-kom-command kom-set-unread (&optional arg conf-no)
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  "Set number of unread articles in current conference."
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  (interactive "P")
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  (setq conf-no (or conf-no lyskom-current-conf))
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  (if (and (zerop lyskom-current-conf) (null conf-no))
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      (progn
        (lyskom-insert-string 'not-present-anywhere)
        (lyskom-insert-string "\n"))
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    (let ((conf-stat (blocking-do 'get-conf-stat conf-no)))
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      (if (null conf-stat)              ;+++ annan errorhantering
          (lyskom-insert "Error!\n")	;+++ Hrrrmmmmffff????
        (let* ((narg (prefix-numeric-value arg))
               (n (if (and arg
                           (<= 0 narg)
                           (<= narg (conf-stat->no-of-texts conf-stat)))
                      narg
                    (lyskom-read-num-range 
                     0 (conf-stat->no-of-texts conf-stat)
                     (lyskom-format 'only-last
                                    (conf-stat->no-of-texts conf-stat)
                                    (conf-stat->name conf-stat)))))
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	       (result (blocking-do 'set-unread conf-no n))
               (membership (blocking-do 'query-read-texts
					lyskom-pers-no
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					conf-no)))
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          (ignore result)
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	  (lyskom-replace-membership membership lyskom-membership)
	  (if (= conf-no lyskom-current-conf)
	      (set-read-list-empty lyskom-reading-list))
	  (read-list-delete-read-info conf-no lyskom-to-do-list)
	  (lyskom-prefetch-map conf-no membership)
	  )))))
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;;; ================================================================
;;;                 Lista Nyheter - List News

;;; Author:   Linus Tolke
;;; Rehacked: Inge Wallin


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(defvar lyskom-special-conf-name "\\`\\(Inl.gg .t mig\\|NL:\\)\\'"
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  "Regexp to match conf names that are special.")

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(def-kom-command kom-list-news (&optional num)
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  "Print the number of unread articles to the user."
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  (interactive "P")
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  (unless kom-allow-incompleteness
    (sit-for 0)
    (lyskom-prefetch-all-confs))
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  (let* ((num-arg (cond
                   ((numberp num) num)
                   ((and (listp num)
                         (numberp (car num))) (car num))
                   (t nil)))
         (sum 0)
         (mship-confs (and (numberp num-arg)
                           (< num-arg 1)
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                           (delq nil 
                                 (mapcar (lambda (el)
                                           (when (not (membership-type->passive
                                                       (membership->type el)))
                                             (membership->conf-no el)))
                                         lyskom-membership))))
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         (nconfs 0))
    (when num-arg
      (lyskom-format-insert 'list-unread-with-n-unread num-arg))
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    (mapcar
     (function
      (lambda (info)
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        (let ((un (length (cdr (read-info->text-list info))))
              (name (conf-stat->name (read-info->conf-stat info)))
              (conf-stat (read-info->conf-stat info)))
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          (setq mship-confs (delq (conf-stat->conf-no conf-stat) mship-confs))
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          (cond
           ((eq (read-info->type info) 'CONF)
            (if (or (not num-arg)
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                    (>= un num-arg))
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                (lyskom-insert 
                 (if (and (boundp 'lyskom-special-conf-name)
                          (stringp lyskom-special-conf-name)
                          (string-match lyskom-special-conf-name name))
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                     (lyskom-format 'you-have-unreads-special un conf-stat)
                   (lyskom-format 'you-have-unreads un conf-stat))))
            (setq sum (+ sum un)
                  nconfs (1+ nconfs)))))))
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     (read-list->all-entries lyskom-to-do-list))
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    (mapcar 
     (lambda (conf-no)
       (lyskom-format-insert 'you-have-no-unreads conf-no))
       mship-confs)

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    (if (= 0 sum)
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        (lyskom-insert-string 'you-have-read-everything)
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      (lyskom-format-insert 'total-unreads sum nconfs))))
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;;; ================================================================
;;; 			V{nta - Idle wait


(defun kom-busy-wait (arg)
  "Sets the kom-session in wait-mode.
The wait-mode is interrupted when a text in a conference with higher priority
than that of the next text to be read.
If you want another priority to break that the ones higher that the next text 
to be read, give the priority as a prefix argument.
When a text is received the new text is displayed."
  (interactive "P")
  (lyskom-start-of-command 'kom-busy-wait)
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  (unwind-protect
      (let ((waitfor (or (cond
			  ((integerp arg) arg)
			  ((listp arg) (car arg)))
			 (read-info->priority
			  (read-list->first lyskom-to-do-list))
			 -2)))
	(lyskom-tell-server kom-mercial)
	(if (not (read-list-isempty lyskom-reading-list))
	    (set-read-list-empty lyskom-reading-list))
	(if (= waitfor -2)
	    (lyskom-insert-string 'waiting-for-anything)
	  (lyskom-format-insert 'waiting-higher-than waitfor))
	(lyskom-scroll)
	(setq lyskom-is-waiting
	      (list '>
		    '(or (read-info->priority
			  (read-list->first lyskom-reading-list))
			 (read-info->priority
			  (read-list->first lyskom-to-do-list))
			 257)
		    waitfor))
	(while lyskom-is-waiting
	  ;; This is a bit trial-and-error stuff at the momemt.
	  ;; o How to make personal messages appear *fast*
	  ;; o How to enable C-g with a quick response
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	  (sit-for 0)
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	  (accept-process-output nil 1)
	  (sit-for 0)
	  (if lyskom-quit-flag
	      (signal 'quit nil))))
    (lyskom-end-of-command))
  ;; We are done waiting
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  (lyskom-beep kom-ding-on-wait-done)
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  (if (read-list-isempty lyskom-reading-list)
      (kom-go-to-next-conf))
  (kom-next-command))
  
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(defun lyskom-time-greater (time1 time2)
  "Returns t if TIME2 is before TIME1 chronologically."
  (cond
   ((< (time->year time2) (time->year time1)))
   ((< (time->mon time2) (time->mon time1)))
   ((< (time->mday time2) (time->mday time1)))
   ((< (time->hour time2) (time->hour time1)))
   ((< (time->min time2) (time->min time1)))
   ((< (time->sec time2) (time->sec time1)))
   (t nil)))


;;; ================================================================
;;;               Lista {rende - list summary

;;; Author: Linus Tolke


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(def-kom-command kom-list-summary ()
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  "List a summary of the unread in the current conf.
The summary contains the date, number of lines, author and subject of the text
on one line."
  (interactive)
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  (if (read-list-isempty lyskom-reading-list)
      (lyskom-insert-string 'have-to-be-in-conf-with-unread)
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    (lyskom-list-summary
      (text-list->texts 
       (read-info->text-list 
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	(let ((len (read-list-length lyskom-reading-list))
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	      (r 0))
	  (while (< r len)
	    (let ((type (read-info->type 
			 (read-list->nth lyskom-reading-list
					 r))))
	      (if (or (eq type 'CONF)
		      (eq type 'REVIEW-MARK)
		      (eq type 'REVIEW))
		  (setq len 0)
		(++ r))))
	  (read-list->nth lyskom-reading-list r)))))))


(defun lyskom-list-summary (texts)
  "List a summary of the texts in TEXTS.
The summary contains the date, number of lines, author and subject of the text
on one line."
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  (let ((time (blocking-do 'get-time))
	(author-width (/ (- (lyskom-window-width) 22) 3)))
    
    ;; Start fetching all text-stats and text to list them.
    (lyskom-format-insert (concat "%-8#1s%-6#2s%-4#3s %-"
				  (int-to-string author-width)
				  "#4s  %#5s\n")
			  (lyskom-get-string 'Texts)
			  (lyskom-get-string 'Date)
			  (lyskom-get-string 'Lines)
			  (lyskom-get-string 'Author)
			  (lyskom-get-string 'Subject))
    (lyskom-traverse
	text-no texts
      (let ((text-stat (blocking-do 'get-text-stat text-no))
	    (text (blocking-do 'get-text text-no))
	    ;; We could do som optimization here. 
	    ;; We really don't need the whole text.
	    )
	(lyskom-print-summary-line text-stat text text-no 
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				   (time->year time) (time->yday time))
	(sit-for 0)))))
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(defun lyskom-print-summary-line (text-stat text text-no year day)
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  "Handle the info, fetch the author and print it.
Args: TEXT-STAT TEXT TEXT-NO YEAR DAY.
The year and day is there to be able to choose format on the day.
Format is 23:29 if the text is written today. Otherwise 04-01."
  (if (not (and text-stat text))	;+++ B{ttre felhantering.
      (lyskom-format-insert 'could-not-read text-no)
    (let* ((lines (text-stat->no-of-lines text-stat))
	   (txt (text->text-mass text))
	   (eos (string-match (regexp-quote "\n") txt))
	   (subject (substring txt 0 eos))
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	   ;; length of the number %%%%%% :8
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	   ;; length for time is: 6
	   (time (text-stat->creation-time text-stat))
	   (time (if (and (= year (time->year time))
			  (= day (time->yday time)))
		     (format "%02d:%02d" (time->hour time)
			     		 (time->min time))
		   (format "%02d-%02d" (1+ (time->mon time))
			   	       (time->mday time))))
	   ;; length for lines is: 4
	   ;; We split the rest between author and subject
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	   (namelen (/ (- (lyskom-window-width) 22) 3))
	   (subjlen (/ (* (- (lyskom-window-width) 22) 2) 3))
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	   (format-string (concat "%=-8#1n%#2s%4#3d  %=-"
				  (int-to-string namelen)
				  "#4P  %[%#5@%=-"
				  (int-to-string subjlen)
				  "#6r%]\n")))
      (lyskom-format-insert format-string
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			    text-no
			    time
			    lines
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			    (text-stat->author text-stat)
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			    (lyskom-default-button 'text
						   text-no)
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			    subject))))
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;;; ============================================================
;;; kom-list-marks                      Lista markeringar
;;; Author: David Byers

(def-kom-command kom-list-marks (&optional which-mark)
  (interactive "P")
  (when (not (numberp which-mark))
    (setq which-mark (lyskom-read-num-range 
                      0 255
                      (lyskom-get-string 'list-which-mark) nil nil nil t)))
  (let ((marks
         (sort (listify-vector (blocking-do 'get-marks))
               (lambda (a b) (< (mark->mark-type a) (mark->mark-type b))))))
  (let ((time (blocking-do 'get-time))
	(author-width (/ (- (lyskom-window-width) 26) 3)))
    
    ;; Start fetching all text-stats and text to list them.
    (lyskom-format-insert (concat "%-4#6s%-8#1s%-6#2s%-4#3s %-"
				  (int-to-string author-width)
				  "#4s  %#5s\n")
			  (lyskom-get-string 'Texts)
			  (lyskom-get-string 'Date)
			  (lyskom-get-string 'Lines)
			  (lyskom-get-string 'Author)
			  (lyskom-get-string 'Subject)
                          (lyskom-get-string 'mark-type))
;    (lyskom-insert (make-string (1- (window-width)) ?-))
;    (lyskom-insert "\n")
    (lyskom-traverse
	mark marks
      (when (or (null which-mark)
                (eq (mark->mark-type mark) which-mark))
        (let* ((text-no (mark->text-no mark))
               (text-stat (blocking-do 'get-text-stat text-no))
               (text (blocking-do 'get-text text-no))
	    ;; We could do som optimization here. 
	    ;; We really don't need the whole text.
	    )
          (lyskom-print-mark-summary-line mark text-stat text text-no 
                                     (time->year time) (time->yday time))
          (sit-for 0))))
;    (lyskom-insert (make-string (1- (window-width)) ?-))
;    (lyskom-insert "\n")
    )))
                           
(defun lyskom-print-mark-summary-line (mark text-stat text text-no year day)
  "Handle the info, fetch the author and print it.
Args: TEXT-STAT TEXT TEXT-NO YEAR DAY.
The year and day is there to be able to choose format on the day.
Format is 23:29 if the text is written today. Otherwise 04-01."
  (lyskom-format-insert "%3#1d " (mark->mark-type mark))
  (if (not (and text-stat text))	;+++ B{ttre felhantering.
      (lyskom-format-insert 'could-not-read text-no)
    (let* ((lines (text-stat->no-of-lines text-stat))
	   (txt (text->text-mass text))
	   (eos (string-match (regexp-quote "\n") txt))
	   (subject (substring txt 0 eos))
	   ;; length of the number %%%%%% :8
	   ;; length for time is: 6
	   (time (text-stat->creation-time text-stat))
	   (time (if (and (= year (time->year time))
			  (= day (time->yday time)))
		     (format "%02d:%02d" (time->hour time)
			     		 (time->min time))
		   (format "%02d-%02d" (1+ (time->mon time))
			   	       (time->mday time))))
	   ;; length for lines is: 4
	   ;; We split the rest between author and subject