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;;;;; -*-coding: iso-8859-1;-*-
;;;;;
;;;;; $Id$
;;;;; Copyright (C) 1991-2002  Lysator Academic Computer Association.
;;;;;
;;;;; This file is part of the LysKOM Emacs LISP client.
;;;;; 
;;;;; LysKOM is free software; you can redistribute it and/or modify it
;;;;; under the terms of the GNU General Public License as published by 
;;;;; the Free Software Foundation; either version 2, or (at your option) 
;;;;; 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. 
;;;;;
;;;; ================================================================
;;;; ================================================================
;;;;
;;;; File: commands2.el
;;;;
;;;; This file contains the code for some high level commands.
;;;;

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

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


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

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


;; This functions is left in its "asynchronous way".
(def-kom-command kom-membership ()
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  "Show memberships last visited, priority, unread and name.
This command is semi-obsolete and will be removed in a future
version of the client.

See `kom-list-membership-in-window'."
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  (interactive)
  (let ((buffer (lyskom-get-buffer-create 'list-membership
                                          (concat (buffer-name 
                                                   (current-buffer))
                                                  "-membership")
                                          t)))
    (save-window-excursion
      (set-buffer buffer)
      (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
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          (initiate-get-conf-stat 'membership 'lyskom-memb-received-1
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                                  (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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;; This code uses get-map, but I don't think it's worth spending
;; time on fixing it. Go fix kom-handle-membership instead.
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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")))
  (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)))
    (if (> first-wanted last-existing)
        (lyskom-run 'membership 'lyskom-memb-received
                    nil conf-stat membership buffer)
      (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)))))

(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))
    (let ((lyskom-executing-command 'kom-membership)
          (lyskom-current-command 'kom-membership)
          (inhibit-read-only t)
          (kom-print-seconds-in-time-strings nil))
      (lyskom-format-insert 'memberships-line
                            (lyskom-format-time '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))))


;;; ================================================================
;;;          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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(defun lyskom-conf-type-marker (conf-stat)
  "Return a pretty string describing the type of CONF-STAT."
  (let* ((type (conf-stat->conf-type conf-stat))
	 (box (conf-type->letterbox type))
	 (ori (conf-type->original type))
	 (pro (conf-type->rd_prot type))
	 (sec (conf-type->secret type)))
    (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 ""))))

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(def-kom-command kom-status-conf (&optional conf-no)
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  "Print information about a conference.
The information listed may be taken from the client's cache and
therefore slightly out of date.

See `kom-extended-status-information'.

Lisp documentation:
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If argument CONF-NO is existing and non-nil then this conference is used. 
otherwise: the conference is read with lyskom-completing-read."
  (interactive)
  (let ((conf-no
         (or conf-no
             (lyskom-read-conf-no (lyskom-get-string 'conf-for-status)
                                  '(all) nil nil t)))
        (kom-print-seconds-in-time-strings nil))
    (cache-del-conf-stat conf-no)
    (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)
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	(lyskom-format-insert 'status-record
			      conf-stat
			      (lyskom-conf-type-marker conf-stat))
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        (let ((creator (conf-stat->creator conf-stat)))
          (lyskom-format-insert 'created-by
                                creator
                                creator
                                (if (and 
                                     (lyskom-conf-stat-p creator)
                                     (> (lyskom-string-width (conf-stat->name creator))
                                        (- (lyskom-window-width) 46)))
                                    "\n"
                                  "")))
        (lyskom-format-insert 'created-at
                              (lyskom-format-time
                               '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-format-time
                               '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)
                                     (> (lyskom-string-width (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)))

        ;; Show aux items

        (lyskom-traverse-aux item
            (conf-stat->aux-items conf-stat)
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          (if (lyskom-aux-item-definition-field item 'status-print)
              (lyskom-aux-item-call item 'status-print item conf-stat)
            (lyskom-format-insert 'status-aux-item
                                  (format "%d/%d" 
                                          (aux-item->aux-no item)
                                          (aux-item->tag item))
                                  (aux-item->creator item)
                                  (lyskom-aux-item-terminating-button item conf-stat))
            ))
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        (let ((mship (lyskom-try-get-membership (conf-stat->conf-no conf-stat) t)))
          (when mship
            (lyskom-format-insert 'conf-mship-priority
                                  (membership->priority mship)
                                  (lyskom-return-membership-type
                                   (membership->type mship)))))

        ;; 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)))

              (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)
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                                          (conf-stat->conf-no conf-stat)
                                          t
                                          0)))
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                         ;; Print a row describing the membership of MEMBER
                         ;; (described by MEMBERSHIP) in CONF-STAT.
                         (if (or (null membership))
                             (lyskom-insert-string 'secret-membership)
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                           (lyskom-format-insert 
                            "%#1@%-17#2s"
                            (if (membership-type->passive
                                 (member->membership-type member))
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                                `(face ,kom-dim-face)
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                              nil)
                            (lyskom-format-time
                             'date-and-time
                             (membership->last-time-read membership)))
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                           (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 "%9d  " unread))
                                                   (member->pers-no member)
                                                   (lyskom-return-membership-type (member->membership-type member))
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                                                   (if (membership-type->passive
                                                        (member->membership-type member))
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                                                       `(face ,kom-dim-face)
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                                                     nil)
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                                                   )
                             (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-format-time
                                                      'date-and-time
                                                      (member->created-at member))
                                                     (member->created-by member)))
                             )))))

                  ;; 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)))))))))))


;;; ================================================================
;;;            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 text-or-pers-no)
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  "Show information about a person. 
If a prefix argument is given, the status of the author of that text
will be shown.

See `kom-extended-status-information'.

This command accepts text number prefix arguments \(see
`lyskom-read-text-no-prefix-arg')."
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  (interactive (and current-prefix-arg ; only peek at textno:s when prefixed!
		    (list (lyskom-read-text-no-prefix-arg
			   'text-to-see-author-status-of))))
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  (let ((pers-no
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         (or (when (interactive-p)
	       (text-stat->author (blocking-do 'get-text-stat text-or-pers-no)))
	     text-or-pers-no
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             (lyskom-read-conf-no (lyskom-get-string 'pers-for-status)
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                                  '(pers) nil nil t)))
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        (kom-print-seconds-in-time-strings nil)
        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)
      (lyskom-format-insert 'created-time
                            (lyskom-format-time
                             'date-and-time
                             (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))
      (let ((time (pers-stat->total-time-present pers-stat)))
        (unless (zerop time) ;; Why not let it print "0 d 00:00:00"?
          (lyskom-format-insert 'present-time-d-h-m-s
                                (floor time (* 24 3600))
                                (mod (floor time 3600) 24)
                                (mod (floor time 60) 60)
                                (round (mod time 60)))))
      (lyskom-format-insert 'last-log-in
                            (lyskom-format-time
                             'date-and-time
                             (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))
      (if (= (pers-stat->pers-no pers-stat) lyskom-pers-no)
          (lyskom-format-insert 'marked-texts
                                (pers-stat->no-of-marks pers-stat)))
      (lyskom-format-insert 'time-for-last-letter
                            (lyskom-format-time
                             'date-and-time
                             (conf-stat->last-written conf-stat)))

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

      ;; Show aux items

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

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      ;; Show motd

      (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 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)))
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              (deferred-mships nil)
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              (lyskom-count-var 0)
              (lyskom-passive-count-var 0))
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          (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)
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            (setq lyskom-passive-count-var 0)
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            (lyskom-traverse
             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))))

             ;; "Print a row describing the membership of
             ;; MEMBER-CONF-STAT
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             (if (membership-type->passive 
                  (membership->type membership))
                 (setq deferred-mships 
                       (cons membership deferred-mships))
               (setq lyskom-count-var
                     (+ lyskom-count-var
                        (lyskom-status-pers-list-one-membership conf-stat membership)))))
            (lyskom-traverse membership (nreverse deferred-mships)
              (setq lyskom-passive-count-var
                     (+ lyskom-passive-count-var
                        (lyskom-status-pers-list-one-membership conf-stat membership)))))
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          ;; "Print the total number of unread texts for the person CONF-STAT."
          (lyskom-format-insert 'his-total-unread 
                                conf-stat
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                                lyskom-count-var
                                lyskom-passive-count-var))))))
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(defun lyskom-status-pers-list-one-membership (conf-stat membership)
  (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-format-insert
       "%#1@%-17#2s"
       (if (membership-type->passive
            (membership->type membership))
           `(face ,kom-dim-face)
         nil)
       (lyskom-format-time
        '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 "%9d " unread))
         (if (= (conf-stat->conf-no conf-stat)
                (conf-stat->supervisor member-conf-stat))
             (lyskom-get-string 'is-supervisor-mark)
           "  ")
         member-conf-stat
         (lyskom-return-membership-type
          (membership->type membership))
         (if (membership-type->passive
              (membership->type membership))
             `(face ,kom-dim-face)
           nil)
         )
        (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-format-time
                                 'date-and-time
                                 (membership->created-at membership))
                                (membership->created-by membership)))
        unread))))

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;;; ================================================================
;;;              Skicka meddelande - Send message

;;; Author: Inge Wallin
;;; Rewritten to use lyskom-read-conf-no by Linus Tolke
;;; Modified to use default recipient by David Byers


(def-kom-command kom-send-message (&optional who message)
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  "Send a message to another user or all members of a conference.
Messages sent with this command are not texts and are not stored
in the database. If you don't know if you should use this or write
a text, write a text \(see `kom-write-text' instead). Remember that
messages of this type are intrusive, yet may not be read by all
users.

Runs `kom-send-message-setup-hook' when entering the minibuffer.

See `kom-default-message-recipient'."
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  (interactive)
  (let* ((tmp nil)
         (target (or who
                     (lyskom-read-conf-no
                      (format (lyskom-get-string 'who-to-send-message-to)
                              (lyskom-get-string 'nobody))
                      (if kom-permissive-completion
                          '(all)
                        '(login conf))
                      t
                      (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))

                       ((and (eq kom-default-message-recipient 'last-recipient)
                             lyskom-last-message-recipient
                             (not (eq 0 lyskom-last-message-recipient))
                             (setq tmp (blocking-do 'get-uconf-stat lyskom-last-message-recipient)))
                        (cons (conf-stat->name tmp) 0))

                       (t 
                        (if lyskom-last-personal-message-sender
                            (cons lyskom-last-personal-message-sender 0)
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                          nil)))
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                      t))))
    (if (zerop target)
        (lyskom-format-insert 'message-use-alarm-instead
                              (lyskom-command-name 'kom-send-alarm))
      (setq lyskom-last-message-recipient target)
      (lyskom-format-insert 'message-recipient-info target)
      (lyskom-send-message target message))))


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(def-kom-command kom-send-alarm (&optional message) 
  "Send a message to all of the users in LysKOM.
Don't use this command unless what you have to say is really important to
everyone who is logged on.

Runs `kom-send-message-setup-hook' when entering the minibuffer."
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  (interactive)
  (lyskom-insert (lyskom-get-string 'message-all-info))
  (lyskom-send-message 0 message))


(defvar lyskom-message-recipient)
(defvar lyskom-message-string)


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

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

(defun lyskom-send-message (pers-no
                            message &optional dontshow)
  "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."
  (let* ((lyskom-message-string nil)
         (reply nil)
         (lyskom-message-recipient nil)
         (lyskom-last-text-format-flags nil))

    (add-hook 'minibuffer-setup-hook
              'lyskom-send-message-minibuffer-setup-hook)
    (add-hook 'minibuffer-exit-hook
              'lyskom-send-message-minibuffer-exit-hook)
    (setq lyskom-message-string 
          (or message
              (lyskom-read-string (lyskom-get-string 'message-prompt)
                                  nil
                                  'lyskom-message-history)))
    (setq lyskom-message-recipient (if (zerop pers-no)
                                       nil
                                     (blocking-do 'get-conf-stat 
                                                  pers-no)))

    (run-hooks 'lyskom-send-message-hook)
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    (run-hooks 'kom-send-message-hook)
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    (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
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                   (lyskom-format
                    (if lyskom-message-recipient
                        (lyskom-get-string-sol 'message-sent-to-user)
                      (lyskom-get-string-sol 'message-sent-to-all))
                    lyskom-message-string 
                    lyskom-message-recipient
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                    (when kom-async-highlight-dashed-lines
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                      `(face ,(or kom-async-dashed-lines-face
                                  lyskom-default-async-dashed-lines-face)))
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                    (when kom-async-highlight-text-body
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                      `(face ,(or kom-async-text-body-face
                                  lyskom-default-async-text-body-face))))
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                   lyskom-pers-no
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                   kom-filter-outgoing-messages))
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            (lyskom-format-insert-before-prompt
             'message-nope 
             (or lyskom-message-recipient
                 (lyskom-get-string 'everybody))
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             lyskom-message-string
             (lyskom-format 'error-code
                            (lyskom-get-error-text lyskom-errno)
                            lyskom-errno
                            lyskom-err-stat))))
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      (lyskom-insert-string 'interrupted))                   ;+++ lyskom-errno
    ))

(defun lyskom-send-message-trim-newlines ()
  (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)))))))

(lyskom-external-function resize-minibuffer-setup)

(defun lyskom-send-message-turn-off-resize-on-exit ()
  (resize-minibuffer-mode -1)
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  (remove-hook 'kom-send-message-exit-hook
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               'lyskom-send-message-turn-off-resize-on-exit))

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;; USER-HOOK: lyskom-send-message-resize-minibuffer
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(defvar resize-minibuffer-mode)
(defun lyskom-send-message-resize-minibuffer ()
  "Temporarily turn on resizing of minibuffer"
  (unless resize-minibuffer-mode
    (resize-minibuffer-mode 1)
    (resize-minibuffer-setup)
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    (add-hook 'kom-send-message-exit-hook
              'kom-send-message-turn-off-resize-on-exit)))
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;; USER-HOOK: lyskom-send-message-auto-fill
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(defun lyskom-send-message-auto-fill ()
  "Temporarily turn on auto fill in minibuffer"
  (setq fill-column 78)                 ;+++ Ta bort?
  (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
;;; Rehacked: David K}gedal
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(def-kom-command kom-set-unread (&optional arg conf-no)
  "Set number of unread articles in current conference."
  (interactive "P")
  (setq conf-no (or conf-no lyskom-current-conf))
  (if (or (null conf-no) (zerop conf-no))
      (progn
        (lyskom-insert-string 'not-present-anywhere)
        (lyskom-insert-string "\n"))
    (let ((conf-stat (blocking-do 'get-conf-stat conf-no)))
      (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
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                    (lyskom-read-num-range-or-date 0 (conf-stat->no-of-texts conf-stat)
                                                   (lyskom-format 'only-last
                                                                  (conf-stat->name conf-stat)))))
               (membership nil))
          (cond ((listp n)
                 (lyskom-format-insert 'set-unread-date 
                                       (elt n 0)
                                       (car (rassq (elt n 1) lyskom-month-names))
                                       (elt n 2))
                 (let* ((target-date (lyskom-create-time 0 0 0 (elt n 2) (elt n 1) (elt n 0) 0 0 nil))
                        (text (lyskom-find-text-by-date conf-stat target-date)))
                   (when text
                     (blocking-do 'set-last-read 
                                  (conf-stat->conf-no conf-stat)
                                  (car text)))))
                ((numberp n) 
                 (lyskom-format-insert 'set-unread-n n)
                 (blocking-do 'set-unread conf-no n)))
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          (setq membership (blocking-do 'query-read-texts lyskom-pers-no conf-no t 0))
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          (lyskom-replace-membership 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)
          (if (= conf-no lyskom-current-conf)
              (progn (lyskom-fetch-start-of-map conf-stat membership)
                     (lyskom-go-to-conf lyskom-current-conf t))
            (lyskom-prefetch-map conf-no membership))
          )))))
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;;; ================================================================
;;;                 Lista Nyheter - List News

;;; Author:   Linus Tolke
;;; Rehacked: Inge Wallin, Johan Sundstrm


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


(defvar lyskom-iter-list-news-total-confs)
(defvar lyskom-iter-list-news-mship-confs)
(defvar lyskom-iter-list-news-shown-unreads)
(defvar lyskom-iter-list-news-shown-confs)
(defvar lyskom-iter-list-news-total-unreads)
(defvar lyskom-iter-list-news-total-confs)

(defun lyskom-iter-list-news (unreads conf-stat at-least at-most)
  "Callback function used to show the number of unread messages of a
conference. It heavily relies on (and destructively modifies) its
environment."
  (when (and (or (not at-least)
                 (>= unreads at-least))	; unreads within lower bound
             (or (not at-most)
                 (<= unreads at-most)))	; unreads within upper bound
    (when lyskom-iter-list-news-mship-confs			; remember all read conferences?
      (setq lyskom-iter-list-news-mship-confs
            (delq (conf-stat->conf-no conf-stat) 
                  lyskom-iter-list-news-mship-confs)))
    (cond
     ((and (boundp 'lyskom-special-conf-name)
           (stringp lyskom-special-conf-name)
           (string-match lyskom-special-conf-name
                         (conf-stat->name conf-stat)))
      (lyskom-format-insert 'you-have-unreads-special unreads conf-stat))
     (t (lyskom-format-insert 'you-have-unreads unreads conf-stat)))
    (setq lyskom-iter-list-news-shown-unreads 
          (+ lyskom-iter-list-news-shown-unreads unreads)
          lyskom-iter-list-news-shown-confs
          (1+ lyskom-iter-list-news-shown-confs)))
  (setq lyskom-iter-list-news-total-unreads 
        (+ lyskom-iter-list-news-total-unreads unreads)
        lyskom-iter-list-news-total-confs
        (1+ lyskom-iter-list-news-total-confs)))


(def-kom-command kom-list-news (&optional num)
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  "Print the number of unread texts in each conference.

If the prefix argument is zero, show all conferences, including those
with no unread textts. With a positiv prefix argument, only show
conferences with at least that many unread texts. With a negative
prefix argument, only show conferences with no more than that many
unread texts.

See `kom-allow-incompleteness'."
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  (interactive "P")
  (let ((num-arg (cond
                  ((numberp num) num)
                  ((and (listp num)
                        (numberp (car num))) (car num))
                  (t nil)))
        (lyskom-iter-list-news-mship-confs nil)
        (at-least 1)
        (at-most nil)
        (lyskom-iter-list-news-shown-unreads 0)
        (lyskom-iter-list-news-total-unreads 0)
        (lyskom-iter-list-news-shown-confs 0)
        (lyskom-iter-list-news-total-confs 0))
    (when num-arg
      (cond
       ((= num-arg 0)
        (setq at-least nil
              lyskom-iter-list-news-mship-confs 
              (delq nil
                    (mapcar (lambda (el)
                              (when (not (membership-type->passive
                                          (membership->type el)))
                                (membership->conf-no el)))
                            lyskom-membership))))
       ((> num-arg 0)
        (lyskom-format-insert 'list-unread-with-n-unread
                              (setq at-least num-arg)))
       ((< num-arg 0)
        (lyskom-format-insert 'list-unread-with-at-most-n-unread
                              (setq at-most (- num-arg))))))

    ;; The following variables are bound in the callback
    ;; lyskom-iter-list-news-total-unreads
    ;; lyskom-iter-list-news-shown-unreads
    ;; lyskom-iter-list-news-total-confs
    ;; lyskom-iter-list-news-shown-confs
    ;; lyskom-iter-list-news-mship-confs

    (lyskom-list-news 'lyskom-iter-list-news (list at-least at-most))
    (when lyskom-iter-list-news-mship-confs ; then list all read conferences too
      (lyskom-traverse conf-no lyskom-iter-list-news-mship-confs
        (lyskom-format-insert 'you-have-no-unreads conf-no)))

    (if (= 0 lyskom-iter-list-news-total-unreads)
        (lyskom-insert-string 'you-have-read-everything)
      (if (= 0 lyskom-iter-list-news-shown-unreads)
          (lyskom-insert-string 'no-unreads-shown)
        (lyskom-insert "\n")) ; separate the shown list from the summary message
      (when (and
             (> lyskom-iter-list-news-shown-unreads 0)
             (< lyskom-iter-list-news-shown-unreads
                lyskom-iter-list-news-total-unreads))
        (lyskom-format-insert 'shown-unreads
                              lyskom-iter-list-news-shown-unreads
                              lyskom-iter-list-news-shown-confs))
      (lyskom-format-insert 'total-unreads
                            lyskom-iter-list-news-total-unreads 
                            lyskom-iter-list-news-total-confs))))


(defun lyskom-list-news (&optional callback &optional callback-args)
  "With no arguments, returns a list of tuples (unread . conf-stat).
When called with a CALLBACK function, this function is called
iteratively as the list is built up. This function should take the two
arguments `number-of-unread-messages-in-conference' and `conf-stat'
and optionally any other arguments sent in the list CALLBACK-ARGS, and
its return value will form the elements of the list returned from
lyskom-list-news. The callback will only be fed conferences with at
least one unread message in them."

  (unless kom-allow-incompleteness
    (sit-for 0)
    (lyskom-prefetch-all-confs))

  (mapcar
   (function
    (lambda (info)
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      (let ((unreads (length (text-list->texts (read-info->text-list info))))
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            (conf-stat (read-info->conf-stat info)))
        (when (eq (read-info->type info) 'CONF)
          (if callback
              (apply callback unreads conf-stat callback-args)
            (cons unreads conf-stat))))))
   (read-list->all-entries lyskom-to-do-list)))



;;; ================================================================
;;; 			V{nta - Idle wait


(defun kom-busy-wait (arg)
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  "Wait for new texts.
Waiting 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.

This command is semi-obsolete and may be removed in a future version
of the client.

See `kom-ding-on-wait-done'."
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  (interactive "P")
  (lyskom-start-of-command 'kom-busy-wait)
  (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
          (sit-for 0)
          (accept-process-output nil 1)
          (sit-for 0)
          (if lyskom-quit-flag
              (signal 'quit nil))))
    (lyskom-end-of-command))
  ;; We are done waiting
  (lyskom-beep kom-ding-on-wait-done)
  (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->year time2) (time->year time1)) nil)
   ((< (time->mon time2) (time->mon time1)))
   ((> (time->mon time2) (time->mon time1)) nil)
   ((< (time->mday time2) (time->mday time1)))
   ((> (time->mday time2) (time->mday time1)) nil)
   ((< (time->hour time2) (time->hour time1)))
   ((> (time->hour time2) (time->hour time1)) nil)
   ((< (time->min time2) (time->min time1)))
   ((> (time->min time2) (time->min time1)) nil)
   ((< (time->sec time2) (time->sec time1)))
   ((> (time->sec time2) (time->sec time1)) nil)
   (t nil)))
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;;; ================================================================
;;;               Lista {rende - list summary
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;;; Author: Linus Tolke
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(def-kom-command kom-list-summary (prefix)
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  "List a summary of the unread texts in the current conference.
The summary contains the date, number of lines, author and subject
of the text on one line.

with a prefix argument, list each unique subject only once."
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  (interactive "P")
  (if (read-list-isempty lyskom-reading-list)
      (lyskom-insert-string 'have-to-be-in-conf-with-unread)
    (lyskom-list-summary nil prefix)))
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(defun lyskom-list-summary (conf-no &optional unique)
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  "List a summary of unread texts in conference CONF-NO.
If CONF-NO is nil, list the first text-list element in lyskom-reading-list.
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If UNIQUE is non-nil, list only the first text with a particular subject.
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The summary contains the date, number of lines, author and subject of 
the text on one line."
  (let* ((read-info nil)
         (read-list (if conf-no lyskom-to-do-list lyskom-reading-list))
         (len (read-list-length read-list))
         (r 0))
    (while (< r len)
      (if (or (and conf-no 
                   (eq (read-info->type (read-list->nth read-list r)) 'CONF)
                   (eq conf-no (conf-stat->conf-no 
                                (read-info->conf-stat
                                 (read-list->nth read-list r)))))
              (and (null conf-no)
                   (memq (read-info->type (read-list->nth read-list r))
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                         '(CONF REVIEW-MARK REVIEW REVIEW-TREE REVIEW-FAQ REVIEW-FAQ-TREE))))
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          (setq len 0)
        (setq r (1+ r))))
    (setq read-info (read-list->nth read-list r))
    (when read-info
      (lyskom-do-list-summary
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       (text-list->texts (read-info->text-list read-info))
       unique))
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    ))

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(defun lyskom-do-list-summary (texts &optional unique)
  "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."
  (let ((time (lyskom-current-server-time))
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        (texts (copy-sequence texts))
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        (indent 0)
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        (unique-subjects nil))

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    ;; The header.
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    (lyskom-format-insert (lyskom-construct-summary-format-string t nil t)
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                          (lyskom-get-string 'Texts)
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                          (lyskom-get-string 'Written)
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                          (lyskom-get-string 'Lines)
                          (lyskom-get-string 'Author)
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                          (lyskom-get-string 'Subject)
                          nil
                          (lyskom-get-string 'Comments))
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    ;; The summary lines.
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    (let ((text-no nil)
          (last-subject ""))
      (while texts
        (setq text-no (car texts) texts (cdr texts))
        (cond 
         ((eq text-no 'in) (setq indent (1+ indent)))
         ((eq text-no 'out) (setq indent (1- indent)))
         (t (blocking-do-multiple ((text-stat (get-text-stat text-no))
                                   (text (get-text text-no)))
              (let* ((txt (text->decoded-text-mass text text-stat))
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                     (eos (and txt (string-match (regexp-quote "\n") txt)))
                     (subject (and eos (substring txt 0 eos))))
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                (when (or (not unique)
                          (and (not (lyskom-string-member subject unique-subjects))
                               (setq unique-subjects (cons subject unique-subjects))))
                  (lyskom-print-summary-line 
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                   (lyskom-construct-summary-format-string nil nil t)
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                   text-stat
                   (if (and (> indent 0) (string-equal subject last-subject))
                       ""
                     subject)
                   text-no
                   (time->year time)
                   (time->mon time)
                   (time->mday time)
                   indent))
                (setq last-subject subject)
                (let ((comments (lyskom-text-comments text-stat)))
                  (setq texts (cons 'out texts))
                  (lyskom-traverse comment-no (nreverse comments)
                    (when (memq comment-no texts)
                      (setq texts (cons comment-no (delq comment-no texts)))))
                  (setq texts (cons 'in texts)))))
            (sit-for 0)))))))


(defun lyskom-print-summary-line (format-string text-stat subject text-no year mon mday indent)
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  "Handle the info, fetch the author and print it.

The year, mon and mday are there to be able to choose format on the
day.  Format is HH:MM(:SS) if the text is written today, otherwise
YYYY-MM-DD."
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  (if (null text-stat)	;+++ B{ttre felhantering.
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      (lyskom-format-insert 'could-not-read text-no)
    (let* ((lines (text-stat->no-of-lines text-stat))
           (mx-date (car (lyskom-get-aux-item (text-stat->aux-items text-stat) 21)))
           (mx-from (car (lyskom-get-aux-item (text-stat->aux-items text-stat) 17)))
           (mx-author (car (lyskom-get-aux-item (text-stat->aux-items text-stat) 16)))
           (time (or (lyskom-mx-date-to-time mx-date)
                     (text-stat->creation-time text-stat)))
           (time (if (and (= year (time->year time))
                          (= mon (time->mon time))
                          (= mday (time->mday time)))
                     (lyskom-format-time 'time time)
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                   (lyskom-format-time 'timeformat-yyyy-mm-dd time))))
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      (lyskom-format-insert format-string
                            text-no
                            time
                            lines
                            (if (or mx-from mx-author)
                                (lyskom-format-mx-author mx-from mx-author)
                              (text-stat->author text-stat))
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                            (lyskom-default-button 'text text-no)
                            (concat 
                             (if (>= indent 10)
                                 (format ">>>[%d]>>>" indent)
                               (make-string indent ?\>))
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                             subject)
                            (length (lyskom-text-comments text-stat))))))
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(defun lyskom-max-text-no-width ()
  "Ask the server about the maximum text number width."
  (length (int-to-string (blocking-do 'find-previous-text-no
                                      lyskom-max-int))))


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(defun lyskom-construct-summary-format-string (header 
                                               include-mark-field 
                                               &optional include-comments-field)
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  "Returns a format string suitable for printing text summaries.  If
HEADER is non-nil, a header format string is contructed, otherwise a
format string for a summary row.  If (and only if) INCLUDE-MARK-FIELD
is non-nil, a field where the mark string can be put will be
included."
  (let* ((mark-field-width (when include-mark-field
                             (max (length (lyskom-get-string 'mark-type))
                                  (lyskom-max-mark-width))))
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         (comments-field-width (when include-comments-field 2))
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         (text-no-width (lyskom-max-text-no-width))
         (text-no-field-width (max (length (lyskom-get-string 'Texts))
                                   text-no-width))
         (written-field-width (max (length (lyskom-get-string 'Written))
                                   (length (lyskom-format-time 'time))
                                   (length (lyskom-format-time
                                            'timeformat-yyyy-mm-dd))))
         (lines-field-width (max (length (lyskom-get-string 'Lines))
                                 5))
         (author-and-subject-fields-width
          (max (+ (length (lyskom-get-string 'Author))
                  1
                  (length (lyskom-get-string 'Subject)))
               (- (lyskom-window-width)
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                  (+ (if include-mark-field (1+ mark-field-width) 0)
                     (if include-comments-field (1+ comments-field-width) 0)
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                     text-no-field-width
                     1
                     written-field-width
                     1
                     lines-field-width
                     1)
                  1)))
         (author-field-width (max (length (lyskom-get-string 'Author))
                                  (/ author-and-subject-fields-width 3)))
         (subject-field-width (- author-and-subject-fields-width
                                 author-field-width
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                                 1)))
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    (if header
        (concat (if include-mark-field
                    (concat "%-" (int-to-string mark-field-width) "#6s"
                            " ")
                  "")
                "%-" (int-to-string text-no-field-width) "#1s"
                " "
                "%-" (int-to-string written-field-width) "#2s"
                " "
                "%-" (int-to-string lines-field-width) "#3s"
                " "
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                (if include-comments-field
                    (concat "%-" (int-to-string comments-field-width) "#7s"
                            " ")
                  "")
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                "%-" (int-to-string author-field-width) "#4s"
                " "
                "%#5s"
                "\n")
      (concat (if include-mark-field
                  (concat "%-" (int-to-string mark-field-width) "#7s"
                          " ")
                "")
              "%-" (int-to-string text-no-field-width) "#1n"
              " "
              "%-" (int-to-string written-field-width) "#2s"
              " "
              "%" (int-to-string lines-field-width) "#3d"
              " "
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              (if include-comments-field
                  (concat "%#7?z%[%"
                          (int-to-string comments-field-width)
                          "#7d%]%[" 
                          (make-string comments-field-width ?\ )
                          "%]"
                          " ")
                "")
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              "%=-" (int-to-string (1- author-field-width)) "#4P"
              "  "
              "%[%#5@%=-" (int-to-string subject-field-width) "#6r%]"
              "\n"))))
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;;; ============================================================
;;; kom-list-marks                      Lista markeringar
;;; Author: David Byers
;;; Modified by: Joel Rosdahl

(def-kom-command kom-list-marks (&optional which-mark)
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  "List texts marked with a particular mark. Use `kom-mark-text' to
mark texts and `kom-unmark-text' to unmark them. A numeric prefix
argument indicated the mark to list. With no prefix argument, you
will be prompted for the mark."
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  (interactive "P")
  (when (not (numberp which-mark))
    (setq which-mark (lyskom-read-mark-type
                      (lyskom-get-string 'list-which-mark)
                      t)))
  (let ((marks
         (sort (listify-vector (blocking-do 'get-marks))
               (lambda (a b) (< (mark->mark-type a) (mark->mark-type b)))))
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        (time (lyskom-current-server-time)))
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    ;; Start fetching all text-stats and text to list them.
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    (lyskom-format-insert (lyskom-construct-summary-format-string t t)
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                          (lyskom-get-string 'Texts)
                          (lyskom-get-string 'Written)
                          (lyskom-get-string 'Lines)
                          (lyskom-get-string 'Author)
                          (lyskom-get-string 'Subject)
                          (lyskom-get-string 'mark-type))
    (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.
            )
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          (lyskom-print-mark-summary-line (lyskom-construct-summary-format-string nil t)
                                          mark text-stat text text-no 
                                          (time->year time) (time->yday time))
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          (sit-for 0))))
    ))

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(defun lyskom-print-mark-summary-line (format-string mark text-stat text text-no year day)
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  "Handle the info, fetch the author and print it.
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Args: FORMAT-STRING TEXT-STAT TEXT TEXT-NO YEAR DAY.
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The year and day is there to be able to choose format on the day.
Format is HH:MM(:SS) if the text is written today, otherwise
YYYY-MM-DD."
  (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->decoded-text-mass text text-stat))
           (eos (string-match (regexp-quote "\n") txt))
           (subject (substring txt 0 eos))
           (time (text-stat->creation-time text-stat))
           (time (if (and (= year (time->year time))
                          (= day (time->yday time)))
                     (lyskom-format-time 'time time)
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                   (lyskom-format-time 'timeformat-yyyy-mm-dd time))))
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      (lyskom-format-insert format-string
                            text-no
                            time
                            lines
                            (text-stat->author text-stat)
                            (lyskom-default-button 'text
                                                   text-no)
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                            subject
                            (mark->symbolic-mark-type mark)))))
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(defun lyskom-symbolic-mark-type-string (mark-no)
  "Return a symbolic name string for the mark-type of MARK."
  (or (car-safe (rassoc mark-no kom-symbolic-marks-alist))
      (int-to-string mark-no)))

(defun lyskom-max-mark-width ()
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  "Return the maximum width of the user's symbolic mark strings."
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  (max 3
       (apply 'max
              (mapcar (function (lambda (x) (length (car x))))
                      kom-symbolic-marks-alist))))

;;; ============================================================
;;;     kom-who-am-i - Vem r jag
;;;
;;; Author: David Byers

(def-kom-command kom-who-am-i ()
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  "Show your name and information about your sessions."
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  (interactive)
  (if (and lyskom-current-conf
           (not (zerop lyskom-current-conf)))
      (lyskom-format-insert 'who-i-am-present 
                            lyskom-pers-no
                            lyskom-current-conf)
    (lyskom-format-insert 'who-i-am-not-present lyskom-pers-no))

  (lyskom-format-insert 
   'who-i-am-server
   lyskom-server-name
   (version-info->software-version lyskom-server-version-info))

  (lyskom-format-insert 'who-i-am-client
                        lyskom-clientversion
                        lyskom-mule-compiled)

  (lyskom-format-insert 'who-i-am-emacs
                        (emacs-version)
                        enable-multibyte-characters))
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;;; ================================================================
;;;          Hj{lp vid del av kommando - Help function

;;; Author: Linus Tolke


(defun lyskom-help ()
  "Prints a short list of alternatives when you don't know what you can do."
  (interactive)
  (let* ((tohere (cond
                  ((stringp (this-command-keys))
                   (substring (this-command-keys) 0 -1))
                  (t                    ;This is the case in the lucid-emacs.
                   (let* ((tck (this-command-keys))
                          (newvec (make-vector (1- (length tck)) nil))
                          (r 0))
                     (while (< r (length newvec))
                       (aset newvec r (aref tck r))
                       (++ r))
                     newvec))))
         (binding (key-binding tohere))
         (keymap (cond
                  ((and (symbolp binding)
                        (fboundp binding))
                   (symbol-function binding))
                  (t binding)))
         (keylis (lyskom-help-get-keylist keymap))
         (text (format "\n%s: \n%s\n"
                       (mapconcat 'single-key-description tohere " ")
                       (mapconcat
                        (function
                         (lambda (arg)
                           (format "%s - %s" 
                                   (if (fboundp 'key-description)
                                       (if (not (vectorp (car arg)))
                                           (key-description (vector (car arg)))
                                         (key-description (car arg)))
                                     (cond ((symbolp (car arg))
                                            (format "%s" (car arg)))
                                           ((characterp (car arg))
                                            (format "%c" (car arg)))
                                           (t (format "%S" (car arg)))))
                                   (or (lyskom-command-name (cdr arg))
                                       (and (keymapp (cdr arg))
                                            (lyskom-get-string
                                             'multiple-choice))
                                       (cdr arg)))))
                        keylis
                        "\n")))
         ;; next-char
         )
    (if (eq major-mode 'lyskom-mode)
        (progn
          (lyskom-insert text)
          (lyskom-end-of-command))
      (with-output-to-temp-buffer "*Help*"
        (princ text)))))


(defun lyskom-help-get-keylist (keymap)
  (cond
   ((fboundp 'map-keymap)
    (and keymap
         (let (list)
           (map-keymap
            (function
             (lambda (event function)
               (setq list (cons (cons event function) list))))
            keymap t)
           (nreverse list))))
   ((vectorp keymap)
    (let ((lis nil)
          (r 0))
      (while (< r (length keymap))
        (if (aref keymap r)
            (setq lis (cons (cons r (aref keymap r))
                            lis)))
        (++ r))
      (nreverse lis))) 
   (t
    (cdr keymap))))
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;;; ================================================================
;;;      [ndra livsl{ngd - Set lifespan of texts in a conference

;;; Author: Inge Wallin


(def-kom-command kom-set-garb-nice ()
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  "Set the garbage collection time for a conference. Texts in a
conference will eventually be deleted automatically \(this process is
called garbage collection). This can only happen when a text is older
than the garbage collection time of all its recipients."
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  (interactive)
  (let ((conf-stat (lyskom-read-conf-stat
                    (lyskom-get-string 'conf-to-set-garb-nice-q)
                    '(all) nil nil t)))
    (if (not conf-stat)
        (lyskom-insert-string 'somebody-deleted-that-conf)
      (let ((garb-nice (lyskom-read-number 'new-garb-nice-q)))
        (lyskom-format-insert 'garb-nice-for-is
                              conf-stat
                              garb-nice)
        (if (not (blocking-do 'set-garb-nice
                              (conf-stat->conf-no conf-stat) 
                              garb-nice))
            (lyskom-insert-string 'nope) ;+++lyskom-errno
          (lyskom-insert-string 'done)
          (cache-del-conf-stat (conf-stat->conf-no conf-stat)))))))


;;; ================================================================
;;;       S{tt till}tna f|rfattare - set-permitted-submitters

;;; Author: Linus Tolke

(def-kom-command kom-set-permitted-submitters ()
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  "Set the permitted submitters of a conference. 
The permitted submitters of a conference is another conference. Only
members of the permitted submitters may submit texts to the conference."
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  (interactive)
  (let ((conf-stat (lyskom-read-conf-stat 
                    (lyskom-get-string 'conf-to-set-permitted-submitters-q)
                    '(all) nil nil t)))

    (if (not conf-stat)
        (lyskom-insert-string 'somebody-deleted-that-conf)
      (let ((new-conf (lyskom-read-conf-stat
                       (lyskom-format 'new-permitted-submitters-q
                                      (conf-stat->name conf-stat))
                       '(all) 
                       t nil t)))
        (if (eq new-conf nil)
            (lyskom-format-insert 'permitted-submitters-removed-for-conf 
                                  conf-stat)
          (lyskom-format-insert 'submitters-conf-for-is
                                conf-stat
                                new-conf))
        (if (not (blocking-do 'set-permitted-submitters
                              (conf-stat->conf-no conf-stat) 
                              (if (eq new-conf nil) ;Allowing all to write there
                                  0
                                (conf-stat->conf-no new-conf))))
            (lyskom-insert-string 'nope) ;+++ lyskom-errno
          (lyskom-insert-string 'done)
          (cache-del-conf-stat (conf-stat->conf-no conf-stat)))))))


;;; ================================================================
;;;             [ndra superm|te - Set super conference 

;;; Author: Inge Wallin


(def-kom-command kom-set-super-conf ()
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  "Set the super conference for a conference.
If a conference is set to only accept new texts, and not comments, any
comments submitted to the conference will be sent to the super
conference instead."
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  (interactive)
  (let ((conf-stat (lyskom-read-conf-stat 
                    (lyskom-get-string 'conf-to-set-super-conf-q)
                    '(all) nil nil t)))
    (if (not conf-stat)
        (lyskom-insert-string 'somebody-deleted-that-conf)
      (let ((new-conf (lyskom-read-conf-stat
                       (lyskom-format 'new-super-conf-q
                                      (conf-stat->name conf-stat))
                       '(all) nil nil t)))

        ;; Set the super conference for conf-stat to new-conf.
        (lyskom-format-insert 'super-conf-for-is
                              conf-stat
                              new-conf)
        (if (not (blocking-do 'set-super-conf 
                              (conf-stat->conf-no conf-stat) 
                              (conf-stat->conf-no new-conf)))
            (lyskom-insert-string 'nope) ;+++ lyskom-errno
          (lyskom-insert-string 'done)
          (cache-del-conf-stat (conf-stat->conf-no conf-stat)))))))



;;; ================================================================
;;;                  Spara databasen - Save database
;;;

(def-kom-command kom-sync-database ()
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  "Save the LysKOM database.
You can only run this command if you have administrative rights.

See `kom-enable-adm-caps'."
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  (interactive)
  (if (and (>= (version-info->protocol-version lyskom-server-version-info) 8)
           (lyskom-ja-or-nej-p (lyskom-get-string 'really-sync)))
      (progn (lyskom-insert-string 'syncing-server)
             (lyskom-report-command-answer (blocking-do 'sync)))
    (setq lyskom-errno 12)
    (lyskom-report-command-answer nil)))


;;; ================================================================
;;;                  St{ng av servern - Shutdown

;;; Author: Inge Wallin

(def-kom-command kom-shutdown-server ()
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  "Shutdown the LysKOM server.
You can only run this command if you have administrative rights.

See `kom-enable-adm-caps'."
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  (interactive)
  (if (lyskom-ja-or-nej-p (lyskom-get-string 'really-shutdown))
      (progn
        (lyskom-insert-string 'closing-server)
        (lyskom-report-command-answer (blocking-do 'shutdown 0)))))


;;; ================================================================
;;;       \verg} till adm.mod - Enable administrator capabilities
;;;     \verg} till normalmod - Disable administrator capabilities

;;; Author: Inge Wallin


(def-kom-command kom-enable-adm-caps ()
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  "Enable the adminstrator commands for the current user.
You can use this command even if you don't have administrative rights
on the system, but you still won't be able to use privileged commands.

Use `kom-disable-adm-caps' to return to normal mode."
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  (interactive)
  (lyskom-enable-adm-caps (blocking-do 'enable 255)
                          (lyskom-get-string 'administrator)
                          t))


(def-kom-command kom-disable-adm-caps ()
  "Disable the LysKOM adminstrator commands for the current user."
  (interactive)
  (lyskom-enable-adm-caps (blocking-do 'enable 0)
                          (lyskom-get-string 'no-longer-administrator)
                          nil))

(defun lyskom-enable-adm-caps (answer string is-administrator)
  "Tell the user if the call succeded."
  (if answer
      (progn
        (lyskom-format-insert 'you-are-now string)
        (setq lyskom-is-administrator is-administrator))
    (lyskom-insert-string 'nope)))	;+++ lyskom-errno


;;; ================================================================
;;;         S{tt loginmeddelande - Set message of the day

;;; Author: Inge Wallin


(def-kom-command kom-set-motd ()
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  "Set the notice for the server.
You can only use this command if you have administrative rights.

See `kom-enable-adm-caps'."
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  (interactive)
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  (let* ((old-motd-text-stat (and (server-info->motd-of-lyskom lyskom-server-info)
                                 (blocking-do 'get-text-stat (server-info->motd-of-lyskom lyskom-server-info))))
         (old-motd-text (and (server-info->motd-of-lyskom lyskom-server-info)
                             (blocking-do 'get-text (server-info->motd-of-lyskom lyskom-server-info))))
         (str (and old-motd-text 
                   old-motd-text-stat
                   (text->decoded-text-mass old-motd-text old-motd-text-stat)))
         (recpt (if old-motd-text-stat
                    (lyskom-get-recipients-from-misc-list
                     (text-stat->misc-info-list old-motd-text-stat))
                  (apply 'nconc (mapcar (lambda (x) (list 'RECPT x)) 
                                        (and lyskom-server-info
                                             (server-info->kom-news-conf lyskom-server-info)
                                             (not (eq 0 (server-info->kom-news-conf lyskom-server-info)))
                                             (list (server-info->kom-news-conf lyskom-server-info))))))))

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    (lyskom-edit-text
     lyskom-proc
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     (apply 'lyskom-create-misc-list recpt)
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     (if (and str (string-match "\n" str))
         (substring str 0 (1- (match-end 0)))
       "")
     (if (and str (string-match "\n" str))
         (substring str (match-end 0))
       "")
     'lyskom-set-motd-2)))


;; Should really fix lyskom-edit text instead of the ugly IGNORE

(defun lyskom-set-motd-2 (text-no ignore)
  "Set motd of LysKOM to the newly created text TEXT-NO."
  (lyskom-insert-before-prompt
   (lyskom-format 'setting-motd text-no))
  (initiate-set-motd-of-lyskom 'background 'lyskom-set-motd-3
                               text-no text-no))


(defun lyskom-set-motd-3 (result text-no)
  "Handle the return from the initiate-set-motd-of-lyskom call."
  (if result
      (progn
        (lyskom-insert-before-prompt
         (lyskom-get-string (if (zerop text-no)
                                'removed-motd 
                              'set-motd-success)))
        (set-server-info->motd-of-lyskom lyskom-server-info text-no))
    (lyskom-insert-before-prompt
     (lyskom-get-string 'set-motd-failed))))


;;; ================================================================
;;;       Ta bort loginmeddelande - Remove message of the day

;;; Author: Inge Wallin


(def-kom-command kom-remove-motd ()
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  "Remove the notice for the LysKOM server.
You can only use this command if you have administrative rights.

See `kom-enable-adm-caps'."
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  (interactive)
  (lyskom-insert-string 'removing-motd)
  (initiate-set-motd-of-lyskom 'background 'lyskom-set-motd-3
                               0 0))

;;; ================================================================
;;;                  Kasta ut - force logout

;;; Author: Inge Wallin
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(def-kom-command kom-force-logout ()
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  "Force another session to log out.
You can log out any sessions logged on as users you are the
supervisor of. With administrative rights you can log out any
user."
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  (interactive)
  (let ((session (car-safe (lyskom-read-session-no
                            (lyskom-get-string 'who-to-throw-out)
                            nil nil t))))
    (cond ((> session 0)
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           (lyskom-format-insert 'throwing-out session)
           (lyskom-report-command-answer
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            (blocking-do 'disconnect session)))
          ((< session 0)
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           (lyskom-format-insert 'person-not-logged-in-r (- session) nil))
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          (t nil))))
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;;; ================================================================
;;;                  Skjut upp l{sning - postpone

;;; Author: Per Cederqvist


(def-kom-command kom-postpone (today)
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  "Postpone the reading of all but the last N texts in the current
conference. The postponed texts will be removed from the read list for
this session but return in your next session or when you do a
`kom-recover'.

A numeric prefix argument is the number of texts to read now. Without
a prefix argument this command will prompt for the number of texts."
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  (interactive (list
                (cond
                 ((null current-prefix-arg)
                  (lyskom-read-number 'postpone-prompt kom-postpone-default))
                 (t (prefix-numeric-value current-prefix-arg)))))

  (let ((len (read-list-length lyskom-reading-list))
        (finished nil))
    (while (and (not finished)
                (> len 0))
      (let ((type (read-info->type (read-list->first lyskom-reading-list))))
        (cond 
         ((memq type lyskom-review-types-list)
          (read-list-rotate lyskom-reading-list))
         ((memq type lyskom-comment-types-list)
          (set-read-list-del-first lyskom-reading-list))
         ((eq type 'CONF)
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	  (text-list->trim-head
	   (read-info->text-list (read-list->first lyskom-reading-list))
	   today)
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          (setq finished t))
         ((eq type 'RE-EDIT-TEXT))
         ((eq type 'PRI-SESSION))
         (t
          (signal 'lyskom-internal-error '("lyskom-remove-comment-chains")))))
      (-- len)))

  ;; Delete the 'CONF entry if we selected 0 entries.
  (cond
   ((zerop today)
    (read-list-delete-text nil lyskom-reading-list)
    (read-list-delete-text nil lyskom-to-do-list))))



;;; ================================================================
;;;              S{tt l{sniv} - Sess session priority

;;; Author: David K}gedal

(def-kom-command kom-set-session-priority (priority)
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  "Set the priority level of the current session and refetch all
memberships. Conferences whose priorities are lower than the session
priority will not be included when reading. This is useful to separate
conferences to read while at work from conferences to not read at
work.

A numeric prefix argument specifies the new session priority. Without
prefix argument, you will be prompted for a priority.

See `kom-default-session-priority'."
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  (interactive "P")
  (let ((pri (or priority
                 (lyskom-read-num-range 0
                                255
                                (lyskom-get-string 'set-session-priority)
                                t
                                (or kom-default-session-priority 100)))))
    (setq lyskom-session-priority pri)
    (lyskom-refetch)))



;;; ================================================================
;;;              Begrav lyskom-sessionen - kom-bury

;;; Author: Linus Tolke

(defun kom-bury () 
  "Puts the kom-session in the background."
  (interactive)
  (let ((session-name (buffer-name (current-buffer)))
        (buffer (current-buffer)))
    (bury-buffer)
    (while (and (string-match (regexp-quote session-name)
                              (buffer-name (current-buffer)))
                (not (eq buffer (current-buffer))))
      (bury-buffer))))


(defun lyskom-buffer-p (buf &optional may-be-dead)
  "Returns non-nil if BUF is an active LysKOM buffer
If optional second argument MAY-BE-DEAD is non-nil, this function returns t
whether the session is alive or not. Otherwise it checks that the session
is alive."
  (when (buffer-live-p buf)
    (save-excursion
      (set-buffer buf)
      (and (eq major-mode 'lyskom-mode)
           (boundp 'lyskom-proc)
           lyskom-proc
           (processp lyskom-proc)
           (or (and may-be-dead
                    (memq (process-status lyskom-proc) '(run open closed)))
               (memq (process-status lyskom-proc) '(run open)))))))


(defun lyskom-next-kom (buffer-list-name direction)
  "Internal version of kom-next-kom
BUFFER-LIST-NAME is the list of buffers to rotate through. It must be a 
name since this function may modify the list.
DIRECTION should be one of 'forward or 'backward and is the direction to
rotate through the buffer list.
Return-value: 'no-session if there is no suitable session to switch to
              'same-session if the current buffer is the only suitable one
              nil if everything went well"

  ;; Clean the buffer lists 

  (lyskom-clean-all-buffer-lists)

  (let ((current (lyskom-buffer-root-ancestor (current-buffer)))
        (buffer-list (symbol-value buffer-list-name))
        (result nil))

    ;; Figure out the start buffer. The target buffer will be the
    ;; following buffer in lyskom-buffer-list

    (cond
     ((null buffer-list) (setq result 'no-session
                               current nil))

     ;; If we are in a lyskom buffer that is in lyskom-buffer-list
     ;; switch from the current buffer. If unlisted, list it.
     ((lyskom-buffer-p current) 
      (unless (memq current buffer-list)
        (setq buffer-list (cons current buffer-list))))

     ;; If we are in a non-LysKOM buffer, the start buffer is the
     ;; last one in the list
     (t (setq current (car buffer-list))))

    ;; Rotate the buffer list so the target buffer is first

    (when current
      (cond ((eq direction 'forward)
             (setq buffer-list 
                   (lyskom-rotate-list buffer-list
                                       (car (cdr (memq current buffer-list))))))
            (t
             (setq buffer-list
                   (lyskom-rotate-list buffer-list
                                       (or (car (lyskom-preceding-cons 
                                                 buffer-list
                                                 current))
                                           (car (last buffer-list)))))))
      (set buffer-list-name buffer-list)

      ;; If the current buffer and the target buffer are the same
      ;; do nothing. Otherwise, flip around the buffers

      (if (eq (current-buffer) (car buffer-list))
          (setq result 'same-session)
        (lyskom-switch-to-kom-buffer (car buffer-list) current)
        (setq result nil)))
    result))

(def-kom-emacs-command kom-next-kom ()
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  "Pop up the next LysKOM-session.
This command can be run from any buffer to go to the next available
LysKOM session.

See `kom-previous-kom' and `kom-next-unread-kom' for related commands."
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  (interactive)
  (let ((result (lyskom-next-kom 'lyskom-buffer-list 'forward)))
    (cond ((eq result 'no-session)
           (error (lyskom-get-string 'no-lyskom-session)))
          ((eq result 'same-session)
           (if kom-next-kom-running-as-kom-command
               (lyskom-insert-before-prompt (lyskom-get-string
                                             'no-other-lyskom-r))
             (error (lyskom-get-string 'no-lyskom-session))))
          (t nil))))

(def-kom-emacs-command kom-previous-kom ()
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  "Pop up the previous LysKOM-session.
This command can be run from any buffer to go to the next available
LysKOM session.

See `kom-next-kom' and `kom-next-unread-kom' for related commands."