lyskom-rest.el 115 KB
Newer Older
1
;;;;; -*-coding: raw-text;-*-
Linus Tolke's avatar
Linus Tolke committed
2
3
;;;;;
;;;;; $Id$
4
;;;;; Copyright (C) 1991, 1996  Lysator Academic Computer Association.
Linus Tolke's avatar
Linus Tolke committed
5
6
7
8
9
;;;;;
;;;;; 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 
10
;;;;; the Free Software Foundation; either version 2, or (at your option) 
Linus Tolke's avatar
Linus Tolke committed
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
;;;;; 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. 
;;;;;
Per Cederqvist's avatar
.    
Per Cederqvist committed
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
;;;; ================================================================
;;;; ================================================================
;;;;
;;;; File: lyskom-rest.el
;;;;
;;;; This is the rest of what was once the entire source code of the
;;;; client. Now most of the source resides in other files. Eventually
;;;; the functions in here will be distributed out to other files.
;;;; Below follows the original header of the LysKOM elisp client:
;;;;
;;;; ================================================================
;;;;
;;;; Simple LysKOM elisp client.
;;;;
;;;; Originally written by Per Cederqvist.
;;;;
;;;; Heavily hacked by:
;;;;    Thomas Bellman
;;;;    Linus Tolke
;;;;    Inge Wallin
46
47
;;;;    David K}gedal
;;;;    David Byers
Per Cederqvist's avatar
.    
Per Cederqvist committed
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
;;;;   and others.
;;;;
;;;; Some ideas stolen from lpmud.el written by Lars Willf|r and Thomas Bellman
;;;;
;;;; Conventions:
;;;;
;;;;    All functions, variables etc follow one of these conventions:
;;;;		lyskom-		general functions.
;;;;		cache-		cache-routines.
;;;;		initiate-	call a service. (Might look up in cache)
;;;;		kom-		user kommands.
;;;;		lyskom-parse-	parse (part of) a reply from the server.
;;;;				these are found in parse.el
;;;;		lyskom-edit-	Things related to the editing of texts.
;;;;		{lyskom,kom}-edit-options-
;;;;				things related to editing options
;;;;				(found in flags.el)
;;;;		{lyskom,kom}-prioritize-
;;;;				things related to the prioritize
;;;;				buffer. The file is prioritize.el
;;;;		{lyskom,kom}-{completing-read,completing,complete}-
;;;;				things related to
;;;;				lyskom-completing-read. Found in
;;;;				completing-read.el 
;;;;		lyskom-*-hook   hooks.
;;;;
;;;;    Three plus-signs (+++) in the code marks a place where more
;;;;    work is needed.
;;;;

78
79
80
81
(eval-when-compile
  (require 'lyskom-command "command")
  (require 'lyskom-menus "menus")
  (require 'lyskom-clienttypes "clienttypes.el"))
David Kågedal's avatar
David Kågedal committed
82
83


84
85
86
87
(setq lyskom-clientversion-long 
      (concat lyskom-clientversion-long
	      "$Id$\n"))

88
89
(lyskom-external-function find-face)

90

Per Cederqvist's avatar
.    
Per Cederqvist committed
91
92
93
94
95
96
97
;;;; ================================================================
;;;;                             New errors.


(put 'lyskom-protocol-error 'error-conditions
     '(error lyskom-error lyskom-protocol-error))
(put 'lyskom-protocol-error 'error-message
98
     "LysKOM protocol error")
Per Cederqvist's avatar
.    
Per Cederqvist committed
99
100
101
102

(put 'lyskom-internal-error 'error-conditions
     '(error lyskom-error lyskom-internal-error))
(put 'lyskom-internal-error 'error-message
103
     "Internal LysKOM error")
Per Cederqvist's avatar
.    
Per Cederqvist committed
104

David Kågedal's avatar
David Kågedal committed
105
106
107
(put 'lyskom-format-error 'error-conditions
     '(error lyskom-error lyskom-format-error))
(put 'lyskom-internal-error 'error-message
108
     "Internal LysKOM format error")
David Kågedal's avatar
David Kågedal committed
109

Per Cederqvist's avatar
.    
Per Cederqvist committed
110

111
112
113
114
115
116
;;; ================================================================
;;;             Global variables
;;;

(defvar lyskom-unread-mode-line nil)

Per Cederqvist's avatar
.    
Per Cederqvist committed
117
118
119
120
121
122
123
124
125
126
;;; ================================================================
;;;             Error reporting from a number of commands.
;;;

;;; Author: Inge Wallin



(defun lyskom-get-error-text (errno)
  "Get a string which is the error ERRNO in plain text."
127
128
129
130
131
  (or
   (lyskom-get-string-internal (intern (concat "error-"
					       (number-to-string errno)))
			       'lyskom-error-texts)
   (lyskom-format 'error-not-found errno)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
132

133
(defun lyskom-report-command-answer (answer)
Per Cederqvist's avatar
.    
Per Cederqvist committed
134
135
136
137
138
139
  "Handles a void return from call to the server."
  (if answer 
      (lyskom-insert-string 'done)
    (lyskom-insert-string 'nope)
    (lyskom-format-insert 'error-code
			  (lyskom-get-error-text lyskom-errno)
David Byers's avatar
David Byers committed
140
141
			  lyskom-errno))
  answer)
Per Cederqvist's avatar
.    
Per Cederqvist committed
142
143
144
145
146
147
148


;;; ----------------------------------------------------------------
;;; Author: Aronsson

(defun lyskom-tell-internat (key)
  "Same as lyskom-tell-server, but use a key to a list of phrases."
David Kågedal's avatar
David Kågedal committed
149
150
151
  ;; The server at Lysator produces a lot of network traffic. The
  ;; solution should to be less verbose. This is very interesting
  ;; anymore, anyway.
Per Cederqvist's avatar
.    
Per Cederqvist committed
152
153
154
155
156
157
  (lyskom-tell-server (lyskom-tell-string key)))



;;; Resume operation after a crash.

David Kågedal's avatar
David Kågedal committed
158
159
(defun kom-recover (&optional refetch)
  "Try to recover from an error.
160
161
If the optional argument REFETCH is non-nil, all caches are cleared and
`lyskom-refetch' is called."
David Kågedal's avatar
David Kågedal committed
162
  (interactive "p")
David Kågedal's avatar
Bugfix    
David Kågedal committed
163
  (lyskom-init-parse lyskom-buffer)
Per Cederqvist's avatar
.    
Per Cederqvist committed
164
165
  (setq lyskom-call-data nil)
  (setq lyskom-pending-calls nil)
David Kågedal's avatar
David Kågedal committed
166
167
168
169
170
  (setq lyskom-output-queues (make-vector 10 nil))
  (let ((i 0))
    (while (< i 10)
      (aset lyskom-output-queues i (lyskom-queue-create))
      (++ i)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
171
172
  (setq lyskom-number-of-pending-calls 0)
  (setq lyskom-is-parsing nil)
173
174
175
  (when refetch
    (clear-all-caches)
    (lyskom-refetch))
Per Cederqvist's avatar
.    
Per Cederqvist committed
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
  (lyskom-tell-internat 'kom-tell-recover)
  (lyskom-end-of-command))


;;; ================================================================
;;;                      Run default command.


;;; Author: Tommy Persson

(defun kom-page-next-command ()
  "Scroll the bottom to the top and run the next command if it should be run"
  (interactive)
  (if (pos-visible-in-window-p (point-max))
      (progn
191
	(goto-char (point-max))
Per Cederqvist's avatar
.    
Per Cederqvist committed
192
	(recenter 0)
Lars Willför's avatar
Lars Willför committed
193
	(lyskom-next-command))
Per Cederqvist's avatar
.    
Per Cederqvist committed
194
195
    (recenter 0)
    (move-to-window-line -1)
Lars Willför's avatar
Lars Willför committed
196
    (lyskom-set-last-viewed)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
197
198


199
;;; Author: Lars Willf|r
Per Cederqvist's avatar
.    
Per Cederqvist committed
200
201
202
203

(defun kom-next-command ()
  "Run next command or scroll one page."
  (interactive)
Lars Willför's avatar
Lars Willför committed
204
205
206
207
  (if (pos-visible-in-window-p (point-max))
      (lyskom-next-command)
    (move-to-window-line -1)
    (lyskom-set-last-viewed)
208
209
    (lyskom-scroll)
    (if (< (window-start) lyskom-last-viewed)
David Byers's avatar
David Byers committed
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
        (lyskom-xemacs-or-gnu
         (let ((overlay (make-extent 
                         lyskom-last-viewed
                         (save-excursion (goto-char lyskom-last-viewed)
                                         (end-of-line)
                                         (forward-char 1)
                                         (point)))))
           (set-extent-face overlay 'kom-mark-face)
           (add-timeout 2 
                        'delete-extent
                        overlay))
         (let ((overlay (make-overlay 
                         lyskom-last-viewed
                         (save-excursion (goto-char lyskom-last-viewed)
                                         (end-of-line)
                                         (forward-char 1)
                                         (point)))))
           (overlay-put overlay 'face 'kom-mark-face)
           (run-at-time 2 nil
                        'delete-overlay
                        overlay))))))
Per Cederqvist's avatar
.    
Per Cederqvist committed
231
232
233
234
235

  
(defun kom-line-next-command ()
  "Run next command or scroll one line."
  (interactive)
Lars Willför's avatar
Lars Willför committed
236
237
238
239
240
  (if (pos-visible-in-window-p (point-max))
      (lyskom-next-command)
    (move-to-window-line 1)
    (lyskom-set-last-viewed)
    (lyskom-scroll)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
241
242


243
244
;;; Author: Per Cederqvist

Lars Willför's avatar
Lars Willför committed
245
(defun lyskom-next-command ()
246
  "Run next command."
247
  (let ((lyskom-doing-default-command t))
248
249
250
251
252
253
254
255
256
257
258
259
    (cond
     ((eq lyskom-command-to-do 'next-pri-text)
      (lyskom-view-priority-text))
     ((eq lyskom-command-to-do 'next-text)
      (kom-view-next-text))
     ((eq lyskom-command-to-do 'next-conf)
      (kom-go-to-next-conf))
     ((eq lyskom-command-to-do 'next-pri-conf)
      (lyskom-go-to-pri-conf))
     ((eq lyskom-command-to-do 'when-done)
      (let ((command (lyskom-what-to-do-when-done)))
	(cond
David Byers's avatar
David Byers committed
260
261
	 ((or (stringp command)
              (vectorp command))
262
	  (execute-kbd-macro command))
David Byers's avatar
David Byers committed
263
264
         ((commandp command) (call-interactively command))
         (t (lyskom-start-of-command nil) (lyskom-end-of-command)))))
265
266
267
268
     ((eq lyskom-command-to-do 'unknown)
      (lyskom-insert
       (lyskom-get-string 'wait-for-server)))
     (t (signal 'lyskom-internal-error '(kom-next-command))))))
Per Cederqvist's avatar
.    
Per Cederqvist committed
269
270
271
272
273
274
275
276


;;; ================================================================
;;;                              View text.


(defun kom-initial-digit-view ()
  (interactive)
277
278
  (setq unread-command-events (cons last-command-event
                                    unread-command-events))
Per Cederqvist's avatar
.    
Per Cederqvist committed
279
280
281
282
283
284
  (call-interactively 'kom-view nil))


(defun kom-view (text-no)
  "View text number TEXT-NO."
  (interactive "P")
285
286
287
288
289
290
291
292
293
294
295
296
297
298
  (unwind-protect
      (progn
	(let ((kom-page-before-command nil))
	  (lyskom-start-of-command 'kom-view)
	  (lyskom-tell-internat 'kom-tell-review)
	  )
	(if (setq text-no (cond ((null text-no) nil)
				((listp text-no) (car text-no))
				(t text-no)))
	    nil
	  (setq text-no (lyskom-read-number (lyskom-get-string 'review-text-q)
					    lyskom-current-text)))
	(if (or (not (listp kom-page-before-command))
		(memq 'kom-view kom-page-before-command))
David Kågedal's avatar
David Kågedal committed
299
	    (recenter 1))
300
301
302
303
	(lyskom-tell-internat 'kom-tell-review)
	(lyskom-format-insert 'review-text-no text-no)
	(lyskom-view-text text-no))
    (lyskom-end-of-command)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331


;;;; ================================================================
;;;;                         View next text.


(defun kom-view-next-new-text ()
  "Display next new text (putting all review constructs at the end of this conf)."
  (interactive)
  (let ((len (read-list-length lyskom-reading-list))
	(finished nil))
    (while (and (not finished)
		(> len 1))
      (let ((type (read-info->type (read-list->first lyskom-reading-list))))
	(cond 
	 ((or (eq type 'REVIEW)
	      (eq type 'REVIEW-TREE)
	      (eq type 'REVIEW-MARK))
	  (read-list-rotate lyskom-reading-list))
	 ((or (eq type 'COMM-IN)
	      (eq type 'FOOTN-IN))
	  (set-read-list-del-first lyskom-reading-list))
	 (t 
	  (setq finished t))))
      (-- len)))
  (kom-view-next-text))


332
333
;;; Modified to handle filters

David Kågedal's avatar
David Kågedal committed
334
(def-kom-command kom-view-next-text ()
Per Cederqvist's avatar
.    
Per Cederqvist committed
335
336
  "Display next text (from lyskom-reading-list)."
  (interactive)
David Kågedal's avatar
David Kågedal committed
337
338
339
340
341
342
343
344
345
  (lyskom-tell-internat 'kom-tell-read)
  (let ((action 'next-text))
    (while (eq action 'next-text)
      (if (read-list-isempty lyskom-reading-list)
	  (progn
	    (if (/= 0 lyskom-current-conf)
		(lyskom-insert-string 'completely-read-conf)
	      (lyskom-insert-string 'not-in-any-conf))
	    (setq action nil))
346
	      
David Kågedal's avatar
David Kågedal committed
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
	(progn
	  (let* ((tri (read-list->first lyskom-reading-list))
		 (text-no (car (cdr (read-info->text-list tri))))
		 (type (read-info->type tri))
		 (priority (read-info->priority
			    (read-list->first lyskom-reading-list)))
		 (is-review-tree (eq type 'REVIEW-TREE))
		 (is-review (or (eq type 'REVIEW)
				(eq type 'REVIEW-MARK)
				is-review-tree))
		 (mark-as-read (not is-review)))
	    (if is-review
		(delq text-no 
		      (read-info->text-list tri))) ;First entry only
	    (setq action
		  (lyskom-view-text text-no mark-as-read 
				    (and kom-read-depth-first
					 (not is-review))
				    (read-info->conf-stat
				     (read-list->first
				      lyskom-reading-list))
				    priority
				    is-review-tree
370
371
372
				    (not is-review)
				    (or (eq type 'REVIEW)
					(eq type 'REVIEW-MARK))))
David Kågedal's avatar
David Kågedal committed
373
374
375
376
	    (if mark-as-read
		(lyskom-is-read text-no)
	      (read-list-delete-text nil lyskom-reading-list)
	      (read-list-delete-text nil lyskom-to-do-list))))))))
377
  
Per Cederqvist's avatar
.    
Per Cederqvist committed
378

379
;;; Modified to handle filters
Per Cederqvist's avatar
.    
Per Cederqvist committed
380

David Kågedal's avatar
David Kågedal committed
381
;; This is horribly ugly. It acts like a user command, but it isn't.
Per Cederqvist's avatar
.    
Per Cederqvist committed
382
383
384
(defun lyskom-view-priority-text ()
  "Display the first text from the next conference on the lyskom-to-do-list."
  (lyskom-start-of-command 'kom-view-next-text)
David Kågedal's avatar
David Kågedal committed
385
386
387
388
389
390
391
392
393
394
395
396
  (unwind-protect
      (progn
	(lyskom-tell-internat 'kom-tell-read)
	(let* ((tri (read-list->first lyskom-to-do-list))
	       (priority (read-info->priority
			  (read-list->first lyskom-reading-list)))
	       (text-no (car (text-list->texts (read-info->text-list tri)))))
	  (lyskom-is-read text-no)
	  (lyskom-view-text text-no t nil (read-info->conf-stat tri) 
			    priority nil t))
	(lyskom-wait-queue 'main))
    (lyskom-end-of-command)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
397
398
399


(defun lyskom-is-read (text-no)
Per Cederqvist's avatar
Per Cederqvist committed
400
  "Remove TEXT-NO from the list of texts to read.
Per Cederqvist's avatar
.    
Per Cederqvist committed
401
Deletes TEXT-NO from lyskom-reading-list and lyskom-to-do-list.
Per Cederqvist's avatar
Per Cederqvist committed
402
403
404
Adds info in lyskom-membership.

This function only modifies the internal state of the client. It does
Per Cederqvist's avatar
Per Cederqvist committed
405
406
not mark the text as read in the server. That function is performed by
lyskom-mark-as-read."
Per Cederqvist's avatar
.    
Per Cederqvist committed
407
408
  (read-list-delete-text text-no lyskom-reading-list)
  (read-list-delete-text text-no lyskom-to-do-list)
David Byers's avatar
David Byers committed
409
  (initiate-get-text-stat 'main 'lyskom-is-read-handler text-no)
410
  (setq lyskom-normally-read-texts (cons text-no lyskom-normally-read-texts)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
411
412
413
414
415


(defun lyskom-is-read-handler (text-stat)
  "Update lyskom-membership for all recipients to TEXT-STAT."
  (lyskom-traverse
416
417
      misc (text-stat->misc-info-list text-stat)
    (if (or (eq 'RECPT (misc-info->type misc))
David Byers's avatar
David Byers committed
418
            (eq 'BCC-RECPT (misc-info->type misc))
419
	    (eq 'CC-RECPT (misc-info->type misc)))
420
421
	(let ((membership (lyskom-try-get-membership
			   (misc-info->recipient-no misc))))
422
423
424
425
426
	  (if membership
	      (set-membership->read-texts
	       membership
	       (vconcat (vector (misc-info->local-no misc))
			(membership->read-texts membership))))))))
Per Cederqvist's avatar
.    
Per Cederqvist committed
427
428
429
430
431
432


;;; ================================================================
;;;                        Go to next conf.


433
(def-kom-command kom-go-to-next-conf ()
Per Cederqvist's avatar
.    
Per Cederqvist committed
434
435
436
437
438
  "Go to next conf.
Take first conf from lyskom-to-do-list and copy it to lyskom-reading-list.
Tell server what the user is doing. If the user is reading a conf it is
moved last on lyskom-to-do-list, with priority 0."
  (interactive)
439
440
441
  (when (lyskom-check-go-to-conf)
    (lyskom-maybe-move-unread t)
    (lyskom-go-to-next-conf)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
442
443
444
445
446
447
448


(defun lyskom-go-to-pri-conf ()
  "Go to the conf with higher priority.
This differs from kom-go-to-next-conf only in the place where the yet unread 
in the current conf is placed."
  (lyskom-start-of-command 'kom-go-to-next-conf)
449
450
451
452
  (when (lyskom-check-go-to-conf)
    (lyskom-maybe-move-unread nil)
    (lyskom-go-to-next-conf)
    (lyskom-end-of-command)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
453
454
455
456
457
458


(defun lyskom-go-to-next-conf ()
  "Actually go to the next conference on the lyskom-to-do-list"
  ;; Copy first element on lyskom-to-do-list to lyskom-reading-list.
  (if (not (read-list-isempty lyskom-to-do-list))
459
460
461
462
463
464
465
466
467
      (let ((conf-stat (read-info->conf-stat 
                        (read-list->first lyskom-to-do-list))))
        (when conf-stat
          (lyskom-set-mode-line conf-stat)
          (read-list-enter-first
           (read-list->first lyskom-to-do-list)
           lyskom-reading-list)
          (lyskom-enter-conf conf-stat 
                             (read-list->first lyskom-to-do-list))))
Per Cederqvist's avatar
.    
Per Cederqvist committed
468
    (lyskom-insert-string 'all-conf-unread-r)
469
    (lyskom-set-mode-line (lyskom-get-string 'all-conf-unread-s))))
Per Cederqvist's avatar
.    
Per Cederqvist committed
470
471


472
(defun lyskom-maybe-move-unread (bury)
Linus Tolke's avatar
Linus Tolke committed
473
  "Empty the reading list.
474
If the argument BURY is non-nil and there are unread articles left in the
Linus Tolke's avatar
Linus Tolke committed
475
reading list then the conf is inserted last in the to do list."
Per Cederqvist's avatar
.    
Per Cederqvist committed
476
477
  (if (not (read-list-isempty lyskom-reading-list))
      (progn
478
	(if bury
Per Cederqvist's avatar
.    
Per Cederqvist committed
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
	    (let ((conf-no nil)
		  (r 0))
	      (while (and (not conf-no)
			  (< r (read-list-length lyskom-reading-list)))
		(if (eq (read-info->type (read-list->nth lyskom-reading-list 
							 r))
			'CONF)
		    (setq conf-no (conf-stat->conf-no 
				   (read-info->conf-stat
				    (read-list->nth lyskom-reading-list r))))
		  (++ r)))
	      (if conf-no
		  (progn
		    (read-list-delete-read-info conf-no lyskom-to-do-list)
		    (read-list-enter-first (read-list->nth lyskom-reading-list
							   r)
					   lyskom-to-do-list)
		    (read-list-rotate lyskom-to-do-list)))))
	(set-read-list-empty lyskom-reading-list))))


500
501
502
503
504
505
506
507
508
509
(defun lyskom-check-go-to-conf (&optional conf)
  "Check if it is OK to go to conf CONF (a conf-stat).
It is assumed that lyskom-pers-no is a member of the conference.
This function interacts with the buffer and the user.

If CONF is nil, check the first conf on the to-do list."
  (let* ((conf-stat (or conf
                        (read-info->conf-stat 
                         (read-list->first lyskom-to-do-list))))
         (mship (and conf-stat 
David Byers's avatar
David Byers committed
510
                     (lyskom-get-membership (conf-stat->conf-no conf-stat) t)))
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
         (type nil)
         (continue t))
    (when (and conf-stat mship)
      (setq type (membership->type mship))

      (when (membership-type->invitation type)
        ;;; State the invitation,give the user a chance to accept it
        ;;; Leave the conf if the user does not want it
        (lyskom-format-insert 'your-invited
                              conf-stat
                              (membership->created-by mship))
        (if (lyskom-j-or-n-p (lyskom-get-string 'accept-invitation))
            (progn
              (set-membership-type->invitation type nil)
              (initiate-set-membership-type 'main
                                            nil
                                            lyskom-pers-no
                                            (conf-stat->conf-no conf-stat)
                                            (membership->type mship))
              (setq continue t))
          (progn
            (lyskom-sub-member (blocking-do 'get-pers-stat lyskom-pers-no)
                               conf-stat)
            (setq continue nil)
            )))

      (when (membership-type->secret type)
        (lyskom-format-insert-before-prompt 'bug-secret-mship conf-stat))

      (when (membership-type->passive type)
        ;;; Offer the user a chance to become an active member
        ;;; If the offer is refused, boot the user off the conference
        (lyskom-format-insert 'enter-passive conf-stat)
        (setq continue nil)
        (if (lyskom-j-or-n-p (lyskom-format 'convert-passive conf-stat))
            (progn
              (set-membership-type->passive type nil)
              (initiate-set-membership-type 'main
                                            nil 
                                            lyskom-pers-no
                                            (conf-stat->conf-no conf-stat)
                                            (membership->type mship))
              (setq continue t))
          (progn
            (setq continue nil))))
      )
    
    ;;; Return the result
    continue))

Per Cederqvist's avatar
.    
Per Cederqvist committed
561
562
563
564
565
(defun lyskom-enter-conf (conf-stat read-info)
  "Tell server which conf the user is reading.
Prints the name and amount of unread in the conference we just went to 
according to the value of kom-print-number-of-unread-on-entrance.
Args: CONF-STAT READ-INFO"
David Byers's avatar
David Byers committed
566
567
568
  (lyskom-run-hook-with-args 'lyskom-change-conf-hook
                             lyskom-current-conf
                             (conf-stat->conf-no conf-stat))
Per Cederqvist's avatar
.    
Per Cederqvist committed
569
570
  (initiate-pepsi 'main nil (conf-stat->conf-no conf-stat))
  (setq lyskom-current-conf (conf-stat->conf-no conf-stat))
571
  (let ((num-unread (text-list->length (read-info->text-list read-info))))
572
    (lyskom-format-insert (if (not kom-print-number-of-unread-on-entrance)
573
574
575
576
577
578
                              'enter-conf
                            (if (= num-unread 1)
                                'one-unread
                              'several-unread))
                          conf-stat
                          num-unread)))  
Per Cederqvist's avatar
.    
Per Cederqvist committed
579
580
581
582
583



;;;================================================================

584
585
586
;;; in vars.el:
;(defvar lyskom-sessions-with-unread nil
;  "Global variable. List of lyskom-sessions with unread articles.")
587
588
589
590
591
592
593
;;;Must be called after lyskom-get-string is defined. Also after running 
;;;load hooks.
;;;(or (assq 'lyskom-sessions-with-unread minor-mode-alist)
;;;    (setq minor-mode-alist (cons (list 'lyskom-sessions-with-unread 
;;;			       		  (lyskom-get-string 'mode-line-unread))
;;;				 minor-mode-alist)))

Per Cederqvist's avatar
.    
Per Cederqvist committed
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609

(defun lyskom-set-mode-line (&optional conf)
  "Sets mode-line-conf-name to the name of the optional argument conf CONF.
CONF can be a a conf-stat or a string."
  (let ((name (cond
	       ((null conf) 
		(if (zerop lyskom-current-conf)
		    (lyskom-get-string 'not-present-anywhere)
		  (initiate-get-conf-stat 'modeline 'lyskom-set-mode-line
					  lyskom-current-conf)
		  nil))
	       ((stringp conf) conf)
	       ((lyskom-conf-stat-p conf)
		(conf-stat->name conf))
	       (t "")))
	(unread -1)
610
	(total-unread 0)
611
	(letters 0)
612
	(len 0)
Per Cederqvist's avatar
.    
Per Cederqvist committed
613
614
615
	(read-info-list nil))

    (if (null name)
616
617
618
619
620
621
622
623
	nil				; We didn't have the name.

      ;; Set unread to the number of unread texts in CONF.
      (if (lyskom-conf-stat-p conf)
	  (progn
	    (setq read-info-list 
		  (read-list->all-entries lyskom-to-do-list))

David Kågedal's avatar
David Kågedal committed
624
625
	    ;; This was weird. Someone had begun to write an if, but
	    ;; this was all there was: (if 
626
627
628
	    (while read-info-list
	      (if (read-info->conf-stat (car read-info-list))
		  (progn
629
630
		    (setq len (text-list->length
			       (read-info->text-list (car read-info-list))))
631
632
633
634
		    (if (= (conf-stat->conf-no conf)
			   (conf-stat->conf-no 
			    (read-info->conf-stat (car read-info-list))))
			(setq unread len))
635
636
637
638
		    (if (= lyskom-pers-no
			   (conf-stat->conf-no 
			    (read-info->conf-stat (car read-info-list))))
			(setq letters len))
639
		    (setq total-unread (+ total-unread len))))
David Kågedal's avatar
David Kågedal committed
640
	      (setq read-info-list (cdr read-info-list)))))
641
642
      (if (= unread -1)
	  (setq unread 0))
David Kågedal's avatar
David Kågedal committed
643
      
644
645
646
      (if (null name)
	  nil
	(setq mode-line-conf-name 
David Kågedal's avatar
David Kågedal committed
647
648
649
650
651
652
653
654
655
656
	      (substring (concat
			  (if (lyskom-conf-stat-p conf)
			      (if (> lyskom-session-priority 0)
				  (format "(%d/%d:%d) "
					  unread total-unread
					  lyskom-session-priority)
				(format "(%d/%d) " unread total-unread))
			    "")
			  name
			  (make-string 27 ? ))
657
			 0 27)))
David Kågedal's avatar
David Kågedal committed
658
      
659
660
      (if (zerop total-unread)
	  (setq lyskom-sessions-with-unread
661
662
		(delq lyskom-buffer lyskom-sessions-with-unread))
	(or (memq lyskom-buffer lyskom-sessions-with-unread)
663
	    (setq lyskom-sessions-with-unread
664
		  (cons lyskom-buffer lyskom-sessions-with-unread))))
665
666
      (if (zerop letters)
	  (setq lyskom-sessions-with-unread-letters
667
668
		(delq lyskom-buffer lyskom-sessions-with-unread-letters))
	(or (memq lyskom-buffer lyskom-sessions-with-unread-letters)
669
	    (setq lyskom-sessions-with-unread-letters
670
		  (cons lyskom-buffer lyskom-sessions-with-unread-letters)))))
David Kågedal's avatar
David Kågedal committed
671
    (force-mode-line-update)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
672
673
674
675
676
677


;;; ================================================================

;;; +++Where should this be moved???

David Byers's avatar
David Byers committed
678
(defun lyskom-try-get-membership (conf-no &optional want-passive)
Per Cederqvist's avatar
.    
Per Cederqvist committed
679
  "Returns non-nil if conference CONF-NO is present on lyskom-membership.
680
681
682
683
684
The value is actually the membership for the conference.

For foreground functions, lyskom-get-membership should probably be used
instead.

David Byers's avatar
David Byers committed
685
686
687
This function does not use blocking-do.

Optional argument mship-list is the membership list to look in."
Per Cederqvist's avatar
.    
Per Cederqvist committed
688
689
690
691
692
693
  (let ((list lyskom-membership)
	(found nil))
    (while (and (not found) (not (null list)))
      (if (= conf-no (membership->conf-no (car list)))
	  (setq found (car list)))
      (setq list (cdr list)))
David Byers's avatar
David Byers committed
694
695
696
697
698
    (if (and found
             (or want-passive
                 (not (membership-type->passive (membership->type found)))))
        found
      nil)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
699

David Byers's avatar
David Byers committed
700
(defun lyskom-get-membership (conf-no &optional want-passive)
701
702
703
704
  "Get the membership for CONF-NO, or nil if the user is not a member of
CONF-NO.

If the membership list is not fully prefetched and the membership can't be
705
found in lyskom-membership, a blocking call to the server is made."
David Byers's avatar
David Byers committed
706
  (or (lyskom-try-get-membership conf-no want-passive)
707
708
709
710
711
      (and (not (lyskom-membership-is-read))
	   (let ((membership
		  (blocking-do 'query-read-texts lyskom-pers-no conf-no)))
	     (if (and membership (lyskom-visible-membership membership))
		 (lyskom-add-membership membership conf-no))
David Byers's avatar
David Byers committed
712
713
714
715
716
717
    (if (and membership
             (or want-passive
                 (not (membership-type->passive
                       (membership->type membership)))))
        membership
      nil)))))
718
719


Per Cederqvist's avatar
.    
Per Cederqvist committed
720
721
722
723
;;;; ================================================================
;;;;                   Scrolling and text insertion.


David Kågedal's avatar
David Kågedal committed
724
725
726
727
728
(defun lyskom-trim-buffer ()
  "Trim the size of a lyskom buffer to lyskom-max-buffer-size"
  (save-excursion
    (if (and kom-max-buffer-size
	     (> (buffer-size) kom-max-buffer-size))
729
730
	(let ((delchars (- (buffer-size) kom-max-buffer-size))
	      (inhibit-read-only t))
David Kågedal's avatar
David Kågedal committed
731
732
733
734
735
	  (goto-char (point-min))
	  (while (< (point) delchars)
	    (forward-line 1))
	  (delete-region (point-min) (point))))))

Per Cederqvist's avatar
.    
Per Cederqvist committed
736
737
738
739
740
741
742
743
744
745
746
(defun lyskom-scroll ()
  "Scroll screen if necessary.
The position lyskom-last-viewed will always remain visible."
  ;; Find a window to scroll. Scroll the selected window if that shows LysKOM.
  ;; Otherwise scroll any window currently showing LysKOM.
  (let ((win
	 (cond
	  ((eq (window-buffer (selected-window)) (current-buffer))
	   (selected-window))
	  (t				;(get-buffer-window (current-buffer))
	   nil))))
Lars Willför's avatar
Lars Willför committed
747
748
749
750
751
752
753
754
755
756
    (if (and win			;Do nothing if no window showed LysKOM.
	     (not (pos-visible-in-window-p (point-max))))
	(progn
	  (goto-char (point-max))
	  (recenter -1)
	  (if (not (pos-visible-in-window-p lyskom-last-viewed))
	      (progn
		(set-window-start win lyskom-last-viewed)
		(move-to-window-line -1)
		(vertical-motion 1)
David Byers's avatar
David Byers committed
757
758
759
760
761
762
763
764
		(when (not (pos-visible-in-window-p))
		    (forward-char -1)
                    (when (> (current-column)
                             (window-width))
                      (backward-char (+ (- (current-column)
                                            (window-width))
                                        2)))
                    )))))))
Per Cederqvist's avatar
.    
Per Cederqvist committed
765
	
David Byers's avatar
David Byers committed
766
767
768
769
770
771
772
773
774
775
776
;;;
;;; Thanks to the stupid danish fool who wrote the widget package, we
;;; have to do it this way, because w3 uses widgets, and because
;;; widgets use overlays, and because overlays aren't copied between
;;; buffers. If the idiot danish flaming asshole had used text
;;; properties or something equally sensible instead, we could have
;;; managed without this shit.
;;;
;;; (Me, upset? Why would you think *that*?)
;;;

Per Cederqvist's avatar
.    
Per Cederqvist committed
777

778
(defun lyskom-do-insert (string)
David Byers's avatar
David Byers committed
779
  (let ((start (point)))
780
781
782
783
784
785
786
787
788
789
790
791
    (insert string)
    (let ((bounds (next-text-property-bounds 1 (max 1 (1- start))
                                             'special-insert))
          (next (make-marker))
          (fn nil))
      (while bounds
        (set-marker next (cdr bounds))
        (setq fn (get-text-property (car bounds) 'special-insert))
        (remove-text-properties (car bounds) (cdr bounds)
                                '(special-insert))
        (condition-case val
            (funcall fn (car bounds) (cdr bounds))
David Byers's avatar
David Byers committed
792
          (error (apply 'message "%S" val)))
793
794
795
796
797
        (setq start next)
        (setq bounds (next-text-property-bounds 1 start
                                                'special-insert))))
    ))

David Byers's avatar
David Byers committed
798
799


Per Cederqvist's avatar
.    
Per Cederqvist committed
800
801
(defun lyskom-insert (string)
  "Insert STRING last in current buffer.
802
803
804
805
Leaves the point at the end of the buffer if possible without
scrolling past lyskom-last-viewed (generally the most recent prompt.)
Leaves the point at the end of the window if not possible. If buffer
is not on screen then doesn't move point.
806
The text is converted according to the value of kom-emacs-knows-iso-8859-1."
David Kågedal's avatar
David Kågedal committed
807
808
809
  (let ((was-at-max (= (save-excursion (end-of-line) (point)) (point-max))))
    (save-excursion
      (goto-char (point-max))
810
      (let ((inhibit-read-only t))
David Byers's avatar
David Byers committed
811
        (lyskom-do-insert string))
David Kågedal's avatar
David Kågedal committed
812
813
814
815
816
817
      (lyskom-trim-buffer))
    (let ((window (get-buffer-window (current-buffer))))
      (if (and window was-at-max)
	  (if (pos-visible-in-window-p (point-max) window)
	      (goto-char (point-max))
	    (and kom-continuous-scrolling (lyskom-scroll)))))))
818

Per Cederqvist's avatar
.    
Per Cederqvist committed
819

David Byers's avatar
David Byers committed
820

821
822
823
824
(defun lyskom-insert-at-point (string)
  "Insert STRING in the current buffer at point.
The text is converted according to the value of
kom-emacs-knows-iso-8859-1."
825
  (let ((inhibit-read-only t))
David Byers's avatar
David Byers committed
826
    (lyskom-do-insert string))
827
828
  (lyskom-trim-buffer))  

Per Cederqvist's avatar
.    
Per Cederqvist committed
829
830
831
832

(defun lyskom-insert-before-prompt (string)
  "Insert STRING just before the prompt of if no prompt then just buffers.
If prompt on screen then do the scroll if necessary.
833
The strings buffered are printed before the prompt by lyskom-update-prompt."
834
835
836
837
838
839
840
841
842
843
844
845
  ;;
  ;; This is the policy for moving point:
  ;;
  ;; old-point-max is the point-max before the text is inserted
  ;; new-point-max is the point-max after the text is inserted
  ;;
  ;; If point /= old-point-max, leave the point where it is, and don't
  ;; scroll the window.
  ;;
  ;; If point = old-point-max, set it to new-point-max, and if the
  ;; buffer is in a window, make sure that point is visible.
  ;;
Per Cederqvist's avatar
.    
Per Cederqvist committed
846
847
  (cond
   ((and lyskom-executing-command
848
         (not (eq lyskom-is-waiting t)))
Per Cederqvist's avatar
Per Cederqvist committed
849
850
    ;; Don't insert the string until the current command is finished.
    (if (null lyskom-to-be-printed-before-prompt)
851
        (setq lyskom-to-be-printed-before-prompt (lyskom-queue-create)))
852
    (lyskom-queue-enter lyskom-to-be-printed-before-prompt 
853
                        (list string)))
854
   (t
855
856
    ;; For some reaseon save-excursion doesn't work as expected
    (let ((oldpoint (point-marker)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
857
      (goto-char (point-max))
858
859
      (beginning-of-line)
      (let ((inhibit-read-only t))
David Byers's avatar
David Byers committed
860
	(lyskom-do-insert string))
861
      (goto-char oldpoint))
862
863
864
865
    (let ((window (get-buffer-window (current-buffer))))
      (if (and window
	       (not (pos-visible-in-window-p (point) window)))
	  ;; This mease that the prompt has been pushed off the bottom
866
867
868
	  (save-selected-window
	    (select-window window)
	    (recenter -1)))))))
869
      
Per Cederqvist's avatar
.    
Per Cederqvist committed
870
871
872
873
874

(defun lyskom-message (format-string &rest args)
  "Like message, but converts iso-8859/1 texts to swascii if necessary.
Args: FORMAT-STRING &rest ARGS"
  (let ((str (apply 'format format-string args)))
875
    (message "%s" str)))
Per Cederqvist's avatar
.    
Per Cederqvist committed
876
877


878
879
880
881
(defun lyskom-error (format-string &rest args)
  "Like error, but converts iso-8859/1 texts to swascii if necessary.
Args: FORMAT-STRING &rest ARGS"
  (let ((str (apply 'format format-string args)))
882
    (error "%s" str)))
883
884


Lars Willför's avatar
Lars Willför committed
885
886
887
888
889
890
(defun lyskom-set-last-viewed ()
  (save-excursion
    (vertical-motion 0)
    (setq lyskom-last-viewed (point))))


Per Cederqvist's avatar
.    
Per Cederqvist committed
891
892
893
;;; ================================================================
;;;                  Extended string formatting

894
895
896
;;; Author: David Byers
;;; Original code: Inge Wallin

Per Cederqvist's avatar
.    
Per Cederqvist committed
897

898
(defvar lyskom-format-format
David Byers's avatar
David Byers committed
899
  "%\\(=\\)?\\(-?[0-9]+\\)?\\(#\\([0-9]+\\)\\)?\\(:\\)?\\(&\\)?\\([][@MmPpnrtsdoxcCSDF?]\\)"
900
  "regexp matching format string parts.")
Per Cederqvist's avatar
.    
Per Cederqvist committed
901
902
903

(defun lyskom-insert-string (atom)
 "Find the string corresponding to ATOM and insert it into the LysKOM buffer." 
David Byers's avatar
David Byers committed
904
905
906
 (if (stringp atom)
     (lyskom-insert atom)
   (lyskom-insert (lyskom-get-string atom))))
Per Cederqvist's avatar
.    
Per Cederqvist committed
907

908
(defun lyskom-format (format-string &rest argl)
909
  (format-state->result (lyskom-do-format format-string argl)))
910
911

(defun lyskom-format-insert (format-string &rest argl)
912
913
  "Format and insert a string according to FORMAT-STRING.
The string is inserted at the end of the buffer with `lyskom-insert'."
914
  (let* ((state (lyskom-do-format format-string argl t))
David Kågedal's avatar
David Kågedal committed
915
916
917
	 ;; We have to use a marker, because lyskom-insert may trim
	 ;; the buffer size.
	 (start (point-max-marker))
918
	 (deferred (format-state->delayed-content state)))
919
    (lyskom-insert (format-state->result state))
920
921
922
923
924
925
    (while deferred
      (let ((defer-info (car deferred))
	    (m (make-marker)))
	(set-marker m (+ start (defer-info->pos defer-info)))
	(set-defer-info->pos defer-info m)			     
	(lyskom-defer-insertion defer-info)
David Kågedal's avatar
David Kågedal committed
926
927
	(setq deferred (cdr deferred))))
    (set-marker start nil)))
928

929
930
931
932
933
(defun lyskom-format-insert-at-point (format-string &rest argl)
  "Format and insert a string according to FORMAT-STRING.
The string is inserted at point."
  (let* ((state (lyskom-do-format format-string argl t))
	 (start (point))
934
	 (deferred (format-state->delayed-content state)))
935
    (lyskom-insert-at-point (format-state->result state))
936
937
938
939
940
941
942
    (while deferred
      (let ((defer-info (car deferred))
	    (m (make-marker)))
	(set-marker m (+ start (defer-info->pos defer-info)))
	(set-defer-info->pos defer-info m)			     
	(lyskom-defer-insertion defer-info)
	(setq deferred (cdr deferred))))))
943

944
(defun lyskom-format-insert-before-prompt (format-string &rest argl)
David Kågedal's avatar
David Kågedal committed
945
946
947
948
949
950
951
952
  "Format and insert a string according to FORMAT-STRING.
The string is inserted just before the prompt, and if the prompt is not
currently visible the text is queued to be inserted when the prompt
reappears.

Note that it is not allowed to use deferred insertions in the text."
  (lyskom-insert-before-prompt
   (format-state->result (lyskom-do-format format-string argl))))
953
954


David Kågedal's avatar
David Kågedal committed
955
(defun lyskom-do-format (format-string &optional argl allow-defer)
956
  "Do the actual formatting and return the resulting format-state."
957
958
959
960
961
962
963
964
  (let ((fmt (cond ((stringp format-string) format-string)
		   ((symbolp format-string) (lyskom-get-string 
					     format-string))))
	(state nil))
    (if (null fmt)
        (signal 'lyskom-internal-error (list 'lyskom-format-insert
                                             ": bad format string"))
      (save-excursion
David Kågedal's avatar
Bugfix    
David Kågedal committed
965
966
        (if (and (boundp 'lyskom-buffer)
		 lyskom-buffer)
David Kågedal's avatar
David Kågedal committed
967
            (set-buffer lyskom-buffer))
David Kågedal's avatar
David Kågedal committed
968
969
970
971
972
	(condition-case error
	    (setq state (lyskom-format-aux (make-format-state
					    fmt
					    0
					    argl
973
					    "")
David Kågedal's avatar
David Kågedal committed
974
					   allow-defer))
David Kågedal's avatar
David Kågedal committed
975
976
977
	  (lyskom-format-error
	   (error "LysKOM internal error formatting %s: %s%s"
		  format-string (nth 1 error) (nth 2 error))))))
978
    state))
979
980
981



David Byers's avatar
David Byers committed
982
983
984
985
986
;;;
;;; If you add a format letter, for goodness' sake, don't forget to
;;; att it to the regexp above too!
;;;

987
988


David Kågedal's avatar
David Kågedal committed
989
(defun lyskom-format-aux (format-state allow-defer)
990
991
992
993
994
995
  (let ((format-length (length (format-state->format-string format-state)))
        (arg-no nil)
        (pad-length nil)
        (format-letter nil)
        (colon-flag nil)
        (equals-flag nil)
996
        (face-flag nil)
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
        (abort-format nil))

    ;;
    ;;  Eat the format string bit by bit
    ;;

    (while (and (not abort-format)
                (< (format-state->start format-state)
                   format-length))

      ;;
      ;;    Look for a format letter. If there is none, finish up,
      ;;    otherwise handle each letter separately
      ;;

      (if (null (string-match lyskom-format-format
                              (format-state->format-string format-state)
                              (format-state->start format-state)))
          (progn
            (set-format-state->result 
             format-state
             (concat (format-state->result format-state)
                     (substring (format-state->format-string format-state)
                                (format-state->start format-state))))
            (set-format-state->start format-state
                                     (length (format-state->format-string
                                              format-state))))

        ;;
        ;; A format letter has been found
        ;;

        (set-format-state->result 
         format-state
         (concat (format-state->result format-state)
                 (substring (format-state->format-string format-state)
                            (format-state->start format-state)
                            (match-beginning 0))))

        (set-format-state->start format-state
                                 (match-end 0))

	(setq equals-flag (match-beginning 1)
1040
1041
1042
1043
1044
1045
1046
	      pad-length (if (match-beginning 2)
			     (string-to-int (substring 
					     (format-state->format-string
					      format-state)
					     (match-beginning 2)
					     (match-end 2)))
			   nil)
1047
	      arg-no (if (match-beginning 4)
1048
1049
1050
1051
1052
			 (string-to-int (substring (format-state->format-string
						    format-state)
						   (match-beginning 4)
						   (match-end 4)))
		       nil)
1053
	      colon-flag (match-beginning 5)
1054
1055
              face-flag (match-beginning 6)
	      format-letter (if (match-beginning 7)
1056
1057
				(aref (format-state->format-string 
				       format-state)
1058
				      (match-beginning 7))
1059
1060
1061
1062
			      (signal 'lyskom-internal-error
				      (list 'lyskom-format-aux 
					    (format-state->format-string
					     format-state)))))
1063

David Byers's avatar
David Byers committed
1064
1065
1066
1067
1068

        ;;
        ;;  If the format letter is an end-of-group letter, abort
        ;;  formatting and return to the caller.
        ;;
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082

	(if (= ?\] format-letter)
	    (progn 
	      (setq abort-format t)
	      (set-format-state->start format-state (match-end 0)))

	  (setq format-state 
            (lyskom-format-aux-help 
             format-state
             pad-length
             arg-no
             format-letter
             equals-flag
             colon-flag
1083
             face-flag
1084
1085
1086
1087
1088
             (if (and (match-beginning 2)
                      (eq (aref (format-state->format-string format-state)
                                (match-beginning 2))
                          ?0))
                 ?0
1089
               ? )
David Kågedal's avatar
David Kågedal committed
1090
	     allow-defer))))))
1091
1092
1093
1094
1095
1096
1097
1098
1099
  (lyskom-tweak-format-state format-state))


(defun lyskom-format-aux-help (format-state
                               pad-length
                               arg-no
                               format-letter
                               equals-flag
                               colon-flag
1100
                               face-flag
1101
                               pad-letter
David Kågedal's avatar
David Kågedal committed
1102
			       allow-defer)
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
  (let ((arg nil)
        (result nil)
        (propl nil)
        (prop-adjust-start 0)
        (prop-adjust-end 0)
        (oldpos (length (format-state->result format-state)))
        (abs-length (cond ((null pad-length) nil)
                          ((< pad-length 0) (- 0 pad-length))
                          (t pad-length))))
    (if (and arg-no 
             (< (format-state->args-length format-state) arg-no))
David Kågedal's avatar
David Kågedal committed
1114
        (signal 'lyskom-format-error (list 'lyskom-format
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
                                             ": too few arguments")))
    (if arg-no
        (setq arg (nth (1- arg-no) (format-state->args format-state))))
    
    (if (format-props-p arg)        
        (setq propl (format-props->propl arg)
              arg (format-props->arg arg)))
    
    
    (cond
     ;;
     ;;  Format a string or symbol by simply inserting it into the
     ;;  result list
     ;;
     ((= format-letter ?s)
      (setq result (cond ((stringp arg) arg)
                         ((symbolp arg) (symbol-name arg))
David Kågedal's avatar
David Kågedal committed
1132
                         (t (signal 'lyskom-format-error
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
                                    (list 'lyskom-format
                                          ": argument error"))))))
     ;;
     ;;  Format a number by conferting it to a string and inserting
     ;;  it into the result list
     ;;
     ((or (= format-letter ?d)
          (= format-letter ?o)
          (= format-letter ?x))
      (setq result (if (integerp arg)
                       (format (format "%%%c" format-letter)
                               arg)
                     (signal 'lyskom-internal-error
                             (list 'lyskom-format
                                   ": argument error")))))
     ;;
     ;;  Format a character by converting it to a string and inserting
     ;;  it into the result list
     ;;
     ((= format-letter ?c)
David Byers's avatar
David Byers committed
1153
1154
1155
1156
1157
      (setq result (cond ((integerp arg) (char-to-string (int-to-char arg)))
                         ((characterp arg) (char-to-string arg))
                         (t (signal 'lyskom-internal-error
                                    (list 'lyskom-format
                                          ": argument error"))))))
1158
1159
1160
1161
1162
1163
1164
     ;;
     ;;  Format a literal percent character by inserting a string
     ;;  containing it into the result list
     ;;
     ((= format-letter ?%)
      (setq result "%")) 
     
David Byers's avatar
David Byers committed
1165
1166
1167
1168
1169
1170
1171
1172
     ;;
     ;;  Format a command name somewhat specially
     ;;
     ((= format-letter ?C)
      (setq result (cond ((stringp arg) arg)
                         ((vectorp arg) 
                          (mapconcat 'single-key-description
                                     (append arg nil) " "))
David Byers's avatar
David Byers committed
1173
                         ((and arg (symbolp arg))
1174
                          (if (memq arg lyskom-commands)
David Byers's avatar
David Byers committed
1175
1176
			      (lyskom-command-name arg)
			    (prin1-to-string arg t)))
David Byers's avatar
David Byers committed
1177
                         (t (format "(%S)" arg)))))
David Byers's avatar
David Byers committed
1178
1179
1180
1181
1182
1183
1184

     ;;
     ;;  Format a sexp by princing it. Sort of.
     ;;
     ((= format-letter ?S)
      (setq result (format "%S" arg)))

1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
     ;;
     ;;  Format a text property array indicator by retreiving the
     ;;  properties from the argument list and adding a start of 
     ;;  new properties to the format state
     ;;
     ((= format-letter ?@)
      (set-format-state->delayed-propl
       format-state
       (cons (cons (length (format-state->result format-state))
                   arg)
             (format-state->delayed-propl format-state))))
     ;;
     ;;  Format a subformat list by recursively formatting the contents
     ;;  of the list, augmenting the result and format state
     ;;
David Kågedal's avatar
David Kågedal committed
1200
1201
1202
1203
1204
1205
1206
1207
     ;;  Idea: If this code used lyskom-do-format instead, we could
     ;;  use it to truncate a complex format by using a format string
     ;;  such as:  "%17[ %#1s will be truncated %]"
     ;;
     ;;  This could be useful for faster response when deferring
     ;;  printing. But this function would become more complex and
     ;;  slower.
     ;;
1208
     ((= format-letter ?\[)
David Kågedal's avatar
David Kågedal committed
1209
      (setq format-state (lyskom-format-aux format-state allow-defer)
1210
            result nil))
1211

David Byers's avatar
David Byers committed
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
     ;; A predicate
     ;; Get the predicate type and then parse the format string
     ;; accordingly

     ((= format-letter ?\?)
      (unless (string-match "[db]" 
                            (format-state->format-string format-state)
                            (format-state->start format-state))
        (lyskom-error "Unknown predicate in format string %s (%d)"
                      (format-state->format-string format-state)
                      (format-state->start format-state)))
      (set-format-state->start format-state (match-end 0))
      (let ((predicate-type (elt (match-string 0
                                 (format-state->format-string format-state))
                                 0)))
        (cond 

         ;; Plural/singular predicate
         ;; arg is an integer. Use the first subformat if it is one
         ;; and the second if it is other than one.
         ((= predicate-type ?d)
          (setq format-state
                (lyskom-format-do-binary-predicate (= arg 1)
                                                   format-state 
                                                   allow-defer)
                result nil))

         ;; True/false predicate
         ((= predicate-type ?b)
          (setq format-state
                (lyskom-format-do-binary-predicate arg
                                                   format-state
                                                   allow-defer)
                result nil))
         )))

1248
1249
1250
1251
1252
1253
1254
1255
     ((= format-letter ?F)
      (setq result 
            (if (lyskom-conf-stat-p arg)
                (let ((face (conf-stat-find-aux arg 9))
                      (string (copy-sequence "X")))
                  (lyskom-maybe-add-face-to-string face string))
              "!!!")))

1256
1257
1258
1259
1260
1261
1262
1263
     ;;
     ;;  Format a conference or person name by retreiving information
     ;;  about the conference or person and inserting it as a button
     ;;  (unless the colon flag is set)
     ;;
     ((or (= format-letter ?M)
          (= format-letter ?P))
      (setq result
David Kågedal's avatar
David Kågedal committed
1264
            (cond
1265
1266
1267
1268
1269
1270
             ;; The string is already supplied
             ((stringp arg) arg)

             ;; Conference 0 does not exist, and person 0 means anonymous
             ((and (integerp arg)
                   (zerop arg))
1271
	      (setq colon-flag t)
David Byers's avatar
X    
David Byers committed
1272
1273
1274
1275
1276
1277
1278
              (lyskom-format (cond ((= format-letter ?P)
                                    (or lyskom-default-pers-string
                                        'person-is-anonymous))
                                   ((= format-letter ?M)
                                    (or lyskom-default-conf-string
                                        'conference-does-not-exist)))
                             arg)
1279
	      )
1280
1281

             ;; Delay the printing
David Kågedal's avatar
David Kågedal committed
1282
             ((and allow-defer
1283
                   kom-deferred-printing
1284
                   (integerp arg))
1285
              (let ((tmp (cache-get-uconf-stat arg)))
1286
                (if (null tmp)
1287
                    (let* ((format-element
1288
			    (concat "%#2@%"
1289
1290
1291
1292
1293
1294
				    (if equals-flag "=" "")
				    (if pad-length (int-to-string pad-length))
				    "#1"
				    (if colon-flag ":" "")
				    (char-to-string format-letter)))
			   (defer-info (lyskom-create-defer-info
1295
					'get-uconf-stat
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
					arg
					'lyskom-deferred-insert-conf
					oldpos
					(if pad-length
					    (if equals-flag
						(abs pad-length)
					      (max (length
						    lyskom-defer-indicator)
						   (abs pad-length)))
					  (length lyskom-defer-indicator))
					format-element
					lyskom-default-conf-string)))
		      (set-format-state->delayed-content
1309
                       format-state
1310
                       (cons defer-info
1311
1312
                             (format-state->delayed-content
                              format-state)))
1313
                      lyskom-defer-indicator)
1314
1315
1316

                  ;; The conf-stat was in the cache

1317
                  (setq arg tmp)
1318
                  (uconf-stat->name arg)
1319
                  )))
David Kågedal's avatar
David Kågedal committed
1320
	     
1321
1322
             ;; The argument is an integer and we do not permit 
             ;; deferred printing
1323
             ((integerp arg)
1324
              (let ((conf-stat (blocking-do 'get-uconf-stat arg)))
1325
1326
1327
1328
1329
                (if (null conf-stat)
                    (lyskom-format (if (= format-letter ?P)
                                       'person-does-not-exist
                                     'conference-does-not-exist)
                                   arg)
1330
                  (uconf-stat->name conf-stat))))
David Kågedal's avatar
David Kågedal committed
1331
	     
1332
             ;; We got a conf-stat, and can use it directly
1333
             ((lyskom-conf-stat-p arg)
1334
1335
1336
1337
1338
              (if face-flag
                  (let ((face (conf-stat-find-aux arg 9)))
                    (lyskom-maybe-add-face-to-string face
                                                     (conf-stat->name arg)))
                (conf-stat->name arg)))
1339

1340
             ;; We have an uconf-stat
1341
1342
             ((lyskom-uconf-stat-p arg)
              (uconf-stat->name arg))
David Kågedal's avatar
David Kågedal committed
1343

1344
1345
1346
1347
             ;; Something went wrong
             (t (signal 'lyskom-internal-error
                        (list 'lyskom-format
                              ": argument error")))))
1348
      (if (and (not colon-flag)
1349
               (or (lyskom-conf-stat-p arg)
1350
                   (lyskom-uconf-stat-p arg)
1351
                   (numberp arg)))
1352
1353
1354
1355
1356
          (setq propl 
                (append
                 (lyskom-default-button (if (= format-letter ?P) 'pers 'conf)
                                        arg)
                 propl))))
1357

1358
1359
1360
1361
1362
1363
1364
1365
     ;;
     ;;  Format a conference or person number the same way as names,
     ;;  but insert the number rather than the name
     ;;
     ((or (= format-letter ?m)
          (= format-letter ?p))
      (setq result
            (cond ((integerp arg) 
1366
		   (int-to-string arg))
1367
1368
                  ((lyskom-conf-stat-p arg) 
                   (int-to-string (conf-stat->conf-no arg)))
1369
1370
                  ((lyskom-uconf-stat-p arg)
                   (int-to-string (uconf-stat->conf-no arg)))
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
                  (t (signal 'lyskom-internal-error
                             (list 'lyskom-format
                                   ": argument error")))))
      (if (not colon-flag)
          (setq propl 
                (append 
                 (lyskom-default-button (if (= format-letter ?p) 'pers 'conf)
                                        arg)
                 propl))))
     ;;
     ;;  Format an integer or text-stat as a text number by adding the
     ;;  by inserting a button (unless the colon flag is set)
     ;;
     ((= format-letter ?n)
      (setq result
            (cond ((integerp arg) (int-to-string arg))
                  ((lyskom-text-stat-p