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|
;;;;; -*-coding: raw-text;-*-
;;;;;
;;;;; 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: view-text.el
;;;
;;; This file contains functions that have to do with putting
;;; a text into the lyskom buffer.
;;;
(defvar lyskom-view-text-text)
(defvar lyskom-view-text-text-stat)
(defun lyskom-view-text (text-no &optional mark-as-read
follow-comments conf-stat priority
build-review-tree filter-active
flat-review)
"Display text number TEXT-NO.
Args: TEXT-NO &optional MARK-AS-READ FOLLOW-COMMENTS CONF-STAT
PRIORITY BUILD-REVIEW-TREE FLAT-REVIEW.
If MARK-AS-READ (or `kom-review-marks-texts-as-read') is non-nil the text will
be marked as read.
If FOLLOW-COMMENTS is non-nil all comments and footnotes to this text will be
read before the next text. CONF-STAT must be the conference status of the
current conference, and PRIORITY the priority, if FOLLOW-COMMENTS is non-nil.
If BUILD-REVIEW-TREE is non-nil then it fixes a new entry in the
lyskom-reading-list to read the comments to this.
If FLAT-REVIEW is non-nil this is a review caused by lyskom-view-commented or
kom-view-text viewing REVIEW or REVIEW-MARK text.
Note that this function must not be called asynchronously."
(let ((inhibit-read-only t)
(filter (and filter-active
(lyskom-filter-text-p text-no)))
(start nil)
(todo nil)
(lyskom-last-text-format-flags nil))
(cond ((eq filter 'obliterate)
(setq todo 'next-text)
(lyskom-mark-as-read (blocking-do 'get-text-stat text-no))
'next-text)
((eq filter 'skip-text) (lyskom-filter-prompt text-no 'filter-text)
(setq todo 'next-text)
(lyskom-mark-as-read (blocking-do 'get-text-stat text-no))
'next-text)
((eq filter 'skip-tree)
(lyskom-filter-prompt text-no 'filter-tree)
;;(initiate-get-text-stat 'main 'lyskom-jump text-no t)
;; Let's try something else:
(lyskom-jump (blocking-do 'get-text-stat text-no) t)
(lyskom-wait-queue 'main)
(setq todo 'next-text)
'next-text)
(t
(if (not (or (null filter)
(eq filter 'read)
(eq filter 'dontshow)))
(lyskom-message "%s" (lyskom-get-string 'invalid-filter-list)))
(if (eq filter 'dontshow)
(setq todo 'next-text))
(blocking-do-multiple ((text-stat (get-text-stat text-no))
(text (get-text text-no)))
(setq lyskom-view-text-text text
lyskom-view-text-text-stat text-stat)
(if (and text-stat text)
(progn
(run-hooks 'kom-view-text-hook)
;; Use a marker, because the buffer may lose data
;; at the top if kom-max-buffer-size is set.
(setq start (point-max-marker))
(let ((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)))
(mx-to (lyskom-get-aux-item (text-stat->aux-items text-stat) 19))
(mx-cc (lyskom-get-aux-item (text-stat->aux-items text-stat) 20))
(mx-message-id (lyskom-get-aux-item (text-stat->aux-items text-stat) 22))
(mx-filename (lyskom-get-aux-item (text-stat->aux-items text-stat) 10104))
(mx-sender (lyskom-get-aux-item (text-stat->aux-items text-stat) 10103))
(mx-headers (lyskom-get-aux-item (text-stat->aux-items text-stat) 24))
(mx-reply-to (lyskom-get-aux-item (text-stat->aux-items text-stat) 18)))
(lyskom-format-insert
'view-text-first-line
text-stat
(list 'lyskom-text-start (text-stat->text-no text-stat))
(if mx-date
(lyskom-format-mx-date mx-date)
(lyskom-format-time 'date-and-time
(text-stat->creation-time text-stat)))
(text-stat->no-of-lines text-stat)
(or (lyskom-format-mx-author mx-from mx-author)
(lyskom-format "%#1P"
(text-stat->author text-stat)))
(when (eq filter 'dontshow)
(lyskom-get-string 'filtered))
(when kom-highlight-first-line
`(face ,kom-first-line-face)))
(set-marker start nil)
;; Insert sender
(when (and mx-sender kom-show-imported-envelope-sender)
(lyskom-format-insert 'envelope-sender
(aux-item->data (car mx-sender))))
(when mx-filename
(lyskom-format-insert 'attachment-filename
(aux-item->data (car mx-filename))))
(when (and mx-message-id kom-show-imported-message-id)
(lyskom-format-insert 'message-id
(aux-item->data (car mx-message-id))))
;; Insert imported at
(cond ((and (or mx-from mx-author mx-sender mx-headers)
(text-stat->author text-stat)
kom-show-imported-importer)
(lyskom-format-insert 'text-imported-at-by
(lyskom-format-time
'date-and-time
(text-stat->creation-time text-stat))
(text-stat->author text-stat)))
(mx-from
(lyskom-format-insert 'text-imported-at
(lyskom-format-time
'date-and-time
(text-stat->creation-time text-stat))))
(mx-date (lyskom-format-insert 'text-created-at
(lyskom-format-time
'date-and-time
(text-stat->creation-time text-stat)))))
(when kom-show-imported-external-recipients
(mapc (lambda (el)
(lyskom-format-insert "%#1s: %#2s\n"
(lyskom-get-string 'mx-Recipient)
(aux-item->data el)))
mx-to)
(mapc (lambda (el)
(lyskom-format-insert "%#1s: %#2s\n"
(lyskom-get-string 'mx-Extra-recipient)
(aux-item->data el)))
mx-cc)
(mapc (lambda (el)
(lyskom-format-insert "%#1s: %#2s\n"
(lyskom-get-string 'mx-Extern-reply-to)
(aux-item->data el)))
mx-reply-to)
)
;; Insert all recipients and other header lines.
(if (eq filter 'dontshow)
(lyskom-mark-as-read
(blocking-do 'get-text-stat text-no))
(lyskom-traverse misc
(text-stat->misc-info-list text-stat)
(let ((type (misc-info->type misc)))
(cond
((memq type '(RECPT BCC-RECPT CC-RECPT))
(lyskom-print-header-recpt
(misc-info->recipient-no misc)
misc))
((eq type 'COMM-IN)
(if kom-reading-puts-comments-in-pointers-last
nil
(lyskom-print-header-comm
(misc-info->comm-in misc)
misc
text-stat)))
((eq type 'FOOTN-IN)
(if kom-reading-puts-comments-in-pointers-last
nil
(lyskom-print-header-comm
(misc-info->footn-in misc)
misc
text-stat)))
((eq type 'COMM-TO)
(lyskom-print-header-comm (misc-info->comm-to misc)
misc
text-stat))
((eq type 'FOOTN-TO)
(lyskom-print-header-comm (misc-info->footn-to misc)
misc
text-stat))
)))
;; Insert aux-items that go in the header.
(lyskom-traverse-aux aux (text-stat->aux-items text-stat)
(let ((tpw (lyskom-aux-item-definition-field aux 'text-print-when)))
(when (or (and (lyskom-viewing-noconversion) (not (eq tpw 'footer)))
(eq tpw 'header)
(and (eq tpw 'comment) (not kom-reading-puts-comments-in-pointers-last)))
(if (lyskom-aux-item-has-call aux 'text-print)
(let ((text (lyskom-aux-item-call aux 'text-print aux text-stat)))
(when text (lyskom-insert text) (lyskom-insert "\n")))
(lyskom-format-insert 'text-header-aux-item
(lyskom-get-string
(or (car (lyskom-aux-item-definition-field aux 'text-name))
'unknown-aux-item))
(aux-item->tag aux)
(aux-item->data aux)
(lyskom-aux-item-terminating-button aux text-stat))
(lyskom-insert "\n")))))
;; If the text is marked, insert line saying so.
(let ((num-marks (text-stat->no-of-marks text-stat))
(is-marked-by-me (cache-text-is-marked
(text-stat->text-no text-stat))))
(when (> num-marks 0)
(if is-marked-by-me
(if (= num-marks 1)
(lyskom-format-insert 'marked-by-you
(mark->symbolic-mark-type
is-marked-by-me))
(lyskom-format-insert 'marked-by-you-and-others
(1- num-marks)
(mark->symbolic-mark-type
is-marked-by-me)))
(lyskom-format-insert 'marked-by-several num-marks))))
;; Insert the text body.
(lyskom-print-text text-stat text
(or mark-as-read kom-review-marks-texts-as-read)
text-no flat-review)
(if kom-review-marks-texts-as-read (lyskom-is-read text-no)))
;; Insert aux-items that go in the footer.
(let ((text nil))
(lyskom-traverse-aux aux
(text-stat->aux-items text-stat)
(when (and
(or (eq (lyskom-aux-item-definition-field aux
'text-print-when)
'footer)
(and (eq (lyskom-aux-item-definition-field aux
'text-print-when)
'comment)
kom-reading-puts-comments-in-pointers-last
))
(setq text
(lyskom-aux-item-call
aux
'text-print
aux
text-stat)))
(lyskom-insert text)
(lyskom-insert "\n"))))
;; Insert fast replies.
(let ((author-fast-replies nil)
(other-fast-replies nil))
(lyskom-traverse-aux aux (text-stat->aux-items text-stat)
(when (eq (aux-item->tag aux) 2)
(if (or (lyskom-viewing-noconversion)
(not (eq (text-stat->author text-stat)
(aux-item->creator aux))))
(setq other-fast-replies
(cons aux other-fast-replies))
(setq author-fast-replies
(cons aux author-fast-replies)))))
(when author-fast-replies
(lyskom-insert
(concat
(lyskom-format 'author-fast-replies)
"\n"
(mapconcat (lambda (item)
(concat
(lyskom-format 'author-fast-reply-aux
(aux-item->data item)
(aux-item->creator item))
(lyskom-aux-item-terminating-button
item
text-stat)
"\n"))
(nreverse author-fast-replies)
""))))
(when other-fast-replies
(lyskom-insert
(concat
(lyskom-format 'other-fast-replies)
"\n"
(mapconcat (lambda (item)
(concat
(lyskom-format 'other-fast-reply-aux
(aux-item->data item)
(aux-item->creator item))
(lyskom-aux-item-terminating-button
item
text-stat)
"\n"))
(nreverse other-fast-replies)
"")))))
;; Insert footnote/comment references.
(if kom-reading-puts-comments-in-pointers-last
(lyskom-view-text-handle-saved-comments text-stat))
; Show footnotes if we should do that directly
(if kom-show-footnotes-immediately
(lyskom-traverse misc
(text-stat->misc-info-list text-stat)
(if (eq (misc-info->type misc) 'FOOTN-IN)
;; Show the footnote
(progn
(lyskom-view-text (misc-info->footn-in misc)
mark-as-read t conf-stat priority)
; Mark as read (internally) so follow-comments won't add
; it to the read list.
(lyskom-is-read (misc-info->footn-in misc))))))
;; Prefetch commented texts.
(if (or follow-comments
;; Checking build-review-tree should not be
;; necessary, really /davidk
build-review-tree)
;; This shows footnotes also.
(progn
;; this is a bit silly, as it prefetches all
;; the texts many times.
(unless (and build-review-tree
kom-review-uses-cache)
(lyskom-prefetch-texttree text-no))
(lyskom-follow-comments text-stat
conf-stat
(or mark-as-read kom-review-marks-texts-as-read)
priority build-review-tree)))
(if (lyskom-text-p (cache-get-text text-no))
(cache-del-text text-no))
))
(lyskom-format-insert 'no-such-text-no text-no))
(let ((aux-items (text-stat->aux-items text-stat)))
(while aux-items
(lyskom-aux-item-call (car aux-items)
'read-action
text-stat)
(setq aux-items (cdr aux-items))))
)))
todo))
(defun lyskom-text-is-mail-p (text-stat)
"Ad-hoc test to determine whether a text is a mail by peeking at aux-items."
(lyskom-match-aux-items
(text-stat->aux-items text-stat)
(lambda (aux-item)
(let ((tag (aux-item->tag aux-item)))
(or (and (> tag 15) ; 16:mx-author, 17:mx-from, 18:mx-reply-to,
(< tag 22)) ; 19:mx-to, 20:mx-cc, 21:mx-date,
(= 24 tag)))))) ; 24:mx-headers
(defun lyskom-filter-signature-hook ()
"Filter out the signature of imported mail messages. Most useful
when put in your `kom-view-text-hook'."
(unless (lyskom-viewing-noconversion)
(when (lyskom-text-is-mail-p lyskom-view-text-text-stat)
(let* ((body (text->text-mass lyskom-view-text-text))
(sign (string-match "^-- $" body)))
(when sign
(set-text->text-mass lyskom-view-text-text (substring body 0 sign))
(lyskom-signal-reformatted-text 'reformat-signature))))))
;(add-hook 'kom-view-text-hook 'lyskom-filter-signature-hook)
; review-rot13
(defun lyskom-rot13-string (s)
(mapconcat
(lambda (c)
(cond
((and (>= c ?a) (<= c ?z)) (string (+ ?a (% (+ 13 (- c ?a)) 26))))
((and (>= c ?A) (<= c ?Z)) (string (+ ?A (% (+ 13 (- c ?A)) 26))))
(t (string c))))
s ""))
(defun lyskom-filter-rot13 ()
"Encrypts everything with rot-13. Least useless when put in your `kom-view-text-hook'."
(set-text->text-mass lyskom-view-text-text
(lyskom-rot13-string
(text->text-mass lyskom-view-text-text)))
(lyskom-signal-reformatted-text 'reformat-rot13))
(defun lyskom-view-text-convert-UTF-8-to-ISO-8859-1 ()
"Display räksmörgås as rksmrgs if the text has charset=utf-8,
unless we are reviewing without conversion. More precisely, the latin
1 characters are converted from their utf-8 normal form. Yet another
useful function to put in your `kom-view-text-hook'."
(let* ((cti (lyskom-get-aux-item
(text-stat->aux-items lyskom-view-text-text-stat) 1))
(content-type (if cti (aux-item->data (car cti)) "")))
(when (and (string-match "charset\\s-*=\\s-*utf-?8" content-type)
(not (lyskom-viewing-noconversion)))
(let* ((was (aref (cdr lyskom-view-text-text) 1)) ; original text version
(txt nil) ; converted-text-to-be
(get ".") ; "[][\200-\277]", if emacsen would grok 8-bit ranges
(old 0)
(got (string-match get was))
; (set nil)
(chr nil))
(when got
(lyskom-signal-reformatted-text 'reformat-utf-8)
(while got
(setq ; set (aref was got)
chr (aref was (1+ got))
txt (nconc txt (list (substring was old got)
(char-to-string ;(if (eq set ?) chr
(+ chr 64))))
old (+ 2 got)
got (string-match get was old)))
(setq txt (apply 'concat (nconc txt (list (substring was old)))))
(setq txt (replace-in-string txt "" "")) ; sigh
(aset (cdr lyskom-view-text-text) 1 txt))))))
;(add-hook 'kom-view-text-hook 'lyskom-view-text-convert-UTF-8-to-ISO-8859-1)
(defun lyskom-view-text-convert-ISO-646-SE-to-ISO-8859-1 ()
"Display r{ksm|rg}s as rksmrgs unless the text is an imported mail
or we are reviewing without conversion. In other words, the characters
][\\}{| are converted, however ^~@` are not. Yet another useful function
to put in your `kom-view-text-hook'."
;; First the hard part - should we patch the text
;; in the text object?
(unless (or (lyskom-viewing-noconversion)
(lyskom-text-is-mail-p lyskom-view-text-text-stat))
;; Yes, modify the text from the text-object (stored in mod)
(let* ((mod (aref (cdr lyskom-view-text-text) 1))
(brk (string-match "\n" mod))
(sbj (if brk (substring mod 0 brk) mod))
(txt (if brk (substring mod (1+ brk)) ""))
(tbl '((?\] . ?\305) ;
(?\[ . ?\304) ;
(?\\ . ?\326) ;
(?\} . ?\345) ;
(?\{ . ?\344) ;
(?\| . ?\366)))) ;
(when (and (not (string-match "[\200-\377]" txt))
(or (string-match "[A-Za-z][][\\}{|]" txt)
(string-match "[][\\}{|][A-Za-z]" txt)
(string-match "[A-Za-z] +[][\\}{|]" txt)))
(lyskom-signal-reformatted-text 'reformat-deswascii)
(while (string-match "\\([][\\}{|]\\)" txt)
(let ((old-char (aref (match-string 1 txt) 0)))
(aset txt (match-beginning 1) (cdr (assoc old-char tbl)))))
(aset (cdr lyskom-view-text-text) 1
(if brk (concat sbj "\n" txt) sbj))))))
;(add-hook 'kom-view-text-hook 'lyskom-view-text-convert-ISO-646-SE-to-ISO-8859-1)
(defun lyskom-follow-comments (text-stat conf-stat
mark-as-read priority review-tree)
"Arrange so that all comments and footnotes to this text will be read.
This will essentially fix the reading list and issue calls for the cache to be
filled.
Arguments are: TEXT-STAT CONF-STAT MARK-AS-READ PRIORITY REVIEW-TREE
TEXT-STAT is the current text.
CONF-STAT the current conference
If MARK-AS-READ is non-nil the texts will be marked as read.
PRIORITY the priority of the reading.
If REVIEW-TREE is non-nil then build an entry of type 'REVIEW-TREE in the
lyskom-reading-list."
;; . Fix the reading-list
;; . Issue cache-filling initiate-calls for everything left comments.
(let ((flist nil)
(clist nil)
(mx-attachments-in (lyskom-get-text-attachments text-stat)))
(lyskom-traverse misc (text-stat->misc-info-list text-stat)
(cond
((eq (misc-info->type misc) 'FOOTN-IN)
(setq flist (cons (misc-info->footn-in misc) flist)))
((eq (misc-info->type misc) 'COMM-IN)
(setq clist (cons (misc-info->comm-in misc) clist)))))
(let (comments footnotes)
;; Find the comments that we should read and enter them into the
;; read-list.
(lyskom-traverse no clist
(cond ((or review-tree
kom-follow-attachments
(not (memq no mx-attachments-in)))
(let ((text-stat (blocking-do 'get-text-stat no)))
(if (and text-stat
(or review-tree
(and (or kom-follow-comments-outside-membership
(lyskom-member-of-at-least-one-p (lyskom-text-recipients text-stat)))
(not (lyskom-text-read-p text-stat t)))))
(setq comments (cons no comments)))))
((memq no mx-attachments-in)
(lyskom-skip-attachments no mark-as-read))))
(if comments
(if review-tree
(lyskom-review-enter-read-info
(lyskom-create-read-info 'REVIEW-TREE
conf-stat priority
(lyskom-create-text-list comments)
(text-stat->text-no text-stat)) t)
(read-list-enter-read-info
(lyskom-create-read-info 'COMM-IN
conf-stat priority
(lyskom-create-text-list comments)
(text-stat->text-no text-stat))
lyskom-reading-list t)))
;; Find the footnotes that we should read and enter them into
;; the read-list. A slight trick is to increase the priority so
;; that they will be read first.
(lyskom-traverse no flist
(let ((text-stat (blocking-do 'get-text-stat no)))
(if (or review-tree
(and text-stat
(or kom-follow-comments-outside-membership
(lyskom-member-of-at-least-one-p (lyskom-text-recipients text-stat)))
(not (lyskom-text-read-p text-stat t))))
(setq footnotes (cons no footnotes)))))
(if footnotes
(read-list-enter-read-info
(lyskom-create-read-info (if review-tree 'REVIEW-TREE 'FOOTN-IN)
conf-stat (1+ priority)
(lyskom-create-text-list footnotes)
(text-stat->text-no text-stat))
lyskom-reading-list t)))))
(defun lyskom-get-text-attachments (text-stat)
"Return a list of all attachments to TEXT-STAT."
(mapcar
(lambda (el)
(string-to-number (aux-item->data el)))
(lyskom-get-aux-item (text-stat->aux-items text-stat) 10101)))
(defun lyskom-get-text-belongs-to (text-stat &optional footnotes)
"Return a list of all texts TEXT-STAT is an attachment to.
If optional FOOTNOTES is non-nil, include text TEXT-STAT is a footnote to."
(append
(mapcar
(lambda (el) (string-to-number (aux-item->data el)))
(lyskom-get-aux-item (text-stat->aux-items text-stat) 10100))
(when footnotes
(delq nil
(mapcar (lambda (misc)
(when (eq (misc-info->type misc) 'FOOTN-TO)
(misc-info->footn-to misc)))
(text-stat->misc-info-list text-stat))))))
(defun lyskom-get-root-text-belongs-to (text-stat &optional footnotes)
"Return the top-level parent of TEXT-STAT, following attachment
and footnote (if optional FOOTNOTES is non-nil"
(lyskom-find-dag-roots 'lyskom-get-text-belongs-to
(lambda (x)
(or (cache-get-text-stat x)
(blocking-do 'get-text-stat x)))
(text-stat->text-no text-stat)
nil
footnotes))
(defun lyskom-skip-attachments (text-no mark-as-read)
"Skip the hierarchy of attachments starting at text-no"
(let ((queue (list text-no))
(done nil)
(tmp (make-collector))
(result nil))
;; Note: this does block the client, but explicitly checks that
;; it is not being called from under the parser (where it
;; really doesn't make a whole lot of sense anyway), so
;; we ought to be OK anyway.
(unless lyskom-is-parsing
(while queue
(while queue
(when (not (memq (car queue) done))
(initiate-get-text-stat 'background
'collector-push
(car queue)
tmp)
(setq queue (cdr queue))
(setq done (cons (car queue) done))))
(lyskom-wait-queue 'background)
(setq result (nconc result (collector->value tmp)))
(lyskom-traverse text-stat (collector->value tmp)
(setq queue (nconc queue (lyskom-get-text-attachments text-stat)))))
(lyskom-traverse text-stat result
(read-list-delete-text (text-stat->text-no text-stat) lyskom-reading-list)
(read-list-delete-text (text-stat->text-no text-stat) lyskom-to-do-list)
(when mark-as-read
(lyskom-mark-as-read text-stat)
(lyskom-is-read-handler text-stat))))))
(defun lyskom-text-read-p (text-stat &optional want-passive)
"Return t if TEXT-STAT has been marked as read in all
recipients to it that the user is a member in."
(let* ((misc-info-list (text-stat->misc-info-list text-stat))
(i (length misc-info-list))
(res 'not-member))
(while (and res (not (zerop i)))
(setq i (1- i))
(let* ((misc-info (elt misc-info-list i))
(type (misc-info->type misc-info)))
(cond
((memq type '(RECPT BCC-RECPT CC-RECPT))
;; Is this function ever called asynchronously? If not, we
;; can use lyskom-get-membership istead.
(let ((membership (lyskom-try-get-membership
(misc-info->recipient-no misc-info) want-passive))
(loc-no (misc-info->local-no misc-info)))
;; Make a note that this text really is in a group we are
;; a member of.
(if (and res membership) (setq res t))
(if (and membership
(> loc-no (membership->last-text-read membership))
(not (lyskom-vmemq loc-no
(membership->read-texts membership))))
(setq res nil)))))))
(if (eq res 'not-member)
nil
res)))
(defun lyskom-text-read-at-least-once-p (text-stat &optional bg)
"Return t if TEXT-STAT has been marked as read in any of the recipients
the user is a member of. Uses blocking-do. Returns t if TEXT-STAT is nil.
If BG is non-nil, this function is run in the background and must not use
blocking-do."
(if text-stat
(let* ((misc-info-list (text-stat->misc-info-list text-stat))
(misc-item nil)
(type nil)
(membership nil)
(is-member nil)
(result nil))
(while misc-info-list
(setq misc-item (car misc-info-list))
(setq type (misc-info->type misc-item))
(setq misc-info-list (cdr misc-info-list))
(cond ((memq type lyskom-recpt-types-list)
(setq membership (if bg
(lyskom-try-get-membership
(misc-info->recipient-no misc-item) t)
(lyskom-get-membership
(misc-info->recipient-no misc-item) nil)))
(when membership
(setq is-member t)
(when (or (<= (misc-info->local-no misc-item)
(membership->last-text-read membership))
(lyskom-vmemq (misc-info->local-no misc-item)
(membership->read-texts
membership)))
(setq result t)
(setq misc-info-list nil))))))
(cond (result result)
((not is-member) (not kom-follow-comments-outside-membership))
(t nil)))
t))
(defun lyskom-subtract-one-day (x)
(let ((high-x (1- (car x)))
(low-x (car (cdr x))))
(if (> 20864 low-x)
(setq high-x (1- high-x)
low-x (+ low-x 65536)))
(setq low-x (- low-x 20864))
(list high-x low-x nil)))
(defun lyskom-calculate-day-diff (time)
(let* ((now (current-time))
(yesterday (lyskom-subtract-one-day now))
(decnow (decode-time now))
(decthen (decode-time yesterday)))
(cond ((and (= (time->mday time) (elt decnow 3))
(= (time->mon time) (elt decnow 4))
(= (time->year time) (elt decnow 5)))
'today)
((and (= (time->mday time) (elt decthen 3))
(= (time->mon time) (elt decthen 4))
(= (time->year time) (elt decthen 5)))
'yesterday)
(t nil))))
(defun lyskom-format-text-footer (text author author-name format format-flags)
"Format the footer of a text."
(let* ((result "")
(start 0)
(format-letter nil)
(field-width nil)
(kom-deferred-printing nil)
(author-name-len nil)
(have-author (and format (string-match "%=?[0-9]*P" format))))
(setq author-name-len (lyskom-string-width (or author-name (conf-stat->name author))))
;; No user-specified format, so output dashes and stuff
(if (null format)
(let* ((format-flag-string
(if (and format-flags (listp format-flags))
(let ((first-flag t))
(concat
"("
(mapconcat
(lambda (str)
(let ((face nil))
;; If it's a cons, the cdr is property list
(when (consp str) (setq face (cdr str) str (car str)))
(if (stringp str)
str
(setq str (lyskom-get-string str))
(when first-flag
(setq str (capitalize str))))
(setq first-flag nil)
(when face (add-text-properties 0 (length str) face str))
str))
format-flags ", ")
")"))
""))
(end-dash-chars
(- kom-text-footer-dash-length
(lyskom-string-width (int-to-string (text-stat->text-no text)))
3 ; Parens and space
(if kom-show-author-at-end
(+ author-name-len 2)
0)
(lyskom-string-width format-flag-string)))
(end-dash (if (> end-dash-chars 0)
(make-string end-dash-chars ?-)
"")))
(lyskom-format
(cond ((and kom-dashed-lines kom-show-author-at-end)
"(%#1n) /%#2P/%#3s%#4s")
(kom-dashed-lines
"(%#1n) %#3s%#4s")
(kom-show-author-at-end
"(%#1n) /%#2P/")
(t
"(%#1n)"))
text
(or author-name author)
end-dash
format-flag-string))
;; User-specified format. Do all kinds of weird stuff
(while (string-match "%\\(=?-?[0-9]+\\)?\\([-nPpf% ]\\)" format start)
(setq result (concat result (substring format start
(match-beginning 0))))
(setq format-letter (aref format (match-beginning 2)))
(setq field-width (match-string 1 format))
(when (null field-width) (setq field-width ""))
(setq start (match-end 0))
(setq result
(concat
result
(cond
((eq format-letter ?p)
(lyskom-format (format "%%%s#1p" field-width)
(or author (text-stat->author text))))
((eq format-letter ?P)
(lyskom-format (format "%%%s#1P" field-width)
(or author author-name)))
((eq format-letter ?n)
(lyskom-format (format "%%%s#1n" field-width)
(text-stat->text-no text)))
((eq format-letter ?f)
(if format-flags
(lyskom-format (format "%%%s#1s" field-width)
(lyskom-get-string format-flags))
""))
((eq format-letter ?-)
(let ((width
(cond ((null field-width) 42)
((string= "" field-width) 42)
((eq ?= (aref field-width 0))
(lyskom-string-to-number (substring field-width 1)))
(t (lyskom-string-to-number field-width)))))
(lyskom-format
"%#1s"
(if have-author
(if (< author-name-len width)
(make-string (- width author-name-len) ?-)
"")
(make-string width ?-)))))
((eq format-letter ?%)
"%")
(t (concat "%" field-width (make-string 1 format-letter))))))
)
(setq result (concat result (substring format start)))
(if (string-match "[ \t]+\\'" result)
(substring result 0 (match-beginning 0))
result))))
(defun lyskom-deferred-insert-footer (conf-stat defer-info)
"Insert the name of a conference at a previously reserved place."
(let* ((text-stat (elt (defer-info->data defer-info) 0))
(format-flags (elt (defer-info->data defer-info) 1))
(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)))
(name (cond (conf-stat nil)
((= (defer-info->call-par defer-info) 0)
(lyskom-get-string 'person-is-anonymous))
(t (lyskom-format 'person-does-not-exist
(text-stat->author text-stat))))))
(setq name (or (lyskom-format-mx-author mx-from mx-author) name))
(lyskom-replace-deferred defer-info
(lyskom-format-text-footer text-stat
conf-stat
name
kom-text-footer-format
format-flags))))
(defun lyskom-print-text (text-stat text mark-as-read text-no flat-review)
"Print a text. The header must already be printed.
Print an error message if TEXT-STAT or TEXT is nil.
Mark the text as read if (and only if) MARK-AS-READ is non-nil.
Args: TEXT-STAT TEXT MARK-AS-READ TEXT-NO FLAT-REVIEW."
(let* ((lyskom-current-function 'lyskom-print-text)
(cti (lyskom-get-aux-item (text-stat->aux-items text-stat) 1))
(content-type (and cti (aux-item->data (car cti)))))
(cond
((or (null text)
(null text-stat))
(lyskom-format-insert 'no-such-text-no text-no)
(setq lyskom-previous-text lyskom-current-text)
(setq lyskom-current-text text-no))
(t
(when (eq (text-stat->author text-stat) lyskom-pers-no)
(setq lyskom-last-seen-written (text-stat->text-no text-stat)))
(let* ((str (text->decoded-text-mass text text-stat))
(truncated nil)
;; s1 s2 t1 t2
body)
(cond
((and (string-match "\n" str)
(not (equal "x-kom/user-area" content-type)))
(setq lyskom-current-subject (substring str 0 (match-beginning 0)))
(setq body (substring str (match-end 0)))
(lyskom-insert-string 'head-Subject)
(let ((lyskom-current-function-phase 'subject))
(lyskom-format-insert "%#1r\n"
(cons text-stat
(copy-sequence
lyskom-current-subject))))
(lyskom-format-insert
"%#2$%#1s\n"
(if kom-dashed-lines
(make-string kom-text-header-dash-length ?-)
"")
(when kom-highlight-dashed-lines
`(face ,(or kom-dashed-lines-face
lyskom-default-dashed-lines-face))))
;; (setq t1 (point-max))
;; Truncate body if flat-review and long text
(when (and flat-review
(numberp kom-truncate-show-lines)
(numberp kom-truncate-threshold))
(let* ((truncated-body
(lyskom-truncate-to-lines body
kom-truncate-threshold
(min kom-truncate-show-lines
kom-truncate-threshold))))
(unless (eq truncated-body body)
(setq body truncated-body
truncated t))))
(let ((lyskom-current-function-phase 'body))
(lyskom-format-insert "%#2$%#1t\n"
(cons text-stat body)
(and kom-highlight-text-body
`(face ,(or kom-text-body-face
lyskom-default-text-body-face))))
)
;; Indicate that the text was truncated
(if truncated
(lyskom-signal-reformatted-text
`(reformat-truncated . (face ,kom-warning-face))))
;; (setq t2 (point-max))
)
(t ;No \n found. Don't print header.
(lyskom-format-insert
"%#2$%#1s\n"
(if kom-dashed-lines
(make-string kom-text-header-dash-length ?-)
"")
(when kom-highlight-dashed-lines
`(face ,(or kom-dashed-lines-face
lyskom-default-dashed-lines-face))))
(lyskom-format-insert "%#2$%#1t\n"
(cons text-stat str)
(and kom-highlight-text-body
`(face ,(or kom-text-body-face
lyskom-default-text-body-face))))
(setq lyskom-current-subject "")))
(sit-for 0)
(let* ((lyskom-current-function-phase 'footer)
(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)))
(author-name (lyskom-format-mx-author mx-from mx-author)))
(if (and kom-deferred-printing
(or kom-text-footer-format
kom-show-author-at-end))
(progn
(lyskom-format-insert "%#2$%#1s\n"
lyskom-defer-indicator
(when kom-highlight-dashed-lines
`(face ,(or kom-dashed-lines-face
lyskom-default-dashed-lines-face))))
(lyskom-defer-insertion
(lyskom-create-defer-info
'get-conf-stat
(text-stat->author text-stat)
'lyskom-deferred-insert-footer
(set-marker (make-marker)
(- (point-max)
(length lyskom-defer-indicator)
1))
(length lyskom-defer-indicator)
"%#1s"
(list text-stat lyskom-last-text-format-flags))))
(let* ((conf-stat (and (or kom-text-footer-format
kom-show-author-at-end)
(not (eq 0 (text-stat->author text-stat)))
(blocking-do 'get-conf-stat
(text-stat->author text-stat)))))
(lyskom-format-insert
"%#2$%#1s\n"
(lyskom-format-text-footer
text-stat
conf-stat
(cond (author-name author-name)
((eq (text-stat->author text-stat) 0)
(lyskom-get-string 'person-is-anonymous))
(conf-stat (conf-stat->name conf-stat))
(t (lyskom-format 'person-does-not-exist
(text-stat->author text-stat))))
kom-text-footer-format
lyskom-last-text-format-flags)
(when kom-highlight-dashed-lines
`(face ,(or kom-dashed-lines-face
lyskom-default-dashed-lines-face)))))))
(if mark-as-read
(lyskom-mark-as-read text-stat))
(setq lyskom-previous-text lyskom-current-text)
(setq lyskom-current-text (text-stat->text-no text-stat)))))))
(defun lyskom-mark-as-read (text-stat)
"Mark a text as read in all conferences that are recipients.
Tell the server that it is read.
Args: TEXT-STAT
This function does not remove the text from the internal structures of
the client. That is done by lyskom-is-read."
(let ((misc-info-list (text-stat->misc-info-list text-stat)))
(lyskom-traverse
misc-info misc-info-list
(if (and (memq (misc-info->type misc-info) lyskom-recpt-types-list)
;; The whole membership list might not be fetched
;; yet. So we better mark it as read in all conferences.
;; (lyskom-member-p (misc-info->recipient-no misc-info))
)
(initiate-mark-as-read 'background
nil
(misc-info->recipient-no misc-info)
(list (misc-info->local-no misc-info))
text-stat
(misc-info->recipient-no misc-info)
(list (misc-info->local-no misc-info)))))))
(defun lyskom-print-header-recpt (conf-no misc)
"Print a line of info about a recipient (or cc-recipient) of a text."
(lyskom-format-insert "%#1s: %#2M <%#3d>\n"
(cond ((eq (misc-info->type misc) 'RECPT)
(lyskom-get-string 'Recipient))
((eq (misc-info->type misc) 'BCC-RECPT)
(lyskom-get-string 'Hidden-recipient))
((eq (misc-info->type misc) 'CC-RECPT)
(lyskom-get-string 'Extra-recipient))
(t (lyskom-get-string 'Strange-recipient)))
conf-no
(misc-info->local-no misc))
(if (misc-info->sent-at misc)
(lyskom-format-insert 'send-at
(lyskom-format-time
'date-and-time
(misc-info->sent-at misc))))
(if (misc-info->sender misc)
(lyskom-format-insert 'sent-by (misc-info->sender misc)))
(if (misc-info->rec-time misc)
(lyskom-format-insert
'received-at
(lyskom-format-time 'date-and-time (misc-info->rec-time misc)))))
(defun lyskom-view-text-handle-saved-comments (text-stat)
"Ask server for what is needed to print the references to commenting texts
and prints the references. Used at the bottom of the text.
Args: TEXT-STAT of the text being read."
(lyskom-traverse misc
(text-stat->misc-info-list text-stat)
(let ((type (misc-info->type misc)))
(cond
((eq type 'COMM-IN)
(lyskom-print-header-comm (misc-info->comm-in misc) misc text-stat))
((eq type 'FOOTN-IN)
(lyskom-print-header-comm (misc-info->footn-in misc) misc text-stat))))))
(defun lyskom-print-header-comm (text misc read-text-stat)
"Get author of TEXT-NO and print a header line."
(let ((text-stat (if kom-deferred-printing
(cache-get-text-stat text)
(blocking-do 'get-text-stat text))))
;; Print information about the link
(cond (text-stat
(lyskom-insert-header-comm text-stat misc read-text-stat))
((not kom-deferred-printing)
(lyskom-insert-header-comm text-stat misc read-text-stat))
(t
(let ((defer-info (lyskom-create-defer-info
'get-text-stat
text
'lyskom-insert-deferred-header-comm
(point-max-marker)
(length lyskom-defer-indicator)
nil ; Filled in later
(list misc read-text-stat))))
(lyskom-format-insert "%#1s\n" lyskom-defer-indicator)
(lyskom-defer-insertion defer-info))))
;; Print information about who added the link
(if (misc-info->sent-at misc)
(lyskom-format-insert 'send-at (lyskom-format-time
'date-and-time
(misc-info->sent-at misc))))
(if (misc-info->sender misc)
(lyskom-format-insert 'sent-by (misc-info->sender misc)))))
(defun lyskom-insert-deferred-header-comm (text-stat defer-info)
(let* ((author (if text-stat (text-stat->author text-stat) nil))
(misc (elt (defer-info->data defer-info) 0))
(read-text-stat (elt (defer-info->data defer-info) 1))
(type (misc-info->type misc))
(mx-from (car (lyskom-get-aux-item (text-stat->aux-items text-stat)
17)))
(read-mx-from (car (lyskom-get-aux-item (text-stat->aux-items read-text-stat)
17)))
(mx-author (car (lyskom-get-aux-item (text-stat->aux-items text-stat)
16)))
(mx-attachments-in (lyskom-get-text-attachments read-text-stat))
(mx-belongs-to (mapcar
(lambda (el)
(string-to-number (aux-item->data el)))
(lyskom-get-aux-item (text-stat->aux-items
read-text-stat) 10100)))
(content-type "")
(read-content-type "")
fmt data)
(setq author (or (lyskom-format-mx-author mx-from mx-author) author))
;; Extract the content type
(if (and mx-from
(setq content-type
(car (lyskom-get-aux-item (text-stat->aux-items
text-stat) 1))))
(progn (string-match "^\\(\\S-+\\)" (aux-item->data content-type))
(setq content-type (format "(%s) "
(aux-item->data content-type))))
(setq content-type ""))
(if (and read-mx-from
(setq read-content-type
(car (lyskom-get-aux-item (text-stat->aux-items
read-text-stat) 1))))
(progn (string-match "^\\(\\S-+\\)" (aux-item->data read-content-type))
(setq read-content-type (format "(%s) "
(aux-item->data read-content-type))))
(setq read-content-type ""))
(cond
((eq type 'COMM-TO)
(setq fmt (cond ((memq (misc-info->comm-to misc) mx-belongs-to)
'attachment-to-text)
(author 'comment-to-text-by)
(t 'comment-to-text))
content-type read-content-type
data (misc-info->comm-to misc)))
((eq type 'FOOTN-TO)
(setq fmt (cond ((memq (misc-info->footn-to misc) mx-belongs-to)
'attachment-to-text)
(author 'footnote-to-text-by)
(t 'footnote-to-text))
content-type read-content-type
data (misc-info->footn-to misc)))
((eq type 'COMM-IN)
(setq fmt (cond ((memq (misc-info->comm-in misc) mx-attachments-in)
'attachment-in-text)
(author 'comment-in-text-by)
(t 'comment-in-text))
data (misc-info->comm-in misc)))
((eq type 'FOOTN-IN)
(setq fmt (cond ((memq (misc-info->footn-in misc) mx-attachments-in)
'attachment-in-text)
(author 'footnote-in-text-by)
(t 'footnote-in-text))
data (misc-info->footn-in misc))))
(set-defer-info->format defer-info fmt)
; Note: author is ignored if fmt is not *-by
(lyskom-replace-deferred defer-info data author content-type)))
(defun lyskom-insert-header-comm (text-stat misc read-text-stat)
"Get author of TEXT-NO and print a header line."
;;+++ error kommer att se annorlunda ut.
(let ((author (if text-stat
(text-stat->author text-stat)
nil))
(mx-from (car (lyskom-get-aux-item (text-stat->aux-items text-stat) 17)))
(read-mx-from (car (lyskom-get-aux-item (text-stat->aux-items read-text-stat) 17)))
(mx-author (car (lyskom-get-aux-item (text-stat->aux-items text-stat) 16)))
(mx-attachments-in (lyskom-get-text-attachments read-text-stat))
(mx-belongs-to (mapcar
(lambda (el)
(string-to-number (aux-item->data el)))
(lyskom-get-aux-item (text-stat->aux-items read-text-stat) 10100)))
(content-type "")
(read-content-type "")
(is-attachment nil)
(type (misc-info->type misc)))
(setq author (or (lyskom-format-mx-author mx-from mx-author) author))
;; Extract the content type
(if (and mx-from
(setq content-type
(car (lyskom-get-aux-item (text-stat->aux-items
text-stat) 1))))
(progn (string-match "^\\(\\S-+\\)" (aux-item->data content-type))
(setq content-type (format "(%s) "
(aux-item->data content-type))))
(setq content-type ""))
(if (and read-mx-from
(setq read-content-type
(car (lyskom-get-aux-item (text-stat->aux-items
read-text-stat) 1))))
(progn (string-match "^\\(\\S-+\\)" (aux-item->data read-content-type))
(setq read-content-type (format "(%s) "
(aux-item->data read-content-type))))
(setq read-content-type ""))
(cond
((eq type 'COMM-TO)
(lyskom-format-insert (if (and (memq (misc-info->comm-to misc) mx-belongs-to)
(setq is-attachment t))
'attachment-to-text
'comment-to-text)
(misc-info->comm-to misc)
nil
read-content-type))
((eq type 'FOOTN-TO)
(lyskom-format-insert (if (and (memq (misc-info->footn-to misc) mx-belongs-to)
(setq is-attachment t))
'attachment-to-text
'footnote-to-text)
(misc-info->footn-to misc)
nil
read-content-type))
((eq type 'COMM-IN)
(lyskom-format-insert (if (and (memq (misc-info->comm-in misc) mx-attachments-in)
(setq is-attachment t))
'attachment-in-text
'comment-in-text)
(misc-info->comm-in misc)
nil
content-type))
((eq type 'FOOTN-IN)
(lyskom-format-insert (if (and (memq (misc-info->footn-in misc) mx-attachments-in)
(setq is-attachment t))
'attachment-in-text
'footnote-in-text)
(misc-info->footn-in misc)
nil
content-type)))
(if (and author (not is-attachment))
(lyskom-format-insert 'written-by author)
(lyskom-insert "\n"))))
(defun lyskom-format-mx-author (mx-from mx-author)
(let ((author nil)
(mx-author (if (and mx-author (equal (aux-item->data mx-author) ""))
nil
mx-author)))
(when (or mx-from mx-author)
(setq author (lyskom-get-string 'email-name-prefix))
(when mx-author (setq author (concat author (aux-item->data mx-author))))
(when (and mx-from mx-author) (setq author (concat author " ")))
(when mx-from
(setq author (concat author
(lyskom-format
"<%[%#1@%#2s%]>"
(lyskom-default-button 'email (aux-item->data mx-from))
(aux-item->data mx-from)))))
(setq author (concat (lyskom-get-string 'email-name-suffix) author))
)
author))
(defun lyskom-format-mx-date (mx-date)
(let ((date (lyskom-mx-date-to-time mx-date)))
(if date
(let ((tem (lyskom-format-time 'date-and-time date)))
(if (or kom-show-mx-date-as-local (null (time->zone date)))
tem
(concat tem " " (lyskom-format-timezone (time->zone date)))))
(aux-item->data mx-date))))
(defun lyskom-mx-date-to-time (mx-date)
(when mx-date
(let* ((date (parse-time-string (aux-item->data mx-date)))
(now (decode-time))
(sec (or (elt date 0) 0))
(min (or (elt date 1) 0))
(hour (or (elt date 2) 0))
(day (or (elt date 3) (elt now 3)))
(month (or (elt date 4) (elt now 4)))
(year (or (elt date 5) (elt now 5)))
(wday (elt date 6))
(dst (elt date 7))
(zone (elt date 8))
(convdate (decode-time (encode-time sec min hour day month year
wday dst zone))))
(setq date
(if kom-show-mx-date-as-local
convdate
(list sec min hour day month year
(or wday (elt convdate 6))
dst zone)))
(lyskom-create-time (elt date 0)
(elt date 1)
(elt date 2)
(elt date 3)
(elt date 4)
(elt date 5)
(elt date 6)
0
(elt date 7)
(elt date 8)))))
;;; Local Variables:
;;; eval: (put 'lyskom-traverse 'lisp-indent-hook 2)
;;; end:
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