1 ;;; vm-misc.el --- Miscellaneous functions for VM
3 ;; Copyright (C) 1989-2001 Kyle E. Jones
4 ;; Copyright (C) 2003-2006 Robert Widhopf-Fenk
6 ;; This program is free software; you can redistribute it and/or modify
7 ;; it under the terms of the GNU General Public License as published by
8 ;; the Free Software Foundation; either version 2 of the License, or
9 ;; (at your option) any later version.
11 ;; This program is distributed in the hope that it will be useful,
12 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;; GNU General Public License for more details.
16 ;; You should have received a copy of the GNU General Public License along
17 ;; with this program; if not, write to the Free Software Foundation, Inc.,
18 ;; 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 ;; Taken from XEmacs as GNU Emacs is missing `replace-in-string' and defining
23 ;; it may cause clashes with other packages defining it differently, in fact
24 ;; we could also call the function `replace-regexp-in-string' as Roland
25 ;; Winkler pointed out.
26 (defun vm-replace-in-string (str regexp newtext &optional literal)
27 "Replace all matches in STR for REGEXP with NEWTEXT string,
28 and returns the new string.
29 Optional LITERAL non-nil means do a literal replacement.
30 Otherwise treat `\\' in NEWTEXT as special:
31 `\\&' in NEWTEXT means substitute original matched text.
32 `\\N' means substitute what matched the Nth `\\(...\\)'.
33 If Nth parens didn't match, substitute nothing.
34 `\\\\' means insert one `\\'.
35 `\\u' means upcase the next character.
36 `\\l' means downcase the next character.
37 `\\U' means begin upcasing all following characters.
38 `\\L' means begin downcasing all following characters.
39 `\\E' means terminate the effect of any `\\U' or `\\L'."
40 (if (> (length str) 50)
41 (let ((cfs case-fold-search))
43 (setq case-fold-search cfs)
46 (while (re-search-forward regexp nil t)
47 (replace-match newtext t literal))
49 (let ((start 0) newstr)
50 (while (string-match regexp str start)
51 (setq newstr (replace-match newtext t literal str)
52 start (+ (match-end 0) (- (length newstr) (length str)))
56 (defun vm-delete-non-matching-strings (regexp list &optional destructively)
57 "Delete strings matching REGEXP from LIST.
58 Optional third arg non-nil means to destructively alter LIST, instead of
61 The new version of the list, minus the deleted strings, is returned."
62 (or destructively (setq list (copy-sequence list)))
63 (let ((curr list) (prev nil))
65 (if (string-match regexp (car curr))
71 (setcdr prev (cdr curr))
72 (setq curr (cdr curr)))))
75 (defun vm-parse (string regexp &optional matchn matches)
76 "Returns list of string by splitting STRING with REGEXP matches.
77 REGEXP must match one item and MATCHN can be used to select a match
78 group (default is 1). MATCHES is the number of time the match is
79 applied (default until it does not match anymore).
81 This function is similar to a spring-split, but a bit more complex
83 (or matchn (setq matchn 1))
85 (store-match-data nil)
86 (while (and (not (eq matches 0))
87 (string-match regexp string (match-end 0)))
88 (and (integerp matches) (setq matches (1- matches)))
89 (if (not (consp matchn))
90 (setq list (cons (substring string (match-beginning matchn)
91 (match-end matchn)) list))
94 (if (match-beginning (car tem))
95 (setq list (cons (substring string
96 (match-beginning (car tem))
97 (match-end (car tem))) list)
99 (setq tem (cdr tem))))))
100 (if (and (integerp matches) (match-end 0)
101 (not (eq (match-end 0) (length string))))
102 (setq list (cons (substring string (match-end 0) (length string))
106 (defun vm-parse-addresses (string)
112 (let (list start s char)
113 (setq work-buffer (vm-make-work-buffer))
114 (set-buffer work-buffer)
116 (goto-char (point-min))
117 (skip-chars-forward "\t\f\n\r ")
120 (skip-chars-forward "^\"\\\\,(")
121 (setq char (following-char))
127 (setq s (buffer-substring start (point)))
128 (if (or (null (string-match "^[\t\f\n\r ]+$" s))
129 (not (string= s "")))
130 (setq list (cons s list)))
131 (skip-chars-forward ",\t\f\n\r ")
132 (setq start (point)))
134 (re-search-forward "[^\\\\]\"" nil 0))
138 (while (and (not (eobp)) (not (zerop parens)))
139 (re-search-forward "[()]" nil 0)
141 (= (char-after (- (point) 2)) ?\\)))
142 ((= (preceding-char) ?\()
143 (setq parens (1+ parens)))
145 (setq parens (1- parens)))))))))
146 (setq s (buffer-substring start (point)))
147 (if (and (null (string-match "^[\t\f\n\r ]+$" s))
148 (not (string= s "")))
149 (setq list (cons s list)))
150 (mapcar 'vmrf-fix-quoted-address (reverse list)))
151 (and work-buffer (kill-buffer work-buffer)))))))
153 (defun vmrf-fix-quoted-address (a)
154 "RF: evetually there are qp-encoded addresses not quoted by \" and thus we
155 need to add quotes or leave them undecoded."
156 (let ((da (vm-decode-mime-encoded-words-in-string a)))
159 (if (or (string-match "^\\s-*\\([^\"']*,[^\"']*\\)\\b\\s-*\\(<.*\\)" da)
160 (string-match "^\\s-*\"'\\([^\"']+\\)'\"\\(.*\\)" da))
161 (concat "\"" (match-string 1 da) "\" " (match-string 2 da))
164 (defun vm-parse-structured-header (string &optional sepchar keep-quotes)
167 (let ((work-buffer nil))
171 (nonspecials "^\"\\\\( \t\n\r\f")
172 start s char sp+sepchar)
174 (setq nonspecials (concat nonspecials (list sepchar))
175 sp+sepchar (concat "\t\f\n\r " (list sepchar))))
176 (setq work-buffer (vm-make-work-buffer))
177 (buffer-disable-undo work-buffer)
178 (set-buffer work-buffer)
180 (goto-char (point-min))
181 (skip-chars-forward "\t\f\n\r ")
184 (skip-chars-forward nonspecials)
185 (setq char (following-char))
186 (cond ((looking-at "[ \t\n\r\f]")
192 ((and sepchar (= char sepchar))
193 (setq s (buffer-substring start (point)))
194 (if (or (null (string-match "^[\t\f\n\r ]+$" s))
195 (not (string= s "")))
196 (setq list (cons s list)))
197 (skip-chars-forward sp+sepchar)
198 (setq start (point)))
199 ((looking-at " \t\n\r\f")
200 (skip-chars-forward " \t\n\r\f"))
207 (if (null (re-search-forward "[\\\\\"]" nil t))
209 (setq char (char-after (1- (point))))
210 (cond ((char-equal char ?\\)
215 (t (if (not keep-quotes)
224 (if (null (re-search-forward "[\\\\()]" nil t))
226 (setq char (char-after (1- (point))))
227 (cond ((char-equal char ?\\)
231 ((char-equal char ?\()
232 (setq parens (1+ parens)))
234 (setq parens (1- parens)
235 done (zerop parens))))))
236 (delete-region pos (point))))))
237 (setq s (buffer-substring start (point)))
238 (if (and (null (string-match "^[\t\f\n\r ]+$" s))
239 (not (string= s "")))
240 (setq list (cons s list)))
242 (and work-buffer (kill-buffer work-buffer)))))))
244 (defvar buffer-file-type)
246 (defun vm-write-string (where string)
248 (vm-save-buffer-excursion
250 (goto-char (point-max))
251 (let ((buffer-read-only nil))
253 (let ((temp-buffer nil))
256 (setq temp-buffer (generate-new-buffer "*vm-work*"))
257 (set-buffer temp-buffer)
258 (setq selective-display nil)
260 ;; correct for VM's uses of this function---
261 ;; writing out message separators
262 (setq buffer-file-type nil)
263 (write-region (point-min) (point-max) where t 'quiet))
264 (and temp-buffer (kill-buffer temp-buffer))))))
266 (defun vm-check-for-killed-summary ()
267 (and (bufferp vm-summary-buffer) (null (buffer-name vm-summary-buffer))
268 (let ((mp vm-message-list))
269 (setq vm-summary-buffer nil)
271 (vm-set-su-start-of (car mp) nil)
272 (vm-set-su-end-of (car mp) nil)
273 (setq mp (cdr mp)))))
274 (and (bufferp vm-folders-summary-buffer)
275 (null (buffer-name vm-folders-summary-buffer))
276 (setq vm-folders-summary-buffer nil)))
278 (defun vm-check-for-killed-presentation ()
279 (and (bufferp vm-presentation-buffer-handle)
280 (null (buffer-name vm-presentation-buffer-handle))
282 (setq vm-presentation-buffer-handle nil
283 vm-presentation-buffer nil))))
285 (defun vm-check-for-killed-folder ()
286 (and (bufferp vm-mail-buffer) (null (buffer-name vm-mail-buffer))
287 (setq vm-mail-buffer nil)))
289 (put 'folder-read-only 'error-conditions '(folder-read-only error))
290 (put 'folder-read-only 'error-message "Folder is read-only")
292 (defun vm-abs (n) (if (< n 0) (- n) n))
294 (defun vm-last (list) (while (cdr-safe list) (setq list (cdr list))) list)
296 (defun vm-vector-to-list (vector)
297 (let ((i (1- (length vector)))
300 (setq list (cons (aref vector i) list))
304 (defun vm-extend-vector (vector length &optional fill)
305 (let ((vlength (length vector)))
306 (if (< vlength length)
307 (apply 'vector (nconc (vm-vector-to-list vector)
308 (make-list (- length vlength) fill)))
311 (defun vm-obarray-to-string-list (blobarray)
313 (mapatoms (function (lambda (s) (setq list (cons (symbol-name s) list))))
317 (defun vm-mapcar (function &rest lists)
318 (let (arglist result)
320 (setq arglist (mapcar 'car lists))
321 (setq result (cons (apply function arglist) result))
322 (setq lists (mapcar 'cdr lists)))
325 (defun vm-mapc (function &rest lists)
328 (setq arglist (mapcar 'car lists))
329 (apply function arglist)
330 (setq lists (mapcar 'cdr lists)))))
332 (defun vm-delete (predicate list &optional reverse)
333 (let ((p list) (reverse (if reverse 'not 'identity)) prev)
335 (if (funcall reverse (funcall predicate (car p)))
337 (setq list (cdr list) p list)
338 (setcdr prev (cdr p))
340 (setq prev p p (cdr p))))
343 (defun vm-delete-directory-file-names (list)
344 (vm-delete 'file-directory-p list))
346 (defun vm-delete-backup-file-names (list)
347 (vm-delete 'backup-file-name-p list))
349 (defun vm-delete-auto-save-file-names (list)
350 (vm-delete 'auto-save-file-name-p list))
352 (defun vm-delete-index-file-names (list)
353 (vm-delete 'vm-index-file-name-p list))
355 (defun vm-delete-directory-names (list)
356 (vm-delete 'file-directory-p list))
358 (defun vm-index-file-name-p (file)
359 (and (file-regular-p file)
360 (stringp vm-index-file-suffix)
361 (let ((str (concat (regexp-quote vm-index-file-suffix) "$")))
362 (string-match str file))
365 (defun vm-delete-duplicates (list &optional all hack-addresses)
366 "Delete duplicate equivalent strings from the list.
367 If ALL is t, then if there is more than one occurrence of a string in the list,
368 then all occurrences of it are removed instead of just the subsequent ones.
369 If HACK-ADDRESSES is t, then the strings are considered to be mail addresses,
370 and only the address part is compared (so that \"Name <foo>\" and \"foo\"
371 would be considered to be equivalent.)"
372 (let ((hashtable vm-delete-duplicates-obarray)
375 (fillarray hashtable 0)
379 (nth 1 (funcall vm-chop-full-name-function (car list)))
381 sym-string (or sym-string "-unparseable-garbage-")
382 sym (intern (if hack-addresses (downcase sym-string) sym-string)
385 (and all (setcar (symbol-value sym) nil))
386 (setq new-list (cons (car list) new-list))
388 (setq list (cdr list)))
389 (delq nil (nreverse new-list))))
391 (defun vm-member-0 (thing list)
394 (and (equal (car list) thing)
396 (setq list (cdr list)))
399 (fset 'vm-member (symbol-function (if (fboundp 'member) 'member 'vm-member-0)))
401 (defun vm-delqual (ob list)
405 (if (not (equal ob (car curr)))
409 (setq list (cdr list)
411 (setq curr (cdr curr))
412 (setcdr prev curr))))
415 (defun vm-copy-local-variables (buffer &rest variables)
416 (let ((values (mapcar 'symbol-value variables)))
419 (vm-mapc 'set variables values))))
421 (put 'folder-empty 'error-conditions '(folder-empty error))
422 (put 'folder-empty 'error-message "Folder is empty")
423 (put 'unrecognized-folder-type 'error-conditions
424 '(unrecognized-folder-type error))
425 (put 'unrecognized-folder-type 'error-message "Unrecognized folder type")
427 (defun vm-error-if-folder-empty ()
428 (while (null vm-message-list)
430 (signal 'unrecognized-folder-type nil)
431 (signal 'folder-empty nil))))
433 (defun vm-copy (object)
434 (cond ((consp object)
435 (let (return-value cons)
436 (setq return-value (cons (vm-copy (car object)) nil)
439 (while (consp object)
440 (setcdr cons (cons (vm-copy (car object)) nil))
441 (setq cons (cdr cons)
442 object (cdr object)))
445 ((vectorp object) (apply 'vector (mapcar 'vm-copy object)))
446 ((stringp object) (copy-sequence object))
447 ((markerp object) (copy-marker object))
450 (defun vm-run-message-hook (message &optional hook-variable)
452 (set-buffer (vm-buffer-of message))
456 (narrow-to-region (vm-headers-of message) (vm-text-end-of message))
457 (run-hooks hook-variable)))))
459 (defun vm-error-free-call (function &rest args)
461 (apply function args)
464 (put 'beginning-of-folder 'error-conditions '(beginning-of-folder error))
465 (put 'beginning-of-folder 'error-message "Beginning of folder")
466 (put 'end-of-folder 'error-conditions '(end-of-folder error))
467 (put 'end-of-folder 'error-message "End of folder")
469 (defun vm-trace (&rest args)
471 (set-buffer (get-buffer-create "*vm-trace*"))
472 (apply 'insert args)))
474 (defun vm-timezone-make-date-sortable (string)
475 (or (cdr (assq string vm-sortable-date-alist))
476 (let ((vect (vm-parse-date string))
477 (date (vm-parse (current-time-string) " *\\([^ ]+\\)")))
478 ;; if specified date is incomplete fill in the holes
479 ;; with useful information, defaulting to the current
480 ;; date and timezone for everything except hh:mm:ss which
481 ;; defaults to midnight.
482 (if (equal (aref vect 1) "")
483 (aset vect 1 (nth 2 date)))
484 (if (equal (aref vect 2) "")
485 (aset vect 2 (nth 1 date)))
486 (if (equal (aref vect 3) "")
487 (aset vect 3 (nth 4 date)))
488 (if (equal (aref vect 4) "")
489 (aset vect 4 "00:00:00"))
490 (if (equal (aref vect 5) "")
491 (aset vect 5 (vm-current-time-zone)))
492 ;; save this work so we won't have to do it again
493 (setq vm-sortable-date-alist
496 (timezone-make-date-sortable
497 (format "%s %s %s %s %s"
503 (error "1970010100:00:00")))
504 vm-sortable-date-alist))
506 (cdr (car vm-sortable-date-alist)))))
508 (defun vm-current-time-zone ()
509 (or (condition-case nil
510 (let* ((zone (car (current-time-zone)))
511 (absmin (/ (vm-abs zone) 60)))
512 (format "%c%02d%02d" (if (< zone 0) ?- ?+)
513 (/ absmin 60) (% absmin 60)))
515 (let ((temp-buffer nil))
519 (setq temp-buffer (vm-make-work-buffer))
520 (set-buffer temp-buffer)
521 (call-process "date" nil temp-buffer nil)
522 (nth 4 (vm-parse (vm-buffer-string-no-properties)
524 (and temp-buffer (kill-buffer temp-buffer)))
528 (defun vm-should-generate-summary ()
529 (cond ((eq vm-startup-with-summary t) t)
530 ((integerp vm-startup-with-summary)
531 (let ((n vm-startup-with-summary))
532 (cond ((< n 0) (null (nth (vm-abs n) vm-message-list)))
534 (t (nth (1- n) vm-message-list)))))
535 (vm-startup-with-summary t)
538 (defun vm-find-composition-buffer (&optional not-picky)
539 (let ((b-list (buffer-list)) choice alternate)
542 (set-buffer (car b-list))
543 (if (eq major-mode 'mail-mode)
544 (if (buffer-modified-p)
545 (setq choice (current-buffer)
547 (and not-picky (null alternate)
548 (setq alternate (current-buffer)))
549 (setq b-list (cdr b-list)))
550 (setq b-list (cdr b-list))))
551 (or choice alternate))))
553 (defun vm-get-file-buffer (file)
554 "Like get-file-buffer, but also checks buffers against FILE's truename"
555 (or (get-file-buffer file)
556 (and (fboundp 'file-truename)
557 (get-file-buffer (file-truename file)))
558 (and (fboundp 'find-buffer-visiting)
559 (find-buffer-visiting file))))
561 (defun vm-set-region-face (start end face)
562 (let ((e (vm-make-extent start end)))
563 (vm-set-extent-property e 'face face)))
565 (defun vm-default-buffer-substring-no-properties (beg end &optional buffer)
569 (buffer-substring beg end))
570 (buffer-substring beg end))))
571 (set-text-properties 0 (length s) nil s)
574 (fset 'vm-buffer-substring-no-properties
575 (cond ((fboundp 'buffer-substring-no-properties)
576 (function buffer-substring-no-properties))
578 (function buffer-substring))
579 (t (function vm-default-buffer-substring-no-properties))))
581 (defun vm-buffer-string-no-properties ()
582 (vm-buffer-substring-no-properties (point-min) (point-max)))
584 (defun vm-insert-region-from-buffer (buffer &optional start end)
585 (let ((target-buffer (current-buffer)))
589 (or start (setq start (point-min)))
590 (or end (setq end (point-max)))
591 (set-buffer target-buffer)
592 (insert-buffer-substring buffer start end)
594 (set-buffer target-buffer)))
596 (if (not (fboundp 'vm-extent-property))
598 (fset 'vm-extent-property 'overlay-get)
599 (fset 'vm-extent-property 'extent-property)))
601 (if (not (fboundp 'vm-extent-object))
603 (fset 'vm-extent-object 'overlay-buffer)
604 (fset 'vm-extent-object 'extent-object)))
606 (if (not (fboundp 'vm-set-extent-property))
608 (fset 'vm-set-extent-property 'overlay-put)
609 (fset 'vm-set-extent-property 'set-extent-property)))
611 (if (not (fboundp 'vm-set-extent-endpoints))
613 (fset 'vm-set-extent-endpoints 'move-overlay)
614 (fset 'vm-set-extent-endpoints 'set-extent-endpoints)))
616 (if (not (fboundp 'vm-make-extent))
618 (fset 'vm-make-extent 'make-overlay)
619 (fset 'vm-make-extent 'make-extent)))
621 (if (not (fboundp 'vm-extent-end-position))
623 (fset 'vm-extent-end-position 'overlay-end)
624 (fset 'vm-extent-end-position 'extent-end-position)))
626 (if (not (fboundp 'vm-extent-start-position))
628 (fset 'vm-extent-start-position 'overlay-start)
629 (fset 'vm-extent-start-position 'extent-start-position)))
631 (if (not (fboundp 'vm-detach-extent))
633 (fset 'vm-detach-extent 'delete-overlay)
634 (fset 'vm-detach-extent 'detach-extent)))
636 (if (not (fboundp 'vm-extent-properties))
638 (fset 'vm-extent-properties 'overlay-properties)
639 (fset 'vm-extent-properties 'extent-properties)))
641 (defun vm-extent-at (pos &optional object property)
642 (if (fboundp 'extent-at)
643 (extent-at pos object property)
644 (let ((o-list (overlays-at pos))
649 (if (overlay-get (car o-list) property)
652 (setq o-list (cdr o-list))))
655 (defun vm-copy-extent (e)
656 (let ((props (vm-extent-properties e))
657 (ee (vm-make-extent (vm-extent-start-position e)
658 (vm-extent-end-position e))))
660 (vm-set-extent-property ee (car props) (car (cdr props)))
661 (setq props (cdr (cdr props))))))
663 (defun vm-make-tempfile (&optional filename-suffix proposed-filename)
664 (let ((modes (default-file-modes))
665 (file (vm-make-tempfile-name filename-suffix proposed-filename)))
668 (set-default-file-modes (vm-octal 600))
669 (vm-error-free-call 'delete-file file)
670 (write-region (point) (point) file nil 0))
671 (set-default-file-modes modes))
674 (defun vm-make-tempfile-name (&optional filename-suffix proposed-filename)
675 (if (stringp proposed-filename)
676 (setq proposed-filename (file-name-nondirectory proposed-filename)))
678 (cond ((and (stringp proposed-filename)
680 (setq filename (convert-standard-filename
683 vm-temp-file-directory))))))
685 ((stringp proposed-filename)
688 (setq filename (convert-standard-filename
693 vm-temp-file-directory))
694 vm-tempfile-counter (1+ vm-tempfile-counter)
695 done (not (file-exists-p filename))))))
699 (setq filename (convert-standard-filename
704 (or filename-suffix ""))
705 vm-temp-file-directory))
706 vm-tempfile-counter (1+ vm-tempfile-counter)
707 done (not (file-exists-p filename)))))))
710 (defun vm-make-work-buffer (&optional name)
711 (let ((default-enable-multibyte-characters nil)
713 (setq work-buffer (generate-new-buffer (or name "*vm-workbuf*")))
714 (buffer-disable-undo work-buffer)
715 ;; probably not worth doing since no one sets buffer-offer-save
716 ;; non-nil globally, do they?
718 ;; (set-buffer work-buffer)
719 ;; (setq buffer-offer-save nil))
722 (defun vm-make-multibyte-work-buffer (&optional name)
723 (let ((default-enable-multibyte-characters t)
725 (setq work-buffer (generate-new-buffer (or name "*vm-workbuf*")))
726 (buffer-disable-undo work-buffer)
727 ;; probably not worth doing since no one sets buffer-offer-save
728 ;; non-nil globally, do they?
730 ;; (set-buffer work-buffer)
731 ;; (setq buffer-offer-save nil))
734 (defun vm-insert-char (char &optional count ignored buffer)
737 (insert-char char count ignored buffer)
738 (fset 'vm-insert-char 'insert-char))
739 (wrong-number-of-arguments
740 (fset 'vm-insert-char 'vm-xemacs-compatible-insert-char)
741 (vm-insert-char char count ignored buffer))))
743 (defun vm-xemacs-compatible-insert-char (char &optional count ignored buffer)
744 (if (and buffer (eq buffer (current-buffer)))
745 (insert-char char count)
748 (insert-char char count))))
750 (defun vm-symbol-lists-intersect-p (list1 list2)
753 (and (memq (car list1) list2)
755 (setq list1 (cdr list1)))
758 (defun vm-set-buffer-variable (buffer var value)
763 (defun vm-buffer-variable-value (buffer var)
768 (defsubst vm-with-string-as-temp-buffer (string function)
769 (let ((work-buffer nil))
772 (setq work-buffer (vm-make-multibyte-work-buffer))
773 (set-buffer work-buffer)
777 (and work-buffer (kill-buffer work-buffer)))))
779 (defun vm-string-assoc (elt list)
780 (let ((case-fold-search t)
782 (elt (regexp-quote elt)))
783 (while (and list (not found))
784 (if (and (equal 0 (string-match elt (car (car list))))
785 (= (match-end 0) (length (car (car list)))))
787 (setq list (cdr list))))
790 (defun vm-nonneg-string (n)
795 (defun vm-string-member (elt list)
796 (let ((case-fold-search t)
798 (elt (regexp-quote elt)))
799 (while (and list (not found))
800 (if (and (equal 0 (string-match elt (car list)))
801 (= (match-end 0) (length (car list))))
803 (setq list (cdr list))))
806 (defun vm-string-equal-ignore-case (str1 str2)
807 (let ((case-fold-search t)
808 (reg (regexp-quote str1)))
809 (and (equal 0 (string-match reg str2))
810 (= (match-end 0) (length str2)))))
812 (defun vm-time-difference (t1 t2)
813 (let (usecs secs 65536-secs carry)
814 (setq usecs (- (nth 2 t1) (nth 2 t2)))
817 usecs (+ usecs 1000000))
819 (setq secs (- (nth 1 t1) (nth 1 t2) carry))
824 (setq 65536-secs (- (nth 0 t1) (nth 0 t2) carry))
825 (+ (* 65536-secs 65536)
827 (/ usecs (if (featurep 'lisp-float-type) 1e6 1000000)))))
829 (if (fboundp 'char-to-int)
830 (fset 'vm-char-to-int 'char-to-int)
831 (fset 'vm-char-to-int 'identity))
833 (cond ((fboundp 'charsets-in-region)
834 (fset 'vm-charsets-in-region 'charsets-in-region))
835 ((fboundp 'find-charset-region)
836 (fset 'vm-charsets-in-region 'find-charset-region)))
838 (cond ((fboundp 'coding-system-name)
839 (fset 'vm-coding-system-name 'coding-system-name))
841 (fset 'vm-coding-system-name 'symbol-name)))
843 (defun vm-get-file-line-ending-coding-system (file)
844 (if (not (or vm-fsfemacs-mule-p vm-xemacs-mule-p vm-xemacs-file-coding-p))
846 (let ((coding-system-for-read (vm-binary-coding-system))
850 (setq work-buffer (vm-make-work-buffer))
851 (set-buffer work-buffer)
853 (insert-file-contents file nil 0 4096)
855 (goto-char (point-min))
856 (cond ((re-search-forward "[^\r]\n" nil t)
857 (if vm-fsfemacs-mule-p 'raw-text-unix 'no-conversion-unix))
858 ((re-search-forward "\r[^\n]" nil t)
859 (if vm-fsfemacs-mule-p 'raw-text-mac 'no-conversion-mac))
860 ((search-forward "\r\n" nil t)
861 (if vm-fsfemacs-mule-p 'raw-text-dos 'no-conversion-dos))
862 (t (vm-line-ending-coding-system))))
863 (and work-buffer (kill-buffer work-buffer))))))
865 (defun vm-new-folder-line-ending-coding-system ()
866 (cond ((eq vm-default-new-folder-line-ending-type nil)
867 (vm-line-ending-coding-system))
868 ((eq vm-default-new-folder-line-ending-type 'lf)
869 (if vm-fsfemacs-mule-p 'raw-text-unix 'no-conversion-unix))
870 ((eq vm-default-new-folder-line-ending-type 'crlf)
871 (if vm-fsfemacs-mule-p 'raw-text-dos 'no-conversion-dos))
872 ((eq vm-default-new-folder-line-ending-type 'cr)
873 (if vm-fsfemacs-mule-p 'raw-text-mac 'no-conversion-mac))
875 (vm-line-ending-coding-system))))
877 (defun vm-collapse-whitespace ()
878 (goto-char (point-min))
879 (while (re-search-forward "[ \t\n]+" nil 0)
880 (replace-match " " t t)))
882 (defun vm-fill-paragraphs-containing-long-lines (len start end)
884 (buffer-read-only nil)
885 (fill-column vm-paragraph-fill-column)
886 ;; user doesn't want long lines, so set this to zero for them.
887 (filladapt-fill-column-forward-fuzz 0))
891 (or (markerp end) (setq end (vm-marker end)))
893 (while (and (not done) (re-search-forward "[ \t]*$" end t))
895 (if (>= (current-column) len)
901 (setq done (>= (point) end)))))))
903 (defun vm-make-message-id ()
905 (time (current-time)))
906 (setq hostname (cond ((string-match "\\." (system-name))
908 ((and (stringp mail-host-address)
909 (string-match "\\." mail-host-address))
911 (t "gargle.gargle.HOWL")))
912 (format "<%d.%d.%d.%d@%s>"
913 (car time) (nth 1 time) (nth 2 time)
917 (defun vm-keep-some-buffers (buffer ring-variable number-to-keep)
918 (if (memq buffer (symbol-value ring-variable))
919 (set ring-variable (delq buffer (symbol-value ring-variable))))
920 (set ring-variable (cons buffer (symbol-value ring-variable)))
921 (set ring-variable (vm-delete 'buffer-name
922 (symbol-value ring-variable) t))
923 (if (not (eq number-to-keep t))
924 (let ((extras (nthcdr (or number-to-keep 0)
925 (symbol-value ring-variable))))
929 (or (not (buffer-modified-p b))
930 (not (vm-buffer-variable-value
931 b buffer-offer-save)))
934 (and (symbol-value ring-variable) extras
935 (setcdr (memq (car extras) (symbol-value ring-variable))
938 (defvar enable-multibyte-characters)
939 (defvar buffer-display-table)
940 (defun vm-fsfemacs-nonmule-display-8bit-chars ()
941 (cond ((and vm-fsfemacs-p
942 (or (not vm-fsfemacs-mule-p)
943 (and (boundp 'enable-multibyte-characters)
944 (not enable-multibyte-characters))))
946 ;; We need the function make-display-table, but it is
947 ;; in disp-table.el, which overwrites the value of
948 ;; standard-display-table when it is loaded, which
949 ;; sucks. So here we cruftily copy just enough goop
950 ;; out of disp-table.el so that a display table can be
951 ;; created, and thereby avoid loading disp-table.
952 (put 'display-table 'char-table-extra-slots 6)
953 (setq tab (make-char-table 'display-table nil))
955 (aset tab i (vector i))
957 (setq buffer-display-table tab)))))
959 (defun vm-url-decode-string (string)
960 (vm-with-string-as-temp-buffer string 'vm-url-decode-buffer))
962 (defun vm-url-decode-buffer ()
963 (let ((case-fold-search t)
964 (hex-digit-alist '((?0 . 0) (?1 . 1) (?2 . 2) (?3 . 3)
965 (?4 . 4) (?5 . 5) (?6 . 6) (?7 . 7)
966 (?8 . 8) (?9 . 9) (?A . 10) (?B . 11)
967 (?C . 12) (?D . 13) (?E . 14) (?F . 15)
968 (?a . 10) (?b . 11) (?c . 12) (?d . 13)
969 (?e . 14) (?f . 15)))
972 (goto-char (point-min))
973 (while (re-search-forward "%[0-9A-F][0-9A-F]" nil t)
974 (insert-char (+ (* (cdr (assq (char-after (- (point) 2))
977 (cdr (assq (char-after (- (point) 1))
980 (delete-region (- (point) 1) (- (point) 4))))))
982 (defun vm-process-sentinel-kill-buffer (process what-happened)
983 (kill-buffer (process-buffer process)))
985 (defun vm-fsfemacs-scroll-bar-width ()
986 (or vm-fsfemacs-cached-scroll-bar-width
988 (setq size (frame-pixel-width))
989 (scroll-bar-mode nil)
990 (setq size (- size (frame-pixel-width)))
991 (scroll-bar-mode nil)
992 (setq vm-fsfemacs-cached-scroll-bar-width size))))
994 (defvar vm-disable-modes-ignore nil
995 "List of modes ignored by `vm-disable-modes'.
996 Any mode causing an error while trying to disable it will be added to this
997 list. It still will try to diable it, but no error messages are generated
1000 (defun vm-disable-modes (&optional modes)
1001 "Disable the given minor modes.
1002 If MODES is nil the take the modes from the variable
1003 `vm-disable-modes-before-encoding'."
1006 (setq m (car modes) modes (cdr modes))
1007 (condition-case errmsg
1011 (when (not (member m vm-disable-modes-ignore))
1012 (message "Could not disable mode `%S': %S" m errmsg)
1013 (setq vm-disable-modes-ignore (cons m vm-disable-modes-ignore)))
1018 ;;; vm-misc.el ends here