1 ;;; gnus-spec.el --- format spec functions for Gnus
3 ;; Copyright (C) 1996-2012 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
27 ;; For Emacs <22.2 and XEmacs.
29 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
30 (eval-when-compile (require 'cl))
31 (defvar gnus-newsrc-file-version)
35 (defcustom gnus-use-correct-string-widths (featurep 'xemacs)
36 "*If non-nil, use correct functions for dealing with wide characters."
41 (defcustom gnus-make-format-preserve-properties (featurep 'xemacs)
42 "*If non-nil, use a replacement `format' function which preserves
43 text properties. This is only needed on XEmacs, as Emacs does this anyway."
48 ;;; Internal variables.
50 (defvar gnus-summary-mark-positions nil)
51 (defvar gnus-group-mark-positions nil)
52 (defvar gnus-group-indentation "")
54 ;; Format specs. The chunks below are the machine-generated forms
55 ;; that are to be evalled as the result of the default format strings.
56 ;; We write them in here to get them byte-compiled. That way the
57 ;; default actions will be quite fast, while still retaining the full
58 ;; flexibility of the user-defined format specs.
60 ;; First we have lots of dummy defvars to let the compiler know these
61 ;; are really dynamic variables.
63 (defvar gnus-tmp-unread)
64 (defvar gnus-tmp-replied)
65 (defvar gnus-tmp-score-char)
66 (defvar gnus-tmp-indentation)
67 (defvar gnus-tmp-opening-bracket)
68 (defvar gnus-tmp-lines)
69 (defvar gnus-tmp-name)
70 (defvar gnus-tmp-closing-bracket)
71 (defvar gnus-tmp-subject-or-nil)
72 (defvar gnus-tmp-subject)
73 (defvar gnus-tmp-marked)
74 (defvar gnus-tmp-marked-mark)
75 (defvar gnus-tmp-subscribed)
76 (defvar gnus-tmp-process-marked)
77 (defvar gnus-tmp-number-of-unread)
78 (defvar gnus-tmp-group-name)
79 (defvar gnus-tmp-group)
80 (defvar gnus-tmp-article-number)
81 (defvar gnus-tmp-unread-and-unselected)
82 (defvar gnus-tmp-news-method)
83 (defvar gnus-tmp-news-server)
84 (defvar gnus-tmp-article-number)
85 (defvar gnus-mouse-face)
86 (defvar gnus-mouse-face-prop)
87 (defvar gnus-tmp-header)
88 (defvar gnus-tmp-from)
90 (declare-function gnus-summary-from-or-to-or-newsgroups "gnus-sum"
91 (header gnus-tmp-from))
93 (defmacro gnus-lrm-string-p (string)
94 (if (fboundp 'bidi-string-mark-left-to-right)
95 ;; LRM, RLM, PDF characters as integers to avoid breaking Emacs
97 `(memq (aref ,string (1- (length ,string))) '(8206 8207 8236))
100 (defvar gnus-lrm-string (if (ignore-errors (string 8206))
101 (propertize (string 8206) 'invisible t)
104 (defun gnus-summary-line-format-spec ()
105 (insert gnus-tmp-unread gnus-tmp-replied
106 gnus-tmp-score-char gnus-tmp-indentation)
107 (gnus-put-text-property
111 (format "%c%4s: %-23s%c" gnus-tmp-opening-bracket gnus-tmp-lines
114 (gnus-summary-from-or-to-or-newsgroups
115 gnus-tmp-header gnus-tmp-from))))
116 (if (> (length val) 23)
117 (if (gnus-lrm-string-p val)
118 (concat (substring val 0 23) gnus-lrm-string)
119 (substring val 0 23))
121 gnus-tmp-closing-bracket))
123 gnus-mouse-face-prop gnus-mouse-face)
124 (insert " " gnus-tmp-subject-or-nil "\n"))
126 (defvar gnus-summary-line-format-spec
127 (gnus-byte-code 'gnus-summary-line-format-spec))
129 (defun gnus-summary-dummy-line-format-spec ()
131 (gnus-put-text-property
136 gnus-mouse-face-prop gnus-mouse-face)
137 (insert " " gnus-tmp-subject "\n"))
139 (defvar gnus-summary-dummy-line-format-spec
140 (gnus-byte-code 'gnus-summary-dummy-line-format-spec))
142 (defun gnus-group-line-format-spec ()
143 (insert gnus-tmp-marked-mark gnus-tmp-subscribed
144 gnus-tmp-process-marked
145 gnus-group-indentation
146 (format "%5s: " gnus-tmp-number-of-unread))
147 (gnus-put-text-property
150 (insert gnus-tmp-group "\n")
152 gnus-mouse-face-prop gnus-mouse-face))
153 (defvar gnus-group-line-format-spec
154 (gnus-byte-code 'gnus-group-line-format-spec))
156 (defvar gnus-format-specs
157 `((version . ,emacs-version)
158 (gnus-version . ,(gnus-continuum-version))
159 (group "%M\%S\%p\%P\%5y: %(%g%)\n" ,gnus-group-line-format-spec)
160 (summary-dummy "* %(: :%) %S\n"
161 ,gnus-summary-dummy-line-format-spec)
162 (summary "%U%R%z%I%(%[%4L: %-23,23f%]%) %s\n"
163 ,gnus-summary-line-format-spec))
164 "Alist of format specs.")
166 (defvar gnus-default-format-specs gnus-format-specs)
168 (defvar gnus-article-mode-line-format-spec nil)
169 (defvar gnus-summary-mode-line-format-spec nil)
170 (defvar gnus-group-mode-line-format-spec nil)
172 ;;; Phew. All that gruft is over with, fortunately.
175 (defun gnus-update-format (var)
176 "Update the format specification near point."
181 ;; Find the end of the current word.
182 (re-search-forward "[ \t\n]" nil t)
184 (when (re-search-backward "\\(gnus-[-a-z]+-line-format\\)" nil t)
186 (let* ((type (intern (progn (string-match "gnus-\\([-a-z]+\\)-line" var)
187 (match-string 1 var))))
188 (entry (assq type gnus-format-specs))
191 (setq gnus-format-specs (delq entry gnus-format-specs)))
193 (intern (format "%s-spec" var))
194 (gnus-parse-format (setq value (symbol-value (intern var)))
195 (symbol-value (intern (format "%s-alist" var)))
196 (not (string-match "mode" var))))
197 (setq spec (symbol-value (intern (format "%s-spec" var))))
198 (push (list type value spec) gnus-format-specs)
200 (pop-to-buffer "*Gnus Format*")
202 (lisp-interaction-mode)
203 (insert (gnus-pp-to-string spec))))
205 (defun gnus-update-format-specifications (&optional force &rest types)
206 "Update all (necessary) format specifications.
207 Return a list of updated types."
208 ;; Make the indentation array.
209 ;; See whether all the stored info needs to be flushed.
211 (not gnus-newsrc-file-version)
212 (not (equal (gnus-continuum-version)
213 (gnus-continuum-version gnus-newsrc-file-version)))
214 (not (equal emacs-version
215 (cdr (assq 'version gnus-format-specs)))))
216 (setq gnus-format-specs nil))
217 ;; Flush the group format spec cache if there's the grouplens stuff
218 ;; or it doesn't support decoded group names.
219 (when (memq 'group types)
220 (let* ((spec (assq 'group gnus-format-specs))
221 (sspec (gnus-prin1-to-string (nth 2 spec))))
222 (when (or (string-match " gnus-tmp-grouplens[ )]" sspec)
223 (not (string-match " gnus-tmp-decoded-group[ )]" sspec)))
224 (setq gnus-format-specs (delq spec gnus-format-specs)))))
226 ;; Go through all the formats and see whether they need updating.
227 (let (new-format entry type val updated)
228 (while (setq type (pop types))
229 ;; Jump to the proper buffer to find out the value of the
230 ;; variable, if possible. (It may be buffer-local.)
232 (let ((buffer (intern (format "gnus-%s-buffer" type))))
233 (when (and (boundp buffer)
234 (setq val (symbol-value buffer))
235 (gnus-buffer-exists-p val))
237 (setq new-format (symbol-value
238 (intern (format "gnus-%s-line-format" type)))))
239 (setq entry (cdr (assq type gnus-format-specs)))
241 (equal (car entry) new-format))
242 ;; Use the old format.
243 (set (intern (format "gnus-%s-line-format-spec" type))
245 ;; This is a new format.
247 (if (not (stringp new-format))
248 ;; This is a function call or something.
250 ;; This is a "real" format.
254 (intern (format "gnus-%s-line-format-alist" type)))
255 (not (string-match "mode$" (symbol-name type))))))
256 ;; Enter the new format spec into the list.
259 (setcar (cdr entry) val)
260 (setcar entry new-format))
261 (push (list type new-format val) gnus-format-specs))
262 (set (intern (format "gnus-%s-line-format-spec" type)) val)
263 (push type updated))))
265 (unless (assq 'version gnus-format-specs)
266 (push (cons 'version emacs-version) gnus-format-specs))
269 (defcustom gnus-mouse-face-0 'highlight
270 "The \"%(hello%)\" face."
274 (defcustom gnus-mouse-face-1 'highlight
275 "The \"%1(hello%)\" face."
279 (defcustom gnus-mouse-face-2 'highlight
280 "The \"%2(hello%)\" face."
284 (defcustom gnus-mouse-face-3 'highlight
285 "The \"%3(hello%)\" face."
289 (defcustom gnus-mouse-face-4 'highlight
290 "The \"%4(hello%)\" face."
294 (defun gnus-mouse-face-function (form type)
295 `(gnus-put-text-property
296 (point) (progn ,@form (point))
300 `(quote ,(symbol-value (intern (format "gnus-mouse-face-%d" type)))))))
302 (defcustom gnus-face-0 'bold
303 "The \"%{hello%}\" face."
307 (defcustom gnus-face-1 'italic
308 "The \"%1{hello%}\" face."
312 (defcustom gnus-face-2 'bold-italic
313 "The \"%2{hello%}\" face."
317 (defcustom gnus-face-3 'bold
318 "The \"%3{hello%}\" face."
322 (defcustom gnus-face-4 'bold
323 "The \"%4{hello%}\" face."
327 (defun gnus-face-face-function (form type)
328 `(gnus-add-text-properties
329 (point) (progn ,@form (point))
330 '(gnus-face t face ,(symbol-value (intern (format "gnus-face-%d" type))))))
332 (defun gnus-balloon-face-function (form type)
333 `(gnus-put-text-property
334 (point) (progn ,@form (point))
335 ,(if (fboundp 'balloon-help-mode)
338 ,(intern (format "gnus-balloon-face-%d" type))))
340 (defun gnus-spec-tab (column)
342 `(insert-char ? (max (- ,column (current-column)) 0))
343 (let ((column (abs column)))
344 `(if (> (current-column) ,column)
346 (if (= (move-to-column ,column) ,column)
347 (delete-region (point) end)
348 (delete-region (1- (point)) end)
350 (insert-char ? (max (- ,column (current-column)) 0))))))
352 (defun gnus-correct-length (string)
353 "Return the correct width of STRING."
354 (apply #'+ (mapcar #'char-width string)))
356 (defun gnus-correct-substring (string start &optional end)
361 (length (length string))
362 (string (concat string "\0")))
363 ;; Find the start position.
364 (while (and (< seek length)
366 (incf wseek (char-width (aref string seek)))
369 ;; Find the end position.
370 (while (and (<= seek length)
373 (incf wseek (char-width (aref string seek)))
376 (substring string wstart (1- wend))))
378 (defun gnus-string-width-function ()
380 (gnus-use-correct-string-widths
381 'gnus-correct-length)
382 ((fboundp 'string-width)
387 (defun gnus-substring-function ()
389 (gnus-use-correct-string-widths
390 'gnus-correct-substring)
391 ((fboundp 'string-width)
392 'gnus-correct-substring)
396 (defun gnus-tilde-max-form (el max-width)
397 "Return a form that limits EL to MAX-WIDTH."
398 (let ((max (abs max-width))
399 (length-fun (gnus-string-width-function))
400 (substring-fun (gnus-substring-function)))
402 `(if (> (,length-fun ,el) ,max)
404 `(,substring-fun ,el (- (,length-fun ,el) ,max))
405 `(if (gnus-lrm-string-p ,el)
406 (concat (,substring-fun ,el 0 ,max) ,gnus-lrm-string)
407 (,substring-fun ,el 0 ,max)))
409 `(let ((val (eval ,el)))
410 (if (> (,length-fun val) ,max)
412 `(,substring-fun val (- (,length-fun val) ,max))
413 `(if (gnus-lrm-string-p val)
414 (concat (,substring-fun val 0 ,max) ,gnus-lrm-string)
415 (,substring-fun val 0 ,max)))
418 (defun gnus-tilde-cut-form (el cut-width)
419 "Return a form that cuts CUT-WIDTH off of EL."
420 (let ((cut (abs cut-width))
421 (length-fun (gnus-string-width-function))
422 (substring-fun (gnus-substring-function)))
424 `(if (> (,length-fun ,el) ,cut)
426 `(,substring-fun ,el 0 (- (,length-fun ,el) ,cut))
427 `(,substring-fun ,el ,cut))
429 `(let ((val (eval ,el)))
430 (if (> (,length-fun val) ,cut)
432 `(,substring-fun val 0 (- (,length-fun val) ,cut))
433 `(,substring-fun val ,cut))
436 (defun gnus-tilde-ignore-form (el ignore-value)
437 "Return a form that is blank when EL is IGNORE-VALUE."
439 `(if (equal ,el ,ignore-value)
441 `(let ((val (eval ,el)))
442 (if (equal val ,ignore-value)
445 (defun gnus-pad-form (el pad-width)
446 "Return a form that pads EL to PAD-WIDTH accounting for multi-column
447 characters correctly. This is because `format' may pad to columns or to
448 characters when given a pad value."
449 (let ((pad (abs pad-width))
450 (side (< 0 pad-width))
451 (length-fun (gnus-string-width-function)))
453 `(let ((need (- ,pad (,length-fun ,el))))
455 (concat ,(when side '(make-string need ?\ ))
457 ,(when (not side) '(make-string need ?\ )))
459 `(let* ((val (eval ,el))
460 (need (- ,pad (,length-fun val))))
462 (concat ,(when side '(make-string need ?\ ))
464 ,(when (not side) '(make-string need ?\ )))
467 (defun gnus-parse-format (format spec-alist &optional insert)
468 ;; This function parses the FORMAT string with the help of the
469 ;; SPEC-ALIST and returns a list that can be eval'ed to return the
470 ;; string. If the FORMAT string contains the specifiers %( and %)
471 ;; the text between them will have the mouse-face text property.
472 ;; If the FORMAT string contains the specifiers %[ and %], the text between
473 ;; them will have the balloon-help text property.
474 (let ((case-fold-search nil))
476 "\\`\\(.*\\)%[0-9]?[{(«]\\(.*\\)%[0-9]?[»})]\\(.*\n?\\)\\'\\|%[-0-9]*=\\|%[-0-9]*\\*"
478 (gnus-parse-complex-format format spec-alist)
479 ;; This is a simple format.
480 (gnus-parse-simple-format format spec-alist insert))))
482 (defun gnus-parse-complex-format (format spec-alist)
483 (let ((cursor-spec nil))
485 (gnus-set-work-buffer)
487 (goto-char (point-min))
488 (while (re-search-forward "\"" nil t)
489 (replace-match "\\\"" nil t))
490 (goto-char (point-min))
492 ;; Convert all font specs into font spec lists.
493 (while (re-search-forward "%\\([0-9]+\\)?\\([«»{}()]\\)" nil t)
494 (let ((number (if (match-beginning 1)
495 (match-string 1) "0"))
496 (delim (aref (match-string 2) 0)))
497 (if (or (= delim ?\()
500 (replace-match (concat "\"("
501 (cond ((= delim ?\() "mouse")
502 ((= delim ?\{) "face")
506 (replace-match "\")\""))))
507 (goto-char (point-max))
509 ;; Convert point position commands.
510 (goto-char (point-min))
511 (let ((case-fold-search nil))
512 (while (re-search-forward "%\\([-0-9]+\\)?\\*" nil t)
513 (replace-match "\"(point)\"" t t)
514 (setq cursor-spec t)))
515 ;; Convert TAB commands.
516 (goto-char (point-min))
517 (while (re-search-forward "%\\([-0-9]+\\)=" nil t)
518 (replace-match (format "\"(tab %s)\"" (match-string 1)) t t))
519 ;; Convert the buffer into the spec.
520 (goto-char (point-min))
521 (let ((form (read (current-buffer))))
523 `(let (gnus-position)
524 ,@(gnus-complex-form-to-spec form spec-alist)
526 (gnus-put-text-property gnus-position (1+ gnus-position)
529 ,@(gnus-complex-form-to-spec form spec-alist)))))))
531 (defun gnus-complex-form-to-spec (form spec-alist)
537 (gnus-parse-simple-format sform spec-alist t))
538 ((eq (car sform) 'point)
539 '(setq gnus-position (point)))
540 ((eq (car sform) 'tab)
541 (gnus-spec-tab (cadr sform)))
543 (funcall (intern (format "gnus-%s-face-function" (car sform)))
544 (gnus-complex-form-to-spec (cddr sform) spec-alist)
549 (defun gnus-xmas-format (fstring &rest args)
550 "A version of `format' which preserves text properties.
552 Required for XEmacs, where the built in `format' function strips all text
553 properties from both the format string and any inserted strings.
555 Only supports the format sequence %s, and %% for inserting
556 literal % characters. A pad width and an optional - (to right pad)
557 are supported for %s."
558 (let ((re "%%\\|%\\(-\\)?\\([1-9][0-9]*\\)?s")
562 (goto-char (point-min))
563 (while (re-search-forward re nil t)
564 (goto-char (match-end 0))
566 ((string= (match-string 0) "%%")
570 (error 'wrong-number-of-arguments #'my-format n fstring))
571 (let* ((minlen (string-to-number (or (match-string 2) "")))
573 (str (if (stringp arg) arg (format "%s" arg)))
574 (lpad (null (match-string 1)))
575 (padlen (max 0 (- minlen (length str)))))
577 (if lpad (insert-char ?\ padlen))
579 (unless lpad (insert-char ?\ padlen))
580 (setq args (cdr args))))))
583 (defun gnus-parse-simple-format (format spec-alist &optional insert)
584 ;; This function parses the FORMAT string with the help of the
585 ;; SPEC-ALIST and returns a list that can be eval'ed to return a
588 spec flist fstring elem result dontinsert user-defined
589 type value pad-width spec-beg cut-width ignore-value
590 tilde-form tilde elem-type extended-spec)
592 (gnus-set-work-buffer)
594 (goto-char (point-min))
595 (while (re-search-forward "%" nil t)
596 (setq user-defined nil
604 (setq spec-beg (1- (point)))
606 ;; Parse this spec fully.
609 ((looking-at "\\([-.0-9]+\\)\\(,[-0-9]+\\)?")
610 (setq pad-width (string-to-number (match-string 1)))
611 (when (match-beginning 2)
612 (setq max-width (string-to-number (buffer-substring
613 (1+ (match-beginning 2))
615 (goto-char (match-end 0)))
618 (setq tilde (read (current-buffer))
622 ((memq type '(pad pad-left))
623 (setq pad-width value))
624 ((eq type 'pad-right)
625 (setq pad-width (- value)))
626 ((memq type '(max-right max))
627 (setq max-width value))
629 (setq max-width (- value)))
630 ((memq type '(cut cut-left))
631 (setq cut-width value))
632 ((eq type 'cut-right)
633 (setq cut-width (- value)))
636 (if (stringp value) value (format "%s" value))))
638 (setq tilde-form value))
640 (error "Unknown tilde type: %s" tilde)))
645 ;; User-defined spec -- find the spec name.
646 ((eq (setq spec (char-after)) ?u)
648 (when (and (eq (setq user-defined (char-after)) ?&)
649 (looking-at "&\\([^;]+\\);"))
650 (setq user-defined (match-string 1))
651 (goto-char (match-end 1))))
653 ((and (eq spec ?&) (looking-at "&\\([^;]+\\);"))
654 (setq extended-spec (intern (match-string 1)))
655 (goto-char (match-end 1))))
657 (delete-region spec-beg (point))
659 ;; Now we have all the relevant data on this spec, so
660 ;; we start doing stuff.
663 ;; "%%" just results in a "%".
668 (setq elem (list tilde-form ?s)))
669 ;; Treat user defined format specifiers specially.
673 (list (intern (format
674 (if (stringp user-defined)
675 "gnus-user-format-function-%s"
676 "gnus-user-format-function-%c")
680 ;; Find the specification from `spec-alist'.
681 ((setq elem (cdr (assq (or extended-spec spec) spec-alist))))
682 ;; We used to use "%l" for displaying the grouplens score.
684 (setq elem '("" ?s)))
686 (setq elem '("*" ?s))))
687 (setq elem-type (cadr elem))
688 ;; Insert the new format elements.
690 (not (and (featurep 'xemacs)
691 gnus-use-correct-string-widths)))
692 (insert (number-to-string pad-width)))
693 ;; Create the form to be evalled.
694 (if (or max-width cut-width ignore-value
695 (and (featurep 'xemacs)
696 gnus-use-correct-string-widths))
699 (let ((el (car elem)))
700 (cond ((= (cadr elem) ?c)
701 (setq el (list 'char-to-string el)))
703 (setq el (list 'int-to-string el))))
705 (setq el (gnus-tilde-ignore-form el ignore-value)))
707 (setq el (gnus-tilde-cut-form el cut-width)))
709 (setq el (gnus-tilde-max-form el max-width)))
711 (setq el (gnus-pad-form el pad-width)))
714 (push (car elem) flist))))
715 (setq fstring (buffer-substring-no-properties (point-min) (point-max))))
717 ;; Do some postprocessing to increase efficiency.
722 ((string= fstring "")
724 ;; Not a format string.
725 ((not (string-match "%" fstring))
727 ;; A format string with just a single string spec.
728 ((string= fstring "%s")
730 ;; A single character.
731 ((string= fstring "%c")
734 ((string= fstring "%d")
737 `(insert (int-to-string ,(car flist)))
738 (list `(int-to-string ,(car flist)))))
739 ;; Just lots of chars and strings.
740 ((string-match "\\`\\(%[cs]\\)+\\'" fstring)
742 ;; A single string spec at the beginning of the spec.
743 ((string-match "\\`%[sc][^%]+\\'" fstring)
744 (list (car flist) (substring fstring 2)))
745 ;; A single string spec in the middle of the spec.
746 ((string-match "\\`\\([^%]+\\)%[sc]\\([^%]+\\)\\'" fstring)
747 (list (match-string 1 fstring) (car flist) (match-string 2 fstring)))
748 ;; A single string spec in the end of the spec.
749 ((string-match "\\`\\([^%]+\\)%[sc]\\'" fstring)
750 (list (match-string 1 fstring) (car flist)))
751 ;; Only string (and %) specs (XEmacs only!)
752 ((and (featurep 'xemacs)
753 gnus-make-format-preserve-properties
755 "\\`\\([^%]*\\(%%\\|%-?\\([1-9][0-9]*\\)?s\\)\\)*[^%]*\\'"
757 (list (cons 'gnus-xmas-format (cons fstring (nreverse flist)))))
758 ;; A more complex spec.
760 (list (cons 'format (cons fstring (nreverse flist)))))))
766 (cons 'insert result)))
767 (cond ((stringp result)
770 (cons 'concat result))
773 (defun gnus-eval-format (format &optional alist props)
774 "Eval the format variable FORMAT, using ALIST.
775 If PROPS, insert the result."
776 (let ((form (gnus-parse-format format alist props)))
778 (gnus-add-text-properties (point) (progn (eval form) (point)) props)
781 (defun gnus-compile ()
782 "Byte-compile the user-defined format specs."
785 (let ((entries gnus-format-specs)
786 (byte-compile-warnings '(unresolved callargs redefine))
789 (gnus-message 7 "Compiling format specs...")
792 (setq entry (pop entries))
793 (if (memq (car entry) '(gnus-version version))
794 (setq gnus-format-specs (delq entry gnus-format-specs))
795 (let ((form (caddr entry)))
796 (when (and (listp form)
797 ;; Under GNU Emacs, it's (byte-code ...)
798 (not (eq 'byte-code (car form)))
799 ;; Under XEmacs, it's (funcall #<compiled-function ...>)
800 (not (and (eq 'funcall (car form))
801 (byte-code-function-p (cadr form)))))
802 (defalias 'gnus-tmp-func `(lambda () ,form))
803 (byte-compile 'gnus-tmp-func)
804 (setcar (cddr entry) (gnus-byte-code 'gnus-tmp-func))))))
806 (push (cons 'version emacs-version) gnus-format-specs)
807 ;; Mark the .newsrc.eld file as "dirty".
809 (gnus-message 7 "Compiling user specs...done"))))
811 (defun gnus-set-format (type &optional insertable)
812 (set (intern (format "gnus-%s-line-format-spec" type))
814 (symbol-value (intern (format "gnus-%s-line-format" type)))
815 (symbol-value (intern (format "gnus-%s-line-format-alist" type)))
821 ;; coding: iso-8859-1
824 ;;; gnus-spec.el ends here