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diff --git a/lisp/gnus-cite.el b/lisp/gnus-cite.el deleted file mode 100644 index bc85ea42be0..00000000000 --- a/lisp/gnus-cite.el +++ /dev/null @@ -1,732 +0,0 @@ -;;; gnus-cite.el --- parse citations in articles for Gnus -;; Copyright (C) 1995,96 Free Software Foundation, Inc. - -;; Author: Per Abrahamsen <abraham@iesd.auc.dk> -;; Keywords: news, mail - -;; This file is part of GNU Emacs. - -;; GNU Emacs 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. - -;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the -;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, -;; Boston, MA 02111-1307, USA. - -;;; Commentary: - -;;; Code: - -(require 'gnus) -(require 'gnus-msg) -(require 'gnus-ems) -(eval-when-compile (require 'cl)) - -(eval-and-compile - (autoload 'gnus-article-add-button "gnus-vis")) - -;;; Customization: - -(defvar gnus-cited-text-button-line-format "%(%{[...]%}%)\n" - "Format of cited text buttons.") - -(defvar gnus-cited-lines-visible nil - "The number of lines of hidden cited text to remain visible.") - -(defvar gnus-cite-parse-max-size 25000 - "Maximum article size (in bytes) where parsing citations is allowed. -Set it to nil to parse all articles.") - -(defvar gnus-cite-prefix-regexp - "^[]>|:}+ ]*[]>|:}+]\\(.*>\\)?\\|^.*>" - "Regexp matching the longest possible citation prefix on a line.") - -(defvar gnus-cite-max-prefix 20 - "Maximum possible length for a citation prefix.") - -(defvar gnus-supercite-regexp - (concat "^\\(" gnus-cite-prefix-regexp "\\)? *" - ">>>>> +\"\\([^\"\n]+\\)\" +==") - "Regexp matching normal Supercite attribution lines. -The first grouping must match prefixes added by other packages.") - -(defvar gnus-supercite-secondary-regexp "^.*\"\\([^\"\n]+\\)\" +==" - "Regexp matching mangled Supercite attribution lines. -The first regexp group should match the Supercite attribution.") - -(defvar gnus-cite-minimum-match-count 2 - "Minimum number of identical prefixes before we believe it's a citation.") - -;see gnus-cus.el -;(defvar gnus-cite-face-list -; (if (eq gnus-display-type 'color) -; (if (eq gnus-background-mode 'dark) 'light 'dark) -; '(italic)) -; "Faces used for displaying different citations. -;It is either a list of face names, or one of the following special -;values: - -;dark: Create faces from `gnus-face-dark-name-list'. -;light: Create faces from `gnus-face-light-name-list'. - -;The variable `gnus-make-foreground' determines whether the created -;faces change the foreground or the background colors.") - -(defvar gnus-cite-attribution-prefix "in article\\|in <" - "Regexp matching the beginning of an attribution line.") - -(defvar gnus-cite-attribution-suffix - "\\(wrote\\|writes\\|said\\|says\\):[ \t]*$" - "Regexp matching the end of an attribution line. -The text matching the first grouping will be used as a button.") - -;see gnus-cus.el -;(defvar gnus-cite-attribution-face 'underline -; "Face used for attribution lines. -;It is merged with the face for the cited text belonging to the attribution.") - -;see gnus-cus.el -;(defvar gnus-cite-hide-percentage 50 -; "Only hide cited text if it is larger than this percent of the body.") - -;see gnus-cus.el -;(defvar gnus-cite-hide-absolute 10 -; "Only hide cited text if there is at least this number of cited lines.") - -;see gnus-cus.el -;(defvar gnus-face-light-name-list -; '("light blue" "light cyan" "light yellow" "light pink" -; "pale green" "beige" "orange" "magenta" "violet" "medium purple" -; "turquoise") -; "Names of light colors.") - -;see gnus-cus.el -;(defvar gnus-face-dark-name-list -; '("dark salmon" "firebrick" -; "dark green" "dark orange" "dark khaki" "dark violet" -; "dark turquoise") -; "Names of dark colors.") - -;;; Internal Variables: - -(defvar gnus-cite-article nil) - -(defvar gnus-cite-prefix-alist nil) -;; Alist of citation prefixes. -;; The cdr is a list of lines with that prefix. - -(defvar gnus-cite-attribution-alist nil) -;; Alist of attribution lines. -;; The car is a line number. -;; The cdr is the prefix for the citation started by that line. - -(defvar gnus-cite-loose-prefix-alist nil) -;; Alist of citation prefixes that have no matching attribution. -;; The cdr is a list of lines with that prefix. - -(defvar gnus-cite-loose-attribution-alist nil) -;; Alist of attribution lines that have no matching citation. -;; Each member has the form (WROTE IN PREFIX TAG), where -;; WROTE: is the attribution line number -;; IN: is the line number of the previous line if part of the same attribution, -;; PREFIX: Is the citation prefix of the attribution line(s), and -;; TAG: Is a Supercite tag, if any. - -(defvar gnus-cited-text-button-line-format-alist - `((?b beg ?d) - (?e end ?d) - (?l (- end beg) ?d))) -(defvar gnus-cited-text-button-line-format-spec nil) - -;;; Commands: - -(defun gnus-article-highlight-citation (&optional force) - "Highlight cited text. -Each citation in the article will be highlighted with a different face. -The faces are taken from `gnus-cite-face-list'. -Attribution lines are highlighted with the same face as the -corresponding citation merged with `gnus-cite-attribution-face'. - -Text is considered cited if at least `gnus-cite-minimum-match-count' -lines matches `gnus-cite-prefix-regexp' with the same prefix. - -Lines matching `gnus-cite-attribution-suffix' and perhaps -`gnus-cite-attribution-prefix' are considered attribution lines." - (interactive (list 'force)) - ;; Create dark or light faces if necessary. - (cond ((eq gnus-cite-face-list 'light) - (setq gnus-cite-face-list - (mapcar 'gnus-make-face gnus-face-light-name-list))) - ((eq gnus-cite-face-list 'dark) - (setq gnus-cite-face-list - (mapcar 'gnus-make-face gnus-face-dark-name-list)))) - (save-excursion - (set-buffer gnus-article-buffer) - (gnus-cite-parse-maybe force) - (let ((buffer-read-only nil) - (alist gnus-cite-prefix-alist) - (faces gnus-cite-face-list) - (inhibit-point-motion-hooks t) - face entry prefix skip numbers number face-alist) - ;; Loop through citation prefixes. - (while alist - (setq entry (car alist) - alist (cdr alist) - prefix (car entry) - numbers (cdr entry) - face (car faces) - faces (or (cdr faces) gnus-cite-face-list) - face-alist (cons (cons prefix face) face-alist)) - (while numbers - (setq number (car numbers) - numbers (cdr numbers)) - (and (not (assq number gnus-cite-attribution-alist)) - (not (assq number gnus-cite-loose-attribution-alist)) - (gnus-cite-add-face number prefix face)))) - ;; Loop through attribution lines. - (setq alist gnus-cite-attribution-alist) - (while alist - (setq entry (car alist) - alist (cdr alist) - number (car entry) - prefix (cdr entry) - skip (gnus-cite-find-prefix number) - face (cdr (assoc prefix face-alist))) - ;; Add attribution button. - (goto-line number) - (if (re-search-forward gnus-cite-attribution-suffix - (save-excursion (end-of-line 1) (point)) - t) - (gnus-article-add-button (match-beginning 1) (match-end 1) - 'gnus-cite-toggle prefix)) - ;; Highlight attribution line. - (gnus-cite-add-face number skip face) - (gnus-cite-add-face number skip gnus-cite-attribution-face)) - ;; Loop through attribution lines. - (setq alist gnus-cite-loose-attribution-alist) - (while alist - (setq entry (car alist) - alist (cdr alist) - number (car entry) - skip (gnus-cite-find-prefix number)) - (gnus-cite-add-face number skip gnus-cite-attribution-face))))) - -(defun gnus-dissect-cited-text () - "Dissect the article buffer looking for cited text." - (save-excursion - (set-buffer gnus-article-buffer) - (gnus-cite-parse-maybe) - (let ((alist gnus-cite-prefix-alist) - prefix numbers number marks m) - ;; Loop through citation prefixes. - (while alist - (setq numbers (pop alist) - prefix (pop numbers)) - (while numbers - (setq number (pop numbers)) - (goto-char (point-min)) - (forward-line number) - (push (cons (point-marker) "") marks) - (while (and numbers - (= (1- number) (car numbers))) - (setq number (pop numbers))) - (goto-char (point-min)) - (forward-line (1- number)) - (push (cons (point-marker) prefix) marks))) - (goto-char (point-min)) - (search-forward "\n\n" nil t) - (push (cons (point-marker) "") marks) - (goto-char (point-max)) - (re-search-backward gnus-signature-separator nil t) - (push (cons (point-marker) "") marks) - (setq marks (sort marks (lambda (m1 m2) (< (car m1) (car m2))))) - (let* ((omarks marks)) - (setq marks nil) - (while (cdr omarks) - (if (= (caar omarks) (caadr omarks)) - (progn - (unless (equal (cdar omarks) "") - (push (car omarks) marks)) - (unless (equal (cdadr omarks) "") - (push (cadr omarks) marks)) - (setq omarks (cdr omarks))) - (push (car omarks) marks)) - (setq omarks (cdr omarks))) - (when (car omarks) - (push (car omarks) marks)) - (setq marks (setq m (nreverse marks))) - (while (cddr m) - (if (and (equal (cdadr m) "") - (equal (cdar m) (cdaddr m)) - (goto-char (caadr m)) - (forward-line 1) - (= (point) (caaddr m))) - (setcdr m (cdddr m)) - (setq m (cdr m)))) - marks)))) - - -(defun gnus-article-fill-cited-article (&optional force) - "Do word wrapping in the current article." - (interactive (list t)) - (save-excursion - (set-buffer gnus-article-buffer) - (let ((buffer-read-only nil) - (inhibit-point-motion-hooks t) - (marks (gnus-dissect-cited-text)) - (adaptive-fill-mode nil)) - (save-restriction - (while (cdr marks) - (widen) - (narrow-to-region (caar marks) (caadr marks)) - (let ((adaptive-fill-regexp - (concat "^" (regexp-quote (cdar marks)) " *")) - (fill-prefix (cdar marks))) - (fill-region (point-min) (point-max))) - (set-marker (caar marks) nil) - (setq marks (cdr marks))) - (when marks - (set-marker (caar marks) nil)))))) - -(defun gnus-article-hide-citation (&optional arg force) - "Toggle hiding of all cited text except attribution lines. -See the documentation for `gnus-article-highlight-citation'. -If given a negative prefix, always show; if given a positive prefix, -always hide." - (interactive (append (gnus-hidden-arg) (list 'force))) - (setq gnus-cited-text-button-line-format-spec - (gnus-parse-format gnus-cited-text-button-line-format - gnus-cited-text-button-line-format-alist t)) - (unless (gnus-article-check-hidden-text 'cite arg) - (save-excursion - (set-buffer gnus-article-buffer) - (let ((buffer-read-only nil) - (marks (gnus-dissect-cited-text)) - (inhibit-point-motion-hooks t) - (props (nconc (list 'gnus-type 'cite) - gnus-hidden-properties)) - beg end) - (while marks - (setq beg nil - end nil) - (while (and marks (string= (cdar marks) "")) - (setq marks (cdr marks))) - (when marks - (setq beg (caar marks))) - (while (and marks (not (string= (cdar marks) ""))) - (setq marks (cdr marks))) - (when marks - (setq end (caar marks))) - ;; Skip past lines we want to leave visible. - (when (and beg end gnus-cited-lines-visible) - (goto-char beg) - (forward-line gnus-cited-lines-visible) - (if (>= (point) end) - (setq beg nil) - (setq beg (point-marker)))) - (when (and beg end) - (gnus-add-text-properties beg end props) - (goto-char beg) - (unless (save-excursion (search-backward "\n\n" nil t)) - (insert "\n")) - (gnus-article-add-button - (point) - (progn (eval gnus-cited-text-button-line-format-spec) (point)) - `gnus-article-toggle-cited-text (cons beg end)) - (set-marker beg (point)))))))) - -(defun gnus-article-toggle-cited-text (region) - "Toggle hiding the text in REGION." - (let (buffer-read-only) - (funcall - (if (text-property-any - (car region) (1- (cdr region)) - (car gnus-hidden-properties) (cadr gnus-hidden-properties)) - 'remove-text-properties 'gnus-add-text-properties) - (car region) (cdr region) gnus-hidden-properties))) - -(defun gnus-article-hide-citation-maybe (&optional arg force) - "Toggle hiding of cited text that has an attribution line. -If given a negative prefix, always show; if given a positive prefix, -always hide. -This will do nothing unless at least `gnus-cite-hide-percentage' -percent and at least `gnus-cite-hide-absolute' lines of the body is -cited text with attributions. When called interactively, these two -variables are ignored. -See also the documentation for `gnus-article-highlight-citation'." - (interactive (append (gnus-hidden-arg) (list 'force))) - (unless (gnus-article-check-hidden-text 'cite arg) - (save-excursion - (set-buffer gnus-article-buffer) - (gnus-cite-parse-maybe force) - (goto-char (point-min)) - (search-forward "\n\n" nil t) - (let ((start (point)) - (atts gnus-cite-attribution-alist) - (buffer-read-only nil) - (inhibit-point-motion-hooks t) - (hiden 0) - total) - (goto-char (point-max)) - (re-search-backward gnus-signature-separator nil t) - (setq total (count-lines start (point))) - (while atts - (setq hiden (+ hiden (length (cdr (assoc (cdar atts) - gnus-cite-prefix-alist)))) - atts (cdr atts))) - (if (or force - (and (> (* 100 hiden) (* gnus-cite-hide-percentage total)) - (> hiden gnus-cite-hide-absolute))) - (progn - (setq atts gnus-cite-attribution-alist) - (while atts - (setq total (cdr (assoc (cdar atts) gnus-cite-prefix-alist)) - atts (cdr atts)) - (while total - (setq hiden (car total) - total (cdr total)) - (goto-line hiden) - (or (assq hiden gnus-cite-attribution-alist) - (gnus-add-text-properties - (point) (progn (forward-line 1) (point)) - (nconc (list 'gnus-type 'cite) - gnus-hidden-properties))))))))))) - -(defun gnus-article-hide-citation-in-followups () - "Hide cited text in non-root articles." - (interactive) - (save-excursion - (set-buffer gnus-article-buffer) - (let ((article (cdr gnus-article-current))) - (unless (save-excursion - (set-buffer gnus-summary-buffer) - (gnus-article-displayed-root-p article)) - (gnus-article-hide-citation))))) - -;;; Internal functions: - -(defun gnus-cite-parse-maybe (&optional force) - ;; Parse if the buffer has changes since last time. - (if (equal gnus-cite-article gnus-article-current) - () - ;;Reset parser information. - (setq gnus-cite-prefix-alist nil - gnus-cite-attribution-alist nil - gnus-cite-loose-prefix-alist nil - gnus-cite-loose-attribution-alist nil) - ;; Parse if not too large. - (if (and (not force) - gnus-cite-parse-max-size - (> (buffer-size) gnus-cite-parse-max-size)) - () - (setq gnus-cite-article (cons (car gnus-article-current) - (cdr gnus-article-current))) - (gnus-cite-parse)))) - -(defun gnus-cite-parse () - ;; Parse and connect citation prefixes and attribution lines. - - ;; Parse current buffer searching for citation prefixes. - (goto-char (point-min)) - (or (search-forward "\n\n" nil t) - (goto-char (point-max))) - (let ((line (1+ (count-lines (point-min) (point)))) - (case-fold-search t) - (max (save-excursion - (goto-char (point-max)) - (re-search-backward gnus-signature-separator nil t) - (point))) - alist entry start begin end numbers prefix) - ;; Get all potential prefixes in `alist'. - (while (< (point) max) - ;; Each line. - (setq begin (point) - end (progn (beginning-of-line 2) (point)) - start end) - (goto-char begin) - ;; Ignore standard Supercite attribution prefix. - (if (looking-at gnus-supercite-regexp) - (if (match-end 1) - (setq end (1+ (match-end 1))) - (setq end (1+ begin)))) - ;; Ignore very long prefixes. - (if (> end (+ (point) gnus-cite-max-prefix)) - (setq end (+ (point) gnus-cite-max-prefix))) - (while (re-search-forward gnus-cite-prefix-regexp (1- end) t) - ;; Each prefix. - (setq end (match-end 0) - prefix (buffer-substring begin end)) - (gnus-set-text-properties 0 (length prefix) nil prefix) - (setq entry (assoc prefix alist)) - (if entry - (setcdr entry (cons line (cdr entry))) - (setq alist (cons (list prefix line) alist))) - (goto-char begin)) - (goto-char start) - (setq line (1+ line))) - ;; We got all the potential prefixes. Now create - ;; `gnus-cite-prefix-alist' containing the oldest prefix for each - ;; line that appears at least gnus-cite-minimum-match-count - ;; times. First sort them by length. Longer is older. - (setq alist (sort alist (lambda (a b) - (> (length (car a)) (length (car b)))))) - (while alist - (setq entry (car alist) - prefix (car entry) - numbers (cdr entry) - alist (cdr alist)) - (cond ((null numbers) - ;; No lines with this prefix that wasn't also part of - ;; a longer prefix. - ) - ((< (length numbers) gnus-cite-minimum-match-count) - ;; Too few lines with this prefix. We keep it a bit - ;; longer in case it is an exact match for an attribution - ;; line, but we don't remove the line from other - ;; prefixes. - (setq gnus-cite-prefix-alist - (cons entry gnus-cite-prefix-alist))) - (t - (setq gnus-cite-prefix-alist (cons entry - gnus-cite-prefix-alist)) - ;; Remove articles from other prefixes. - (let ((loop alist) - current) - (while loop - (setq current (car loop) - loop (cdr loop)) - (setcdr current - (gnus-set-difference (cdr current) numbers)))))))) - ;; No citations have been connected to attribution lines yet. - (setq gnus-cite-loose-prefix-alist (append gnus-cite-prefix-alist nil)) - - ;; Parse current buffer searching for attribution lines. - (goto-char (point-min)) - (search-forward "\n\n" nil t) - (while (re-search-forward gnus-cite-attribution-suffix (point-max) t) - (let* ((start (match-beginning 0)) - (end (match-end 0)) - (wrote (count-lines (point-min) end)) - (prefix (gnus-cite-find-prefix wrote)) - ;; Check previous line for an attribution leader. - (tag (progn - (beginning-of-line 1) - (and (looking-at gnus-supercite-secondary-regexp) - (buffer-substring (match-beginning 1) - (match-end 1))))) - (in (progn - (goto-char start) - (and (re-search-backward gnus-cite-attribution-prefix - (save-excursion - (beginning-of-line 0) - (point)) - t) - (not (re-search-forward gnus-cite-attribution-suffix - start t)) - (count-lines (point-min) (1+ (point))))))) - (if (eq wrote in) - (setq in nil)) - (goto-char end) - (setq gnus-cite-loose-attribution-alist - (cons (list wrote in prefix tag) - gnus-cite-loose-attribution-alist)))) - ;; Find exact supercite citations. - (gnus-cite-match-attributions 'small nil - (lambda (prefix tag) - (if tag - (concat "\\`" - (regexp-quote prefix) "[ \t]*" - (regexp-quote tag) ">")))) - ;; Find loose supercite citations after attributions. - (gnus-cite-match-attributions 'small t - (lambda (prefix tag) - (if tag (concat "\\<" - (regexp-quote tag) - "\\>")))) - ;; Find loose supercite citations anywhere. - (gnus-cite-match-attributions 'small nil - (lambda (prefix tag) - (if tag (concat "\\<" - (regexp-quote tag) - "\\>")))) - ;; Find nested citations after attributions. - (gnus-cite-match-attributions 'small-if-unique t - (lambda (prefix tag) - (concat "\\`" (regexp-quote prefix) ".+"))) - ;; Find nested citations anywhere. - (gnus-cite-match-attributions 'small nil - (lambda (prefix tag) - (concat "\\`" (regexp-quote prefix) ".+"))) - ;; Remove loose prefixes with too few lines. - (let ((alist gnus-cite-loose-prefix-alist) - entry) - (while alist - (setq entry (car alist) - alist (cdr alist)) - (if (< (length (cdr entry)) gnus-cite-minimum-match-count) - (setq gnus-cite-prefix-alist - (delq entry gnus-cite-prefix-alist) - gnus-cite-loose-prefix-alist - (delq entry gnus-cite-loose-prefix-alist))))) - ;; Find flat attributions. - (gnus-cite-match-attributions 'first t nil) - ;; Find any attributions (are we getting desperate yet?). - (gnus-cite-match-attributions 'first nil nil)) - -(defun gnus-cite-match-attributions (sort after fun) - ;; Match all loose attributions and citations (SORT AFTER FUN) . - ;; - ;; If SORT is `small', the citation with the shortest prefix will be - ;; used, if it is `first' the first prefix will be used, if it is - ;; `small-if-unique' the shortest prefix will be used if the - ;; attribution line does not share its own prefix with other - ;; loose attribution lines, otherwise the first prefix will be used. - ;; - ;; If AFTER is non-nil, only citations after the attribution line - ;; will be considered. - ;; - ;; If FUN is non-nil, it will be called with the arguments (WROTE - ;; PREFIX TAG) and expected to return a regular expression. Only - ;; citations whose prefix matches the regular expression will be - ;; considered. - ;; - ;; WROTE is the attribution line number. - ;; PREFIX is the attribution line prefix. - ;; TAG is the Supercite tag on the attribution line. - (let ((atts gnus-cite-loose-attribution-alist) - (case-fold-search t) - att wrote in prefix tag regexp limit smallest best size) - (while atts - (setq att (car atts) - atts (cdr atts) - wrote (nth 0 att) - in (nth 1 att) - prefix (nth 2 att) - tag (nth 3 att) - regexp (if fun (funcall fun prefix tag) "") - size (cond ((eq sort 'small) t) - ((eq sort 'first) nil) - (t (< (length (gnus-cite-find-loose prefix)) 2))) - limit (if after wrote -1) - smallest 1000000 - best nil) - (let ((cites gnus-cite-loose-prefix-alist) - cite candidate numbers first compare) - (while cites - (setq cite (car cites) - cites (cdr cites) - candidate (car cite) - numbers (cdr cite) - first (apply 'min numbers) - compare (if size (length candidate) first)) - (and (> first limit) - regexp - (string-match regexp candidate) - (< compare smallest) - (setq best cite - smallest compare)))) - (if (null best) - () - (setq gnus-cite-loose-attribution-alist - (delq att gnus-cite-loose-attribution-alist)) - (setq gnus-cite-attribution-alist - (cons (cons wrote (car best)) gnus-cite-attribution-alist)) - (if in - (setq gnus-cite-attribution-alist - (cons (cons in (car best)) gnus-cite-attribution-alist))) - (if (memq best gnus-cite-loose-prefix-alist) - (let ((loop gnus-cite-prefix-alist) - (numbers (cdr best)) - current) - (setq gnus-cite-loose-prefix-alist - (delq best gnus-cite-loose-prefix-alist)) - (while loop - (setq current (car loop) - loop (cdr loop)) - (if (eq current best) - () - (setcdr current (gnus-set-difference (cdr current) numbers)) - (if (null (cdr current)) - (setq gnus-cite-loose-prefix-alist - (delq current gnus-cite-loose-prefix-alist) - atts (delq current atts))))))))))) - -(defun gnus-cite-find-loose (prefix) - ;; Return a list of loose attribution lines prefixed by PREFIX. - (let* ((atts gnus-cite-loose-attribution-alist) - att line lines) - (while atts - (setq att (car atts) - line (car att) - atts (cdr atts)) - (if (string-equal (gnus-cite-find-prefix line) prefix) - (setq lines (cons line lines)))) - lines)) - -(defun gnus-cite-add-face (number prefix face) - ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line. - (when face - (let ((inhibit-point-motion-hooks t) - from to) - (goto-line number) - (unless (eobp) ;; Sometimes things become confused. - (forward-char (length prefix)) - (skip-chars-forward " \t") - (setq from (point)) - (end-of-line 1) - (skip-chars-backward " \t") - (setq to (point)) - (when (< from to) - (gnus-overlay-put (gnus-make-overlay from to) 'face face)))))) - -(defun gnus-cite-toggle (prefix) - (save-excursion - (set-buffer gnus-article-buffer) - (let ((buffer-read-only nil) - (numbers (cdr (assoc prefix gnus-cite-prefix-alist))) - (inhibit-point-motion-hooks t) - number) - (while numbers - (setq number (car numbers) - numbers (cdr numbers)) - (goto-line number) - (cond ((get-text-property (point) 'invisible) - (remove-text-properties (point) (progn (forward-line 1) (point)) - gnus-hidden-properties)) - ((assq number gnus-cite-attribution-alist)) - (t - (gnus-add-text-properties - (point) (progn (forward-line 1) (point)) - (nconc (list 'gnus-type 'cite) - gnus-hidden-properties)))))))) - -(defun gnus-cite-find-prefix (line) - ;; Return citation prefix for LINE. - (let ((alist gnus-cite-prefix-alist) - (prefix "") - entry) - (while alist - (setq entry (car alist) - alist (cdr alist)) - (if (memq line (cdr entry)) - (setq prefix (car entry)))) - prefix)) - -(gnus-add-shutdown 'gnus-cache-close 'gnus) - -(defun gnus-cache-close () - (setq gnus-cite-prefix-alist nil)) - -(gnus-ems-redefine) - -(provide 'gnus-cite) - -;;; gnus-cite.el ends here |