;;; 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
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+;; Free Software Foundation, Inc.
+
+;; Author: Per Abhiddenware
;; This file is part of GNU Emacs.
;;; Code:
-(require 'gnus)
-(require 'gnus-msg)
-(require 'gnus-ems)
(eval-when-compile (require 'cl))
-(eval-and-compile
- (autoload 'gnus-article-add-button "gnus-vis"))
+(require 'gnus)
+(require 'gnus-art)
+(require 'gnus-range)
+(require 'message) ; for message-cite-prefix-regexp
;;; 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
+(defgroup gnus-cite nil
+ "Citation."
+ :prefix "gnus-cite-"
+ :link '(custom-manual "(gnus)Article Highlighting")
+ :group 'gnus-article)
+
+(defcustom gnus-cite-reply-regexp
+ "^\\(Subject: Re\\|In-Reply-To\\|References\\):"
+ "*If headers match this regexp it is reasonable to believe that
+article has citations."
+ :group 'gnus-cite
+ :type 'string)
+
+(defcustom gnus-cite-always-check nil
+ "Check article always for citations. Set it t to check all articles."
+ :group 'gnus-cite
+ :type '(choice (const :tag "no" nil)
+ (const :tag "yes" t)))
+
+(defcustom gnus-cited-opened-text-button-line-format "%(%{[-]%}%)\n"
+ "Format of opened cited text buttons."
+ :group 'gnus-cite
+ :type 'string)
+
+(defcustom gnus-cited-closed-text-button-line-format "%(%{[+]%}%)\n"
+ "Format of closed cited text buttons."
+ :group 'gnus-cite
+ :type 'string)
+
+(defcustom gnus-cited-lines-visible nil
+ "The number of lines of hidden cited text to remain visible.
+Or a pair (cons) of numbers which are the number of lines at the top
+and bottom of the text, respectively, to remain visible."
+ :group 'gnus-cite
+ :type '(choice (const :tag "none" nil)
+ integer
+ (cons :tag "Top and Bottom" integer integer)))
+
+(defcustom 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 "\\)? *"
+Set it to nil to parse all articles."
+ :group 'gnus-cite
+ :type '(choice (const :tag "all" nil)
+ integer))
+
+(defcustom gnus-cite-max-prefix 20
+ "Maximum possible length for a citation prefix."
+ :group 'gnus-cite
+ :type 'integer)
+
+(defcustom gnus-supercite-regexp
+ (concat "^\\(" message-cite-prefix-regexp "\\)? *"
">>>>> +\"\\([^\"\n]+\\)\" +==")
- "Regexp matching normal Supercite attribution lines.
-The first grouping must match prefixes added by other packages.")
+ "*Regexp matching normal Supercite attribution lines.
+The first grouping must match prefixes added by other packages."
+ :group 'gnus-cite
+ :type 'regexp)
-(defvar gnus-supercite-secondary-regexp "^.*\"\\([^\"\n]+\\)\" +=="
+(defcustom 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]*$"
- "Regexp matching the end of an attribution line.
-The text matching the first grouping will be used as a button.")
-
-;see gnus-cus.el
-;(defvar gnus-cite-attribution-face 'underline
-; "Face used for attribution lines.
-;It is merged with the face for the cited text belonging to the attribution.")
-
-;see gnus-cus.el
-;(defvar gnus-cite-hide-percentage 50
-; "Only hide cited text if it is larger than this percent of the body.")
-
-;see gnus-cus.el
-;(defvar gnus-cite-hide-absolute 10
-; "Only hide cited text if there is at least this number of cited lines.")
-
-;see gnus-cus.el
-;(defvar gnus-face-light-name-list
-; '("light blue" "light cyan" "light yellow" "light pink"
-; "pale green" "beige" "orange" "magenta" "violet" "medium purple"
-; "turquoise")
-; "Names of light colors.")
-
-;see gnus-cus.el
-;(defvar gnus-face-dark-name-list
-; '("dark salmon" "firebrick"
-; "dark green" "dark orange" "dark khaki" "dark violet"
-; "dark turquoise")
-; "Names of dark colors.")
+The first regexp group should match the Supercite attribution."
+ :group 'gnus-cite
+ :type 'regexp)
+
+(defcustom gnus-cite-minimum-match-count 2
+ "Minimum number of identical prefixes before we believe it's a citation."
+ :group 'gnus-cite
+ :type 'integer)
+
+(defcustom gnus-cite-attribution-prefix
+ "In article\\|in <\\|On \\(Mon\\|Tue\\|Wed\\|Thu\\|Fri\\|Sat\\|Sun\\),\\|-----Original Message-----"
+ "*Regexp matching the beginning of an attribution line."
+ :group 'gnus-cite
+ :type 'regexp)
+
+(defcustom gnus-cite-attribution-suffix
+ "\\(\\(wrote\\|writes\\|said\\|says\\|>\\)\\(:\\|\\.\\.\\.\\)\\|-----Original Message-----\\)[ \t]*$"
+ "*Regexp matching the end of an attribution line.
+The text matching the first grouping will be used as a button."
+ :group 'gnus-cite
+ :type 'regexp)
+
+(defface gnus-cite-attribution-face '((t
+ (:italic t)))
+ "Face used for attribution lines.")
+
+(defcustom gnus-cite-attribution-face 'gnus-cite-attribution-face
+ "Face used for attribution lines.
+It is merged with the face for the cited text belonging to the attribution."
+ :group 'gnus-cite
+ :type 'face)
+
+(defface gnus-cite-face-1 '((((class color)
+ (background dark))
+ (:foreground "light blue"))
+ (((class color)
+ (background light))
+ (:foreground "MidnightBlue"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-2 '((((class color)
+ (background dark))
+ (:foreground "light cyan"))
+ (((class color)
+ (background light))
+ (:foreground "firebrick"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-3 '((((class color)
+ (background dark))
+ (:foreground "light yellow"))
+ (((class color)
+ (background light))
+ (:foreground "dark green"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-4 '((((class color)
+ (background dark))
+ (:foreground "light pink"))
+ (((class color)
+ (background light))
+ (:foreground "OrangeRed"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-5 '((((class color)
+ (background dark))
+ (:foreground "pale green"))
+ (((class color)
+ (background light))
+ (:foreground "dark khaki"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-6 '((((class color)
+ (background dark))
+ (:foreground "beige"))
+ (((class color)
+ (background light))
+ (:foreground "dark violet"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-7 '((((class color)
+ (background dark))
+ (:foreground "orange"))
+ (((class color)
+ (background light))
+ (:foreground "SteelBlue4"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-8 '((((class color)
+ (background dark))
+ (:foreground "magenta"))
+ (((class color)
+ (background light))
+ (:foreground "magenta"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-9 '((((class color)
+ (background dark))
+ (:foreground "violet"))
+ (((class color)
+ (background light))
+ (:foreground "violet"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-10 '((((class color)
+ (background dark))
+ (:foreground "medium purple"))
+ (((class color)
+ (background light))
+ (:foreground "medium purple"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defface gnus-cite-face-11 '((((class color)
+ (background dark))
+ (:foreground "turquoise"))
+ (((class color)
+ (background light))
+ (:foreground "turquoise"))
+ (t
+ (:italic t)))
+ "Citation face.")
+
+(defcustom gnus-cite-face-list
+ '(gnus-cite-face-1 gnus-cite-face-2 gnus-cite-face-3 gnus-cite-face-4
+ gnus-cite-face-5 gnus-cite-face-6 gnus-cite-face-7 gnus-cite-face-8
+ gnus-cite-face-9 gnus-cite-face-10 gnus-cite-face-11)
+ "*List of faces used for highlighting citations.
+
+When there are citations from multiple articles in the same message,
+Gnus will try to give each citation from each article its own face.
+This should make it easier to see who wrote what."
+ :group 'gnus-cite
+ :type '(repeat face))
+
+(defcustom gnus-cite-hide-percentage 50
+ "Only hide excess citation if above this percentage of the body."
+ :group 'gnus-cite
+ :type 'number)
+
+(defcustom gnus-cite-hide-absolute 10
+ "Only hide excess citation if above this number of lines in the body."
+ :group 'gnus-cite
+ :type 'integer)
+
+(defcustom gnus-cite-blank-line-after-header t
+ "If non-nil, put a blank line between the citation header and the button."
+ :group 'gnus-cite
+ :type 'boolean)
;;; Internal Variables:
(defvar gnus-cite-article nil)
+(defvar gnus-cite-overlay-list nil)
(defvar gnus-cite-prefix-alist nil)
-;; Alist of citation prefixes.
+;; Alist of citation prefixes.
;; The cdr is a list of lines with that prefix.
(defvar gnus-cite-attribution-alist nil)
;; 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)
+(defvar gnus-cited-opened-text-button-line-format-alist
+ `((?b (marker-position beg) ?d)
+ (?e (marker-position end) ?d)
+ (?n (count-lines beg end) ?d)
(?l (- end beg) ?d)))
-(defvar gnus-cited-text-button-line-format-spec nil)
+(defvar gnus-cited-opened-text-button-line-format-spec nil)
+(defvar gnus-cited-closed-text-button-line-format-alist
+ gnus-cited-opened-text-button-line-format-alist)
+(defvar gnus-cited-closed-text-button-line-format-spec nil)
+
;;; Commands:
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 matches `message-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)
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))
+ (goto-char (point-min))
+ (forward-line (1- number))
+ (when (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))
"Dissect the article buffer looking for cited text."
(save-excursion
(set-buffer gnus-article-buffer)
- (gnus-cite-parse-maybe)
+ (gnus-cite-parse-maybe nil t)
(let ((alist gnus-cite-prefix-alist)
prefix numbers number marks m)
;; Loop through citation prefixes.
(goto-char (point-min))
(forward-line (1- number))
(push (cons (point-marker) prefix) marks)))
- (goto-char (point-min))
- (search-forward "\n\n" nil t)
+ ;; Skip to the beginning of the body.
+ (article-goto-body)
(push (cons (point-marker) "") marks)
+ ;; Find the end of the body.
(goto-char (point-max))
- (re-search-backward gnus-signature-separator nil t)
+ (gnus-article-search-signature)
(push (cons (point-marker) "") marks)
- (setq marks (sort marks (lambda (m1 m2) (< (car m1) (car m2)))))
- (let* ((omarks marks))
+ ;; Sort the marks.
+ (setq marks (sort marks 'car-less-than-car))
+ (let ((omarks marks))
(setq marks nil)
(while (cdr omarks)
(if (= (caar omarks) (caadr omarks))
(push (car omarks) marks))
(unless (equal (cdadr omarks) "")
(push (cadr omarks) marks))
- (setq omarks (cdr omarks)))
+ (unless (and (equal (cdar omarks) "")
+ (equal (cdadr omarks) "")
+ (not (cddr omarks)))
+ (setq omarks (cdr omarks))))
(push (car omarks) marks))
(setq omarks (cdr omarks)))
(when (car omarks)
(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))
+(defun gnus-article-fill-cited-article (&optional force width)
+ "Do word wrapping in the current article.
+If WIDTH (the numerical prefix), use that text width when filling."
+ (interactive (list t current-prefix-arg))
(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))
+ (adaptive-fill-mode nil)
+ (filladapt-mode nil)
+ (fill-column (if width (prefix-numeric-value width) fill-column)))
(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-prefix
+ (if (string= (cdar marks) "") ""
+ (concat (cdar marks) " ")))
+ use-hard-newlines)
(fill-region (point-min) (point-max)))
(set-marker (caar marks) nil)
(setq marks (cdr marks)))
(when marks
- (set-marker (caar marks) nil))))))
+ (set-marker (caar marks) nil))
+ ;; All this information is now incorrect.
+ (setq gnus-cite-prefix-alist nil
+ gnus-cite-attribution-alist nil
+ gnus-cite-loose-prefix-alist nil
+ gnus-cite-loose-attribution-alist nil
+ gnus-cite-article 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)
+ (interactive (append (gnus-article-hidden-arg) (list 'force)))
+ (gnus-set-format 'cited-opened-text-button t)
+ (gnus-set-format 'cited-closed-text-button t)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
(let ((buffer-read-only nil)
- (marks (gnus-dissect-cited-text))
+ marks
(inhibit-point-motion-hooks t)
- (props (nconc (list 'gnus-type 'cite)
+ (props (nconc (list 'article-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
+ (point (point-min))
+ found beg end start)
+ (while (setq point
+ (text-property-any point (point-max)
+ 'gnus-callback
+ 'gnus-article-toggle-cited-text))
+ (setq found t)
+ (goto-char point)
+ (gnus-article-toggle-cited-text
+ (get-text-property point 'gnus-data) arg)
+ (forward-line 1)
+ (setq point (point)))
+ (unless found
+ (setq marks (gnus-dissect-cited-text))
+ (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)))
+ ;; Skip past lines we want to leave visible.
+ (when (and beg end gnus-cited-lines-visible)
+ (goto-char beg)
+ (forward-line (if (consp gnus-cited-lines-visible)
+ (car gnus-cited-lines-visible)
+ gnus-cited-lines-visible))
+ (if (>= (point) end)
+ (setq beg nil)
+ (setq beg (point-marker))
+ (when (consp gnus-cited-lines-visible)
+ (goto-char end)
+ (forward-line (- (cdr gnus-cited-lines-visible)))
+ (if (<= (point) beg)
+ (setq beg nil)
+ (setq end (point-marker))))))
+ (when (and beg end)
+ (gnus-add-wash-type 'cite)
+ ;; We use markers for the end-points to facilitate later
+ ;; wrapping and mangling of text.
+ (setq beg (set-marker (make-marker) beg)
+ end (set-marker (make-marker) end))
+ (gnus-add-text-properties-when 'article-type nil beg end props)
+ (goto-char beg)
+ (when (and gnus-cite-blank-line-after-header
+ (not (save-excursion (search-backward "\n\n" nil t))))
+ (insert "\n"))
+ (put-text-property
+ (setq start (point-marker))
+ (progn
+ (gnus-article-add-button
+ (point)
+ (progn (eval gnus-cited-closed-text-button-line-format-spec)
+ (point))
+ `gnus-article-toggle-cited-text
+ (list (cons beg end) start))
+ (point))
+ 'article-type 'annotation)
+ (set-marker beg (point))))))))
+
+(defun gnus-article-toggle-cited-text (args &optional arg)
+ "Toggle hiding the text in REGION.
+ARG can be nil or a number. Positive means hide, negative
+means show, nil means toggle."
+ (let* ((region (car args))
+ (beg (car region))
+ (end (cdr region))
+ (start (cadr args))
+ (hidden
+ (text-property-any beg (1- end) 'article-type 'cite))
+ (inhibit-point-motion-hooks t)
+ buffer-read-only)
+ (when (or (null arg)
+ (zerop arg)
+ (and (> arg 0) (not hidden))
+ (and (< arg 0) hidden))
+ (if hidden
+ (progn
+ ;; Can't remove 'cite from g-a-wash-types here because
+ ;; multiple citations may be hidden -jas
+ (gnus-remove-text-properties-when
+ 'article-type 'cite beg end
+ (cons 'article-type (cons 'cite
+ gnus-hidden-properties))))
+ (gnus-add-wash-type 'cite)
+ (gnus-add-text-properties-when
+ 'article-type nil beg end
+ (cons 'article-type (cons 'cite
+ gnus-hidden-properties))))
+ (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
+ (gnus-set-mode-line 'article))
+ (save-excursion
+ (goto-char start)
+ (gnus-delete-line)
+ (put-text-property
+ (point)
+ (progn
+ (gnus-article-add-button
+ (point)
+ (progn (eval
+ (if hidden
+ gnus-cited-opened-text-button-line-format-spec
+ gnus-cited-closed-text-button-line-format-spec))
+ (point))
+ `gnus-article-toggle-cited-text
+ args)
+ (point))
+ 'article-type 'annotation)))))
(defun gnus-article-hide-citation-maybe (&optional arg force)
"Toggle hiding of cited text that has an attribution line.
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)))
+ (interactive (append (gnus-article-hidden-arg) '(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)
+ (article-goto-body)
(let ((start (point))
(atts gnus-cite-attribution-alist)
(buffer-read-only nil)
(inhibit-point-motion-hooks t)
- (hiden 0)
+ (hidden 0)
total)
(goto-char (point-max))
- (re-search-backward gnus-signature-separator nil t)
+ (gnus-article-search-signature)
(setq total (count-lines start (point)))
(while atts
- (setq hiden (+ hiden (length (cdr (assoc (cdar atts)
- gnus-cite-prefix-alist))))
+ (setq hidden (+ hidden (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)))))))))))
+ (when (or force
+ (and (> (* 100 hidden) (* gnus-cite-hide-percentage total))
+ (> hidden gnus-cite-hide-absolute)))
+ (setq atts gnus-cite-attribution-alist)
+ (while atts
+ (setq total (cdr (assoc (cdar atts) gnus-cite-prefix-alist))
+ atts (cdr atts))
+ (while total
+ (setq hidden (car total)
+ total (cdr total))
+ (goto-char (point-min))
+ (forward-line (1- hidden))
+ (unless (assq hidden gnus-cite-attribution-alist)
+ (gnus-add-text-properties
+ (point) (progn (forward-line 1) (point))
+ (nconc (list 'article-type 'cite)
+ gnus-hidden-properties))))))))))
(defun gnus-article-hide-citation-in-followups ()
"Hide cited text in non-root articles."
;;; 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)
+(defun gnus-cite-parse-maybe (&optional force no-overlay)
+ "Always parse the buffer."
+ (gnus-cite-localize)
+ ;;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)
+ (unless no-overlay
+ (gnus-cite-delete-overlays))
+ ;; Parse if not too large.
+ (if (and gnus-cite-parse-max-size
+ (> (buffer-size) gnus-cite-parse-max-size))
()
- ;;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))))
+ (setq gnus-cite-article (cons (car gnus-article-current)
+ (cdr gnus-article-current)))
+ (gnus-cite-parse-wrapper)))
+
+(defun gnus-cite-delete-overlays ()
+ (dolist (overlay gnus-cite-overlay-list)
+ (ignore-errors
+ (when (or (not (gnus-overlay-end overlay))
+ (and (>= (gnus-overlay-end overlay) (point-min))
+ (<= (gnus-overlay-end overlay) (point-max))))
+ (setq gnus-cite-overlay-list (delete overlay gnus-cite-overlay-list))
+ (ignore-errors
+ (gnus-delete-overlay overlay))))))
+
+(defun gnus-cite-parse-wrapper ()
+ ;; Wrap chopped gnus-cite-parse.
+ (article-goto-body)
+ (let ((inhibit-point-motion-hooks t))
+ (save-excursion
+ (gnus-cite-parse-attributions))
+ (save-excursion
+ (gnus-cite-parse))
+ (save-excursion
+ (gnus-cite-connect-attributions))))
(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)
+ (gnus-article-search-signature)
(point)))
- alist entry start begin end numbers prefix)
+ (prefix-regexp (concat "^\\(" message-cite-prefix-regexp "\\)"))
+ alist entry start begin end numbers prefix guess-limit)
;; Get all potential prefixes in `alist'.
(while (< (point) max)
;; Each line.
(setq begin (point)
+ guess-limit (progn (skip-chars-forward "^> \t\r\n") (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))))
+ (when (and (< guess-limit (+ begin gnus-cite-max-prefix))
+ (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)
+ (when (> end (+ begin gnus-cite-max-prefix))
+ (setq end (+ begin gnus-cite-max-prefix)))
+ (while (re-search-forward 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
+ (if entry
(setcdr entry (cons line (cdr entry)))
- (setq alist (cons (list prefix line) alist)))
+ (push (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.
+ ;; times. First sort them by length. Longer is older.
(setq alist (sort alist (lambda (a b)
(> (length (car a)) (length (car b))))))
(while alist
;; 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)))
+ ;; prefixes.
+ (push entry gnus-cite-prefix-alist))
(t
- (setq gnus-cite-prefix-alist (cons entry
- gnus-cite-prefix-alist))
+ (push 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))))))))
+ (setcdr current
+ (gnus-set-difference (cdr current) numbers)))))))))
+
+(defun gnus-cite-parse-attributions ()
+ (let (al-alist)
+ ;; Parse attributions
+ (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)
+ (when (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)))))))
+ (when (eq wrote in)
+ (setq in nil))
+ (goto-char end)
+ ;; don't add duplicates
+ (let ((al (buffer-substring (save-excursion (beginning-of-line 0)
+ (1+ (point)))
+ end)))
+ (if (not (assoc al al-alist))
+ (progn
+ (push (list wrote in prefix tag)
+ gnus-cite-loose-attribution-alist)
+ (push (cons al t) al-alist))))))))
+
+(defun gnus-cite-connect-attributions ()
+ ;; Connect attributions to citations
+
;; 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) ">"))))
+ (when 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)
- "\\>"))))
+ (when 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)
- "\\>"))))
+ (when tag
+ (concat "\\<"
+ (regexp-quote tag)
+ "\\>"))))
;; Find nested citations after attributions.
(gnus-cite-match-attributions 'small-if-unique t
(lambda (prefix tag)
(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)))))
+ (when (< (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?).
;; 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.
- ;;
+ ;; considered.
+ ;;
;; WROTE is the attribution line number.
;; PREFIX is the attribution line prefix.
;; TAG is the Supercite tag on the attribution line.
((eq sort 'first) nil)
(t (< (length (gnus-cite-find-loose prefix)) 2)))
limit (if after wrote -1)
- smallest 1000000
+ smallest 1000000
best nil)
(let ((cites gnus-cite-loose-prefix-alist)
cite candidate numbers first compare)
()
(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)))))))))))
+ (push (cons wrote (car best)) gnus-cite-attribution-alist)
+ (when in
+ (push (cons in (car best)) gnus-cite-attribution-alist))
+ (when (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))
+ (when (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.
(setq att (car atts)
line (car att)
atts (cdr atts))
- (if (string-equal (gnus-cite-find-prefix line) prefix)
- (setq lines (cons line lines))))
+ (when (string-equal (gnus-cite-find-prefix line) prefix)
+ (push 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.
+ from to overlay)
+ (goto-char (point-min))
+ (when (zerop (forward-line (1- number)))
(forward-char (length prefix))
(skip-chars-forward " \t")
(setq from (point))
(skip-chars-backward " \t")
(setq to (point))
(when (< from to)
- (gnus-overlay-put (gnus-make-overlay from to) 'face face))))))
+ (push (setq overlay (gnus-make-overlay from to))
+ gnus-cite-overlay-list)
+ (gnus-overlay-put overlay 'face face))))))
(defun gnus-cite-toggle (prefix)
(save-excursion
(set-buffer gnus-article-buffer)
+ (gnus-cite-parse-maybe nil t)
(let ((buffer-read-only nil)
(numbers (cdr (assoc prefix gnus-cite-prefix-alist)))
(inhibit-point-motion-hooks t)
(while numbers
(setq number (car numbers)
numbers (cdr numbers))
- (goto-line number)
+ (goto-char (point-min))
+ (forward-line (1- number))
(cond ((get-text-property (point) 'invisible)
+ ;; Can't remove 'cite from g-a-wash-types here because
+ ;; multiple citations may be hidden -jas
(remove-text-properties (point) (progn (forward-line 1) (point))
gnus-hidden-properties))
((assq number gnus-cite-attribution-alist))
(t
- (gnus-add-text-properties
+ (gnus-add-wash-type 'cite)
+ (gnus-add-text-properties
(point) (progn (forward-line 1) (point))
- (nconc (list 'gnus-type 'cite)
- gnus-hidden-properties))))))))
+ (nconc (list 'article-type 'cite)
+ gnus-hidden-properties))))
+ (let ((gnus-article-mime-handle-alist-1
+ gnus-article-mime-handle-alist))
+ (gnus-set-mode-line 'article))))))
(defun gnus-cite-find-prefix (line)
;; Return citation prefix for LINE.
(while alist
(setq entry (car alist)
alist (cdr alist))
- (if (memq line (cdr entry))
- (setq prefix (car entry))))
+ (when (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))
+(defun gnus-cite-localize ()
+ "Make the citation variables local to the article buffer."
+ (let ((vars '(gnus-cite-article
+ gnus-cite-overlay-list gnus-cite-prefix-alist
+ gnus-cite-attribution-alist gnus-cite-loose-prefix-alist
+ gnus-cite-loose-attribution-alist)))
+ (while vars
+ (make-local-variable (pop vars)))))
(gnus-ems-redefine)
(provide 'gnus-cite)
+;; Local Variables:
+;; coding: iso-8859-1
+;; End:
+
;;; gnus-cite.el ends here
projects / gnus / blobdiff