;;; gnus-cite.el --- parse citations in articles for Gnus
-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-;; 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 1995-2012 Free Software Foundation, Inc.
;; Author: Per Abhiddenware
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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.
+;; the Free Software Foundation, either version 3 of the License, 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
;; 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., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-attribution-face 'face-alias 'gnus-cite-attribution)
+(put 'gnus-cite-attribution-face 'obsolete-face "22.1")
(defcustom gnus-cite-attribution-face 'gnus-cite-attribution
"Face used for attribution lines.
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-1 'face-alias 'gnus-cite-1)
+(put 'gnus-cite-face-1 'obsolete-face "22.1")
(defface gnus-cite-2 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-2 'face-alias 'gnus-cite-2)
+(put 'gnus-cite-face-2 'obsolete-face "22.1")
(defface gnus-cite-3 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-3 'face-alias 'gnus-cite-3)
+(put 'gnus-cite-face-3 'obsolete-face "22.1")
(defface gnus-cite-4 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-4 'face-alias 'gnus-cite-4)
+(put 'gnus-cite-face-4 'obsolete-face "22.1")
(defface gnus-cite-5 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-5 'face-alias 'gnus-cite-5)
+(put 'gnus-cite-face-5 'obsolete-face "22.1")
(defface gnus-cite-6 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-6 'face-alias 'gnus-cite-6)
+(put 'gnus-cite-face-6 'obsolete-face "22.1")
(defface gnus-cite-7 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-7 'face-alias 'gnus-cite-7)
+(put 'gnus-cite-face-7 'obsolete-face "22.1")
(defface gnus-cite-8 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-8 'face-alias 'gnus-cite-8)
+(put 'gnus-cite-face-8 'obsolete-face "22.1")
(defface gnus-cite-9 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-9 'face-alias 'gnus-cite-9)
+(put 'gnus-cite-face-9 'obsolete-face "22.1")
(defface gnus-cite-10 '((((class color)
(background dark))
- (:foreground "medium purple"))
+ (:foreground "plum1"))
(((class color)
(background light))
(:foreground "medium purple"))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-10 'face-alias 'gnus-cite-10)
+(put 'gnus-cite-face-10 'obsolete-face "22.1")
(defface gnus-cite-11 '((((class color)
(background dark))
:group 'gnus-cite)
;; backward-compatibility alias
(put 'gnus-cite-face-11 'face-alias 'gnus-cite-11)
+(put 'gnus-cite-face-11 'obsolete-face "22.1")
(defcustom gnus-cite-face-list
'(gnus-cite-1 gnus-cite-2 gnus-cite-3 gnus-cite-4 gnus-cite-5 gnus-cite-6
Lines matching `gnus-cite-attribution-suffix' and perhaps
`gnus-cite-attribution-prefix' are considered attribution lines."
(interactive (list 'force))
- (save-excursion
- (unless same-buffer
- (set-buffer gnus-article-buffer))
+ (with-current-buffer (if same-buffer (current-buffer) gnus-article-buffer)
(gnus-cite-parse-maybe force)
(let ((buffer-read-only nil)
(alist gnus-cite-prefix-alist)
(defun gnus-dissect-cited-text ()
"Dissect the article buffer looking for cited text."
- (save-excursion
- (set-buffer gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
(gnus-cite-parse-maybe nil t)
(let ((alist gnus-cite-prefix-alist)
prefix numbers number marks m)
(if (and (equal (cdadr m) "")
(equal (cdar m) (cdaddr m))
(goto-char (caadr m))
+ (looking-at "[ \t]*$")
(forward-line 1)
(= (point) (caaddr m)))
(setcdr m (cdddr m))
(setq m (cdr m))))
marks))))
-(defun gnus-article-fill-cited-article (&optional force width)
+(defun gnus-article-fill-cited-long-lines ()
+ (gnus-article-fill-cited-article nil t))
+
+(defun gnus-article-fill-cited-article (&optional width long-lines)
"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)
+If WIDTH (the numerical prefix), use that text width when
+filling. If LONG-LINES, only fill sections that have lines
+longer than the frame width."
+ (interactive "P")
+ (with-current-buffer gnus-article-buffer
(let ((buffer-read-only nil)
(inhibit-point-motion-hooks t)
(marks (gnus-dissect-cited-text))
(fill-prefix
(if (string= (cdar marks) "") ""
(concat (cdar marks) " ")))
+ (do-fill (not long-lines))
use-hard-newlines)
- (fill-region (point-min) (point-max)))
+ (unless do-fill
+ (setq do-fill (gnus-article-foldable-buffer (cdar marks))))
+ ;; Note: the XEmacs version of `fill-region' inserts a newline
+ ;; unless the region ends with a newline.
+ (when do-fill
+ (if (not long-lines)
+ (fill-region (point-min) (point-max))
+ (goto-char (point-min))
+ (while (not (eobp))
+ (end-of-line)
+ (when (prog1
+ (> (current-column) (window-width))
+ (forward-line 1))
+ (save-restriction
+ (narrow-to-region (line-beginning-position 0) (point))
+ (fill-region (point-min) (point-max))))))))
(set-marker (caar marks) nil)
(setq marks (cdr marks)))
(when marks
gnus-cite-loose-attribution-alist nil
gnus-cite-article nil)))))
+(defun gnus-article-foldable-buffer (prefix)
+ (let ((do-fill nil)
+ columns)
+ (goto-char (point-min))
+ (while (not (eobp))
+ (unless (> (length prefix) (- (point-max) (point)))
+ (forward-char (length prefix)))
+ (skip-chars-forward " \t")
+ (unless (eolp)
+ (let ((elem (assq (current-column) columns)))
+ (unless elem
+ (setq elem (cons (current-column) 0))
+ (push elem columns))
+ (setcdr elem (1+ (cdr elem)))))
+ (end-of-line)
+ (when (> (current-column) (window-width))
+ (setq do-fill t))
+ (forward-line 1))
+ (and do-fill
+ ;; We know know that there are long lines here, but does this look
+ ;; like code? Check for ragged edges on the left.
+ (< (length columns) 3))))
+
(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'.
(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
- (inhibit-point-motion-hooks t)
- (props (nconc (list 'article-type 'cite)
- gnus-hidden-properties))
- (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
+ (with-current-buffer gnus-article-buffer
+ (let ((buffer-read-only nil)
+ marks
+ (inhibit-point-motion-hooks t)
+ (props (nconc (list 'article-type 'cite)
+ gnus-hidden-properties))
+ (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 (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)
+ ;; 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
+ (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)
`gnus-article-toggle-cited-text
(list (cons beg end) start))
(point))
- 'article-type 'annotation)
- (set-marker beg (point))))))))
+ 'article-type 'annotation)
+ (set-marker beg (point))))))))
(defun gnus-article-toggle-cited-text (args &optional arg)
"Toggle hiding the text in REGION.
(defun gnus-article-hide-citation-in-followups ()
"Hide cited text in non-root articles."
(interactive)
- (save-excursion
- (set-buffer gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
(let ((article (cdr gnus-article-current)))
- (unless (save-excursion
- (set-buffer gnus-summary-buffer)
+ (unless (with-current-buffer gnus-summary-buffer
(gnus-article-displayed-root-p article))
(gnus-article-hide-citation)))))
(setq line (1+ line)))
;; Horrible special case for some Microsoft mailers.
(goto-char (point-min))
- (when (re-search-forward gnus-cite-unsightly-citation-regexp max t)
- (setq begin (count-lines (point-min) (point)))
- (setq end (count-lines (point-min) max))
- (setq entry nil)
- (while (< begin end)
- (push begin entry)
- (setq begin (1+ begin)))
+ (setq start t begin nil entry nil)
+ (while start
+ ;; Assume this search ends up at the beginning of a line.
+ (if (re-search-forward gnus-cite-unsightly-citation-regexp max t)
+ (progn
+ (when (number-or-marker-p start)
+ (setq begin (count-lines (point-min) start)
+ end (count-lines (point-min) (match-beginning 0))))
+ (setq start (match-end 0)))
+ (when (number-or-marker-p start)
+ (setq begin (count-lines (point-min) start)
+ end (count-lines (point-min) max)))
+ (setq start nil))
+ (when begin
+ (while (< begin end)
+ ;; Need to do 1+ because we're in the bol.
+ (push (setq begin (1+ begin)) entry))))
+ (when entry
(push (cons "" entry) alist))
;; We got all the potential prefixes. Now create
;; `gnus-cite-prefix-alist' containing the oldest prefix for each
(gnus-overlay-put overlay 'face face))))))
(defun gnus-cite-toggle (prefix)
- (save-excursion
- (set-buffer gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
(gnus-cite-parse-maybe nil t)
(let ((buffer-read-only nil)
(numbers (cdr (assoc prefix gnus-cite-prefix-alist)))
(while vars
(make-local-variable (pop vars)))))
-(defun gnus-cited-line-p ()
- "Say whether the current line is a cited line."
- (save-excursion
- (beginning-of-line)
- (let ((found nil))
- (dolist (prefix (mapcar 'car gnus-cite-prefix-alist))
- (when (string= (buffer-substring (point) (+ (length prefix) (point)))
- prefix)
- (setq found t)))
- found)))
-
-
;; Highlighting of different citation levels in message-mode.
;; - message-cite-prefix will be overridden if this is enabled.
"[ \t [:alnum:]]+")))
gnus-message-max-citation-depth))
(mlist (make-list (* (1+ gnus-message-max-citation-depth) 2) nil))
- (start (line-beginning-position))
- (end (line-end-position)))
+ (start (point-at-bol))
+ (end (point-at-eol)))
(setcar mlist start)
(setcar (cdr mlist) end)
(setcar (nthcdr (* cdepth 2) mlist) start)
(setq count (1+ count)))))) ;;
"Keywords for highlighting different levels of message citations.")
-(eval-when-compile
- (autoload 'font-lock-add-keywords "font-lock")
- (autoload 'font-lock-compile-keyword "font-lock")
- (autoload 'font-lock-compile-keywords "font-lock")
- (autoload 'font-lock-remove-keywords "font-lock")
- (defvar font-lock-keywords))
-
-(defun gnus-test-font-lock-add-keywords ()
- "Return non-nil if `font-lock-add-keywords' seems to work.
-Emacs uses the `(t KEYWORDS COMPILED...)' form for compiled keywords
-while Emacs uses the `(t COMPILED...)' form. In some version(s) of
-XEmacs, `font-lock-add-keywords' and `font-lock-remove-keywords' assume
-the form of the Emacs style for compiled keywords mistakenly."
- (if (featurep 'xemacs)
- (progn
- (require 'font-lock)
- (if (fboundp 'font-lock-add-keywords)
- (let ((default-major-mode 'fundamental-mode))
- (with-temp-buffer
- (let ((font-lock-keywords '(t (x) (y)))
- font-lock-auto-fontify font-lock-mode-enable-list)
- (ignore-errors
- (font-lock-add-keywords nil '((z)))
- (assq 'y (cdr-safe font-lock-keywords))))))))
- t))
+(defvar font-lock-defaults-computed)
+(defvar font-lock-keywords)
+(defvar font-lock-set-defaults)
-(defun gnus-message-add-citation-keywords ()
- "Add font-lock for nested citations to current buffer."
- (if (gnus-test-font-lock-add-keywords)
- (font-lock-add-keywords nil gnus-message-citation-keywords 'append)
- (font-lock-set-defaults)
- (let ((was-compiled (eq (car font-lock-keywords) t)))
- (setq font-lock-keywords (copy-sequence (if was-compiled
- (cdr font-lock-keywords)
- font-lock-keywords)))
- (dolist (keyword gnus-message-citation-keywords)
- (setq font-lock-keywords
- (delete (font-lock-compile-keyword keyword)
- (delete keyword font-lock-keywords))))
- (let ((old (if (eq (car-safe font-lock-keywords) t)
- (cdr font-lock-keywords)
- font-lock-keywords)))
- (setq font-lock-keywords (append old gnus-message-citation-keywords)))
- (if was-compiled
- (setq font-lock-keywords
- (font-lock-compile-keywords font-lock-keywords))))))
-
-(defun gnus-message-remove-citation-keywords ()
- "Remove font-lock for nested citations from current buffer."
- (if (gnus-test-font-lock-add-keywords)
- (font-lock-remove-keywords nil gnus-message-citation-keywords)
- (font-lock-set-defaults)
- (let ((was-compiled (eq (car font-lock-keywords) t)))
- (if was-compiled
- (setq font-lock-keywords (cdr font-lock-keywords)))
- (setq font-lock-keywords (copy-sequence font-lock-keywords))
- (dolist (keyword gnus-message-citation-keywords)
- (setq font-lock-keywords
- (delete (font-lock-compile-keyword keyword)
- (delete keyword font-lock-keywords))))
- (if was-compiled
- (setq font-lock-keywords
- (font-lock-compile-keywords font-lock-keywords))))))
+(eval-and-compile
+ (unless (featurep 'xemacs)
+ (autoload 'font-lock-set-defaults "font-lock")))
(define-minor-mode gnus-message-citation-mode
- "Toggle `gnus-message-citation-mode' in current buffer.
-This buffer local minor mode provides additional font-lock support for
-nested citations.
-With prefix ARG, turn `gnus-message-citation-mode' on if and only if ARG is
-positive."
+ "Minor mode providing more font-lock support for nested citations.
+When enabled, it automatically turns on `font-lock-mode'."
nil ;; init-value
"" ;; lighter
nil ;; keymap
- (if gnus-message-citation-mode
- (gnus-message-add-citation-keywords)
- (gnus-message-remove-citation-keywords))
- (font-lock-fontify-buffer))
+ (when (eq major-mode 'message-mode)
+ (let ((defaults (car (if (featurep 'xemacs)
+ (get 'message-mode 'font-lock-defaults)
+ font-lock-defaults)))
+ default keywords)
+ (while defaults
+ (setq default (if (consp defaults)
+ (pop defaults)
+ (prog1
+ defaults
+ (setq defaults nil))))
+ (if gnus-message-citation-mode
+ ;; `gnus-message-citation-keywords' should be the last
+ ;; elements of the keywords because the others are unlikely
+ ;; to have the OVERRIDE flags -- XEmacs applies a keyword
+ ;; having no OVERRIDE flag to matched text even if it has
+ ;; already other faces, while Emacs doesn't.
+ (set (make-local-variable default)
+ (append (default-value default)
+ gnus-message-citation-keywords))
+ (kill-local-variable default))))
+ ;; Force `font-lock-set-defaults' to update `font-lock-keywords'.
+ (if (featurep 'xemacs)
+ (progn
+ (require 'font-lock)
+ (setq font-lock-defaults-computed nil
+ font-lock-keywords nil))
+ (setq font-lock-set-defaults nil))
+ (font-lock-set-defaults)
+ (cond ((symbol-value 'font-lock-mode)
+ (font-lock-fontify-buffer))
+ (gnus-message-citation-mode
+ (font-lock-mode 1)))))
(defun turn-on-gnus-message-citation-mode ()
"Turn on `gnus-message-citation-mode'."
;; coding: iso-8859-1
;; End:
-;;; arch-tag: 1997b044-6067-471e-8c8f-dc903093098a
;;; gnus-cite.el ends here
projects / gnus / blobdiff