(eval-when-compile (require 'cl))
(require 'nnheader)
(require 'gnus-art)
(defgroup smiley nil
"Turn :-)'s into real images."
:group 'gnus-visual)
(defcustom smiley-data-directory
(nnheader-find-etc-directory "images/smilies")
"Location of the smiley faces files."
:type 'directory
:group 'smiley)
(defcustom smiley-regexp-alist
'(("\\(:-?)\\)\\W" 1 "smile")
("\\(;-?)\\)\\W" 1 "blink")
("\\(:-]\\)\\W" 1 "forced")
("\\(8-)\\)\\W" 1 "braindamaged")
("\\(:-|\\)\\W" 1 "indifferent")
("\\(:-[/\\]\\)\\W" 1 "wry")
("\\(:-(\\)\\W" 1 "sad")
("\\(X-)\\)\\W" 1 "dead")
("\\(:-{\\)\\W" 1 "frown"))
"*A list of regexps to map smilies to images.
The elements are (REGEXP MATCH IMAGE), where MATCH is the submatch in
regexp to replace with IMAGE. IMAGE is the name of an image file in
`smiley-data-directory'."
:type '(repeat (list regexp
(integer :tag "Regexp match number")
(string :tag "Image name")))
:set (lambda (symbol value)
(set-default symbol value)
(smiley-update-cache))
:initialize 'custom-initialize-default
:group 'smiley)
(defcustom gnus-smiley-file-types
(let ((types (list "pbm")))
(when (gnus-image-type-available-p 'xpm)
(push "xpm" types))
types)
"*List of suffixes on smiley file names to try."
:version "22.1"
:type '(repeat string)
:group 'smiley)
(defvar smiley-cached-regexp-alist nil)
(defun smiley-update-cache ()
(setq smiley-cached-regexp-alist nil)
(dolist (elt (if (symbolp smiley-regexp-alist)
(symbol-value smiley-regexp-alist)
smiley-regexp-alist))
(let ((types gnus-smiley-file-types)
file type)
(while (and (not file)
(setq type (pop types)))
(unless (file-exists-p
(setq file (expand-file-name (concat (nth 2 elt) "." type)
smiley-data-directory)))
(setq file nil)))
(when type
(let ((image (gnus-create-image file (intern type) nil
:ascent 'center)))
(when image
(push (list (car elt) (cadr elt) image)
smiley-cached-regexp-alist)))))))
(defun smiley-region (start end)
"Replace in the region `smiley-regexp-alist' matches with corresponding images.
A list of images is returned."
(interactive "r")
(when (gnus-graphic-display-p)
(unless smiley-cached-regexp-alist
(smiley-update-cache))
(save-excursion
(let ((beg (or start (point-min)))
group image images string)
(dolist (entry smiley-cached-regexp-alist)
(setq group (nth 1 entry)
image (nth 2 entry))
(goto-char beg)
(while (re-search-forward (car entry) end t)
(setq string (match-string group))
(goto-char (match-end group))
(delete-region (match-beginning group) (match-end group))
(when image
(push image images)
(gnus-add-wash-type 'smiley)
(gnus-add-image 'smiley image)
(gnus-put-image image string 'smiley))))
images))))
(defun smiley-buffer (&optional buffer)
"Run `smiley-region' at the buffer, specified in the argument or
interactively. If there's no argument, do it at the current buffer"
(interactive "bBuffer to run smiley-region: ")
(save-excursion
(if buffer
(set-buffer (get-buffer buffer)))
(smiley-region (point-min) (point-max))))
(defun smiley-toggle-buffer (&optional arg)
"Toggle displaying smiley faces in article buffer.
With arg, turn displaying on if and only if arg is positive."
(interactive "P")
(gnus-with-article-buffer
(if (if (numberp arg)
(> arg 0)
(not (memq 'smiley gnus-article-wash-types)))
(smiley-region (point-min) (point-max))
(gnus-delete-images 'smiley))))
(defun smiley-mouse-toggle-buffer (event)
"Toggle displaying smiley faces.
With arg, turn displaying on if and only if arg is positive."
(interactive "e")
(save-excursion
(save-window-excursion
(mouse-set-point event)
(smiley-toggle-buffer))))
(provide 'smiley)