-;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
+;;; gnus-ems.el --- functions for making Semi-gnus work under different Emacsen
;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
+;; Tatsuya Ichikawa <t-ichi@niagara.shiojiri.ne.jp>
;; Keywords: news
;; This file is part of GNU Emacs.
;;; Function aliases later to be redefined for XEmacs usage.
-(eval-and-compile
- (defvar gnus-xemacs (string-match "XEmacs" emacs-version)
- "Non-nil if running under XEmacs."))
-
(defvar gnus-mouse-2 [mouse-2])
(defvar gnus-down-mouse-3 [down-mouse-3])
(defvar gnus-down-mouse-2 [down-mouse-2])
(defvar gnus-widget-button-keymap nil)
(defvar gnus-mode-line-modified
- (if (or gnus-xemacs
+ (if (or (featurep 'xemacs)
(< emacs-major-version 20))
'("--**-" . "-----")
'("**" "--")))
(autoload 'gnus-xmas-redefine "gnus-xmas")
(autoload 'appt-select-lowest-window "appt"))
-;;; Mule functions.
+(if (featurep 'xemacs)
+ (autoload 'gnus-smiley-display "smiley")
+ (autoload 'gnus-smiley-display "smiley-ems")) ; override XEmacs version
+
+(defun gnus-kill-all-overlays ()
+ "Delete all overlays in the current buffer."
+ (let* ((overlayss (overlay-lists))
+ (buffer-read-only nil)
+ (overlays (delq nil (nconc (car overlayss) (cdr overlayss)))))
+ (while overlays
+ (delete-overlay (pop overlays)))))
-(defun gnus-mule-max-width-function (el max-width)
- `(let* ((val (eval (, el)))
- (valstr (if (numberp val)
- (int-to-string val) val)))
- (if (> (length valstr) ,max-width)
- (truncate-string-to-width valstr ,max-width)
- valstr)))
+;;; Mule functions.
(eval-and-compile
- (if gnus-xemacs
+ (if (featurep 'xemacs)
(gnus-xmas-define)
(defvar gnus-mouse-face-prop 'mouse-face
"Property used for highlighting mouse regions.")))
(eval-and-compile
- (cond
- ((not window-system)
- (defun gnus-dummy-func (&rest args))
- (let ((funcs '(mouse-set-point set-face-foreground
- set-face-background x-popup-menu)))
- (while funcs
- (unless (fboundp (car funcs))
- (defalias (car funcs) 'gnus-dummy-func))
- (setq funcs (cdr funcs)))))))
-
-(eval-and-compile
(let ((case-fold-search t))
(cond
((string-match "windows-nt\\|os/2\\|emx\\|cygwin32"
(defun gnus-ems-redefine ()
(cond
- (gnus-xemacs
+ ((featurep 'xemacs)
(gnus-xmas-redefine))
((featurep 'mule)
;; original MULE, XEmacs/mule and Emacs 20+ including
;; MULE features. Unfortunately these API are different. In
;; particular, Emacs (including original MULE) and XEmacs are
- ;; quite different. Howvere, this version of Gnus doesn't support
+ ;; quite different. However, this version of Gnus doesn't support
;; anything other than XEmacs 20+ and Emacs 20.3+.
;; Predicates to check are following:
(defvar gnus-summary-display-table nil
"Display table used in summary mode buffers.")
- (defalias 'gnus-max-width-function 'gnus-mule-max-width-function)
+
(defalias 'gnus-summary-set-display-table (lambda ()))
+ (if (fboundp 'truncate-string-to-width)
+ (fset 'gnus-truncate-string 'truncate-string-to-width)
+ (fset 'gnus-truncate-string 'truncate-string))
+
(when (boundp 'gnus-check-before-posting)
(setq gnus-check-before-posting
(delq 'long-lines
(delq 'control-chars gnus-check-before-posting))))
-
- (defun gnus-summary-line-format-spec ()
- (insert gnus-tmp-unread gnus-tmp-replied
- gnus-tmp-score-char gnus-tmp-indentation)
- (put-text-property
- (point)
- (progn
- (insert
- gnus-tmp-opening-bracket
- (format "%4d: %-20s"
- gnus-tmp-lines
- (if (> (length gnus-tmp-name) 20)
- (truncate-string-to-width gnus-tmp-name 20)
- gnus-tmp-name))
- gnus-tmp-closing-bracket)
- (point))
- gnus-mouse-face-prop gnus-mouse-face)
- (insert " " gnus-tmp-subject-or-nil "\n")))))
+ ))
+ (when (featurep 'mule)
+ (defun gnus-tilde-max-form (el max-width)
+ "Return a form that limits EL to MAX-WIDTH."
+ (let ((max (abs max-width)))
+ (if (symbolp el)
+ (if (< max-width 0)
+ `(let ((width (string-width ,el)))
+ (gnus-truncate-string ,el width (- width ,max)))
+ `(gnus-truncate-string ,el ,max))
+ (if (< max-width 0)
+ `(let* ((val (eval ,el))
+ (width (string-width val)))
+ (gnus-truncate-string val width (- width ,max)))
+ `(let ((val (eval ,el)))
+ (gnus-truncate-string val ,max))))))
+
+ (defun gnus-tilde-cut-form (el cut-width)
+ "Return a form that cuts CUT-WIDTH off of EL."
+ (let ((cut (abs cut-width)))
+ (if (symbolp el)
+ (if (< cut-width 0)
+ `(gnus-truncate-string ,el (- (string-width ,el) ,cut))
+ `(gnus-truncate-string ,el (string-width ,el) ,cut))
+ (if (< cut-width 0)
+ `(let ((val (eval ,el)))
+ (gnus-truncate-string val (- (string-width val) ,cut)))
+ `(let ((val (eval ,el)))
+ (gnus-truncate-string val (string-width val) ,cut))))))
+ ))
(defun gnus-region-active-p ()
"Say whether the region is active."
(if (fboundp 'add-minor-mode)
(defalias 'gnus-add-minor-mode 'add-minor-mode)
- (defun gnus-add-minor-mode (mode name map)
+ (defun gnus-add-minor-mode (mode name map &rest rest)
(set (make-local-variable mode) t)
(unless (assq mode minor-mode-alist)
(push `(,mode ,name) minor-mode-alist))
pixmap file height beg i)
(save-excursion
(switch-to-buffer (gnus-get-buffer-create gnus-group-buffer))
- (let ((buffer-read-only nil))
+ (let ((buffer-read-only nil)
+ width height)
(erase-buffer)
(when (and dir
- (file-exists-p (setq file (concat dir "x-splash"))))
+ (file-exists-p (setq file
+ (expand-file-name "x-splash" dir))))
(with-temp-buffer
- (insert-file-contents file)
+ (insert-file-contents-as-binary file)
(goto-char (point-min))
(ignore-errors
(setq pixmap (read (current-buffer))))))
(when pixmap
- (unless (facep 'gnus-splash)
- (make-face 'gnus-splash))
+ (make-face 'gnus-splash)
(setq height (/ (car pixmap) (frame-char-height))
width (/ (cadr pixmap) (frame-char-width)))
(set-face-foreground 'gnus-splash "Brown")
(insert-char ?\n (* (/ (window-height) 2 height) height))
(setq i height)
(while (> i 0)
- (insert-char ? (* (/ (window-width) 2 width) width))
+ (insert-char ?\ (* (/ (window-width) 2 width) width))
(setq beg (point))
- (insert-char ? width)
+ (insert-char ?\ width)
(set-text-properties beg (point) '(face gnus-splash))
- (insert "\n")
+ (insert ?\n)
(decf i))
(goto-char (point-min))
(sit-for 0))))))
(defvar gnus-article-xface-ring-size 6
"Length of the ring used for `gnus-article-xface-ring-internal'.")
+(defvar gnus-article-compface-xbm
+ (condition-case ()
+ (eq 0 (string-match "#define"
+ (shell-command-to-string "uncompface -X")))
+ (error nil))
+ "Non-nil means the compface program supports the -X option.
+That produces XBM output.")
+
(defun gnus-article-display-xface (beg end)
"Display an XFace header from between BEG and END in the current article.
-This requires support images in your Emacs and the external programs
-`uncompface', `icontopbm' and `ppmtoxbm'. On a GNU/Linux system these
+Requires support for images in your Emacs and the external programs
+`uncompface', and `icontopbm'. On a GNU/Linux system these
might be in packages with names like `compface' or `faces-xface' and
-`netpbm' or `libgr-progs', for instance.
+`netpbm' or `libgr-progs', for instance. See also
+`gnus-article-compface-xbm'.
This function is for Emacs 21+. See `gnus-xmas-article-display-xface'
for XEmacs."
;; It might be worth converting uncompface's output in Lisp.
- (unless gnus-article-xface-ring-internal ; Only load ring when needed.
- (setq gnus-article-xface-ring-internal
- (make-ring gnus-article-xface-ring-size)))
- (save-excursion
- (let* ((cur (current-buffer))
- (data (buffer-substring beg end))
- (image (cdr-safe (assoc data (ring-elements
- gnus-article-xface-ring-internal)))))
- (when (if (fboundp 'display-graphic-p)
- (display-graphic-p))
+ (when (if (fboundp 'display-graphic-p)
+ (display-graphic-p))
+ (unless gnus-article-xface-ring-internal ; Only load ring when needed.
+ (setq gnus-article-xface-ring-internal
+ (make-ring gnus-article-xface-ring-size)))
+ (save-excursion
+ (let* ((cur (current-buffer))
+ (data (buffer-substring beg end))
+ (image (cdr-safe (assoc data (ring-elements
+ gnus-article-xface-ring-internal))))
+ default-enable-multibyte-characters)
(unless image
- (let ((coding-system-for-read 'binary)
- (coding-system-for-write 'binary))
- (with-temp-buffer
- (insert data)
- (and (eq 0 (call-process-region (point-min) (point-max)
- "uncompface"
- 'delete '(t nil)))
+ (with-temp-buffer
+ (insert data)
+ (and (eq 0 (apply #'call-process-region (point-min) (point-max)
+ "uncompface"
+ 'delete '(t nil) nil
+ (if gnus-article-compface-xbm
+ '("-X"))))
+ (if gnus-article-compface-xbm
+ t
(goto-char (point-min))
(progn (insert "/* Width=48, Height=48 */\n") t)
(eq 0 (call-process-region (point-min) (point-max)
"icontopbm"
- 'delete '(t nil)))
- (eq 0 (call-process-region (point-min) (point-max)
- "pbmtoxbm"
- 'delete '(t nil)))
- (setq image (create-image (buffer-string) 'xbm t)))))
- (ring-insert gnus-article-xface-ring-internal (cons data image))))
- (when image
- (goto-char (point-min))
- (re-search-forward "^From:" nil 'move)
- (insert-image image)))))
+ 'delete '(t nil))))
+ ;; Miles Bader says that faces don't look right as
+ ;; light on dark.
+ (if (eq 'dark (cdr-safe (assq 'background-mode
+ (frame-parameters))))
+ (setq image (create-image (buffer-string)
+ (if gnus-article-compface-xbm
+ 'xbm
+ 'pbm)
+ t
+ :ascent 'center
+ :foreground "black"
+ :background "white"))
+ (setq image (create-image (buffer-string)
+ (if gnus-article-compface-xbm
+ 'xbm
+ 'pbm)
+ t
+ :ascent 'center)))))
+ (ring-insert gnus-article-xface-ring-internal (cons data image)))
+ (when image
+ (goto-char (point-min))
+ (re-search-forward "^From:" nil 'move)
+ (insert-image image))))))
+
+(defun-maybe assoc-ignore-case (key alist)
+ "Like `assoc', but assumes KEY is a string and ignores case when comparing."
+ (setq key (downcase key))
+ (let (element)
+ (while (and alist (not element))
+ (if (equal key (downcase (car (car alist))))
+ (setq element (car alist)))
+ (setq alist (cdr alist)))
+ element))
+
+\f
+;;; Language support staffs.
+
+(defvar-maybe current-language-environment "English"
+ "The language environment.")
+
+(defvar-maybe language-info-alist nil
+ "Alist of language environment definitions.")
+
+(defun-maybe get-language-info (lang-env key)
+ "Return information listed under KEY for language environment LANG-ENV."
+ (if (symbolp lang-env)
+ (setq lang-env (symbol-name lang-env)))
+ (let ((lang-slot (assoc-ignore-case lang-env language-info-alist)))
+ (if lang-slot
+ (cdr (assq key (cdr lang-slot))))))
+
+(defun-maybe set-language-info (lang-env key info)
+ "Modify part of the definition of language environment LANG-ENV."
+ (if (symbolp lang-env)
+ (setq lang-env (symbol-name lang-env)))
+ (let (lang-slot key-slot)
+ (setq lang-slot (assoc lang-env language-info-alist))
+ (if (null lang-slot) ; If no slot for the language, add it.
+ (setq lang-slot (list lang-env)
+ language-info-alist (cons lang-slot language-info-alist)))
+ (setq key-slot (assq key lang-slot))
+ (if (null key-slot) ; If no slot for the key, add it.
+ (progn
+ (setq key-slot (list key))
+ (setcdr lang-slot (cons key-slot (cdr lang-slot)))))
+ (setcdr key-slot info)))
(provide 'gnus-ems)
projects / elisp / gnus.git- / blobdiff