1 ;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
2 ;; Copyright (C) 1995,96 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
28 (eval-when-compile (require 'cl))
30 (defvar gnus-xemacs (string-match "XEmacs\\|Lucid" emacs-version)
31 "Non-nil if running under XEmacs.")
33 (defvar gnus-mouse-2 [mouse-2])
34 (defvar gnus-down-mouse-2 [down-mouse-2])
37 (autoload 'gnus-xmas-define "gnus-xmas")
38 (autoload 'gnus-xmas-redefine "gnus-xmas")
39 (autoload 'appt-select-lowest-window "appt.el"))
41 (or (fboundp 'mail-file-babyl-p)
42 (fset 'mail-file-babyl-p 'rmail-file-p))
46 (defun gnus-mule-cite-add-face (number prefix face)
47 ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line.
49 (let ((inhibit-point-motion-hooks t)
53 (forward-char (chars-in-string prefix))
54 (forward-char (length prefix)))
55 (skip-chars-forward " \t")
58 (skip-chars-backward " \t")
61 (gnus-overlay-put (gnus-make-overlay from to) 'face face)))))
63 (defun gnus-mule-max-width-function (el max-width)
64 (` (let* ((val (eval (, el)))
65 (valstr (if (numberp val)
66 (int-to-string val) val)))
67 (if (> (length valstr) (, max-width))
68 (truncate-string valstr (, max-width))
75 (defvar gnus-mouse-face-prop 'mouse-face
76 "Property used for highlighting mouse regions.")
78 (defvar gnus-article-x-face-command
79 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
80 "String or function to be executed to display an X-Face header.
81 If it is a string, the command will be executed in a sub-shell
82 asynchronously. The compressed face will be piped to this command.")
84 ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
85 (defvar gnus-display-type
87 (let ((display-resource (x-get-resource ".displayType" "DisplayType")))
88 (cond (display-resource (intern (downcase display-resource)))
89 ((x-display-color-p) 'color)
90 ((x-display-grayscale-p) 'grayscale)
93 "A symbol indicating the display Emacs is running under.
94 The symbol should be one of `color', `grayscale' or `mono'. If Emacs
95 guesses this display attribute wrongly, either set this variable in
96 your `~/.emacs' or set the resource `Emacs.displayType' in your
97 `~/.Xdefaults'. See also `gnus-background-mode'.
99 This is a meta-variable that will affect what default values other
100 variables get. You would normally not change this variable, but
101 pounce directly on the real variables themselves.")
103 (defvar gnus-background-mode
105 (let ((bg-resource (x-get-resource ".backgroundMode"
107 (params (frame-parameters)))
108 (cond (bg-resource (intern (downcase bg-resource)))
109 ((and (cdr (assq 'background-color params))
110 (< (apply '+ (x-color-values
111 (cdr (assq 'background-color params))))
112 (* (apply '+ (x-color-values "white")) .6)))
116 "A symbol indicating the Emacs background brightness.
117 The symbol should be one of `light' or `dark'.
118 If Emacs guesses this frame attribute wrongly, either set this variable in
119 your `~/.emacs' or set the resource `Emacs.backgroundMode' in your
121 See also `gnus-display-type'.
123 This is a meta-variable that will affect what default values other
124 variables get. You would normally not change this variable, but
125 pounce directly on the real variables themselves."))
128 ((string-match "XEmacs\\|Lucid" emacs-version)
131 ((or (not (boundp 'emacs-minor-version))
132 (< emacs-minor-version 30))
133 ;; Remove the `intangible' prop.
134 (let ((props (and (boundp 'gnus-hidden-properties)
135 gnus-hidden-properties)))
136 (while (and props (not (eq (car (cdr props)) 'intangible)))
137 (setq props (cdr props)))
139 (setcdr props (cdr (cdr (cdr props))))))
140 (unless (fboundp 'buffer-substring-no-properties)
141 (defun buffer-substring-no-properties (beg end)
142 (format "%s" (buffer-substring beg end)))))
145 (provide 'gnusutil))))
150 (defun gnus-dummy-func (&rest args))
151 (let ((funcs '(mouse-set-point set-face-foreground
152 set-face-background x-popup-menu)))
154 (unless (fboundp (car funcs))
155 (fset (car funcs) 'gnus-dummy-func))
156 (setq funcs (cdr funcs))))))
157 (unless (fboundp 'file-regular-p)
158 (defun file-regular-p (file)
159 (and (not (file-directory-p file))
160 (not (file-symlink-p file))
161 (file-exists-p file))))
162 (unless (fboundp 'face-list)
163 (defun face-list (&rest args))))
166 (let ((case-fold-search t))
168 ((string-match "windows-nt\\|os/2\\|emx" (format "%s" system-type))
169 (setq nnheader-file-name-translation-alist
170 (append nnheader-file-name-translation-alist
174 (defvar gnus-tmp-unread)
175 (defvar gnus-tmp-replied)
176 (defvar gnus-tmp-score-char)
177 (defvar gnus-tmp-indentation)
178 (defvar gnus-tmp-opening-bracket)
179 (defvar gnus-tmp-lines)
180 (defvar gnus-tmp-name)
181 (defvar gnus-tmp-closing-bracket)
182 (defvar gnus-tmp-subject-or-nil)
184 (defun gnus-ems-redefine ()
186 ((string-match "XEmacs\\|Lucid" emacs-version)
187 (gnus-xmas-redefine))
191 (defalias 'gnus-truncate-string 'truncate-string)
193 (defvar gnus-summary-display-table nil
194 "Display table used in summary mode buffers.")
195 (fset 'gnus-cite-add-face 'gnus-mule-cite-add-face)
196 (fset 'gnus-max-width-function 'gnus-mule-max-width-function)
198 (when (boundp 'gnus-check-before-posting)
199 (setq gnus-check-before-posting
201 (delq 'control-chars gnus-check-before-posting))))
203 (defun gnus-summary-line-format-spec ()
204 (insert gnus-tmp-unread gnus-tmp-replied
205 gnus-tmp-score-char gnus-tmp-indentation)
210 gnus-tmp-opening-bracket
213 (if (> (length gnus-tmp-name) 20)
214 (truncate-string gnus-tmp-name 20)
216 gnus-tmp-closing-bracket)
218 gnus-mouse-face-prop gnus-mouse-face)
219 (insert " " gnus-tmp-subject-or-nil "\n"))
226 ;; byte-compile-warnings: '(redefine callargs)
229 ;;; gnus-ems.el ends here