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-mouse-2 [mouse-2])
32 (defalias 'gnus-make-overlay 'make-overlay)
33 (defalias 'gnus-overlay-put 'overlay-put)
34 (defalias 'gnus-move-overlay 'move-overlay)
35 (defalias 'gnus-overlay-end 'overlay-end)
36 (defalias 'gnus-extent-detached-p 'ignore)
37 (defalias 'gnus-group-remove-excess-properties 'ignore)
38 (defalias 'gnus-topic-remove-excess-properties 'ignore)
39 (defalias 'gnus-extent-start-open 'ignore)
40 (defalias 'gnus-set-text-properties 'set-text-properties)
41 (defalias 'gnus-appt-select-lowest-window 'appt-select-lowest-window)
44 (autoload 'gnus-xmas-define "gnus-xmas")
45 (autoload 'gnus-xmas-redefine "gnus-xmas")
46 (autoload 'appt-select-lowest-window "appt.el"))
48 (or (fboundp 'mail-file-babyl-p)
49 (fset 'mail-file-babyl-p 'rmail-file-p))
53 (defun gnus-mule-truncate-string (str width)
54 (let ((w (string-width str))
55 (col 0) (idx 0) (p-idx 0) chr)
59 (setq chr (aref str idx)
60 col (+ col (char-width chr))
62 idx (+ idx (char-bytes chr))
64 (substring str 0 (if (= col width)
68 (defun gnus-mule-cite-add-face (number prefix face)
69 ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line.
71 (let ((inhibit-point-motion-hooks t)
75 (forward-char (chars-in-string prefix))
76 (forward-char (length prefix)))
77 (skip-chars-forward " \t")
80 (skip-chars-backward " \t")
83 (gnus-overlay-put (gnus-make-overlay from to) 'face face)))))
85 (defun gnus-mule-max-width-function (el max-width)
86 (` (let* ((val (eval (, el)))
87 (valstr (if (numberp val)
88 (int-to-string val) val)))
89 (if (> (length valstr) (, max-width))
90 (gnus-truncate-string valstr (, max-width))
94 (if (string-match "XEmacs\\|Lucid" emacs-version)
97 (defvar gnus-mouse-face-prop 'mouse-face
98 "Property used for highlighting mouse regions.")
100 ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
101 (defvar gnus-display-type
103 (let ((display-resource (x-get-resource ".displayType" "DisplayType")))
104 (cond (display-resource (intern (downcase display-resource)))
105 ((x-display-color-p) 'color)
106 ((x-display-grayscale-p) 'grayscale)
109 "A symbol indicating the display Emacs is running under.
110 The symbol should be one of `color', `grayscale' or `mono'. If Emacs
111 guesses this display attribute wrongly, either set this variable in
112 your `~/.emacs' or set the resource `Emacs.displayType' in your
113 `~/.Xdefaults'. See also `gnus-background-mode'.
115 This is a meta-variable that will affect what default values other
116 variables get. You would normally not change this variable, but
117 pounce directly on the real variables themselves.")
119 (defvar gnus-background-mode
121 (let ((bg-resource (x-get-resource ".backgroundMode"
123 (params (frame-parameters)))
124 (cond (bg-resource (intern (downcase bg-resource)))
125 ((and (cdr (assq 'background-color params))
126 (< (apply '+ (x-color-values
127 (cdr (assq 'background-color params))))
128 (/ (apply '+ (x-color-values "white")) 3)))
132 "A symbol indicating the Emacs background brightness.
133 The symbol should be one of `light' or `dark'.
134 If Emacs guesses this frame attribute wrongly, either set this variable in
135 your `~/.emacs' or set the resource `Emacs.backgroundMode' in your
137 See also `gnus-display-type'.
139 This is a meta-variable that will affect what default values other
140 variables get. You would normally not change this variable, but
141 pounce directly on the real variables themselves."))
144 ((string-match "XEmacs\\|Lucid" emacs-version)
147 ((or (not (boundp 'emacs-minor-version))
148 (< emacs-minor-version 30))
149 ;; Remove the `intangible' prop.
150 (let ((props (and (boundp 'gnus-hidden-properties)
151 gnus-hidden-properties)))
152 (while (and props (not (eq (car (cdr props)) 'intangible)))
153 (setq props (cdr props)))
154 (and props (setcdr props (cdr (cdr (cdr props))))))
155 (or (fboundp 'buffer-substring-no-properties)
156 (defun buffer-substring-no-properties (beg end)
157 (format "%s" (buffer-substring beg end)))))
160 (provide 'gnusutil))))
165 (defun gnus-dummy-func (&rest args))
166 (let ((funcs '(mouse-set-point set-face-foreground
167 set-face-background x-popup-menu)))
169 (or (fboundp (car funcs))
170 (fset (car funcs) 'gnus-dummy-func))
171 (setq funcs (cdr funcs))))))
172 (or (fboundp 'file-regular-p)
173 (defun file-regular-p (file)
174 (and (not (file-directory-p file))
175 (not (file-symlink-p file))
176 (file-exists-p file))))
177 (or (fboundp 'face-list)
178 (defun face-list (&rest args))))
181 (let ((case-fold-search t))
183 ((string-match "windows-nt\\|os/2" (format "%s" system-type))
184 (setq nnheader-file-name-translation-alist
185 (append nnheader-file-name-translation-alist
189 (defvar gnus-tmp-unread)
190 (defvar gnus-tmp-replied)
191 (defvar gnus-tmp-score-char)
192 (defvar gnus-tmp-indentation)
193 (defvar gnus-tmp-opening-bracket)
194 (defvar gnus-tmp-lines)
195 (defvar gnus-tmp-name)
196 (defvar gnus-tmp-closing-bracket)
197 (defvar gnus-tmp-subject-or-nil)
199 (defun gnus-ems-redefine ()
201 ((string-match "XEmacs\\|Lucid" emacs-version)
202 (gnus-xmas-redefine))
206 (defalias 'gnus-truncate-string
207 (if (fboundp 'truncate-string)
208 'truncate-string 'gnus-mule-truncate-string))
210 (fset 'gnus-summary-make-display-table (lambda () nil))
211 (fset 'gnus-cite-add-face 'gnus-mule-cite-add-face)
212 (fset 'gnus-max-width-function 'gnus-mule-max-width-function)
214 (if (boundp 'gnus-check-before-posting)
215 (setq gnus-check-before-posting
217 (delq 'control-chars gnus-check-before-posting))))
219 (defun gnus-summary-line-format-spec ()
220 (insert gnus-tmp-unread gnus-tmp-replied
221 gnus-tmp-score-char gnus-tmp-indentation)
226 gnus-tmp-opening-bracket
229 (if (> (length gnus-tmp-name) 20)
230 (gnus-truncate-string gnus-tmp-name 20)
232 gnus-tmp-closing-bracket)
234 gnus-mouse-face-prop gnus-mouse-face)
235 (insert " " gnus-tmp-subject-or-nil "\n"))
242 ;; byte-compile-warnings: '(redefine callargs)
245 ;;; gnus-ems.el ends here