--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/gnus/gnus-ems.el	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,242 @@
+;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
+;; Copyright (C) 1995,96 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Keywords: news
+
+;; This file is part of GNU Emacs.
+
+;; 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.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; 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., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;;; Code:
+
+(eval-when-compile (require 'cl))
+
+(defvar gnus-mouse-2 [mouse-2])
+
+(defalias 'gnus-make-overlay 'make-overlay)
+(defalias 'gnus-overlay-put 'overlay-put)
+(defalias 'gnus-move-overlay 'move-overlay)
+(defalias 'gnus-overlay-end 'overlay-end)
+(defalias 'gnus-extent-detached-p 'ignore)
+(defalias 'gnus-extent-start-open 'ignore)
+(defalias 'gnus-set-text-properties 'set-text-properties)
+(defalias 'gnus-group-remove-excess-properties 'ignore)
+(defalias 'gnus-topic-remove-excess-properties 'ignore)
+(defalias 'gnus-appt-select-lowest-window 'appt-select-lowest-window)
+(defalias 'gnus-mail-strip-quoted-names 'mail-strip-quoted-names)
+(defalias 'gnus-make-local-hook 'make-local-hook)
+(defalias 'gnus-add-hook 'add-hook)
+(defalias 'gnus-character-to-event 'identity)
+(defalias 'gnus-add-text-properties 'add-text-properties)
+(defalias 'gnus-put-text-property 'put-text-property)
+(defalias 'gnus-mode-line-buffer-identification 'identity)
+
+
+(eval-and-compile 
+  (autoload 'gnus-xmas-define "gnus-xmas")
+  (autoload 'gnus-xmas-redefine "gnus-xmas")
+  (autoload 'appt-select-lowest-window "appt.el"))
+
+(or (fboundp 'mail-file-babyl-p)
+    (fset 'mail-file-babyl-p 'rmail-file-p))
+
+;;; Mule functions.
+
+(defun gnus-mule-cite-add-face (number prefix face)
+  ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line.
+  (if face
+      (let ((inhibit-point-motion-hooks t)
+	    from to)
+	(goto-line number)
+	(if (boundp 'MULE)
+	    (forward-char (chars-in-string prefix))
+	  (forward-char (length prefix)))
+	(skip-chars-forward " \t")
+	(setq from (point))
+	(end-of-line 1)
+	(skip-chars-backward " \t")
+	(setq to (point))
+	(if (< from to)
+	    (gnus-overlay-put (gnus-make-overlay from to) 'face face)))))
+
+(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 valstr (, max-width))
+	 valstr))))
+
+(eval-and-compile
+  (if (string-match "XEmacs\\|Lucid" emacs-version)
+      ()
+
+    (defvar gnus-mouse-face-prop 'mouse-face
+      "Property used for highlighting mouse regions.")
+
+    (defvar gnus-article-x-face-command
+      "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
+      "String or function to be executed to display an X-Face header.
+If it is a string, the command will be executed in a sub-shell
+asynchronously.	 The compressed face will be piped to this command.")
+
+    ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
+    (defvar gnus-display-type 
+      (condition-case nil
+	  (let ((display-resource (x-get-resource ".displayType" "DisplayType")))
+	    (cond (display-resource (intern (downcase display-resource)))
+		  ((x-display-color-p) 'color)
+		  ((x-display-grayscale-p) 'grayscale)
+		  (t 'mono)))
+	(error 'mono))
+      "A symbol indicating the display Emacs is running under.
+The symbol should be one of `color', `grayscale' or `mono'. If Emacs
+guesses this display attribute wrongly, either set this variable in
+your `~/.emacs' or set the resource `Emacs.displayType' in your
+`~/.Xdefaults'. See also `gnus-background-mode'.
+
+This is a meta-variable that will affect what default values other
+variables get.  You would normally not change this variable, but
+pounce directly on the real variables themselves.")
+
+    (defvar gnus-background-mode 
+      (condition-case nil
+	  (let ((bg-resource (x-get-resource ".backgroundMode"
+					     "BackgroundMode"))
+		(params (frame-parameters)))
+	    (cond (bg-resource (intern (downcase bg-resource)))
+		  ((and (cdr (assq 'background-color params))
+			(< (apply '+ (x-color-values
+				      (cdr (assq 'background-color params))))
+			   (/ (apply '+ (x-color-values "white")) 3)))
+		   'dark)
+		  (t 'light)))
+	(error 'light))
+      "A symbol indicating the Emacs background brightness.
+The symbol should be one of `light' or `dark'.
+If Emacs guesses this frame attribute wrongly, either set this variable in
+your `~/.emacs' or set the resource `Emacs.backgroundMode' in your
+`~/.Xdefaults'.
+See also `gnus-display-type'.
+
+This is a meta-variable that will affect what default values other
+variables get.  You would normally not change this variable, but
+pounce directly on the real variables themselves."))
+
+  (cond 
+   ((string-match "XEmacs\\|Lucid" emacs-version)
+    (gnus-xmas-define))
+
+   ((or (not (boundp 'emacs-minor-version))
+	(< emacs-minor-version 30))
+    ;; Remove the `intangible' prop.
+    (let ((props (and (boundp 'gnus-hidden-properties) 
+		      gnus-hidden-properties)))
+      (while (and props (not (eq (car (cdr props)) 'intangible)))
+	(setq props (cdr props)))
+      (and props (setcdr props (cdr (cdr (cdr props))))))
+    (or (fboundp 'buffer-substring-no-properties)
+	(defun buffer-substring-no-properties (beg end)
+	  (format "%s" (buffer-substring beg end)))))
+   
+   ((boundp 'MULE)
+    (provide 'gnusutil))))
+
+(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
+	(or (fboundp (car funcs))
+	    (fset (car funcs) 'gnus-dummy-func))
+	(setq funcs (cdr funcs))))))
+  (or (fboundp 'file-regular-p)
+      (defun file-regular-p (file)
+	(and (not (file-directory-p file))
+	     (not (file-symlink-p file))
+	     (file-exists-p file))))
+  (or (fboundp 'face-list)
+      (defun face-list (&rest args))))
+
+(eval-and-compile
+  (let ((case-fold-search t))
+    (cond
+     ((string-match "windows-nt\\|os/2\\|emx" (format "%s" system-type))
+      (setq nnheader-file-name-translation-alist
+	    (append nnheader-file-name-translation-alist
+		    '((?: . ?_)
+		      (?+ . ?-))))))))
+
+(defvar gnus-tmp-unread)
+(defvar gnus-tmp-replied)
+(defvar gnus-tmp-score-char)
+(defvar gnus-tmp-indentation)
+(defvar gnus-tmp-opening-bracket)
+(defvar gnus-tmp-lines)
+(defvar gnus-tmp-name)
+(defvar gnus-tmp-closing-bracket)
+(defvar gnus-tmp-subject-or-nil)
+
+(defun gnus-ems-redefine ()
+  (cond 
+   ((string-match "XEmacs\\|Lucid" emacs-version)
+    (gnus-xmas-redefine))
+
+   ((boundp 'MULE)
+    ;; Mule definitions
+    (defalias 'gnus-truncate-string 'truncate-string)
+
+    (fset 'gnus-summary-make-display-table (lambda () nil))
+    (fset 'gnus-cite-add-face 'gnus-mule-cite-add-face)
+    (fset 'gnus-max-width-function 'gnus-mule-max-width-function)
+    
+    (if (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 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"))
+    )))
+
+
+(provide 'gnus-ems)
+
+;; Local Variables:
+;; byte-compile-warnings: '(redefine callargs)
+;; End:
+
+;;; gnus-ems.el ends here