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- ;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
- ;; Copyright (C) 1995,96,97 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))
-
- ;;; Function aliases later to be redefined for XEmacs usage.
-
- (defvar gnus-xemacs (string-match "XEmacs\\|Lucid" emacs-version)
- "Non-nil if running under XEmacs.")
-
- (defvar gnus-mouse-2 [mouse-2])
- (defvar gnus-down-mouse-2 [down-mouse-2])
- (defvar gnus-mode-line-modified
- (if (or gnus-xemacs
- (< emacs-major-version 20))
- '("--**-" . "-----")
- '("**" "--")))
-
- (eval-and-compile
- (autoload 'gnus-xmas-define "gnus-xmas")
- (autoload 'gnus-xmas-redefine "gnus-xmas")
- (autoload 'appt-select-lowest-window "appt"))
-
- (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.
- (when 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))
- (when (< 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))))
-
- (defun gnus-encode-coding-string (string system)
- string)
-
- (eval-and-compile
- (if (string-match "XEmacs\\|Lucid" emacs-version)
- nil
-
- (defvar gnus-mouse-face-prop 'mouse-face
- "Property used for highlighting mouse regions."))
-
- (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)))
- (when props
- (setcdr props (cdr (cdr (cdr props))))))
- (unless (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
- (unless (fboundp (car funcs))
- (fset (car funcs) 'gnus-dummy-func))
- (setq funcs (cdr funcs))))))
- (unless (fboundp 'file-regular-p)
- (defun file-regular-p (file)
- (and (not (file-directory-p file))
- (not (file-symlink-p file))
- (file-exists-p file))))
- (unless (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))
-
- ((featurep 'mule)
- ;; Mule and new Emacs definitions
-
- ;; [Note] Now there are three kinds of mule implementations,
- ;; original MULE, XEmacs/mule and beta version of Emacs including
- ;; some mule features. Unfortunately these API are different. In
- ;; particular, Emacs (including original MULE) and XEmacs are
- ;; quite different.
- ;; Predicates to check are following:
- ;; (boundp 'MULE) is t only if MULE (original; anything older than
- ;; Mule 2.3) is running.
- ;; (featurep 'mule) is t when every mule variants are running.
-
- ;; These implementations may be able to share between original
- ;; MULE and beta version of new Emacs. In addition, it is able to
- ;; detect XEmacs/mule by (featurep 'mule) and to check variable
- ;; `emacs-version'. In this case, implementation for XEmacs/mule
- ;; may be able to share between XEmacs and XEmacs/mule.
-
- (defalias 'gnus-truncate-string 'truncate-string)
-
- (defvar gnus-summary-display-table nil
- "Display table used in summary mode buffers.")
- (fset 'gnus-cite-add-face 'gnus-mule-cite-add-face)
- (fset 'gnus-max-width-function 'gnus-mule-max-width-function)
- (fset 'gnus-summary-set-display-table 'ignore)
- (fset 'gnus-encode-coding-string 'encode-coding-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 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"))
- )))
-
- (defun gnus-region-active-p ()
- "Say whether the region is active."
- (and (boundp 'transient-mark-mode)
- transient-mark-mode
- (boundp 'mark-active)
- mark-active))
-
- (defun gnus-add-minor-mode (mode name map)
- (if (fboundp 'add-minor-mode)
- (add-minor-mode mode name map)
- (unless (assq mode minor-mode-alist)
- (push `(,mode ,name) minor-mode-alist))
- (unless (assq mode minor-mode-map-alist)
- (push (cons mode map)
- minor-mode-map-alist))))
-
- (provide 'gnus-ems)
-
- ;; Local Variables:
- ;; byte-compile-warnings: '(redefine callargs)
- ;; End:
-
- ;;; gnus-ems.el ends here
-