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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"))
(when (and (boundp 'enable-multibyte-characters)
enable-multibyte-characters)
(require 'gnus-mule)
(gnus-mule-initialize))
)))
(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
|
