;; Copyright (C) 1995,1996 Free Software Foundation, Inc.
;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Version: $Id: emu.el,v 7.26 1996/09/05 16:31:02 morioka Exp $
-;; Keywords: emulation, compatibility, NEmacs, MULE, XEmacs
+;; Version: $Id: emu.el,v 7.37 1996/11/29 21:22:25 shuhei-k Exp $
+;; Keywords: emulation, compatibility, NEmacs, MULE, Emacs/mule, XEmacs
-;; This file is part of tl (Tiny Library).
+;; This file is part of emu.
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with this program; see the file COPYING. If not, write to
-;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; 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.
;;; Code:
+(defmacro defun-maybe (name &rest everything-else)
+ (or (and (fboundp name)
+ (not (get name 'defun-maybe))
+ )
+ (` (or (fboundp (quote (, name)))
+ (progn
+ (defun (, name) (,@ everything-else))
+ (put (quote (, name)) 'defun-maybe t)
+ ))
+ )))
+
+(put 'defun-maybe 'lisp-indent-function 'defun)
+
+
(or (boundp 'emacs-major-version)
(defconst emacs-major-version (string-to-int emacs-version)))
(or (boundp 'emacs-minor-version)
(defvar running-emacs-18 (<= emacs-major-version 18))
(defvar running-xemacs (string-match "XEmacs" emacs-version))
+
+(defvar running-mule-merged-emacs (and (not (boundp 'MULE))
+ (not running-xemacs) (featurep 'mule)))
+(defvar running-xemacs-with-mule (and running-xemacs (featurep 'mule)))
+
+(defvar running-emacs-19 (and (not running-xemacs) (= emacs-major-version 19)))
+(defvar running-emacs-19_29-or-later
+ (or (and running-emacs-19 (>= emacs-minor-version 29))
+ (and (not running-xemacs)(>= emacs-major-version 20))))
+
(defvar running-xemacs-19 (and running-xemacs
(= emacs-major-version 19)))
-(defvar running-xemacs-20 (and running-xemacs
- (= emacs-major-version 20)))
(defvar running-xemacs-20-or-later (and running-xemacs
(>= emacs-major-version 20)))
(defvar running-xemacs-19_14-or-later
(or (and running-xemacs-19 (>= emacs-minor-version 14))
running-xemacs-20-or-later))
-(defvar running-emacs-19 (and (not running-xemacs)
- (= emacs-major-version 19)))
-(defvar running-emacs-19_29-or-later
- (or (and running-emacs-19 (>= emacs-minor-version 29))
- (and (not running-xemacs)(>= emacs-major-version 20))))
-(cond ((boundp 'MULE)
- (require 'emu-mule)
+(cond (running-mule-merged-emacs
+ ;; for mule merged EMACS
+ (require 'emu-e20)
)
- ((and running-xemacs-20 (featurep 'mule))
+ (running-xemacs-with-mule
+ ;; for XEmacs/mule
(require 'emu-x20)
)
+ ((boundp 'MULE)
+ ;; for MULE 1.* and 2.*
+ (require 'emu-mule)
+ )
((boundp 'NEMACS)
+ ;; for NEmacs and NEpoch
(require 'emu-nemacs)
)
(t
+ ;; for EMACS 19 and XEmacs 19 (without mule)
(require 'emu-e19)
))
+;;; @ binary access
+;;;
+
+(defun insert-binary-file-contents-literally
+ (filename &optional visit beg end replace)
+ "Like `insert-file-contents-literally', q.v., but don't code conversion.
+A buffer may be modified in several ways after reading into the buffer due
+to advanced Emacs features, such as file-name-handlers, format decoding,
+find-file-hooks, etc.
+ This function ensures that none of these modifications will take place.
+\[emu.el]"
+ (as-binary-input-file
+ (insert-file-contents-literally filename visit beg end replace)
+ ))
+
+
;;; @ MIME charset
;;;
;;; @ EMACS 19.29 emulation
;;;
-(or (fboundp 'buffer-substring-no-properties)
- (defun buffer-substring-no-properties (beg end)
- "Return the text from BEG to END, without text properties, as a string.
+(defvar path-separator ":"
+ "Character used to separate concatenated paths.")
+
+(defun-maybe buffer-substring-no-properties (beg end)
+ "Return the text from BEG to END, without text properties, as a string.
\[emu.el; EMACS 19.29 emulating function]"
- (let ((string (buffer-substring beg end)))
- (tl:set-text-properties 0 (length string) nil string)
- string))
- )
+ (let ((string (buffer-substring beg end)))
+ (tl:set-text-properties 0 (length string) nil string)
+ string))
+
+(defun-maybe match-string (num &optional string)
+ "Return string of text matched by last search.
+NUM specifies which parenthesized expression in the last regexp.
+ Value is nil if NUMth pair didn't match, or there were less than NUM pairs.
+Zero means the entire text matched by the whole regexp or whole string.
+STRING should be given if the last search was by `string-match' on STRING.
+\[emu.el; EMACS 19.29 emulating function]"
+ (if (match-beginning num)
+ (if string
+ (substring string (match-beginning num) (match-end num))
+ (buffer-substring (match-beginning num) (match-end num)))))
(or running-emacs-19_29-or-later
running-xemacs
)
))
-(or (fboundp 'add-to-list)
- ;; This function was imported Emacs 19.30.
- (defun add-to-list (list-var element)
- "Add to the value of LIST-VAR the element ELEMENT if it isn't there yet.
+;; This function was imported Emacs 19.30.
+(defun-maybe add-to-list (list-var element)
+ "Add to the value of LIST-VAR the element ELEMENT if it isn't there yet.
If you want to use `add-to-list' on a variable that is not defined
until a certain package is loaded, you should put the call to `add-to-list'
into a hook function that will be run only after loading the package.
\[emu.el; EMACS 19.30 emulating function]"
- (or (member element (symbol-value list-var))
- (set list-var (cons element (symbol-value list-var)))))
- )
+ (or (member element (symbol-value list-var))
+ (set list-var (cons element (symbol-value list-var)))
+ ))
+
+
+;;; @ EMACS 19.30 emulation
+;;;
+
+(cond ((fboundp 'insert-file-contents-literally)
+ )
+ ((boundp 'file-name-handler-alist)
+ (defun insert-file-contents-literally
+ (filename &optional visit beg end replace)
+ "Like `insert-file-contents', q.v., but only reads in the file.
+A buffer may be modified in several ways after reading into the buffer due
+to advanced Emacs features, such as file-name-handlers, format decoding,
+find-file-hooks, etc.
+ This function ensures that none of these modifications will take place.
+\[emu.el; Emacs 19.30 emulating function]"
+ (let (file-name-handler-alist)
+ (insert-file-contents filename visit beg end replace)
+ ))
+ )
+ (t
+ (defalias 'insert-file-contents-literally 'insert-file-contents)
+ ))
;;; @ EMACS 19.31 emulation
;;;
-(or (fboundp 'buffer-live-p)
- (defun buffer-live-p (object)
- "Return non-nil if OBJECT is a buffer which has not been killed.
+(defun-maybe buffer-live-p (object)
+ "Return non-nil if OBJECT is a buffer which has not been killed.
Value is nil if OBJECT is not a buffer or if it has been killed.
\[emu.el; EMACS 19.31 emulating function]"
- (and object
- (get-buffer object)
- (buffer-name (get-buffer object))
- ))
- )
+ (and object
+ (get-buffer object)
+ (buffer-name (get-buffer object))
+ ))
(or (fboundp 'save-selected-window)
;; This function was imported Emacs 19.33.
;;; @ XEmacs emulation
;;;
-(or (fboundp 'functionp)
- (defun functionp (obj)
- "Returns t if OBJ is a function, nil otherwise.
+(defun-maybe functionp (obj)
+ "Returns t if OBJ is a function, nil otherwise.
\[emu.el; XEmacs emulating function]"
- (or (subrp obj)
- (byte-code-function-p obj)
- (and (symbolp obj)(fboundp obj))
- (and (consp obj)(eq (car obj) 'lambda))
- ))
- )
-
+ (or (subrp obj)
+ (byte-code-function-p obj)
+ (and (symbolp obj)(fboundp obj))
+ (and (consp obj)(eq (car obj) 'lambda))
+ ))
+
;;; @ for XEmacs 20
;;;
projects / elisp / apel.git / blobdiff