X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=emu.el;h=019b2c00e073da37d50149c0c13fbb8746ad7ad4;hb=a4cdf1263b6dddd7176b27312d5797a7a7708455;hp=55e8d4d185ff745abb8173d8fefee2e62031a82a;hpb=6c94f3a2f509ad09c2b2ea9760c076a3c9f07bf1;p=elisp%2Fapel.git

diff --git a/emu.el b/emu.el
index 55e8d4d..019b2c0 100644
--- a/emu.el
+++ b/emu.el
@@ -1,28 +1,153 @@
 ;;;
-;;; emu: Emulation module for each Emacs variants
+;;; emu.el --- Emulation module for each Emacs variants
 ;;;
-;;; $Id: emu.el,v 2.0 1995/09/08 17:47:33 morioka Exp $
+;;; Copyright (C) 1995 Free Software Foundation, Inc.
+;;; Copyright (C) 1995,1996 MORIOKA Tomohiko
 ;;;
+;;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;;; modified by KOBAYASHI Shuhei <shuhei-k@jaist.ac.jp>
+;;; Version:
+;;;	$Id: emu.el,v 7.17 1996/07/03 06:27:10 morioka Exp $
+;;; Keywords: emulation, compatibility, NEmacs, Mule, XEmacs
+;;;
+;;; This file is part of tl (Tiny Library).
+;;;
+;;; This program 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.
+;;;
+;;; This program 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 This program.  If not, write to the Free Software
+;;; Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;;;
+;;; Code:
 
-(cond ((boundp 'MULE)  (require 'emu-mule))
-      ((boundp 'NEMACS)(require 'emu-nemacs))
-      (t               (require 'emu-orig))
-      )
+(or (boundp 'emacs-major-version)
+    (defconst emacs-major-version (string-to-int emacs-version)))
 
-(if (string-match "XEmacs\\|Lucid" emacs-version)
-    (require 'emu-xemacs)
-  )
+(defvar running-emacs-18 (<= emacs-major-version 18))
+(defvar running-xemacs (string-match "XEmacs" emacs-version))
+(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)
+       )
+      ((and running-xemacs-20 (featurep 'mule))
+       (require 'emu-x20)
+       )
+      ((boundp 'NEMACS)
+       (require 'emu-nemacs)
+       )
+      (t
+       (require 'emu-e19)
+       ))
 
 
 ;;; @ Emacs 19.29 emulation
 ;;;
 
-(if (not (fboundp 'buffer-substring-no-properties))
-    (defalias 'buffer-substring-no-properties 'buffer-substring)
-  )
+(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."
+      (let ((string (buffer-substring beg end)))
+        (tl:set-text-properties 0 (length string) nil string)
+	string))
+    )
+
+(cond ((or running-emacs-19_29-or-later running-xemacs)
+       ;; for Emacs 19.29 or later and XEmacs
+       (defalias 'tl:read-string 'read-string)
+       )
+      (t
+       ;; for Emacs 19.28 or earlier
+       (defun tl:read-string (prompt &optional initial-input history)
+	 (read-string prompt initial-input)
+	 )
+       ))
+
+(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.
+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)))))
+    )
+
+
+;;; @ XEmacs emulation
+;;;
+
+(or (fboundp 'functionp)
+    (defun 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))
+	  ))
+    )
+	
+
+;;; @ for XEmacs 20
+;;;
+
+(or (fboundp 'char-int)
+    (fset 'char-int (symbol-function 'identity))
+    )
+(or (fboundp 'int-char)
+    (fset 'int-char (symbol-function 'identity))
+    )
+
+
+;;; @ for text/richtext and text/enriched
+;;;
+
+(cond ((or running-emacs-19_29-or-later running-xemacs-19_14-or-later)
+       ;; have enriched.el
+       (autoload 'richtext-decode "richtext")
+       (or (assq 'text/richtext format-alist)
+	   (setq format-alist
+		 (cons
+		  (cons 'text/richtext
+			'("Extended MIME text/richtext format."
+			  "Content-[Tt]ype:[ \t]*text/richtext"
+			  richtext-decode richtext-encode t enriched-mode))
+		  format-alist)))
+       )
+      (t
+       ;; don't have enriched.el
+       (autoload 'richtext-decode "tinyrich")
+       (autoload 'enriched-decode "tinyrich")
+       ))
 
 
 ;;; @ end
 ;;;
 
 (provide 'emu)
+
+;;; emu.el ends here