Subject: [PATCH] Remove XEmacs compat code from edt.el
From: Stefan Kangas <[email-masked]>
To: [email-masked]
Date: Fri, 4 Oct 2019 16:08:36 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Is this okay to commit?

Best regards,
Stefan Kangas
From 76efc318f7529ecae939a764223c63983eac0bc6 Mon Sep 17 00:00:00 2001
From: Stefan Kangas <[email-masked]>
Date: Fri, 4 Oct 2019 16:06:32 +0200
Subject: [PATCH] Remove XEmacs compat code from edt.el

* lisp/emulation/edt.el (top-level, edt-emacs-variant)
(edt-window-system, edt-xserver, edt-page-backward)
(edt-beginning-of-line, edt-end-of-line-forward)
(edt-end-of-line-backward, edt-one-word-forward)
(edt-one-word-backward, edt-character, edt-line-forward)
(edt-next-line, edt-previous-line, edt-top, edt-find-forward)
(edt-find-backward, edt-find-next-forward)
(edt-find-next-backward, edt-reset, edt-advance, edt-backup)
(edt-define-key, edt-bottom-check, edt-sentence-forward)
(edt-sentence-backward, edt-paragraph-forward)
(edt-paragraph-backward, edt-restore-key, edt-window-top)
(edt-window-bottom, edt-scroll-window-backward-line)
(edt-line-to-bottom-of-window, edt-line-to-middle-of-window)
(edt-goto-percentage, edt-display-the-time, edt-remember)
(edt-split-window, edt-load-keys, edt-emulation-on)
(edt-emulation-off, edt-default-emulation-setup)
(edt-user-emulation-setup, edt-select-default-global-map)
(edt-select-user-global-map): Remove XEmacs compat code.
---
 lisp/emulation/edt.el | 213 +++++++++++++-----------------------------
 1 file changed, 66 insertions(+), 147 deletions(-)

diff --git a/lisp/emulation/edt.el b/lisp/emulation/edt.el
index dcc327dbd4..0fdfd75a26 100644
--- a/lisp/emulation/edt.el
+++ b/lisp/emulation/edt.el
@@ -106,10 +106,7 @@
 ;;      customization file, edt-user.el, to do this.
 ;;      See Info node `edt' for more details.
 
-;;  3.  EDT Emulation now also works in XEmacs, including the
-;;      highlighting of selected text.
-
-;;  4.  If you access a workstation using an X Server, observe that
+;;  3.  If you access a workstation using an X Server, observe that
 ;;      the initialization file generated by edt-mapper.el will now
 ;;      contain the name of the X Server vendor.  This is a
 ;;      convenience for those who have access to their Unix account
@@ -120,7 +117,7 @@
 ;;      names.  Then, the correct initialization file for the
 ;;      particular X server in use is loaded correctly automatically.
 
-;;  5.  Also, edt-mapper.el is now capable of binding an ASCII key
+;;  4.  Also, edt-mapper.el is now capable of binding an ASCII key
 ;;      sequence, providing the ASCII key sequence prefix is already
 ;;      known by Emacs to be a prefix.  As a result of providing this
 ;;      support, some terminal/keyboard/window system configurations,
@@ -140,7 +137,7 @@
 ;;      your terminal OR a bug in the terminal emulation software you
 ;;      are using.)
 
-;;  6.  The edt-quit function (bound to GOLD-q by default) has been
+;;  5.  The edt-quit function (bound to GOLD-q by default) has been
 ;;      modified to warn the user when file-related buffer
 ;;      modifications exist.  It now cautions the user that those
 ;;      modifications will be lost if the user quits without saving
@@ -180,8 +177,6 @@ edt-orig-transient-mark-mode
 (defvar edt-rect-start-point)
 (defvar edt-user-global-map)
 (defvar rect-start-point)
-(defvar time-string)
-(defvar zmacs-region-stays)
 
 ;;;
 ;;;  Version Information
@@ -310,23 +305,13 @@ edt-term
 ;;;
 ;;;     o edt-emulation-on      o edt-load-keys
 ;;;
-(defconst edt-emacs-variant (if (featurep 'emacs) "gnu" "xemacs")
-  "Indicates Emacs variant:  GNU Emacs or XEmacs (aka Lucid Emacs).")
-
-(defconst edt-window-system (if (featurep 'emacs) window-system (console-type))
-  "Indicates window system (in GNU Emacs) or console type (in XEmacs).")
-
-(declare-function x-server-vendor "xfns.c" (&optional terminal))
-
-(defconst edt-xserver (when (eq edt-window-system 'x)
+(defconst edt-xserver (when (eq window-system 'x)
 			;; The Cygwin window manager has a `/' in its
 			;; name, which breaks the generated file name of
 			;; the custom key map file.  Replace `/' with a
 			;; `-' to work around that.
-			(if (featurep 'xemacs)
-			    (replace-in-string (x-server-vendor) "[ /]" "-")
-			  (replace-regexp-in-string "[ /]" "-"
-						    (x-server-vendor))))
+			(replace-regexp-in-string "[ /]" "-"
+						  (x-server-vendor)))
   "Indicates X server vendor name, if applicable.")
 
 (defvar edt-keys-file nil
@@ -388,8 +373,7 @@ edt-page-backward
       (error "Beginning of buffer")
 	(progn
 	  (backward-page num)
-      (edt-line-to-top-of-window)
-	  (if (featurep 'xemacs) (setq zmacs-region-stays t)))))
+      (edt-line-to-top-of-window))))
 
 (defun edt-page (num)
   "Move in current direction to next page delimiter.
@@ -449,8 +433,7 @@ edt-beginning-of-line
       (progn
 	(setq num (1- num))
 	(forward-line (* -1 num))))
-    (edt-top-check beg num))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (edt-top-check beg num)))

 ;;;
@@ -465,8 +448,7 @@ edt-end-of-line-forward
   (let ((beg (edt-current-line)))
     (forward-char)
     (end-of-line num)
-    (edt-bottom-check beg num))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (edt-bottom-check beg num)))

 (defun edt-end-of-line-backward (num)
@@ -476,8 +458,7 @@ edt-end-of-line-backward
   (edt-check-prefix num)
   (let ((beg (edt-current-line)))
     (end-of-line (1- num))
-    (edt-top-check beg num))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (edt-top-check beg num)))

 (defun edt-end-of-line (num)
@@ -521,8 +502,7 @@ edt-one-word-forward
 	      (not (eobp))
 	      (eq ?\  (char-syntax (following-char)))
 	      (not (memq (following-char) edt-word-entities)))
-	(forward-char))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+	(forward-char)))))
 
 (defun edt-one-word-backward ()
   "Move backward to first character of previous word."
@@ -545,8 +525,7 @@ edt-one-word-backward
 		  (not (bobp))
 		  (not (eq ?\  (char-syntax (preceding-char))))
 		  (not (memq (preceding-char) edt-word-entities)))
-	    (backward-char)))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+	    (backward-char))))))
 
 (defun edt-word-forward (num)
   "Move forward to first character of next word.
@@ -585,8 +564,7 @@ edt-character
   (edt-check-prefix num)
   (if (equal edt-direction-string edt-forward-string)
       (forward-char num)
-    (backward-char num))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (backward-char num)))
 
 ;;;
 ;;; LINE
@@ -608,8 +586,7 @@ edt-line-forward
   (edt-check-prefix num)
   (let ((beg (edt-current-line)))
     (forward-line num)
-    (edt-bottom-check beg num))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (edt-bottom-check beg num)))
 
 (defun edt-line (num)
   "Move in current direction to next beginning of line mark.
@@ -631,8 +608,7 @@ edt-next-line
   (let ((beg (edt-current-line)))
     ;; We're deliberately using next-line instead of forward-line.
     (with-no-warnings (next-line num))
-    (edt-bottom-check beg num))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (edt-bottom-check beg num)))
 
 (defun edt-previous-line (num)
   "Move cursor up one line.
@@ -642,8 +618,7 @@ edt-previous-line
   (let ((beg (edt-current-line)))
     ;; We're deliberately using previous-line instead of forward-line.
     (with-no-warnings (previous-line num))
-    (edt-top-check beg num))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (edt-top-check beg num)))

 ;;;
@@ -653,8 +628,7 @@ edt-previous-line
 (defun edt-top ()
   "Move cursor to the beginning of buffer."
   (interactive)
-  (goto-char (point-min))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+  (goto-char (point-min)))
 
 ;;;
 ;;; BOTTOM
@@ -703,8 +677,7 @@ edt-find-forward
          (if (zerop (setq left (save-excursion (forward-line height))))
              (recenter top-margin)
            (recenter (- left bottom-up-margin)))
-       (and (> (point) bottom) (recenter bottom-margin)))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+       (and (> (point) bottom) (recenter bottom-margin))))))
 
 (defun edt-find-backward (&optional find)
   "Find first occurrence of a string in the backward direction and save it.
@@ -715,8 +688,7 @@ edt-find-backward
   (edt-with-position
    (if (search-backward edt-find-last-text)
        (edt-set-match))
-   (and (< (point) top) (recenter (min beg top-margin))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+   (and (< (point) top) (recenter (min beg top-margin)))))
 
 (defun edt-find ()
   "Find first occurrence of string in current direction and save it."
@@ -746,8 +718,7 @@ edt-find-next-forward
                (recenter (- left bottom-up-margin)))
            (and (> (point) bottom) (recenter bottom-margin))))
      (backward-char 1)
-     (error "Search failed: \"%s\"" edt-find-last-text)))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+     (error "Search failed: \"%s\"" edt-find-last-text))))
 
 (defun edt-find-next-backward ()
   "Find next occurrence of a string in backward direction."
@@ -756,8 +727,7 @@ edt-find-next-backward
    (if (not (search-backward edt-find-last-text nil t))
        (error "Search failed: \"%s\"" edt-find-last-text)
      (edt-set-match)
-     (and (< (point) top) (recenter (min beg top-margin)))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+     (and (< (point) top) (recenter (min beg top-margin))))))
 
 (defun edt-find-next ()
   "Find next occurrence of a string in current direction."
@@ -834,9 +804,7 @@ edt-select
 (defun edt-reset ()
   "Cancel text selection."
   (interactive)
-  (if (featurep 'emacs)
-      (deactivate-mark)
-    (zmacs-deactivate-region)))
+  (deactivate-mark))
 
 ;;;
 ;;; CUT
@@ -1050,8 +1018,7 @@ edt-advance
   (force-mode-line-update)
   (if (string-equal " *Minibuf"
                     (substring (buffer-name) 0 (min (length (buffer-name)) 9)))
-      (exit-minibuffer))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+      (exit-minibuffer)))

 ;;;
@@ -1066,8 +1033,7 @@ edt-backup
   (force-mode-line-update)
   (if (string-equal " *Minibuf"
                     (substring (buffer-name) 0 (min (length (buffer-name)) 9)))
-      (exit-minibuffer))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+      (exit-minibuffer)))

 ;;;
@@ -1117,14 +1083,11 @@ edt-define-key
 The current key definition is saved in `edt-last-replaced-key-definition'.
 Use `edt-restore-key' to restore last replaced key definition."
   (interactive)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t))
   (let (edt-function
 	edt-key-definition)
     (setq edt-key-definition
 	  (read-key-sequence "Press the key to be defined: "))
-    (if (if (featurep 'emacs)
-	    (string-equal "\C-m" edt-key-definition)
-	  (string-equal "\C-m" (events-to-keys edt-key-definition)))
+    (if (string-equal "\C-m" edt-key-definition)
         (message "Key not defined")
       (progn
 	(setq edt-function (read-command "Enter command name: "))
@@ -1202,8 +1165,6 @@ edt-bottom-check
 		 ;; subtract 1 from height because it includes mode line
 		 (difference (- height margin 1)))
     (cond ((> beg difference) (recenter beg))
-		  ((and (featurep 'xemacs) (> (+ beg lines 1) difference))
-		   (recenter (- margin)))
 		  ((> (+ beg lines) difference) (recenter (- margin))))))
 
 (defun edt-current-line nil
@@ -1289,8 +1250,7 @@ edt-sentence-forward
        (if (zerop (setq left (save-excursion (forward-line height))))
            (recenter top-margin)
          (recenter (- left bottom-up-margin)))
-     (and (> (point) bottom) (recenter bottom-margin))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+     (and (> (point) bottom) (recenter bottom-margin)))))
 
 (defun edt-sentence-backward (num)
   "Move backward to next sentence beginning.
@@ -1301,8 +1261,7 @@ edt-sentence-backward
    (if (eobp)
        (error "End of buffer")
      (backward-sentence num))
-   (and (< (point) top) (recenter (min beg top-margin))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+   (and (< (point) top) (recenter (min beg top-margin)))))
 
 (defun edt-sentence (num)
   "Move in current direction to next sentence.
@@ -1332,8 +1291,7 @@ edt-paragraph-forward
        (if (zerop (setq left (save-excursion (forward-line height))))
            (recenter top-margin)
          (recenter (- left bottom-up-margin)))
-     (and (> (point) bottom) (recenter bottom-margin))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+     (and (> (point) bottom) (recenter bottom-margin)))))
 
 (defun edt-paragraph-backward (num)
   "Move backward to beginning of paragraph.
@@ -1344,8 +1302,7 @@ edt-paragraph-backward
    (while (> num 0)
      (start-of-paragraph-text)
      (setq num (1- num)))
-   (and (< (point) top) (recenter (min beg top-margin))))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+   (and (< (point) top) (recenter (min beg top-margin)))))
 
 (defun edt-paragraph (num)
   "Move in current direction to next paragraph.
@@ -1363,24 +1320,18 @@ edt-restore-key
   "Restore last replaced key definition.
 Definition is stored in `edt-last-replaced-key-definition'."
   (interactive)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t))
   (if edt-last-replaced-key-definition
       (progn
         (let (edt-key-definition)
           (set 'edt-key-definition
                (read-key-sequence "Press the key to be restored: "))
-	  (if (if (featurep 'emacs)
-		  (string-equal "\C-m" edt-key-definition)
-		(string-equal "\C-m" (events-to-keys edt-key-definition)))
+	  (if (string-equal "\C-m" edt-key-definition)
               (message "Key not restored")
 	    (progn
 	      (define-key (current-global-map)
 		edt-key-definition edt-last-replaced-key-definition)
-	      (if (featurep 'emacs)
-		  (message "Key definition for %s has been restored."
-			   edt-key-definition)
-		(message "Key definition for %s has been restored."
-			 (events-to-keys edt-key-definition)))))))
+	      (message "Key definition for %s has been restored."
+		       edt-key-definition)))))
     (error "No replaced key definition to restore!")))
 
 ;;;
@@ -1392,8 +1343,7 @@ edt-window-top
   (interactive)
   (let ((start-column (current-column)))
     (move-to-window-line 0)
-    (move-to-column start-column))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (move-to-column start-column)))
 
 ;;;
 ;;; WINDOW BOTTOM
@@ -1404,8 +1354,7 @@ edt-window-bottom
   (interactive)
   (let ((start-column (current-column)))
     (move-to-window-line (- (window-height) 2))
-    (move-to-column start-column))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (move-to-column start-column)))
 
 ;;;
 ;;; SCROLL WINDOW LINE
@@ -1414,14 +1363,12 @@ edt-window-bottom
 (defun edt-scroll-window-forward-line ()
   "Move window forward one line leaving cursor at position in window."
   (interactive)
-  (scroll-up 1)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+  (scroll-up 1))
 
 (defun edt-scroll-window-backward-line ()
   "Move window backward one line leaving cursor at position in window."
   (interactive)
-  (scroll-down 1)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+  (scroll-down 1))
 
 (defun edt-scroll-line ()
   "Move window one line in current direction."
@@ -1467,8 +1414,7 @@ edt-scroll-window
 (defun edt-line-to-bottom-of-window ()
   "Move the current line to the bottom of the window."
   (interactive)
-  (recenter -1)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+  (recenter -1))
 
 ;;;
 ;;; LINE TO TOP OF WINDOW
@@ -1477,8 +1423,7 @@ edt-line-to-bottom-of-window
 (defun edt-line-to-top-of-window ()
   "Move the current line to the top of the window."
   (interactive)
-  (recenter 0)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+  (recenter 0))
 
 ;;;
 ;;; LINE TO MIDDLE OF WINDOW
@@ -1487,8 +1432,7 @@ edt-line-to-top-of-window
 (defun edt-line-to-middle-of-window ()
   "Move window so line with cursor is in the middle of the window."
   (interactive)
-  (recenter '(4))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+  (recenter '(4)))
 
 ;;;
 ;;; GOTO PERCENTAGE
@@ -1500,8 +1444,7 @@ edt-goto-percentage
   (interactive "NGoto-percentage: ")
   (if (or (> num 100) (< num 0))
       (error "Percentage %d out of range 0 < percent < 100" num)
-    (goto-char (/ (* (point-max) num) 100)))
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+    (goto-char (/ (* (point-max) num) 100))))
 
 ;;;
 ;;; FILL REGION
@@ -1673,7 +1616,6 @@ edt-eliminate-all-tabs
 (defun edt-display-the-time ()
   "Display the current time."
   (interactive)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t))
   (message "%s" (current-time-string)))
 
 ;;;
@@ -1701,9 +1643,7 @@ edt-remember
       (let (edt-key-definition)
 	(set 'edt-key-definition
 	     (read-key-sequence "Enter key for binding: "))
-	(if (if (featurep 'emacs)
-		(string-equal "\C-m" edt-key-definition)
-	      (string-equal "\C-m" (events-to-keys edt-key-definition)))
+	(if (string-equal "\C-m" edt-key-definition)
 	    (message "Key sequence not remembered")
 	  (progn
 	    (set 'edt-learn-macro-count (+ edt-learn-macro-count 1))
@@ -1753,8 +1693,7 @@ edt-split-window
   "Split current window and place cursor in the new window."
   (interactive)
   (split-window)
-  (other-window 1)
-  (if (featurep 'xemacs) (setq zmacs-region-stays t)))
+  (other-window 1))
 
 ;;;
 ;;; COPY RECTANGLE
@@ -1935,9 +1874,8 @@ edt-y-or-n-p
 (defun edt-load-keys (file)
   "Load the LK-201 key mapping FILE generated by edt-mapper.el.
 If FILE is nil, which is the normal case, try to load a default file.
-The default file names are based upon the window system, terminal
-type, and version of Emacs in use: GNU Emacs or XEmacs (aka Lucid
-Emacs).  If a default file does not exist, ask user if one should be
+The default file names are based upon the window system and terminal
+type.  If a default file does not exist, ask user if one should be
 created."
   (interactive "fKey definition file: ")
   (cond (file
@@ -1948,11 +1886,11 @@ edt-load-keys
 	 (setq file
 	       (expand-file-name
 		(concat
-		 "~/.edt-" edt-emacs-variant
+		 "~/.edt-gnu"
 		 (if edt-term (concat "-" edt-term))
 		 (if edt-xserver (concat "-" edt-xserver))
-		 (if edt-window-system
-		     (concat "-" (upcase (symbol-name edt-window-system))))
+		 (if window-system
+		     (concat "-" (upcase (symbol-name window-system))))
 		 "-keys")))))
   (cond ((file-readable-p file)
 	 (load-file file))
@@ -2002,15 +1940,14 @@ edt-emulation-on
   "Turn on EDT Emulation."
   (interactive)
   ;; If using pc window system (MS-DOS), set terminal type to pc.
-  ;; If not a window system (GNU) or a tty window system (XEmacs),
-  ;; get terminal type.
-  (if (eq edt-window-system 'pc)
+  ;; If not a window system, get terminal type.
+  (if (eq window-system 'pc)
       (setq edt-term "pc")
-    (if (or (not edt-window-system) (eq edt-window-system 'tty))
+    (if (not window-system)
 	(setq edt-term (getenv "TERM"))))
   ;; Look for a terminal configuration file for this terminal type.
   ;; Otherwise, load the user's custom configuration file.
-  (if (or (not edt-window-system) (memq edt-window-system '(pc tty)))
+  (if (or (not window-system) (memq window-system '(pc tty)))
       (progn
 	;; Load terminal-specific configuration file, if it exists for this
 	;; terminal type.  Note: All DEC VT series terminals are supported
@@ -2037,27 +1974,16 @@ edt-emulation-on
 	    (setq edt-term term))))
     (edt-load-keys nil))
   ;; Make highlighting of selected text work properly for EDT commands.
-  (if (featurep 'emacs)
-      (progn
-	(setq edt-orig-transient-mark-mode
-              (default-value 'transient-mark-mode))
-	(add-hook 'activate-mark-hook
-		  (function
-		   (lambda ()
-		     (edt-select-mode t))))
-	(add-hook 'deactivate-mark-hook
-		  (function
-		   (lambda ()
-		     (edt-select-mode nil)))))
-    (progn
-      (add-hook 'zmacs-activate-region-hook
-		(function
-		 (lambda ()
-		   (edt-select-mode t))))
-      (add-hook 'zmacs-deactivate-region-hook
-		(function
-		 (lambda ()
-		   (edt-select-mode nil))))))
+  (setq edt-orig-transient-mark-mode
+        (default-value 'transient-mark-mode))
+  (add-hook 'activate-mark-hook
+	    (function
+	     (lambda ()
+	       (edt-select-mode t))))
+  (add-hook 'deactivate-mark-hook
+	    (function
+	     (lambda ()
+	       (edt-select-mode nil))))
   ;;  Load user's EDT custom key bindings file, if it exists.
   ;;  Otherwise, use the default bindings.
   (if (load "edt-user" t t)
@@ -2074,8 +2000,7 @@ edt-emulation-off
   (setq edt-select-mode-current nil)
   (edt-reset)
   (force-mode-line-update t)
-  (if (featurep 'emacs)
-      (setq-default transient-mark-mode edt-orig-transient-mark-mode))
+  (setq-default transient-mark-mode edt-orig-transient-mark-mode)
   (message "Original key bindings restored; EDT Emulation disabled"))
 
 (defun edt-default-menu-bar-update-buffers ()
@@ -2103,9 +2028,7 @@ edt-default-emulation-setup
   ;; disturbing the original bindings in global-map.
   (fset 'edt-default-ESC-prefix (copy-keymap 'ESC-prefix))
   (setq edt-default-global-map (copy-keymap (current-global-map)))
-  (if (featurep 'emacs)
-      (define-key edt-default-global-map "\e" 'edt-default-ESC-prefix)
-    (define-key edt-default-global-map [escape] 'edt-default-ESC-prefix))
+  (define-key edt-default-global-map "\e" 'edt-default-ESC-prefix)
   (define-prefix-command 'edt-default-gold-map)
   (edt-setup-default-bindings)
   ;; If terminal has additional function keys, the terminal-specific
@@ -2141,9 +2064,7 @@ edt-user-emulation-setup
   ;; Setup user EDT global map by copying default EDT global map bindings.
   (fset 'edt-user-ESC-prefix (copy-keymap 'edt-default-ESC-prefix))
   (setq edt-user-global-map (copy-keymap edt-default-global-map))
-  (if (featurep 'emacs)
-      (define-key edt-user-global-map "\e" 'edt-user-ESC-prefix)
-    (define-key edt-user-global-map [escape] 'edt-user-ESC-prefix))
+  (define-key edt-user-global-map "\e" 'edt-user-ESC-prefix)
   ;; If terminal has additional function keys, the user's initialization
   ;; file can assign bindings to them via the optional
   ;; function edt-setup-extra-default-bindings.
@@ -2160,8 +2081,7 @@ edt-user-emulation-setup
 (defun edt-select-default-global-map()
   "Select default EDT emulation key bindings."
   (interactive)
-  (if (featurep 'emacs)
-    (transient-mark-mode 1))
+  (transient-mark-mode 1)
   (use-global-map edt-default-global-map)
   (if (not edt-keep-current-page-delimiter)
       (progn
@@ -2178,8 +2098,7 @@ edt-select-user-global-map
   (interactive)
   (if edt-user-map-configured
       (progn
-	(if (featurep 'emacs)
-	    (transient-mark-mode 1))
+	(transient-mark-mode 1)
         (use-global-map edt-user-global-map)
         (if (not edt-keep-current-page-delimiter)
             (progn
-- 
2.20.1