Speed up `emacsclient -t' on xterms. (by suggestion of Dan Nicolaescu)

* lisp/term/xterm.el: Speed up load time by protecting
  `substitute-key-definition' and `define-key' calls against multiple
  execution.

* lisp/term/rxvt.el: Ditto.
* lisp/term/lk201.el: Ditto.

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-345

3 files changed, 368 insertions, 359 deletions

diff --git a/lisp/term/lk201.el b/lisp/term/lk201.el
index b207e13b0a5..e09b176ba8f 100644
--- a/lisp/term/lk201.el
+++ b/lisp/term/lk201.el
@@ -1,74 +1,87 @@
 ;; -*- no-byte-compile: t -*-
 ;; Define function key sequences for DEC terminals.
 
-;; XXX We need to find a way to have these define-keys be display-local. -- Lorentey
+(defvar lk201-function-map nil
+  "Function key definitions for lk201.")
 
-;; Termcap or terminfo should set these.
-;; (define-key function-key-map "\e[A" [up])
-;; (define-key function-key-map "\e[B" [down])
-;; (define-key function-key-map "\e[C" [right])
-;; (define-key function-key-map "\e[D" [left])
+;; Protect against reloads.
+(unless lk201-function-map
+  (setq lk201-function-map (make-sparse-keymap))
 
-(define-key function-key-map "\e[1~" [find])
-(define-key function-key-map "\e[2~" [insert])
-(define-key function-key-map "\e[3~" [delete])
-(define-key function-key-map "\e[4~" [select])
-(define-key function-key-map "\e[5~" [prior])
-(define-key function-key-map "\e[6~" [next])
-(define-key function-key-map "\e[11~" [f1])
-(define-key function-key-map "\e[12~" [f2])
-(define-key function-key-map "\e[13~" [f3])
-(define-key function-key-map "\e[14~" [f4])
-(define-key function-key-map "\e[15~" [f5])
-(define-key function-key-map "\e[17~" [f6])
-(define-key function-key-map "\e[18~" [f7])
-(define-key function-key-map "\e[19~" [f8])
-(define-key function-key-map "\e[20~" [f9])
-(define-key function-key-map "\e[21~" [f10])
-;; Customarily F11 is used as the ESC key.
-;; The file that includes this one, takes care of that.
-(define-key function-key-map "\e[23~" [f11])
-(define-key function-key-map "\e[24~" [f12])
-(define-key function-key-map "\e[25~" [f13])
-(define-key function-key-map "\e[26~" [f14])
-(define-key function-key-map "\e[28~" [help])
-(define-key function-key-map "\e[29~" [menu])
-(define-key function-key-map "\e[31~" [f17])
-(define-key function-key-map "\e[32~" [f18])
-(define-key function-key-map "\e[33~" [f19])
-(define-key function-key-map "\e[34~" [f20])
+  ;; XXX We need to find a way to have these define-keys be display-local. -- Lorentey
 
-;; Termcap or terminfo should set these.
-;; (define-key function-key-map "\eOA" [up])
-;; (define-key function-key-map "\eOB" [down])
-;; (define-key function-key-map "\eOC" [right])
-;; (define-key function-key-map "\eOD" [left])
+  ;; Termcap or terminfo should set these.
+  ;; (define-key function-key-map "\e[A" [up])
+  ;; (define-key function-key-map "\e[B" [down])
+  ;; (define-key function-key-map "\e[C" [right])
+  ;; (define-key function-key-map "\e[D" [left])
 
-;; Termcap or terminfo should set these, but doesn't properly.
-;; Termcap sets these to k1-k4, which get mapped to f1-f4 in term.c
-(define-key function-key-map "\eOP" [kp-f1])
-(define-key function-key-map "\eOQ" [kp-f2])
-(define-key function-key-map "\eOR" [kp-f3])
-(define-key function-key-map "\eOS" [kp-f4])
+  (define-key function-key-map "\e[1~" [find])
+  (define-key function-key-map "\e[2~" [insert])
+  (define-key function-key-map "\e[3~" [delete])
+  (define-key function-key-map "\e[4~" [select])
+  (define-key function-key-map "\e[5~" [prior])
+  (define-key function-key-map "\e[6~" [next])
+  (define-key function-key-map "\e[11~" [f1])
+  (define-key function-key-map "\e[12~" [f2])
+  (define-key function-key-map "\e[13~" [f3])
+  (define-key function-key-map "\e[14~" [f4])
+  (define-key function-key-map "\e[15~" [f5])
+  (define-key function-key-map "\e[17~" [f6])
+  (define-key function-key-map "\e[18~" [f7])
+  (define-key function-key-map "\e[19~" [f8])
+  (define-key function-key-map "\e[20~" [f9])
+  (define-key function-key-map "\e[21~" [f10])
+  ;; Customarily F11 is used as the ESC key.
+  ;; The file that includes this one, takes care of that.
+  (define-key function-key-map "\e[23~" [f11])
+  (define-key function-key-map "\e[24~" [f12])
+  (define-key function-key-map "\e[25~" [f13])
+  (define-key function-key-map "\e[26~" [f14])
+  (define-key function-key-map "\e[28~" [help])
+  (define-key function-key-map "\e[29~" [menu])
+  (define-key function-key-map "\e[31~" [f17])
+  (define-key function-key-map "\e[32~" [f18])
+  (define-key function-key-map "\e[33~" [f19])
+  (define-key function-key-map "\e[34~" [f20])
 
-(define-key function-key-map "\eOI" [kp-tab])
-(define-key function-key-map "\eOj" [kp-multiply])
-(define-key function-key-map "\eOk" [kp-add])
-(define-key function-key-map "\eOl" [kp-separator])
-(define-key function-key-map "\eOM" [kp-enter])
-(define-key function-key-map "\eOm" [kp-subtract])
-(define-key function-key-map "\eOn" [kp-decimal])
-(define-key function-key-map "\eOo" [kp-divide])
-(define-key function-key-map "\eOp" [kp-0])
-(define-key function-key-map "\eOq" [kp-1])
-(define-key function-key-map "\eOr" [kp-2])
-(define-key function-key-map "\eOs" [kp-3])
-(define-key function-key-map "\eOt" [kp-4])
-(define-key function-key-map "\eOu" [kp-5])
-(define-key function-key-map "\eOv" [kp-6])
-(define-key function-key-map "\eOw" [kp-7])
-(define-key function-key-map "\eOx" [kp-8])
-(define-key function-key-map "\eOy" [kp-9])
+  ;; Termcap or terminfo should set these.
+  ;; (define-key function-key-map "\eOA" [up])
+  ;; (define-key function-key-map "\eOB" [down])
+  ;; (define-key function-key-map "\eOC" [right])
+  ;; (define-key function-key-map "\eOD" [left])
+
+  ;; Termcap or terminfo should set these, but doesn't properly.
+  ;; Termcap sets these to k1-k4, which get mapped to f1-f4 in term.c
+  (define-key function-key-map "\eOP" [kp-f1])
+  (define-key function-key-map "\eOQ" [kp-f2])
+  (define-key function-key-map "\eOR" [kp-f3])
+  (define-key function-key-map "\eOS" [kp-f4])
+
+  (define-key function-key-map "\eOI" [kp-tab])
+  (define-key function-key-map "\eOj" [kp-multiply])
+  (define-key function-key-map "\eOk" [kp-add])
+  (define-key function-key-map "\eOl" [kp-separator])
+  (define-key function-key-map "\eOM" [kp-enter])
+  (define-key function-key-map "\eOm" [kp-subtract])
+  (define-key function-key-map "\eOn" [kp-decimal])
+  (define-key function-key-map "\eOo" [kp-divide])
+  (define-key function-key-map "\eOp" [kp-0])
+  (define-key function-key-map "\eOq" [kp-1])
+  (define-key function-key-map "\eOr" [kp-2])
+  (define-key function-key-map "\eOs" [kp-3])
+  (define-key function-key-map "\eOt" [kp-4])
+  (define-key function-key-map "\eOu" [kp-5])
+  (define-key function-key-map "\eOv" [kp-6])
+  (define-key function-key-map "\eOw" [kp-7])
+  (define-key function-key-map "\eOx" [kp-8])
+  (define-key function-key-map "\eOy" [kp-9])
+
+  ;; Use inheritance to let the main keymap override these defaults.
+  ;; This way we don't override terminfo-derived settings or settings
+  ;; made in the .emacs file.
+  (set-keymap-parent lk201-function-map (keymap-parent function-key-map))
+  (set-keymap-parent function-key-map lk201-function-map))
 
 ;;; arch-tag: 7ffb4444-6a23-43e1-b457-43cf4f673c0d
 ;;; lk201.el ends here
diff --git a/lisp/term/rxvt.el b/lisp/term/rxvt.el
index 7b53f098e82..180e0b40946 100644
--- a/lisp/term/rxvt.el
+++ b/lisp/term/rxvt.el
@@ -28,80 +28,78 @@
 
 (require 'server)
 
-(defvar rxvt-function-map (make-sparse-keymap)
-  "Function key rxvt-function-mapoverrides for rxvt.")
-
-;; Set up function-key-map entries that termcap and terminfo don't know.
-;; XXX We need to find a way to have these define-keys be display-local. -- Lorentey
-(define-key rxvt-function-map "\e[A" [up])
-(define-key rxvt-function-map "\e[B" [down])
-(define-key rxvt-function-map "\e[C" [right])
-(define-key rxvt-function-map "\e[D" [left])
-(define-key rxvt-function-map "\e[7~" [home])
-(define-key rxvt-function-map "\e[2~" [insert])
-(define-key rxvt-function-map "\e[3~" [delete])
-(define-key rxvt-function-map "\e[4~" [select])
-(define-key rxvt-function-map "\e[5~" [prior])
-(define-key rxvt-function-map "\e[6~" [next])
-(define-key rxvt-function-map "\e[11~" [f1])
-(define-key rxvt-function-map "\e[12~" [f2])
-(define-key rxvt-function-map "\e[13~" [f3])
-(define-key rxvt-function-map "\e[14~" [f4])
-(define-key rxvt-function-map "\e[15~" [f5])
-(define-key rxvt-function-map "\e[17~" [f6])
-(define-key rxvt-function-map "\e[18~" [f7])
-(define-key rxvt-function-map "\e[19~" [f8])
-(define-key rxvt-function-map "\e[20~" [f9])
-(define-key rxvt-function-map "\e[21~" [f10])
-(define-key rxvt-function-map "\e[23~" [f11])
-(define-key rxvt-function-map "\e[24~" [f12])
-(define-key rxvt-function-map "\e[29~" [print])
-
-(define-key rxvt-function-map "\e[11^" [C-f1])
-(define-key rxvt-function-map "\e[12^" [C-f2])
-(define-key rxvt-function-map "\e[13^" [C-f3])
-(define-key rxvt-function-map "\e[14^" [C-f4])
-(define-key rxvt-function-map "\e[15^" [C-f5])
-(define-key rxvt-function-map "\e[17^" [C-f6])
-(define-key rxvt-function-map "\e[18^" [C-f7])
-(define-key rxvt-function-map "\e[19^" [C-f8])
-(define-key rxvt-function-map "\e[20^" [C-f9])
-(define-key rxvt-function-map "\e[21^" [C-f10])
-(define-key rxvt-function-map "\e[23^" [C-f11])
-(define-key rxvt-function-map "\e[24^" [C-f12])
-
-(define-key rxvt-function-map "\e[29~" [print])
-
-(define-key rxvt-function-map "\e[2;2~" [S-insert])
-(define-key rxvt-function-map "\e[3$" [S-delete])
-
-(define-key rxvt-function-map "\e[2^" [C-insert])
-(define-key rxvt-function-map "\e[3^" [C-delete])
-(define-key rxvt-function-map "\e[5^" [C-prior])
-(define-key rxvt-function-map "\e[6^" [C-next])
-(define-key rxvt-function-map "\eOd" [C-left])
-(define-key rxvt-function-map "\eOc" [C-right])
-(define-key rxvt-function-map "\eOa" [C-up])
-(define-key rxvt-function-map "\eOb" [C-down])
-
-(define-key rxvt-function-map "\e[5$" [S-prior])
-(define-key rxvt-function-map "\e[6$" [S-next])
-(define-key rxvt-function-map "\e[8$" [S-end])
-(define-key rxvt-function-map "\e[7$" [S-home])
-(define-key rxvt-function-map "\e[d" [S-left])
-(define-key rxvt-function-map "\e[c" [S-right])
-(define-key rxvt-function-map "\e[a" [S-up])
-(define-key rxvt-function-map "\e[b" [S-down])
-
-;; Use inheritance to let the main keymap override those defaults.
-;; This way we don't override terminfo-derived settings or settings
-;; made in the .emacs file.
-(unless (let ((map (keymap-parent function-key-map))
-              found)
-          (while (and (not found) map)
-            (setq found (eq rxvt-function-map map)
-                  map (keymap-parent map)))
-          found)
+(defvar rxvt-function-map nil
+  "Function key overrides for rxvt.")
+
+;; Protect against reloads.
+(unless rxvt-function-map
+  (setq rxvt-function-map (make-sparse-keymap))
+
+  ;; Set up function-key-map entries that termcap and terminfo don't know.
+  ;; XXX We need to find a way to have these define-keys be display-local. -- Lorentey
+  (define-key rxvt-function-map "\e[A" [up])
+  (define-key rxvt-function-map "\e[B" [down])
+  (define-key rxvt-function-map "\e[C" [right])
+  (define-key rxvt-function-map "\e[D" [left])
+  (define-key rxvt-function-map "\e[7~" [home])
+  (define-key rxvt-function-map "\e[2~" [insert])
+  (define-key rxvt-function-map "\e[3~" [delete])
+  (define-key rxvt-function-map "\e[4~" [select])
+  (define-key rxvt-function-map "\e[5~" [prior])
+  (define-key rxvt-function-map "\e[6~" [next])
+  (define-key rxvt-function-map "\e[11~" [f1])
+  (define-key rxvt-function-map "\e[12~" [f2])
+  (define-key rxvt-function-map "\e[13~" [f3])
+  (define-key rxvt-function-map "\e[14~" [f4])
+  (define-key rxvt-function-map "\e[15~" [f5])
+  (define-key rxvt-function-map "\e[17~" [f6])
+  (define-key rxvt-function-map "\e[18~" [f7])
+  (define-key rxvt-function-map "\e[19~" [f8])
+  (define-key rxvt-function-map "\e[20~" [f9])
+  (define-key rxvt-function-map "\e[21~" [f10])
+  (define-key rxvt-function-map "\e[23~" [f11])
+  (define-key rxvt-function-map "\e[24~" [f12])
+  (define-key rxvt-function-map "\e[29~" [print])
+
+  (define-key rxvt-function-map "\e[11^" [C-f1])
+  (define-key rxvt-function-map "\e[12^" [C-f2])
+  (define-key rxvt-function-map "\e[13^" [C-f3])
+  (define-key rxvt-function-map "\e[14^" [C-f4])
+  (define-key rxvt-function-map "\e[15^" [C-f5])
+  (define-key rxvt-function-map "\e[17^" [C-f6])
+  (define-key rxvt-function-map "\e[18^" [C-f7])
+  (define-key rxvt-function-map "\e[19^" [C-f8])
+  (define-key rxvt-function-map "\e[20^" [C-f9])
+  (define-key rxvt-function-map "\e[21^" [C-f10])
+  (define-key rxvt-function-map "\e[23^" [C-f11])
+  (define-key rxvt-function-map "\e[24^" [C-f12])
+
+  (define-key rxvt-function-map "\e[29~" [print])
+
+  (define-key rxvt-function-map "\e[2;2~" [S-insert])
+  (define-key rxvt-function-map "\e[3$" [S-delete])
+
+  (define-key rxvt-function-map "\e[2^" [C-insert])
+  (define-key rxvt-function-map "\e[3^" [C-delete])
+  (define-key rxvt-function-map "\e[5^" [C-prior])
+  (define-key rxvt-function-map "\e[6^" [C-next])
+  (define-key rxvt-function-map "\eOd" [C-left])
+  (define-key rxvt-function-map "\eOc" [C-right])
+  (define-key rxvt-function-map "\eOa" [C-up])
+  (define-key rxvt-function-map "\eOb" [C-down])
+
+  (define-key rxvt-function-map "\e[5$" [S-prior])
+  (define-key rxvt-function-map "\e[6$" [S-next])
+  (define-key rxvt-function-map "\e[8$" [S-end])
+  (define-key rxvt-function-map "\e[7$" [S-home])
+  (define-key rxvt-function-map "\e[d" [S-left])
+  (define-key rxvt-function-map "\e[c" [S-right])
+  (define-key rxvt-function-map "\e[a" [S-up])
+  (define-key rxvt-function-map "\e[b" [S-down])
+
+  ;; Use inheritance to let the main keymap override those defaults.
+  ;; This way we don't override terminfo-derived settings or settings
+  ;; made in the .emacs file.
   (set-keymap-parent rxvt-function-map (keymap-parent function-key-map))
   (set-keymap-parent function-key-map rxvt-function-map))
 
diff --git a/lisp/term/xterm.el b/lisp/term/xterm.el
index d711754e646..f4cdd26a438 100644
--- a/lisp/term/xterm.el
+++ b/lisp/term/xterm.el
@@ -28,230 +28,228 @@
 
 (require 'server)
 
-(defvar xterm-function-map (make-sparse-keymap)
+(defvar xterm-function-map nil
   "Function key map overrides for xterm.")
 
-;; XXX We need to find a way to have these definitions be display-local. -- Lorentey
-
-;;; The terminal intialization C code file might have initialized
-;;; function keys F13->F60 from the termcap/terminfo information.  On
-;;; a PC-style keyboard these keys correspond to
-;;; MODIFIER-FUNCTION_KEY, where modifier is S-, C, A-, C-S-.  The
-;;; code here subsitutes the corresponding defintions in
-;;; function-key-map. This substitution is needed because if a key
-;;; definition if found in function-key-map, there are no further
-;;; lookups in other keymaps.
-(substitute-key-definition [f13] [S-f1] function-key-map)
-(substitute-key-definition [f14] [S-f2] function-key-map)
-(substitute-key-definition [f15] [S-f3] function-key-map)
-(substitute-key-definition [f16] [S-f4] function-key-map)
-(substitute-key-definition [f17] [S-f5] function-key-map)
-(substitute-key-definition [f18] [S-f6] function-key-map)
-(substitute-key-definition [f19] [S-f7] function-key-map)
-(substitute-key-definition [f20] [S-f8] function-key-map)
-(substitute-key-definition [f21] [S-f9] function-key-map)
-(substitute-key-definition [f22] [S-f10] function-key-map)
-(substitute-key-definition [f23] [S-f11] function-key-map)
-(substitute-key-definition [f24] [S-f12] function-key-map)
-
-(substitute-key-definition [f25] [C-f1] function-key-map)
-(substitute-key-definition [f26] [C-f2] function-key-map)
-(substitute-key-definition [f27] [C-f3] function-key-map)
-(substitute-key-definition [f28] [C-f4] function-key-map)
-(substitute-key-definition [f29] [C-f5] function-key-map)
-(substitute-key-definition [f30] [C-f6] function-key-map)
-(substitute-key-definition [f31] [C-f7] function-key-map)
-(substitute-key-definition [f32] [C-f8] function-key-map)
-(substitute-key-definition [f33] [C-f9] function-key-map)
-(substitute-key-definition [f34] [C-f10] function-key-map)
-(substitute-key-definition [f35] [C-f11] function-key-map)
-(substitute-key-definition [f36] [C-f12] function-key-map)
-
-(substitute-key-definition [f37] [C-S-f1] function-key-map)
-(substitute-key-definition [f38] [C-S-f2] function-key-map)
-(substitute-key-definition [f39] [C-S-f3] function-key-map)
-(substitute-key-definition [f40] [C-S-f4] function-key-map)
-(substitute-key-definition [f41] [C-S-f5] function-key-map)
-(substitute-key-definition [f42] [C-S-f6] function-key-map)
-(substitute-key-definition [f43] [C-S-f7] function-key-map)
-(substitute-key-definition [f44] [C-S-f8] function-key-map)
-(substitute-key-definition [f45] [C-S-f9] function-key-map)
-(substitute-key-definition [f46] [C-S-f10] function-key-map)
-(substitute-key-definition [f47] [C-S-f11] function-key-map)
-(substitute-key-definition [f48] [C-S-f12] function-key-map)
-
-(substitute-key-definition [f49] [A-f1] function-key-map)
-(substitute-key-definition [f50] [A-f2] function-key-map)
-(substitute-key-definition [f51] [A-f3] function-key-map)
-(substitute-key-definition [f52] [A-f4] function-key-map)
-(substitute-key-definition [f53] [A-f5] function-key-map)
-(substitute-key-definition [f54] [A-f6] function-key-map)
-(substitute-key-definition [f55] [A-f7] function-key-map)
-(substitute-key-definition [f56] [A-f8] function-key-map)
-(substitute-key-definition [f57] [A-f9] function-key-map)
-(substitute-key-definition [f58] [A-f10] function-key-map)
-(substitute-key-definition [f59] [A-f11] function-key-map)
-(substitute-key-definition [f60] [A-f12] function-key-map)
-
-(define-key xterm-function-map "\e[A" [up])
-(define-key xterm-function-map "\e[B" [down])
-(define-key xterm-function-map "\e[C" [right])
-(define-key xterm-function-map "\e[D" [left])
-(define-key xterm-function-map "\e[1~" [home])
-(define-key xterm-function-map "\e[2~" [insert])
-(define-key xterm-function-map "\e[3~" [delete])
-(define-key xterm-function-map "\e[4~" [select])
-(define-key xterm-function-map "\e[5~" [prior])
-(define-key xterm-function-map "\e[6~" [next])
-(define-key xterm-function-map "\e[11~" [f1])
-(define-key xterm-function-map "\e[12~" [f2])
-(define-key xterm-function-map "\e[13~" [f3])
-(define-key xterm-function-map "\e[14~" [f4])
-(define-key xterm-function-map "\e[15~" [f5])
-(define-key xterm-function-map "\e[17~" [f6])
-(define-key xterm-function-map "\e[18~" [f7])
-(define-key xterm-function-map "\e[19~" [f8])
-(define-key xterm-function-map "\e[20~" [f9])
-(define-key xterm-function-map "\e[21~" [f10])
-(define-key xterm-function-map "\e[23~" [f11])
-(define-key xterm-function-map "\e[24~" [f12])
-(define-key xterm-function-map "\e[29~" [print])
-
-(define-key xterm-function-map "\eOP" [f1])
-(define-key xterm-function-map "\eOQ" [f2])
-(define-key xterm-function-map "\eOR" [f3])
-(define-key xterm-function-map "\eOS" [f4])
-
-(define-key xterm-function-map "\eO2P" [S-f1])
-(define-key xterm-function-map "\eO2Q" [S-f2])
-(define-key xterm-function-map "\eO2R" [S-f3])
-(define-key xterm-function-map "\eO2S" [S-f4])
-(define-key xterm-function-map "\e[15;2~" [S-f5])
-(define-key xterm-function-map "\e[17;2~" [S-f6])
-(define-key xterm-function-map "\e[18;2~" [S-f7])
-(define-key xterm-function-map "\e[19;2~" [S-f8])
-(define-key xterm-function-map "\e[20;2~" [S-f9])
-(define-key xterm-function-map "\e[21;2~" [S-f10])
-(define-key xterm-function-map "\e[23;2~" [S-f11])
-(define-key xterm-function-map "\e[24;2~" [S-f12])
-
-(define-key xterm-function-map "\eO5P" [C-f1])
-(define-key xterm-function-map "\eO5Q" [C-f2])
-(define-key xterm-function-map "\eO5R" [C-f3])
-(define-key xterm-function-map "\eO5S" [C-f4])
-(define-key xterm-function-map "\e[15;5~" [C-f5])
-(define-key xterm-function-map "\e[17;5~" [C-f6])
-(define-key xterm-function-map "\e[18;5~" [C-f7])
-(define-key xterm-function-map "\e[19;5~" [C-f8])
-(define-key xterm-function-map "\e[20;5~" [C-f9])
-(define-key xterm-function-map "\e[21;5~" [C-f10])
-(define-key xterm-function-map "\e[23;5~" [C-f11])
-(define-key xterm-function-map "\e[24;5~" [C-f12])
-
-(define-key xterm-function-map "\eO6P" [C-S-f1])
-(define-key xterm-function-map "\eO6Q" [C-S-f2])
-(define-key xterm-function-map "\eO6R" [C-S-f3])
-(define-key xterm-function-map "\eO6S" [C-S-f4])
-(define-key xterm-function-map "\e[15;6~" [C-S-f5])
-(define-key xterm-function-map "\e[17;6~" [C-S-f6])
-(define-key xterm-function-map "\e[18;6~" [C-S-f7])
-(define-key xterm-function-map "\e[19;6~" [C-S-f8])
-(define-key xterm-function-map "\e[20;6~" [C-S-f9])
-(define-key xterm-function-map "\e[21;6~" [C-S-f10])
-(define-key xterm-function-map "\e[23;6~" [C-S-f11])
-(define-key xterm-function-map "\e[24;6~" [C-S-f12])
-
-(define-key xterm-function-map "\eO3P" [A-f1])
-(define-key xterm-function-map "\eO3Q" [A-f2])
-(define-key xterm-function-map "\eO3R" [A-f3])
-(define-key xterm-function-map "\eO3S" [A-f4])
-(define-key xterm-function-map "\e[15;3~" [A-f5])
-(define-key xterm-function-map "\e[17;3~" [A-f6])
-(define-key xterm-function-map "\e[18;3~" [A-f7])
-(define-key xterm-function-map "\e[19;3~" [A-f8])
-(define-key xterm-function-map "\e[20;3~" [A-f9])
-(define-key xterm-function-map "\e[21;3~" [A-f10])
-(define-key xterm-function-map "\e[23;3~" [A-f11])
-(define-key xterm-function-map "\e[24;3~" [A-f12])
-
-(define-key xterm-function-map "\e[1;2A" [S-up])
-(define-key xterm-function-map "\e[1;2B" [S-down])
-(define-key xterm-function-map "\e[1;2C" [S-right])
-(define-key xterm-function-map "\e[1;2D" [S-left])
-(define-key xterm-function-map "\e[1;2F" [S-end])
-(define-key xterm-function-map "\e[1;2H" [S-home])
-
-(define-key xterm-function-map "\e[1;5A" [C-up])
-(define-key xterm-function-map "\e[1;5B" [C-down])
-(define-key xterm-function-map "\e[1;5C" [C-right])
-(define-key xterm-function-map "\e[1;5D" [C-left])
-(define-key xterm-function-map "\e[1;5F" [C-end])
-(define-key xterm-function-map "\e[1;5H" [C-home])
-
-(define-key xterm-function-map "\e[1;6A" [C-S-up])
-(define-key xterm-function-map "\e[1;6B" [C-S-down])
-(define-key xterm-function-map "\e[1;6C" [C-S-right])
-(define-key xterm-function-map "\e[1;6D" [C-S-left])
-(define-key xterm-function-map "\e[1;6F" [C-S-end])
-(define-key xterm-function-map "\e[1;6H" [C-S-home])
-
-(define-key xterm-function-map "\e[1;3A" [A-up])
-(define-key xterm-function-map "\e[1;3B" [A-down])
-(define-key xterm-function-map "\e[1;3C" [A-right])
-(define-key xterm-function-map "\e[1;3D" [A-left])
-(define-key xterm-function-map "\e[1;3F" [A-end])
-(define-key xterm-function-map "\e[1;3H" [A-home])
-
-(define-key xterm-function-map "\e[2;2~" [S-insert])
-(define-key xterm-function-map "\e[3;2~" [S-delete])
-(define-key xterm-function-map "\e[5;2~" [S-prior])
-(define-key xterm-function-map "\e[6;2~" [S-next])
-
-(define-key xterm-function-map "\e[2;5~" [C-insert])
-(define-key xterm-function-map "\e[3;5~" [C-delete])
-(define-key xterm-function-map "\e[5;5~" [C-prior])
-(define-key xterm-function-map "\e[6;5~" [C-next])
-
-(define-key xterm-function-map "\e[2;6~" [C-S-insert])
-(define-key xterm-function-map "\e[3;6~" [C-S-delete])
-(define-key xterm-function-map "\e[5;6~" [C-S-prior])
-(define-key xterm-function-map "\e[6;6~" [C-S-next])
-
-(define-key xterm-function-map "\e[2;3~" [A-insert])
-(define-key xterm-function-map "\e[3;3~" [A-delete])
-(define-key xterm-function-map "\e[5;3~" [A-prior])
-(define-key xterm-function-map "\e[6;3~" [A-next])
-
-(define-key xterm-function-map "\eOA" [up])
-(define-key xterm-function-map "\eOB" [down])
-(define-key xterm-function-map "\eOC" [right])
-(define-key xterm-function-map "\eOD" [left])
-(define-key xterm-function-map "\eOF" [end])
-(define-key xterm-function-map "\eOH" [home])
-
-(define-key xterm-function-map "\eO2A" [S-up])
-(define-key xterm-function-map "\eO2B" [S-down])
-(define-key xterm-function-map "\eO2C" [S-right])
-(define-key xterm-function-map "\eO2D" [S-left])
-(define-key xterm-function-map "\eO2F" [S-end])
-(define-key xterm-function-map "\eO2H" [S-home])
-
-(define-key xterm-function-map "\eO5A" [C-up])
-(define-key xterm-function-map "\eO5B" [C-down])
-(define-key xterm-function-map "\eO5C" [C-right])
-(define-key xterm-function-map "\eO5D" [C-left])
-(define-key xterm-function-map "\eO5F" [C-end])
-(define-key xterm-function-map "\eO5H" [C-home])
-
-;; Use inheritance to let the main keymap override those defaults.
-;; This way we don't override terminfo-derived settings or settings
-;; made in the .emacs file.
-(unless (let ((map (keymap-parent function-key-map))
-              found)
-          (while (and (not found) map)
-            (setq found (eq xterm-function-map map)
-                  map (keymap-parent map)))
-          found)
+;; Protect against reloads.
+(unless xterm-function-map
+  (setq xterm-function-map (make-sparse-keymap))
+
+  ;; XXX We need to find a way to make these definitions display-local. -- Lorentey
+
+  ;; The terminal intialization C code file might have initialized
+  ;; function keys F13->F60 from the termcap/terminfo information.  On
+  ;; a PC-style keyboard these keys correspond to
+  ;; MODIFIER-FUNCTION_KEY, where modifier is S-, C, A-, C-S-.  The
+  ;; code here subsitutes the corresponding defintions in
+  ;; function-key-map. This substitution is needed because if a key
+  ;; definition if found in function-key-map, there are no further
+  ;; lookups in other keymaps.
+  (substitute-key-definition [f13] [S-f1] function-key-map)
+  (substitute-key-definition [f14] [S-f2] function-key-map)
+  (substitute-key-definition [f15] [S-f3] function-key-map)
+  (substitute-key-definition [f16] [S-f4] function-key-map)
+  (substitute-key-definition [f17] [S-f5] function-key-map)
+  (substitute-key-definition [f18] [S-f6] function-key-map)
+  (substitute-key-definition [f19] [S-f7] function-key-map)
+  (substitute-key-definition [f20] [S-f8] function-key-map)
+  (substitute-key-definition [f21] [S-f9] function-key-map)
+  (substitute-key-definition [f22] [S-f10] function-key-map)
+  (substitute-key-definition [f23] [S-f11] function-key-map)
+  (substitute-key-definition [f24] [S-f12] function-key-map)
+
+  (substitute-key-definition [f25] [C-f1] function-key-map)
+  (substitute-key-definition [f26] [C-f2] function-key-map)
+  (substitute-key-definition [f27] [C-f3] function-key-map)
+  (substitute-key-definition [f28] [C-f4] function-key-map)
+  (substitute-key-definition [f29] [C-f5] function-key-map)
+  (substitute-key-definition [f30] [C-f6] function-key-map)
+  (substitute-key-definition [f31] [C-f7] function-key-map)
+  (substitute-key-definition [f32] [C-f8] function-key-map)
+  (substitute-key-definition [f33] [C-f9] function-key-map)
+  (substitute-key-definition [f34] [C-f10] function-key-map)
+  (substitute-key-definition [f35] [C-f11] function-key-map)
+  (substitute-key-definition [f36] [C-f12] function-key-map)
+
+  (substitute-key-definition [f37] [C-S-f1] function-key-map)
+  (substitute-key-definition [f38] [C-S-f2] function-key-map)
+  (substitute-key-definition [f39] [C-S-f3] function-key-map)
+  (substitute-key-definition [f40] [C-S-f4] function-key-map)
+  (substitute-key-definition [f41] [C-S-f5] function-key-map)
+  (substitute-key-definition [f42] [C-S-f6] function-key-map)
+  (substitute-key-definition [f43] [C-S-f7] function-key-map)
+  (substitute-key-definition [f44] [C-S-f8] function-key-map)
+  (substitute-key-definition [f45] [C-S-f9] function-key-map)
+  (substitute-key-definition [f46] [C-S-f10] function-key-map)
+  (substitute-key-definition [f47] [C-S-f11] function-key-map)
+  (substitute-key-definition [f48] [C-S-f12] function-key-map)
+
+  (substitute-key-definition [f49] [A-f1] function-key-map)
+  (substitute-key-definition [f50] [A-f2] function-key-map)
+  (substitute-key-definition [f51] [A-f3] function-key-map)
+  (substitute-key-definition [f52] [A-f4] function-key-map)
+  (substitute-key-definition [f53] [A-f5] function-key-map)
+  (substitute-key-definition [f54] [A-f6] function-key-map)
+  (substitute-key-definition [f55] [A-f7] function-key-map)
+  (substitute-key-definition [f56] [A-f8] function-key-map)
+  (substitute-key-definition [f57] [A-f9] function-key-map)
+  (substitute-key-definition [f58] [A-f10] function-key-map)
+  (substitute-key-definition [f59] [A-f11] function-key-map)
+  (substitute-key-definition [f60] [A-f12] function-key-map)
+
+  (define-key xterm-function-map "\e[A" [up])
+  (define-key xterm-function-map "\e[B" [down])
+  (define-key xterm-function-map "\e[C" [right])
+  (define-key xterm-function-map "\e[D" [left])
+  (define-key xterm-function-map "\e[1~" [home])
+  (define-key xterm-function-map "\e[2~" [insert])
+  (define-key xterm-function-map "\e[3~" [delete])
+  (define-key xterm-function-map "\e[4~" [select])
+  (define-key xterm-function-map "\e[5~" [prior])
+  (define-key xterm-function-map "\e[6~" [next])
+  (define-key xterm-function-map "\e[11~" [f1])
+  (define-key xterm-function-map "\e[12~" [f2])
+  (define-key xterm-function-map "\e[13~" [f3])
+  (define-key xterm-function-map "\e[14~" [f4])
+  (define-key xterm-function-map "\e[15~" [f5])
+  (define-key xterm-function-map "\e[17~" [f6])
+  (define-key xterm-function-map "\e[18~" [f7])
+  (define-key xterm-function-map "\e[19~" [f8])
+  (define-key xterm-function-map "\e[20~" [f9])
+  (define-key xterm-function-map "\e[21~" [f10])
+  (define-key xterm-function-map "\e[23~" [f11])
+  (define-key xterm-function-map "\e[24~" [f12])
+  (define-key xterm-function-map "\e[29~" [print])
+
+  (define-key xterm-function-map "\eOP" [f1])
+  (define-key xterm-function-map "\eOQ" [f2])
+  (define-key xterm-function-map "\eOR" [f3])
+  (define-key xterm-function-map "\eOS" [f4])
+
+  (define-key xterm-function-map "\eO2P" [S-f1])
+  (define-key xterm-function-map "\eO2Q" [S-f2])
+  (define-key xterm-function-map "\eO2R" [S-f3])
+  (define-key xterm-function-map "\eO2S" [S-f4])
+  (define-key xterm-function-map "\e[15;2~" [S-f5])
+  (define-key xterm-function-map "\e[17;2~" [S-f6])
+  (define-key xterm-function-map "\e[18;2~" [S-f7])
+  (define-key xterm-function-map "\e[19;2~" [S-f8])
+  (define-key xterm-function-map "\e[20;2~" [S-f9])
+  (define-key xterm-function-map "\e[21;2~" [S-f10])
+  (define-key xterm-function-map "\e[23;2~" [S-f11])
+  (define-key xterm-function-map "\e[24;2~" [S-f12])
+
+  (define-key xterm-function-map "\eO5P" [C-f1])
+  (define-key xterm-function-map "\eO5Q" [C-f2])
+  (define-key xterm-function-map "\eO5R" [C-f3])
+  (define-key xterm-function-map "\eO5S" [C-f4])
+  (define-key xterm-function-map "\e[15;5~" [C-f5])
+  (define-key xterm-function-map "\e[17;5~" [C-f6])
+  (define-key xterm-function-map "\e[18;5~" [C-f7])
+  (define-key xterm-function-map "\e[19;5~" [C-f8])
+  (define-key xterm-function-map "\e[20;5~" [C-f9])
+  (define-key xterm-function-map "\e[21;5~" [C-f10])
+  (define-key xterm-function-map "\e[23;5~" [C-f11])
+  (define-key xterm-function-map "\e[24;5~" [C-f12])
+
+  (define-key xterm-function-map "\eO6P" [C-S-f1])
+  (define-key xterm-function-map "\eO6Q" [C-S-f2])
+  (define-key xterm-function-map "\eO6R" [C-S-f3])
+  (define-key xterm-function-map "\eO6S" [C-S-f4])
+  (define-key xterm-function-map "\e[15;6~" [C-S-f5])
+  (define-key xterm-function-map "\e[17;6~" [C-S-f6])
+  (define-key xterm-function-map "\e[18;6~" [C-S-f7])
+  (define-key xterm-function-map "\e[19;6~" [C-S-f8])
+  (define-key xterm-function-map "\e[20;6~" [C-S-f9])
+  (define-key xterm-function-map "\e[21;6~" [C-S-f10])
+  (define-key xterm-function-map "\e[23;6~" [C-S-f11])
+  (define-key xterm-function-map "\e[24;6~" [C-S-f12])
+
+  (define-key xterm-function-map "\eO3P" [A-f1])
+  (define-key xterm-function-map "\eO3Q" [A-f2])
+  (define-key xterm-function-map "\eO3R" [A-f3])
+  (define-key xterm-function-map "\eO3S" [A-f4])
+  (define-key xterm-function-map "\e[15;3~" [A-f5])
+  (define-key xterm-function-map "\e[17;3~" [A-f6])
+  (define-key xterm-function-map "\e[18;3~" [A-f7])
+  (define-key xterm-function-map "\e[19;3~" [A-f8])
+  (define-key xterm-function-map "\e[20;3~" [A-f9])
+  (define-key xterm-function-map "\e[21;3~" [A-f10])
+  (define-key xterm-function-map "\e[23;3~" [A-f11])
+  (define-key xterm-function-map "\e[24;3~" [A-f12])
+
+  (define-key xterm-function-map "\e[1;2A" [S-up])
+  (define-key xterm-function-map "\e[1;2B" [S-down])
+  (define-key xterm-function-map "\e[1;2C" [S-right])
+  (define-key xterm-function-map "\e[1;2D" [S-left])
+  (define-key xterm-function-map "\e[1;2F" [S-end])
+  (define-key xterm-function-map "\e[1;2H" [S-home])
+
+  (define-key xterm-function-map "\e[1;5A" [C-up])
+  (define-key xterm-function-map "\e[1;5B" [C-down])
+  (define-key xterm-function-map "\e[1;5C" [C-right])
+  (define-key xterm-function-map "\e[1;5D" [C-left])
+  (define-key xterm-function-map "\e[1;5F" [C-end])
+  (define-key xterm-function-map "\e[1;5H" [C-home])
+
+  (define-key xterm-function-map "\e[1;6A" [C-S-up])
+  (define-key xterm-function-map "\e[1;6B" [C-S-down])
+  (define-key xterm-function-map "\e[1;6C" [C-S-right])
+  (define-key xterm-function-map "\e[1;6D" [C-S-left])
+  (define-key xterm-function-map "\e[1;6F" [C-S-end])
+  (define-key xterm-function-map "\e[1;6H" [C-S-home])
+
+  (define-key xterm-function-map "\e[1;3A" [A-up])
+  (define-key xterm-function-map "\e[1;3B" [A-down])
+  (define-key xterm-function-map "\e[1;3C" [A-right])
+  (define-key xterm-function-map "\e[1;3D" [A-left])
+  (define-key xterm-function-map "\e[1;3F" [A-end])
+  (define-key xterm-function-map "\e[1;3H" [A-home])
+
+  (define-key xterm-function-map "\e[2;2~" [S-insert])
+  (define-key xterm-function-map "\e[3;2~" [S-delete])
+  (define-key xterm-function-map "\e[5;2~" [S-prior])
+  (define-key xterm-function-map "\e[6;2~" [S-next])
+
+  (define-key xterm-function-map "\e[2;5~" [C-insert])
+  (define-key xterm-function-map "\e[3;5~" [C-delete])
+  (define-key xterm-function-map "\e[5;5~" [C-prior])
+  (define-key xterm-function-map "\e[6;5~" [C-next])
+
+  (define-key xterm-function-map "\e[2;6~" [C-S-insert])
+  (define-key xterm-function-map "\e[3;6~" [C-S-delete])
+  (define-key xterm-function-map "\e[5;6~" [C-S-prior])
+  (define-key xterm-function-map "\e[6;6~" [C-S-next])
+
+  (define-key xterm-function-map "\e[2;3~" [A-insert])
+  (define-key xterm-function-map "\e[3;3~" [A-delete])
+  (define-key xterm-function-map "\e[5;3~" [A-prior])
+  (define-key xterm-function-map "\e[6;3~" [A-next])
+
+  (define-key xterm-function-map "\eOA" [up])
+  (define-key xterm-function-map "\eOB" [down])
+  (define-key xterm-function-map "\eOC" [right])
+  (define-key xterm-function-map "\eOD" [left])
+  (define-key xterm-function-map "\eOF" [end])
+  (define-key xterm-function-map "\eOH" [home])
+
+  (define-key xterm-function-map "\eO2A" [S-up])
+  (define-key xterm-function-map "\eO2B" [S-down])
+  (define-key xterm-function-map "\eO2C" [S-right])
+  (define-key xterm-function-map "\eO2D" [S-left])
+  (define-key xterm-function-map "\eO2F" [S-end])
+  (define-key xterm-function-map "\eO2H" [S-home])
+
+  (define-key xterm-function-map "\eO5A" [C-up])
+  (define-key xterm-function-map "\eO5B" [C-down])
+  (define-key xterm-function-map "\eO5C" [C-right])
+  (define-key xterm-function-map "\eO5D" [C-left])
+  (define-key xterm-function-map "\eO5F" [C-end])
+  (define-key xterm-function-map "\eO5H" [C-home])
+
+  ;; Use inheritance to let the main keymap override those defaults.
+  ;; This way we don't override terminfo-derived settings or settings
+  ;; made in the .emacs file.
   (set-keymap-parent xterm-function-map (keymap-parent function-key-map))
   (set-keymap-parent function-key-map xterm-function-map))