lisp/term/internal.el

   1 ;; internal.el -- setup support for PC keyboards and screens, internal terminal
   2
   3 ;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
   4
   5 ;; Author: Morten Welinder <terra@diku.dk>
   6 ;; Version: 1,02
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  22 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23 ;; ---------------------------------------------------------------------------
  24 ;; screen setup -- that's easy!
  25 (standard-display-8bit 127 254)
  26 ;; ---------------------------------------------------------------------------
  27 ;; keyboard setup -- that's simple!
  28 (set-input-mode nil nil 0)
  29 (define-key function-key-map [backspace] "\177") ; Normal behaviour for BS
  30 (define-key function-key-map [delete] "\C-d")    ; ... and Delete
  31 (define-key function-key-map [tab] [?\t])
  32 (define-key function-key-map [linefeed] [?\n])
  33 (define-key function-key-map [clear] [11])
  34 (define-key function-key-map [return] [13])
  35 (define-key function-key-map [escape] [?\e])
  36 (define-key function-key-map [M-backspace] [?\M-\d])
  37 (define-key function-key-map [M-delete] [?\M-\d])
  38 (define-key function-key-map [M-tab] [?\M-\t])
  39 (define-key function-key-map [M-linefeed] [?\M-\n])
  40 (define-key function-key-map [M-clear] [?\M-\013])
  41 (define-key function-key-map [M-return] [?\M-\015])
  42 (define-key function-key-map [M-escape] [?\M-\e])
  43 (put 'backspace 'ascii-character 127)
  44 (put 'delete 'ascii-character 127)
  45 (put 'tab 'ascii-character ?\t)
  46 (put 'linefeed 'ascii-character ?\n)
  47 (put 'clear 'ascii-character 12)
  48 (put 'return 'ascii-character 13)
  49 (put 'escape 'ascii-character ?\e)
  50 ;; ---------------------------------------------------------------------------
  51 ;; We want to do this when Emacs is started because it depends on the
  52 ;; country code.
  53 (let* ((i 128)
  54       (modify (function
  55                (lambda (ch sy)
  56                  (modify-syntax-entry ch sy text-mode-syntax-table)
  57                  (if (boundp 'tex-mode-syntax-table)
  58                      (modify-syntax-entry ch sy tex-mode-syntax-table))
  59                  (modify-syntax-entry ch sy (standard-syntax-table))
  60                  )))
  61       (downs (car (standard-case-table)))
  62       (ups (car (cdr (standard-case-table))))
  63       ;; The following are strings of letters, first lower then upper case.
  64       ;; This will look funny on terminals which display other code pages.
  65       (chars
  66        (cond
  67         ((= dos-codepage 850)
  68          "\87\80\81\9a\82\90\83¶\84\8e\85·\86\8fÆÇ µ\88Ò\89Ó\8aÔ\8bØ\8c×\8dÞ¡Ö\91\92\93â\94\99\95ã¢à\9b\9d\96ê£é\97ë\98Yìí¡I£é¤¥ÐÑçè")
  69         ((= dos-codepage 865)
  70          "\87\80\81\9a\82\90\83A\84\8e\85A\86\8f\88E\89E\8aE\8bI\8cI\8dI\91\92\93O\94\99\95O\96U£U\98Y\9b\9d A¡I¢O£U¤¥")
  71         ;; default is 437
  72         (t "\87\80\81\9a\82\90\83A\84\8e\85A\86\8f\88E\89E\8aE\8bI\8cI\8dI\91\92\93O\94\99\95O\96U£U\98Y A¡I¢O£U¤¥"))))
  73
  74   (while (< i 256)
  75     (funcall modify i "_")
  76     (setq i (1+ i)))
  77
  78   (setq i 0)
  79   (while (< i (length chars))
  80     (let ((ch1 (aref chars i))
  81           (ch2 (aref chars (1+ i))))
  82       (funcall modify ch1 "w")
  83       (funcall modify ch2 "w")
  84       (aset ups ch1 ch2)
  85       (if (> ch2 127)
  86           (aset downs ch2 ch1))
  87       (setq i (+ i 2))))
  88   (let ((table (list downs ups nil nil)))
  89     (save-excursion
  90       (mapcar (lambda (b) (progn (set-buffer b) (set-case-table table)))
  91               (buffer-list)))
  92     (set-standard-case-table table)))