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bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
54 lines
2.0 KiB
EmacsLisp
54 lines
2.0 KiB
EmacsLisp
;;; vt100.el --- define VT100 function key sequences in function-key-map
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;; Copyright (C) 1989, 1993, 2001-2017 Free Software Foundation, Inc.
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;; Author: FSF
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;; Keywords: terminals
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Handles all VT100 clones, including the Apollo terminal. Also handles
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;; the VT200 --- its PF- and arrow- keys are different, but all those
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;; are really set up by the terminal initialization code, which mines them
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;; out of termcap. This package is here to define the keypad comma, dash
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;; and period (which aren't in termcap's repertoire) and the function for
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;; changing from 80 to 132 columns & vv.
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;;; Code:
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;; Set up function-key-map entries that termcap and terminfo don't know.
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(defun terminal-init-vt100 ()
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"Terminal initialization function for vt100."
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(tty-run-terminal-initialization (selected-frame) "lk201"))
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;;; Controlling the screen width.
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(define-minor-mode vt100-wide-mode
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"Toggle 132/80 column mode for vt100s.
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With a prefix argument ARG, switch to 132-column mode if ARG is
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positive, and 80-column mode otherwise. If called from Lisp,
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switch to 132-column mode if ARG is omitted or nil."
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:global t :init-value (= (frame-width) 132)
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:group 'terminals
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(send-string-to-terminal (if vt100-wide-mode "\e[?3h" "\e[?3l"))
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(set-frame-width terminal-frame (if vt100-wide-mode 132 80)))
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(provide 'term/vt100)
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;;; vt100.el ends here
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