Geoffm@AFSC-HQ.ARPA.UUCP (02/07/87)
Does GNU Emacs support vt100 cursor keys and if so how? geoff -------
merlin@hqda-ai.UUCP (02/07/87)
In article <8702070041.AA09816@EDDIE.MIT.EDU>, Geoffm@AFSC-HQ.ARPA (Geoff Mulligan, USAFA) writes: > Does GNU Emacs support vt100 cursor keys and if so how? > Terminal arrow keys are supported in v18. On startup, GNU consults the environment for the terminal type. It then looks in the lisp library directories for the file "term/vt100.el", or the .elc compiled version. This file defines several keymaps, which are used to map the key functions. The vt100 key sequences all start with ESC-[, which is a legitimate emacs command. For this reason, although the arrow keymaps are defined, they are not activated. To turn them on, give the command M-x enable-arrow-keys -- David S. Hayes, The Merlin of Avalon PhoneNet: (202) 694-6900 ARPA: merlin%hqda-ai.uucp@smoke.brl.mil UUCP: ...!seismo!sundc!hqda-ai!merlin
earleh@dartvax.UUCP (02/08/87)
In article <265@hqda-ai.UUCP>, merlin@hqda-ai.UUCP (David S. Hayes) writes: > key functions. The vt100 key sequences all start with ESC-[, Sorry to be picky, but some of them start with ESC-O. This seems to depend on whether the terminal is in "ANSI" mode or "VT100" mode. (That's an "Oh", not a "zero".) I am no expert on the subject, but I think the sequence usually used by editors to "turn on" the keypad ("\E=") puts it in ANSI mode, and then the sequences all start with ESC-O.
maddox@ernie.Berkeley.EDU.UUCP (02/10/87)
In article <5659@dartvax.UUCP> earleh@dartvax.UUCP (Earle R. Horton) writes: > Sorry to be picky, but some of them start with ESC-O. This seems to >depend on whether the terminal is in "ANSI" mode or "VT100" mode. (That's >an "Oh", not a "zero".) Uh, the VT100 has two modes: ANSI and VT52. The ANSI mode is the one with all the cute VT100 functions. (I'm at the moment using a VT100 emulator I wrote in FORTH that does just fine.) The various codes are like \EOA, \EOB, \EOC, \EOD for up, down, left, and right respectively (if memory serves me). I am using gnumacs at the moment, but haven't the expertise to bind the M-O keys do to things... Carl /----------------------------------v------------------------------------------\ | Carl Greenberg, guest here | "I have a very firm grasp on reality! I | | ARPA: maddox@ernie.berkeley.edu | can reach out and strangle it any time I | | UUCP: ...ucbvax!ucbernie!maddox | want!" - Me | \----------------------------------^------------------------------------------/
gudeman@arizona.UUCP (02/10/87)
From: earleh@dartvax.UUCP (Earle R. Horton) Date: 8 Feb 87 17:25:50 GMT In article <265@hqda-ai.UUCP>, merlin@hqda-ai.UUCP (David S. Hayes) writes: > key functions. The vt100 key sequences all start with ESC-[, Sorry to be picky, but some of them start with ESC-O. This seems to depend on whether the terminal is in "ANSI" mode or "VT100" mode. (That's an "Oh", not a "zero".) I am no expert on the subject, but I think the sequence usually used by editors to "turn on" the keypad ("\E=") puts it in ANSI mode, and then the sequences all start with ESC-O. This is the case for wy75 terminals, which claim to be vt100 compatible, so it may work for vt100's. Put "ks=\E[?1h\E=" in your termcap. The "ks" entry is for keypad start, "\E[?1h" makes the arrow keys send "ESC O" sequences instead of "ESC [", and "\E=" makes the keypad send "ESC O" sequences. Also, every once in a while, the "ESC O" sequence gets changed to "ESC G" somehow (every 100 times or so), so you should bind both to the same keymap. Here is part of my file "keypad.el", which is loaded from my ".emacs". To find out the code associated with a keypad key, type "^Q" followed by the key. (defvar ESC-O-keymap (make-keymap) "Keymap for arrow and keypad keys") (global-set-key "\eO" ESC-O-keymap) (global-set-key "\eG" ESC-O-keymap) ; sometimes sent as prefix for keypad ; keys, probably a transmission error. (define-key ESC-O-keymap "D" 'backward-char) ; <- (define-key ESC-O-keymap "C" 'forward-char) ; -> (define-key ESC-O-keymap "A" 'previous-line) ; up-arrow (define-key ESC-O-keymap "B" 'next-line) ; dn-arrow (define-key ESC-O-keymap "H" 'home) ; Home (fset 'home "[0 ") ; home goes to the beginning of the current ; paragraph and puts that line at the top of ; the window. (define-key ESC-O-keymap "l" 'scroll-down) ; KPD-, (define-key ESC-O-keymap "M" 'scroll-up) ; Enter (define-key ESC-O-keymap "n" 'move-to-window-line) ; KPD-.