c60a-4dc@WEB.berkeley.edu (09/08/89)
Though I know the flexibility and power, I have kept from using Jove
for my editor; I use Emacs on Xwindow and I prepare texts on any Mac editors
and send when on modem. And the single reason is, Jove originally doesn't bind
arrow key!
It is so painful that makes me feel Jove is not worth it despite its
power. And I tried bind arrow keys for vt100 by modifying .joverc and as you
guessed, failed. First I added the following:
bind-to-key previous-line ^[[A
bind-to-key next-line ^[[B
bind-to-key forward-character ^[[C
bind-to-key backward-character ^[[D
And when trying to use arrow keys, it beeps, and returns "ESC-0 not bound" on
the command line. So I took a look at cmd.doc and found a following:
:entry "bind-keymap-to-key" "Command"
This is the way to build nested keymaps. For example, when JOVE
starts up, internally it does a
bind-keymap-to-key ESC-map ^[
To make the arrow keys on vt100's work, you would do the following.
make-keymap vt100-map
bind-keymap-to-key vt100-map ^[[
bind-to-key next-line ^[[A
bind-to-key previous-line ^[[B
bind-to-key forward-character ^[[C
bind-to-key backward-character ^[[D
I may have gotten the escape sequences wrong, but you get the general
idea. Theoretically you can use these keymaps to bind arbitrarily
long key sequences, like those generated by the SUN keyboards, but
that is a bit of a pain because you will have to generate a bunch of
keymaps by hand, almost one per key, because of the way the key se-
quences are organized. Eventually there will be a more general way to
have these keymaps built for you.
I pasted above setting in .joverc and tried again. And failed in the
same manner as I explained in previous case.
Studying the last trial, I modified above example to the following:
make-keymap vtup
make-keymap vtdown
make-keymap vtr
make-keymap vtl
bind-keymap-to-key vtup ^[[A
bind-keymap-to-key vtdown ^[[B
bind-keymap-to-key vtr ^[[C
bind-keymap-to-key vtl ^[[D
bind-to-key previous-line ^[[A
bind-to-key next-line ^[[B
bind-to-key forward-character ^[[C
bind-to-key backward-character ^[[D
And again I failed--in the exact manner as I got for last cases. Is it
impossible to make my dream come true? Any info is welcome. If you know more
than I need, please also tell me if it is possible to write a conditional jump
like .emacs? I love Emacs and it is even more powerful but sometimes I don't
want to open new window for Emacs just to write a short messages. If
conditional jump is possible, I can maybe find the way to find bind sun arrow
keys provided I will come to know how to bind vt100 arrow keys. Thank you in
advance.
Dan Kogai
c60a-1kb@web.berkeley.edu
USMail: 1730 Laloma #1G Berkeley CA 94709
PacBell: 415-549-6106
jpayne%flam@Sun.COM (Jonathan Payne) (09/09/89)
In article <1989Sep8.022556.21527@agate.uucp> c60a-4dc@WEB.berkeley.edu () writes: > > Though I know the flexibility and power, I have kept from using Jove >for my editor; I use Emacs on Xwindow and I prepare texts on any Mac editors >and send when on modem. And the single reason is, Jove originally doesn't bind >arrow key! > It is so painful that makes me feel Jove is not worth it despite its >power. And I tried bind arrow keys for vt100 by modifying .joverc and as you >guessed, failed. First I added the following: > >And when trying to use arrow keys, it beeps, and returns "ESC-0 not bound" on >the command line. So I took a look at cmd.doc and found a following: > "ESC O not bound" should have been the give-away. Your arrow-keys are generating ^[Ox, not ^[[x. JOVE isn't as powerful as emacs. But it's fast and small and does most of the things in a reasonable way. The latest version has the following in the system-wide initialization file: make-keymap ansi-codes bind-keymap-to-key ansi-codes ^[[ bind-keymap-to-key ansi-codes ^[O bind-to-key previous-line ^[[A bind-to-key next-line ^[[B bind-to-key forward-character ^[[C bind-to-key backward-character ^[[D It creates a keymap called ansi-codes and binds that keymap to two differernt keys, "ESC [" and "ESC O". Then it binds the commands as you would like. NOTE: Binding with the sequence ^[[x binds it for ^[Ox as well, since they are sharing the ansi-codes map. You are right, it is a pain to bind arbitary sequences like those generated from the sun keyboards. Fortunately for me I hate function keys about as much as I hate arrow keys. The reason the arrow keys haven't been bound in the past is that I wanted to discourage people from using them. It's much better and faster to use the ^U command to move around in big chunks. There is no substitute for ^U^U^N or ^U^U^F, there really isn't. In this day and age everyone has a work station on his or her desk, so the machine can keep up with people holding down the arrow keys. Whatever.