I am aware that issues with using the <M-something> construct with map
has provoked a lot of discussion. I freely admit that I have not read
all of it carefully, or even much of it. But I thought I'd
report what I'd found from trying to resolve my own problem with this;
perhaps it will help someone else. If what I'm about to say has
already been said, use your delete key, or maybe backspace :-)
I am running vim, not gvim, on an x86_64 Arch Linux system. I run X
with dwm from suckless.org; no desktop system. I run vim in the
terminal emulator from suckless, st. I tried
map <M-j> <C-w>j
as well as the obvious other three. This did not work. I did some
digging and found discussion on this list about various codes that get
sent by various keyboards. I have a standard US Lenovo keyboard. I ran
xev to see what X thought the keyboard was sending, and pressing the
left-hand alt key produced, wonder of wonders
KeyPress event, serial 32, synthetic NO, window 0x2000001,
root 0x24a, subw 0x0, time 6772607, (606,476), root:(607,492),
state 0x0, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
The j key produced something similarly expectable. So my keyboard is
not the problem. Reading the vim documentation and some other
material, I realized that I could see what
vim was receiving, using c-v. What I got was ^[j when I pressed the
left-hand alt key and 'j'; vim is seeing escape-j. Changing the map
command in my .vimrc to
map ^[j <C-w>j
did the trick.
I'm by no means an expert on termcap and terminfo, but I know what
they do. On a hunch, I tried running vim in xterm, rather than st, and
lo-and-behold,
map ^[j <C-w>j
did not work, but
map <M-j> <C-w>j
did.
rxvt behaves the same way st does (you get the escape).
Conclusion: as Bram has said, vim can only deal with what it sees.
There's stuff between your keyboard and vim, and if it does something
other than what you expect, the results won't be what you expect. In
this case,
knowing what your terminal emulator does matters a lot.
--
--
You received this message from the "vim_dev" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php
---
You received this message because you are subscribed to the Google Groups
"vim_dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
