I'm using tmux 1.6 and I'm really struggling to get a lot of the keymaps that I
had working in a pure Linux environment working now that I switched to a Mac.
Well, it has been a while since I switched, and I can't promise that all of
these worked, but a number of them did.
Here are the keymaps that I have in my .tmux.conf file. I have simplified them
to mostly run the same command to make it easier for me to build the "what
works"/what doesn't table below. Here are the keymaps…
mgarrett@ubuntu:~$ grep bind-key .tmux.conf
>bind-key -n F10 new-window
>bind-key -n F11 previous-window
>bind-key -n F12 next-window
>bind-key -n F13 new-window
>bind-key -n F14 previous-window
>bind-key -n F15 next-window
>bind-key -n C-F10 split-window -h
>bind-key -n C-F11 split-window -h
>bind-key -n C-F12 split-window -h
>bind-key -n C-F13 split-window -h
>bind-key -n C-F14 split-window -h
>bind-key -n C-F15 split-window -h
>bind-key -n M-F10 split-window -v
>bind-key -n M-F11 split-window -v
>bind-key -n M-F12 split-window -v
>bind-key -n M-F13 split-window -v
>bind-key -n M-F14 split-window -v
>bind-key -n M-F15 split-window -v
>bind-key -n C-Tab split-window -h
>bind-key -n M-Tab split-window -v
>bind-key -n C-TAB split-window -h
>bind-key -n M-TAB split-window -v
>bind-key -n C-= split-window -h
>bind-key -n M-= split-window -v
>bind-key -n C-\ split-window -h
>bind-key -n M-\ split-window –v
>
>
Here are a few keys that directly tell me that they won't work in all 3
terminals that I tried, but should be free on this machine…
/home/mgarrett/.tmux.conf: 28: unknown key: C-Tab
>/home/mgarrett/.tmux.conf: 31: unknown key: C-TAB
>/home/mgarrett/.tmux.conf: 34: unknown key: C-=
>
>
Here is a table showing what works and what doesn't in the 3 different terminal
apps that I use on the Mac (my preference is iTerm2 but I would switch to any
of them if I was able to get easier control of more keys):
Key(s) iTerm2 Xquartz Xterm Mac Terminal
F10 works works works
F11 works works works
F12 works works works
F13 works displays ~ when pressed displays ~ when pressed
F14 works displays ~ when pressed displays ~ when pressed
F15 works displays ~ when pressed displays ~ when pressed
ctrl-F10 acts like no ctrl is pressed works audiible bell
ctrl-F11 acts like no ctrl is pressed works audiible bell
ctrl-F12 acts like no ctrl is pressed works audiible bell
ctrl-F13 acts like no ctrl is pressed works (even when F13 was ~) audiible bell
ctrl-F14 appears to do nothing appears to do nothing appears to do nothing
ctrl-F15 appears to do nothing appears to do nothing appears to do nothing
alt-F10 acts like no alt is pressed acts like no alt is pressed displays ~ when
pressed
alt-F11 acts like no alt is pressed acts like no alt is pressed displays ~ when
pressed
alt-F12 acts like no alt is pressed acts like no alt is pressed displays ~ when
pressed
alt-F13 acts like no alt is pressed displays ~ when pressed displays ~ when
pressed
alt-F14 acts like no alt is pressed displays ~ when pressed displays ~ when
pressed
alt-F15 acts like no alt is pressed displays ~ when pressed displays ~ when
pressed
ctrl-\ works works works
alt-\ works displays what looks like a fish when pressed works
ctrl-- (dash) audible bell acts like no ctrl was pressed displays ~ when
pressed
alt-- (dash) works appears to do nothing displays "(arg: -1)" when pressed
ctrl-Tab appears to do nothing acts like no ctrl was pressed acts like no ctrl
was pressed
alt-Tab works acts like no alt was pressed works
It took me a while to create that table. I'm sorry if it is overwhelming in
this context.
Here are my questions now that you have that background data:
1. Is there a way to get tmux to allow me to use ctrl-Tab?
2. Same for ctrl-=
3. Are there tmux settings that will help me to get many of these keys
working?
4. Or, are my problems at the Mac or <insert terminal app here> layer?
In other words, am I even asking the correct people the question? Should this
question be directed at each of the different terminal owners? Or Is this
possibly a Mac OSX problem? My completely uninformed opinion at the end of
this exercise is that the terminals are all handling keyboard stuff in at least
a slightly different way which must be a nightmare for tmux, screen and complex
terminal apps like vim, emacs, and libraries like curses. Am I right about
that? If so, is there a better way to handle it, and is someone working on
that better way?
5. Is there a better way to debug keyboard stuff like this? A long
time ago, when working in Linux mostly, I learned this command (cat >
/dev/null). That command takes keys pressed and shows the code that is being
sent. At the end of building the table above, I went back and ran many of the
same keystrokes, but ran them into "cat > /dev/null". The result was, in many
cases, exactly what I would have expected to see based on the tmux result.
Commands that appeared to be ignoring a ctrl or alt in tmux showed the exact
same code being sent for both.
-Mike ------------------------------------------------------------------------------
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