I've been using Vim for a long time an unfortunately I've got very used to using <S-Space> to exit insert mode. Old habits die hard.
It seems when I put
imap <S-Space> <Esc>
in my .xvimrc it ignores the Shift part as interprets it as just Space. I think some time ago I read somewhere that that's an issue with OSX (they just didn't think anybody will ever need to type a 'capital space').
The way I solved that with Vim in iTerm2 is just map a character I'll never use (✠) to <S-Space> in iTerm2 and then use that in my .vimrc.
Any idea how I can make <S-Space> work in XVim?
Related
Never having thought about it, I just found out that I am used to Shift-Space doing the same thing as Space. But now it doesn't any more: my typing started looking like this a couple of days ago:
a[x +1]= b
where I wanted to write
a[x + 1] = b
I suppose I let go of Shift too slowly. It never used to be a problem, until I installed Yosemite, and now Shift-Space does not register at all any more. I tried :imap <S-Space> <Space>, but that too does not trigger.
It does not happen in Terminal Vim, nor does it happen in any other application I own.
EDIT: I am on a Japanese keyboard, using Kotoeri (Apple's Japanese IME).
This seems to be an incompatibility introduced in Yosemite's Kotoeri (Japanese IME). For the time being, switching to Google Japanese IME as an alternative (or not using Japanese input in the first place, if that is an option) circumvents the issue. See this discussion for details.
I'm running into some trouble using Vim in OSX which is: whenever I copy outside of Vim and COMMAND + P to paste text inside, a few characters of the copied text gets deleted.
COPY: Function(){...... + 20 lines
PASTE n(){..... + 20 lines)
I know Vim has a lot of ins and outs... I use it without trouble on my Ubuntu setup. But I am not really expert with it yet and I have a feeling this is a basic issue mac users will have encountered. However, I was looking through the forums and googling it, and I cannot seem to find an answer.
Appreciate so much any help.
EDIT: I know this is a very basic question that someone might ask if they didn't understand the basics of Vi insert mode and hadn't like run Vimtutor. For me that was not quite the issue; I actually have been working of Vim for a while, but this default behavior had been changed early on (so I never noticed it).
I definitely would have wasted a lot of time before considering the basics of how insert mode works, so really thank you so much for your awesome, timely responses! I hope that this thread is useful to some other folks who're perhaps inadvisably pulled some "boilerplate" .vimrc off the internet, or have gotten used to Vim as configured by others... because the point of Stack Overflow isn't to explain to people things they should have picked in like 10 seconds from a man page or whatever.
It looks like you're not in insert mode when you're pasting, so Vim interprets the text as commands, until one letter (e.g. i or o) accidentally switches to insert mode. [1]
You need to go into insert mode first (i, also consider :set paste, and the 'pastetoggle' option; :help 'paste' has some background information).
Or (when supported), access the clipboard from within Vim, e.g. via "+p (normal mode) or <C-R><C-R>+ (insert mode).
As only the terminal-based versions of Vim have this problem of differentiating between typed and pasted keys, switching to the GUI GVIM (I think called MacVim there) would avoid this problem, too.
[1] Vim understands the example as:
Fu: backward find character u
n: next search match
cti: change until before the next character i (which aborts insert mode when there's no such character)
o: new line below the cursor and insert text
Every now and then when using the ack-vim plugin the font in my window will change to all symbols. I've yet to see any pattern to when this happens. Any suggestions on the cause and possible remedy would be appreciated.
I've seen that happen when binary content got printed to the terminal. Do your Ack queries potentially include binary files?
A fix might be
:!echo -e '\ec\e(K\e[J'
These ANSI Escape sequences attempt to reset the terminal:
# "ESC c" - sends reset to the terminal.
# "ESC ( K" - reloads the screen output mapping table.
# "ESC [ J" - erases display.
This looks like the typical character set translation enabled by the Shift Out control character; you usually just need to send the Shift In control character to counteract it.
Basically, something is outputting a C-n character (Control-N, U+000E, named Shift Out) which tells your terminal to switch to a different display character set. You should be able to get your terminal to switch back to the normal display character set by sending a C-o (Control-O, U+000F, named Shift In) to it.
If you are in Vim, then you can probably send the C-o with a command like this:
:!printf \\017
You will have to type (or paste) this command “blindly” since (due to the alternate character set) you will probably not be able to read what you are typing. If you are typing it (not pasting), then you can also type C-v C-o (to insert a single, literal C-o) instead of the backslashed octal, if that is easier to remember.
If you find that this problem occurs only sporadically when you use the vim-ack plugin, then perhaps some bit of the text results contains the problematic Shift Out character. You might try searching for the file with a command like this:
grep -FRl $(printf \\016) .
Once you know the names of the files, then you should be able to use Vim to search for the character (start a search and type C-v C-n to insert a literal C-n). Maybe it is just some garbage that you can clean out, or maybe you can configure your ack-based searches to exclude the problematic files.
You also tagged the question with tmux. I can not tell for sure, but it looks like the top line might be a tmux status line. Since this line is also corrupted it indicates that it your external terminal emulator that has switched character sets, not just one of your tmux panes.
If you send Shift Out or Shift In directly to a tmux pane it will only affect that pane (each pane is emulated independently), so your status like could not have been munged just by a stray Shift Out hitting a single pane.
If you are running inside tmux, then the easiest way to reset the outside terminal is to suspend and resume your tmux client (or detach from and reattach to your session). tmux pretty much resets the outside terminal when it gives up control.
Depending on the situation, you may also have to reset the character set of the tmux pane by sending it a C-o, too (i.e. printf \\017 at a shell, or a :! prompt in Vim).
It is easy to see how a stray Shift Out could reconfigure a single tmux pane, but it is harder to see how it could have “leaked” out to reconfigure the external terminal (tmux is pretty good at isolating things like this). However, there is a control sequence that tmux recognizes that instructs it to pass data directly to the external terminal (thus “leaking out”), but it is much less likely that you would randomly encounter this sequence since it is much longer:
printf '\ePtmux;%s\e\\' 'stuff bound for the external terminal'
You could use it to send the restorative Shift In like this:
printf '\ePtmux;%s\e\\' $(printf \\017)
You will also want to tell tmux to redraw itself after this (by default, the refresh-client command is bound to C-b r).
It is probably easier to just suspend and resume (or detach and reattach), but this sequence is useful if that is not possible. It also provides a means toward understanding what kind of sequence might “leak” out of tmux to switch the character set of the external terminal.
Relative Emacs newbie here, just trying to adapt my programming workflow to fit with emacs. So far I've discovered shell-pop and I'm quite enjoying on-demand terminals that pop up when needed for banging out the odd commands.
What I understand so far about Emacs is that shell is a "dumb" terminal that doesn't support any ansi control codes, and that makes it incompatible with things like ncurses that attempt to draw complex UI's on a terminal emulator. This is why you can't use less or top or similar in shell-mode.
However, I seem to be having trouble with ansi-term, it's not the be-all, end-all that it's cracked up to be. Sure, it has no problems running less or git log or even nano, but there are a few things that can't quite seem to display properly when they're running in an ansi-term, such as apt-get and nosetests. I'm not sure quite what the name is for it, but apt-get's output is characterised by live-updating what is displayed on the very last line, and then having unchanging lines of text scroll out above that line. It seems to be halfway between something like less and something dumber, like cat. Somehow ansi-term doesn't like this at all, and I get very garbled output, where it seems to output everything on one line only or just generally lose it's place and output things all over, randomly. In the case of nosetests, it starts off ok, but if any libraries spew out any STDERR, the output all goes to hell in a similar way.
With some fiddling it seems possible to fix this by mashing C-l and RET, but it's not always reliable.
Does anybody know what's going on here? Is there some way to fix ansi-term so that it can display everything properly? Or is there perhaps some other mode that I don't know about that is way better? Ideally I'd like something that "just works" as effortlessly as, eg, Gnome Terminal, which can run all of the above mentioned programs without a single hiccup.
Thanks!
I resolved this issue by commenting out my entire .emacs.el and then uncommenting and restarting emacs for every single line in the file. I discovered that the following line alone was responsible for the issue:
'(fringe-mode 0 nil (fringe))
(this line disables the fringes from inside custom-set-variables).
I guess this is a bug in Emacs, that disabling the fringe causes term-mode to garble it's output really badly whenever any output line exceeds $COLUMN columns.
Anyway, I don't really like the fringes much at all, and it seems I was able to at least disable the left fringe without triggering this issue:
(set-fringe-mode (cons 0 8))
Maybe apt-get does different things based on the $TERM environment variable. What happens if you set TERM=dumb? If that makes things work, then you can experiment with different values until you find one that supports enough features but still works.
Note that git 2.0.1 (June 25th, 2014) now better detects dumb terminal when displaying verbose messages.
That might help Emacs better display some of the messages received from git, but the fringe-mode bug reported above is certainly the main cause.
See commit 38de156 by Michael Naumov (mnaoumov)
sideband.c: do not use ANSI control sequence on non-terminal
Diagnostic messages received on the sideband #2 from the server side are sent to the standard error with ANSI terminal control sequence "\033[K" that erases to the end of line appended at the end of each line.
However, some programs (e.g. GitExtensions for Windows) read and interpret and/or show the message without understanding the terminal control sequences, resulting them to be shown to their end users.
To help these programs, squelch the control sequence when the standard error stream is not being sent to a tty.
I'm playing around with making a simple terminal-based game with Ruby, and I'm currently trying to come up with a way of reading input from the terminal.
So far I've been using gets, but I'd like to have the game react instantly without requiring a newline (so you don't need to press a key, THEN enter).
I've figured out I need to put the terminal in non-canonical mode, and I'm assuming I can do that by calling $stdin.ioctl. The problem is, I'm not sure what arguments or flags I should be passing to this, and the documentation and searches just lead to information about the underlying C function.
Can anyone tell me what I should be calling $stdin.ioctl with? I'm using Terminal.app/tcsh on OSX Leopard.
Edit: This is what I ended up using, thanks to MarkusQ:
%x{stty -icanon -echo}
key = STDIN.read(1)
Your problem is outside of ruby.
Easiest answer: wrap your IO in %x{stty -raw echo} and %x{stty -raw echo} to change the mode with stty.
You'll probably want to do and ensure an exit handler to make certain the mode is set back when you exit.
-- MarkusQ