Vim map CTRL-S indenting problem

sadarax · 01-15-2008, 09:39 PM

In my vimrc file, I have mapped CTRL-S in all modes to save my file. However I have a small problem.

Here is my .vimrc file:

Code:

nnoremap <C-s> :update<CR>
cnoremap <C-s> <Esc>:update<CR>
inoremap <C-s> <Esc>:update<CR>a

If I manually an indenting with the TAB key a few times and then hit CTRL-S, there are no problems.

But, I use C-indention (set cindent), so when I am writing code and I hit ENTER on certain lines, Vim will automatically indent me several tabs appropriately. When I have been indented automatically by Vim, and then I press CTRL-S, it will save but then Vim unindents my cursor.

I want to find a way to keep my cursor indented I hit save (after I have been auto-indented by Vim).

dive · 01-16-2008, 04:33 PM

The best place to get help on vim is probably the user mailing list at vim.org. It's a busy list and there are many people who can help there.

sadarax · 01-16-2008, 08:44 PM

Quote:

Originally Posted by dive

The best place to get help on vim is probably the user mailing list at vim.org. It's a busy list and there are many people who can help there.

Thanks, they were very helpful.

Solution:

Code:

inoremap <C-s> <Space><BS><C-\><C-O>:update<CR>

dive · 01-16-2008, 09:01 PM

Out of curiosity, how did you stop ctrl-s/q from doing xoff/xon?

sadarax · 01-16-2008, 10:55 PM

Quote:

Originally Posted by dive

Out of curiosity, how did you stop ctrl-s/q from doing xoff/xon?

I don't understand your question.

dive · 01-17-2008, 08:11 AM

Ctrl-s is usually bound in most terminals to xoff, which means it stop outputs in the terminal (actually comes from modems and serial line terminals - data off). Ctrl-q is bound to xon and restarts output. Useful if you have a lot of output scrolling by - you use ctrl-s to freeze output so it can be read.

To be able to bind ctrl-s to a command in vim I would have thought you would have to be able to turn off this behaviour, unless you are using a terminal that doesn't support xon/xoff. Most do but I'm not sure about konsole or gnome terminal. I know rxvt, mrxvt, xterm do.

sadarax · 01-17-2008, 01:52 PM

Quote:

Originally Posted by dive

Ctrl-s is usually bound in most terminals to xoff, which means it stop outputs in the terminal (actually comes from modems and serial line terminals - data off). Ctrl-q is bound to xon and restarts output. Useful if you have a lot of output scrolling by - you use ctrl-s to freeze output so it can be read.

To be able to bind ctrl-s to a command in vim I would have thought you would have to be able to turn off this behaviour, unless you are using a terminal that doesn't support xon/xoff. Most do but I'm not sure about konsole or gnome terminal. I know rxvt, mrxvt, xterm do.

That is interesting because I have never encountered that before. I normally use the /dev/ttys or Konsole. I did nothing special. I just bound the key and it seemed to work.