jump to the first nonblank character in vim inside tmux - vim

I have this function in my vimrc to jump to the first nonblank character on the line:
function! SmartHome()
let s:col = col(".")
normal! ^
if s:col == col(".")
normal! 0
endif
endfunction
This works well outside of a tmux session.
But inside of a tmux session it will just jump to the first character on the line - which is wrong!
I have mapped this function this way:
" smart home function
nnoremap <silent> <Home> :call SmartHome()<CR>
inoremap <silent> <Home> <C-O>:call SmartHome()<CR>
How can I solve this?

I could solve this problem by removing the following line from my .bashrc file
export TERM=xterm-256color
This works since xterm and the screen "like" protocol from tmux does not send/expect the same values for the HOME key:
$ tput -T screen khome | xxd
0000000: 1b5b 317e .[1~
$ tput -T xterm khome | xxd
0000000: 1b4f 48 .OH

Related

grep in VIM opens terminal with results before showing them in vim

I run vim in terminal and whenever I search for something using grep, like
:grep search_for filename
it closes the vim, shows result in terminal with the "Press Enter to continue" message and only after I press enter it shows the results back in vim. How to prevent this terminal opening and show results directly in vim?
One method would be to do the following:
function! Grep(...)
return system(join([&grepprg] + [a:1] + [expandcmd(join(a:000[1:-1], ' '))], ' '))
endfunction
command! -nargs=+ -complete=file_in_path -bar Grep cgetexpr Grep(<f-args>)
command! -nargs=+ -complete=file_in_path -bar LGrep lgetexpr Grep(<f-args>)
cnoreabbrev <expr> grep (getcmdtype() ==# ':' && getcmdline() ==# 'grep') ? 'Grep' : 'grep'
cnoreabbrev <expr> lgrep (getcmdtype() ==# ':' && getcmdline() ==# 'lgrep') ? 'LGrep' : 'lgrep'
augroup quickfix
autocmd!
autocmd QuickFixCmdPost cgetexpr cwindow
autocmd QuickFixCmdPost lgetexpr lwindow
augroup END
This will let you type out :grep foo without the need for "Press Enter" prompt. I would recommend you read the article/gist as well.

How to shortcut (nmap) windo command expression?

For closing all quickfix windows, I use the following vim command expression:
:windo if &buftype == 'quickfix' || &buftype == 'locationlist' | lclose | endif
Whenever I try to shortcut it like:
nmap <S-q> :let #a = "%:windo if &buftype == 'quickfix' || &buftype == 'locationlist' | lclose | endif"
by using nmap in my init.vim, I got an error:
E749: empty buffer
E488: Trailing characters
How to solve that?
Explanation
The | is a command separator; unfortunately (this is a common pitfall), it also ends any :map command, and the remainder is interpreted immediately, instead of being part of the mapping.
:help map-bar lists three different solutions; the most common is using the special <Bar> notation instead of |.
Your mapping
nmap <S-q> :let #a = "%:windo if &buftype == 'quickfix' <Bar><Bar> &buftype == 'locationlist' <Bar> lclose <Bar> endif"
Is the %:windo a typo? The % is suspicious.
The mapping is missing the trailing <CR>; it will linger until you press <Enter> yourself. Is that intended?
Why do you assign the commands to register a instead of executing it?
You should use :noremap; it makes the mapping immune to remapping and recursion.
'buftype' is always quickfix, also for location lists; you can drop the second branch in the test.
noremap <S-q> :windo if &buftype == 'quickfix' <Bar> lclose <Bar> endif<CR>

vim: alias yank and copy to xclip

I've got a cntrl c and cntrl v mapped to xclip, however its a hassle to have to remember to use instead of regular y and p. Is there a way to alias the two or send contents of y and p to xclip, so I can just use y and p for all copy and pasting?
vmap <C-c> y:call system("xclip -i -selection clipboard", getreg("\""))<CR>:call system("xclip -i", getreg("\""))<CR>
nmap <C-v> :call setreg("\"",system("xclip -o -selection clipboard"))<CR>p")")")"))
Are you trying to use the X clipboard for all copy and pastes? If so, a good alternative to xclip is to make sure you're using a vim with X support (it's really easy to compile Vim if your version doesn't have it) and then add the following to your vimrc:
set clipboard=unnamed
All yanks and deletes will then automatically go to the * register (which is the X selection register).
Instead of setting clipboard=unnamed, you can also use the X selection register for a single operation by using (e.g.)
"*yw
"*yy
"*ya(
or whatever.
Obviously, this doesn't answer your question as to how to use xclip, but hopefully it offers an alternative approach.
I don't know if this is an ideal solution, but it works.
set clipboard=unnamedplus
function! ClipboardYank()
call system('xclip -i -selection clipboard', ##)
endfunction
let vlcb = 0
let vlce = 0
function! ClipboardPaste(mode)
if (a:mode == "v")
call cursor(g:vlcb[0], g:vlcb[1]) | execute "normal! v" | call cursor(g:vlce[0], g:vlce[1])
endif
let ## = system('xclip -o -selection clipboard')
endfunction
" replace currently selected text with default register without yanking it
vnoremap <silent>p "_dP
vnoremap <silent>y y:call ClipboardYank()<CR>
vnoremap <silent>d d:call ClipboardYank()<CR>
nnoremap <silent>dd dd:call ClipboardYank()<CR>
nnoremap <silent>p :call ClipboardPaste("n")<CR>p
vnoremap p :<C-U>let vlcb = getpos("'<")[1:2] \| let vlce = getpos("'>")[1:2] \| call ClipboardPaste("v")<CR>p
You can also set clipboard=unnamedplus to use the “+” register by default. Using it, I did yy in my .vimrc and then pasted that line here by ctrl-V ;)

How do I write a vim function to output the result of a system command?

What I have so far:
function! GetMarker()
return system('echo $random `date` | md5sum | cut -d" " -f1')
endfunction
I would like to be able to do a :getmarker and have it insert the output of that system command at my cursor, with no new lines.
Also what is the difference between function! and function?
Edit: before any of you ask, I need the random string to mark sections in my code so I can find them again by referencing my notes in my todo wiki.
Edit1. Take two. Trying to absorb the feedback from Luc. Without temp file (readfile() turned out to be not available in VIM 6.x I have on some systems).
:function InsertCmd( cmd )
: let l = system( a:cmd )
: let l = substitute(l, '\n$', '', '')
: exe "normal a".l
: redraw!
:endfunction
:imap <silent> <F5> <C-O>:call InsertCmd( 'echo date \| md5sum \| cut -d" " -f1' )<CR>
:map <silent> <F5> :call InsertCmd( 'echo date \| md5sum \| cut -d" " -f1' )<CR>
:put can't be used because it works line-wise. I replaced <Esc>...<Insert> with the all better <C-O>. I left redraw in, as it helps for the cases of called command produces output to the stderr.
Or using <C-R>=:
:function InsertCmd( cmd )
: let l = system( a:cmd )
: let l = substitute(l, '\n$', '', '')
: return l
:endfunction
:imap <silent> <F5> <C-R>=InsertCmd( 'echo date \| md5sum \| cut -d" " -f1' )<CR>
Also what is the difference between function! and function?
Exclamation on the end of command most of the time means force to execute. (Looking in the :help is advised since different commands use ! differently, but VIM tries to document all forms of the commands.) In the case of the function it tells VIM to override previous definition of the function. E.g. if you put the code above into the func1.vim file, first time :source func1.vim would work fine, but the second time it would fail with error that function InsertCmd is already defined.
I did once before try to implement something similar here. I'm not good at VIM programming, thus it looks lame and the suggestion from Luc should take precedence.
Here it goes anyway:
:function InsertCmd( cmd )
: exe ':silent !'.a:cmd.' > /tmp/vim.insert.xxx 2>/dev/null'
: let l = readfile( '/tmp/vim.insert.xxx', '', 1 )
: exe "normal a".l[0]
: redraw!
:endfunction
:imap <silent> <F5> <Esc>:call InsertCmd( 'hostname' )<CR><Insert>
:map <silent> <F5> :call InsertCmd( 'hostname' )<CR>
Despite being lame, it works though.
You can trim/chomp the last newline with matchstr(), substitute, [:-2], etc
function s:GetMarker()
let res = system('echo $random `date` | md5sum | cut -d" " -f1')
" then either
let res = matchstr(res, '.*\ze\n')
" or
let res = res[:-2]
" or
let res = substitute(res, '\n$', '', '')
return res
endfunction
command! -nargs=0 GetMarker put=s:GetMarker()
Banging the function/command definition (with '!') will permit you to source the script where it is defined several times and thus to update the function/command you are maintaining without having to exit vim.
I was running into similar problems with trying to map a hotkey to insert the current date and time. I solved the newline problem by just including a <backspace>, but this still inserted newlines when I was indented (backspace would kill the last character, but when I was indented I got newline+tab and only the tab would go away).
So I did this -- just turned smartindent off, insert the string, then turn it back on:
imap <F5> <esc>:set nosmartindent<CR>a<C-R>=system('echo $random `date` \| md5sum \| cut -d" " - f1')<CR><Backspace><esc>:set smartindent<CR>a
...which works, but it gets un-indented if you're sitting on a new, auto-indented line. To get around that, insert a character to hold your place, then escape, turn off smartindent, get rid of the extra character, and do the rest:
imap <F5> x<esc>:set nosmartindent<CR>a<backspace><C-R>=system('echo $random `date` \| md5sum \| cut -d" " -f1')<CR><Backspace><esc>:set smartindent<CR>a
This seems to work.

How do you exit vimdiff mode in vim, specifically, for Fugitive?

I am using vim with the fugitive extension. It has a :Gdiff command which brings you into vimdiff mode, but what is the right/quick way to close/quit vimdiff mode?
I.e., let's say I am editing the file FooBar.txt under Git repository. I fire up :Gdiff, review my changes in vimdiff, and then I want to get back and continue editing FooBar.txt or any other file :)
UPDATE1: I'm going to give these quick combos a try next working day :)
"vimdiff current vs git head (fugitive extension)
nnoremap <Leader>gd :Gdiff<cr>
"switch back to current file and closes fugitive buffer
nnoremap <Leader>gD :diffoff!<cr><c-w>h:bd<cr>
UPDATE2: My current mappings (closes diff window only!)
"vimdiff current vs git head (fugitive extension)
nnoremap <Leader>gd :Gdiff<cr>
"switch back to current file and closes fugitive buffer
nnoremap <Leader>gD <c-w>h<c-w>c
Also, please help me decide if the following should be an anwser: https://stackoverflow.com/a/15975201/275980
You can execute windo set nodiff noscrollbind and then close the second window.
Update: there is a diffoff command. Use windo diffoff, not what I wrote in previous line.
According to: https://github.com/tpope/vim-fugitive/issues/36
Close the other window. The easiest way to do this if you haven't shifted focus to it is <C-W><C-O>, which means "make this Window the Only window."
I had no luck with diffoff, but I just learned that :Gedit with no argument will bring you back to the working-directory version of the file, as opposed to some earlier version you were reviewing.
And as q (no need for :q) will close the diff sidebar, you can do q followed by :Gedit to get rid of the sidebar and then go back to the current version of the file.
None of the above solutions worked for me. Ended up doing this instead:
nnoremap <Leader>D :Gedit<CR><C-w>h :q<CR><C-w>k
This works fine for me, combining some of the existing ideas here:
function! MyCloseDiff()
if (&diff == 0 || getbufvar('#', '&diff') == 0)
\ && (bufname('%') !~ '^fugitive:' && bufname('#') !~ '^fugitive:')
echom "Not in diff view."
return
endif
" close current buffer if alternate is not fugitive but current one is
if bufname('#') !~ '^fugitive:' && bufname('%') =~ '^fugitive:'
if bufwinnr("#") == -1
b #
bd #
else
bd
endif
else
bd #
endif
endfunction
nnoremap <Leader>gD :call MyCloseDiff()<cr>
An alternative to <C-W><C-O>, if you have multiple windows, would be move to the other diff window and do <C-W>c, which close only one window.
If you close the wrong diff window do a :Gedit
Be careful and don't confuse <C-W>c with <C-W><C-C>
I've found a simple solution for this. You can check it here: https://gist.github.com/radmen/5048080
" Simple way to turn off Gdiff splitscreen
" works only when diff buffer is focused
if !exists(":Gdiffoff")
command Gdiffoff diffoff | q | Gedit
endif
Check the vimdiff toggling between diffthis and diffoff here
at this page.
The code:
nnoremap <silent> <Leader>df :call DiffToggle()<CR>
function! DiffToggle()
if &diff
diffoff
else
diffthis
endif
:endfunction
Method 1:
open a compare by:
:windo diffthis
close it by:
:windo diffoff
Method 2:
I recommend just using the most simple command: :q<CR>
when you want to do it quickly, add the mapping:
" Set mapleader
let mapleader = ","
let g:mapleader = ","
and
" Quickly close the current window
nnoremap <leader>q :q<CR>
It works well for me. Exit vimdiff just by ,q, because normally your cursor in the old file.
this is what I have to leave the vimdiff windows after using :Gdiff
nnoremap gD :q!<CR> :Gedit!<CR>
noremap <leader>do :diffoff \| windo if &diff \| hide \| endif<cr>
Quite diff mode and close other diff windows. (Note: fugitive will auto delete its hidden buffers.)
My function will work both from diff window and file window. But probably won't handle itself with multiple diffs opened. For that you'll need to use fugitive#buffer(n).path() to scan and match.
command! Gdiffoff call Gdiffoff()
function! Gdiffoff()
let diffbufnr = bufnr('^fugitive:')
if diffbufnr > -1 && &diff
diffoff | q
if bufnr('%') == diffbufnr | Gedit | endif
setlocal nocursorbind
else
echo 'Error: Not in diff or file'
endif
endfunction
Add a key binding:
nnoremap <silent> <leader>gD :Gdiffoff<CR>
Yet another way. What I have in fugitive.vim - first save some info (s:gitbufname) when diff starts:
function! s:Diff(vert,...) abort
call sy#toggle()
let s:startcol = winwidth(0)
let &columns=(winwidth(0) * 2 - 20)
...
if getwinvar('#', '&diff')
let s:gitbufname = bufname("%")
wincmd p
call feedkeys(winnr."\<C-W>w", 'n')
endif
...
endfunction
and later when leaving the buffer switch window to the saved buffer and restore:
augroup fugitive_diff
autocmd!
autocmd BufWinLeave *
\ if s:can_diffoff(+expand('<abuf>')) && s:diff_window_count() == 2 |
\ if exists('s:gitbufname') && winnr() != bufwinnr(s:gitbufname) |
\ let nr = bufnr("%") | exe bufwinnr(s:gitbufname).'wincmd w' | exe 'buf'.nr |
\ endif |
\ call s:diffoff_all(getbufvar(+expand('<abuf>'), 'git_dir')) |
\ call sy#toggle() |
\ call airline#load_theme() | call airline#update_statusline() |
\ let &columns=s:startcol |
\ endif
...
Was using the code below based on https://stackoverflow.com/a/15113951/10999673 :
if !exists(":Gdiffoff")
command Gdiffoff bw! fugitive://*
endif
but it gave me an error "E93: more than one match for ..." in a 3 way diff, so i instead used the answer from https://stackoverflow.com/a/4867969/10999673 and finally have this:
function! GetBufferList()
return filter(range(1,bufnr('$')), 'buflisted(v:val)')
endfunction
function! GetMatchingBuffers(pattern)
return filter(GetBufferList(), 'bufname(v:val) =~ a:pattern')
endfunction
function! WipeMatchingBuffers(pattern)
let l:matchList = GetMatchingBuffers(a:pattern)
let l:count = len(l:matchList)
if l:count < 1
echo 'No buffers found matching pattern ' . a:pattern
return
endif
if l:count == 1
let l:suffix = ''
else
let l:suffix = 's'
endif
exec 'bw ' . join(l:matchList, ' ')
echo 'Wiped ' . l:count . ' buffer' . l:suffix . '.'
endfunction
command! -nargs=1 Gdiffoff call WipeMatchingBuffers('fugitive://')
I just tweaked, copied and pasted the code into my .vimrc
Running :Gwrite after merging to your satisfaction will close the other two diff panes in addition to updating the git cache to mark the file as merged.

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