How to execute file I'm editing in Vi(m)

Question

How to execute file that I\'m editing in Vi(m) and get output in split window (like in SciTE)?

Of course I could execute it like that:

:!scriptname
<         


        

Answer 1

In your .vimrc you can paste this function

function! s:ExecuteInShell(command)
  let command = join(map(split(a:command), 'expand(v:val)'))
  let winnr = bufwinnr('^' . command . '$')
  silent! execute ':w'
  silent! execute  winnr < 0 ? 'vnew ' . fnameescape(command) : winnr . 'wincmd w'
  setlocal buftype=nowrite bufhidden=wipe nobuflisted noswapfile nowrap number
  silent! execute 'silent %!'. command
  silent! redraw
  silent! execute 'au BufUnload  execute bufwinnr(' . bufnr('#') . ') . ''wincmd w'''
  silent! execute 'nnoremap   r :call ExecuteInShell(''' . command . ''')'
  silent! execute 'wincmd w'
  " echo 'Shell command ' . command . ' executed.'
endfunction
command! -complete=shellcmd -nargs=+ Shell call s:ExecuteInShell()
cabbrev shell Shell

After that, in vim run command :shell python ~/p.py as example. And you will get the output in splitted window. + After changes in p.py as example you will run the same command again, this function will not create new window again, it will display the result in the previous(same) splitted window.