vim：发送文本选择到bash

Question

How can I send the currently selected (in visual mode) text content to a bash command?

I know, bash commands can be called with :! , but for the rest I don't find documentation.

Answer 1

First, you can get visually selected text by a function. I brought this from https://stackoverflow.com/a/6271254/3108885 :

function! s:GetVisualSelection()
  let [lnum1, col1] = getpos("'<")[1:2]
  let [lnum2, col2] = getpos("'>")[1:2]
  let lines = getline(lnum1, lnum2)
  let lines[-1] = lines[-1][:col2 - (&selection == 'inclusive' ? 1 : 2)]
  let lines[0] = lines[0][col1 - 1:]
  return join(lines, "\n")
endfunction

Then add a map for Visual mode:

vnoremap <buffer> <F5> :<C-U>exec '!python -c' shellescape(<SID>GetVisualSelection(), 1)<CR>

If you press F5 , visually selected python code will be executed. You may define this map only for Python code, by prepending autocmd FileType python before vnoremap . So multiple file types can be handled.

autocmd FileType python vnoremap <buffer> <F5> :<C-U>exec '!python -c' shellescape(<SID>GetVisualSelection(), 1)<CR>
autocmd FileType ruby vnoremap <buffer> <F5> :<C-U>exec '!ruby -e' shellescape(<SID>GetVisualSelection(), 1)<CR>