I want to pipe the selected text to a shell command and receive the one-line output from this shell command on the vim info/command line?
What I\'m really trying to
I would do it like this:
Place this function in your vimrc:
function Test() range
echo system('echo '.shellescape(join(getline(a:firstline, a:lastline), "\n")).'| pbcopy')
endfunction
This will allow you to call this function by doing:
:'<,'>call Test()
Then you can also map that like this (just under the function declaration in your vimrc):
com -range=% -nargs=0 Test :<line1>,<line2>call Test()
So you can call the function doing this:
:'<,'>Test
Note: :<','>
are range selectors, in order to produce them just select the pertinent lines in visual mode and then go to command mode (pressing the colon key)
For multi line version you can do this after selecting the text:
:'<,'>:w !command<CR>
You can map it to simple visual mode shortcut like this:
xnoremap <leader>c <esc>:'<,'>:w !command<CR>
Hit leader key + c in visual mode to send the selected text to a stdin of the command. stdout of the command will be printed below vim's statusbar.
Real world example with CoffeeScript:
https://github.com/epeli/vimconfig/commit/4047839c4e1c294ec7e15682f68563a0dbf0ee6d
Another answer:
function Pastebin() range
let savedreg=@"
silent execute a:firstline.",".a:lastline."yank"
python import vim, subprocess
python p=subprocess.Popen(["pastebin"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
python p.stdin.write(vim.eval('@"'))
let @"=savedreg
python p.stdin.close()
python retstatus=p.poll()
python print p.stdout.read()
endfunction
Requires python support. Use it just like matias' function.
@matias 's solution is not work well for me, because it seems shellescape
will append \
to each line.
So I use sed
to accomplish this, and it works just fine!
"dump selected lines
function! DumpLines() range
echo system('sed -n '.a:firstline.','.a:lastline.'p '.expand('%'))
endfunction
com! -range=% -nargs=0 Dump :<line1>,<line2>call DumpLines()
Simply highlight the lines using visual line select shift-v, the hit :! and type the command you wish to send the commands to. The resulting output will then replace your selected text.
When you type your command it will appear at the bottom as:
:'<,'>!somecmd
the '<,'> is indicating that the range you have visually selected will be passed to the command specified after the !
Maybe you should use something like
:echo system('echo '.shellescape(@").' | YourCommand')
Starting from some vim-7.4 version it is better to use
:echo system('YourCommand', getreg('"', 1, 1))
. This is basically the only way to keep NUL bytes untouched should they be present in the file. Passing @"
in one or the other way will transform NUL bytes into NL (newline).