vim key sequence as function argument

Question

I want to execute the command "yiw:s/\<<C-r>"\>/<C-r>"/g<Left><Left>" by key sequence. So I make a mapping

    nnoremap <F7> yiw:s/\<<C-r>"\>/<C-r>"/g<Left><Left>

This mapping copy the word under cursor, then the string :s/\<">/"/g" (where " are substituted by the copied word) appears in the command line and the cursor in the command line is at the end of replacement statement.

I also want to save cursor position before this command and restore after.

  function! SafeCommand(cmd)
let line = line('.')
let col = col('.')
// execute cmd here 
call cursor( line, col )
  endfunction

How to do that?

1) you mapped F then 7, not <F7>. 2) if you want to do a :s/../../g you need put <CR> there 3) even if there was a <CR>, your left left doesn't make sense either, because after substitution, your cursor would be at the beginning of that line. 4) I didn't understand what are you trying to do...replace the word under cursor with same word? can you explain it a bit in your question? — Kent
– Kent, Commented Mar 30, 2013 at 23:48
after firing your mapped command, pressing Ctrl-O could bring you back to the old position. Also, you don't have to copy the current word, in command line <c-w> (:h <c-w>) will copy the word under cursor. do you want that function anyway? — Kent
– Kent, Commented Mar 31, 2013 at 0:44
Thx for tips. But yes, I still want to know how to write such function. — user14416
– user14416, Commented Mar 31, 2013 at 1:05
If I were you, I would in function accepting user's input (the replacement) by input(). I am not sure if passing a string as keysequence work in function, and stopping at command line and waiting for user finishing the cmd then pressing enter, then function continues.... at least normal or execute don't.. — Kent
– Kent, Commented Mar 31, 2013 at 1:54

Matthew Strawbridge · Accepted Answer · 2013-03-31 12:11:47Z

1

Normally, you'd just put the entire (complex) command in a function, and invoke that function from the :nnoremap. But that doesn't work for incomplete commands, like the template :substitute that your mapping represents. For that, you need to include the save / restore parts into the command-line (though that's ugly):

:fun! Save()
    let s:line = line('.')
    let s:col = col('.')
:endfun
:fun! Restore()
    call cursor( s:line, s:col )
:endfun
:nnoremap <F7> yiw:call Save()<Bar>s/\<<C-r>"\>/<C-r>"/g<Bar>call Restore()<Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left>

edited Mar 31, 2013 at 12:11

Matthew Strawbridge

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answered Mar 31, 2013 at 11:13

Ingo Karkat

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