Can somebody move my cursor?

[Zdenek Sekera]

Hi,

this code is heavily influenced by vim.org tip #1363 "getchar trick
using recursive <expr> map" by Hari Krishna Dara. Clever code.
The code has also been posted on vim-dev recently. I just reworked
it a bit to understand it better.

-----
imap <buffer> <silent> <expr> <F12> Double("\<F12>")
function! Double(mymap)
  let char = GetChar()
  if char =="\<Esc>"
"      return "\<Esc>"."\<C-R>=Redraw()\<CR>"
      return "\<Esc>"
  else
      return char."\<C-R>=Redraw()\<CR>".a:mymap
  endif
endfunction

function! Redraw()
  redraw
  return ''
endfunction

function! GetChar()
  try
    let char = getchar()
            " catch Interrupt <C-C> and convert it into <Esc>
  catch /^Vim:Interrupt$/
    let char = "\<Esc>"
  finally
    try
      throw char
            " If the character typed is a number, convert it to character
      catch '^\d\+$'
        let char = nr2char(char)
      finally
            " Return whatever was typed, or converted
        return char
    endtry
  endtry
  return char
endfunction
----

To execute:
- source it in
- go to Insert mode (a, i, o, ...) and start typing, observe that
  the cursor is inside the window at the place where the next typed-in
  char will be put (important).
- now hit <F12>, the cursor will move to the bottom of the window
  and stay there but continue typing and characters will be placed
  correctly in the window. (Hit <Esc> to get out of INSERT.)

Hence my question: how to move the cursor to the position as if
one was in the "normal" INSERT mode?

Thanks and regards,

---Zdenek

smime.p7s
Description: S/MIME Cryptographic Signature