" A small plugin to replace a text object with the contents of a register.
"
" This is invoked with the 'cp' command. For example
"
"   cpiw - replace the inner word with the contents of the default register
" "ncpiw - replace the inner word with the contents of register 'n'
"
" Notably, this command does not alter the contents of the default register, so
" this command may be repeated without worry for changing the editor state.

noremap <silent> cp <cmd>call <sid>setcpreg(v:register)<bar>set operatorfunc=<sid>put<cr>g@

let s:savereg = ''
let s:cpbuf = '"'
function! s:setcpreg(r) abort
  let s:cpbuf = a:r
endfunction

function! s:put(arg, ...) abort

  if a:0
    echo a:1
    let vis = '`<' . a:arg . '`>'
  elseif a:arg == 'line'
    let vis = "'[V']"
  elseif a:arg == 'block'
    let vis = "`[\<C-v>`]"
  else
    let vis = "`[v`]"
  endif

  let save = getreg('"')
  silent! exec printf("norm %s\"%sp", vis, s:cpbuf)
  call setreg('"', save)

endfunction