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" Replace the operated text with the contents of a register
function! replace_operator#Operatorfunc(type) abort
" Save the current value of the unnamed register and the current value of
" the 'clipboard' and 'selection' options into a dictionary for restoring
" after this is all done
let save = {
\ 'unnamed': @@,
\ 'clipboard': &clipboard,
\ 'selection': &selection
\ }
" Don't involve any system clipboard for the duration of this function
set clipboard-=unnamed
set clipboard-=unnamedplus
" Ensure that we include end-of-line and final characters in selections
set selection=inclusive
" Build normal mode keystrokes to select the operated text in visual mode
if a:type ==# 'line'
let select = "'[V']"
elseif a:type ==# 'block'
let select = "`[\<C-V>`]"
else
let select = '`[v`]'
endif
" Build normal mode keystrokes to paste from the selected register; only add
" a register prefix if it's not the default unnamed register, because Vim
" before 7.4 gets ""p wrong in visual mode
let paste = 'p'
if s:register !=# '"'
let paste = '"'.s:register.paste
endif
silent execute 'normal! '.select.paste
" Restore contents of the unnamed register and the previous values of the
" 'clipboard' and 'selection' options
let @@ = save['unnamed']
let &clipboard = save['clipboard']
let &selection = save['selection']
endfunction
" Helper function for normal mode map
function! replace_operator#(register) abort
let s:register = a:register
set operatorfunc=replace_operator#Operatorfunc
return 'g@'
endfunction
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