patch 8.2.3915: illegal memory access when completing with invalid bytes Commit: https://github.com/vim/vim/commit/4b28ba3245df8274303c79429972f9dc9438e4aa Author: Bram Moolenaar <Bram@vim.org> Date: Mon Dec 27 19:28:37 2021 +0000 patch 8.2.3915: illegal memory access when completing with invalid bytes Problem: illegal memory access when completing with invalid bytes. Solution: Avoid going over the end of the completion text.

" Script to fill the window with emoji characters, one per line.
" Source this script: :source %

if &modified
  new
else
  enew
endif

" Use a compiled Vim9 function for speed
def DoIt()
  var lnum = 1
  for c in range(0x100, 0x1ffff)
    var cs = nr2char(c)
    if charclass(cs) == 3
      setline(lnum, '|' .. cs .. '| ' .. strwidth(cs))
      lnum += 1
    endif
  endfor
enddef

call DoIt()
set nomodified