patch 8.2.3628: looking terminal colors is a bit slow Commit: https://github.com/vim/vim/commit/87fd0924e2d85213cc111ee7a5122f92216a37c7 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 20 13:47:45 2021 +0000 patch 8.2.3628: looking terminal colors is a bit slow Problem: Looking terminal colors is a bit slow. Solution: Cache the terminal colors. (closes https://github.com/vim/vim/issues/9130, closes https://github.com/vim/vim/issues/9058)

" 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