patch 8.2.2654: Vim9: getting a character from a string can be slow Commit: https://github.com/vim/vim/commit/ff871400461183010d3ab98f3f326e4bb75e221b Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 26 13:34:05 2021 +0100 patch 8.2.2654: Vim9: getting a character from a string can be slow Problem: Vim9: getting a character from a string can be slow. Solution: Avoid a function call to get the character byte size. (https://github.com/vim/vim/issues/8000)

" Vim compiler file
" Compiler:             BDF to PCF Conversion
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2006-04-19

if exists("current_compiler")
  finish
endif
let current_compiler = "bdf"

let s:cpo_save = &cpo
set cpo-=C

setlocal makeprg=bdftopcf\ $*

setlocal errorformat=%ABDF\ %trror\ on\ line\ %l:\ %m,
      \%-Z%p^,
      \%Cbdftopcf:\ bdf\ input\\,\ %f\\,\ corrupt,
      \%-G%.%#

let &cpo = s:cpo_save
unlet s:cpo_save