patch 8.0.0643: when a pattern search is slow Vim becomes unusable commit https://github.com/vim/vim/commit/fbd0b0af6800f6ff89857863d6a07ea03f09ff6c Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 17 18:44:21 2017 +0200 patch 8.0.0643: when a pattern search is slow Vim becomes unusable Problem: When 'hlsearch' is set and matching with the last search pattern is very slow, Vim becomes unusable. Cannot quit search by pressing CTRL-C. Solution: When the search times out set a flag and don't try again. Check for timeout and CTRL-C in NFA loop that adds states.

Test for script-local function.     vim: set ft=vim :

STARTTEST
:so small.vim
:"
:set nocp viminfo+=nviminfo
:/^start:/+1,/^end:/-1w! Xtest.vim
:source Xtest.vim
_x
:$-1,$wq! test.out
ENDTEST

start:
fun <SID>DoLast()
  call append(line('$'), "last line")
endfun
fun s:DoNothing()
  call append(line('$'), "nothing line")
endfun
nnoremap <buffer> _x	:call <SID>DoNothing()<bar>call <SID>DoLast()<bar>delfunc <SID>DoNothing<bar>delfunc <SID>DoLast<cr>
end: