patch 8.1.0636: line2byte() gives wrong values with text properties commit https://github.com/vim/vim/commit/b413d2e6a8cc7b1611a41bfa9462b986393ca5fe Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 25 23:15:46 2018 +0100 patch 8.1.0636: line2byte() gives wrong values with text properties Problem: line2byte() gives wrong values with text properties. (Bjorn Linse) Solution: Compute byte offsets differently when text properties were added. (closes #3718)

"Test for benchmarking the RE engine

so small.vim
if !has("reltime") | finish | endif
func! Measure(file, pattern, arg)
	for re in range(3)
	    let sstart=reltime()
	    let cmd=printf("../vim -u NONE -N --cmd ':set re=%d'".
		\ " -c 'call search(\"%s\", \"\", \"\", 10000)' -c ':q!' %s", re, escape(a:pattern, '\\'), empty(a:arg) ? '' : a:arg)
	    call system(cmd. ' '. a:file)
	    $put =printf('file: %s, re: %d, time: %s', a:file, re, reltimestr(reltime(sstart)))
	endfor
endfunc