patch 8.0.0290: cursor positioning wrong if wide character wraps commit https://github.com/vim/vim/commit/04e87b72c5fa88b7034a5b0ec0be6a7ad763e9d2 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Feb 1 21:23:10 2017 +0100 patch 8.0.0290: cursor positioning wrong if wide character wraps Problem: If a wide character doesn't fit at the end of the screen line, and the line doesn't fit on the screen, then the cursor position may be wrong. (anliting) Solution: Don't skip over wide character. (Christian Brabandt, closes #1408)

"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