patch 8.0.0394: tabs are not aligned when scrolling horizontally commit https://github.com/vim/vim/commit/abc39ab642791ae3d22a524516eeedb673a95d9d Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 1 18:04:05 2017 +0100 patch 8.0.0394: tabs are not aligned when scrolling horizontally Problem: Tabs are not aligned when scrolling horizontally and a Tab doesn't fit. (Axel Bender) Solution: Handle a Tab as a not fitting character. (Christian Brabandt) Also fix that ":redraw" does not scroll horizontally to show the cursor. And fix the test that depended on the old behavior.

"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