I use vim. I have a requirement to use 80 or fewer columns. This fix from http://stackoverflow.com/questions/235439/vim-80-column-layout-concerns works great:
highlight OverLength ctermbg=red ctermfg=white guibg=#592929
match OverLength /\%81v.*/
The first file I open looks fine. But when I
:tabedit some/other/file
some/other/file doesn't have the highlight settings and I have to enter them manually. How do I keep the highlighting settings for files I :tabedit?