face global Whitespace yellow+f
addhl global/ show-whitespaces -spc .
face global before_underline cyan
face global add_underline ,,magenta+c
face global remove_underline +a
addhl global/a regex <([^>]*)> 1:before_underline
addhl global/b regex [a-z] 0:add_underline
addhl global/c regex <([^>]*)> 1:remove_underline
addhl global/d regex <([^>]*)> 1:before_underline
