syntax "EXIM" "(configure|exim\..*)$"

 color brightyellow,blue "^[A-Za-z0-0_]{1,}\:"
 color brightyellow,magenta "^begin [A-Za-z]{1,}$"
 color brightred "\b(deny|drop|discard)\b"
 color green "\baccept\b"
 color yellow "\b(warn|defer)\b"
 color brightgreen start="\{" end="\}"
 color brightgreen "(\$\{|\})"
 color brightwhite "\$[A-Za-z0-9_-]{1,}"
 color brightyellow "\b(yes|no|true|false)\b"
 color brightcyan "(\:|\||\(|\))"
 color brightmagenta "#.*"