4 filename: "(.*/mutt-.*|\\.eml)$"
5 header: "^From .* \\d+:\\d+:\\d+ \\d+"
9 - identifier: "^[^[:space:]]+:"
10 - preproc: "^List-(Id|Archive|Subscribe|Unsubscribe|Post|Help):"
11 - constant: "^(To|From):"
16 - constant.specialChar: "\\\\."
17 - statement: "<?[^@[:space:]]+@[^[:space:]]+>?"