hook global BufCreate .+\.eml %{ set-option buffer filetype mail } hook global WinSetOption filetype=mail %{ require-module mail map buffer normal :diff-jump hook -once -always window WinSetOption filetype=.* %{ unmap buffer normal :diff-jump } } hook -group mail-highlight global WinSetOption filetype=mail %{ add-highlighter window/mail ref mail hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/mail } } provide-module mail %{ require-module diff add-highlighter shared/mail group add-highlighter shared/mail/ regex ^(From|To|Cc|Bcc|Subject|Reply-To|In-Reply-To|References|Date):([^\n]*(?:\n\h+[^\n]+)*)$ 1:keyword 2:attribute add-highlighter shared/mail/ regex <[^@>]+@.*?> 0:string add-highlighter shared/mail/ regex ^>.*?$ 0:comment }