-syn spell notoplevel
-syn match Constant "^\(\d\+-\d\+-\d\+\s\+\)\?\d\{2}:\d\{2}\(:\d\{2}\)\?"
-syn match Type " \* [-a-zA-Z0-9_|]*"
-syn match Label "<[ @~&+][-a-zA-Z0-9_|]*>"
-syn region Title start="^---" end="$"
-syn region Identifier start="-!-" end="$"
-syn region Comment start=":::" end="$"