    {MT01} !{file must start with {MT01}}

    !{ This is a comment. }
    !{ The file contains any number of sections; each starts with {section name}. }
    !{ {MT01} starts the header (the current section). }

    {First section}
    !{We're now in "First section".}

    !{Data is entered with tags of the form: <type|name=value>; e.g.: }
    <char[]|string="A string.">
    < int[] | fifteen = [15, 0xF] >
    <double|number = [2.1]>

    !{To comment out a tag, just prefix with ! : }
    !<char | hidden tag= 'h' >
    !{But the formatting must still be correct (don't do: <char[]|invalid string=" (no ending quote)> )}