mSL menus

Notes:
      +: repetition
     []: optional
     <>: non-literal
      |: OR
      &: AND
    (N): indicates a reference to a note

    Spaces(\x20|chr 32) between items are required

Menu Definition
    Valid
        menu
        menu <targetlist>
        menu <targetlist> { }
        menu <targetlist> {
          <body> }
        menu <targetlist> {
          <body>
        }
        menu <targetlist> {
          <body>
        } <text>(1)

        (1) Text will be processed as part of the menu body


    Invalid
        menu{
        menu {}
        menu <targetlist>{
        menu <targetlist> {}
        menu <targetlist> {<non-space & non-EOL>(1)
        menu <targetlist> { <text>(2)
        menu <targetlist> {
            <body>
        <non-space & non-EOL>}(1)
        menu <targetlist> {
          <body>
        }<non-space & non-EOL>(1)

        (1) Will cause mIRC to miss-match brackets
        (2) Any trailing text at the end of the definition causes the entire menu definition to be invalid


Menu Body
    [.+]<name>(1)
    [.+]<name>:(2)
    [.+]<name>:<body>
    [.+]:[<body>](2)

    (1) mIRC will disable the option when the menu is opened
    (2) mIRC will skip the item when preparing the menu