csharp.cs

    // this is a single-line comment
    // NOTE ### FIXME TODO

    /* this is a
       multi-line comment
    */

    /* this is another
     * multiline comment
     * NOTE ### FIXME TODO
     */

    /** this is another
     * multiline comment
     * NOTE ### FIXME TODO
     */

    // simple assignment
    var i = 5;

    var j = // assignment missing, still should be nice highlighting
    var k   // assignment missing, still should be nice highlighting

    // test a string
    var s = "Hello World!";

    // arr is an array
    var arr = new[] { 0, 1, 2, 3, 4 };

    // expr is compiled as IEnumerable<Customer>
    // or perhaps IQueryable<Customer>
    var expr =
        from c in customers
        where c.City == "London"
        select c;

    // compiled anonymous type
    var anon = new { Country = "Germany", Inhabitants = 80000000 };