DDS past semantic check
DDS past full semantic check
Dataset {
    Int32 a;
    Structure {
        Int32 b;
        Float64 c;
        String d;
    } e;
    Structure {
        Int32 b;
        Float64 c;
        String d;
    } f;
    Grid {
      Array:
        Byte xy[x = 12][y = 12];
      Maps:
        Float64 x[12];
        Float64 y[12];
    } g;
    Sequence {
        Int16 j;
        Sequence {
            Int16 i;
        } h;
    } k;
} ascii_output_test;