ula_struct

Source: hsio/ula_struct.pro

 ULA_STRUCT
   Will take a byte array of data (read by READ_LANFILE or other suitable
   means) and load it into a pair of structures, firstly a header and then
   the appropriate type for the body of the data.

 Call:
   val = ula_struct(data, hds, dds)

 Return Value:
       val     int     The return value (-1 = error, 0 = type not matched,
                       1 = rate block returned, 2 = MFSA block, 3 = PHA block,
                       4 = PTRK block, 5 = PSUM block, 6 = MFSS block)

 Arguments:
       data    byte    Input   The data from which the structures are to be
                               extracted.
       hds     struct  Output  The structure containing the header. Will
                               always be of type "ula_rh".
       dds     struct  Output  The structure containing the data. Will be one
                               of "ula_rb", "ula_mfsa",  "ula_phar",
                               "trk_ptrk", "pha_psum" or "mfs_mfss".

 Keyword:
       only    string  input   Only bother to return structures if of
                               specified type, one or more types may
                               be given.

 History:
       Prototype: 22/1/91; SJT
       Always convert header properly: 30/7/91; SJT
       Add PTRK track record: 22/11/91; SJT
        Add PSUM and MFSS records: 23/6/92; SJT