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DCX Routines, DCX$COMPRESS_DATA, Description
 *Conan The Librarian 

    The DCX$COMPRESS_DATA routine compresses a data record. Call this
    routine for each data record to be compressed. As you compress
    each record, write the compressed record to the file containing
    the compression/expansion map. For each record, write the length
    of the record and substring string containing the record to the
    same file.
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