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PRSNEW

       SUBROUTINE  PRSNEW
 C$    (Parse - New)
 C$    Initialize for parsing of a new command line.  This routine
 C$    should be called  when a new  command line is  begun, or  a
 C$    reparse has been called for.
 C$
 C$    Internal pointers are set, any  prompt in effect is  typed,
 C$    and the first new input  character is inspected.  If it  is
 C$    an EDEDEL character, then the user has requested  redisplay
 C$    of a previous command  line up to the  point of error.   If
 C$    parsing of that command line had completed via the parse of
 C$    the end-of-line,  the request  is  ignored and  the  EDEDEL
 C$    character deleted.  Otherwise, the  input pointer is  reset
 C$    to point to the end of the last field successfully  parsed,
 C$    and the line is redisplayed, allowing the user to  continue
 C$    typing on it.
 C$    (03-MAR-83)