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C $Id: range.f,v 1.2 1999/02/16 21:38:01 gdsjaar Exp $
C $Log: range.f,v $
C Revision 1.2  1999/02/16 21:38:01  gdsjaar
C Converted to read exodusII database format.  Somewhat tested, not
C ready for production yet.
C
C Revision 1.1.1.1  1991/02/21 15:45:22  gdsjaar
C NUMBERS: Greg Sjaardema, initial Unix release
C
c Revision 1.1  1991/02/21  15:45:21  gdsjaar
c Initial revision
c
      SUBROUTINE RANGE (LEN, LIST, IOMIN, IOMAX)
      LOGICAL LIST(*), INRNG
      INTEGER IRANGE(3)
      CHARACTER*80 LINE

      INRNG = .FALSE.
      IRINC = 0

      DO 10 I=1, LEN
         IF (LIST(I)) THEN
            IBEG = I+1
            LASTSL = I
            GO TO 20
         END IF
   10 CONTINUE

   20 CONTINUE
      DO 40 I = IBEG, LEN
         IF (LIST(I)) THEN
            IRINC1 = I - LASTSL
            IF (IRINC .EQ. 0) IRINC = IRINC1
            IF (.NOT. INRNG) THEN
               IRBEG = LASTSL
               IRINC = IRINC1
               INRNG = .TRUE.
            ELSE IF (INRNG .AND. IRINC1 .NE. IRINC) THEN
               IREND = I
               INRNG = .FALSE.
               IRANGE(1) = IRBEG
               IRANGE(2) = IREND - IRINC1
               IRANGE(3) = IRINC
               LINE = ' '
               CALL FFADDV (IRANGE, LINE)
               DO 30 IO = IOMIN, IOMAX
                  CALL LOGERR ('CMDSPEC', LINE(:LENSTR(LINE)), IO)
   30          CONTINUE
               IRINC = IRINC1
            END IF
            LASTSL = I
         END IF
   40 CONTINUE
      IRANGE(1) = IRBEG
      IRANGE(2) = LASTSL
      IRANGE(3) = IRINC
      LINE = ' '
      CALL FFADDV (IRANGE, LINE)
      DO 50 IO = IOMIN, IOMAX
         CALL LOGERR ('CMDSPEC', LINE(:LENSTR(LINE)), IO)
   50 CONTINUE
      RETURN
      END
