C     STRIP TRAILING BLANKS FROM EACH LINE OF A TEXT FILE
C     1981-OCT-27 -- JWB -- REVISION 0
C     72-CHARACTER PER LINE INPUT VERSION
C     INPUT - FILE 9
C     OUTPUT- FILE 10
C
      CHARACTER*72 LINBUF
      CHARACTER*1 CHRBUF(72), BLANK
      EQUIVALENCE (LINBUF,CHRBUF(1))
      INTEGER LINLEN
      LOGICAL EOF, ERRFLG
      DATA BLANK / ' ' /
C
C$CCC --------------------------------------------------
C
      OPEN (9,  FORM='FORMATTED', ACCESS='SEQUENTIAL',
     *STATUS='OLD')
      OPEN (10, FORM='FORMATTED', ACCESS='SEQUENTIAL',
     *STATUS='NEW', CARRIAGECONTROL='LIST', RECORDTYPE='VARIABLE')
      EOF    = .FALSE.
      NLINES = 0
      DO UNTIL (EOF)
      READ (9, 1000, EOF=END, ERRFLG=ERR) LINBUF
 1000 FORMAT(A)
      IF (.NOT.(EOF.OR.ERRFLG)) THEN
      NLINES = NLINES + 1
      LINLEN = 1
      DO FOR I=1,72
      IF (CHRBUF(I).NE.BLANK) LINLEN = I
      END FOR
      WRITE (10,1000) LINBUF(1:LINLEN)
      IF (MOD(NLINES,100).EQ.0) PRINT *, LINBUF(1:LINLEN)
      ENDIF
      END UNTIL
      PRINT *, NLINES, ' LINES.'
      STOP
      END PROGRAM