93 lines
2.7 KiB
Fortran
93 lines
2.7 KiB
Fortran
C MEMBER FFA2F
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C-----------------------------------------------------------------------
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C
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C ROUTINE TO CONVERT CHARACTERS TO REAL*4 VALUES
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C
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SUBROUTINE FFA2F (IBUF,IPOS,IWIDTH,IDEC,NUM,XLOC,IERR)
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C
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CHARACTER*1 IBUF(1)
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CHARACTER*3 CHAR1,CHAR2
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CHARACTER*10 FMT
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CHARACTER*100 TEMP
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C
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REAL*4 XLOC(1)
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C
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C ================================= RCS keyword statements ==========
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CHARACTER*68 RCSKW1,RCSKW2
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DATA RCSKW1,RCSKW2 / '
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.$Source: /fs/hseb/ob72/wfo_rfc/precip_proc/source/gribit/src/RCS/ffa2f.f,v $
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. $', '
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.$Id: ffa2f.f,v 1.1 2006/05/03 13:43:58 gsood Exp $
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. $' /
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C ===================================================================
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C
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C
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C
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IERR=0
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TEMP=' '
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C
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IF (NUM.LT.1) GO TO 900
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C
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C CHECK IF VALID NUMBER OF DECIMAL PLACES
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IF (IDEC.GT.-1.AND.IDEC.LE.IWIDTH) GO TO 5
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IDEC=0
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IERR=0
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C
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C FILL FMT WITH PROPER VALUE BASED ON IWIDTH AND IDEC
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5 IF (IWIDTH.LT.1.OR.IWIDTH.GT.LEN(TEMP)) GO TO 900
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WRITE (CHAR1,'(I3)') IWIDTH
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WRITE (CHAR2,'(I3)') IDEC
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FMT='(F'//CHAR1//'.'//CHAR2//')'
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C
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C LOOP FOR EACH NUMBER
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IE=IPOS-1
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DO 100 I=1,NUM
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IS=IE+1
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IE=IE+IWIDTH
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C COPY ONE NUMBER FROM IBUF INTO TEMP
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J=1
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DO 10 K=IS,IE
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TEMP(J:J)=IBUF(K)
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J=J+1
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10 CONTINUE
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C CHANGE ALL BLANKS TO ZEROES
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DO 15 J=1,IWIDTH
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IF (TEMP(J:J).EQ.' ') TEMP(J:J)='0'
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IF (TEMP(J:J).GT.'9'.OR.TEMP(J:J).LT.'0') GO TO 12
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C NUMERIC VALUE - CONTINUE
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GO TO 15
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C NON-NUMERIC VALUE - SEE IF '+', '-' OR '.'
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12 IF (TEMP(J:J).EQ.'-'.OR.TEMP(J:J).EQ.'+') GO TO 15
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IF (TEMP(J:J).EQ.'.') GO TO 15
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C SET VALUE TO ZERO AND SET ERROR FLAG TO ONE
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TEMP(J:J)='0'
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IERR=1
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15 CONTINUE
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C SEE IF NEED TO MOVE A '+' OR '-' SIGN TO FIRST CHARACTER IN TEMP
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IF (IWIDTH.EQ.1) GO TO 19
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IF (TEMP(1:1).NE.'0') GO TO 19
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C SCAN TEMP FOR '+' OR '-'
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DO 18 J=2,IWIDTH
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IF (TEMP(J:J).EQ.'0') GO TO 18
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IF (TEMP(J:J).EQ.'-'.OR.TEMP(J:J).EQ.'+') GO TO 17
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C FIRST NONZERO CHARACTER IS NOT '+' OR '-' SKIP TO CONVERSION
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GO TO 19
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C '+' OR '-' FOUND - MOVE TO FIRST CHARACTER
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17 TEMP(1:1)=TEMP(J:J)
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TEMP(J:J)='0'
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GO TO 19
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18 CONTINUE
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C CONVERT TEMP TO NUMERIC VALUE - IF ERROR SET NUMERIC VALUE TO 0
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19 READ (TEMP(1:IWIDTH),FMT,ERR=20) XLOC(I)
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GO TO 100
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20 XLOC(I)=0.
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IERR=1
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100 CONTINUE
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C
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GO TO 999
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C
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900 IERR=1
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C
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999 RETURN
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C
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END
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