7f90924706
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104 lines
3 KiB
Fortran
104 lines
3 KiB
Fortran
SUBROUTINE ST_ILST ( string, sep, idef, nexp, iarr, num, iret )
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C************************************************************************
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C* ST_ILST *
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C* *
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C* This subroutine breaks a string containing a list of integers into *
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C* an array of integers. The separator for the integers is input as *
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C* SEP. If the separator is a blank, multiple blanks will be changed *
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C* to single blanks before the string is processed. If null strings *
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C* are encountered or fewer than NEXP strings are found in the *
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C* string, the appropriate IARR locations are set to IDEF. *
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C* *
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C* ST_ILST ( STRING, SEP, IDEF, NEXP, IARR, NUM, IRET ) *
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C* *
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C* Input parameters: *
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C* STRING CHAR* String *
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C* SEP CHAR*1 Separator *
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C* IDEF INTEGER Default value *
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C* NEXP INTEGER Number of expected values *
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C* *
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C* Output parameters: *
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C* IARR (NUM) INTEGER Array of integer values *
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C* NUM INTEGER Number of values returned *
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C* IRET INTEGER Return code *
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C* 1 = more than NEXP values *
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C* 0 = normal return *
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C* -3 = invalid substring *
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C** *
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C* Log: *
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C* M. Goodman/RDS 10/84 Original source for STLIST *
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C* M. desJardins/GSFC 11/84 *
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C* M. desJardins/GSFC 2/85 Modified for ST_ILST *
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C* M. desJardins/GSFC 6/88 Documentation *
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C* L. Sager/NCEP 2/96 Increased size of strbuf *
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C************************************************************************
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CHARACTER*(*) string, sep
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INTEGER iarr (*)
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C*
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CHARACTER strbuf*160, cchar*1
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C------------------------------------------------------------------------
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iret = 0
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num = 0
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cccc print*, ' String -----> ', string
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C
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C* Remove blanks from the input string if the separator is not
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C* a blank.
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C
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IF ( sep .ne. ' ' ) THEN
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CALL ST_RMBL ( string, strbuf, isize, iret )
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ELSE
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CALL ST_RXBL ( string, strbuf, isize, iret )
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END IF
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C
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C* Initialize output array.
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C
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DO i = 1, nexp
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iarr (i) = idef
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END DO
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C
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C* Check for zero length input string.
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C
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ccc print*, ' isize = ', isize
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IF ( isize .eq. 0 ) THEN
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num = 0
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C
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C* Check for separator and find list elements.
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C
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ELSE
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cchar = sep
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iend = 0
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ibegin = 1
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DO WHILE ( ibegin .le. isize )
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loc = INDEX ( strbuf (ibegin:), cchar )
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IF ( loc .eq. 0 ) THEN
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iend = isize + 1
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ELSE
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iend = ibegin + loc - 1
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END IF
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C
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C* Move list element into output list. Check that num <= nexp.
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C
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IF ( num .ge. nexp ) THEN
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iret = 1
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ELSE
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num = num + 1
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IF ( ibegin .ne. iend ) THEN
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CALL ST_NUMB ( strbuf (ibegin : iend-1), ival,
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+ ier )
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IF ( ier .eq. 0 ) THEN
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iarr (num) = ival
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ELSE
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iret = -3
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END IF
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END IF
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END IF
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C*
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ibegin = iend + 1
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END DO
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ccc print*, ' IARR =======> ', String, num, iarr(1), iarr(2)
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END IF
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cccc print*, ' *********************************************************** '
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C*
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RETURN
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END
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