99 lines
2.9 KiB
Plaintext
99 lines
2.9 KiB
Plaintext
/*
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* File......: ACCTYEAR.PRG
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* Author....: Jo W. French dba Practical Computing
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* CIS ID....: 74731,1751
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*
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* The functions contained herein are the original work of Jo W. French
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* and are placed in the public domain.
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*
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* Modification history:
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* ---------------------
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*
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* Rev 1.3 28 Sep 1992 00:29:14 GLENN
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* Jo French clean up.
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*
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* Rev 1.2 15 Aug 1991 23:02:40 GLENN
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* Forest Belt proofread/edited/cleaned up doc
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*
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* Rev 1.1 14 Jun 1991 19:50:48 GLENN
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* Minor edit to file header
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*
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* Rev 1.0 01 Apr 1991 01:00:28 GLENN
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* Nanforum Toolkit
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*
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*/
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/* $DOC$
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* $FUNCNAME$
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* FT_ACCTYEAR()
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* $CATEGORY$
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* Date/Time
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* $ONELINER$
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* Return accounting year data
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* $SYNTAX$
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* FT_ACCTYEAR( [ <dGivenDate> ] ) -> aDateInfo
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* $ARGUMENTS$
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* <dGivenDate> is any valid date in any date format. Defaults
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* to current system date if not supplied.
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* $RETURNS$
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* A three element array containing the following data:
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*
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* aDateInfo[1] - The year as a character string "YYYY"
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* aDateInfo[2] - The beginning date of the accounting year
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* aDateInfo[3] - The ending date of the accounting year
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* $DESCRIPTION$
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* FT_ACCTYEAR() creates an array containing data about the
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* accounting year containing the given date.
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*
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* An accounting period has the following characteristics:
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*
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* If the first week of the period contains 4 or more 'work'
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* days, it is included in the period; otherwise, the first
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* week was included in the prior period.
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*
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* If the last week of the period contains 4 or more 'work'
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* days it is included in the period; otherwise, the last week
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* is included in the next period. This results in 13 week
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* 'quarters' and 4 or 5 week 'months'. Every 5 or 6 years, a
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* 'quarter' will contain 14 weeks and the year will contain 53
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* weeks.
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* $EXAMPLES$
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* // get info about accounting year containing 9/15/90
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* aDateInfo := FT_ACCTYEAR( CTOD("09/15/90") )
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* ? aDateInfo[1] // 1990
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* ? aDateInfo[2] // 12/31/89 beginning of year
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* ? aDateInfo[3] // 12/29/90 end of year
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* $SEEALSO$
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* FT_DATECNFG() FT_ACCTWEEK() FT_ACCTMONTH() FT_ACCTQTR()
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* $END$
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*/
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FUNCTION FT_ACCTYEAR(dGivenDate)
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LOCAL nYTemp, aRetVal
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IF( VALTYPE(dGivenDate) != 'D', dGivenDate := DATE(), )
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aRetVal := FT_YEAR(dGivenDate)
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nYTemp := VAL(aRetVal[1])
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aRetVal[2] := FT_ACCTADJ(aRetVal[2])
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aRetVal[3] := FT_ACCTADJ(aRetVal[3], .T. )
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IF dGivenDate < aRetVal[2]
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aRetVal := FT_YEAR(FT_MADD(dGivenDate, -1))
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nYTemp --
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aRetVal[2] := FT_ACCTADJ(aRetVal[2])
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aRetVal[3] := FT_ACCTADJ(aRetVal[3], .T. )
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ELSEIF dGivenDate > aRetVal[3]
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aRetVal := FT_YEAR(FT_MADD(dGivenDate, 1))
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nYTemp ++
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aRetVal[2] := FT_ACCTADJ(aRetVal[2])
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aRetVal[3] := FT_ACCTADJ(aRetVal[3], .T. )
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ENDIF
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aRetVal[1] := STR(nYTemp,4)
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RETURN aRetVal
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