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acctyear.prg
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1991-08-15
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101 lines
/*
* File......: ACCTYEAR.PRG
* Author....: Jo W. French dba Practical Computing
* CIS ID....: 74731,1751
* Date......: $Date: 15 Aug 1991 23:02:40 $
* Revision..: $Revision: 1.2 $
* Log file..: $Logfile: E:/nanfor/src/acctyear.prv $
*
* The functions contained herein are the original work of Jo W. French
* and are placed in the public domain.
*
* Modification history:
* ---------------------
*
* $Log: E:/nanfor/src/acctyear.prv $
*
* Rev 1.2 15 Aug 1991 23:02:40 GLENN
* Forest Belt proofread/edited/cleaned up doc
*
* Rev 1.1 14 Jun 1991 19:50:48 GLENN
* Minor edit to file header
*
* Rev 1.0 01 Apr 1991 01:00:28 GLENN
* Nanforum Toolkit
*
*/
/* $DOC$
* $FUNCNAME$
* FT_ACCTYEAR()
* $CATEGORY$
* Date/Time
* $ONELINER$
* Return accounting year data
* $SYNTAX$
* FT_ACCTYEAR( [ <dGivenDate> ] ) -> aDateInfo
* $ARGUMENTS$
* <dGivenDate> is any valid date in any date format. Defaults
* to current system date if not supplied.
* $RETURNS$
* A three element array containing the following data:
*
* aDateInfo[1] - The year as a character string "YYYY"
* aDateInfo[2] - The beginning date of the accounting year
* aDateInfo[3] - The ending date of the accounting year
* $DESCRIPTION$
* FT_ACCTYEAR() creates an array containing data about the
* accounting year containing the given date.
*
* An accounting period has the following characteristics:
*
* If the first week of the period contains 4 or more 'work'
* days, it is included in the period; otherwise, the first
* week was included in the prior period.
*
* If the last week of the period contains 4 or more 'work'
* days it is included in the period; otherwise, the last week
* is included in the next period. This results in 13 week
* 'quarters' and 4 or 5 week 'months'. Every 5 or 6 years, a
* 'quarter' will contain 14 weeks and the year will contain 53
* weeks.
* $EXAMPLES$
* // get info about accounting year containing 9/15/90
* aDateInfo := FT_ACCTYEAR( CTOD("09/15/90") )
* ? aDateInfo[1] // 1990
* ? aDateInfo[2] // 12/31/89 beginning of year
* ? aDateInfo[3] // 12/29/90 end of year
* $SEEALSO$
* FT_DATECNFG() FT_ACCTWEEK() FT_ACCTMONTH() FT_ACCTQTR()
* $END$
*/
FUNCTION FT_ACCTYEAR(dGivenDate)
LOCAL nYTemp, aRetVal
dGivenDate := IIF(VALTYPE(dGivenDate) != 'D', DATE(), dGivenDate)
aRetVal := FT_YEAR(dGivenDate)
nYTemp := VAL(aRetVal[1])
aRetVal[2] := FT_ACCTADJ(aRetVal[2])
aRetVal[3] := FT_ACCTADJ(aRetVal[3], .T. )
IF dGivenDate >= aRetVal[2] .AND. dGivenDate <= aRetVal[3]
* All Ok.
ELSEIF dGivenDate < aRetVal[2]
aRetVal := FT_YEAR(FT_MADD(dGivenDate, -1))
nYTemp --
aRetVal[2] := FT_ACCTADJ(aRetVal[2])
aRetVal[3] := FT_ACCTADJ(aRetVal[3], .T. )
ELSE
aRetVal := FT_YEAR(FT_MADD(dGivenDate,1))
nYTemp ++
aRetVal[2] := FT_ACCTADJ(aRetVal[2])
aRetVal[3] := FT_ACCTADJ(aRetVal[3], .T. )
ENDIF
aRetVal[1] := STR(nYTemp,4)
RETURN aRetVal