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DATECNFG.PRG
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/*
* File......: DATECNFG.PRG
* Author....: Jo W. French dba Practical Computing
* CIS ID....: 74730,1751
* Date......: $Date: 28 Sep 1992 00:34:08 $
* Revision..: $Revision: 1.3 $
* Log file..: $Logfile: C:/nanfor/src/datecnfg.prv $
*
* The functions contained herein are the original work of Jo W. French
* and are placed in the public domain.
*
* Modification history:
* ---------------------
*
* $Log: C:/nanfor/src/datecnfg.prv $
*
* Rev 1.3 28 Sep 1992 00:34:08 GLENN
* Jo French clean up.
*
* Rev 1.2 15 Aug 1991 23:05:10 GLENN
* Forest Belt proofread/edited/cleaned up doc
*
* Rev 1.1 14 Jun 1991 19:51:26 GLENN
* Minor edit to file header
*
* Rev 1.0 01 Apr 1991 01:01:00 GLENN
* Nanforum Toolkit
*
*/
#ifdef FT_TEST
********************************************************************
*
* NOTES: 1) The date functions are 'international'; i.e., the
* system date format is maintained, although ANSI is
* temporarily used within certain functions.
*
* 2) The date functions fall into two categories:
*
* a) Calendar or fiscal periods.
* A calendar or fiscal year is identified by the year()
* of the last date in the year.
*
* b) Accounting Periods. 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.
*
* 3) The date functions require the presence of two variables:
*
* a) cFY_Start is a character string used to define the
* first day of a calendar or fiscal year. It's format
* is ANSI; e.g., "1980.01.01" defines a calendar year,
* "1980.10.01" defines a fiscal year, starting October 1.
*
* The year may be any valid year. It's value has no
* effect on the date functions. The day is assumed to be
* less than 29. See function: FT_DATECNFG().
*
* B) nDow_Start is a number from 1 to 7 which defines the
* starting day, DOW(), of a work week; e.g., 1 == Sunday.
*
* See function: FT_DATECNFG()
*
* COMPILE ALL PROGRAMS WITH /N /W /A
*
********************************************************************
FUNCTION DEMO()
LOCAL nNum, dDate, aTestData := {}, aTemp, cFY_Start, nDOW_Start
* SET DATE American // User's normal date format
aTemp := FT_DATECNFG() // Get/Set cFY_Start & nDOW_Start.
* aTemp := FT_DATECNFG("03/01/80", 1) // Date string in user's format.
cFY_Start := aTemp[1] // See FT_DATECNFG() in FT_DATE0.PRG
NDOW_START := ATEMP[2] // FOR PARAMETERS.
DDATE := DATE()
* dDate := CTOD("02/29/88") // Test date, in user's normal date format
cls
? "Given Date: "
?? dDate
?? " cFY_Start: "+ cFY_Start
?? " nDOW_Start:" + STR(nDOW_Start,2)
? "---- Fiscal Year Data -----------"
aTestData := FT_YEAR(dDate)
? "FYYear ", aTestData[1]+" ", aTestData[2], aTestData[3]
aTestData := FT_QTR(dDate)
? "FYQtr ", aTestData[1], aTestData[2], aTestData[3]
nNum := VAL(SUBSTR(aTestData[1],5,2))
aTestData := FT_QTR(dDate,nNum)
? "FYQtr "+STR(nNum,2), aTestData[1], aTestData[2], aTestData[3]
aTestData := FT_MONTH(dDate)
? "FYMonth ", aTestData[1], aTestData[2], aTestData[3]
nNum := VAL(SUBSTR(aTestData[1],5,2))
aTestData := FT_MONTH(dDate,nNum)
? "FYMonth "+STR(nNum,2), aTestData[1], aTestData[2], aTestData[3]
aTestData := FT_WEEK(dDate)
? "FYWeek ", aTestData[1], aTestData[2], aTestData[3]
nNum := VAL(SUBSTR(aTestData[1],5,2))
aTestData := FT_WEEK(dDate,nNum)
? "FYWeek "+STR(nNum,2), aTestData[1], aTestData[2], aTestData[3]
aTestData := FT_DAYOFYR(dDate)
? "FYDay ", aTestData[1], aTestData[2], aTestData[3]
nNum := VAL(SUBSTR(aTestData[1],5,3))
aTestData := FT_DAYOFYR(dDate,nNum)
? "FYDAY "+STR(nNum,3), aTestData[1], aTestData[2], aTestData[3]
?
? "---- Accounting Year Data -------"
aTestData := FT_ACCTYEAR(dDate)
? "ACCTYear ", aTestData[1]+" ", aTestData[2], aTestData[3],;
STR( (aTestData[3] - aTestData[2] + 1) /7, 3 ) + " Weeks"
aTestData := FT_ACCTQTR(dDate)
? "ACCTQtr ", aTestData[1], aTestData[2], aTestData[3],;
STR( (aTestData[3] - aTestData[2] + 1) /7, 3 ) + " Weeks"
nNum := VAL(SUBSTR(aTestData[1],5,2))
aTestData := FT_ACCTQTR(dDate,nNum)
? "ACCTQtr "+STR(nNum,2), aTestData[1], aTestData[2], aTestData[3]
aTestData := FT_ACCTMONTH(dDate)
? "ACCTMonth ", aTestData[1], aTestData[2], aTestData[3],;
STR( (aTestData[3] - aTestData[2] + 1) /7, 3 ) + " Weeks"
nNum := VAL(SUBSTR(aTestData[1],5,2))
aTestData := FT_ACCTMONTH(dDate,nNum)
? "ACCTMonth"+STR(nNum,2), aTestData[1], aTestData[2], aTestData[3]
aTestData := FT_ACCTWEEK(dDate)
? "ACCTWeek ", aTestData[1], aTestData[2], aTestData[3]
nNum := VAL(SUBSTR(aTestData[1],5,2))
aTestData := FT_ACCTWEEK(dDate,nNum)
? "ACCTWeek "+STR(nNum,2), aTestData[1], aTestData[2], aTestData[3]
aTestData := FT_DAYOFYR(dDate,,.T.)
? "ACCTDay ", aTestData[1], aTestData[2], aTestData[3]
nNum := VAL(SUBSTR(aTestData[1],5,3))
aTestData := FT_DAYOFYR(dDate,nNum,.T.)
? "ACCTDay "+STR(nNum,3), aTestData[1], aTestData[2], aTestData[3]
WAIT
FT_CAL(dDate)
FT_CAL(dDate,1)
RETURN NIL
* DEMO Monthly Calendar function.
* nType : 0 = FT_MONTH, 1 = FT_ACCTMONTH
*
FUNCTION FT_CAL(dGivenDate,nType)
LOCAL nTemp, dTemp, aTemp, cFY_Start, dStart, dEnd
aTemp := FT_DATECNFG()
cFY_Start := aTemp[1]
IF dGivenDate == NIL .OR. !VALTYPE(dGivenDate) $ 'ND'
dGivenDate := DATE()
ELSEIF VALTYPE(dGivenDate) == 'N'
nType := dGivenDate
dGivenDate := DATE()
ENDIF
nType := IF(nType == NIL .OR. VALTYPE(nType) != 'N', 0, nType)
IF nType == 0
IF SUBSTR(cFY_Start,6,5) == "01.01"
? " Calendar Month Calendar containing " + DTOC(dGivenDate)
ELSE
? " Fiscal Month Calendar containing " + DTOC(dGivenDate)
ENDIF
aTemp := FT_MONTH(dGivenDate)
dStart := aTemp[2]
dEnd := aTemp[3]
aTemp[2] -= FT_DAYTOBOW(aTemp[2])
aTemp[3] += 6 - FT_DAYTOBOW(aTemp[3])
ELSE
? " Accounting Month Calendar containing " + DTOC(dGivenDate)
aTemp := FT_ACCTMONTH(dGivenDate)
ENDIF
?
dTemp := aTemp[2]
FOR nTemp := 0 to 6
?? PADC( CDOW(dTemp + nTemp),10)
NEXT
?
WHILE dTemp <= aTemp[3]
FOR nTemp = 1 TO 7
?? " "
IF nType == 0 .AND. (dTemp < dStart .or. dTemp > dEnd)
?? SPACE(8)
ELSE
?? dTemp
ENDIF
?? " "
dTemp ++
NEXT
?
END
RETURN NIL
#endif
/* $DOC$
* $FUNCNAME$
* FT_DATECNFG()
* $CATEGORY$
* Date/Time
* $ONELINER$
* Set beginning of year/week for FT_ date functions
* $SYNTAX$
* FT_DATECNFG( [ <cFYStart> ], [ <nDow> ] ) -> aDateInfo
* $ARGUMENTS$
* <cFYStart> is a character date string in the user's system date
* format, i.e., the same as the user would enter for CTOD(). If
* this argument is NIL, the current value is unchanged.
*
* Note: The year portion of the date string must be present and
* be a valid year; however, it has no real meaning.
*
* <nDow> is a number from 1 to 7 (1 = Sunday) indicating the
* desired start of a work week. If this argument is NIL,
* the current value is unchanged.
*
* $RETURNS$
* A 2-element array containing the following information:
*
* aDateInfo[1] - an ANSI date string indicating the beginning
* date of the year. Only the month and day are
* meaningful.
*
* aDateInfo[2] - the number of the first day of the week
* (1 = Sunday)
*
* $DESCRIPTION$
* FT_DATECNFG() is called internally by many of the date functions
* in the library to determine the beginning of year date and
* beginning of week day.
*
* The default beginning of the year is January 1st and the default
* beginning of the week is Sunday (day 1). Either or both of these
* settings may be changed by calling FT_DATECNFG() with the proper
* arguments. They will retain their values for the duration of the
* program or until they are changed again by a subsequent call to
* FT_DATECNFG().
*
* It is not necessary to call FT_DATECNFG() unless you need to
* change the defaults.
*
* FT_DATECNFG() affects the following library functions:
*
* FT_WEEK() FT_ACCTWEEK() FT_DAYTOBOW()
* FT_MONTH() FT_ACCTMONTH() FT_DAYOFYR()
* FT_QTR() FT_ACCTQTR() FT_ACCTADJ()
* FT_YEAR() FT_ACCTYEAR()
* $EXAMPLES$
* // Configure library date functions to begin year on
* // July 1st.
*
* FT_DATECNFG("07/01/80") // year is insignificant
*
* // Examples of return values:
*
* // System date format: American aArray[1] aArray[2]
*
* aArray := FT_DATECNFG() // '1980.01.01' 1 (Sun.)
* aArray := FT_DATECNFG('07/01/80') // '1980.07.01' 1 (Sun.)
* aArray := FT_DATECNFG('07/01/80', 2) // '1980.07.01' 2 (Mon.)
* aArray := FT_DATECNFG( , 2 ) // '1980.01.01' 2 (Mon.)
*
* // System date format: British
*
* aArray := FT_DATECNFG('01/07/80', 2) // '1980.07.01' 2 (Mon.)
* $SEEALSO$
* FT_ACCTADJ()
* $END$
*/
FUNCTION FT_DATECNFG( cFYStart ,nDow )
STATIC aDatePar := { "1980.01.01", 1 }
LOCAL dCheck, cDateFormat := SET(_SET_DATEFORMAT)
IF VALTYPE( cFYStart ) == 'C'
dCheck := CTOD( cFYStart )
IF DTOC( dCheck ) != " "
/* No one starts a Fiscal Year on 2/29 */
IF MONTH(dCheck) == 2 .and. DAY(dcheck) == 29
dCheck --
ENDIF
SET(_SET_DATEFORMAT, "yyyy.mm.dd")
aDatePar[1] := DTOC(dCheck)
SET(_SET_DATEFORMAT, cDateFormat)
ENDIF
ENDIF
IF VALTYPE( nDow ) == 'N' .AND. nDow > 0 .AND. nDow < 8
aDatePar[2] := nDow
ENDIF
RETURN ACLONE( aDatePar )