le premier lun/mar/.../dim d'un mois fourni en date
bomonth(d)
debut du mois
eomonth(d)
fin du mois
Code source :
*--------------------------------------------------------------------------- && First mon/tue/.../sun of year function Year_FirstDay(YearNumber, DayNumber)
endfunc *--------------------------------------------------------------------------- && First mon/tue/.../sun of year, month function YearMonth_FirstDay(YearNumber, MonthNumber, DayNumber)
endfunc *--------------------------------------------------------------------------- && First mon/tue/.../sun of a month function Date_Month_First(d, DayNumber)