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This closes #1006, new fn: MONTH ref #65 

Co-authored-by: xuri <xuri.me@gmail.com>
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Stani 2021-08-21 14:15:53 +02:00 committed by GitHub
parent 4d716fa7ed
commit 9b55f4f9f0
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2 changed files with 45 additions and 1 deletions
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31
calc.go
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@ -504,6 +504,7 @@ type formulaFuncs struct {
// VAR.P
// VARP
// VLOOKUP
// YEAR
//
func (f *File) CalcCellValue(sheet, cell string) (result string, err error) {
var (
@ -6445,6 +6446,36 @@ func (fn *formulaFuncs) MONTH(argsList *list.List) formulaArg {
return newNumberFormulaArg(float64(timeFromExcelTime(num.Number, false).Month()))
}
// YEAR function returns an integer representing the year of a supplied date.
// The syntax of the function is:
//
// YEAR(serial_number)
//
func (fn *formulaFuncs) YEAR(argsList *list.List) formulaArg {
if argsList.Len() != 1 {
return newErrorFormulaArg(formulaErrorVALUE, "YEAR requires exactly 1 argument")
}
arg := argsList.Front().Value.(formulaArg)
num := arg.ToNumber()
if num.Type != ArgNumber {
dateString := strings.ToLower(arg.Value())
if !isDateOnlyFmt(dateString) {
if _, _, _, _, _, err := strToTime(dateString); err.Type == ArgError {
return err
}
}
year, _, _, _, err := strToDate(dateString)
if err.Type == ArgError {
return err
}
return newNumberFormulaArg(float64(year))
}
if num.Number < 0 {
return newErrorFormulaArg(formulaErrorNUM, "YEAR only accepts positive argument")
}
return newNumberFormulaArg(float64(timeFromExcelTime(num.Number, false).Year()))
}
// NOW function returns the current date and time. The function receives no
// arguments and therefore. The syntax of the function is:
//

15
calc_test.go
View File

@ -965,6 +965,13 @@ func TestCalcCellValue(t *testing.T) {
// MONTH
"=MONTH(42171)": "6",
"=MONTH(\"31-May-2015\")": "5",
// YEAR
"=YEAR(15)": "1900",
"=YEAR(\"15\")": "1900",
"=YEAR(2048)": "1905",
"=YEAR(42171)": "2015",
"=YEAR(\"29-May-2015\")": "2015",
"=YEAR(\"05/03/1984\")": "1984",
// Text Functions
// CHAR
"=CHAR(65)": "A",
@ -1986,10 +1993,16 @@ func TestCalcCellValue(t *testing.T) {
"=DAY(\"0-January-1900\")": "#VALUE!",
// MONTH
"=MONTH()": "MONTH requires exactly 1 argument",
"=MONTH(43891,43101)": "MONTH requires exactly 1 argument",
"=MONTH(0,0)": "MONTH requires exactly 1 argument",
"=MONTH(-1)": "MONTH only accepts positive argument",
"=MONTH(\"text\")": "#VALUE!",
"=MONTH(\"January 25, 100\")": "#VALUE!",
// YEAR
"=YEAR()": "YEAR requires exactly 1 argument",
"=YEAR(0,0)": "YEAR requires exactly 1 argument",
"=YEAR(-1)": "YEAR only accepts positive argument",
"=YEAR(\"text\")": "#VALUE!",
"=YEAR(\"January 25, 100\")": "#VALUE!",
// NOW
"=NOW(A1)": "NOW accepts no arguments",
// TODAY