Fix a v2.8.1 regression bug, error on duplicate rows, if conditional formatting or data validation has multiple cell range reference

- Update unit tests

adjust_test.go

@@ -1114,7 +1114,7 @@ func TestAdjustDataValidations(t *testing.T) {
 		// The double quote symbol in none formula data validation rules will be escaped in the Kingsoft WPS Office
 		formula := strings.ReplaceAll(fmt.Sprintf("\"option1, %s", strings.Repeat("\"", 9)), "\"", """)
 		ws.(*xlsxWorksheet).DataValidations.DataValidation[0].Formula1.Content = formula
-		f.RemoveCol("Sheet2", "A")
+		assert.NoError(t, f.RemoveCol("Sheet2", "A"))
 		dvs, err := f.GetDataValidations("Sheet1")
 		assert.NoError(t, err)
 		assert.Equal(t, formula, dvs[0].Formula1)

cell.go

@@ -506,7 +506,7 @@ func trimCellValue(value string, escape bool) (v string, ns xml.Attr) {
 	if escape {
 		var buf bytes.Buffer
 		enc := xml.NewEncoder(&buf)
-		enc.EncodeToken(xml.CharData(value))
+		_ = enc.EncodeToken(xml.CharData(value))
 		enc.Flush()
 		value = buf.String()
 	}

rows.go

@@ -691,26 +691,46 @@ func (f *File) DuplicateRowTo(sheet string, row, row2 int) error {
 	return err
 }
 
+// duplicateSQRefHelper provides a function to adjust conditional formatting and
+// data validations cell reference when duplicate rows.
+func duplicateSQRefHelper(row, row2 int, ref string) (string, error) {
+	if !strings.Contains(ref, ":") {
+		ref += ":" + ref
+	}
+	abs := strings.Contains(ref, "$")
+	coordinates, err := rangeRefToCoordinates(ref)
+	if err != nil {
+		return "", err
+	}
+	x1, y1, x2, y2 := coordinates[0], coordinates[1], coordinates[2], coordinates[3]
+	if y1 == y2 && y1 == row {
+		if ref, err = coordinatesToRangeRef([]int{x1, row2, x2, row2}, abs); err != nil {
+			return "", err
+		}
+		return ref, err
+	}
+	return "", err
+}
+
 // duplicateConditionalFormat create conditional formatting for the destination
 // row if there are conditional formats in the copied row.
 func (f *File) duplicateConditionalFormat(ws *xlsxWorksheet, sheet string, row, row2 int) error {
 	var cfs []*xlsxConditionalFormatting
 	for _, cf := range ws.ConditionalFormatting {
 		if cf != nil {
-			if !strings.Contains(cf.SQRef, ":") {
-				cf.SQRef += ":" + cf.SQRef
-			}
-			abs := strings.Contains(cf.SQRef, "$")
-			coordinates, err := rangeRefToCoordinates(cf.SQRef)
+			var SQRef []string
+			for _, ref := range strings.Split(cf.SQRef, " ") {
+				coordinates, err := duplicateSQRefHelper(row, row2, ref)
 				if err != nil {
 					return err
 				}
-			x1, y1, x2, y2 := coordinates[0], coordinates[1], coordinates[2], coordinates[3]
-			if y1 == y2 && y1 == row {
-				cfCopy := deepcopy.Copy(*cf).(xlsxConditionalFormatting)
-				if cfCopy.SQRef, err = coordinatesToRangeRef([]int{x1, row2, x2, row2}, abs); err != nil {
-					return err
+				if coordinates != "" {
+					SQRef = append(SQRef, coordinates)
 				}
+			}
+			if len(SQRef) > 0 {
+				cfCopy := deepcopy.Copy(*cf).(xlsxConditionalFormatting)
+				cfCopy.SQRef = strings.Join(SQRef, " ")
 				cfs = append(cfs, &cfCopy)
 			}
 		}
@@ -728,20 +748,19 @@ func (f *File) duplicateDataValidations(ws *xlsxWorksheet, sheet string, row, ro
 	var dvs []*xlsxDataValidation
 	for _, dv := range ws.DataValidations.DataValidation {
 		if dv != nil {
-			if !strings.Contains(dv.Sqref, ":") {
-				dv.Sqref += ":" + dv.Sqref
-			}
-			abs := strings.Contains(dv.Sqref, "$")
-			coordinates, err := rangeRefToCoordinates(dv.Sqref)
+			var SQRef []string
+			for _, ref := range strings.Split(dv.Sqref, " ") {
+				coordinates, err := duplicateSQRefHelper(row, row2, ref)
 				if err != nil {
 					return err
 				}
-			x1, y1, x2, y2 := coordinates[0], coordinates[1], coordinates[2], coordinates[3]
-			if y1 == y2 && y1 == row {
-				dvCopy := deepcopy.Copy(*dv).(xlsxDataValidation)
-				if dvCopy.Sqref, err = coordinatesToRangeRef([]int{x1, row2, x2, row2}, abs); err != nil {
-					return err
+				if coordinates != "" {
+					SQRef = append(SQRef, coordinates)
 				}
+			}
+			if len(SQRef) > 0 {
+				dvCopy := deepcopy.Copy(*dv).(xlsxDataValidation)
+				dvCopy.Sqref = strings.Join(SQRef, " ")
 				dvs = append(dvs, &dvCopy)
 			}
 		}