This closes #417 and closes #520, new API GetCellType has been added

calc.go

@@ -158,7 +158,7 @@ type formulaCriteria struct {
  Condition string
 }
 
-// ArgType is the type if formula argument type.
+// ArgType is the type of formula argument type.
 type ArgType byte
 
 // Formula argument types enumeration.

cell.go

@@ -20,6 +20,19 @@ import (
  "time"
 )
 
+// CellType is the type of cell value type.
+type CellType byte
+
+// Cell value types enumeration.
+const (
+ CellTypeUnset CellType = iota
+ CellTypeBool
+ CellTypeDate
+ CellTypeError
+ CellTypeNumber
+ CellTypeString
+)
+
 const (
  // STCellFormulaTypeArray defined the formula is an array formula.
  STCellFormulaTypeArray = "array"
@@ -31,6 +44,17 @@ const (
  STCellFormulaTypeShared = "shared"
 )
 
+// cellTypes mapping the cell's data type and enumeration.
+var cellTypes = map[string]CellType{
+ "b": CellTypeBool,
+ "d": CellTypeDate,
+ "n": CellTypeNumber,
+ "e": CellTypeError,
+ "s": CellTypeString,
+ "str": CellTypeString,
+ "inlineStr": CellTypeString,
+}
+
 // GetCellValue provides a function to get formatted value from cell by given
 // worksheet name and axis in spreadsheet file. If it is possible to apply a
 // format to the cell value, it will do so, if not then an error will be
@@ -43,6 +67,32 @@ func (f *File) GetCellValue(sheet, axis string, opts ...Options) (string, error)
  })
 }
 
+// GetCellType provides a function to get the cell's data type by given
+// worksheet name and axis in spreadsheet file.
+func (f *File) GetCellType(sheet, axis string) (CellType, error) {
+ cellTypes := map[string]CellType{
+ "b": CellTypeBool,
+ "d": CellTypeDate,
+ "n": CellTypeNumber,
+ "e": CellTypeError,
+ "s": CellTypeString,
+ "str": CellTypeString,
+ "inlineStr": CellTypeString,
+ }
+ var (
+ err error
+ cellTypeStr string
+ cellType CellType = CellTypeUnset
+ )
+ if cellTypeStr, err = f.getCellStringFunc(sheet, axis, func(x *xlsxWorksheet, c *xlsxC) (string, bool, error) {
+ return c.T, true, nil
+ }); err != nil {
+ return CellTypeUnset, err
+ }
+ cellType = cellTypes[cellTypeStr]
+ return cellType, err
+}
+
 // SetCellValue provides a function to set the value of a cell. The specified
 // coordinates should not be in the first row of the table, a complex number
 // can be set with string text. The following shows the supported data

cell_test.go

@@ -244,6 +244,19 @@ func TestGetCellValue(t *testing.T) {
  assert.NoError(t, err)
 }
 
+func TestGetCellType(t *testing.T) {
+ f := NewFile()
+ cellType, err := f.GetCellType("Sheet1", "A1")
+ assert.NoError(t, err)
+ assert.Equal(t, CellTypeUnset, cellType)
+ assert.NoError(t, f.SetCellValue("Sheet1", "A1", "A1"))
+ cellType, err = f.GetCellType("Sheet1", "A1")
+ assert.NoError(t, err)
+ assert.Equal(t, CellTypeString, cellType)
+ _, err = f.GetCellType("Sheet1", "A")
+ assert.EqualError(t, err, `cannot convert cell "A" to coordinates: invalid cell name "A"`)
+}
+
 func TestGetCellFormula(t *testing.T) {
  // Test get cell formula on not exist worksheet.
  f := NewFile()