Support get current row/col and total rows/cols in the stream reader (#1054)

col.go

@@ -32,12 +32,22 @@ const (
 
 // Cols defines an iterator to a sheet
 type Cols struct {
-	err                                  error
-	curCol, totalCol, stashCol, totalRow int
-	rawCellValue                         bool
-	sheet                                string
-	f                                    *File
-	sheetXML                             []byte
+	err                                    error
+	curCol, totalCols, totalRows, stashCol int
+	rawCellValue                           bool
+	sheet                                  string
+	f                                      *File
+	sheetXML                               []byte
+}
+
+// CurrentCol returns the column number that represents the current column.
+func (cols *Cols) CurrentCol() int {
+	return cols.curCol
+}
+
+// TotalCols returns the total columns count in the worksheet.
+func (cols *Cols) TotalCols() int {
+	return cols.totalCols
 }
 
 // GetCols return all the columns in a sheet by given worksheet name (case
@@ -71,7 +81,7 @@ func (f *File) GetCols(sheet string, opts ...Options) ([][]string, error) {
 // Next will return true if the next column is found.
 func (cols *Cols) Next() bool {
 	cols.curCol++
-	return cols.curCol <= cols.totalCol
+	return cols.curCol <= cols.totalCols
 }
 
 // Error will return an error when the error occurs.
@@ -159,7 +169,7 @@ func columnXMLHandler(colIterator *columnXMLIterator, xmlElement *xml.StartEleme
 				colIterator.row = colIterator.curRow
 			}
 		}
-		colIterator.cols.totalRow = colIterator.row
+		colIterator.cols.totalRows = colIterator.row
 		colIterator.cellCol = 0
 	}
 	if inElement == "c" {
@@ -171,8 +181,8 @@ func columnXMLHandler(colIterator *columnXMLIterator, xmlElement *xml.StartEleme
 				}
 			}
 		}
-		if colIterator.cellCol > colIterator.cols.totalCol {
-			colIterator.cols.totalCol = colIterator.cellCol
+		if colIterator.cellCol > colIterator.cols.totalCols {
+			colIterator.cols.totalCols = colIterator.cellCol
 		}
 	}
 }

col_test.go

@@ -59,39 +59,37 @@ func TestCols(t *testing.T) {
 }
 
 func TestColumnsIterator(t *testing.T) {
-	const (
-		sheet2         = "Sheet2"
-		expectedNumCol = 9
-	)
-
+	sheetName, colCount, expectedNumCol := "Sheet2", 0, 9
 	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
 	require.NoError(t, err)
 
-	cols, err := f.Cols(sheet2)
+	cols, err := f.Cols(sheetName)
 	require.NoError(t, err)
 
-	var colCount int
 	for cols.Next() {
 		colCount++
+		assert.Equal(t, colCount, cols.CurrentCol())
+		assert.Equal(t, expectedNumCol, cols.TotalCols())
 		require.True(t, colCount <= expectedNumCol, "colCount is greater than expected")
 	}
 	assert.Equal(t, expectedNumCol, colCount)
 	assert.NoError(t, f.Close())
 
-	f = NewFile()
+	f, sheetName, colCount, expectedNumCol = NewFile(), "Sheet1", 0, 4
 	cells := []string{"C2", "C3", "C4", "D2", "D3", "D4"}
 	for _, cell := range cells {
-		assert.NoError(t, f.SetCellValue("Sheet1", cell, 1))
+		assert.NoError(t, f.SetCellValue(sheetName, cell, 1))
 	}
-	cols, err = f.Cols("Sheet1")
+	cols, err = f.Cols(sheetName)
 	require.NoError(t, err)
 
-	colCount = 0
 	for cols.Next() {
 		colCount++
+		assert.Equal(t, colCount, cols.CurrentCol())
+		assert.Equal(t, expectedNumCol, cols.TotalCols())
 		require.True(t, colCount <= 4, "colCount is greater than expected")
 	}
-	assert.Equal(t, 4, colCount)
+	assert.Equal(t, expectedNumCol, colCount)
 }
 
 func TestColsError(t *testing.T) {
@@ -130,8 +128,8 @@ func TestGetColsError(t *testing.T) {
 	f = NewFile()
 	cols, err := f.Cols("Sheet1")
 	assert.NoError(t, err)
-	cols.totalRow = 2
-	cols.totalCol = 2
+	cols.totalRows = 2
+	cols.totalCols = 2
 	cols.curCol = 1
 	cols.sheetXML = []byte(`<worksheet><sheetData><row r="1"><c r="A" t="str"><v>A</v></c></row></sheetData></worksheet>`)
 	_, err = cols.Rows()

rows.go

@@ -67,19 +67,29 @@ func (f *File) GetRows(sheet string, opts ...Options) ([][]string, error) {
 
 // Rows defines an iterator to a sheet.
 type Rows struct {
-	err                        error
-	curRow, totalRow, stashRow int
-	rawCellValue               bool
-	sheet                      string
-	f                          *File
-	tempFile                   *os.File
-	decoder                    *xml.Decoder
+	err                         error
+	curRow, totalRows, stashRow int
+	rawCellValue                bool
+	sheet                       string
+	f                           *File
+	tempFile                    *os.File
+	decoder                     *xml.Decoder
+}
+
+// CurrentRow returns the row number that represents the current row.
+func (rows *Rows) CurrentRow() int {
+	return rows.curRow
+}
+
+// TotalRows returns the total rows count in the worksheet.
+func (rows *Rows) TotalRows() int {
+	return rows.totalRows
 }
 
 // Next will return true if find the next row element.
 func (rows *Rows) Next() bool {
 	rows.curRow++
-	return rows.curRow <= rows.totalRow
+	return rows.curRow <= rows.totalRows
 }
 
 // Error will return the error when the error occurs.
@@ -255,7 +265,7 @@ func (f *File) Rows(sheet string) (*Rows, error) {
 						}
 					}
 				}
-				rows.totalRow = row
+				rows.totalRows = row
 			}
 		case xml.EndElement:
 			if xmlElement.Name.Local == "sheetData" {

rows_test.go

@@ -65,18 +65,17 @@ func TestRows(t *testing.T) {
 }
 
 func TestRowsIterator(t *testing.T) {
-	const (
-		sheet2         = "Sheet2"
-		expectedNumRow = 11
-	)
+	sheetName, rowCount, expectedNumRow := "Sheet2", 0, 11
 	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
 	require.NoError(t, err)
 
-	rows, err := f.Rows(sheet2)
+	rows, err := f.Rows(sheetName)
 	require.NoError(t, err)
-	var rowCount int
+
 	for rows.Next() {
 		rowCount++
+		assert.Equal(t, rowCount, rows.CurrentRow())
+		assert.Equal(t, expectedNumRow, rows.TotalRows())
 		require.True(t, rowCount <= expectedNumRow, "rowCount is greater than expected")
 	}
 	assert.Equal(t, expectedNumRow, rowCount)
@@ -84,19 +83,18 @@ func TestRowsIterator(t *testing.T) {
 	assert.NoError(t, f.Close())
 
 	// Valued cell sparse distribution test
-	f = NewFile()
+	f, sheetName, rowCount, expectedNumRow = NewFile(), "Sheet1", 0, 3
 	cells := []string{"C1", "E1", "A3", "B3", "C3", "D3", "E3"}
 	for _, cell := range cells {
-		assert.NoError(t, f.SetCellValue("Sheet1", cell, 1))
+		assert.NoError(t, f.SetCellValue(sheetName, cell, 1))
 	}
-	rows, err = f.Rows("Sheet1")
+	rows, err = f.Rows(sheetName)
 	require.NoError(t, err)
-	rowCount = 0
 	for rows.Next() {
 		rowCount++
-		require.True(t, rowCount <= 3, "rowCount is greater than expected")
+		require.True(t, rowCount <= expectedNumRow, "rowCount is greater than expected")
 	}
-	assert.Equal(t, 3, rowCount)
+	assert.Equal(t, expectedNumRow, rowCount)
 }
 
 func TestRowsError(t *testing.T) {