Format commants, break comments after 80 characters.

cell.go

@@ -6,8 +6,8 @@ import (
 	"strings"
 )
 
-// GetCellValue provide function get value from cell by given sheet index and axis in XLSX file.
-// The value of the merged cell is not available currently.
+// GetCellValue provide function get value from cell by given sheet index and
+// axis in XLSX file. The value of the merged cell is not available currently.
 func (f *File) GetCellValue(sheet string, axis string) string {
 	axis = strings.ToUpper(axis)
 	var xlsx xlsxWorksheet
@@ -50,7 +50,8 @@ func (f *File) GetCellValue(sheet string, axis string) string {
 	return ""
 }
 
-// GetCellFormula provide function get formula from cell by given sheet index and axis in XLSX file.
+// GetCellFormula provide function get formula from cell by given sheet index
+// and axis in XLSX file.
 func (f *File) GetCellFormula(sheet string, axis string) string {
 	axis = strings.ToUpper(axis)
 	var xlsx xlsxWorksheet

col.go

@@ -5,8 +5,8 @@ import (
 	"strings"
 )
 
-// SetColWidth provides function to set the width of a single column or multiple columns.
-// For example:
+// SetColWidth provides function to set the width of a single column or multiple
+// columns. For example:
 //
 //    xlsx := excelize.CreateFile()
 //    xlsx.SetColWidth("Sheet1", "A", "H", 20)

excelize.go

@@ -8,15 +8,15 @@ import (
 	"strings"
 )
 
-// File define a populated xlsx.File struct.
+// File define a populated XLSX file struct.
 type File struct {
 	XLSX       map[string]string
 	Path       string
 	SheetCount int
 }
 
-// OpenFile take the name of an XLSX file and returns a populated
-// xlsx.File struct for it.
+// OpenFile take the name of an XLSX file and returns a populated XLSX file
+// struct for it.
 func OpenFile(filename string) (*File, error) {
 	var f *zip.ReadCloser
 	var err error
@@ -110,7 +110,8 @@ func (f *File) SetCellStr(sheet string, axis string, value string) {
 	f.saveFileList(name, replaceWorkSheetsRelationshipsNameSpace(string(output)))
 }
 
-// SetCellDefault provides function to set string type value of a cell as default format without escaping the cell.
+// SetCellDefault provides function to set string type value of a cell as
+// default format without escaping the cell.
 func (f *File) SetCellDefault(sheet string, axis string, value string) {
 	axis = strings.ToUpper(axis)
 	var xlsx xlsxWorksheet
@@ -203,15 +204,16 @@ func completeRow(xlsx xlsxWorksheet, row int, cell int) xlsxWorksheet {
 	return xlsx
 }
 
-// Replace xl/worksheets/sheet%d.xml XML tags to self-closing for compatible Office Excel 2007.
+// Replace xl/worksheets/sheet%d.xml XML tags to self-closing for compatible
+// Office Excel 2007.
 func replaceWorkSheetsRelationshipsNameSpace(workbookMarshal string) string {
 	oldXmlns := `<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">`
 	newXmlns := `<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:mx="http://schemas.microsoft.com/office/mac/excel/2008/main" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:mv="urn:schemas-microsoft-com:mac:vml" xmlns:x14="http://schemas.microsoft.com/office/spreadsheetml/2009/9/main" xmlns:x14ac="http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac" xmlns:xm="http://schemas.microsoft.com/office/excel/2006/main">`
 	workbookMarshal = strings.Replace(workbookMarshal, oldXmlns, newXmlns, -1)
 	return workbookMarshal
 }
 
-// Check XML tags and fix discontinuous case, for example:
+// Check XML tags and fix discontinuous case. For example:
 //
 //    <row r="15" spans="1:22" x14ac:dyDescent="0.2">
 //        <c r="A15" s="2" />
@@ -232,7 +234,8 @@ func replaceWorkSheetsRelationshipsNameSpace(workbookMarshal string) string {
 //        <c r="G15" s="1" />
 //    </row>
 //
-// Noteice: this method could be very slow for large spreadsheets (more than 3000 rows one sheet).
+// Noteice: this method could be very slow for large spreadsheets (more than
+// 3000 rows one sheet).
 func checkRow(xlsx xlsxWorksheet) xlsxWorksheet {
 	buffer := bytes.Buffer{}
 	for k, v := range xlsx.SheetData.Row {
@@ -267,7 +270,8 @@ func checkRow(xlsx xlsxWorksheet) xlsxWorksheet {
 
 // UpdateLinkedValue fix linked values within a spreadsheet are not updating in
 // Office Excel 2007 and 2010. This function will be remove value tag when met a
-// cell have a linked value. Reference https://social.technet.microsoft.com/Forums/office/en-US/e16bae1f-6a2c-4325-8013-e989a3479066/excel-2010-linked-cells-not-updating?forum=excel
+// cell have a linked value. Reference
+// https://social.technet.microsoft.com/Forums/office/en-US/e16bae1f-6a2c-4325-8013-e989a3479066/excel-2010-linked-cells-not-updating?forum=excel
 //
 // Notice: after open XLSX file Excel will be update linked value and generate
 // new value and will prompt save file or not.

excelize_test.go

@@ -112,10 +112,12 @@ func TestOpenFile(t *testing.T) {
 	if err != nil {
 		t.Log(err)
 	}
+}
 
+func TestBrokenFile(t *testing.T) {
 	// Test write file with broken file struct.
 	f2 := File{}
-	err = f2.Save()
+	err := f2.Save()
 	if err != nil {
 		t.Log(err)
 	}
@@ -124,41 +126,39 @@ func TestOpenFile(t *testing.T) {
 	if err != nil {
 		t.Log(err)
 	}
-}
 
-func TestCreateFile(t *testing.T) {
-	// Test create a XLSX file.
-	f3 := CreateFile()
-	f3.NewSheet(2, "XLSXSheet2")
-	f3.NewSheet(3, "XLSXSheet3")
-	f3.SetCellInt("Sheet2", "A23", 56)
-	f3.SetCellStr("SHEET1", "B20", "42")
-	f3.SetActiveSheet(0)
-	// Test add picture to sheet.
-	err := f3.AddPicture("Sheet1", "H2", "K12", "./test/images/excel.gif")
+	// Test set active sheet without BookViews and Sheets maps in xl/workbook.xml.
+	f3, err := OpenFile("./test/badWorkbook.xlsx")
+	f3.SetActiveSheet(2)
 	if err != nil {
 		t.Log(err)
 	}
-	err = f3.AddPicture("Sheet1", "C2", "F12", "./test/images/excel.tif")
+
+	// Test open a XLSX file with given illegal path.
+	_, err = OpenFile("./test/Workbook.xlsx")
 	if err != nil {
 		t.Log(err)
 	}
-	err = f3.WriteTo("./test/Workbook_3.xlsx")
+}
+
+func TestCreateFile(t *testing.T) {
+	// Test create a XLSX file.
+	f4 := CreateFile()
+	f4.NewSheet(2, "XLSXSheet2")
+	f4.NewSheet(3, "XLSXSheet3")
+	f4.SetCellInt("Sheet2", "A23", 56)
+	f4.SetCellStr("SHEET1", "B20", "42")
+	f4.SetActiveSheet(0)
+	// Test add picture to sheet.
+	err := f4.AddPicture("Sheet1", "H2", "K12", "./test/images/excel.gif")
 	if err != nil {
 		t.Log(err)
 	}
-}
-
-func TestBrokenFile(t *testing.T) {
-	// Test set active sheet without BookViews and Sheets maps in xl/workbook.xml.
-	f4, err := OpenFile("./test/badWorkbook.xlsx")
-	f4.SetActiveSheet(2)
+	err = f4.AddPicture("Sheet1", "C2", "F12", "./test/images/excel.tif")
 	if err != nil {
 		t.Log(err)
 	}
-
-	// Test open a XLSX file with given illegal path.
-	_, err = OpenFile("./test/Workbook.xlsx")
+	err = f4.WriteTo("./test/Workbook_3.xlsx")
 	if err != nil {
 		t.Log(err)
 	}

file.go

@@ -6,9 +6,11 @@ import (
 	"os"
 )
 
-// CreateFile provide function to create new file by default template.
-// For example:
-// xlsx := CreateFile()
+// CreateFile provides function to create new file by default template. For
+// example:
+//
+//    xlsx := CreateFile()
+//
 func CreateFile() *File {
 	file := make(map[string]string)
 	file["_rels/.rels"] = templateRels
@@ -25,7 +27,7 @@ func CreateFile() *File {
 	}
 }
 
-// Save provide function override the xlsx file with origin path.
+// Save provides function override the xlsx file with origin path.
 func (f *File) Save() error {
 	buf := new(bytes.Buffer)
 	w := zip.NewWriter(buf)
@@ -51,7 +53,8 @@ func (f *File) Save() error {
 	return err
 }
 
-// WriteTo provide function create or update to an xlsx file at the provided path.
+// WriteTo provides function to create or update to an xlsx file at the provided
+// path.
 func (f *File) WriteTo(name string) error {
 	buf := new(bytes.Buffer)
 	w := zip.NewWriter(buf)

lib.go

@@ -9,16 +9,16 @@ import (
 	"math"
 )
 
-// ReadZip takes a pointer to a zip.ReadCloser and returns a
-// xlsx.File struct populated with its contents. In most cases
-// ReadZip is not used directly, but is called internally by OpenFile.
+// ReadZip takes a pointer to a zip.ReadCloser and returns a xlsx.File struct
+// populated with its contents. In most cases ReadZip is not used directly, but
+// is called internally by OpenFile.
 func ReadZip(f *zip.ReadCloser) (map[string]string, int, error) {
 	defer f.Close()
 	return ReadZipReader(&f.Reader)
 }
 
-// ReadZipReader can be used to read an XLSX in memory without
-// touching the filesystem.
+// ReadZipReader can be used to read an XLSX in memory without touching the
+// filesystem.
 func ReadZipReader(r *zip.Reader) (map[string]string, int, error) {
 	fileList := make(map[string]string)
 	worksheets := 0
@@ -88,8 +88,8 @@ func titleToNumber(s string) int {
 	return sum - 1
 }
 
-// letterOnlyMapF is used in conjunction with strings.Map to return
-// only the characters A-Z and a-z in a string.
+// letterOnlyMapF is used in conjunction with strings.Map to return only the
+// characters A-Z and a-z in a string.
 func letterOnlyMapF(rune rune) rune {
 	switch {
 	case 'A' <= rune && rune <= 'Z':
@@ -100,8 +100,8 @@ func letterOnlyMapF(rune rune) rune {
 	return -1
 }
 
-// intOnlyMapF is used in conjunction with strings.Map to return only
-// the numeric portions of a string.
+// intOnlyMapF is used in conjunction with strings.Map to return only the
+// numeric portions of a string.
 func intOnlyMapF(rune rune) rune {
 	if rune >= 48 && rune < 58 {
 		return rune

picture.go

@@ -13,8 +13,8 @@ import (
 	"strings"
 )
 
-// AddPicture provide the method to add picture in a sheet by given xAxis, yAxis and file path.
-// For example:
+// AddPicture provide the method to add picture in a sheet by given xAxis, yAxis
+// and file path. For example:
 //
 //    xlsx := excelize.CreateFile()
 //    err := xlsx.AddPicture("Sheet1", "A2", "H9", "./image.jpg")
@@ -63,8 +63,9 @@ func (f *File) AddPicture(sheet string, xAxis string, yAxis string, picture stri
 	return err
 }
 
-// addSheetRelationships provides function to add xl/worksheets/_rels/sheet%d.xml.rels by given
-// sheet name, relationship type and target.
+// addSheetRelationships provides function to add
+// xl/worksheets/_rels/sheet%d.xml.rels by given sheet name, relationship type
+// and target.
 func (f *File) addSheetRelationships(sheet string, relType string, target string) int {
 	var rels = "xl/worksheets/_rels/" + strings.ToLower(sheet) + ".xml.rels"
 	var sheetRels xlsxWorkbookRels
@@ -93,8 +94,8 @@ func (f *File) addSheetRelationships(sheet string, relType string, target string
 	return rID
 }
 
-// addSheetDrawing provides function to add drawing element to xl/worksheets/sheet%d.xml by
-// given sheet name and relationship index.
+// addSheetDrawing provides function to add drawing element to
+// xl/worksheets/sheet%d.xml by given sheet name and relationship index.
 func (f *File) addSheetDrawing(sheet string, rID int) {
 	var xlsx xlsxWorksheet
 	name := "xl/worksheets/" + strings.ToLower(sheet) + ".xml"
@@ -109,7 +110,8 @@ func (f *File) addSheetDrawing(sheet string, rID int) {
 	f.saveFileList(name, string(output))
 }
 
-// countDrawings provides function to get drawing files count storage in the folder xl/drawings.
+// countDrawings provides function to get drawing files count storage in the
+// folder xl/drawings.
 func (f *File) countDrawings() int {
 	count := 0
 	for k := range f.XLSX {
@@ -120,10 +122,10 @@ func (f *File) countDrawings() int {
 	return count
 }
 
-// addDrawing provides function to add picture by given drawingXML, xAxis, yAxis, file name
-// and relationship index. In order to solve the problem that the label structure is changed
-// after serialization and deserialization, two different structures: decodeWsDr and encodeWsDr
-// are defined.
+// addDrawing provides function to add picture by given drawingXML, xAxis,
+// yAxis, file name and relationship index. In order to solve the problem that
+// the label structure is changed after serialization and deserialization, two
+// different structures: decodeWsDr and encodeWsDr are defined.
 func (f *File) addDrawing(drawingXML string, xAxis string, yAxis string, file string, rID int) {
 	xAxis = strings.ToUpper(xAxis)
 	fromCol := string(strings.Map(letterOnlyMapF, xAxis))
@@ -186,8 +188,9 @@ func (f *File) addDrawing(drawingXML string, xAxis string, yAxis string, file st
 	f.saveFileList(drawingXML, result)
 }
 
-// addDrawingRelationships provides function to add image part relationships in the file
-// xl/drawings/_rels/drawing%d.xml.rels by given drawing index, relationship type and target.
+// addDrawingRelationships provides function to add image part relationships in
+// the file xl/drawings/_rels/drawing%d.xml.rels by given drawing index,
+// relationship type and target.
 func (f *File) addDrawingRelationships(index int, relType string, target string) int {
 	var rels = "xl/drawings/_rels/drawing" + strconv.Itoa(index) + ".xml.rels"
 	var drawingRels xlsxWorkbookRels
@@ -216,7 +219,8 @@ func (f *File) addDrawingRelationships(index int, relType string, target string)
 	return rID
 }
 
-// countMedia provides function to get media files count storage in the folder xl/media/image.
+// countMedia provides function to get media files count storage in the folder
+// xl/media/image.
 func (f *File) countMedia() int {
 	count := 0
 	for k := range f.XLSX {
@@ -227,17 +231,18 @@ func (f *File) countMedia() int {
 	return count
 }
 
-// addMedia provides function to add picture into folder xl/media/image by given file
-// name and extension name.
+// addMedia provides function to add picture into folder xl/media/image by given
+// file name and extension name.
 func (f *File) addMedia(file string, ext string) {
 	count := f.countMedia()
 	dat, _ := ioutil.ReadFile(file)
 	media := "xl/media/image" + strconv.Itoa(count+1) + ext
 	f.XLSX[media] = string(dat)
 }
 
-// addDrawingContentTypePart provides function to add image part relationships in
-// http://purl.oclc.org/ooxml/officeDocument/relationships/image and appropriate content type.
+// addDrawingContentTypePart provides function to add image part relationships
+// in http://purl.oclc.org/ooxml/officeDocument/relationships/image and
+// appropriate content type.
 func (f *File) addDrawingContentTypePart(index int) {
 	var imageTypes = map[string]bool{"jpeg": false, "png": false, "gif": false, "tiff": false}
 	var content xlsxTypes
@@ -271,8 +276,9 @@ func (f *File) addDrawingContentTypePart(index int) {
 	f.saveFileList(`[Content_Types].xml`, string(output))
 }
 
-// getSheetRelationshipsTargetByID provides function to get Target attribute value
-// in xl/worksheets/_rels/sheet%d.xml.rels by given sheet name and relationship index.
+// getSheetRelationshipsTargetByID provides function to get Target attribute
+// value in xl/worksheets/_rels/sheet%d.xml.rels by given sheet name and
+// relationship index.
 func (f *File) getSheetRelationshipsTargetByID(sheet string, rID string) string {
 	var rels = "xl/worksheets/_rels/" + strings.ToLower(sheet) + ".xml.rels"
 	var sheetRels xlsxWorkbookRels

rows.go

@@ -43,9 +43,8 @@ func readXMLSST(f *File) (xlsxSST, error) {
 	return shardStrings, err
 }
 
-// getValueFrom return a value from a column/row cell,
-// this function is inteded to be used with for range on rows
-// an argument with the xlsx opened file.
+// getValueFrom return a value from a column/row cell, this function is inteded
+// to be used with for range on rows an argument with the xlsx opened file.
 func (xlsx *xlsxC) getValueFrom(f *File) (string, error) {
 	switch xlsx.T {
 	case "s":