264 lines
8.5 KiB
Go
264 lines
8.5 KiB
Go
package excelize
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import (
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"archive/zip"
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"bytes"
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"encoding/xml"
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"strconv"
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"strings"
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)
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// File define a populated xlsx.File struct.
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type File struct {
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XLSX map[string]string
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Path string
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SheetCount int
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}
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// OpenFile take the name of an XLSX file and returns a populated
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// xlsx.File struct for it.
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func OpenFile(filename string) (*File, error) {
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var f *zip.ReadCloser
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var err error
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file := make(map[string]string)
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sheetCount := 0
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f, err = zip.OpenReader(filename)
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if err != nil {
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return &File{}, err
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}
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file, sheetCount, _ = ReadZip(f)
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return &File{
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XLSX: file,
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Path: filename,
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SheetCount: sheetCount,
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}, nil
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}
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// SetCellValue provide function to set int or string type value of a cell
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func (f *File) SetCellValue(sheet string, axis string, value interface{}) {
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switch t := value.(type) {
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case int, int8, int16, int32, int64, float32, float64:
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f.SetCellInt(sheet, axis, value.(int))
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case string:
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f.SetCellStr(sheet, axis, t)
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case []byte:
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f.SetCellStr(sheet, axis, string(t))
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default:
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f.SetCellStr(sheet, axis, ``)
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}
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}
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// SetCellInt provide function to set int type value of a cell
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func (f *File) SetCellInt(sheet string, axis string, value int) {
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axis = strings.ToUpper(axis)
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var xlsx xlsxWorksheet
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col := string(strings.Map(letterOnlyMapF, axis))
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row, _ := strconv.Atoi(strings.Map(intOnlyMapF, axis))
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xAxis := row - 1
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yAxis := titleToNumber(col)
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name := `xl/worksheets/` + strings.ToLower(sheet) + `.xml`
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xml.Unmarshal([]byte(f.readXML(name)), &xlsx)
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rows := xAxis + 1
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cell := yAxis + 1
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xlsx = completeRow(xlsx, rows, cell)
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xlsx = completeCol(xlsx, rows, cell)
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xlsx.SheetData.Row[xAxis].C[yAxis].T = ""
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xlsx.SheetData.Row[xAxis].C[yAxis].V = strconv.Itoa(value)
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output, _ := xml.Marshal(xlsx)
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f.saveFileList(name, replaceRelationshipsID(replaceWorkSheetsRelationshipsNameSpace(string(output))))
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}
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// SetCellStr provide function to set string type value of a cell
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func (f *File) SetCellStr(sheet string, axis string, value string) {
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axis = strings.ToUpper(axis)
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var xlsx xlsxWorksheet
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col := string(strings.Map(letterOnlyMapF, axis))
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row, _ := strconv.Atoi(strings.Map(intOnlyMapF, axis))
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xAxis := row - 1
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yAxis := titleToNumber(col)
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name := `xl/worksheets/` + strings.ToLower(sheet) + `.xml`
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xml.Unmarshal([]byte(f.readXML(name)), &xlsx)
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rows := xAxis + 1
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cell := yAxis + 1
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xlsx = completeRow(xlsx, rows, cell)
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xlsx = completeCol(xlsx, rows, cell)
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xlsx.SheetData.Row[xAxis].C[yAxis].T = `str`
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xlsx.SheetData.Row[xAxis].C[yAxis].V = value
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output, _ := xml.Marshal(xlsx)
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f.saveFileList(name, replaceRelationshipsID(replaceWorkSheetsRelationshipsNameSpace(string(output))))
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}
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// Completion column element tags of XML in a sheet
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func completeCol(xlsx xlsxWorksheet, row int, cell int) xlsxWorksheet {
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if len(xlsx.SheetData.Row) < cell {
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for i := len(xlsx.SheetData.Row); i < cell; i++ {
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xlsx.SheetData.Row = append(xlsx.SheetData.Row, xlsxRow{
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R: i + 1,
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})
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}
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}
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buffer := bytes.Buffer{}
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for k, v := range xlsx.SheetData.Row {
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if len(v.C) < cell {
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start := len(v.C)
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for iii := start; iii < cell; iii++ {
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buffer.WriteString(toAlphaString(iii + 1))
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buffer.WriteString(strconv.Itoa(k + 1))
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xlsx.SheetData.Row[k].C = append(xlsx.SheetData.Row[k].C, xlsxC{
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R: buffer.String(),
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})
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buffer.Reset()
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}
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}
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}
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return xlsx
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}
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// Completion row element tags of XML in a sheet
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func completeRow(xlsx xlsxWorksheet, row int, cell int) xlsxWorksheet {
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if len(xlsx.SheetData.Row) < row {
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for i := len(xlsx.SheetData.Row); i < row; i++ {
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xlsx.SheetData.Row = append(xlsx.SheetData.Row, xlsxRow{
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R: i + 1,
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})
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}
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buffer := bytes.Buffer{}
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for ii := 0; ii < row; ii++ {
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start := len(xlsx.SheetData.Row[ii].C)
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if start == 0 {
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for iii := start; iii < cell; iii++ {
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buffer.WriteString(toAlphaString(iii + 1))
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buffer.WriteString(strconv.Itoa(ii + 1))
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xlsx.SheetData.Row[ii].C = append(xlsx.SheetData.Row[ii].C, xlsxC{
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R: buffer.String(),
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})
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buffer.Reset()
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}
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}
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}
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}
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return xlsx
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}
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// Replace xl/worksheets/sheet%d.xml XML tags to self-closing for compatible Office Excel 2007
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func replaceWorkSheetsRelationshipsNameSpace(workbookMarshal string) string {
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oldXmlns := `<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">`
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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">`
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workbookMarshal = strings.Replace(workbookMarshal, oldXmlns, newXmlns, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></sheetPr>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></dimension>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></selection>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></sheetFormatPr>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></printOptions>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></pageSetup>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></pageMargins>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></headerFooter>`, ` />`, -1)
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workbookMarshal = strings.Replace(workbookMarshal, `></drawing>`, ` />`, -1)
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return workbookMarshal
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}
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// Check XML tags and fix discontinuous case, for example:
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//
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// <row r="15" spans="1:22" x14ac:dyDescent="0.2">
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// <c r="A15" s="2" />
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// <c r="B15" s="2" />
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// <c r="F15" s="1" />
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// <c r="G15" s="1" />
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// </row>
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//
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// in this case, we should to change it to
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//
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// <row r="15" spans="1:22" x14ac:dyDescent="0.2">
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// <c r="A15" s="2" />
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// <c r="B15" s="2" />
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// <c r="C15" s="2" />
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// <c r="D15" s="2" />
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// <c r="E15" s="2" />
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// <c r="F15" s="1" />
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// <c r="G15" s="1" />
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// </row>
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//
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// Noteice: this method could be very slow for large spreadsheets (more than 3000 rows one sheet).
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func checkRow(xlsx xlsxWorksheet) xlsxWorksheet {
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buffer := bytes.Buffer{}
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for k, v := range xlsx.SheetData.Row {
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lenCol := len(v.C)
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if lenCol < 1 {
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continue
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}
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endR := string(strings.Map(letterOnlyMapF, v.C[lenCol-1].R))
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endRow, _ := strconv.Atoi(strings.Map(intOnlyMapF, v.C[lenCol-1].R))
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endCol := titleToNumber(endR) + 1
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if lenCol < endCol {
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oldRow := xlsx.SheetData.Row[k].C
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xlsx.SheetData.Row[k].C = xlsx.SheetData.Row[k].C[:0]
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tmp := []xlsxC{}
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for i := 0; i <= endCol; i++ {
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buffer.WriteString(toAlphaString(i + 1))
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buffer.WriteString(strconv.Itoa(endRow))
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tmp = append(tmp, xlsxC{
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R: buffer.String(),
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})
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buffer.Reset()
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}
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xlsx.SheetData.Row[k].C = tmp
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for _, y := range oldRow {
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colAxis := titleToNumber(string(strings.Map(letterOnlyMapF, y.R)))
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xlsx.SheetData.Row[k].C[colAxis] = y
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}
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}
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}
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return xlsx
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}
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// UpdateLinkedValue fix linked values within a spreadsheet are not updating in
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// Office Excel 2007 and 2010. This function will be remove value tag when met a
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// 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
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//
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// Notice: after open XLSX file Excel will be update linked value and generate
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// new value and will prompt save file or not.
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//
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// For example:
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//
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// <row r="19" spans="2:2">
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// <c r="B19">
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// <f>SUM(Sheet2!D2,Sheet2!D11)</f>
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// <v>100</v>
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// </c>
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// </row>
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//
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// to
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//
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// <row r="19" spans="2:2">
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// <c r="B19">
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// <f>SUM(Sheet2!D2,Sheet2!D11)</f>
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// </c>
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// </row>
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func (f *File) UpdateLinkedValue() {
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for i := 1; i <= f.SheetCount; i++ {
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var xlsx xlsxWorksheet
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name := `xl/worksheets/sheet` + strconv.Itoa(i) + `.xml`
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xml.Unmarshal([]byte(f.readXML(name)), &xlsx)
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for indexR, row := range xlsx.SheetData.Row {
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for indexC, col := range row.C {
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if col.F != nil && col.V != `` {
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xlsx.SheetData.Row[indexR].C[indexC].V = ``
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xlsx.SheetData.Row[indexR].C[indexC].T = ``
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}
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}
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}
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output, _ := xml.Marshal(xlsx)
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f.saveFileList(name, replaceRelationshipsID(replaceWorkSheetsRelationshipsNameSpace(string(output))))
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}
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}
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