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package excelize
import (
"encoding/xml"
"fmt"
"strconv"
"strings"
)
// Create a new sheet by given index, when creating a new XLSX file,
// the default sheet will be create, when you create a new file, you
// need to ensure that the index is continuous.
func NewSheet(file []FileList, index int, name string) []FileList {
// Update docProps/app.xml
file = setAppXml(file)
// Update [Content_Types].xml
file = setContentTypes(file, index)
// Create new sheet /xl/worksheets/sheet%d.xml
file = setSheet(file, index)
// Update xl/_rels/workbook.xml.rels
file = addXlsxWorkbookRels(file, index)
// Update xl/workbook.xml
file = setWorkbook(file, index, name)
return file
}
// Read and update property of contents type of XLSX
func setContentTypes(file []FileList, index int) []FileList {
var content xlsxTypes
xml.Unmarshal([]byte(readXml(file, `[Content_Types].xml`)), &content)
content.Overrides = append(content.Overrides, xlsxOverride{
PartName: fmt.Sprintf("/xl/worksheets/sheet%d.xml", index),
ContentType: "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml",
})
output, err := xml.MarshalIndent(content, "", "")
if err != nil {
fmt.Println(err)
}
return saveFileList(file, `[Content_Types].xml`, string(output))
}
// Update sheet property by given index
func setSheet(file []FileList, index int) []FileList {
var xlsx xlsxWorksheet
xlsx.Dimension.Ref = "A1"
xlsx.SheetViews.SheetView = append(xlsx.SheetViews.SheetView, xlsxSheetView{
WorkbookViewId: 0,
})
output, err := xml.MarshalIndent(xlsx, "", "")
if err != nil {
fmt.Println(err)
}
path := fmt.Sprintf("xl/worksheets/sheet%d.xml", index)
return saveFileList(file, path, replaceRelationshipsID(replaceWorkSheetsRelationshipsNameSpace(string(output))))
}
// Update workbook property of XLSX
func setWorkbook(file []FileList, index int, name string) []FileList {
var content xlsxWorkbook
xml.Unmarshal([]byte(readXml(file, `xl/workbook.xml`)), &content)
rels := readXlsxWorkbookRels(file)
rId := len(rels.Relationships)
content.Sheets.Sheet = append(content.Sheets.Sheet, xlsxSheet{
Name: name,
SheetId: strconv.Itoa(index),
Id: "rId" + strconv.Itoa(rId),
})
output, err := xml.MarshalIndent(content, "", "")
if err != nil {
fmt.Println(err)
}
return saveFileList(file, `xl/workbook.xml`, replaceRelationshipsNameSpace(string(output)))
}
// Read and unmarshal workbook relationships of XLSX
func readXlsxWorkbookRels(file []FileList) xlsxWorkbookRels {
var content xlsxWorkbookRels
xml.Unmarshal([]byte(readXml(file, `xl/_rels/workbook.xml.rels`)), &content)
return content
}
// Update workbook relationships property of XLSX
func addXlsxWorkbookRels(file []FileList, sheet int) []FileList {
content := readXlsxWorkbookRels(file)
rId := len(content.Relationships) + 1
content.Relationships = append(content.Relationships, xlsxWorkbookRelation{
Id: "rId" + strconv.Itoa(rId),
Target: fmt.Sprintf("worksheets/sheet%d.xml", sheet),
Type: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet",
})
output, err := xml.MarshalIndent(content, "", "")
if err != nil {
fmt.Println(err)
}
return saveFileList(file, `xl/_rels/workbook.xml.rels`, string(output))
}
// Update docProps/app.xml file of XML
func setAppXml(file []FileList) []FileList {
return saveFileList(file, `docProps/app.xml`, TEMPLATE_DOCPROPS_APP)
}
// Some tools that read XLSX files have very strict requirements about
// the structure of the input XML. In particular both Numbers on the Mac
// and SAS dislike inline XML namespace declarations, or namespace
// prefixes that don't match the ones that Excel itself uses. This is a
// problem because the Go XML library doesn't multiple namespace
// declarations in a single element of a document. This function is a
// horrible hack to fix that after the XML marshalling is completed.
func replaceRelationshipsNameSpace(workbookMarshal string) string {
// newWorkbook := strings.Replace(workbookMarshal, `xmlns:relationships="http://schemas.openxmlformats.org/officeDocument/2006/relationships" relationships:id`, `r:id`, -1)
// Dirty hack to fix issues #63 and #91; encoding/xml currently
// "doesn't allow for additional namespaces to be defined in the
// root element of the document," as described by @tealeg in the
// comments for #63.
oldXmlns := `<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">`
newXmlns := `<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">`
return strings.Replace(workbookMarshal, oldXmlns, newXmlns, -1)
}
// replace relationships ID in worksheets/sheet%d.xml
func replaceRelationshipsID(workbookMarshal string) string {
rids := strings.Replace(workbookMarshal, `<drawing rid="" />`, ``, -1)
return strings.Replace(rids, `<drawing rid="`, `<drawing r:id="`, -1)
}
// Set default active sheet of XLSX by given index
func SetActiveSheet(file []FileList, index int) []FileList {
var content xlsxWorkbook
if index < 1 {
index = 1
}
index -= 1
xml.Unmarshal([]byte(readXml(file, `xl/workbook.xml`)), &content)
if len(content.BookViews.WorkBookView) > 0 {
content.BookViews.WorkBookView[0].ActiveTab = index
} else {
content.BookViews.WorkBookView = append(content.BookViews.WorkBookView, xlsxWorkBookView{
ActiveTab: index,
})
}
sheets := len(content.Sheets.Sheet)
output, err := xml.MarshalIndent(content, "", "")
if err != nil {
fmt.Println(err)
}
file = saveFileList(file, `xl/workbook.xml`, workBookCompatibility(replaceRelationshipsNameSpace(string(output))))
index += 1
for i := 0; i < sheets; i++ {
xlsx := xlsxWorksheet{}
sheetIndex := i + 1
path := fmt.Sprintf("xl/worksheets/sheet%d.xml", sheetIndex)
xml.Unmarshal([]byte(readXml(file, path)), &xlsx)
if index == sheetIndex {
if len(xlsx.SheetViews.SheetView) > 0 {
xlsx.SheetViews.SheetView[0].TabSelected = true
} else {
xlsx.SheetViews.SheetView = append(xlsx.SheetViews.SheetView, xlsxSheetView{
TabSelected: true,
})
}
} else {
if len(xlsx.SheetViews.SheetView) > 0 {
xlsx.SheetViews.SheetView[0].TabSelected = false
}
}
sheet, err := xml.MarshalIndent(xlsx, "", "")
if err != nil {
fmt.Println(err)
}
file = saveFileList(file, path, replaceRelationshipsID(replaceWorkSheetsRelationshipsNameSpace(string(sheet))))
}
return file
}
// Replace xl/workbook.xml XML tags to self-closing for compatible Office Excel 2007
func workBookCompatibility(workbookMarshal string) string {
workbookMarshal = strings.Replace(workbookMarshal, `xmlns:relationships="http://schemas.openxmlformats.org/officeDocument/2006/relationships" relationships:id="`, `r:id="`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></sheet>`, ` />`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></workbookView>`, ` />`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></fileVersion>`, ` />`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></workbookPr>`, ` />`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></definedNames>`, ` />`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></calcPr>`, ` />`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></workbookProtection>`, ` />`, -1)
workbookMarshal = strings.Replace(workbookMarshal, `></fileRecoveryPr>`, ` />`, -1)
return workbookMarshal
}
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