/
xls.go
70 lines (64 loc) · 1.26 KB
/
xls.go
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package xls
import (
"fmt"
"io"
"os"
"github.com/kardianos/xls/ole2"
)
// OpenReader opens an XLS file from r with charset.
// Charset may be "utf-8".
// If r is a closer, r.Close will be called when WorkBook.Close is called.
func OpenReader(r io.ReadSeeker, charset string) (*WorkBook, error) {
ole, err := ole2.Open(r, charset)
if err != nil {
return nil, err
}
dir, err := ole.ListDir()
if err != nil {
return nil, err
}
var book, root *ole2.File
for _, f := range dir {
switch f.Name() {
case "Workbook":
book = f
case "Book":
book = f
case "Root Entry":
root = f
}
}
if book == nil {
return nil, fmt.Errorf("No OLE2 Excel Workbook found")
}
c, isc := r.(io.Closer)
of := ole.OpenFile(book, root)
wb, err := newWorkBookFromOle2(of)
if err != nil {
c.Close()
return nil, err
}
if isc {
wb.closer = c
}
return wb, nil
}
// Open a XLS file from disk with the given charset.
func Open(name, charset string) (*WorkBook, error) {
f, err := os.Open(name)
if err != nil {
return nil, err
}
wb, err := OpenReader(f, charset)
if err != nil {
return nil, err
}
return wb, nil
}
// Close WorkBook if it was opened with a Closer.
func (w *WorkBook) Close() error {
if w.closer != nil {
return w.closer.Close()
}
return nil
}