87 lines
1.9 KiB
Go
87 lines
1.9 KiB
Go
|
package xls
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/binary"
|
||
|
|
"io"
|
||
|
|
)
|
||
|
|
|
||
|
|
func ReadBytes(r io.Reader, size int) ([]byte, error) {
|
||
|
|
buf := make([]byte, size)
|
||
|
|
if _, err := r.Read(buf); err != nil {
|
||
|
|
return buf, err
|
||
|
|
}
|
||
|
|
return buf, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func MustReadBytes(r io.Reader, size int) []byte {
|
||
|
|
buf, _ := ReadBytes(r, size)
|
||
|
|
return buf
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadByte(r io.Reader) (byte, error) {
|
||
|
|
buf, err := ReadBytes(r, 1)
|
||
|
|
if err != nil {
|
||
|
|
return 0, err
|
||
|
|
}
|
||
|
|
return buf[0], nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadUint16(r io.Reader) (uint16, error) {
|
||
|
|
buf, err := ReadBytes(r, 2)
|
||
|
|
if err != nil {
|
||
|
|
return 0, err
|
||
|
|
}
|
||
|
|
return binary.LittleEndian.Uint16(buf), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadUint32(r io.Reader) (uint32, error) {
|
||
|
|
buf, err := ReadBytes(r, 4)
|
||
|
|
if err != nil {
|
||
|
|
return 0, err
|
||
|
|
}
|
||
|
|
return binary.LittleEndian.Uint32(buf), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadBoundSheet(r io.Reader) *boundsheet {
|
||
|
|
var bs = new(boundsheet)
|
||
|
|
buf, _ := ReadBytes(r, 7)
|
||
|
|
bs.Filepos = binary.LittleEndian.Uint32(buf[0:4])
|
||
|
|
bs.Visible = buf[4]
|
||
|
|
bs.Type = buf[5]
|
||
|
|
bs.Name = buf[6]
|
||
|
|
return bs
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadRowInfo(r io.Reader) *rowInfo {
|
||
|
|
row := new(rowInfo)
|
||
|
|
buf, _ := ReadBytes(r, 16)
|
||
|
|
row.Index = binary.LittleEndian.Uint16(buf[0:2])
|
||
|
|
row.Fcell = binary.LittleEndian.Uint16(buf[2:4])
|
||
|
|
row.Lcell = binary.LittleEndian.Uint16(buf[4:6])
|
||
|
|
row.Height = binary.LittleEndian.Uint16(buf[6:8])
|
||
|
|
row.Notused = binary.LittleEndian.Uint16(buf[8:10])
|
||
|
|
row.Notused2 = binary.LittleEndian.Uint16(buf[10:12])
|
||
|
|
row.Flags = binary.LittleEndian.Uint32(buf[12:16])
|
||
|
|
return row
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadLabelsstCol(r io.Reader) *LabelsstCol {
|
||
|
|
col := new(LabelsstCol)
|
||
|
|
buf, _ := ReadBytes(r, 10)
|
||
|
|
col.RowB = binary.LittleEndian.Uint16(buf[0:2])
|
||
|
|
col.FirstColB = binary.LittleEndian.Uint16(buf[2:4])
|
||
|
|
col.Xf = binary.LittleEndian.Uint16(buf[4:6])
|
||
|
|
col.Sst = binary.LittleEndian.Uint32(buf[6:10])
|
||
|
|
return col
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadBof(r io.Reader, row *bof) error {
|
||
|
|
buf, err := ReadBytes(r, 4)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
row.Id = binary.LittleEndian.Uint16(buf[0:2])
|
||
|
|
row.Size = binary.LittleEndian.Uint16(buf[2:4])
|
||
|
|
return err
|
||
|
|
}
|