115 lines
2.4 KiB
Go
115 lines
2.4 KiB
Go
package xls
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import (
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"encoding/binary"
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"fmt"
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"io"
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)
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type Boundsheet struct {
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Filepos uint32
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Type byte
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Visible byte
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Name byte
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}
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type WorkSheet struct {
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bs *Boundsheet
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wb *WorkBook
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Name string
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Rows map[uint16]*Row
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MaxRow uint16
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}
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func (w *WorkSheet) Parse(buf io.ReadSeeker) {
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w.Rows = make(map[uint16]*Row)
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bof := new(BOF)
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var bof_pre *BOF
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for {
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if err := binary.Read(buf, binary.LittleEndian, bof); err == nil {
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bof_pre = w.parseBof(buf, bof, bof_pre)
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} else {
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fmt.Println(err)
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break
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}
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}
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}
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func (w *WorkSheet) parseBof(buf io.ReadSeeker, bof *BOF, pre *BOF) *BOF {
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var col Coler
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switch bof.Id {
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case 0x0E5: //MERGEDCELLS
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// ws.mergedCells(buf)
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case 0x208: //ROW
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r := new(RowInfo)
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binary.Read(buf, binary.LittleEndian, r)
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w.addRow(r)
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case 0x0BD: //MULRK
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mc := new(MulrkCol)
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size := (bof.Size - 6) / 6
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binary.Read(buf, binary.LittleEndian, &mc.Col)
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mc.Xfrks = make([]XfRk, size)
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for i := uint16(0); i < size; i++ {
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binary.Read(buf, binary.LittleEndian, &mc.Xfrks[i])
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}
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binary.Read(buf, binary.LittleEndian, &mc.LastColB)
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col = mc
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case 0x0BE: //MULBLANK
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mc := new(MulBlankCol)
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size := (bof.Size - 6) / 2
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binary.Read(buf, binary.LittleEndian, &mc.Col)
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mc.Xfs = make([]uint16, size)
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for i := uint16(0); i < size; i++ {
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binary.Read(buf, binary.LittleEndian, &mc.Xfs[i])
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}
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binary.Read(buf, binary.LittleEndian, &mc.LastColB)
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col = mc
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case 0x203: //NUMBER
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col = new(NumberCol)
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binary.Read(buf, binary.LittleEndian, col)
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case 0x06: //FORMULA
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col = new(FormulaCol)
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binary.Read(buf, binary.LittleEndian, col)
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case 0x27e: //RK
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col = new(RkCol)
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binary.Read(buf, binary.LittleEndian, col)
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case 0xFD: //LABELSST
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col = new(LabelsstCol)
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binary.Read(buf, binary.LittleEndian, col)
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case 0x201: //BLANK
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col = new(BlankCol)
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binary.Read(buf, binary.LittleEndian, col)
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default:
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buf.Seek(int64(bof.Size), 1)
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}
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if col != nil {
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w.addCell(col)
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}
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return bof
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}
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func (w *WorkSheet) addCell(col Coler) {
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var row *Row
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var ok bool
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if row, ok = w.Rows[col.Row()]; !ok {
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info := new(RowInfo)
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info.Index = col.Row()
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row = w.addRow(info)
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}
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row.Cols[col.FirstCol()] = col
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}
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func (w *WorkSheet) addRow(info *RowInfo) (row *Row) {
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if info.Index > w.MaxRow {
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w.MaxRow = info.Index
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}
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var ok bool
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if row, ok = w.Rows[info.Index]; ok {
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row.info = info
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} else {
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row = &Row{info: info, Cols: make(map[uint16]Coler)}
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w.Rows[info.Index] = row
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}
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return
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}
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