82 lines
1.4 KiB
Go
82 lines
1.4 KiB
Go
package excelLanguage
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import (
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"bytes"
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"errors"
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)
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type LanguageRow struct {
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Area *string
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Type *uint8
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LanguageList []string
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DefaultLanguage *string
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}
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func (r *LanguageRow) Unmarshal() ([]byte, error) {
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buf := new(bytes.Buffer)
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var bitmask uint8
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if r.Area != nil {
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bitmask |= 1 << 0
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}
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if r.Type != nil {
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bitmask |= 1 << 1
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}
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if len(r.LanguageList) > 0 {
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bitmask |= 1 << 2
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}
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if r.DefaultLanguage != nil {
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bitmask |= 1 << 3
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}
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if err := buf.WriteByte(bitmask); err != nil {
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return nil, err
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}
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if r.Area != nil {
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if err := writeString(buf, *r.Area); err != nil {
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return nil, err
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}
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}
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if r.Type != nil {
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if err := buf.WriteByte(*r.Type); err != nil {
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return nil, err
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}
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}
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if len(r.LanguageList) > 0 {
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if err := writeStringArray(buf, r.LanguageList); err != nil {
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return nil, err
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}
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}
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if r.DefaultLanguage != nil {
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if err := writeString(buf, *r.DefaultLanguage); err != nil {
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return nil, err
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}
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}
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return buf.Bytes(), nil
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}
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func writeString(buf *bytes.Buffer, s string) error {
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if len(s) > 255 {
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return errors.New("string too long")
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}
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if err := buf.WriteByte(uint8(len(s))); err != nil {
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return err
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}
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_, err := buf.Write([]byte(s))
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return err
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}
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func writeStringArray(buf *bytes.Buffer, arr []string) error {
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if err := writeI8Varint(buf, int8(len(arr))); err != nil {
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return err
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}
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for _, s := range arr {
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if err := writeString(buf, s); err != nil {
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return err
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}
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}
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return nil
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}
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