biff

Documentation

Index

• Variables
• func DecodeRK(encoded uint32) float64
• func ReadBIFF8String(data []byte, pos int) (string, int, error)
• func ReadBIFF8StringBoundary(data []byte, pos int, boundaries []int) (string, int, error)
• func ReadBIFF8StringBoundaryWPS(data []byte, pos int, boundaries []int) (string, int, error)
• func ReadShortString(data []byte, pos int, unicode bool) (string, int, error)
• type Reader
  • func NewReader(data []byte) *Reader
  • func (r *Reader) Bytes(n int) ([]byte, error)
  • func (r *Reader) Err() error
  • func (r *Reader) Next() (*Record, error)
  • func (r *Reader) NextSkipContinue() (*Record, error)
  • func (r *Reader) Pos() int
  • func (r *Reader) Reset(data []byte)
  • func (r *Reader) Seek(pos int)
  • func (r *Reader) U8() (byte, error)
  • func (r *Reader) U16() (uint16, error)
  • func (r *Reader) U32() (uint32, error)
  • func (r *Reader) U64() (uint64, error)
• type Record
• type RecordType
  • func (t RecordType) String() string

Variables

var ErrTruncated = errors.New("biff: truncated record")

Functions

func DecodeRK

func DecodeRK(encoded uint32) float64

DecodeRK decodes an RK value (30-bit integer + 2 flags).

func ReadBIFF8String

func ReadBIFF8String(data []byte, pos int) (string, int, error)

ReadBIFF8String reads a BIFF8 Unicode string from data starting at pos. Returns the string and new position. Standard BIFF8 flag interpretation.

func ReadBIFF8StringBoundary

func ReadBIFF8StringBoundary(data []byte, pos int, boundaries []int) (string, int, error)

ReadBIFF8StringBoundary reads a BIFF8 Unicode string with CONTINUE boundary awareness. boundaries must be sorted in ascending order, or nil. Each CONTINUE boundary redeclares the compression flag (1 byte).

func ReadBIFF8StringBoundaryWPS

func ReadBIFF8StringBoundaryWPS(data []byte, pos int, boundaries []int) (string, int, error)

ReadBIFF8StringBoundaryWPS reads a BIFF8 Unicode string with WPS-compatible flag interpretation. Same boundary awareness as ReadBIFF8StringBoundary.

func ReadShortString

func ReadShortString(data []byte, pos int, unicode bool) (string, int, error)

ReadShortString reads a 1-byte length-prefixed string (BIFF2-7 sheets, BOUNDSHEET name).

Types

type Reader

type Reader struct {
	// contains filtered or unexported fields
}

func NewReader

func NewReader(data []byte) *Reader

func (*Reader) Bytes

func (r *Reader) Bytes(n int) ([]byte, error)

func (*Reader) Err

func (r *Reader) Err() error

func (*Reader) Next

func (r *Reader) Next() (*Record, error)

func (*Reader) NextSkipContinue

func (r *Reader) NextSkipContinue() (*Record, error)

NextSkipContinue returns next non-CONTINUE record, merging CONTINUE data.

func (*Reader) Pos

func (r *Reader) Pos() int

Pos returns current read position.

func (*Reader) Reset

func (r *Reader) Reset(data []byte)

func (*Reader) Seek

func (r *Reader) Seek(pos int)

Seek sets read position.

func (*Reader) U8

func (r *Reader) U8() (byte, error)

func (*Reader) U16

func (r *Reader) U16() (uint16, error)

func (*Reader) U32

func (r *Reader) U32() (uint32, error)

func (*Reader) U64

func (r *Reader) U64() (uint64, error)

type Record

type Record struct {
	Type RecordType
	Data []byte
}

type RecordType

type RecordType uint16

const (
	BOF        RecordType = 0x0809
	EOF        RecordType = 0x000A
	CONTINUE   RecordType = 0x003C
	DATEMODE   RecordType = 0x0022
	BOUNDSHEET RecordType = 0x0085
	SST        RecordType = 0x00FC
	LABELSST   RecordType = 0x00FD
	NUMBER     RecordType = 0x0203
	RK         RecordType = 0x027E
	MULRK      RecordType = 0x00BD
	BOOLERR    RecordType = 0x0205
	FORMULA    RecordType = 0x0006
	STRING     RecordType = 0x0207
	DIMENSION  RecordType = 0x0200
	ROW        RecordType = 0x0208
	XF         RecordType = 0x00E0
	FONT       RecordType = 0x0031
	FORMAT     RecordType = 0x041E
	LABEL      RecordType = 0x0204
	LABELRKY   RecordType = 0x00D6
	INDEX      RecordType = 0x020B
	DBCELL     RecordType = 0x00D7
	MERGECELLS RecordType = 0x00E5
)

func (RecordType) String

func (t RecordType) String() string