var (
// sfnt2Woff offset
SFNT_OFFSET_TAG = 0
SFNT_OFFSET_CHECKSUM = 4
SFNT_OFFSET_OFFSET = 8
SFNT_OFFSET_LENGTH = 12
// sfnt2Woff entry offset
SFNT_ENTRY_OFFSET_FLAVOR = 0
SFNT_ENTRY_OFFSET_VERSION_MAJ = 4
SFNT_ENTRY_OFFSET_VERSION_MIN = 6
SFNT_ENTRY_OFFSET_CHECKSUM_ADJUSTMENT = 8
// woff offset
WOFF_OFFSET_MAGIC = 0
WOFF_OFFSET_FLAVOR = 4
WOFF_OFFSET_SIZE = 8
WOFF_OFFSET_NUM_TABLES = 12
WOFF_OFFSET_RESERVED = 14
WOFF_OFFSET_SFNT_SIZE = 16
WOFF_OFFSET_VERSION_MAJ = 20
WOFF_OFFSET_VERSION_MIN = 22
WOFF_OFFSET_META_OFFSET = 24
WOFF_OFFSET_META_LENGTH = 28
WOFF_OFFSET_META_ORIG_LENGTH = 32
WOFF_OFFSET_PRIV_OFFSET = 36
WOFF_OFFSET_PRIV_LENGTH = 40
// woff entry offset
WOFF_ENTRY_OFFSET_TAG = 0
WOFF_ENTRY_OFFSET_OFFSET = 4
WOFF_ENTRY_OFFSET_COMPR_LENGTH = 8
WOFF_ENTRY_OFFSET_LENGTH = 12
WOFF_ENTRY_OFFSET_CHECKSUM = 16
// magic
MAGIC_WOFF uint32 = 0x774f4646
MAGIC_CHECKSUM_ADJUSTMENT uint32 = 0xb1b0afba
// sizes
SIZE_OF_WOFF_HEADER = 44
SIZE_OF_WOFF_ENTRY = 20
SIZE_OF_SFNT_HEADER = 12
SIZE_OF_SFNT_TABLE_ENTRY = 16
)
func Sfnt2Woff(fontBuf []byte) ([]byte, error)
func UTF8CutFont(inBuf []byte, cutset string) (outBuf []byte)
UTF8CutFont is a utility function that generates a TrueType font composed only of the runes included in cutset. The rune glyphs are copied from This function is demonstrated in ExampleUTF8CutFont().
type TableEntry struct {
Tag []byte
CheckSum uint32
Offset uint32
Length uint32
}