github.com/signintech/pdft@v0.5.0/minigopdf/buff_write.go (about) 1 package gopdf 2 3 import "io" 4 5 // WriteUInt32 writes a 32-bit unsigned integer value to w io.Writer 6 func WriteUInt32(w io.Writer, v uint) error { 7 a := byte(v >> 24) 8 b := byte(v >> 16) 9 c := byte(v >> 8) 10 d := byte(v) 11 _, err := w.Write([]byte{a, b, c, d}) 12 if err != nil { 13 return err 14 } 15 return nil 16 } 17 18 // WriteUInt16 writes a 16-bit unsigned integer value to w io.Writer 19 func WriteUInt16(w io.Writer, v uint) error { 20 21 a := byte(v >> 8) 22 b := byte(v) 23 _, err := w.Write([]byte{a, b}) 24 if err != nil { 25 return err 26 } 27 return nil 28 } 29 30 // WriteTag writes string value to w io.Writer 31 func WriteTag(w io.Writer, tag string) error { 32 b := []byte(tag) 33 _, err := w.Write(b) 34 if err != nil { 35 return err 36 } 37 return nil 38 } 39 40 // WriteBytes writes []byte value to w io.Writer 41 func WriteBytes(w io.Writer, data []byte, offset int, count int) error { 42 43 _, err := w.Write(data[offset : offset+count]) 44 if err != nil { 45 return err 46 } 47 return nil 48 }