Golang Slice Helper Functions

byteslicer.go

package byteslicer

func Copy(a []byte) []byte {
	b := make([]byte, len(a))
	copy(b, a)
	return b
}

func Cut(a []byte, i, j int) []byte {
	copy(a[i:], a[j:])
	for k, n := len(a)-j+i, len(a); k < n; k++ {
		a[k] = 0x00
	}
	a = a[:len(a)-j+i]
	return a
}

func Delete(a []byte, i int) []byte {
	copy(a[i:], a[i+1:])
	a[len(a)-1] = 0x00
	a = a[:len(a)-1]
	return a
}

func Insert(a []byte, b byte, i int) []byte {
	a = append(a, 0)
	copy(a[i+1:], a[i:])
	a[i] = b
	return a
}

func InsertVector(a []byte, b []byte, i int) []byte {
	a = append(a[:i], append(b, a[i:]...)...)
	return a
}

func PushR(a []byte, b byte) []byte {
	a = append(a, b)
	return a
}

func PushL(a []byte, b byte) {
	a = append([]byte{b}, a...)
}

func PopR(a []byte) byte {
	b, a := a[len(a)-1], a[:len(a)-1]
	return b
}

func PopL(a []byte) byte {
	b, a := a[0], a[1:]
	return b
}