golang, convert UTF-16 to UTF-8 string

gistfile1.go

package main

// http://play.golang.org/p/fVf7duRtdH

import "fmt"
import "unicode/utf16"
import "encoding/binary"

func main() {

	b := []byte{
		0xff, // BOM
		0xfe, // BOM
		'T',
		0x00,
		'E',
		0x00,
		'S',
		0x00,
		'T',
		0x00,
		0x6C,
		0x34,
		'\n',
		0x00,
	}

	s, err := DecodeUTF16(b, binary.LittleEndian)
	if err != nil {
		panic(err)
	}
	fmt.Println(s)
}

// Assume byte slice is the correct length
func DecodeUTF16(b []byte, order binary.ByteOrder) (string, error) {
	u16s := []uint16{}

	for i, j := 0, len(b); i < j; i += 2 {
		u16s = append(u16s, order.Uint16(b[i:]))
	}

	runes := utf16.Decode(u16s)
	return string(runes), nil
}