leaves[sym].codeLen = codeLen
		for i := start; i < start+end; i++ {
			cur.children[i] = &leaves[sym]
		}
	}
}

// AppendHuffmanString appends s, as encoded in Huffman codes, to dst
// and returns the extended buffer.
func AppendHuffmanString(dst []byte, s string) []byte {
	// This relies on the maximum huffman code length being 30 (See tables.go huffmanCodeLen array)

func appendHpackString(dst []byte, s string) []byte {
	huffmanLength := HuffmanEncodeLength(s)
	if huffmanLength < uint64(len(s)) {
		first := len(dst)
		dst = appendVarInt(dst, 7, huffmanLength)
		dst = AppendHuffmanString(dst, s)
		dst[first] |= 0x80
	} else {
		dst = appendVarInt(dst, 7, uint64(len(s)))
		dst = append(dst, s...)
	}
	return dst
}