decode-binary-string.go

package main

import (
	"encoding/binary"
	"log"
	"strconv"
)

func main() {
	msg := "01011100000010101000000010011010000000100110100000001001101000000010011000101111100000001001100010111000101111001011111000000010011010000000100110100000001001100010111000101110001000001000000010011001011100010111001000000010011000101110010111000000101010000000100110100000001001101000000010011000101110001011100010111110000000100110001011100010111100101111100000001001101000000010011010000000100110100000001001100010000010000000100110001011100101110001011100100000001001100010111001011100000010101000000010011000101110001011100010111110110100101011110010111110000000100110001011100010111110110100101011110101110010000000100110100000001001101000000010011000101110001011100010111110101111001000000110000001011100100000001001100010111001011100101011110110000001011100000010100010111000101110001011110010111000101111100000001001100010111110000000100110001011100010111110000000100110001011100010111100101110011111000101111110000000100110100000001001100101111101111100001000000010111001011100100000001001100010111001011100100000001001100010111001011100100000001001100101110000101110010111000010111000101110000010100010100000101110001010001000000010011000101110001010001000000010011000101110001010001000000010011000101110001011110010111000101001001011100010111000101001001011100010111000101000001011100010111000101000001011100010000001011100100000001001100010111000101001100000001001100010111000101001100000001001100010111000101001001011100010100100001010001011100101110010000000100110100000001001101000000010011010000000100110100000001001100010111001011100001011111000000010011000101111100000001001100010111001011100001011100010000000101110001011100101110000101111100000001001101000000010011010000000100110100000001001101000000010011000101110001011110000101000101110001011100101110010000000100110100000001001101000000010011010000000100110100000001001100010111000101110001000000010111110000000100110100000001001100010111000101110010111001000000010011010000000100110100000001001101000000010011010000000100110001011100010111010000000100110001011110000101010000000100110001011100101110010000000100110100000001001101000000010011010000000100110001011100010111000101000100000001001101000000010011010000000100110001011100010000000101110001011100010100110000000100110100000001001101000000010011010000000100110100000001001100010111000101110000"
	for i := 0; i < 4; i++ {
		check(msg, i)
	}
}

func check(msg string, offset int) {
	for i := 0; i < offset; i++ {
		msg = "0" + msg
	}
	bytes := []byte{}
	for len(msg) > 0 {
		l := len(msg)
		if l > 64 {
			l = 64
		}
		m := msg[:l]
		i, _ := strconv.ParseUint(m, 2, 64)
		b := make([]byte, 8)
		binary.BigEndian.PutUint64(b, i)
		bytes = append(bytes, b...)
		msg = msg[l:]
	}
	log.Printf("=========\n\n\n\n%d\n\n\n", offset)
	log.Print(string(bytes))
}