fernandoporazzi

/*!

Source code to convert Roman numerals to Arabic numbers.
I hope it help someone!

2014-03-07

*/
  
var i = 0;

fernandoporazzi

var alphabet = [
  'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 
  'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 
  'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 
  'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
];

// get char position in array
function stringToNumber (string) {
  var number = 0;

fernandoporazzi

package main
 
import "fmt"
 
// Cria estrutura
type item struct {
    string
    w, v int
}
 

fernandoporazzi

package main

import "fmt"

func main() {
        urls := []string{"github.com",
                "twitter.com",
                "facebook.com",
                "instagram.com"}

fernandoporazzi

package main

import (
	"fmt"
	"strings"
)

func CompareTwoStrings(stringOne, stringTwo string) float32 {
	removeSpaces(&stringOne, &stringTwo)

fernandoporazzi

package block

import (
        "time"
)

type Block struct {
	Index        int
	PreviousHash string
	Data         string

fernandoporazzi

func (b *Block) GenerateHash() {

	index := strconv.Itoa(b.Index)
	nonce := strconv.Itoa(b.Nonce)

	b.Hash = fmt.Sprintf("%x", sha256.Sum256([]byte(index+b.PreviousHash+b.Data+b.Timestamp.String()+nonce)))
}

func (b *Block) Mine() {
	prefix := getPrefix(b.Difficulty)

fernandoporazzi

package blockchain

import (
	"github.com/fernandoporazzi/blockchain-golang/block"
)

type Blockchain struct {
	Blocks     []block.Block
	Index      int
	Difficulty int

fernandoporazzi

func (b *Blockchain) CreateGenesisBlock() {
	block := block.CreateBlock()

	block.Index = 0
	block.PreviousHash = "0000000000000000000000000000000000000000000000000000000000000000"
	block.Data = "Genesis Block"
	block.Difficulty = b.Difficulty

	block.Mine()

fernandoporazzi

package main

import (
	"fmt"

	"github.com/fernandoporazzi/blockchain-golang/blockchain"
)

func main() {
	blockchain := blockchain.CreateBlockchain()