qortal-ui/qortal-ui-crypto/api/deps/Base58.js

// Generated by CoffeeScript 1.8.0

// == Changed for ES6 modules == //
//(function() {
//var ALPHABET, ALPHABET_MAP, Base58, i;

//const Base58 = (typeof module !== "undefined" && module !== null ? module.exports : void 0) || (window.Base58 = {});
const Base58 = {};

const ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";

const ALPHABET_MAP = {};

let i = 0;

while (i < ALPHABET.length) {
ALPHABET_MAP[ALPHABET.charAt(i)] = i;
i++;
}

Base58.encode = function(buffer) {
buffer = new Uint8Array(buffer);
var carry, digits, j;
if (buffer.length === 0) {
    return "";
}
i = void 0;
j = void 0;
digits = [0];
i = 0;
while (i < buffer.length) {
    j = 0;
    while (j < digits.length) {
    digits[j] <<= 8;
    j++;
    }
    digits[0] += buffer[i];
    carry = 0;
    j = 0;
    while (j < digits.length) {
    digits[j] += carry;
    carry = (digits[j] / 58) | 0;
    digits[j] %= 58;
    ++j;
    }
    while (carry) {
    digits.push(carry % 58);
    carry = (carry / 58) | 0;
    }
    i++;
}
i = 0;
while (buffer[i] === 0 && i < buffer.length - 1) {
    digits.push(0);
    i++;
}
return digits.reverse().map(function(digit) {
    return ALPHABET[digit];
}).join("");
};

Base58.decode = function(string) {
var bytes, c, carry, j;
if (string.length === 0) {
    return new (typeof Uint8Array !== "undefined" && Uint8Array !== null ? Uint8Array : Buffer)(0);
}
i = void 0;
j = void 0;
bytes = [0];
i = 0;
while (i < string.length) {
    c = string[i];
    if (!(c in ALPHABET_MAP)) {
    throw "Base58.decode received unacceptable input. Character '" + c + "' is not in the Base58 alphabet.";
    }
    j = 0;
    while (j < bytes.length) {
    bytes[j] *= 58;
    j++;
    }
    bytes[0] += ALPHABET_MAP[c];
    carry = 0;
    j = 0;
    while (j < bytes.length) {
    bytes[j] += carry;
    carry = bytes[j] >> 8;
    bytes[j] &= 0xff;
    ++j;
    }
    while (carry) {
    bytes.push(carry & 0xff);
    carry >>= 8;
    }
    i++;
}
i = 0;
while (string[i] === "1" && i < string.length - 1) {
    bytes.push(0);
    i++;
}
return new (typeof Uint8Array !== "undefined" && Uint8Array !== null ? Uint8Array : Buffer)(bytes.reverse());
};


// == Changed for ES6 modules == //
//}).call(this);

export default Base58;