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Optional padding argument for fromUtf8 and fromAscii functions #375

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Optional padding argument for fromUtf8 and fromAscii functions #375

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18 changes: 16 additions & 2 deletions lib/utils/utils.js
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Expand Up @@ -144,7 +144,10 @@ var toAscii = function(hex) {
* @param {Number} optional padding
* @returns {String} hex representation of input string
*/
var fromUtf8 = function(str) {
var fromUtf8 = function(str, pad) {

pad = pad === undefined ? 0 : pad;

str = utf8.encode(str);
var hex = "";
for(var i = 0; i < str.length; i++) {
Expand All @@ -155,6 +158,10 @@ var fromUtf8 = function(str) {
hex += n.length < 2 ? '0' + n : n;
}

while (hex.length < pad*2){
hex += "00";
}

return "0x" + hex;
};

Expand All @@ -166,14 +173,21 @@ var fromUtf8 = function(str) {
* @param {Number} optional padding
* @returns {String} hex representation of input string
*/
var fromAscii = function(str) {
var fromAscii = function(str, pad) {

pad = pad === undefined ? 0 : pad;

var hex = "";
for(var i = 0; i < str.length; i++) {
var code = str.charCodeAt(i);
var n = code.toString(16);
hex += n.length < 2 ? '0' + n : n;
}

while (hex.length < pad*2){
hex += "00";
}

return "0x" + hex;
};

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