EVOLUTION-MANAGER

Edit File: helpers.js

'use strict';

var sprintf = require('sprintf-js').sprintf;

/**
 * @returns {String} the string with all zeroes contained in a 
 */
var spanAllZeroes = exports.spanAllZeroes = function (s) {
 return s.replace(/(0+)/g, '$1');
};

/**
 * @returns {String} the string with each character contained in a 
 */
exports.spanAll = function (s, optionalOffset) {
 if (optionalOffset === undefined) {
 optionalOffset = 0;
 }

var letters = s.split('');

return letters.map(function (n, i) {
 return sprintf('%s', n,
 i + optionalOffset,
 spanAllZeroes(n)); // XXX Use #base-2 .value-0 instead?
 }).join('');
};

function spanLeadingZeroesSimple(group) {
 return group.replace(/^(0+)/, '$1');
}

/**
 * @returns {String} the string with leading zeroes contained in a 
 */
exports.spanLeadingZeroes = function (address) {
 var groups = address.split(':');

return groups.map(function (g) {
    return spanLeadingZeroesSimple(g);
  }).join(':');
};

/**
 * Groups an address
 * @returns {String} a grouped address
 */
exports.simpleGroup = function (addressString, offset) {
  var groups = addressString.split(':');

if (!offset) {
    offset = 0;
  }

return groups.map(function (g, i) {
    if (/group-v4/.test(g)) {
      return g;
    }

return sprintf('%s',
 i + offset,
 spanLeadingZeroesSimple(g));
 }).join(':');
};