95 lines
6.3 KiB
JavaScript
95 lines
6.3 KiB
JavaScript
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(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.AnyBase = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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'use strict';
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/**
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* Converter
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*
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* @param {string} srcAlphabet
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* @param {string} dstAlphabet
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* @constructor
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*/
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function Converter(srcAlphabet, dstAlphabet) {
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if (!srcAlphabet || !dstAlphabet || !srcAlphabet.length || !dstAlphabet.length) {
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throw new Error('Bad alphabet');
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}
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this.srcAlphabet = srcAlphabet;
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this.dstAlphabet = dstAlphabet;
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}
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/**
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* Convert number from source alphabet to destonation alphabet
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*
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* @param {string} number - number represent as a string
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*
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* @returns {string}
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*/
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Converter.prototype.convert = function(number) {
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var i, divide, newlen,
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numberMap = {},
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fromBase = this.srcAlphabet.length,
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toBase = this.dstAlphabet.length,
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length = number.length,
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result = '';
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if (this.srcAlphabet === this.dstAlphabet) {
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return number;
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}
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for (i = 0; i < length; i++) {
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numberMap[i] = this.srcAlphabet.indexOf(number[i]);
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}
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do {
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divide = 0;
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newlen = 0;
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for (i = 0; i < length; i++) {
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divide = divide * fromBase + numberMap[i];
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if (divide >= toBase) {
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numberMap[newlen++] = parseInt(divide / toBase, 10);
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divide = divide % toBase;
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} else if (newlen > 0) {
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numberMap[newlen++] = 0;
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}
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}
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length = newlen;
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result = this.dstAlphabet[divide] + result;
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} while (newlen != 0);
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return result;
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}
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module.exports = Converter;
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},{}],2:[function(require,module,exports){
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var Converter = require('./src/converter');
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/**
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* Function get source and destination alphabet and return convert function
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*
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* @param {string} srcAlphabet
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* @param {string} dstAlphabet
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*
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* @returns {function(number)}
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*/
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function anyBase(srcAlphabet, dstAlphabet) {
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var converter = new Converter(srcAlphabet, dstAlphabet);
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/**
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* Convert function
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*
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* @param {string} number
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*
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* @return {string} number
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*/
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return function (number) {
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return converter.convert(number);
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}
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};
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anyBase.BIN = '01';
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anyBase.OCT = '01234567';
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anyBase.DEC = '0123456789';
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anyBase.HEX = '0123456789abcdef';
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module.exports = anyBase;
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},{"./src/converter":1}]},{},[2])(2)
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});
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