| 'use strict'; |
| |
| var has = Object.prototype.hasOwnProperty; |
| |
| var hexTable = (function () { |
| var array = []; |
| for (var i = 0; i < 256; ++i) { |
| array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase()); |
| } |
| |
| return array; |
| }()); |
| |
| exports.arrayToObject = function (source, options) { |
| var obj = options && options.plainObjects ? Object.create(null) : {}; |
| for (var i = 0; i < source.length; ++i) { |
| if (typeof source[i] !== 'undefined') { |
| obj[i] = source[i]; |
| } |
| } |
| |
| return obj; |
| }; |
| |
| exports.merge = function (target, source, options) { |
| if (!source) { |
| return target; |
| } |
| |
| if (typeof source !== 'object') { |
| if (Array.isArray(target)) { |
| target.push(source); |
| } else if (typeof target === 'object') { |
| if (options.plainObjects || options.allowPrototypes || !has.call(Object.prototype, source)) { |
| target[source] = true; |
| } |
| } else { |
| return [target, source]; |
| } |
| |
| return target; |
| } |
| |
| if (typeof target !== 'object') { |
| return [target].concat(source); |
| } |
| |
| var mergeTarget = target; |
| if (Array.isArray(target) && !Array.isArray(source)) { |
| mergeTarget = exports.arrayToObject(target, options); |
| } |
| |
| if (Array.isArray(target) && Array.isArray(source)) { |
| source.forEach(function (item, i) { |
| if (has.call(target, i)) { |
| if (target[i] && typeof target[i] === 'object') { |
| target[i] = exports.merge(target[i], item, options); |
| } else { |
| target.push(item); |
| } |
| } else { |
| target[i] = item; |
| } |
| }); |
| return target; |
| } |
| |
| return Object.keys(source).reduce(function (acc, key) { |
| var value = source[key]; |
| |
| if (has.call(acc, key)) { |
| acc[key] = exports.merge(acc[key], value, options); |
| } else { |
| acc[key] = value; |
| } |
| return acc; |
| }, mergeTarget); |
| }; |
| |
| exports.assign = function assignSingleSource(target, source) { |
| return Object.keys(source).reduce(function (acc, key) { |
| acc[key] = source[key]; |
| return acc; |
| }, target); |
| }; |
| |
| exports.decode = function (str) { |
| try { |
| return decodeURIComponent(str.replace(/\+/g, ' ')); |
| } catch (e) { |
| return str; |
| } |
| }; |
| |
| exports.encode = function (str) { |
| // This code was originally written by Brian White (mscdex) for the io.js core querystring library. |
| // It has been adapted here for stricter adherence to RFC 3986 |
| if (str.length === 0) { |
| return str; |
| } |
| |
| var string = typeof str === 'string' ? str : String(str); |
| |
| var out = ''; |
| for (var i = 0; i < string.length; ++i) { |
| var c = string.charCodeAt(i); |
| |
| if ( |
| c === 0x2D // - |
| || c === 0x2E // . |
| || c === 0x5F // _ |
| || c === 0x7E // ~ |
| || (c >= 0x30 && c <= 0x39) // 0-9 |
| || (c >= 0x41 && c <= 0x5A) // a-z |
| || (c >= 0x61 && c <= 0x7A) // A-Z |
| ) { |
| out += string.charAt(i); |
| continue; |
| } |
| |
| if (c < 0x80) { |
| out = out + hexTable[c]; |
| continue; |
| } |
| |
| if (c < 0x800) { |
| out = out + (hexTable[0xC0 | (c >> 6)] + hexTable[0x80 | (c & 0x3F)]); |
| continue; |
| } |
| |
| if (c < 0xD800 || c >= 0xE000) { |
| out = out + (hexTable[0xE0 | (c >> 12)] + hexTable[0x80 | ((c >> 6) & 0x3F)] + hexTable[0x80 | (c & 0x3F)]); |
| continue; |
| } |
| |
| i += 1; |
| c = 0x10000 + (((c & 0x3FF) << 10) | (string.charCodeAt(i) & 0x3FF)); |
| out += hexTable[0xF0 | (c >> 18)] |
| + hexTable[0x80 | ((c >> 12) & 0x3F)] |
| + hexTable[0x80 | ((c >> 6) & 0x3F)] |
| + hexTable[0x80 | (c & 0x3F)]; |
| } |
| |
| return out; |
| }; |
| |
| exports.compact = function (obj, references) { |
| if (typeof obj !== 'object' || obj === null) { |
| return obj; |
| } |
| |
| var refs = references || []; |
| var lookup = refs.indexOf(obj); |
| if (lookup !== -1) { |
| return refs[lookup]; |
| } |
| |
| refs.push(obj); |
| |
| if (Array.isArray(obj)) { |
| var compacted = []; |
| |
| for (var i = 0; i < obj.length; ++i) { |
| if (obj[i] && typeof obj[i] === 'object') { |
| compacted.push(exports.compact(obj[i], refs)); |
| } else if (typeof obj[i] !== 'undefined') { |
| compacted.push(obj[i]); |
| } |
| } |
| |
| return compacted; |
| } |
| |
| var keys = Object.keys(obj); |
| keys.forEach(function (key) { |
| obj[key] = exports.compact(obj[key], refs); |
| }); |
| |
| return obj; |
| }; |
| |
| exports.isRegExp = function (obj) { |
| return Object.prototype.toString.call(obj) === '[object RegExp]'; |
| }; |
| |
| exports.isBuffer = function (obj) { |
| if (obj === null || typeof obj === 'undefined') { |
| return false; |
| } |
| |
| return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj)); |
| }; |