| // Load modules |
| |
| |
| // Declare internals |
| |
| var internals = {}; |
| internals.hexTable = new Array(256); |
| for (var h = 0; h < 256; ++h) { |
| internals.hexTable[h] = '%' + ((h < 16 ? '0' : '') + h.toString(16)).toUpperCase(); |
| } |
| |
| |
| exports.arrayToObject = function (source, options) { |
| |
| var obj = options.plainObjects ? Object.create(null) : {}; |
| for (var i = 0, il = source.length; i < il; ++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') { |
| target[source] = true; |
| } |
| else { |
| target = [target, source]; |
| } |
| |
| return target; |
| } |
| |
| if (typeof target !== 'object') { |
| target = [target].concat(source); |
| return target; |
| } |
| |
| if (Array.isArray(target) && |
| !Array.isArray(source)) { |
| |
| target = exports.arrayToObject(target, options); |
| } |
| |
| var keys = Object.keys(source); |
| for (var k = 0, kl = keys.length; k < kl; ++k) { |
| var key = keys[k]; |
| var value = source[key]; |
| |
| if (!Object.prototype.hasOwnProperty.call(target, key)) { |
| target[key] = value; |
| } |
| else { |
| target[key] = exports.merge(target[key], value, options); |
| } |
| } |
| |
| return 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; |
| } |
| |
| if (typeof str !== 'string') { |
| str = '' + str; |
| } |
| |
| var out = ''; |
| for (var i = 0, il = str.length; i < il; ++i) { |
| var c = str.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 += str[i]; |
| continue; |
| } |
| |
| if (c < 0x80) { |
| out += internals.hexTable[c]; |
| continue; |
| } |
| |
| if (c < 0x800) { |
| out += internals.hexTable[0xC0 | (c >> 6)] + internals.hexTable[0x80 | (c & 0x3F)]; |
| continue; |
| } |
| |
| if (c < 0xD800 || c >= 0xE000) { |
| out += internals.hexTable[0xE0 | (c >> 12)] + internals.hexTable[0x80 | ((c >> 6) & 0x3F)] + internals.hexTable[0x80 | (c & 0x3F)]; |
| continue; |
| } |
| |
| ++i; |
| c = 0x10000 + (((c & 0x3FF) << 10) | (str.charCodeAt(i) & 0x3FF)); |
| out += internals.hexTable[0xF0 | (c >> 18)] + internals.hexTable[0x80 | ((c >> 12) & 0x3F)] + internals.hexTable[0x80 | ((c >> 6) & 0x3F)] + internals.hexTable[0x80 | (c & 0x3F)]; |
| } |
| |
| return out; |
| }; |
| |
| exports.compact = function (obj, refs) { |
| |
| if (typeof obj !== 'object' || |
| obj === null) { |
| |
| return obj; |
| } |
| |
| refs = refs || []; |
| var lookup = refs.indexOf(obj); |
| if (lookup !== -1) { |
| return refs[lookup]; |
| } |
| |
| refs.push(obj); |
| |
| if (Array.isArray(obj)) { |
| var compacted = []; |
| |
| for (var i = 0, il = obj.length; i < il; ++i) { |
| if (typeof obj[i] !== 'undefined') { |
| compacted.push(obj[i]); |
| } |
| } |
| |
| return compacted; |
| } |
| |
| var keys = Object.keys(obj); |
| for (i = 0, il = keys.length; i < il; ++i) { |
| var key = keys[i]; |
| 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)); |
| }; |