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// 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));
};
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