epubjs/dist/epub.js

Parse and Render Epubs

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory((function webpackLoadOptionalExternalModule() { try { return require("JSZip"); } catch(e) {} }()), require("xmldom"));
	else if(typeof define === 'function' && define.amd)
		define(["JSZip", "xmldom"], factory);
	else if(typeof exports === 'object')
		exports["ePub"] = factory((function webpackLoadOptionalExternalModule() { try { return require("JSZip"); } catch(e) {} }()), require("xmldom"));
	else
		root["ePub"] = factory(root["JSZip"], root["xmldom"]);
})(this, function(__WEBPACK_EXTERNAL_MODULE_48__, __WEBPACK_EXTERNAL_MODULE_14__) {
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/* 0 */
/***/ function(module, exports, __webpack_require__) {

"use strict";
"use strict";

Object.defineProperty(exports, "__esModule", {
	value: true
});
exports.isElement = isElement;
exports.uuid = uuid;
exports.documentHeight = documentHeight;
exports.isNumber = isNumber;
exports.isFloat = isFloat;
exports.prefixed = prefixed;
exports.defaults = defaults;
exports.extend = extend;
exports.insert = insert;
exports.locationOf = locationOf;
exports.indexOfSorted = indexOfSorted;
exports.bounds = bounds;
exports.borders = borders;
exports.windowBounds = windowBounds;
exports.cleanStringForXpath = cleanStringForXpath;
exports.indexOfTextNode = indexOfTextNode;
exports.isXml = isXml;
exports.createBlob = createBlob;
exports.createBlobUrl = createBlobUrl;
exports.createBase64Url = createBase64Url;
exports.type = type;
exports.parse = parse;
exports.qs = qs;
exports.qsa = qsa;
exports.qsp = qsp;
exports.sprint = sprint;
exports.treeWalker = treeWalker;
exports.walk = walk;
exports.blob2base64 = blob2base64;
exports.defer = defer;
exports.querySelectorByType = querySelectorByType;
exports.findChildren = findChildren;
var requestAnimationFrame = exports.requestAnimationFrame = typeof window != "undefined" ? window.requestAnimationFrame || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || window.msRequestAnimationFrame : false;

function isElement(obj) {
	return !!(obj && obj.nodeType == 1);
}

// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
function uuid() {
	var d = new Date().getTime();
	var uuid = "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
		var r = (d + Math.random() * 16) % 16 | 0;
		d = Math.floor(d / 16);
		return (c == "x" ? r : r & 0x7 | 0x8).toString(16);
	});
	return uuid;
}

function documentHeight() {
	return Math.max(document.documentElement.clientHeight, document.body.scrollHeight, document.documentElement.scrollHeight, document.body.offsetHeight, document.documentElement.offsetHeight);
}

function isNumber(n) {
	return !isNaN(parseFloat(n)) && isFinite(n);
}

function isFloat(n) {
	return isNumber(n) && Math.floor(n) !== n;
}

function prefixed(unprefixed) {
	var vendors = ["Webkit", "Moz", "O", "ms"];
	// var prefixes = ["-Webkit-", "-moz-", "-o-", "-ms-"];
	var upper = unprefixed[0].toUpperCase() + unprefixed.slice(1);
	var length = vendors.length;

	if (typeof document === "undefined" || typeof document.body.style[unprefixed] != "undefined") {
		return unprefixed;
	}

	for (var i = 0; i < length; i++) {
		if (typeof document.body.style[vendors[i] + upper] != "undefined") {
			return vendors[i] + upper;
		}
	}

	return unprefixed;
}

function defaults(obj) {
	for (var i = 1, length = arguments.length; i < length; i++) {
		var source = arguments[i];
		for (var prop in source) {
			if (obj[prop] === void 0) obj[prop] = source[prop];
		}
	}
	return obj;
}

function extend(target) {
	var sources = [].slice.call(arguments, 1);
	sources.forEach(function (source) {
		if (!source) return;
		Object.getOwnPropertyNames(source).forEach(function (propName) {
			Object.defineProperty(target, propName, Object.getOwnPropertyDescriptor(source, propName));
		});
	});
	return target;
}

// Fast quicksort insert for sorted array -- based on:
// http://stackoverflow.com/questions/1344500/efficient-way-to-insert-a-number-into-a-sorted-array-of-numbers
function insert(item, array, compareFunction) {
	var location = locationOf(item, array, compareFunction);
	array.splice(location, 0, item);

	return location;
}

// Returns where something would fit in
function locationOf(item, array, compareFunction, _start, _end) {
	var start = _start || 0;
	var end = _end || array.length;
	var pivot = parseInt(start + (end - start) / 2);
	var compared;
	if (!compareFunction) {
		compareFunction = function compareFunction(a, b) {
			if (a > b) return 1;
			if (a < b) return -1;
			if (a == b) return 0;
		};
	}
	if (end - start <= 0) {
		return pivot;
	}

	compared = compareFunction(array[pivot], item);
	if (end - start === 1) {
		return compared > 0 ? pivot : pivot + 1;
	}

	if (compared === 0) {
		return pivot;
	}
	if (compared === -1) {
		return locationOf(item, array, compareFunction, pivot, end);
	} else {
		return locationOf(item, array, compareFunction, start, pivot);
	}
}

// Returns -1 of mpt found
function indexOfSorted(item, array, compareFunction, _start, _end) {
	var start = _start || 0;
	var end = _end || array.length;
	var pivot = parseInt(start + (end - start) / 2);
	var compared;
	if (!compareFunction) {
		compareFunction = function compareFunction(a, b) {
			if (a > b) return 1;
			if (a < b) return -1;
			if (a == b) return 0;
		};
	}
	if (end - start <= 0) {
		return -1; // Not found
	}

	compared = compareFunction(array[pivot], item);
	if (end - start === 1) {
		return compared === 0 ? pivot : -1;
	}
	if (compared === 0) {
		return pivot; // Found
	}
	if (compared === -1) {
		return indexOfSorted(item, array, compareFunction, pivot, end);
	} else {
		return indexOfSorted(item, array, compareFunction, start, pivot);
	}
}

function bounds(el) {

	var style = window.getComputedStyle(el);
	var widthProps = ["width", "paddingRight", "paddingLeft", "marginRight", "marginLeft", "borderRightWidth", "borderLeftWidth"];
	var heightProps = ["height", "paddingTop", "paddingBottom", "marginTop", "marginBottom", "borderTopWidth", "borderBottomWidth"];

	var width = 0;
	var height = 0;

	widthProps.forEach(function (prop) {
		width += parseFloat(style[prop]) || 0;
	});

	heightProps.forEach(function (prop) {
		height += parseFloat(style[prop]) || 0;
	});

	return {
		height: height,
		width: width
	};
}

function borders(el) {

	var style = window.getComputedStyle(el);
	var widthProps = ["paddingRight", "paddingLeft", "marginRight", "marginLeft", "borderRightWidth", "borderLeftWidth"];
	var heightProps = ["paddingTop", "paddingBottom", "marginTop", "marginBottom", "borderTopWidth", "borderBottomWidth"];

	var width = 0;
	var height = 0;

	widthProps.forEach(function (prop) {
		width += parseFloat(style[prop]) || 0;
	});

	heightProps.forEach(function (prop) {
		height += parseFloat(style[prop]) || 0;
	});

	return {
		height: height,
		width: width
	};
}

function windowBounds() {

	var width = window.innerWidth;
	var height = window.innerHeight;

	return {
		top: 0,
		left: 0,
		right: width,
		bottom: height,
		width: width,
		height: height
	};
}

//-- https://stackoverflow.com/questions/13482352/xquery-looking-for-text-with-single-quote/13483496#13483496
function cleanStringForXpath(str) {
	var parts = str.match(/[^'"]+|['"]/g);
	parts = parts.map(function (part) {
		if (part === "'") {
			return "\"\'\""; // output "'"
		}

		if (part === "\"") {
			return "\'\"\'"; // output '"'
		}
		return "'" + part + "'";
	});
	return "concat(''," + parts.join(",") + ")";
}

function indexOfTextNode(textNode) {
	var parent = textNode.parentNode;
	var children = parent.childNodes;
	var sib;
	var index = -1;
	for (var i = 0; i < children.length; i++) {
		sib = children[i];
		if (sib.nodeType === Node.TEXT_NODE) {
			index++;
		}
		if (sib == textNode) break;
	}

	return index;
}

function isXml(ext) {
	return ["xml", "opf", "ncx"].indexOf(ext) > -1;
}

function createBlob(content, mime) {
	return new Blob([content], { type: mime });
}

function createBlobUrl(content, mime) {
	var _URL = window.URL || window.webkitURL || window.mozURL;
	var tempUrl;
	var blob = this.createBlob(content, mime);

	tempUrl = _URL.createObjectURL(blob);

	return tempUrl;
}

function createBase64Url(content, mime) {
	var data;
	var datauri;

	if (typeof content !== "string") {
		// Only handles strings
		return;
	}

	data = btoa(content);

	datauri = "data:" + mime + ";base64," + data;

	return datauri;
}

function type(obj) {
	return Object.prototype.toString.call(obj).slice(8, -1);
}

function parse(markup, mime, forceXMLDom) {
	var doc;
	var Parser;

	if (typeof DOMParser === "undefined" || forceXMLDom) {
		Parser = __webpack_require__(14).DOMParser;
	} else {
		Parser = DOMParser;
	}

	doc = new Parser().parseFromString(markup, mime);

	return doc;
}

function qs(el, sel) {
	var elements;
	if (!el) {
		throw new Error("No Element Provided");
	}

	if (typeof el.querySelector != "undefined") {
		return el.querySelector(sel);
	} else {
		elements = el.getElementsByTagName(sel);
		if (elements.length) {
			return elements[0];
		}
	}
}

function qsa(el, sel) {

	if (typeof el.querySelector != "undefined") {
		return el.querySelectorAll(sel);
	} else {
		return el.getElementsByTagName(sel);
	}
}

function qsp(el, sel, props) {
	var q, filtered;
	if (typeof el.querySelector != "undefined") {
		sel += "[";
		for (var prop in props) {
			sel += prop + "='" + props[prop] + "'";
		}
		sel += "]";
		return el.querySelector(sel);
	} else {
		q = el.getElementsByTagName(sel);
		filtered = Array.prototype.slice.call(q, 0).filter(function (el) {
			for (var prop in props) {
				if (el.getAttribute(prop) === props[prop]) {
					return true;
				}
			}
			return false;
		});

		if (filtered) {
			return filtered[0];
		}
	}
}

/**
 * Sprint through all text nodes in a document
 * @param  {element} root element to start with
 * @param  {function} func function to run on each element
 */
function sprint(root, func) {
	var doc = root.ownerDocument || root;
	if (typeof doc.createTreeWalker !== "undefined") {
		treeWalker(root, func, NodeFilter.SHOW_TEXT);
	} else {
		walk(root, function (node) {
			if (node && node.nodeType === 3) {
				// Node.TEXT_NODE
				func(node);
			}
		}, true);
	}
}

function treeWalker(root, func, filter) {
	var treeWalker = document.createTreeWalker(root, filter, null, false);
	var node = void 0;
	while (node = treeWalker.nextNode()) {
		func(node);
	}
}

// export function walk(root, func, onlyText) {
// 	var node = root;
//
// 	if (node && !onlyText || node.nodeType === 3) { // Node.TEXT_NODE
// 		func(node);
// 	}
// 	console.log(root);
//
// 	node = node.firstChild;
// 	while(node) {
// 		walk(node, func, onlyText);
// 		node = node.nextSibling;
// 	}
// }

/**
 * @param callback return false for continue,true for break
 * @return boolean true: break visit;
 */
function walk(node, callback) {
	if (callback(node)) {
		return true;
	}
	node = node.firstChild;
	if (node) {
		do {
			var walked = walk(node, callback);
			if (walked) {
				return true;
			}
			node = node.nextSibling;
		} while (node);
	}
}

function blob2base64(blob, cb) {
	var reader = new FileReader();
	reader.readAsDataURL(blob);
	reader.onloadend = function () {
		cb(reader.result);
	};
}

// From: https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules/Promise.jsm/Deferred#backwards_forwards_compatible
function defer() {
	var _this = this;

	/* A method to resolve the associated Promise with the value passed.
  * If the promise is already settled it does nothing.
  *
  * @param {anything} value : This value is used to resolve the promise
  * If the value is a Promise then the associated promise assumes the state
  * of Promise passed as value.
  */
	this.resolve = null;

	/* A method to reject the assocaited Promise with the value passed.
  * If the promise is already settled it does nothing.
  *
  * @param {anything} reason: The reason for the rejection of the Promise.
  * Generally its an Error object. If however a Promise is passed, then the Promise
  * itself will be the reason for rejection no matter the state of the Promise.
  */
	this.reject = null;

	this.id = uuid();

	/* A newly created Pomise object.
  * Initially in pending state.
  */
	this.promise = new Promise(function (resolve, reject) {
		_this.resolve = resolve;
		_this.reject = reject;
	});
	Object.freeze(this);
}

function querySelectorByType(html, element, type) {
	var query;
	if (typeof html.querySelector != "undefined") {
		query = html.querySelector(element + "[*|type=\"" + type + "\"]");
	}
	// Handle IE not supporting namespaced epub:type in querySelector
	if (!query || query.length === 0) {
		query = qsa(html, element);
		for (var i = 0; i < query.length; i++) {
			if (query[i].getAttributeNS("http://www.idpf.org/2007/ops", "type") === type) {
				return query[i];
			}
		}
	} else {
		return query;
	}
}

function findChildren(el) {
	var result = [];
	var childNodes = el.parentNode.childNodes;
	for (var i = 0; i < childNodes.length; i++) {
		var node = childNodes[i];
		if (node.nodeType === 1) {
			result.push(node);
		}
	}
	return result;
}

/***/ },
/* 1 */
/***/ function(module, exports, __webpack_require__) {

"use strict";
"use strict";

Object.defineProperty(exports, "__esModule", {
	value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _core = __webpack_require__(0);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
	EPUB CFI spec: http://www.idpf.org/epub/linking/cfi/epub-cfi.html

	Implements:
	- Character Offset: epubcfi(/6/4[chap01ref]!/4[body01]/10[para05]/2/1:3)
	- Simple Ranges : epubcfi(/6/4[chap01ref]!/4[body01]/10[para05],/2/1:1,/3:4)

	Does Not Implement:
	- Temporal Offset (~)
	- Spatial Offset (@)
	- Temporal-Spatial Offset (~ + @)
	- Text Location Assertion ([)
*/

var ELEMENT_NODE = 1;
var TEXT_NODE = 3;
// const COMMENT_NODE = 8;
var DOCUMENT_NODE = 9;

var EpubCFI = function () {
	function EpubCFI(cfiFrom, base, ignoreClass) {
		_classCallCheck(this, EpubCFI);

		var type;

		this.str = "";

		this.base = {};
		this.spinePos = 0; // For compatibility

		this.range = false; // true || false;

		this.path = {};
		this.start = null;
		this.end = null;

		// Allow instantiation without the "new" keyword
		if (!(this instanceof EpubCFI)) {
			return new EpubCFI(cfiFrom, base, ignoreClass);
		}

		if (typeof base === "string") {
			this.base = this.parseComponent(base);
		} else if ((typeof base === "undefined" ? "undefined" : _typeof(base)) === "object" && base.steps) {
			this.base = base;
		}

		type = this.checkType(cfiFrom);

		if (type === "string") {
			this.str = cfiFrom;
			return (0, _core.extend)(this, this.parse(cfiFrom));
		} else if (type === "range") {
			return (0, _core.extend)(this, this.fromRange(cfiFrom, this.base, ignoreClass));
		} else if (type === "node") {
			return (0, _core.extend)(this, this.fromNode(cfiFrom, this.base, ignoreClass));
		} else if (type === "EpubCFI" && cfiFrom.path) {
			return cfiFrom;
		} else if (!cfiFrom) {
			return this;
		} else {
			throw new TypeError("not a valid argument for EpubCFI");
		}
	}

	_createClass(EpubCFI, [{
		key: "checkType",
		value: function checkType(cfi) {

			if (this.isCfiString(cfi)) {
				return "string";
				// Is a range object
			} else if ((typeof cfi === "undefined" ? "undefined" : _typeof(cfi)) === "object" && ((0, _core.type)(cfi) === "Range" || typeof cfi.startContainer != "undefined")) {
				return "range";
			} else if ((typeof cfi === "undefined" ? "undefined" : _typeof(cfi)) === "object" && typeof cfi.nodeType != "undefined") {
				// || typeof cfi === "function"
				return "node";
			} else if ((typeof cfi === "undefined" ? "undefined" : _typeof(cfi)) === "object" && cfi instanceof EpubCFI) {
				return "EpubCFI";
			} else {
				return false;
			}
		}
	}, {
		key: "parse",
		value: function parse(cfiStr) {
			var cfi = {
				spinePos: -1,
				range: false,
				base: {},
				path: {},
				start: null,
				end: null
			};
			var baseComponent, pathComponent, range;

			if (typeof cfiStr !== "string") {
				return { spinePos: -1 };
			}

			if (cfiStr.indexOf("epubcfi(") === 0 && cfiStr[cfiStr.length - 1] === ")") {
				// Remove intial epubcfi( and ending )
				cfiStr = cfiStr.slice(8, cfiStr.length - 1);
			}

			baseComponent = this.getChapterComponent(cfiStr);

			// Make sure this is a valid cfi or return
			if (!baseComponent) {
				return { spinePos: -1 };
			}

			cfi.base = this.parseComponent(baseComponent);

			pathComponent = this.getPathComponent(cfiStr);
			cfi.path = this.parseComponent(pathComponent);

			range = this.getRange(cfiStr);

			if (range) {
				cfi.range = true;
				cfi.start = this.parseComponent(range[0]);
				cfi.end = this.parseComponent(range[1]);
			}

			// Get spine node position
			// cfi.spineSegment = cfi.base.steps[1];

			// Chapter segment is always the second step
			cfi.spinePos = cfi.base.steps[1].index;

			return cfi;
		}
	}, {
		key: "parseComponent",
		value: function parseComponent(componentStr) {
			var component = {
				steps: [],
				terminal: {
					offset: null,
					assertion: null
				}
			};
			var parts = componentStr.split(":");
			var steps = parts[0].split("/");
			var terminal;

			if (parts.length > 1) {
				terminal = parts[1];
				component.terminal = this.parseTerminal(terminal);
			}

			if (steps[0] === "") {
				steps.shift(); // Ignore the first slash
			}

			component.steps = steps.map(function (step) {
				return this.parseStep(step);
			}.bind(this));

			return component;
		}
	}, {
		key: "parseStep",
		value: function parseStep(stepStr) {
			var type, num, index, has_brackets, id;

			has_brackets = stepStr.match(/\[(.*)\]/);
			if (has_brackets && has_brackets[1]) {
				id = has_brackets[1];
			}

			//-- Check if step is a text node or element
			num = parseInt(stepStr);

			if (isNaN(num)) {
				return;
			}

			if (num % 2 === 0) {
				// Even = is an element
				type = "element";
				index = num / 2 - 1;
			} else {
				type = "text";
				index = (num - 1) / 2;
			}

			return {
				"type": type,
				"index": index,
				"id": id || null
			};
		}
	}, {
		key: "parseTerminal",
		value: function parseTerminal(termialStr) {
			var characterOffset, textLocationAssertion;
			var assertion = termialStr.match(/\[(.*)\]/);

			if (assertion && assertion[1]) {
				characterOffset = parseInt(termialStr.split("[")[0]) || null;
				textLocationAssertion = assertion[1];
			} else {
				characterOffset = parseInt(termialStr) || null;
			}

			return {
				"offset": characterOffset,
				"assertion": textLocationAssertion
			};
		}
	}, {
		key: "getChapterComponent",
		value: function getChapterComponent(cfiStr) {

			var indirection = cfiStr.split("!");

			return indirection[0];
		}
	}, {
		key: "getPathComponent",
		value: function getPathComponent(cfiStr) {

			var indirection = cfiStr.split("!");

			if (indirection[1]) {
				var ranges = indirection[1].split(",");
				return ranges[0];
			}
		}
	}, {
		key: "getRange",
		value: function getRange(cfiStr) {

			var ranges = cfiStr.split(",");

			if (ranges.length === 3) {
				return [ranges[1], ranges[2]];
			}

			return false;
		}
	}, {
		key: "getCharecterOffsetComponent",
		value: function getCharecterOffsetComponent(cfiStr) {
			var splitStr = cfiStr.split(":");
			return splitStr[1] || "";
		}
	}, {
		key: "joinSteps",
		value: function joinSteps(steps) {
			if (!steps) {
				return "";
			}

			return steps.map(function (part) {
				var segment = "";

				if (part.type === "element") {
					segment += (part.index + 1) * 2;
				}

				if (part.type === "text") {
					segment += 1 + 2 * part.index; // TODO: double check that this is odd
				}

				if (part.id) {
					segment += "[" + part.id + "]";
				}

				return segment;
			}).join("/");
		}
	}, {
		key: "segmentString",
		value: function segmentString(segment) {
			var segmentString = "/";

			segmentString += this.joinSteps(segment.steps);

			if (segment.terminal && segment.terminal.offset != null) {
				segmentString += ":" + segment.terminal.offset;
			}

			if (segment.terminal && segment.terminal.assertion != null) {
				segmentString += "[" + segment.terminal.assertion + "]";
			}

			return segmentString;
		}
	}, {
		key: "toString",
		value: function toString() {
			var cfiString = "epubcfi(";

			cfiString += this.segmentString(this.base);

			cfiString += "!";
			cfiString += this.segmentString(this.path);

			// Add Range, if present
			if (this.start) {
				cfiString += ",";
				cfiString += this.segmentString(this.start);
			}

			if (this.end) {
				cfiString += ",";
				cfiString += this.segmentString(this.end);
			}

			cfiString += ")";

			return cfiString;
		}
	}, {
		key: "compare",
		value: function compare(cfiOne, cfiTwo) {
			var stepsA, stepsB;
			var terminalA, terminalB;

			if (typeof cfiOne === "string") {
				cfiOne = new EpubCFI(cfiOne);
			}
			if (typeof cfiTwo === "string") {
				cfiTwo = new EpubCFI(cfiTwo);
			}
			// Compare Spine Positions
			if (cfiOne.spinePos > cfiTwo.spinePos) {
				return 1;
			}
			if (cfiOne.spinePos < cfiTwo.spinePos) {
				return -1;
			}

			if (cfiOne.range) {
				stepsA = cfiOne.path.steps.concat(cfiOne.start.steps);
				terminalA = cfiOne.start.terminal;
			} else {
				stepsA = cfiOne.path.steps;
				terminalA = cfiOne.path.terminal;
			}

			if (cfiTwo.range) {
				stepsB = cfiTwo.path.steps.concat(cfiTwo.start.steps);
				terminalB = cfiTwo.start.terminal;
			} else {
				stepsB = cfiTwo.path.steps;
				terminalB = cfiTwo.path.terminal;
			}

			// Compare Each Step in the First item
			for (var i = 0; i < stepsA.length; i++) {
				if (!stepsA[i]) {
					return -1;
				}
				if (!stepsB[i]) {
					return 1;
				}
				if (stepsA[i].index > stepsB[i].index) {
					return 1;
				}
				if (stepsA[i].index < stepsB[i].index) {
					return -1;
				}
				// Otherwise continue checking
			}

			// All steps in First equal to Second and First is Less Specific
			if (stepsA.length < stepsB.length) {
				return 1;
			}

			// Compare the charecter offset of the text node
			if (terminalA.offset > terminalB.offset) {
				return 1;
			}
			if (terminalA.offset < terminalB.offset) {
				return -1;
			}

			// CFI's are equal
			return 0;
		}
	}, {
		key: "step",
		value: function step(node) {
			var nodeType = node.nodeType === TEXT_NODE ? "text" : "element";

			return {
				"id": node.id,
				"tagName": node.tagName,
				"type": nodeType,
				"index": this.position(node)
			};
		}
	}, {
		key: "filteredStep",
		value: function filteredStep(node, ignoreClass) {
			var filteredNode = this.filter(node, ignoreClass);
			var nodeType;

			// Node filtered, so ignore
			if (!filteredNode) {
				return;
			}

			// Otherwise add the filter node in
			nodeType = filteredNode.nodeType === TEXT_NODE ? "text" : "element";

			return {
				"id": filteredNode.id,
				"tagName": filteredNode.tagName,
				"type": nodeType,
				"index": this.filteredPosition(filteredNode, ignoreClass)
			};
		}
	}, {
		key: "pathTo",
		value: function pathTo(node, offset, ignoreClass) {
			var segment = {
				steps: [],
				terminal: {
					offset: null,
					assertion: null
				}
			};
			var currentNode = node;
			var step;

			while (currentNode && currentNode.parentNode && currentNode.parentNode.nodeType != DOCUMENT_NODE) {

				if (ignoreClass) {
					step = this.filteredStep(currentNode, ignoreClass);
				} else {
					step = this.step(currentNode);
				}

				if (step) {
					segment.steps.unshift(step);
				}

				currentNode = currentNode.parentNode;
			}

			if (offset != null && offset >= 0) {

				segment.terminal.offset = offset;

				// Make sure we are getting to a textNode if there is an offset
				if (segment.steps[segment.steps.length - 1].type != "text") {
					segment.steps.push({
						"type": "text",
						"index": 0
					});
				}
			}

			return segment;
		}
	}, {
		key: "equalStep",
		value: function equalStep(stepA, stepB) {
			if (!stepA || !stepB) {
				return false;
			}

			if (stepA.index === stepB.index && stepA.id === stepB.id && stepA.type === stepB.type) {
				return true;
			}

			return false;
		}
	}, {
		key: "fromRange",
		value: function fromRange(range, base, ignoreClass) {
			var cfi = {
				range: false,
				base: {},
				path: {},
				start: null,
				end: null
			};

			var start = range.startContainer;
			var end = range.endContainer;

			var startOffset = range.startOffset;
			var endOffset = range.endOffset;

			var needsIgnoring = false;

			if (ignoreClass) {
				// Tell pathTo if / what to ignore
				needsIgnoring = start.ownerDocument.querySelector("." + ignoreClass) != null;
			}

			if (typeof base === "string") {
				cfi.base = this.parseComponent(base);
				cfi.spinePos = cfi.base.steps[1].index;
			} else if ((typeof base === "undefined" ? "undefined" : _typeof(base)) === "object") {
				cfi.base = base;
			}

			if (range.collapsed) {
				if (needsIgnoring) {
					startOffset = this.patchOffset(start, startOffset, ignoreClass);
				}
				cfi.path = this.pathTo(start, startOffset, ignoreClass);
			} else {
				cfi.range = true;

				if (needsIgnoring) {
					startOffset = this.patchOffset(start, startOffset, ignoreClass);
				}

				cfi.start = this.pathTo(start, startOffset, ignoreClass);
				if (needsIgnoring) {
					endOffset = this.patchOffset(end, endOffset, ignoreClass);
				}

				cfi.end = this.pathTo(end, endOffset, ignoreClass);

				// Create a new empty path
				cfi.path = {
					steps: [],
					terminal: null
				};

				// Push steps that are shared between start and end to the common path
				var len = cfi.start.steps.length;
				var i;

				for (i = 0; i < len; i++) {
					if (this.equalStep(cfi.start.steps[i], cfi.end.steps[i])) {
						if (i === len - 1) {
							// Last step is equal, check terminals
							if (cfi.start.terminal === cfi.end.terminal) {
								// CFI's are equal
								cfi.path.steps.push(cfi.start.steps[i]);
								// Not a range
								cfi.range = false;
							}
						} else {
							cfi.path.steps.push(cfi.start.steps[i]);
						}
					} else {
						break;
					}
				}

				cfi.start.steps = cfi.start.steps.slice(cfi.path.steps.length);
				cfi.end.steps = cfi.end.steps.slice(cfi.path.steps.length);

				// TODO: Add Sanity check to make sure that the end if greater than the start
			}

			return cfi;
		}
	}, {
		key: "fromNode",
		value: function fromNode(anchor, base, ignoreClass) {
			var cfi = {
				range: false,
				base: {},
				path: {},
				start: null,
				end: null
			};

			if (typeof base === "string") {
				cfi.base = this.parseComponent(base);
				cfi.spinePos = cfi.base.steps[1].index;
			} else if ((typeof base === "undefined" ? "undefined" : _typeof(base)) === "object") {
				cfi.base = base;
			}

			cfi.path = this.pathTo(anchor, null, ignoreClass);

			return cfi;
		}
	}, {
		key: "filter",
		value: function filter(anchor, ignoreClass) {
			var needsIgnoring;
			var sibling; // to join with
			var parent, previousSibling, nextSibling;
			var isText = false;

			if (anchor.nodeType === TEXT_NODE) {
				isText = true;
				parent = anchor.parentNode;
				needsIgnoring = anchor.parentNode.classList.contains(ignoreClass);
			} else {
				isText = false;
				needsIgnoring = anchor.classList.contains(ignoreClass);
			}

			if (needsIgnoring && isText) {
				previousSibling = parent.previousSibling;
				nextSibling = parent.nextSibling;

				// If the sibling is a text node, join the nodes
				if (previousSibling && previousSibling.nodeType === TEXT_NODE) {
					sibling = previousSibling;
				} else if (nextSibling && nextSibling.nodeType === TEXT_NODE) {
					sibling = nextSibling;
				}

				if (sibling) {
					return sibling;
				} else {
					// Parent will be ignored on next step
					return anchor;
				}
			} else if (needsIgnoring && !isText) {
				// Otherwise just skip the element node
				return false;
			} else {
				// No need to filter
				return anchor;
			}
		}
	}, {
		key: "patchOffset",
		value: function patchOffset(anchor, offset, ignoreClass) {
			if (anchor.nodeType != TEXT_NODE) {
				throw new Error("Anchor must be a text node");
			}

			var curr = anchor;
			var totalOffset = offset;

			// If the parent is a ignored node, get offset from it's start
			if (anchor.parentNode.classList.contains(ignoreClass)) {
				curr = anchor.parentNode;
			}

			while (curr.previousSibling) {
				if (curr.previousSibling.nodeType === ELEMENT_NODE) {
					// Originally a text node, so join
					if (curr.previousSibling.classList.contains(ignoreClass)) {
						totalOffset += curr.previousSibling.textContent.length;
					} else {
						break; // Normal node, dont join
					}
				} else {
					// If the previous sibling is a text node, join the nodes
					totalOffset += curr.previousSibling.textContent.length;
				}

				curr = curr.previousSibling;
			}

			return totalOffset;
		}
	}, {
		key: "normalizedMap",
		value: function normalizedMap(children, nodeType, ignoreClass) {
			var output = {};
			var prevIndex = -1;
			var i,
			    len = children.length;
			var currNodeType;
			var prevNodeType;

			for (i = 0; i < len; i++) {

				currNodeType = children[i].nodeType;

				// Check if needs ignoring
				if (currNodeType === ELEMENT_NODE && children[i].classList.contains(ignoreClass)) {
					currNodeType = TEXT_NODE;
				}

				if (i > 0 && currNodeType === TEXT_NODE && prevNodeType === TEXT_NODE) {
					// join text nodes
					output[i] = prevIndex;
				} else if (nodeType === currNodeType) {
					prevIndex = prevIndex + 1;
					output[i] = prevIndex;
				}

				prevNodeType = currNodeType;
			}

			return output;
		}
	}, {
		key: "position",
		value: function position(anchor) {
			var children, index;
			if (anchor.nodeType === ELEMENT_NODE) {
				children = anchor.parentNode.children;
				if (!children) {
					children = (0, _core.findChildren)(anchor.parentNode);
				}
				index = Array.prototype.indexOf.call(children, anchor);
			} else {
				children = this.textNodes(anchor.parentNode);
				index = children.indexOf(anchor);
			}

			return index;
		}
	}, {
		key: "filteredPosition",
		value: function filteredPosition(anchor, ignoreClass) {
			var children, index, map;

			if (anchor.nodeType === ELEMENT_NODE) {
				children = anchor.parentNode.children;
				map = this.normalizedMap(children, ELEMENT_NODE, ignoreClass);
			} else {
				children = anchor.parentNode.childNodes;
				// Inside an ignored node
				if (anchor.parentNode.classList.contains(ignoreClass)) {
					anchor = anchor.parentNode;
					children = anchor.parentNode.childNodes;
				}
				map = this.normalizedMap(children, TEXT_NODE, ignoreClass);
			}

			index = Array.prototype.indexOf.call(children, anchor);

			return map[index];
		}
	}, {
		key: "stepsToXpath",
		value: function stepsToXpath(steps) {
			var xpath = [".", "*"];

			steps.forEach(function (step) {
				var position = step.index + 1;

				if (step.id) {
					xpath.push("*[position()=" + position + " and @id='" + step.id + "']");
				} else if (step.type === "text") {
					xpath.push("text()[" + position + "]");
				} else {
					xpath.push("*[" + position + "]");
				}
			});

			return xpath.join("/");
		}

		/*
  	To get the last step if needed:
  	// Get the terminal step
  lastStep = steps[steps.length-1];
  // Get the query string
  query = this.stepsToQuery(steps);
  // Find the containing element
  startContainerParent = doc.querySelector(query);
  // Find the text node within that element
  if(startContainerParent && lastStep.type == "text") {
  	container = startContainerParent.childNodes[lastStep.index];
  }
  */

	}, {
		key: "stepsToQuerySelector",
		value: function stepsToQuerySelector(steps) {
			var query = ["html"];

			steps.forEach(function (step) {
				var position = step.index + 1;

				if (step.id) {
					query.push("#" + step.id);
				} else if (step.type === "text") {
					// unsupported in querySelector
					// query.push("text()[" + position + "]");
				} else {
					query.push("*:nth-child(" + position + ")");
				}
			});

			return query.join(">");
		}
	}, {
		key: "textNodes",
		value: function textNodes(container, ignoreClass) {
			return Array.prototype.slice.call(container.childNodes).filter(function (node) {
				if (node.nodeType === TEXT_NODE) {
					return true;
				} else if (ignoreClass && node.classList.contains(ignoreClass)) {
					return true;
				}
				return false;
			});
		}
	}, {
		key: "walkToNode",
		value: function walkToNode(steps, _doc, ignoreClass) {
			var doc = _doc || document;
			var container = doc.documentElement;
			var step;
			var len = steps.length;
			var i;

			for (i = 0; i < len; i++) {
				step = steps[i];

				if (step.type === "element") {
					container = container.children[step.index];
				} else if (step.type === "text") {
					container = this.textNodes(container, ignoreClass)[step.index];
				}
			}

			return container;
		}
	}, {
		key: "findNode",
		value: function findNode(steps, _doc, ignoreClass) {
			var doc = _doc || document;
			var container;
			var xpath;

			if (!ignoreClass && typeof doc.evaluate != "undefined") {
				xpath = this.stepsToXpath(steps);
				container = doc.evaluate(xpath, doc, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
			} else if (ignoreClass) {
				container = this.walkToNode(steps, doc, ignoreClass);
			} else {
				container = this.walkToNode(steps, doc);
			}

			return container;
		}
	}, {
		key: "fixMiss",
		value: function fixMiss(steps, offset, _doc, ignoreClass) {
			var container = this.findNode(steps.slice(0, -1), _doc, ignoreClass);
			var children = container.childNodes;
			var map = this.normalizedMap(children, TEXT_NODE, ignoreClass);
			var child;
			var len;
			var lastStepIndex = steps[steps.length - 1].index;

			for (var childIndex in map) {
				if (!map.hasOwnProperty(childIndex)) return;

				if (map[childIndex] === lastStepIndex) {
					child = children[childIndex];
					len = child.textContent.length;
					if (offset > len) {
						offset = offset - len;
					} else {
						if (child.nodeType === ELEMENT_NODE) {
							container = child.childNodes[0];
						} else {
							container = child;
						}
						break;
					}
				}
			}

			return {
				container: container,
				offset: offset
			};
		}
	}, {
		key: "toRange",
		value: function toRange(_doc, ignoreClass) {
			var doc = _doc || document;
			var range = doc.createRange();
			var start, end, startContainer, endContainer;
			var cfi = this;
			var startSteps, endSteps;
			var needsIgnoring = ignoreClass ? doc.querySelector("." + ignoreClass) != null : false;
			var missed;

			if (cfi.range) {
				start = cfi.start;
				startSteps = cfi.path.steps.concat(start.steps);
				startContainer = this.findNode(startSteps, doc, needsIgnoring ? ignoreClass : null);
				end = cfi.end;
				endSteps = cfi.path.steps.concat(end.steps);
				endContainer = this.findNode(endSteps, doc, needsIgnoring ? ignoreClass : null);
			} else {
				start = cfi.path;
				startSteps = cfi.path.steps;
				startContainer = this.findNode(cfi.path.steps, doc, needsIgnoring ? ignoreClass : null);
			}

			if (startContainer) {
				try {

					if (start.terminal.offset != null) {
						range.setStart(startContainer, start.terminal.offset);
					} else {
						range.setStart(startContainer, 0);
					}
				} catch (e) {
					missed = this.fixMiss(startSteps, start.terminal.offset, doc, needsIgnoring ? ignoreClass : null);
					range.setStart(missed.container, missed.offset);
				}
			} else {
				// No start found
				return null;
			}

			if (endContainer) {
				try {

					if (end.terminal.offset != null) {
						range.setEnd(endContainer, end.terminal.offset);
					} else {
						range.setEnd(endContainer, 0);
					}
				} catch (e) {
					missed = this.fixMiss(endSteps, cfi.end.terminal.offset, doc, needsIgnoring ? ignoreClass : null);
					range.setEnd(missed.container, missed.offset);
				}
			}

			// doc.defaultView.getSelection().addRange(range);
			return range;
		}

		// is a cfi string, should be wrapped with "epubcfi()"

	}, {
		key: "isCfiString",
		value: function isCfiString(str) {
			if (typeof str === "string" && str.indexOf("epubcfi(") === 0 && str[str.length - 1] === ")") {
				return true;
			}

			return false;
		}
	}, {
		key: "generateChapterComponent",
		value: function generateChapterComponent(_spineNodeIndex, _pos, id) {
			var pos = parseInt(_pos),
			    spineNodeIndex = _spineNodeIndex + 1,
			    cfi = "/" + spineNodeIndex + "/";

			cfi += (pos + 1) * 2;

			if (id) {
				cfi += "[" + id + "]";
			}

			return cfi;
		}
	}]);

	return EpubCFI;
}();

exports.default = EpubCFI;
module.exports = exports["default"];

/***/ },
/* 2 */
/***/ function(module, exports, __webpack_require__) {

"use strict";
'use strict';

var d        = __webpack_require__(33)
  , callable = __webpack_require__(42)

  , apply = Function.prototype.apply, call = Function.prototype.call
  , create = Object.create, defineProperty = Object.defineProperty
  , defineProperties = Object.defineProperties
  , hasOwnProperty = Object.prototype.hasOwnProperty
  , descriptor = { configurable: true, enumerable: false, writable: true }

  , on, once, off, emit, methods, descriptors, base;

on = function (type, listener) {
	var data;

	callable(listener);

	if (!hasOwnProperty.call(this, '__ee__')) {
		data = descriptor.value = create(null);
		defineProperty(this, '__ee__', descriptor);
		descriptor.value = null;
	} else {
		data = this.__ee__;
	}
	if (!data[type]) data[type] = listener;
	else if (typeof data[type] === 'object') data[type].push(listener);
	else data[type] = [data[type], listener];

	return this;
};

once = function (type, listener) {
	var once, self;

	callable(listener);
	self = this;
	on.call(this, type, once = function () {
		off.call(self, type, once);
		apply.call(listener, this, arguments);
	});

	once.__eeOnceListener__ = listener;
	return this;
};

off = function (type, listener) {
	var data, listeners, candidate, i;

	callable(listener);

	if (!hasOwnProperty.call(this, '__ee__')) return this;
	data = this.__ee__;
	if (!data[type]) return this;
	listeners = data[type];

	if (typeof listeners === 'object') {
		for (i = 0; (candidate = listeners[i]); ++i) {
			if ((candidate === listener) ||
					(candidate.__eeOnceListener__ === listener)) {
				if (listeners.length === 2) data[type] = listeners[i ? 0 : 1];
				else listeners.splice(i, 1);
			}
		}
	} else {
		if ((listeners === listener) ||
				(listeners.__eeOnceListener__ === listener)) {
			delete data[type];
		}
	}

	return this;
};

emit = function (type) {
	var i, l, listener, listeners, args;

	if (!hasOwnProperty.call(this, '__ee__')) return;
	listeners = this.__ee__[type];
	if (!listeners) return;

	if (typeof listeners === 'object') {
		l = arguments.length;
		args = new Array(l - 1);
		for (i = 1; i < l; ++i) args[i - 1] = arguments[i];

		listeners = listeners.slice();
		for (i = 0; (listener = listeners[i]); ++i) {
			apply.call(listener, this, args);
		}
	} else {
		switch (arguments.length) {
		case 1:
			call.call(listeners, this);
			break;
		case 2:
			call.call(listeners, this, arguments[1]);
			break;
		case 3:
			call.call(listeners, this, arguments[1], arguments[2]);
			break;
		default:
			l = arguments.length;
			args = new Array(l - 1);
			for (i = 1; i < l; ++i) {
				args[i - 1] = arguments[i];
			}
			apply.call(listeners, this, args);
		}
	}
};

methods = {
	on: on,
	once: once,
	off: off,
	emit: emit
};

descriptors = {
	on: d(on),
	once: d(once),
	off: d(off),
	emit: d(emit)
};

base = defineProperties({}, descriptors);

module.exports = exports = function (o) {
	return (o == null) ? create(base) : defineProperties(Object(o), descriptors);
};
exports.methods = methods;


/***/ },
/* 3 */
/***/ function(module, exports, __webpack_require__) {

"use strict";
"use strict";

Object.defineProperty(exports, "__esModule", {
	value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _pathWebpack = __webpack_require__(5);

var _pathWebpack2 = _interopRequireDefault(_pathWebpack);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Path = function () {
	function Path(pathString) {
		_classCallCheck(this, Path);

		var protocol;
		var parsed;

		protocol = pathString.indexOf("://");
		if (protocol > -1) {
			pathString = new URL(pathString).pathname;
		}

		parsed = this.parse(pathString);

		this.path = pathString;

		if (this.isDirectory(pathString)) {
			this.directory = pathString;
		} else {
			this.directory = parsed.dir + "/";
		}

		this.filename = parsed.base;
		this.extension = parsed.ext.slice(1);
	}

	_createClass(Path, [{
		key: "parse",
		value: function parse(what) {
			return _pathWebpack2.default.parse(what);
		}
	}, {
		key: "isAbsolute",
		value: function isAbsolute(what) {
			return _pathWebpack2.default.isAbsolute(what || this.path);
		}
	}, {
		key: "isDirectory",
		value: function isDirectory(what) {
			return what.charAt(what.length - 1) === "/";
		}
	}, {
		key: "resolve",
		value: function resolve(what) {
			return _pathWebpack2.default.resolve(this.directory, what);
		}
	}, {
		key: "relative",
		value: function relative(what) {
			return _pathWebpack2.default.relative(this.directory, what);
		}
	}, {
		key: "splitPath",
		value: function splitPath(filename) {
			return this.splitPathRe.exec(filename).slice(1);
		}
	}, {
		key: "toString",
		value: function toString() {
			return this.path;
		}
	}]);

	return Path;
}();

exports.default = Path;
module.exports = exports["default"];

/***/ },
/* 4 */
/***/ function(module, exports, __webpack_require__) {

"use strict";
"use strict";

Object.defineProperty(exports, "__esModule", {
	value: true
});
exports.replaceBase = replaceBase;
exports.replaceCanonical = replaceCanonical;
exports.replaceLinks = replaceLinks;
exports.substitute = substitute;

var _core = __webpack_require__(0);

var _url = __webpack_require__(11);

var _url2 = _interopRequireDefault(_url);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function replaceBase(doc, section) {
	var base;
	var head;

	if (!doc) {
		return;
	}

	// head = doc.querySelector("head");
	// base = head.querySelector("base");
	head = (0, _core.qs)(doc, "head");
	base = (0, _core.qs)(head, "base");

	if (!base) {
		base = doc.createElement("base");
		head.insertBefore(base, head.firstChild);
	}

	base.setAttribute("href", section.url);
}

function replaceCanonical(doc, section) {
	var head;
	var link;
	var url = section.url; // window.location.origin +  window.location.pathname + "?loc=" + encodeURIComponent(section.url);

	if (!doc) {
		return;
	}

	head = (0, _core.qs)(doc, "head");
	link = (0, _core.qs)(head, "link[rel='canonical']");

	if (link) {
		link.setAttribute("href", url);
	} else {
		link = doc.createElement("link");
		link.setAttribute("rel", "canonical");
		link.setAttribute("href", url);
		head.appendChild(link);
	}
}
// TODO: move me to Contents
function replaceLinks(contents, fn) {

	var links = contents.querySelectorAll("a[href]");
	var base = (0, _core.qs)(contents.ownerDocument, "base");
	var location = base ? base.href : undefined;
	var replaceLink = function (link) {
		var href = link.getAttribute("href");

		if (href.indexOf("mailto:") === 0) {
			return;
		}

		var absolute = href.indexOf("://") > -1;
		var linkUrl = new _url2.default(href, location);

		if (absolute) {

			link.setAttribute("target", "_blank");
		} else {
			link.onclick = function () {

				if (linkUrl && linkUrl.hash) {
					fn(linkUrl.Path.path + linkUrl.hash);
				} else if (linkUrl) {
					fn(linkUrl.Path.path);
				} else {
					fn(href);
				}

				return false;
			};
		}
	}.bind(this);

	for (var i = 0; i < links.length; i++) {
		replaceLink(links[i]);
	}
}

function substitute(content, urls, replacements) {
	urls.forEach(function (url, i) {
		if (url && replacements[i]) {
			content = content.replace(new RegExp(url, "g"), replacements[i]);
		}
	});
	return content;
}

/***/ },
/* 5 */
/***/ function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(process) {'use strict';

function assertPath(path) {
  if (typeof path !== 'string') {
    throw new TypeError('Path must be a string. Received ' + path);
  }
}

// Resolves . and .. elements in a path with directory names
function normalizeStringPosix(path, allowAboveRoot) {
  var res = '';
  var lastSlash = -1;
  var dots = 0;
  var code;
  for (var i = 0; i <= path.length; ++i) {
    if (i < path.length)
      code = path.charCodeAt(i);
    else if (code === 47/*/*/)
      break;
    else
      code = 47/*/*/;
    if (code === 47/*/*/) {
      if (lastSlash === i - 1 || dots === 1) {
        // NOOP
      } else if (lastSlash !== i - 1 && dots === 2) {
        if (res.length < 2 ||
            res.charCodeAt(res.length - 1) !== 46/*.*/ ||
            res.charCodeAt(res.length - 2) !== 46/*.*/) {
          if (res.length > 2) {
            var start = res.length - 1;
            var j = start;
            for (; j >= 0; --j) {
              if (res.charCodeAt(j) === 47/*/*/)
                break;
            }
            if (j !== start) {
              if (j === -1)
                res = '';
              else
                res = res.slice(0, j);
              lastSlash = i;
              dots = 0;
              continue;
            }
          } else if (res.length === 2 || res.length === 1) {
            res = '';
            lastSlash = i;
            dots = 0;
            continue;
          }
        }
        if (allowAboveRoot) {
          if (res.length > 0)
            res += '/..';
          else
            res = '..';
        }
      } else {
        if (res.length > 0)
          res += '