Browse Source

HTML code editor for templates, assets optimizations

Vova Tkach 5 years ago
parent
commit
3d151529a1

+ 10 - 0
assets/assets.go

@@ -52,4 +52,14 @@ func PopulateResources(res *resource.Resource) {
 		"text/css",
 		CpWysiwygPellCss,
 	)
+	res.Add(
+		consts.AssetsCpCodeMirrorJs,
+		"application/javascript; charset=utf-8",
+		CpCodeMirrorJs,
+	)
+	res.Add(
+		consts.AssetsCpCodeMirrorCss,
+		"text/css",
+		CpCodeMirrorCss,
+	)
 }

+ 338 - 0
assets/cp.codemirror.css

@@ -0,0 +1,338 @@
+/* BASICS */
+.CodeMirror {
+	/* Set height, width, borders, and global font properties here */
+	font-family: monospace;
+	height: 300px;
+	color: black;
+	direction: ltr;
+}
+
+/* PADDING */
+.CodeMirror-lines {
+	padding: 4px 0; /* Vertical padding around content */
+}
+.CodeMirror pre {
+	padding: 0 4px; /* Horizontal padding of content */
+}
+
+.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+	background-color: white; /* The little square between H and V scrollbars */
+}
+
+/* GUTTER */
+.CodeMirror-gutters {
+	border-right: 1px solid #ddd;
+	background-color: #f7f7f7;
+	white-space: nowrap;
+}
+.CodeMirror-linenumbers {}
+.CodeMirror-linenumber {
+	padding: 0 3px 0 5px;
+	min-width: 20px;
+	text-align: right;
+	color: #999;
+	white-space: nowrap;
+}
+
+.CodeMirror-guttermarker { color: black; }
+.CodeMirror-guttermarker-subtle { color: #999; }
+
+/* CURSOR */
+.CodeMirror-cursor {
+	border-left: 1px solid black;
+	border-right: none;
+	width: 0;
+}
+/* Shown when moving in bi-directional text */
+.CodeMirror div.CodeMirror-secondarycursor {
+	border-left: 1px solid silver;
+}
+.cm-fat-cursor .CodeMirror-cursor {
+	width: auto;
+	border: 0 !important;
+	background: #7e7;
+}
+.cm-fat-cursor div.CodeMirror-cursors {
+	z-index: 1;
+}
+.cm-fat-cursor-mark {
+	background-color: rgba(20, 255, 20, 0.5);
+	-webkit-animation: blink 1.06s steps(1) infinite;
+	-moz-animation: blink 1.06s steps(1) infinite;
+	animation: blink 1.06s steps(1) infinite;
+}
+.cm-animate-fat-cursor {
+	width: auto;
+	border: 0;
+	-webkit-animation: blink 1.06s steps(1) infinite;
+	-moz-animation: blink 1.06s steps(1) infinite;
+	animation: blink 1.06s steps(1) infinite;
+	background-color: #7e7;
+}
+@-moz-keyframes blink {
+	0% {}
+	50% { background-color: transparent; }
+	100% {}
+}
+@-webkit-keyframes blink {
+	0% {}
+	50% { background-color: transparent; }
+	100% {}
+}
+@keyframes blink {
+	0% {}
+	50% { background-color: transparent; }
+	100% {}
+}
+
+/* Can style cursor different in overwrite (non-insert) mode */
+.CodeMirror-overwrite .CodeMirror-cursor {}
+
+.cm-tab { display: inline-block; text-decoration: inherit; }
+
+.CodeMirror-rulers {
+	position: absolute;
+	left: 0; right: 0; top: -50px; bottom: -20px;
+	overflow: hidden;
+}
+.CodeMirror-ruler {
+	border-left: 1px solid #ccc;
+	top: 0; bottom: 0;
+	position: absolute;
+}
+
+/* DEFAULT THEME */
+.cm-s-default .cm-header {color: blue;}
+.cm-s-default .cm-quote {color: #090;}
+.cm-negative {color: #d44;}
+.cm-positive {color: #292;}
+.cm-header, .cm-strong {font-weight: bold;}
+.cm-em {font-style: italic;}
+.cm-link {text-decoration: underline;}
+.cm-strikethrough {text-decoration: line-through;}
+.cm-s-default .cm-keyword {color: #708;}
+.cm-s-default .cm-atom {color: #219;}
+.cm-s-default .cm-number {color: #164;}
+.cm-s-default .cm-def {color: #00f;}
+.cm-s-default .cm-variable,
+.cm-s-default .cm-punctuation,
+.cm-s-default .cm-property,
+.cm-s-default .cm-operator {}
+.cm-s-default .cm-variable-2 {color: #05a;}
+.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}
+.cm-s-default .cm-comment {color: #a50;}
+.cm-s-default .cm-string {color: #a11;}
+.cm-s-default .cm-string-2 {color: #f50;}
+.cm-s-default .cm-meta {color: #555;}
+.cm-s-default .cm-qualifier {color: #555;}
+.cm-s-default .cm-builtin {color: #30a;}
+.cm-s-default .cm-bracket {color: #997;}
+.cm-s-default .cm-tag {color: #170;}
+.cm-s-default .cm-attribute {color: #00c;}
+.cm-s-default .cm-hr {color: #999;}
+.cm-s-default .cm-link {color: #00c;}
+
+.cm-s-default .cm-error {color: #f00;}
+.cm-invalidchar {color: #f00;}
+
+.CodeMirror-composing { border-bottom: 2px solid; }
+
+/* Default styles for common addons */
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;}
+.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
+.CodeMirror-activeline-background {background: #e8f2ff;}
+
+/* STOP */
+/* The rest of this file contains styles related to the mechanics of
+   the editor. You probably shouldn't touch them. */
+
+.CodeMirror {
+	position: relative;
+	overflow: hidden;
+	background: white;
+}
+
+.CodeMirror-scroll {
+	overflow: scroll !important; /* Things will break if this is overridden */
+	/* 30px is the magic margin used to hide the element's real scrollbars */
+	/* See overflow: hidden in .CodeMirror */
+	margin-bottom: -30px; margin-right: -30px;
+	padding-bottom: 30px;
+	height: 100%;
+	outline: none; /* Prevent dragging from highlighting the element */
+	position: relative;
+}
+.CodeMirror-sizer {
+	position: relative;
+	border-right: 30px solid transparent;
+}
+
+/* The fake, visible scrollbars. Used to force redraw during scrolling
+   before actual scrolling happens, thus preventing shaking and
+   flickering artifacts. */
+.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+	position: absolute;
+	z-index: 6;
+	display: none;
+}
+.CodeMirror-vscrollbar {
+	right: 0; top: 0;
+	overflow-x: hidden;
+	overflow-y: scroll;
+}
+.CodeMirror-hscrollbar {
+	bottom: 0; left: 0;
+	overflow-y: hidden;
+	overflow-x: scroll;
+}
+.CodeMirror-scrollbar-filler {
+	right: 0; bottom: 0;
+}
+.CodeMirror-gutter-filler {
+	left: 0; bottom: 0;
+}
+
+.CodeMirror-gutters {
+	position: absolute; left: 0; top: 0;
+	min-height: 100%;
+	z-index: 3;
+}
+.CodeMirror-gutter {
+	white-space: normal;
+	height: 100%;
+	display: inline-block;
+	vertical-align: top;
+	margin-bottom: -30px;
+}
+.CodeMirror-gutter-wrapper {
+	position: absolute;
+	z-index: 4;
+	background: none !important;
+	border: none !important;
+}
+.CodeMirror-gutter-background {
+	position: absolute;
+	top: 0; bottom: 0;
+	z-index: 4;
+}
+.CodeMirror-gutter-elt {
+	position: absolute;
+	cursor: default;
+	z-index: 4;
+}
+.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
+.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
+
+.CodeMirror-lines {
+	cursor: text;
+	min-height: 1px; /* prevents collapsing before first draw */
+}
+.CodeMirror pre {
+	/* Reset some styles that the rest of the page might have set */
+	-moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
+	border-width: 0;
+	background: transparent;
+	font-family: inherit;
+	font-size: inherit;
+	margin: 0;
+	white-space: pre;
+	word-wrap: normal;
+	line-height: inherit;
+	color: inherit;
+	z-index: 2;
+	position: relative;
+	overflow: visible;
+	-webkit-tap-highlight-color: transparent;
+	-webkit-font-variant-ligatures: contextual;
+	font-variant-ligatures: contextual;
+}
+.CodeMirror-wrap pre {
+	word-wrap: break-word;
+	white-space: pre-wrap;
+	word-break: normal;
+}
+
+.CodeMirror-linebackground {
+	position: absolute;
+	left: 0; right: 0; top: 0; bottom: 0;
+	z-index: 0;
+}
+
+.CodeMirror-linewidget {
+	position: relative;
+	z-index: 2;
+	padding: 0.1px; /* Force widget margins to stay inside of the container */
+}
+
+.CodeMirror-widget {}
+
+.CodeMirror-rtl pre { direction: rtl; }
+
+.CodeMirror-code {
+	outline: none;
+}
+
+/* Force content-box sizing for the elements where we expect it */
+.CodeMirror-scroll,
+.CodeMirror-sizer,
+.CodeMirror-gutter,
+.CodeMirror-gutters,
+.CodeMirror-linenumber {
+	-moz-box-sizing: content-box;
+	box-sizing: content-box;
+}
+
+.CodeMirror-measure {
+	position: absolute;
+	width: 100%;
+	height: 0;
+	overflow: hidden;
+	visibility: hidden;
+}
+
+.CodeMirror-cursor {
+	position: absolute;
+	pointer-events: none;
+}
+.CodeMirror-measure pre { position: static; }
+
+div.CodeMirror-cursors {
+	visibility: hidden;
+	position: relative;
+	z-index: 3;
+}
+div.CodeMirror-dragcursors {
+	visibility: visible;
+}
+
+.CodeMirror-focused div.CodeMirror-cursors {
+	visibility: visible;
+}
+
+.CodeMirror-selected { background: #d9d9d9; }
+.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
+.CodeMirror-crosshair { cursor: crosshair; }
+.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
+.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
+
+.cm-searching {
+	background-color: #ffa;
+	background-color: rgba(255, 255, 0, .4);
+}
+
+/* Used to force a border model for a node */
+.cm-force-border { padding-right: .1px; }
+
+@media print {
+	/* Hide the cursor when printing */
+	.CodeMirror div.CodeMirror-cursors {
+		visibility: hidden;
+	}
+}
+
+/* See issue #2901 */
+.cm-tab-wrap-hack:after { content: ''; }
+
+/* Help users use markselection to safely style text background */
+span.CodeMirror-selectedtext { background: none; }

File diff suppressed because it is too large
+ 2 - 0
assets/cp.codemirror.css.go


+ 12524 - 0
assets/cp.codemirror.js

@@ -0,0 +1,12524 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// This is CodeMirror (https://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global.CodeMirror = factory());
+}(this, (function () { 'use strict';
+
+	// Kludges for bugs and behavior differences that can't be feature
+	// detected are enabled based on userAgent etc sniffing.
+	var userAgent = navigator.userAgent;
+	var platform = navigator.platform;
+
+	var gecko = /gecko\/\d/i.test(userAgent);
+	var ie_upto10 = /MSIE \d/.test(userAgent);
+	var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
+	var edge = /Edge\/(\d+)/.exec(userAgent);
+	var ie = ie_upto10 || ie_11up || edge;
+	var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
+	var webkit = !edge && /WebKit\//.test(userAgent);
+	var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
+	var chrome = !edge && /Chrome\//.test(userAgent);
+	var presto = /Opera\//.test(userAgent);
+	var safari = /Apple Computer/.test(navigator.vendor);
+	var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
+	var phantom = /PhantomJS/.test(userAgent);
+
+	var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
+	var android = /Android/.test(userAgent);
+	// This is woefully incomplete. Suggestions for alternative methods welcome.
+	var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
+	var mac = ios || /Mac/.test(platform);
+	var chromeOS = /\bCrOS\b/.test(userAgent);
+	var windows = /win/i.test(platform);
+
+	var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
+	if (presto_version) { presto_version = Number(presto_version[1]); }
+	if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
+	// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+	var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
+	var captureRightClick = gecko || (ie && ie_version >= 9);
+
+	function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
+
+	var rmClass = function(node, cls) {
+		var current = node.className;
+		var match = classTest(cls).exec(current);
+		if (match) {
+			var after = current.slice(match.index + match[0].length);
+			node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
+		}
+	};
+
+	function removeChildren(e) {
+		for (var count = e.childNodes.length; count > 0; --count)
+			{ e.removeChild(e.firstChild); }
+		return e
+	}
+
+	function removeChildrenAndAdd(parent, e) {
+		return removeChildren(parent).appendChild(e)
+	}
+
+	function elt(tag, content, className, style) {
+		var e = document.createElement(tag);
+		if (className) { e.className = className; }
+		if (style) { e.style.cssText = style; }
+		if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
+		else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
+		return e
+	}
+	// wrapper for elt, which removes the elt from the accessibility tree
+	function eltP(tag, content, className, style) {
+		var e = elt(tag, content, className, style);
+		e.setAttribute("role", "presentation");
+		return e
+	}
+
+	var range;
+	if (document.createRange) { range = function(node, start, end, endNode) {
+		var r = document.createRange();
+		r.setEnd(endNode || node, end);
+		r.setStart(node, start);
+		return r
+	}; }
+	else { range = function(node, start, end) {
+		var r = document.body.createTextRange();
+		try { r.moveToElementText(node.parentNode); }
+		catch(e) { return r }
+		r.collapse(true);
+		r.moveEnd("character", end);
+		r.moveStart("character", start);
+		return r
+	}; }
+
+	function contains(parent, child) {
+		if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+			{ child = child.parentNode; }
+		if (parent.contains)
+			{ return parent.contains(child) }
+		do {
+			if (child.nodeType == 11) { child = child.host; }
+			if (child == parent) { return true }
+		} while (child = child.parentNode)
+	}
+
+	function activeElt() {
+		// IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
+		// IE < 10 will throw when accessed while the page is loading or in an iframe.
+		// IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
+		var activeElement;
+		try {
+			activeElement = document.activeElement;
+		} catch(e) {
+			activeElement = document.body || null;
+		}
+		while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
+			{ activeElement = activeElement.shadowRoot.activeElement; }
+		return activeElement
+	}
+
+	function addClass(node, cls) {
+		var current = node.className;
+		if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
+	}
+	function joinClasses(a, b) {
+		var as = a.split(" ");
+		for (var i = 0; i < as.length; i++)
+			{ if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
+		return b
+	}
+
+	var selectInput = function(node) { node.select(); };
+	if (ios) // Mobile Safari apparently has a bug where select() is broken.
+		{ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
+	else if (ie) // Suppress mysterious IE10 errors
+		{ selectInput = function(node) { try { node.select(); } catch(_e) {} }; }
+
+	function bind(f) {
+		var args = Array.prototype.slice.call(arguments, 1);
+		return function(){return f.apply(null, args)}
+	}
+
+	function copyObj(obj, target, overwrite) {
+		if (!target) { target = {}; }
+		for (var prop in obj)
+			{ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+				{ target[prop] = obj[prop]; } }
+		return target
+	}
+
+	// Counts the column offset in a string, taking tabs into account.
+	// Used mostly to find indentation.
+	function countColumn(string, end, tabSize, startIndex, startValue) {
+		if (end == null) {
+			end = string.search(/[^\s\u00a0]/);
+			if (end == -1) { end = string.length; }
+		}
+		for (var i = startIndex || 0, n = startValue || 0;;) {
+			var nextTab = string.indexOf("\t", i);
+			if (nextTab < 0 || nextTab >= end)
+				{ return n + (end - i) }
+			n += nextTab - i;
+			n += tabSize - (n % tabSize);
+			i = nextTab + 1;
+		}
+	}
+
+	var Delayed = function() {this.id = null;};
+	Delayed.prototype.set = function (ms, f) {
+		clearTimeout(this.id);
+		this.id = setTimeout(f, ms);
+	};
+
+	function indexOf(array, elt) {
+		for (var i = 0; i < array.length; ++i)
+			{ if (array[i] == elt) { return i } }
+		return -1
+	}
+
+	// Number of pixels added to scroller and sizer to hide scrollbar
+	var scrollerGap = 30;
+
+	// Returned or thrown by various protocols to signal 'I'm not
+	// handling this'.
+	var Pass = {toString: function(){return "CodeMirror.Pass"}};
+
+	// Reused option objects for setSelection & friends
+	var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
+
+	// The inverse of countColumn -- find the offset that corresponds to
+	// a particular column.
+	function findColumn(string, goal, tabSize) {
+		for (var pos = 0, col = 0;;) {
+			var nextTab = string.indexOf("\t", pos);
+			if (nextTab == -1) { nextTab = string.length; }
+			var skipped = nextTab - pos;
+			if (nextTab == string.length || col + skipped >= goal)
+				{ return pos + Math.min(skipped, goal - col) }
+			col += nextTab - pos;
+			col += tabSize - (col % tabSize);
+			pos = nextTab + 1;
+			if (col >= goal) { return pos }
+		}
+	}
+
+	var spaceStrs = [""];
+	function spaceStr(n) {
+		while (spaceStrs.length <= n)
+			{ spaceStrs.push(lst(spaceStrs) + " "); }
+		return spaceStrs[n]
+	}
+
+	function lst(arr) { return arr[arr.length-1] }
+
+	function map(array, f) {
+		var out = [];
+		for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
+		return out
+	}
+
+	function insertSorted(array, value, score) {
+		var pos = 0, priority = score(value);
+		while (pos < array.length && score(array[pos]) <= priority) { pos++; }
+		array.splice(pos, 0, value);
+	}
+
+	function nothing() {}
+
+	function createObj(base, props) {
+		var inst;
+		if (Object.create) {
+			inst = Object.create(base);
+		} else {
+			nothing.prototype = base;
+			inst = new nothing();
+		}
+		if (props) { copyObj(props, inst); }
+		return inst
+	}
+
+	var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
+	function isWordCharBasic(ch) {
+		return /\w/.test(ch) || ch > "\x80" &&
+			(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
+	}
+	function isWordChar(ch, helper) {
+		if (!helper) { return isWordCharBasic(ch) }
+		if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
+		return helper.test(ch)
+	}
+
+	function isEmpty(obj) {
+		for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
+		return true
+	}
+
+	// Extending unicode characters. A series of a non-extending char +
+	// any number of extending chars is treated as a single unit as far
+	// as editing and measuring is concerned. This is not fully correct,
+	// since some scripts/fonts/browsers also treat other configurations
+	// of code points as a group.
+	var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
+	function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
+
+	// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
+	function skipExtendingChars(str, pos, dir) {
+		while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
+		return pos
+	}
+
+	// Returns the value from the range [`from`; `to`] that satisfies
+	// `pred` and is closest to `from`. Assumes that at least `to`
+	// satisfies `pred`. Supports `from` being greater than `to`.
+	function findFirst(pred, from, to) {
+		// At any point we are certain `to` satisfies `pred`, don't know
+		// whether `from` does.
+		var dir = from > to ? -1 : 1;
+		for (;;) {
+			if (from == to) { return from }
+			var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
+			if (mid == from) { return pred(mid) ? from : to }
+			if (pred(mid)) { to = mid; }
+			else { from = mid + dir; }
+		}
+	}
+
+	// BIDI HELPERS
+
+	function iterateBidiSections(order, from, to, f) {
+		if (!order) { return f(from, to, "ltr", 0) }
+		var found = false;
+		for (var i = 0; i < order.length; ++i) {
+			var part = order[i];
+			if (part.from < to && part.to > from || from == to && part.to == from) {
+				f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
+				found = true;
+			}
+		}
+		if (!found) { f(from, to, "ltr"); }
+	}
+
+	var bidiOther = null;
+	function getBidiPartAt(order, ch, sticky) {
+		var found;
+		bidiOther = null;
+		for (var i = 0; i < order.length; ++i) {
+			var cur = order[i];
+			if (cur.from < ch && cur.to > ch) { return i }
+			if (cur.to == ch) {
+				if (cur.from != cur.to && sticky == "before") { found = i; }
+				else { bidiOther = i; }
+			}
+			if (cur.from == ch) {
+				if (cur.from != cur.to && sticky != "before") { found = i; }
+				else { bidiOther = i; }
+			}
+		}
+		return found != null ? found : bidiOther
+	}
+
+	// Bidirectional ordering algorithm
+	// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+	// that this (partially) implements.
+
+	// One-char codes used for character types:
+	// L (L):   Left-to-Right
+	// R (R):   Right-to-Left
+	// r (AL):  Right-to-Left Arabic
+	// 1 (EN):  European Number
+	// + (ES):  European Number Separator
+	// % (ET):  European Number Terminator
+	// n (AN):  Arabic Number
+	// , (CS):  Common Number Separator
+	// m (NSM): Non-Spacing Mark
+	// b (BN):  Boundary Neutral
+	// s (B):   Paragraph Separator
+	// t (S):   Segment Separator
+	// w (WS):  Whitespace
+	// N (ON):  Other Neutrals
+
+	// Returns null if characters are ordered as they appear
+	// (left-to-right), or an array of sections ({from, to, level}
+	// objects) in the order in which they occur visually.
+	var bidiOrdering = (function() {
+		// Character types for codepoints 0 to 0xff
+		var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
+		// Character types for codepoints 0x600 to 0x6f9
+		var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
+		function charType(code) {
+			if (code <= 0xf7) { return lowTypes.charAt(code) }
+			else if (0x590 <= code && code <= 0x5f4) { return "R" }
+			else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
+			else if (0x6ee <= code && code <= 0x8ac) { return "r" }
+			else if (0x2000 <= code && code <= 0x200b) { return "w" }
+			else if (code == 0x200c) { return "b" }
+			else { return "L" }
+		}
+
+		var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
+		var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
+
+		function BidiSpan(level, from, to) {
+			this.level = level;
+			this.from = from; this.to = to;
+		}
+
+		return function(str, direction) {
+			var outerType = direction == "ltr" ? "L" : "R";
+
+			if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
+			var len = str.length, types = [];
+			for (var i = 0; i < len; ++i)
+				{ types.push(charType(str.charCodeAt(i))); }
+
+			// W1. Examine each non-spacing mark (NSM) in the level run, and
+			// change the type of the NSM to the type of the previous
+			// character. If the NSM is at the start of the level run, it will
+			// get the type of sor.
+			for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
+				var type = types[i$1];
+				if (type == "m") { types[i$1] = prev; }
+				else { prev = type; }
+			}
+
+			// W2. Search backwards from each instance of a European number
+			// until the first strong type (R, L, AL, or sor) is found. If an
+			// AL is found, change the type of the European number to Arabic
+			// number.
+			// W3. Change all ALs to R.
+			for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
+				var type$1 = types[i$2];
+				if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
+				else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
+			}
+
+			// W4. A single European separator between two European numbers
+			// changes to a European number. A single common separator between
+			// two numbers of the same type changes to that type.
+			for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
+				var type$2 = types[i$3];
+				if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
+				else if (type$2 == "," && prev$1 == types[i$3+1] &&
+								 (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
+				prev$1 = type$2;
+			}
+
+			// W5. A sequence of European terminators adjacent to European
+			// numbers changes to all European numbers.
+			// W6. Otherwise, separators and terminators change to Other
+			// Neutral.
+			for (var i$4 = 0; i$4 < len; ++i$4) {
+				var type$3 = types[i$4];
+				if (type$3 == ",") { types[i$4] = "N"; }
+				else if (type$3 == "%") {
+					var end = (void 0);
+					for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
+					var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
+					for (var j = i$4; j < end; ++j) { types[j] = replace; }
+					i$4 = end - 1;
+				}
+			}
+
+			// W7. Search backwards from each instance of a European number
+			// until the first strong type (R, L, or sor) is found. If an L is
+			// found, then change the type of the European number to L.
+			for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
+				var type$4 = types[i$5];
+				if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
+				else if (isStrong.test(type$4)) { cur$1 = type$4; }
+			}
+
+			// N1. A sequence of neutrals takes the direction of the
+			// surrounding strong text if the text on both sides has the same
+			// direction. European and Arabic numbers act as if they were R in
+			// terms of their influence on neutrals. Start-of-level-run (sor)
+			// and end-of-level-run (eor) are used at level run boundaries.
+			// N2. Any remaining neutrals take the embedding direction.
+			for (var i$6 = 0; i$6 < len; ++i$6) {
+				if (isNeutral.test(types[i$6])) {
+					var end$1 = (void 0);
+					for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
+					var before = (i$6 ? types[i$6-1] : outerType) == "L";
+					var after = (end$1 < len ? types[end$1] : outerType) == "L";
+					var replace$1 = before == after ? (before ? "L" : "R") : outerType;
+					for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
+					i$6 = end$1 - 1;
+				}
+			}
+
+			// Here we depart from the documented algorithm, in order to avoid
+			// building up an actual levels array. Since there are only three
+			// levels (0, 1, 2) in an implementation that doesn't take
+			// explicit embedding into account, we can build up the order on
+			// the fly, without following the level-based algorithm.
+			var order = [], m;
+			for (var i$7 = 0; i$7 < len;) {
+				if (countsAsLeft.test(types[i$7])) {
+					var start = i$7;
+					for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
+					order.push(new BidiSpan(0, start, i$7));
+				} else {
+					var pos = i$7, at = order.length;
+					for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
+					for (var j$2 = pos; j$2 < i$7;) {
+						if (countsAsNum.test(types[j$2])) {
+							if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); }
+							var nstart = j$2;
+							for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
+							order.splice(at, 0, new BidiSpan(2, nstart, j$2));
+							pos = j$2;
+						} else { ++j$2; }
+					}
+					if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
+				}
+			}
+			if (direction == "ltr") {
+				if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+					order[0].from = m[0].length;
+					order.unshift(new BidiSpan(0, 0, m[0].length));
+				}
+				if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+					lst(order).to -= m[0].length;
+					order.push(new BidiSpan(0, len - m[0].length, len));
+				}
+			}
+
+			return direction == "rtl" ? order.reverse() : order
+		}
+	})();
+
+	// Get the bidi ordering for the given line (and cache it). Returns
+	// false for lines that are fully left-to-right, and an array of
+	// BidiSpan objects otherwise.
+	function getOrder(line, direction) {
+		var order = line.order;
+		if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
+		return order
+	}
+
+	// EVENT HANDLING
+
+	// Lightweight event framework. on/off also work on DOM nodes,
+	// registering native DOM handlers.
+
+	var noHandlers = [];
+
+	var on = function(emitter, type, f) {
+		if (emitter.addEventListener) {
+			emitter.addEventListener(type, f, false);
+		} else if (emitter.attachEvent) {
+			emitter.attachEvent("on" + type, f);
+		} else {
+			var map$$1 = emitter._handlers || (emitter._handlers = {});
+			map$$1[type] = (map$$1[type] || noHandlers).concat(f);
+		}
+	};
+
+	function getHandlers(emitter, type) {
+		return emitter._handlers && emitter._handlers[type] || noHandlers
+	}
+
+	function off(emitter, type, f) {
+		if (emitter.removeEventListener) {
+			emitter.removeEventListener(type, f, false);
+		} else if (emitter.detachEvent) {
+			emitter.detachEvent("on" + type, f);
+		} else {
+			var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type];
+			if (arr) {
+				var index = indexOf(arr, f);
+				if (index > -1)
+					{ map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
+			}
+		}
+	}
+
+	function signal(emitter, type /*, values...*/) {
+		var handlers = getHandlers(emitter, type);
+		if (!handlers.length) { return }
+		var args = Array.prototype.slice.call(arguments, 2);
+		for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
+	}
+
+	// The DOM events that CodeMirror handles can be overridden by
+	// registering a (non-DOM) handler on the editor for the event name,
+	// and preventDefault-ing the event in that handler.
+	function signalDOMEvent(cm, e, override) {
+		if (typeof e == "string")
+			{ e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
+		signal(cm, override || e.type, cm, e);
+		return e_defaultPrevented(e) || e.codemirrorIgnore
+	}
+
+	function signalCursorActivity(cm) {
+		var arr = cm._handlers && cm._handlers.cursorActivity;
+		if (!arr) { return }
+		var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
+		for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
+			{ set.push(arr[i]); } }
+	}
+
+	function hasHandler(emitter, type) {
+		return getHandlers(emitter, type).length > 0
+	}
+
+	// Add on and off methods to a constructor's prototype, to make
+	// registering events on such objects more convenient.
+	function eventMixin(ctor) {
+		ctor.prototype.on = function(type, f) {on(this, type, f);};
+		ctor.prototype.off = function(type, f) {off(this, type, f);};
+	}
+
+	// Due to the fact that we still support jurassic IE versions, some
+	// compatibility wrappers are needed.
+
+	function e_preventDefault(e) {
+		if (e.preventDefault) { e.preventDefault(); }
+		else { e.returnValue = false; }
+	}
+	function e_stopPropagation(e) {
+		if (e.stopPropagation) { e.stopPropagation(); }
+		else { e.cancelBubble = true; }
+	}
+	function e_defaultPrevented(e) {
+		return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
+	}
+	function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
+
+	function e_target(e) {return e.target || e.srcElement}
+	function e_button(e) {
+		var b = e.which;
+		if (b == null) {
+			if (e.button & 1) { b = 1; }
+			else if (e.button & 2) { b = 3; }
+			else if (e.button & 4) { b = 2; }
+		}
+		if (mac && e.ctrlKey && b == 1) { b = 3; }
+		return b
+	}
+
+	// Detect drag-and-drop
+	var dragAndDrop = function() {
+		// There is *some* kind of drag-and-drop support in IE6-8, but I
+		// couldn't get it to work yet.
+		if (ie && ie_version < 9) { return false }
+		var div = elt('div');
+		return "draggable" in div || "dragDrop" in div
+	}();
+
+	var zwspSupported;
+	function zeroWidthElement(measure) {
+		if (zwspSupported == null) {
+			var test = elt("span", "\u200b");
+			removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
+			if (measure.firstChild.offsetHeight != 0)
+				{ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
+		}
+		var node = zwspSupported ? elt("span", "\u200b") :
+			elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
+		node.setAttribute("cm-text", "");
+		return node
+	}
+
+	// Feature-detect IE's crummy client rect reporting for bidi text
+	var badBidiRects;
+	function hasBadBidiRects(measure) {
+		if (badBidiRects != null) { return badBidiRects }
+		var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
+		var r0 = range(txt, 0, 1).getBoundingClientRect();
+		var r1 = range(txt, 1, 2).getBoundingClientRect();
+		removeChildren(measure);
+		if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
+		return badBidiRects = (r1.right - r0.right < 3)
+	}
+
+	// See if "".split is the broken IE version, if so, provide an
+	// alternative way to split lines.
+	var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
+		var pos = 0, result = [], l = string.length;
+		while (pos <= l) {
+			var nl = string.indexOf("\n", pos);
+			if (nl == -1) { nl = string.length; }
+			var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
+			var rt = line.indexOf("\r");
+			if (rt != -1) {
+				result.push(line.slice(0, rt));
+				pos += rt + 1;
+			} else {
+				result.push(line);
+				pos = nl + 1;
+			}
+		}
+		return result
+	} : function (string) { return string.split(/\r\n?|\n/); };
+
+	var hasSelection = window.getSelection ? function (te) {
+		try { return te.selectionStart != te.selectionEnd }
+		catch(e) { return false }
+	} : function (te) {
+		var range$$1;
+		try {range$$1 = te.ownerDocument.selection.createRange();}
+		catch(e) {}
+		if (!range$$1 || range$$1.parentElement() != te) { return false }
+		return range$$1.compareEndPoints("StartToEnd", range$$1) != 0
+	};
+
+	var hasCopyEvent = (function () {
+		var e = elt("div");
+		if ("oncopy" in e) { return true }
+		e.setAttribute("oncopy", "return;");
+		return typeof e.oncopy == "function"
+	})();
+
+	var badZoomedRects = null;
+	function hasBadZoomedRects(measure) {
+		if (badZoomedRects != null) { return badZoomedRects }
+		var node = removeChildrenAndAdd(measure, elt("span", "x"));
+		var normal = node.getBoundingClientRect();
+		var fromRange = range(node, 0, 1).getBoundingClientRect();
+		return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
+	}
+
+	// Known modes, by name and by MIME
+	var modes = {}, mimeModes = {};
+
+	// Extra arguments are stored as the mode's dependencies, which is
+	// used by (legacy) mechanisms like loadmode.js to automatically
+	// load a mode. (Preferred mechanism is the require/define calls.)
+	function defineMode(name, mode) {
+		if (arguments.length > 2)
+			{ mode.dependencies = Array.prototype.slice.call(arguments, 2); }
+		modes[name] = mode;
+	}
+
+	function defineMIME(mime, spec) {
+		mimeModes[mime] = spec;
+	}
+
+	// Given a MIME type, a {name, ...options} config object, or a name
+	// string, return a mode config object.
+	function resolveMode(spec) {
+		if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+			spec = mimeModes[spec];
+		} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+			var found = mimeModes[spec.name];
+			if (typeof found == "string") { found = {name: found}; }
+			spec = createObj(found, spec);
+			spec.name = found.name;
+		} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+			return resolveMode("application/xml")
+		} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
+			return resolveMode("application/json")
+		}
+		if (typeof spec == "string") { return {name: spec} }
+		else { return spec || {name: "null"} }
+	}
+
+	// Given a mode spec (anything that resolveMode accepts), find and
+	// initialize an actual mode object.
+	function getMode(options, spec) {
+		spec = resolveMode(spec);
+		var mfactory = modes[spec.name];
+		if (!mfactory) { return getMode(options, "text/plain") }
+		var modeObj = mfactory(options, spec);
+		if (modeExtensions.hasOwnProperty(spec.name)) {
+			var exts = modeExtensions[spec.name];
+			for (var prop in exts) {
+				if (!exts.hasOwnProperty(prop)) { continue }
+				if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
+				modeObj[prop] = exts[prop];
+			}
+		}
+		modeObj.name = spec.name;
+		if (spec.helperType) { modeObj.helperType = spec.helperType; }
+		if (spec.modeProps) { for (var prop$1 in spec.modeProps)
+			{ modeObj[prop$1] = spec.modeProps[prop$1]; } }
+
+		return modeObj
+	}
+
+	// This can be used to attach properties to mode objects from
+	// outside the actual mode definition.
+	var modeExtensions = {};
+	function extendMode(mode, properties) {
+		var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+		copyObj(properties, exts);
+	}
+
+	function copyState(mode, state) {
+		if (state === true) { return state }
+		if (mode.copyState) { return mode.copyState(state) }
+		var nstate = {};
+		for (var n in state) {
+			var val = state[n];
+			if (val instanceof Array) { val = val.concat([]); }
+			nstate[n] = val;
+		}
+		return nstate
+	}
+
+	// Given a mode and a state (for that mode), find the inner mode and
+	// state at the position that the state refers to.
+	function innerMode(mode, state) {
+		var info;
+		while (mode.innerMode) {
+			info = mode.innerMode(state);
+			if (!info || info.mode == mode) { break }
+			state = info.state;
+			mode = info.mode;
+		}
+		return info || {mode: mode, state: state}
+	}
+
+	function startState(mode, a1, a2) {
+		return mode.startState ? mode.startState(a1, a2) : true
+	}
+
+	// STRING STREAM
+
+	// Fed to the mode parsers, provides helper functions to make
+	// parsers more succinct.
+
+	var StringStream = function(string, tabSize, lineOracle) {
+		this.pos = this.start = 0;
+		this.string = string;
+		this.tabSize = tabSize || 8;
+		this.lastColumnPos = this.lastColumnValue = 0;
+		this.lineStart = 0;
+		this.lineOracle = lineOracle;
+	};
+
+	StringStream.prototype.eol = function () {return this.pos >= this.string.length};
+	StringStream.prototype.sol = function () {return this.pos == this.lineStart};
+	StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
+	StringStream.prototype.next = function () {
+		if (this.pos < this.string.length)
+			{ return this.string.charAt(this.pos++) }
+	};
+	StringStream.prototype.eat = function (match) {
+		var ch = this.string.charAt(this.pos);
+		var ok;
+		if (typeof match == "string") { ok = ch == match; }
+		else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
+		if (ok) {++this.pos; return ch}
+	};
+	StringStream.prototype.eatWhile = function (match) {
+		var start = this.pos;
+		while (this.eat(match)){}
+		return this.pos > start
+	};
+	StringStream.prototype.eatSpace = function () {
+			var this$1 = this;
+
+		var start = this.pos;
+		while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; }
+		return this.pos > start
+	};
+	StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
+	StringStream.prototype.skipTo = function (ch) {
+		var found = this.string.indexOf(ch, this.pos);
+		if (found > -1) {this.pos = found; return true}
+	};
+	StringStream.prototype.backUp = function (n) {this.pos -= n;};
+	StringStream.prototype.column = function () {
+		if (this.lastColumnPos < this.start) {
+			this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+			this.lastColumnPos = this.start;
+		}
+		return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+	};
+	StringStream.prototype.indentation = function () {
+		return countColumn(this.string, null, this.tabSize) -
+			(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+	};
+	StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
+		if (typeof pattern == "string") {
+			var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
+			var substr = this.string.substr(this.pos, pattern.length);
+			if (cased(substr) == cased(pattern)) {
+				if (consume !== false) { this.pos += pattern.length; }
+				return true
+			}
+		} else {
+			var match = this.string.slice(this.pos).match(pattern);
+			if (match && match.index > 0) { return null }
+			if (match && consume !== false) { this.pos += match[0].length; }
+			return match
+		}
+	};
+	StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
+	StringStream.prototype.hideFirstChars = function (n, inner) {
+		this.lineStart += n;
+		try { return inner() }
+		finally { this.lineStart -= n; }
+	};
+	StringStream.prototype.lookAhead = function (n) {
+		var oracle = this.lineOracle;
+		return oracle && oracle.lookAhead(n)
+	};
+	StringStream.prototype.baseToken = function () {
+		var oracle = this.lineOracle;
+		return oracle && oracle.baseToken(this.pos)
+	};
+
+	// Find the line object corresponding to the given line number.
+	function getLine(doc, n) {
+		n -= doc.first;
+		if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
+		var chunk = doc;
+		while (!chunk.lines) {
+			for (var i = 0;; ++i) {
+				var child = chunk.children[i], sz = child.chunkSize();
+				if (n < sz) { chunk = child; break }
+				n -= sz;
+			}
+		}
+		return chunk.lines[n]
+	}
+
+	// Get the part of a document between two positions, as an array of
+	// strings.
+	function getBetween(doc, start, end) {
+		var out = [], n = start.line;
+		doc.iter(start.line, end.line + 1, function (line) {
+			var text = line.text;
+			if (n == end.line) { text = text.slice(0, end.ch); }
+			if (n == start.line) { text = text.slice(start.ch); }
+			out.push(text);
+			++n;
+		});
+		return out
+	}
+	// Get the lines between from and to, as array of strings.
+	function getLines(doc, from, to) {
+		var out = [];
+		doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
+		return out
+	}
+
+	// Update the height of a line, propagating the height change
+	// upwards to parent nodes.
+	function updateLineHeight(line, height) {
+		var diff = height - line.height;
+		if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
+	}
+
+	// Given a line object, find its line number by walking up through
+	// its parent links.
+	function lineNo(line) {
+		if (line.parent == null) { return null }
+		var cur = line.parent, no = indexOf(cur.lines, line);
+		for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+			for (var i = 0;; ++i) {
+				if (chunk.children[i] == cur) { break }
+				no += chunk.children[i].chunkSize();
+			}
+		}
+		return no + cur.first
+	}
+
+	// Find the line at the given vertical position, using the height
+	// information in the document tree.
+	function lineAtHeight(chunk, h) {
+		var n = chunk.first;
+		outer: do {
+			for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
+				var child = chunk.children[i$1], ch = child.height;
+				if (h < ch) { chunk = child; continue outer }
+				h -= ch;
+				n += child.chunkSize();
+			}
+			return n
+		} while (!chunk.lines)
+		var i = 0;
+		for (; i < chunk.lines.length; ++i) {
+			var line = chunk.lines[i], lh = line.height;
+			if (h < lh) { break }
+			h -= lh;
+		}
+		return n + i
+	}
+
+	function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
+
+	function lineNumberFor(options, i) {
+		return String(options.lineNumberFormatter(i + options.firstLineNumber))
+	}
+
+	// A Pos instance represents a position within the text.
+	function Pos(line, ch, sticky) {
+		if ( sticky === void 0 ) sticky = null;
+
+		if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
+		this.line = line;
+		this.ch = ch;
+		this.sticky = sticky;
+	}
+
+	// Compare two positions, return 0 if they are the same, a negative
+	// number when a is less, and a positive number otherwise.
+	function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
+
+	function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
+
+	function copyPos(x) {return Pos(x.line, x.ch)}
+	function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
+	function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
+
+	// Most of the external API clips given positions to make sure they
+	// actually exist within the document.
+	function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
+	function clipPos(doc, pos) {
+		if (pos.line < doc.first) { return Pos(doc.first, 0) }
+		var last = doc.first + doc.size - 1;
+		if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
+		return clipToLen(pos, getLine(doc, pos.line).text.length)
+	}
+	function clipToLen(pos, linelen) {
+		var ch = pos.ch;
+		if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
+		else if (ch < 0) { return Pos(pos.line, 0) }
+		else { return pos }
+	}
+	function clipPosArray(doc, array) {
+		var out = [];
+		for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
+		return out
+	}
+
+	var SavedContext = function(state, lookAhead) {
+		this.state = state;
+		this.lookAhead = lookAhead;
+	};
+
+	var Context = function(doc, state, line, lookAhead) {
+		this.state = state;
+		this.doc = doc;
+		this.line = line;
+		this.maxLookAhead = lookAhead || 0;
+		this.baseTokens = null;
+		this.baseTokenPos = 1;
+	};
+
+	Context.prototype.lookAhead = function (n) {
+		var line = this.doc.getLine(this.line + n);
+		if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
+		return line
+	};
+
+	Context.prototype.baseToken = function (n) {
+			var this$1 = this;
+
+		if (!this.baseTokens) { return null }
+		while (this.baseTokens[this.baseTokenPos] <= n)
+			{ this$1.baseTokenPos += 2; }
+		var type = this.baseTokens[this.baseTokenPos + 1];
+		return {type: type && type.replace(/( |^)overlay .*/, ""),
+						size: this.baseTokens[this.baseTokenPos] - n}
+	};
+
+	Context.prototype.nextLine = function () {
+		this.line++;
+		if (this.maxLookAhead > 0) { this.maxLookAhead--; }
+	};
+
+	Context.fromSaved = function (doc, saved, line) {
+		if (saved instanceof SavedContext)
+			{ return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
+		else
+			{ return new Context(doc, copyState(doc.mode, saved), line) }
+	};
+
+	Context.prototype.save = function (copy) {
+		var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
+		return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
+	};
+
+
+	// Compute a style array (an array starting with a mode generation
+	// -- for invalidation -- followed by pairs of end positions and
+	// style strings), which is used to highlight the tokens on the
+	// line.
+	function highlightLine(cm, line, context, forceToEnd) {
+		// A styles array always starts with a number identifying the
+		// mode/overlays that it is based on (for easy invalidation).
+		var st = [cm.state.modeGen], lineClasses = {};
+		// Compute the base array of styles
+		runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
+						lineClasses, forceToEnd);
+		var state = context.state;
+
+		// Run overlays, adjust style array.
+		var loop = function ( o ) {
+			context.baseTokens = st;
+			var overlay = cm.state.overlays[o], i = 1, at = 0;
+			context.state = true;
+			runMode(cm, line.text, overlay.mode, context, function (end, style) {
+				var start = i;
+				// Ensure there's a token end at the current position, and that i points at it
+				while (at < end) {
+					var i_end = st[i];
+					if (i_end > end)
+						{ st.splice(i, 1, end, st[i+1], i_end); }
+					i += 2;
+					at = Math.min(end, i_end);
+				}
+				if (!style) { return }
+				if (overlay.opaque) {
+					st.splice(start, i - start, end, "overlay " + style);
+					i = start + 2;
+				} else {
+					for (; start < i; start += 2) {
+						var cur = st[start+1];
+						st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
+					}
+				}
+			}, lineClasses);
+			context.state = state;
+			context.baseTokens = null;
+			context.baseTokenPos = 1;
+		};
+
+		for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
+
+		return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
+	}
+
+	function getLineStyles(cm, line, updateFrontier) {
+		if (!line.styles || line.styles[0] != cm.state.modeGen) {
+			var context = getContextBefore(cm, lineNo(line));
+			var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
+			var result = highlightLine(cm, line, context);
+			if (resetState) { context.state = resetState; }
+			line.stateAfter = context.save(!resetState);
+			line.styles = result.styles;
+			if (result.classes) { line.styleClasses = result.classes; }
+			else if (line.styleClasses) { line.styleClasses = null; }
+			if (updateFrontier === cm.doc.highlightFrontier)
+				{ cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
+		}
+		return line.styles
+	}
+
+	function getContextBefore(cm, n, precise) {
+		var doc = cm.doc, display = cm.display;
+		if (!doc.mode.startState) { return new Context(doc, true, n) }
+		var start = findStartLine(cm, n, precise);
+		var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
+		var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);
+
+		doc.iter(start, n, function (line) {
+			processLine(cm, line.text, context);
+			var pos = context.line;
+			line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
+			context.nextLine();
+		});
+		if (precise) { doc.modeFrontier = context.line; }
+		return context
+	}
+
+	// Lightweight form of highlight -- proceed over this line and
+	// update state, but don't save a style array. Used for lines that
+	// aren't currently visible.
+	function processLine(cm, text, context, startAt) {
+		var mode = cm.doc.mode;
+		var stream = new StringStream(text, cm.options.tabSize, context);
+		stream.start = stream.pos = startAt || 0;
+		if (text == "") { callBlankLine(mode, context.state); }
+		while (!stream.eol()) {
+			readToken(mode, stream, context.state);
+			stream.start = stream.pos;
+		}
+	}
+
+	function callBlankLine(mode, state) {
+		if (mode.blankLine) { return mode.blankLine(state) }
+		if (!mode.innerMode) { return }
+		var inner = innerMode(mode, state);
+		if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
+	}
+
+	function readToken(mode, stream, state, inner) {
+		for (var i = 0; i < 10; i++) {
+			if (inner) { inner[0] = innerMode(mode, state).mode; }
+			var style = mode.token(stream, state);
+			if (stream.pos > stream.start) { return style }
+		}
+		throw new Error("Mode " + mode.name + " failed to advance stream.")
+	}
+
+	var Token = function(stream, type, state) {
+		this.start = stream.start; this.end = stream.pos;
+		this.string = stream.current();
+		this.type = type || null;
+		this.state = state;
+	};
+
+	// Utility for getTokenAt and getLineTokens
+	function takeToken(cm, pos, precise, asArray) {
+		var doc = cm.doc, mode = doc.mode, style;
+		pos = clipPos(doc, pos);
+		var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
+		var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
+		if (asArray) { tokens = []; }
+		while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+			stream.start = stream.pos;
+			style = readToken(mode, stream, context.state);
+			if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
+		}
+		return asArray ? tokens : new Token(stream, style, context.state)
+	}
+
+	function extractLineClasses(type, output) {
+		if (type) { for (;;) {
+			var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
+			if (!lineClass) { break }
+			type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
+			var prop = lineClass[1] ? "bgClass" : "textClass";
+			if (output[prop] == null)
+				{ output[prop] = lineClass[2]; }
+			else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+				{ output[prop] += " " + lineClass[2]; }
+		} }
+		return type
+	}
+
+	// Run the given mode's parser over a line, calling f for each token.
+	function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
+		var flattenSpans = mode.flattenSpans;
+		if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
+		var curStart = 0, curStyle = null;
+		var stream = new StringStream(text, cm.options.tabSize, context), style;
+		var inner = cm.options.addModeClass && [null];
+		if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
+		while (!stream.eol()) {
+			if (stream.pos > cm.options.maxHighlightLength) {
+				flattenSpans = false;
+				if (forceToEnd) { processLine(cm, text, context, stream.pos); }
+				stream.pos = text.length;
+				style = null;
+			} else {
+				style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
+			}
+			if (inner) {
+				var mName = inner[0].name;
+				if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
+			}
+			if (!flattenSpans || curStyle != style) {
+				while (curStart < stream.start) {
+					curStart = Math.min(stream.start, curStart + 5000);
+					f(curStart, curStyle);
+				}
+				curStyle = style;
+			}
+			stream.start = stream.pos;
+		}
+		while (curStart < stream.pos) {
+			// Webkit seems to refuse to render text nodes longer than 57444
+			// characters, and returns inaccurate measurements in nodes
+			// starting around 5000 chars.
+			var pos = Math.min(stream.pos, curStart + 5000);
+			f(pos, curStyle);
+			curStart = pos;
+		}
+	}
+
+	// Finds the line to start with when starting a parse. Tries to
+	// find a line with a stateAfter, so that it can start with a
+	// valid state. If that fails, it returns the line with the
+	// smallest indentation, which tends to need the least context to
+	// parse correctly.
+	function findStartLine(cm, n, precise) {
+		var minindent, minline, doc = cm.doc;
+		var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
+		for (var search = n; search > lim; --search) {
+			if (search <= doc.first) { return doc.first }
+			var line = getLine(doc, search - 1), after = line.stateAfter;
+			if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
+				{ return search }
+			var indented = countColumn(line.text, null, cm.options.tabSize);
+			if (minline == null || minindent > indented) {
+				minline = search - 1;
+				minindent = indented;
+			}
+		}
+		return minline
+	}
+
+	function retreatFrontier(doc, n) {
+		doc.modeFrontier = Math.min(doc.modeFrontier, n);
+		if (doc.highlightFrontier < n - 10) { return }
+		var start = doc.first;
+		for (var line = n - 1; line > start; line--) {
+			var saved = getLine(doc, line).stateAfter;
+			// change is on 3
+			// state on line 1 looked ahead 2 -- so saw 3
+			// test 1 + 2 < 3 should cover this
+			if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
+				start = line + 1;
+				break
+			}
+		}
+		doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
+	}
+
+	// Optimize some code when these features are not used.
+	var sawReadOnlySpans = false, sawCollapsedSpans = false;
+
+	function seeReadOnlySpans() {
+		sawReadOnlySpans = true;
+	}
+
+	function seeCollapsedSpans() {
+		sawCollapsedSpans = true;
+	}
+
+	// TEXTMARKER SPANS
+
+	function MarkedSpan(marker, from, to) {
+		this.marker = marker;
+		this.from = from; this.to = to;
+	}
+
+	// Search an array of spans for a span matching the given marker.
+	function getMarkedSpanFor(spans, marker) {
+		if (spans) { for (var i = 0; i < spans.length; ++i) {
+			var span = spans[i];
+			if (span.marker == marker) { return span }
+		} }
+	}
+	// Remove a span from an array, returning undefined if no spans are
+	// left (we don't store arrays for lines without spans).
+	function removeMarkedSpan(spans, span) {
+		var r;
+		for (var i = 0; i < spans.length; ++i)
+			{ if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
+		return r
+	}
+	// Add a span to a line.
+	function addMarkedSpan(line, span) {
+		line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
+		span.marker.attachLine(line);
+	}
+
+	// Used for the algorithm that adjusts markers for a change in the
+	// document. These functions cut an array of spans at a given
+	// character position, returning an array of remaining chunks (or
+	// undefined if nothing remains).
+	function markedSpansBefore(old, startCh, isInsert) {
+		var nw;
+		if (old) { for (var i = 0; i < old.length; ++i) {
+			var span = old[i], marker = span.marker;
+			var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
+			if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+				var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
+				;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
+			}
+		} }
+		return nw
+	}
+	function markedSpansAfter(old, endCh, isInsert) {
+		var nw;
+		if (old) { for (var i = 0; i < old.length; ++i) {
+			var span = old[i], marker = span.marker;
+			var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
+			if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+				var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
+				;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+																							span.to == null ? null : span.to - endCh));
+			}
+		} }
+		return nw
+	}
+
+	// Given a change object, compute the new set of marker spans that
+	// cover the line in which the change took place. Removes spans
+	// entirely within the change, reconnects spans belonging to the
+	// same marker that appear on both sides of the change, and cuts off
+	// spans partially within the change. Returns an array of span
+	// arrays with one element for each line in (after) the change.
+	function stretchSpansOverChange(doc, change) {
+		if (change.full) { return null }
+		var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
+		var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
+		if (!oldFirst && !oldLast) { return null }
+
+		var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
+		// Get the spans that 'stick out' on both sides
+		var first = markedSpansBefore(oldFirst, startCh, isInsert);
+		var last = markedSpansAfter(oldLast, endCh, isInsert);
+
+		// Next, merge those two ends
+		var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
+		if (first) {
+			// Fix up .to properties of first
+			for (var i = 0; i < first.length; ++i) {
+				var span = first[i];
+				if (span.to == null) {
+					var found = getMarkedSpanFor(last, span.marker);
+					if (!found) { span.to = startCh; }
+					else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
+				}
+			}
+		}
+		if (last) {
+			// Fix up .from in last (or move them into first in case of sameLine)
+			for (var i$1 = 0; i$1 < last.length; ++i$1) {
+				var span$1 = last[i$1];
+				if (span$1.to != null) { span$1.to += offset; }
+				if (span$1.from == null) {
+					var found$1 = getMarkedSpanFor(first, span$1.marker);
+					if (!found$1) {
+						span$1.from = offset;
+						if (sameLine) { (first || (first = [])).push(span$1); }
+					}
+				} else {
+					span$1.from += offset;
+					if (sameLine) { (first || (first = [])).push(span$1); }
+				}
+			}
+		}
+		// Make sure we didn't create any zero-length spans
+		if (first) { first = clearEmptySpans(first); }
+		if (last && last != first) { last = clearEmptySpans(last); }
+
+		var newMarkers = [first];
+		if (!sameLine) {
+			// Fill gap with whole-line-spans
+			var gap = change.text.length - 2, gapMarkers;
+			if (gap > 0 && first)
+				{ for (var i$2 = 0; i$2 < first.length; ++i$2)
+					{ if (first[i$2].to == null)
+						{ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
+			for (var i$3 = 0; i$3 < gap; ++i$3)
+				{ newMarkers.push(gapMarkers); }
+			newMarkers.push(last);
+		}
+		return newMarkers
+	}
+
+	// Remove spans that are empty and don't have a clearWhenEmpty
+	// option of false.
+	function clearEmptySpans(spans) {
+		for (var i = 0; i < spans.length; ++i) {
+			var span = spans[i];
+			if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+				{ spans.splice(i--, 1); }
+		}
+		if (!spans.length) { return null }
+		return spans
+	}
+
+	// Used to 'clip' out readOnly ranges when making a change.
+	function removeReadOnlyRanges(doc, from, to) {
+		var markers = null;
+		doc.iter(from.line, to.line + 1, function (line) {
+			if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+				var mark = line.markedSpans[i].marker;
+				if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+					{ (markers || (markers = [])).push(mark); }
+			} }
+		});
+		if (!markers) { return null }
+		var parts = [{from: from, to: to}];
+		for (var i = 0; i < markers.length; ++i) {
+			var mk = markers[i], m = mk.find(0);
+			for (var j = 0; j < parts.length; ++j) {
+				var p = parts[j];
+				if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
+				var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
+				if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+					{ newParts.push({from: p.from, to: m.from}); }
+				if (dto > 0 || !mk.inclusiveRight && !dto)
+					{ newParts.push({from: m.to, to: p.to}); }
+				parts.splice.apply(parts, newParts);
+				j += newParts.length - 3;
+			}
+		}
+		return parts
+	}
+
+	// Connect or disconnect spans from a line.
+	function detachMarkedSpans(line) {
+		var spans = line.markedSpans;
+		if (!spans) { return }
+		for (var i = 0; i < spans.length; ++i)
+			{ spans[i].marker.detachLine(line); }
+		line.markedSpans = null;
+	}
+	function attachMarkedSpans(line, spans) {
+		if (!spans) { return }
+		for (var i = 0; i < spans.length; ++i)
+			{ spans[i].marker.attachLine(line); }
+		line.markedSpans = spans;
+	}
+
+	// Helpers used when computing which overlapping collapsed span
+	// counts as the larger one.
+	function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
+	function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
+
+	// Returns a number indicating which of two overlapping collapsed
+	// spans is larger (and thus includes the other). Falls back to
+	// comparing ids when the spans cover exactly the same range.
+	function compareCollapsedMarkers(a, b) {
+		var lenDiff = a.lines.length - b.lines.length;
+		if (lenDiff != 0) { return lenDiff }
+		var aPos = a.find(), bPos = b.find();
+		var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
+		if (fromCmp) { return -fromCmp }
+		var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
+		if (toCmp) { return toCmp }
+		return b.id - a.id
+	}
+
+	// Find out whether a line ends or starts in a collapsed span. If
+	// so, return the marker for that span.
+	function collapsedSpanAtSide(line, start) {
+		var sps = sawCollapsedSpans && line.markedSpans, found;
+		if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+			sp = sps[i];
+			if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+					(!found || compareCollapsedMarkers(found, sp.marker) < 0))
+				{ found = sp.marker; }
+		} }
+		return found
+	}
+	function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
+	function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
+
+	function collapsedSpanAround(line, ch) {
+		var sps = sawCollapsedSpans && line.markedSpans, found;
+		if (sps) { for (var i = 0; i < sps.length; ++i) {
+			var sp = sps[i];
+			if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
+					(!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
+		} }
+		return found
+	}
+
+	// Test whether there exists a collapsed span that partially
+	// overlaps (covers the start or end, but not both) of a new span.
+	// Such overlap is not allowed.
+	function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {
+		var line = getLine(doc, lineNo$$1);
+		var sps = sawCollapsedSpans && line.markedSpans;
+		if (sps) { for (var i = 0; i < sps.length; ++i) {
+			var sp = sps[i];
+			if (!sp.marker.collapsed) { continue }
+			var found = sp.marker.find(0);
+			var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
+			var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
+			if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
+			if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
+					fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
+				{ return true }
+		} }
+	}
+
+	// A visual line is a line as drawn on the screen. Folding, for
+	// example, can cause multiple logical lines to appear on the same
+	// visual line. This finds the start of the visual line that the
+	// given line is part of (usually that is the line itself).
+	function visualLine(line) {
+		var merged;
+		while (merged = collapsedSpanAtStart(line))
+			{ line = merged.find(-1, true).line; }
+		return line
+	}
+
+	function visualLineEnd(line) {
+		var merged;
+		while (merged = collapsedSpanAtEnd(line))
+			{ line = merged.find(1, true).line; }
+		return line
+	}
+
+	// Returns an array of logical lines that continue the visual line
+	// started by the argument, or undefined if there are no such lines.
+	function visualLineContinued(line) {
+		var merged, lines;
+		while (merged = collapsedSpanAtEnd(line)) {
+			line = merged.find(1, true).line
+			;(lines || (lines = [])).push(line);
+		}
+		return lines
+	}
+
+	// Get the line number of the start of the visual line that the
+	// given line number is part of.
+	function visualLineNo(doc, lineN) {
+		var line = getLine(doc, lineN), vis = visualLine(line);
+		if (line == vis) { return lineN }
+		return lineNo(vis)
+	}
+
+	// Get the line number of the start of the next visual line after
+	// the given line.
+	function visualLineEndNo(doc, lineN) {
+		if (lineN > doc.lastLine()) { return lineN }
+		var line = getLine(doc, lineN), merged;
+		if (!lineIsHidden(doc, line)) { return lineN }
+		while (merged = collapsedSpanAtEnd(line))
+			{ line = merged.find(1, true).line; }
+		return lineNo(line) + 1
+	}
+
+	// Compute whether a line is hidden. Lines count as hidden when they
+	// are part of a visual line that starts with another line, or when
+	// they are entirely covered by collapsed, non-widget span.
+	function lineIsHidden(doc, line) {
+		var sps = sawCollapsedSpans && line.markedSpans;
+		if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+			sp = sps[i];
+			if (!sp.marker.collapsed) { continue }
+			if (sp.from == null) { return true }
+			if (sp.marker.widgetNode) { continue }
+			if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+				{ return true }
+		} }
+	}
+	function lineIsHiddenInner(doc, line, span) {
+		if (span.to == null) {
+			var end = span.marker.find(1, true);
+			return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
+		}
+		if (span.marker.inclusiveRight && span.to == line.text.length)
+			{ return true }
+		for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
+			sp = line.markedSpans[i];
+			if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+					(sp.to == null || sp.to != span.from) &&
+					(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+					lineIsHiddenInner(doc, line, sp)) { return true }
+		}
+	}
+
+	// Find the height above the given line.
+	function heightAtLine(lineObj) {
+		lineObj = visualLine(lineObj);
+
+		var h = 0, chunk = lineObj.parent;
+		for (var i = 0; i < chunk.lines.length; ++i) {
+			var line = chunk.lines[i];
+			if (line == lineObj) { break }
+			else { h += line.height; }
+		}
+		for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+			for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
+				var cur = p.children[i$1];
+				if (cur == chunk) { break }
+				else { h += cur.height; }
+			}
+		}
+		return h
+	}
+
+	// Compute the character length of a line, taking into account
+	// collapsed ranges (see markText) that might hide parts, and join
+	// other lines onto it.
+	function lineLength(line) {
+		if (line.height == 0) { return 0 }
+		var len = line.text.length, merged, cur = line;
+		while (merged = collapsedSpanAtStart(cur)) {
+			var found = merged.find(0, true);
+			cur = found.from.line;
+			len += found.from.ch - found.to.ch;
+		}
+		cur = line;
+		while (merged = collapsedSpanAtEnd(cur)) {
+			var found$1 = merged.find(0, true);
+			len -= cur.text.length - found$1.from.ch;
+			cur = found$1.to.line;
+			len += cur.text.length - found$1.to.ch;
+		}
+		return len
+	}
+
+	// Find the longest line in the document.
+	function findMaxLine(cm) {
+		var d = cm.display, doc = cm.doc;
+		d.maxLine = getLine(doc, doc.first);
+		d.maxLineLength = lineLength(d.maxLine);
+		d.maxLineChanged = true;
+		doc.iter(function (line) {
+			var len = lineLength(line);
+			if (len > d.maxLineLength) {
+				d.maxLineLength = len;
+				d.maxLine = line;
+			}
+		});
+	}
+
+	// LINE DATA STRUCTURE
+
+	// Line objects. These hold state related to a line, including
+	// highlighting info (the styles array).
+	var Line = function(text, markedSpans, estimateHeight) {
+		this.text = text;
+		attachMarkedSpans(this, markedSpans);
+		this.height = estimateHeight ? estimateHeight(this) : 1;
+	};
+
+	Line.prototype.lineNo = function () { return lineNo(this) };
+	eventMixin(Line);
+
+	// Change the content (text, markers) of a line. Automatically
+	// invalidates cached information and tries to re-estimate the
+	// line's height.
+	function updateLine(line, text, markedSpans, estimateHeight) {
+		line.text = text;
+		if (line.stateAfter) { line.stateAfter = null; }
+		if (line.styles) { line.styles = null; }
+		if (line.order != null) { line.order = null; }
+		detachMarkedSpans(line);
+		attachMarkedSpans(line, markedSpans);
+		var estHeight = estimateHeight ? estimateHeight(line) : 1;
+		if (estHeight != line.height) { updateLineHeight(line, estHeight); }
+	}
+
+	// Detach a line from the document tree and its markers.
+	function cleanUpLine(line) {
+		line.parent = null;
+		detachMarkedSpans(line);
+	}
+
+	// Convert a style as returned by a mode (either null, or a string
+	// containing one or more styles) to a CSS style. This is cached,
+	// and also looks for line-wide styles.
+	var styleToClassCache = {}, styleToClassCacheWithMode = {};
+	function interpretTokenStyle(style, options) {
+		if (!style || /^\s*$/.test(style)) { return null }
+		var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
+		return cache[style] ||
+			(cache[style] = style.replace(/\S+/g, "cm-$&"))
+	}
+
+	// Render the DOM representation of the text of a line. Also builds
+	// up a 'line map', which points at the DOM nodes that represent
+	// specific stretches of text, and is used by the measuring code.
+	// The returned object contains the DOM node, this map, and
+	// information about line-wide styles that were set by the mode.
+	function buildLineContent(cm, lineView) {
+		// The padding-right forces the element to have a 'border', which
+		// is needed on Webkit to be able to get line-level bounding
+		// rectangles for it (in measureChar).
+		var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
+		var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
+									 col: 0, pos: 0, cm: cm,
+									 trailingSpace: false,
+									 splitSpaces: cm.getOption("lineWrapping")};
+		lineView.measure = {};
+
+		// Iterate over the logical lines that make up this visual line.
+		for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+			var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
+			builder.pos = 0;
+			builder.addToken = buildToken;
+			// Optionally wire in some hacks into the token-rendering
+			// algorithm, to deal with browser quirks.
+			if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
+				{ builder.addToken = buildTokenBadBidi(builder.addToken, order); }
+			builder.map = [];
+			var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
+			insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
+			if (line.styleClasses) {
+				if (line.styleClasses.bgClass)
+					{ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
+				if (line.styleClasses.textClass)
+					{ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
+			}
+
+			// Ensure at least a single node is present, for measuring.
+			if (builder.map.length == 0)
+				{ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }
+
+			// Store the map and a cache object for the current logical line
+			if (i == 0) {
+				lineView.measure.map = builder.map;
+				lineView.measure.cache = {};
+			} else {
+	(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
+				;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
+			}
+		}
+
+		// See issue #2901
+		if (webkit) {
+			var last = builder.content.lastChild;
+			if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
+				{ builder.content.className = "cm-tab-wrap-hack"; }
+		}
+
+		signal(cm, "renderLine", cm, lineView.line, builder.pre);
+		if (builder.pre.className)
+			{ builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }
+
+		return builder
+	}
+
+	function defaultSpecialCharPlaceholder(ch) {
+		var token = elt("span", "\u2022", "cm-invalidchar");
+		token.title = "\\u" + ch.charCodeAt(0).toString(16);
+		token.setAttribute("aria-label", token.title);
+		return token
+	}
+
+	// Build up the DOM representation for a single token, and add it to
+	// the line map. Takes care to render special characters separately.
+	function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
+		if (!text) { return }
+		var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
+		var special = builder.cm.state.specialChars, mustWrap = false;
+		var content;
+		if (!special.test(text)) {
+			builder.col += text.length;
+			content = document.createTextNode(displayText);
+			builder.map.push(builder.pos, builder.pos + text.length, content);
+			if (ie && ie_version < 9) { mustWrap = true; }
+			builder.pos += text.length;
+		} else {
+			content = document.createDocumentFragment();
+			var pos = 0;
+			while (true) {
+				special.lastIndex = pos;
+				var m = special.exec(text);
+				var skipped = m ? m.index - pos : text.length - pos;
+				if (skipped) {
+					var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
+					if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
+					else { content.appendChild(txt); }
+					builder.map.push(builder.pos, builder.pos + skipped, txt);
+					builder.col += skipped;
+					builder.pos += skipped;
+				}
+				if (!m) { break }
+				pos += skipped + 1;
+				var txt$1 = (void 0);
+				if (m[0] == "\t") {
+					var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
+					txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
+					txt$1.setAttribute("role", "presentation");
+					txt$1.setAttribute("cm-text", "\t");
+					builder.col += tabWidth;
+				} else if (m[0] == "\r" || m[0] == "\n") {
+					txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
+					txt$1.setAttribute("cm-text", m[0]);
+					builder.col += 1;
+				} else {
+					txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
+					txt$1.setAttribute("cm-text", m[0]);
+					if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
+					else { content.appendChild(txt$1); }
+					builder.col += 1;
+				}
+				builder.map.push(builder.pos, builder.pos + 1, txt$1);
+				builder.pos++;
+			}
+		}
+		builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
+		if (style || startStyle || endStyle || mustWrap || css) {
+			var fullStyle = style || "";
+			if (startStyle) { fullStyle += startStyle; }
+			if (endStyle) { fullStyle += endStyle; }
+			var token = elt("span", [content], fullStyle, css);
+			if (attributes) {
+				for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
+					{ token.setAttribute(attr, attributes[attr]); } }
+			}
+			return builder.content.appendChild(token)
+		}
+		builder.content.appendChild(content);
+	}
+
+	// Change some spaces to NBSP to prevent the browser from collapsing
+	// trailing spaces at the end of a line when rendering text (issue #1362).
+	function splitSpaces(text, trailingBefore) {
+		if (text.length > 1 && !/  /.test(text)) { return text }
+		var spaceBefore = trailingBefore, result = "";
+		for (var i = 0; i < text.length; i++) {
+			var ch = text.charAt(i);
+			if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
+				{ ch = "\u00a0"; }
+			result += ch;
+			spaceBefore = ch == " ";
+		}
+		return result
+	}
+
+	// Work around nonsense dimensions being reported for stretches of
+	// right-to-left text.
+	function buildTokenBadBidi(inner, order) {
+		return function (builder, text, style, startStyle, endStyle, css, attributes) {
+			style = style ? style + " cm-force-border" : "cm-force-border";
+			var start = builder.pos, end = start + text.length;
+			for (;;) {
+				// Find the part that overlaps with the start of this text
+				var part = (void 0);
+				for (var i = 0; i < order.length; i++) {
+					part = order[i];
+					if (part.to > start && part.from <= start) { break }
+				}
+				if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
+				inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
+				startStyle = null;
+				text = text.slice(part.to - start);
+				start = part.to;
+			}
+		}
+	}
+
+	function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+		var widget = !ignoreWidget && marker.widgetNode;
+		if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
+		if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+			if (!widget)
+				{ widget = builder.content.appendChild(document.createElement("span")); }
+			widget.setAttribute("cm-marker", marker.id);
+		}
+		if (widget) {
+			builder.cm.display.input.setUneditable(widget);
+			builder.content.appendChild(widget);
+		}
+		builder.pos += size;
+		builder.trailingSpace = false;
+	}
+
+	// Outputs a number of spans to make up a line, taking highlighting
+	// and marked text into account.
+	function insertLineContent(line, builder, styles) {
+		var spans = line.markedSpans, allText = line.text, at = 0;
+		if (!spans) {
+			for (var i$1 = 1; i$1 < styles.length; i$1+=2)
+				{ builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
+			return
+		}
+
+		var len = allText.length, pos = 0, i = 1, text = "", style, css;
+		var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
+		for (;;) {
+			if (nextChange == pos) { // Update current marker set
+				spanStyle = spanEndStyle = spanStartStyle = css = "";
+				attributes = null;
+				collapsed = null; nextChange = Infinity;
+				var foundBookmarks = [], endStyles = (void 0);
+				for (var j = 0; j < spans.length; ++j) {
+					var sp = spans[j], m = sp.marker;
+					if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+						foundBookmarks.push(m);
+					} else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+						if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+							nextChange = sp.to;
+							spanEndStyle = "";
+						}
+						if (m.className) { spanStyle += " " + m.className; }
+						if (m.css) { css = (css ? css + ";" : "") + m.css; }
+						if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
+						if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
+						// support for the old title property
+						// https://github.com/codemirror/CodeMirror/pull/5673
+						if (m.title) { (attributes || (attributes = {})).title = m.title; }
+						if (m.attributes) {
+							for (var attr in m.attributes)
+								{ (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
+						}
+						if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+							{ collapsed = sp; }
+					} else if (sp.from > pos && nextChange > sp.from) {
+						nextChange = sp.from;
+					}
+				}
+				if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
+					{ if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }
+
+				if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
+					{ buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
+				if (collapsed && (collapsed.from || 0) == pos) {
+					buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+														 collapsed.marker, collapsed.from == null);
+					if (collapsed.to == null) { return }
+					if (collapsed.to == pos) { collapsed = false; }
+				}
+			}
+			if (pos >= len) { break }
+
+			var upto = Math.min(len, nextChange);
+			while (true) {
+				if (text) {
+					var end = pos + text.length;
+					if (!collapsed) {
+						var tokenText = end > upto ? text.slice(0, upto - pos) : text;
+						builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+														 spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
+					}
+					if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
+					pos = end;
+					spanStartStyle = "";
+				}
+				text = allText.slice(at, at = styles[i++]);
+				style = interpretTokenStyle(styles[i++], builder.cm.options);
+			}
+		}
+	}
+
+
+	// These objects are used to represent the visible (currently drawn)
+	// part of the document. A LineView may correspond to multiple
+	// logical lines, if those are connected by collapsed ranges.
+	function LineView(doc, line, lineN) {
+		// The starting line
+		this.line = line;
+		// Continuing lines, if any
+		this.rest = visualLineContinued(line);
+		// Number of logical lines in this visual line
+		this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
+		this.node = this.text = null;
+		this.hidden = lineIsHidden(doc, line);
+	}
+
+	// Create a range of LineView objects for the given lines.
+	function buildViewArray(cm, from, to) {
+		var array = [], nextPos;
+		for (var pos = from; pos < to; pos = nextPos) {
+			var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
+			nextPos = pos + view.size;
+			array.push(view);
+		}
+		return array
+	}
+
+	var operationGroup = null;
+
+	function pushOperation(op) {
+		if (operationGroup) {
+			operationGroup.ops.push(op);
+		} else {
+			op.ownsGroup = operationGroup = {
+				ops: [op],
+				delayedCallbacks: []
+			};
+		}
+	}
+
+	function fireCallbacksForOps(group) {
+		// Calls delayed callbacks and cursorActivity handlers until no
+		// new ones appear
+		var callbacks = group.delayedCallbacks, i = 0;
+		do {
+			for (; i < callbacks.length; i++)
+				{ callbacks[i].call(null); }
+			for (var j = 0; j < group.ops.length; j++) {
+				var op = group.ops[j];
+				if (op.cursorActivityHandlers)
+					{ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+						{ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
+			}
+		} while (i < callbacks.length)
+	}
+
+	function finishOperation(op, endCb) {
+		var group = op.ownsGroup;
+		if (!group) { return }
+
+		try { fireCallbacksForOps(group); }
+		finally {
+			operationGroup = null;
+			endCb(group);
+		}
+	}
+
+	var orphanDelayedCallbacks = null;
+
+	// Often, we want to signal events at a point where we are in the
+	// middle of some work, but don't want the handler to start calling
+	// other methods on the editor, which might be in an inconsistent
+	// state or simply not expect any other events to happen.
+	// signalLater looks whether there are any handlers, and schedules
+	// them to be executed when the last operation ends, or, if no
+	// operation is active, when a timeout fires.
+	function signalLater(emitter, type /*, values...*/) {
+		var arr = getHandlers(emitter, type);
+		if (!arr.length) { return }
+		var args = Array.prototype.slice.call(arguments, 2), list;
+		if (operationGroup) {
+			list = operationGroup.delayedCallbacks;
+		} else if (orphanDelayedCallbacks) {
+			list = orphanDelayedCallbacks;
+		} else {
+			list = orphanDelayedCallbacks = [];
+			setTimeout(fireOrphanDelayed, 0);
+		}
+		var loop = function ( i ) {
+			list.push(function () { return arr[i].apply(null, args); });
+		};
+
+		for (var i = 0; i < arr.length; ++i)
+			loop( i );
+	}
+
+	function fireOrphanDelayed() {
+		var delayed = orphanDelayedCallbacks;
+		orphanDelayedCallbacks = null;
+		for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
+	}
+
+	// When an aspect of a line changes, a string is added to
+	// lineView.changes. This updates the relevant part of the line's
+	// DOM structure.
+	function updateLineForChanges(cm, lineView, lineN, dims) {
+		for (var j = 0; j < lineView.changes.length; j++) {
+			var type = lineView.changes[j];
+			if (type == "text") { updateLineText(cm, lineView); }
+			else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
+			else if (type == "class") { updateLineClasses(cm, lineView); }
+			else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
+		}
+		lineView.changes = null;
+	}
+
+	// Lines with gutter elements, widgets or a background class need to
+	// be wrapped, and have the extra elements added to the wrapper div
+	function ensureLineWrapped(lineView) {
+		if (lineView.node == lineView.text) {
+			lineView.node = elt("div", null, null, "position: relative");
+			if (lineView.text.parentNode)
+				{ lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
+			lineView.node.appendChild(lineView.text);
+			if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
+		}
+		return lineView.node
+	}
+
+	function updateLineBackground(cm, lineView) {
+		var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
+		if (cls) { cls += " CodeMirror-linebackground"; }
+		if (lineView.background) {
+			if (cls) { lineView.background.className = cls; }
+			else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
+		} else if (cls) {
+			var wrap = ensureLineWrapped(lineView);
+			lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
+			cm.display.input.setUneditable(lineView.background);
+		}
+	}
+
+	// Wrapper around buildLineContent which will reuse the structure
+	// in display.externalMeasured when possible.
+	function getLineContent(cm, lineView) {
+		var ext = cm.display.externalMeasured;
+		if (ext && ext.line == lineView.line) {
+			cm.display.externalMeasured = null;
+			lineView.measure = ext.measure;
+			return ext.built
+		}
+		return buildLineContent(cm, lineView)
+	}
+
+	// Redraw the line's text. Interacts with the background and text
+	// classes because the mode may output tokens that influence these
+	// classes.
+	function updateLineText(cm, lineView) {
+		var cls = lineView.text.className;
+		var built = getLineContent(cm, lineView);
+		if (lineView.text == lineView.node) { lineView.node = built.pre; }
+		lineView.text.parentNode.replaceChild(built.pre, lineView.text);
+		lineView.text = built.pre;
+		if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+			lineView.bgClass = built.bgClass;
+			lineView.textClass = built.textClass;
+			updateLineClasses(cm, lineView);
+		} else if (cls) {
+			lineView.text.className = cls;
+		}
+	}
+
+	function updateLineClasses(cm, lineView) {
+		updateLineBackground(cm, lineView);
+		if (lineView.line.wrapClass)
+			{ ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
+		else if (lineView.node != lineView.text)
+			{ lineView.node.className = ""; }
+		var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
+		lineView.text.className = textClass || "";
+	}
+
+	function updateLineGutter(cm, lineView, lineN, dims) {
+		if (lineView.gutter) {
+			lineView.node.removeChild(lineView.gutter);
+			lineView.gutter = null;
+		}
+		if (lineView.gutterBackground) {
+			lineView.node.removeChild(lineView.gutterBackground);
+			lineView.gutterBackground = null;
+		}
+		if (lineView.line.gutterClass) {
+			var wrap = ensureLineWrapped(lineView);
+			lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+																			("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
+			cm.display.input.setUneditable(lineView.gutterBackground);
+			wrap.insertBefore(lineView.gutterBackground, lineView.text);
+		}
+		var markers = lineView.line.gutterMarkers;
+		if (cm.options.lineNumbers || markers) {
+			var wrap$1 = ensureLineWrapped(lineView);
+			var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
+			cm.display.input.setUneditable(gutterWrap);
+			wrap$1.insertBefore(gutterWrap, lineView.text);
+			if (lineView.line.gutterClass)
+				{ gutterWrap.className += " " + lineView.line.gutterClass; }
+			if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+				{ lineView.lineNumber = gutterWrap.appendChild(
+					elt("div", lineNumberFor(cm.options, lineN),
+							"CodeMirror-linenumber CodeMirror-gutter-elt",
+							("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
+			if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {
+				var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];
+				if (found)
+					{ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
+																		 ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
+			} }
+		}
+	}
+
+	function updateLineWidgets(cm, lineView, dims) {
+		if (lineView.alignable) { lineView.alignable = null; }
+		for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
+			next = node.nextSibling;
+			if (node.className == "CodeMirror-linewidget")
+				{ lineView.node.removeChild(node); }
+		}
+		insertLineWidgets(cm, lineView, dims);
+	}
+
+	// Build a line's DOM representation from scratch
+	function buildLineElement(cm, lineView, lineN, dims) {
+		var built = getLineContent(cm, lineView);
+		lineView.text = lineView.node = built.pre;
+		if (built.bgClass) { lineView.bgClass = built.bgClass; }
+		if (built.textClass) { lineView.textClass = built.textClass; }
+
+		updateLineClasses(cm, lineView);
+		updateLineGutter(cm, lineView, lineN, dims);
+		insertLineWidgets(cm, lineView, dims);
+		return lineView.node
+	}
+
+	// A lineView may contain multiple logical lines (when merged by
+	// collapsed spans). The widgets for all of them need to be drawn.
+	function insertLineWidgets(cm, lineView, dims) {
+		insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
+		if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+			{ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
+	}
+
+	function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+		if (!line.widgets) { return }
+		var wrap = ensureLineWrapped(lineView);
+		for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+			var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
+			if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
+			positionLineWidget(widget, node, lineView, dims);
+			cm.display.input.setUneditable(node);
+			if (allowAbove && widget.above)
+				{ wrap.insertBefore(node, lineView.gutter || lineView.text); }
+			else
+				{ wrap.appendChild(node); }
+			signalLater(widget, "redraw");
+		}
+	}
+
+	function positionLineWidget(widget, node, lineView, dims) {
+		if (widget.noHScroll) {
+	(lineView.alignable || (lineView.alignable = [])).push(node);
+			var width = dims.wrapperWidth;
+			node.style.left = dims.fixedPos + "px";
+			if (!widget.coverGutter) {
+				width -= dims.gutterTotalWidth;
+				node.style.paddingLeft = dims.gutterTotalWidth + "px";
+			}
+			node.style.width = width + "px";
+		}
+		if (widget.coverGutter) {
+			node.style.zIndex = 5;
+			node.style.position = "relative";
+			if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
+		}
+	}
+
+	function widgetHeight(widget) {
+		if (widget.height != null) { return widget.height }
+		var cm = widget.doc.cm;
+		if (!cm) { return 0 }
+		if (!contains(document.body, widget.node)) {
+			var parentStyle = "position: relative;";
+			if (widget.coverGutter)
+				{ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
+			if (widget.noHScroll)
+				{ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
+			removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
+		}
+		return widget.height = widget.node.parentNode.offsetHeight
+	}
+
+	// Return true when the given mouse event happened in a widget
+	function eventInWidget(display, e) {
+		for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+			if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+					(n.parentNode == display.sizer && n != display.mover))
+				{ return true }
+		}
+	}
+
+	// POSITION MEASUREMENT
+
+	function paddingTop(display) {return display.lineSpace.offsetTop}
+	function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
+	function paddingH(display) {
+		if (display.cachedPaddingH) { return display.cachedPaddingH }
+		var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
+		var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
+		var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
+		if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
+		return data
+	}
+
+	function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
+	function displayWidth(cm) {
+		return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
+	}
+	function displayHeight(cm) {
+		return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
+	}
+
+	// Ensure the lineView.wrapping.heights array is populated. This is
+	// an array of bottom offsets for the lines that make up a drawn
+	// line. When lineWrapping is on, there might be more than one
+	// height.
+	function ensureLineHeights(cm, lineView, rect) {
+		var wrapping = cm.options.lineWrapping;
+		var curWidth = wrapping && displayWidth(cm);
+		if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+			var heights = lineView.measure.heights = [];
+			if (wrapping) {
+				lineView.measure.width = curWidth;
+				var rects = lineView.text.firstChild.getClientRects();
+				for (var i = 0; i < rects.length - 1; i++) {
+					var cur = rects[i], next = rects[i + 1];
+					if (Math.abs(cur.bottom - next.bottom) > 2)
+						{ heights.push((cur.bottom + next.top) / 2 - rect.top); }
+				}
+			}
+			heights.push(rect.bottom - rect.top);
+		}
+	}
+
+	// Find a line map (mapping character offsets to text nodes) and a
+	// measurement cache for the given line number. (A line view might
+	// contain multiple lines when collapsed ranges are present.)
+	function mapFromLineView(lineView, line, lineN) {
+		if (lineView.line == line)
+			{ return {map: lineView.measure.map, cache: lineView.measure.cache} }
+		for (var i = 0; i < lineView.rest.length; i++)
+			{ if (lineView.rest[i] == line)
+				{ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
+		for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
+			{ if (lineNo(lineView.rest[i$1]) > lineN)
+				{ return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
+	}
+
+	// Render a line into the hidden node display.externalMeasured. Used
+	// when measurement is needed for a line that's not in the viewport.
+	function updateExternalMeasurement(cm, line) {
+		line = visualLine(line);
+		var lineN = lineNo(line);
+		var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
+		view.lineN = lineN;
+		var built = view.built = buildLineContent(cm, view);
+		view.text = built.pre;
+		removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
+		return view
+	}
+
+	// Get a {top, bottom, left, right} box (in line-local coordinates)
+	// for a given character.
+	function measureChar(cm, line, ch, bias) {
+		return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
+	}
+
+	// Find a line view that corresponds to the given line number.
+	function findViewForLine(cm, lineN) {
+		if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+			{ return cm.display.view[findViewIndex(cm, lineN)] }
+		var ext = cm.display.externalMeasured;
+		if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+			{ return ext }
+	}
+
+	// Measurement can be split in two steps, the set-up work that
+	// applies to the whole line, and the measurement of the actual
+	// character. Functions like coordsChar, that need to do a lot of
+	// measurements in a row, can thus ensure that the set-up work is
+	// only done once.
+	function prepareMeasureForLine(cm, line) {
+		var lineN = lineNo(line);
+		var view = findViewForLine(cm, lineN);
+		if (view && !view.text) {
+			view = null;
+		} else if (view && view.changes) {
+			updateLineForChanges(cm, view, lineN, getDimensions(cm));
+			cm.curOp.forceUpdate = true;
+		}
+		if (!view)
+			{ view = updateExternalMeasurement(cm, line); }
+
+		var info = mapFromLineView(view, line, lineN);
+		return {
+			line: line, view: view, rect: null,
+			map: info.map, cache: info.cache, before: info.before,
+			hasHeights: false
+		}
+	}
+
+	// Given a prepared measurement object, measures the position of an
+	// actual character (or fetches it from the cache).
+	function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+		if (prepared.before) { ch = -1; }
+		var key = ch + (bias || ""), found;
+		if (prepared.cache.hasOwnProperty(key)) {
+			found = prepared.cache[key];
+		} else {
+			if (!prepared.rect)
+				{ prepared.rect = prepared.view.text.getBoundingClientRect(); }
+			if (!prepared.hasHeights) {
+				ensureLineHeights(cm, prepared.view, prepared.rect);
+				prepared.hasHeights = true;
+			}
+			found = measureCharInner(cm, prepared, ch, bias);
+			if (!found.bogus) { prepared.cache[key] = found; }
+		}
+		return {left: found.left, right: found.right,
+						top: varHeight ? found.rtop : found.top,
+						bottom: varHeight ? found.rbottom : found.bottom}
+	}
+
+	var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
+
+	function nodeAndOffsetInLineMap(map$$1, ch, bias) {
+		var node, start, end, collapse, mStart, mEnd;
+		// First, search the line map for the text node corresponding to,
+		// or closest to, the target character.
+		for (var i = 0; i < map$$1.length; i += 3) {
+			mStart = map$$1[i];
+			mEnd = map$$1[i + 1];
+			if (ch < mStart) {
+				start = 0; end = 1;
+				collapse = "left";
+			} else if (ch < mEnd) {
+				start = ch - mStart;
+				end = start + 1;
+			} else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) {
+				end = mEnd - mStart;
+				start = end - 1;
+				if (ch >= mEnd) { collapse = "right"; }
+			}
+			if (start != null) {
+				node = map$$1[i + 2];
+				if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+					{ collapse = bias; }
+				if (bias == "left" && start == 0)
+					{ while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) {
+						node = map$$1[(i -= 3) + 2];
+						collapse = "left";
+					} }
+				if (bias == "right" && start == mEnd - mStart)
+					{ while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) {
+						node = map$$1[(i += 3) + 2];
+						collapse = "right";
+					} }
+				break
+			}
+		}
+		return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
+	}
+
+	function getUsefulRect(rects, bias) {
+		var rect = nullRect;
+		if (bias == "left") { for (var i = 0; i < rects.length; i++) {
+			if ((rect = rects[i]).left != rect.right) { break }
+		} } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
+			if ((rect = rects[i$1]).left != rect.right) { break }
+		} }
+		return rect
+	}
+
+	function measureCharInner(cm, prepared, ch, bias) {
+		var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
+		var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
+
+		var rect;
+		if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+			for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+				while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
+				while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
+				if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
+					{ rect = node.parentNode.getBoundingClientRect(); }
+				else
+					{ rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
+				if (rect.left || rect.right || start == 0) { break }
+				end = start;
+				start = start - 1;
+				collapse = "right";
+			}
+			if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
+		} else { // If it is a widget, simply get the box for the whole widget.
+			if (start > 0) { collapse = bias = "right"; }
+			var rects;
+			if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+				{ rect = rects[bias == "right" ? rects.length - 1 : 0]; }
+			else
+				{ rect = node.getBoundingClientRect(); }
+		}
+		if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+			var rSpan = node.parentNode.getClientRects()[0];
+			if (rSpan)
+				{ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
+			else
+				{ rect = nullRect; }
+		}
+
+		var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
+		var mid = (rtop + rbot) / 2;
+		var heights = prepared.view.measure.heights;
+		var i = 0;
+		for (; i < heights.length - 1; i++)
+			{ if (mid < heights[i]) { break } }
+		var top = i ? heights[i - 1] : 0, bot = heights[i];
+		var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+									right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+									top: top, bottom: bot};
+		if (!rect.left && !rect.right) { result.bogus = true; }
+		if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
+
+		return result
+	}
+
+	// Work around problem with bounding client rects on ranges being
+	// returned incorrectly when zoomed on IE10 and below.
+	function maybeUpdateRectForZooming(measure, rect) {
+		if (!window.screen || screen.logicalXDPI == null ||
+				screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+			{ return rect }
+		var scaleX = screen.logicalXDPI / screen.deviceXDPI;
+		var scaleY = screen.logicalYDPI / screen.deviceYDPI;
+		return {left: rect.left * scaleX, right: rect.right * scaleX,
+						top: rect.top * scaleY, bottom: rect.bottom * scaleY}
+	}
+
+	function clearLineMeasurementCacheFor(lineView) {
+		if (lineView.measure) {
+			lineView.measure.cache = {};
+			lineView.measure.heights = null;
+			if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+				{ lineView.measure.caches[i] = {}; } }
+		}
+	}
+
+	function clearLineMeasurementCache(cm) {
+		cm.display.externalMeasure = null;
+		removeChildren(cm.display.lineMeasure);
+		for (var i = 0; i < cm.display.view.length; i++)
+			{ clearLineMeasurementCacheFor(cm.display.view[i]); }
+	}
+
+	function clearCaches(cm) {
+		clearLineMeasurementCache(cm);
+		cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
+		if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
+		cm.display.lineNumChars = null;
+	}
+
+	function pageScrollX() {
+		// Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
+		// which causes page_Offset and bounding client rects to use
+		// different reference viewports and invalidate our calculations.
+		if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
+		return window.pageXOffset || (document.documentElement || document.body).scrollLeft
+	}
+	function pageScrollY() {
+		if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
+		return window.pageYOffset || (document.documentElement || document.body).scrollTop
+	}
+
+	function widgetTopHeight(lineObj) {
+		var height = 0;
+		if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
+			{ height += widgetHeight(lineObj.widgets[i]); } } }
+		return height
+	}
+
+	// Converts a {top, bottom, left, right} box from line-local
+	// coordinates into another coordinate system. Context may be one of
+	// "line", "div" (display.lineDiv), "local"./null (editor), "window",
+	// or "page".
+	function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
+		if (!includeWidgets) {
+			var height = widgetTopHeight(lineObj);
+			rect.top += height; rect.bottom += height;
+		}
+		if (context == "line") { return rect }
+		if (!context) { context = "local"; }
+		var yOff = heightAtLine(lineObj);
+		if (context == "local") { yOff += paddingTop(cm.display); }
+		else { yOff -= cm.display.viewOffset; }
+		if (context == "page" || context == "window") {
+			var lOff = cm.display.lineSpace.getBoundingClientRect();
+			yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
+			var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
+			rect.left += xOff; rect.right += xOff;
+		}
+		rect.top += yOff; rect.bottom += yOff;
+		return rect
+	}
+
+	// Coverts a box from "div" coords to another coordinate system.
+	// Context may be "window", "page", "div", or "local"./null.
+	function fromCoordSystem(cm, coords, context) {
+		if (context == "div") { return coords }
+		var left = coords.left, top = coords.top;
+		// First move into "page" coordinate system
+		if (context == "page") {
+			left -= pageScrollX();
+			top -= pageScrollY();
+		} else if (context == "local" || !context) {
+			var localBox = cm.display.sizer.getBoundingClientRect();
+			left += localBox.left;
+			top += localBox.top;
+		}
+
+		var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
+		return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
+	}
+
+	function charCoords(cm, pos, context, lineObj, bias) {
+		if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
+		return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
+	}
+
+	// Returns a box for a given cursor position, which may have an
+	// 'other' property containing the position of the secondary cursor
+	// on a bidi boundary.
+	// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
+	// and after `char - 1` in writing order of `char - 1`
+	// A cursor Pos(line, char, "after") is on the same visual line as `char`
+	// and before `char` in writing order of `char`
+	// Examples (upper-case letters are RTL, lower-case are LTR):
+	//     Pos(0, 1, ...)
+	//     before   after
+	// ab     a|b     a|b
+	// aB     a|B     aB|
+	// Ab     |Ab     A|b
+	// AB     B|A     B|A
+	// Every position after the last character on a line is considered to stick
+	// to the last character on the line.
+	function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+		lineObj = lineObj || getLine(cm.doc, pos.line);
+		if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
+		function get(ch, right) {
+			var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
+			if (right) { m.left = m.right; } else { m.right = m.left; }
+			return intoCoordSystem(cm, lineObj, m, context)
+		}
+		var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
+		if (ch >= lineObj.text.length) {
+			ch = lineObj.text.length;
+			sticky = "before";
+		} else if (ch <= 0) {
+			ch = 0;
+			sticky = "after";
+		}
+		if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
+
+		function getBidi(ch, partPos, invert) {
+			var part = order[partPos], right = part.level == 1;
+			return get(invert ? ch - 1 : ch, right != invert)
+		}
+		var partPos = getBidiPartAt(order, ch, sticky);
+		var other = bidiOther;
+		var val = getBidi(ch, partPos, sticky == "before");
+		if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
+		return val
+	}
+
+	// Used to cheaply estimate the coordinates for a position. Used for
+	// intermediate scroll updates.
+	function estimateCoords(cm, pos) {
+		var left = 0;
+		pos = clipPos(cm.doc, pos);
+		if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
+		var lineObj = getLine(cm.doc, pos.line);
+		var top = heightAtLine(lineObj) + paddingTop(cm.display);
+		return {left: left, right: left, top: top, bottom: top + lineObj.height}
+	}
+
+	// Positions returned by coordsChar contain some extra information.
+	// xRel is the relative x position of the input coordinates compared
+	// to the found position (so xRel > 0 means the coordinates are to
+	// the right of the character position, for example). When outside
+	// is true, that means the coordinates lie outside the line's
+	// vertical range.
+	function PosWithInfo(line, ch, sticky, outside, xRel) {
+		var pos = Pos(line, ch, sticky);
+		pos.xRel = xRel;
+		if (outside) { pos.outside = true; }
+		return pos
+	}
+
+	// Compute the character position closest to the given coordinates.
+	// Input must be lineSpace-local ("div" coordinate system).
+	function coordsChar(cm, x, y) {
+		var doc = cm.doc;
+		y += cm.display.viewOffset;
+		if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) }
+		var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
+		if (lineN > last)
+			{ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) }
+		if (x < 0) { x = 0; }
+
+		var lineObj = getLine(doc, lineN);
+		for (;;) {
+			var found = coordsCharInner(cm, lineObj, lineN, x, y);
+			var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 ? 1 : 0));
+			if (!collapsed) { return found }
+			var rangeEnd = collapsed.find(1);
+			if (rangeEnd.line == lineN) { return rangeEnd }
+			lineObj = getLine(doc, lineN = rangeEnd.line);
+		}
+	}
+
+	function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
+		y -= widgetTopHeight(lineObj);
+		var end = lineObj.text.length;
+		var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
+		end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
+		return {begin: begin, end: end}
+	}
+
+	function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
+		if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
+		var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
+		return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
+	}
+
+	// Returns true if the given side of a box is after the given
+	// coordinates, in top-to-bottom, left-to-right order.
+	function boxIsAfter(box, x, y, left) {
+		return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
+	}
+
+	function coordsCharInner(cm, lineObj, lineNo$$1, x, y) {
+		// Move y into line-local coordinate space
+		y -= heightAtLine(lineObj);
+		var preparedMeasure = prepareMeasureForLine(cm, lineObj);
+		// When directly calling `measureCharPrepared`, we have to adjust
+		// for the widgets at this line.
+		var widgetHeight$$1 = widgetTopHeight(lineObj);
+		var begin = 0, end = lineObj.text.length, ltr = true;
+
+		var order = getOrder(lineObj, cm.doc.direction);
+		// If the line isn't plain left-to-right text, first figure out
+		// which bidi section the coordinates fall into.
+		if (order) {
+			var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
+									 (cm, lineObj, lineNo$$1, preparedMeasure, order, x, y);
+			ltr = part.level != 1;
+			// The awkward -1 offsets are needed because findFirst (called
+			// on these below) will treat its first bound as inclusive,
+			// second as exclusive, but we want to actually address the
+			// characters in the part's range
+			begin = ltr ? part.from : part.to - 1;
+			end = ltr ? part.to : part.from - 1;
+		}
+
+		// A binary search to find the first character whose bounding box
+		// starts after the coordinates. If we run across any whose box wrap
+		// the coordinates, store that.
+		var chAround = null, boxAround = null;
+		var ch = findFirst(function (ch) {
+			var box = measureCharPrepared(cm, preparedMeasure, ch);
+			box.top += widgetHeight$$1; box.bottom += widgetHeight$$1;
+			if (!boxIsAfter(box, x, y, false)) { return false }
+			if (box.top <= y && box.left <= x) {
+				chAround = ch;
+				boxAround = box;
+			}
+			return true
+		}, begin, end);
+
+		var baseX, sticky, outside = false;
+		// If a box around the coordinates was found, use that
+		if (boxAround) {
+			// Distinguish coordinates nearer to the left or right side of the box
+			var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
+			ch = chAround + (atStart ? 0 : 1);
+			sticky = atStart ? "after" : "before";
+			baseX = atLeft ? boxAround.left : boxAround.right;
+		} else {
+			// (Adjust for extended bound, if necessary.)
+			if (!ltr && (ch == end || ch == begin)) { ch++; }
+			// To determine which side to associate with, get the box to the
+			// left of the character and compare it's vertical position to the
+			// coordinates
+			sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
+				(measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ?
+				"after" : "before";
+			// Now get accurate coordinates for this place, in order to get a
+			// base X position
+			var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), "line", lineObj, preparedMeasure);
+			baseX = coords.left;
+			outside = y < coords.top || y >= coords.bottom;
+		}
+
+		ch = skipExtendingChars(lineObj.text, ch, 1);
+		return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX)
+	}
+
+	function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) {
+		// Bidi parts are sorted left-to-right, and in a non-line-wrapping
+		// situation, we can take this ordering to correspond to the visual
+		// ordering. This finds the first part whose end is after the given
+		// coordinates.
+		var index = findFirst(function (i) {
+			var part = order[i], ltr = part.level != 1;
+			return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"),
+																		 "line", lineObj, preparedMeasure), x, y, true)
+		}, 0, order.length - 1);
+		var part = order[index];
+		// If this isn't the first part, the part's start is also after
+		// the coordinates, and the coordinates aren't on the same line as
+		// that start, move one part back.
+		if (index > 0) {
+			var ltr = part.level != 1;
+			var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"),
+															 "line", lineObj, preparedMeasure);
+			if (boxIsAfter(start, x, y, true) && start.top > y)
+				{ part = order[index - 1]; }
+		}
+		return part
+	}
+
+	function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
+		// In a wrapped line, rtl text on wrapping boundaries can do things
+		// that don't correspond to the ordering in our `order` array at
+		// all, so a binary search doesn't work, and we want to return a
+		// part that only spans one line so that the binary search in
+		// coordsCharInner is safe. As such, we first find the extent of the
+		// wrapped line, and then do a flat search in which we discard any
+		// spans that aren't on the line.
+		var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
+		var begin = ref.begin;
+		var end = ref.end;
+		if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
+		var part = null, closestDist = null;
+		for (var i = 0; i < order.length; i++) {
+			var p = order[i];
+			if (p.from >= end || p.to <= begin) { continue }
+			var ltr = p.level != 1;
+			var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
+			// Weigh against spans ending before this, so that they are only
+			// picked if nothing ends after
+			var dist = endX < x ? x - endX + 1e9 : endX - x;
+			if (!part || closestDist > dist) {
+				part = p;
+				closestDist = dist;
+			}
+		}
+		if (!part) { part = order[order.length - 1]; }
+		// Clip the part to the wrapped line.
+		if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
+		if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
+		return part
+	}
+
+	var measureText;
+	// Compute the default text height.
+	function textHeight(display) {
+		if (display.cachedTextHeight != null) { return display.cachedTextHeight }
+		if (measureText == null) {
+			measureText = elt("pre");
+			// Measure a bunch of lines, for browsers that compute
+			// fractional heights.
+			for (var i = 0; i < 49; ++i) {
+				measureText.appendChild(document.createTextNode("x"));
+				measureText.appendChild(elt("br"));
+			}
+			measureText.appendChild(document.createTextNode("x"));
+		}
+		removeChildrenAndAdd(display.measure, measureText);
+		var height = measureText.offsetHeight / 50;
+		if (height > 3) { display.cachedTextHeight = height; }
+		removeChildren(display.measure);
+		return height || 1
+	}
+
+	// Compute the default character width.
+	function charWidth(display) {
+		if (display.cachedCharWidth != null) { return display.cachedCharWidth }
+		var anchor = elt("span", "xxxxxxxxxx");
+		var pre = elt("pre", [anchor]);
+		removeChildrenAndAdd(display.measure, pre);
+		var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
+		if (width > 2) { display.cachedCharWidth = width; }
+		return width || 10
+	}
+
+	// Do a bulk-read of the DOM positions and sizes needed to draw the
+	// view, so that we don't interleave reading and writing to the DOM.
+	function getDimensions(cm) {
+		var d = cm.display, left = {}, width = {};
+		var gutterLeft = d.gutters.clientLeft;
+		for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+			var id = cm.display.gutterSpecs[i].className;
+			left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
+			width[id] = n.clientWidth;
+		}
+		return {fixedPos: compensateForHScroll(d),
+						gutterTotalWidth: d.gutters.offsetWidth,
+						gutterLeft: left,
+						gutterWidth: width,
+						wrapperWidth: d.wrapper.clientWidth}
+	}
+
+	// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+	// but using getBoundingClientRect to get a sub-pixel-accurate
+	// result.
+	function compensateForHScroll(display) {
+		return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
+	}
+
+	// Returns a function that estimates the height of a line, to use as
+	// first approximation until the line becomes visible (and is thus
+	// properly measurable).
+	function estimateHeight(cm) {
+		var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
+		var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
+		return function (line) {
+			if (lineIsHidden(cm.doc, line)) { return 0 }
+
+			var widgetsHeight = 0;
+			if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
+				if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
+			} }
+
+			if (wrapping)
+				{ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
+			else
+				{ return widgetsHeight + th }
+		}
+	}
+
+	function estimateLineHeights(cm) {
+		var doc = cm.doc, est = estimateHeight(cm);
+		doc.iter(function (line) {
+			var estHeight = est(line);
+			if (estHeight != line.height) { updateLineHeight(line, estHeight); }
+		});
+	}
+
+	// Given a mouse event, find the corresponding position. If liberal
+	// is false, it checks whether a gutter or scrollbar was clicked,
+	// and returns null if it was. forRect is used by rectangular
+	// selections, and tries to estimate a character position even for
+	// coordinates beyond the right of the text.
+	function posFromMouse(cm, e, liberal, forRect) {
+		var display = cm.display;
+		if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
+
+		var x, y, space = display.lineSpace.getBoundingClientRect();
+		// Fails unpredictably on IE[67] when mouse is dragged around quickly.
+		try { x = e.clientX - space.left; y = e.clientY - space.top; }
+		catch (e) { return null }
+		var coords = coordsChar(cm, x, y), line;
+		if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+			var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
+			coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
+		}
+		return coords
+	}
+
+	// Find the view element corresponding to a given line. Return null
+	// when the line isn't visible.
+	function findViewIndex(cm, n) {
+		if (n >= cm.display.viewTo) { return null }
+		n -= cm.display.viewFrom;
+		if (n < 0) { return null }
+		var view = cm.display.view;
+		for (var i = 0; i < view.length; i++) {
+			n -= view[i].size;
+			if (n < 0) { return i }
+		}
+	}
+
+	// Updates the display.view data structure for a given change to the
+	// document. From and to are in pre-change coordinates. Lendiff is
+	// the amount of lines added or subtracted by the change. This is
+	// used for changes that span multiple lines, or change the way
+	// lines are divided into visual lines. regLineChange (below)
+	// registers single-line changes.
+	function regChange(cm, from, to, lendiff) {
+		if (from == null) { from = cm.doc.first; }
+		if (to == null) { to = cm.doc.first + cm.doc.size; }
+		if (!lendiff) { lendiff = 0; }
+
+		var display = cm.display;
+		if (lendiff && to < display.viewTo &&
+				(display.updateLineNumbers == null || display.updateLineNumbers > from))
+			{ display.updateLineNumbers = from; }
+
+		cm.curOp.viewChanged = true;
+
+		if (from >= display.viewTo) { // Change after
+			if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+				{ resetView(cm); }
+		} else if (to <= display.viewFrom) { // Change before
+			if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+				resetView(cm);
+			} else {
+				display.viewFrom += lendiff;
+				display.viewTo += lendiff;
+			}
+		} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+			resetView(cm);
+		} else if (from <= display.viewFrom) { // Top overlap
+			var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
+			if (cut) {
+				display.view = display.view.slice(cut.index);
+				display.viewFrom = cut.lineN;
+				display.viewTo += lendiff;
+			} else {
+				resetView(cm);
+			}
+		} else if (to >= display.viewTo) { // Bottom overlap
+			var cut$1 = viewCuttingPoint(cm, from, from, -1);
+			if (cut$1) {
+				display.view = display.view.slice(0, cut$1.index);
+				display.viewTo = cut$1.lineN;
+			} else {
+				resetView(cm);
+			}
+		} else { // Gap in the middle
+			var cutTop = viewCuttingPoint(cm, from, from, -1);
+			var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
+			if (cutTop && cutBot) {
+				display.view = display.view.slice(0, cutTop.index)
+					.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+					.concat(display.view.slice(cutBot.index));
+				display.viewTo += lendiff;
+			} else {
+				resetView(cm);
+			}
+		}
+
+		var ext = display.externalMeasured;
+		if (ext) {
+			if (to < ext.lineN)
+				{ ext.lineN += lendiff; }
+			else if (from < ext.lineN + ext.size)
+				{ display.externalMeasured = null; }
+		}
+	}
+
+	// Register a change to a single line. Type must be one of "text",
+	// "gutter", "class", "widget"
+	function regLineChange(cm, line, type) {
+		cm.curOp.viewChanged = true;
+		var display = cm.display, ext = cm.display.externalMeasured;
+		if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+			{ display.externalMeasured = null; }
+
+		if (line < display.viewFrom || line >= display.viewTo) { return }
+		var lineView = display.view[findViewIndex(cm, line)];
+		if (lineView.node == null) { return }
+		var arr = lineView.changes || (lineView.changes = []);
+		if (indexOf(arr, type) == -1) { arr.push(type); }
+	}
+
+	// Clear the view.
+	function resetView(cm) {
+		cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
+		cm.display.view = [];
+		cm.display.viewOffset = 0;
+	}
+
+	function viewCuttingPoint(cm, oldN, newN, dir) {
+		var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
+		if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+			{ return {index: index, lineN: newN} }
+		var n = cm.display.viewFrom;
+		for (var i = 0; i < index; i++)
+			{ n += view[i].size; }
+		if (n != oldN) {
+			if (dir > 0) {
+				if (index == view.length - 1) { return null }
+				diff = (n + view[index].size) - oldN;
+				index++;
+			} else {
+				diff = n - oldN;
+			}
+			oldN += diff; newN += diff;
+		}
+		while (visualLineNo(cm.doc, newN) != newN) {
+			if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
+			newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
+			index += dir;
+		}
+		return {index: index, lineN: newN}
+	}
+
+	// Force the view to cover a given range, adding empty view element
+	// or clipping off existing ones as needed.
+	function adjustView(cm, from, to) {
+		var display = cm.display, view = display.view;
+		if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+			display.view = buildViewArray(cm, from, to);
+			display.viewFrom = from;
+		} else {
+			if (display.viewFrom > from)
+				{ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
+			else if (display.viewFrom < from)
+				{ display.view = display.view.slice(findViewIndex(cm, from)); }
+			display.viewFrom = from;
+			if (display.viewTo < to)
+				{ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
+			else if (display.viewTo > to)
+				{ display.view = display.view.slice(0, findViewIndex(cm, to)); }
+		}
+		display.viewTo = to;
+	}
+
+	// Count the number of lines in the view whose DOM representation is
+	// out of date (or nonexistent).
+	function countDirtyView(cm) {
+		var view = cm.display.view, dirty = 0;
+		for (var i = 0; i < view.length; i++) {
+			var lineView = view[i];
+			if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
+		}
+		return dirty
+	}
+
+	function updateSelection(cm) {
+		cm.display.input.showSelection(cm.display.input.prepareSelection());
+	}
+
+	function prepareSelection(cm, primary) {
+		if ( primary === void 0 ) primary = true;
+
+		var doc = cm.doc, result = {};
+		var curFragment = result.cursors = document.createDocumentFragment();
+		var selFragment = result.selection = document.createDocumentFragment();
+
+		for (var i = 0; i < doc.sel.ranges.length; i++) {
+			if (!primary && i == doc.sel.primIndex) { continue }
+			var range$$1 = doc.sel.ranges[i];
+			if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue }
+			var collapsed = range$$1.empty();
+			if (collapsed || cm.options.showCursorWhenSelecting)
+				{ drawSelectionCursor(cm, range$$1.head, curFragment); }
+			if (!collapsed)
+				{ drawSelectionRange(cm, range$$1, selFragment); }
+		}
+		return result
+	}
+
+	// Draws a cursor for the given range
+	function drawSelectionCursor(cm, head, output) {
+		var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
+
+		var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
+		cursor.style.left = pos.left + "px";
+		cursor.style.top = pos.top + "px";
+		cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
+
+		if (pos.other) {
+			// Secondary cursor, shown when on a 'jump' in bi-directional text
+			var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
+			otherCursor.style.display = "";
+			otherCursor.style.left = pos.other.left + "px";
+			otherCursor.style.top = pos.other.top + "px";
+			otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
+		}
+	}
+
+	function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
+
+	// Draws the given range as a highlighted selection
+	function drawSelectionRange(cm, range$$1, output) {
+		var display = cm.display, doc = cm.doc;
+		var fragment = document.createDocumentFragment();
+		var padding = paddingH(cm.display), leftSide = padding.left;
+		var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
+		var docLTR = doc.direction == "ltr";
+
+		function add(left, top, width, bottom) {
+			if (top < 0) { top = 0; }
+			top = Math.round(top);
+			bottom = Math.round(bottom);
+			fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")));
+		}
+
+		function drawForLine(line, fromArg, toArg) {
+			var lineObj = getLine(doc, line);
+			var lineLen = lineObj.text.length;
+			var start, end;
+			function coords(ch, bias) {
+				return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
+			}
+
+			function wrapX(pos, dir, side) {
+				var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
+				var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
+				var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
+				return coords(ch, prop)[prop]
+			}
+
+			var order = getOrder(lineObj, doc.direction);
+			iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
+				var ltr = dir == "ltr";
+				var fromPos = coords(from, ltr ? "left" : "right");
+				var toPos = coords(to - 1, ltr ? "right" : "left");
+
+				var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
+				var first = i == 0, last = !order || i == order.length - 1;
+				if (toPos.top - fromPos.top <= 3) { // Single line
+					var openLeft = (docLTR ? openStart : openEnd) && first;
+					var openRight = (docLTR ? openEnd : openStart) && last;
+					var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
+					var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
+					add(left, fromPos.top, right - left, fromPos.bottom);
+				} else { // Multiple lines
+					var topLeft, topRight, botLeft, botRight;
+					if (ltr) {
+						topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
+						topRight = docLTR ? rightSide : wrapX(from, dir, "before");
+						botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
+						botRight = docLTR && openEnd && last ? rightSide : toPos.right;
+					} else {
+						topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
+						topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
+						botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
+						botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
+					}
+					add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
+					if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
+					add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
+				}
+
+				if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
+				if (cmpCoords(toPos, start) < 0) { start = toPos; }
+				if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
+				if (cmpCoords(toPos, end) < 0) { end = toPos; }
+			});
+			return {start: start, end: end}
+		}
+
+		var sFrom = range$$1.from(), sTo = range$$1.to();
+		if (sFrom.line == sTo.line) {
+			drawForLine(sFrom.line, sFrom.ch, sTo.ch);
+		} else {
+			var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
+			var singleVLine = visualLine(fromLine) == visualLine(toLine);
+			var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
+			var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
+			if (singleVLine) {
+				if (leftEnd.top < rightStart.top - 2) {
+					add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
+					add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
+				} else {
+					add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
+				}
+			}
+			if (leftEnd.bottom < rightStart.top)
+				{ add(leftSide, leftEnd.bottom, null, rightStart.top); }
+		}
+
+		output.appendChild(fragment);
+	}
+
+	// Cursor-blinking
+	function restartBlink(cm) {
+		if (!cm.state.focused) { return }
+		var display = cm.display;
+		clearInterval(display.blinker);
+		var on = true;
+		display.cursorDiv.style.visibility = "";
+		if (cm.options.cursorBlinkRate > 0)
+			{ display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
+				cm.options.cursorBlinkRate); }
+		else if (cm.options.cursorBlinkRate < 0)
+			{ display.cursorDiv.style.visibility = "hidden"; }
+	}
+
+	function ensureFocus(cm) {
+		if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
+	}
+
+	function delayBlurEvent(cm) {
+		cm.state.delayingBlurEvent = true;
+		setTimeout(function () { if (cm.state.delayingBlurEvent) {
+			cm.state.delayingBlurEvent = false;
+			onBlur(cm);
+		} }, 100);
+	}
+
+	function onFocus(cm, e) {
+		if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }
+
+		if (cm.options.readOnly == "nocursor") { return }
+		if (!cm.state.focused) {
+			signal(cm, "focus", cm, e);
+			cm.state.focused = true;
+			addClass(cm.display.wrapper, "CodeMirror-focused");
+			// This test prevents this from firing when a context
+			// menu is closed (since the input reset would kill the
+			// select-all detection hack)
+			if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+				cm.display.input.reset();
+				if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
+			}
+			cm.display.input.receivedFocus();
+		}
+		restartBlink(cm);
+	}
+	function onBlur(cm, e) {
+		if (cm.state.delayingBlurEvent) { return }
+
+		if (cm.state.focused) {
+			signal(cm, "blur", cm, e);
+			cm.state.focused = false;
+			rmClass(cm.display.wrapper, "CodeMirror-focused");
+		}
+		clearInterval(cm.display.blinker);
+		setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
+	}
+
+	// Read the actual heights of the rendered lines, and update their
+	// stored heights to match.
+	function updateHeightsInViewport(cm) {
+		var display = cm.display;
+		var prevBottom = display.lineDiv.offsetTop;
+		for (var i = 0; i < display.view.length; i++) {
+			var cur = display.view[i], wrapping = cm.options.lineWrapping;
+			var height = (void 0), width = 0;
+			if (cur.hidden) { continue }
+			if (ie && ie_version < 8) {
+				var bot = cur.node.offsetTop + cur.node.offsetHeight;
+				height = bot - prevBottom;
+				prevBottom = bot;
+			} else {
+				var box = cur.node.getBoundingClientRect();
+				height = box.bottom - box.top;
+				// Check that lines don't extend past the right of the current
+				// editor width
+				if (!wrapping && cur.text.firstChild)
+					{ width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
+			}
+			var diff = cur.line.height - height;
+			if (diff > .005 || diff < -.005) {
+				updateLineHeight(cur.line, height);
+				updateWidgetHeight(cur.line);
+				if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
+					{ updateWidgetHeight(cur.rest[j]); } }
+			}
+			if (width > cm.display.sizerWidth) {
+				var chWidth = Math.ceil(width / charWidth(cm.display));
+				if (chWidth > cm.display.maxLineLength) {
+					cm.display.maxLineLength = chWidth;
+					cm.display.maxLine = cur.line;
+					cm.display.maxLineChanged = true;
+				}
+			}
+		}
+	}
+
+	// Read and store the height of line widgets associated with the
+	// given line.
+	function updateWidgetHeight(line) {
+		if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
+			var w = line.widgets[i], parent = w.node.parentNode;
+			if (parent) { w.height = parent.offsetHeight; }
+		} }
+	}
+
+	// Compute the lines that are visible in a given viewport (defaults
+	// the the current scroll position). viewport may contain top,
+	// height, and ensure (see op.scrollToPos) properties.
+	function visibleLines(display, doc, viewport) {
+		var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
+		top = Math.floor(top - paddingTop(display));
+		var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
+
+		var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
+		// Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+		// forces those lines into the viewport (if possible).
+		if (viewport && viewport.ensure) {
+			var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
+			if (ensureFrom < from) {
+				from = ensureFrom;
+				to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
+			} else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+				from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
+				to = ensureTo;
+			}
+		}
+		return {from: from, to: Math.max(to, from + 1)}
+	}
+
+	// SCROLLING THINGS INTO VIEW
+
+	// If an editor sits on the top or bottom of the window, partially
+	// scrolled out of view, this ensures that the cursor is visible.
+	function maybeScrollWindow(cm, rect) {
+		if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
+
+		var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
+		if (rect.top + box.top < 0) { doScroll = true; }
+		else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }
+		if (doScroll != null && !phantom) {
+			var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n                         top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n                         height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n                         left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
+			cm.display.lineSpace.appendChild(scrollNode);
+			scrollNode.scrollIntoView(doScroll);
+			cm.display.lineSpace.removeChild(scrollNode);
+		}
+	}
+
+	// Scroll a given position into view (immediately), verifying that
+	// it actually became visible (as line heights are accurately
+	// measured, the position of something may 'drift' during drawing).
+	function scrollPosIntoView(cm, pos, end, margin) {
+		if (margin == null) { margin = 0; }
+		var rect;
+		if (!cm.options.lineWrapping && pos == end) {
+			// Set pos and end to the cursor positions around the character pos sticks to
+			// If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
+			// If pos == Pos(_, 0, "before"), pos and end are unchanged
+			pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
+			end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
+		}
+		for (var limit = 0; limit < 5; limit++) {
+			var changed = false;
+			var coords = cursorCoords(cm, pos);
+			var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
+			rect = {left: Math.min(coords.left, endCoords.left),
+							top: Math.min(coords.top, endCoords.top) - margin,
+							right: Math.max(coords.left, endCoords.left),
+							bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
+			var scrollPos = calculateScrollPos(cm, rect);
+			var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
+			if (scrollPos.scrollTop != null) {
+				updateScrollTop(cm, scrollPos.scrollTop);
+				if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
+			}
+			if (scrollPos.scrollLeft != null) {
+				setScrollLeft(cm, scrollPos.scrollLeft);
+				if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
+			}
+			if (!changed) { break }
+		}
+		return rect
+	}
+
+	// Scroll a given set of coordinates into view (immediately).
+	function scrollIntoView(cm, rect) {
+		var scrollPos = calculateScrollPos(cm, rect);
+		if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
+		if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
+	}
+
+	// Calculate a new scroll position needed to scroll the given
+	// rectangle into view. Returns an object with scrollTop and
+	// scrollLeft properties. When these are undefined, the
+	// vertical/horizontal position does not need to be adjusted.
+	function calculateScrollPos(cm, rect) {
+		var display = cm.display, snapMargin = textHeight(cm.display);
+		if (rect.top < 0) { rect.top = 0; }
+		var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
+		var screen = displayHeight(cm), result = {};
+		if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
+		var docBottom = cm.doc.height + paddingVert(display);
+		var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
+		if (rect.top < screentop) {
+			result.scrollTop = atTop ? 0 : rect.top;
+		} else if (rect.bottom > screentop + screen) {
+			var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
+			if (newTop != screentop) { result.scrollTop = newTop; }
+		}
+
+		var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
+		var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
+		var tooWide = rect.right - rect.left > screenw;
+		if (tooWide) { rect.right = rect.left + screenw; }
+		if (rect.left < 10)
+			{ result.scrollLeft = 0; }
+		else if (rect.left < screenleft)
+			{ result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }
+		else if (rect.right > screenw + screenleft - 3)
+			{ result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
+		return result
+	}
+
+	// Store a relative adjustment to the scroll position in the current
+	// operation (to be applied when the operation finishes).
+	function addToScrollTop(cm, top) {
+		if (top == null) { return }
+		resolveScrollToPos(cm);
+		cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
+	}
+
+	// Make sure that at the end of the operation the current cursor is
+	// shown.
+	function ensureCursorVisible(cm) {
+		resolveScrollToPos(cm);
+		var cur = cm.getCursor();
+		cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
+	}
+
+	function scrollToCoords(cm, x, y) {
+		if (x != null || y != null) { resolveScrollToPos(cm); }
+		if (x != null) { cm.curOp.scrollLeft = x; }
+		if (y != null) { cm.curOp.scrollTop = y; }
+	}
+
+	function scrollToRange(cm, range$$1) {
+		resolveScrollToPos(cm);
+		cm.curOp.scrollToPos = range$$1;
+	}
+
+	// When an operation has its scrollToPos property set, and another
+	// scroll action is applied before the end of the operation, this
+	// 'simulates' scrolling that position into view in a cheap way, so
+	// that the effect of intermediate scroll commands is not ignored.
+	function resolveScrollToPos(cm) {
+		var range$$1 = cm.curOp.scrollToPos;
+		if (range$$1) {
+			cm.curOp.scrollToPos = null;
+			var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to);
+			scrollToCoordsRange(cm, from, to, range$$1.margin);
+		}
+	}
+
+	function scrollToCoordsRange(cm, from, to, margin) {
+		var sPos = calculateScrollPos(cm, {
+			left: Math.min(from.left, to.left),
+			top: Math.min(from.top, to.top) - margin,
+			right: Math.max(from.right, to.right),
+			bottom: Math.max(from.bottom, to.bottom) + margin
+		});
+		scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
+	}
+
+	// Sync the scrollable area and scrollbars, ensure the viewport
+	// covers the visible area.
+	function updateScrollTop(cm, val) {
+		if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
+		if (!gecko) { updateDisplaySimple(cm, {top: val}); }
+		setScrollTop(cm, val, true);
+		if (gecko) { updateDisplaySimple(cm); }
+		startWorker(cm, 100);
+	}
+
+	function setScrollTop(cm, val, forceScroll) {
+		val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val);
+		if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
+		cm.doc.scrollTop = val;
+		cm.display.scrollbars.setScrollTop(val);
+		if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
+	}
+
+	// Sync scroller and scrollbar, ensure the gutter elements are
+	// aligned.
+	function setScrollLeft(cm, val, isScroller, forceScroll) {
+		val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
+		if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
+		cm.doc.scrollLeft = val;
+		alignHorizontally(cm);
+		if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
+		cm.display.scrollbars.setScrollLeft(val);
+	}
+
+	// SCROLLBARS
+
+	// Prepare DOM reads needed to update the scrollbars. Done in one
+	// shot to minimize update/measure roundtrips.
+	function measureForScrollbars(cm) {
+		var d = cm.display, gutterW = d.gutters.offsetWidth;
+		var docH = Math.round(cm.doc.height + paddingVert(cm.display));
+		return {
+			clientHeight: d.scroller.clientHeight,
+			viewHeight: d.wrapper.clientHeight,
+			scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+			viewWidth: d.wrapper.clientWidth,
+			barLeft: cm.options.fixedGutter ? gutterW : 0,
+			docHeight: docH,
+			scrollHeight: docH + scrollGap(cm) + d.barHeight,
+			nativeBarWidth: d.nativeBarWidth,
+			gutterWidth: gutterW
+		}
+	}
+
+	var NativeScrollbars = function(place, scroll, cm) {
+		this.cm = cm;
+		var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
+		var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
+		vert.tabIndex = horiz.tabIndex = -1;
+		place(vert); place(horiz);
+
+		on(vert, "scroll", function () {
+			if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
+		});
+		on(horiz, "scroll", function () {
+			if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
+		});
+
+		this.checkedZeroWidth = false;
+		// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+		if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
+	};
+
+	NativeScrollbars.prototype.update = function (measure) {
+		var needsH = measure.scrollWidth > measure.clientWidth + 1;
+		var needsV = measure.scrollHeight > measure.clientHeight + 1;
+		var sWidth = measure.nativeBarWidth;
+
+		if (needsV) {
+			this.vert.style.display = "block";
+			this.vert.style.bottom = needsH ? sWidth + "px" : "0";
+			var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
+			// A bug in IE8 can cause this value to be negative, so guard it.
+			this.vert.firstChild.style.height =
+				Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
+		} else {
+			this.vert.style.display = "";
+			this.vert.firstChild.style.height = "0";
+		}
+
+		if (needsH) {
+			this.horiz.style.display = "block";
+			this.horiz.style.right = needsV ? sWidth + "px" : "0";
+			this.horiz.style.left = measure.barLeft + "px";
+			var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
+			this.horiz.firstChild.style.width =
+				Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
+		} else {
+			this.horiz.style.display = "";
+			this.horiz.firstChild.style.width = "0";
+		}
+
+		if (!this.checkedZeroWidth && measure.clientHeight > 0) {
+			if (sWidth == 0) { this.zeroWidthHack(); }
+			this.checkedZeroWidth = true;
+		}
+
+		return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
+	};
+
+	NativeScrollbars.prototype.setScrollLeft = function (pos) {
+		if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
+		if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
+	};
+
+	NativeScrollbars.prototype.setScrollTop = function (pos) {
+		if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
+		if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
+	};
+
+	NativeScrollbars.prototype.zeroWidthHack = function () {
+		var w = mac && !mac_geMountainLion ? "12px" : "18px";
+		this.horiz.style.height = this.vert.style.width = w;
+		this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
+		this.disableHoriz = new Delayed;
+		this.disableVert = new Delayed;
+	};
+
+	NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
+		bar.style.pointerEvents = "auto";
+		function maybeDisable() {
+			// To find out whether the scrollbar is still visible, we
+			// check whether the element under the pixel in the bottom
+			// right corner of the scrollbar box is the scrollbar box
+			// itself (when the bar is still visible) or its filler child
+			// (when the bar is hidden). If it is still visible, we keep
+			// it enabled, if it's hidden, we disable pointer events.
+			var box = bar.getBoundingClientRect();
+			var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
+					: document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
+			if (elt$$1 != bar) { bar.style.pointerEvents = "none"; }
+			else { delay.set(1000, maybeDisable); }
+		}
+		delay.set(1000, maybeDisable);
+	};
+
+	NativeScrollbars.prototype.clear = function () {
+		var parent = this.horiz.parentNode;
+		parent.removeChild(this.horiz);
+		parent.removeChild(this.vert);
+	};
+
+	var NullScrollbars = function () {};
+
+	NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
+	NullScrollbars.prototype.setScrollLeft = function () {};
+	NullScrollbars.prototype.setScrollTop = function () {};
+	NullScrollbars.prototype.clear = function () {};
+
+	function updateScrollbars(cm, measure) {
+		if (!measure) { measure = measureForScrollbars(cm); }
+		var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
+		updateScrollbarsInner(cm, measure);
+		for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+			if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+				{ updateHeightsInViewport(cm); }
+			updateScrollbarsInner(cm, measureForScrollbars(cm));
+			startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
+		}
+	}
+
+	// Re-synchronize the fake scrollbars with the actual size of the
+	// content.
+	function updateScrollbarsInner(cm, measure) {
+		var d = cm.display;
+		var sizes = d.scrollbars.update(measure);
+
+		d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
+		d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
+		d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";
+
+		if (sizes.right && sizes.bottom) {
+			d.scrollbarFiller.style.display = "block";
+			d.scrollbarFiller.style.height = sizes.bottom + "px";
+			d.scrollbarFiller.style.width = sizes.right + "px";
+		} else { d.scrollbarFiller.style.display = ""; }
+		if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+			d.gutterFiller.style.display = "block";
+			d.gutterFiller.style.height = sizes.bottom + "px";
+			d.gutterFiller.style.width = measure.gutterWidth + "px";
+		} else { d.gutterFiller.style.display = ""; }
+	}
+
+	var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
+
+	function initScrollbars(cm) {
+		if (cm.display.scrollbars) {
+			cm.display.scrollbars.clear();
+			if (cm.display.scrollbars.addClass)
+				{ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
+		}
+
+		cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
+			cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
+			// Prevent clicks in the scrollbars from killing focus
+			on(node, "mousedown", function () {
+				if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
+			});
+			node.setAttribute("cm-not-content", "true");
+		}, function (pos, axis) {
+			if (axis == "horizontal") { setScrollLeft(cm, pos); }
+			else { updateScrollTop(cm, pos); }
+		}, cm);
+		if (cm.display.scrollbars.addClass)
+			{ addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
+	}
+
+	// Operations are used to wrap a series of changes to the editor
+	// state in such a way that each change won't have to update the
+	// cursor and display (which would be awkward, slow, and
+	// error-prone). Instead, display updates are batched and then all
+	// combined and executed at once.
+
+	var nextOpId = 0;
+	// Start a new operation.
+	function startOperation(cm) {
+		cm.curOp = {
+			cm: cm,
+			viewChanged: false,      // Flag that indicates that lines might need to be redrawn
+			startHeight: cm.doc.height, // Used to detect need to update scrollbar
+			forceUpdate: false,      // Used to force a redraw
+			updateInput: 0,       // Whether to reset the input textarea
+			typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
+			changeObjs: null,        // Accumulated changes, for firing change events
+			cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+			cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+			selectionChanged: false, // Whether the selection needs to be redrawn
+			updateMaxLine: false,    // Set when the widest line needs to be determined anew
+			scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+			scrollToPos: null,       // Used to scroll to a specific position
+			focus: false,
+			id: ++nextOpId           // Unique ID
+		};
+		pushOperation(cm.curOp);
+	}
+
+	// Finish an operation, updating the display and signalling delayed events
+	function endOperation(cm) {
+		var op = cm.curOp;
+		if (op) { finishOperation(op, function (group) {
+			for (var i = 0; i < group.ops.length; i++)
+				{ group.ops[i].cm.curOp = null; }
+			endOperations(group);
+		}); }
+	}
+
+	// The DOM updates done when an operation finishes are batched so
+	// that the minimum number of relayouts are required.
+	function endOperations(group) {
+		var ops = group.ops;
+		for (var i = 0; i < ops.length; i++) // Read DOM
+			{ endOperation_R1(ops[i]); }
+		for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
+			{ endOperation_W1(ops[i$1]); }
+		for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
+			{ endOperation_R2(ops[i$2]); }
+		for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
+			{ endOperation_W2(ops[i$3]); }
+		for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
+			{ endOperation_finish(ops[i$4]); }
+	}
+
+	function endOperation_R1(op) {
+		var cm = op.cm, display = cm.display;
+		maybeClipScrollbars(cm);
+		if (op.updateMaxLine) { findMaxLine(cm); }
+
+		op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+			op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+												 op.scrollToPos.to.line >= display.viewTo) ||
+			display.maxLineChanged && cm.options.lineWrapping;
+		op.update = op.mustUpdate &&
+			new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
+	}
+
+	function endOperation_W1(op) {
+		op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
+	}
+
+	function endOperation_R2(op) {
+		var cm = op.cm, display = cm.display;
+		if (op.updatedDisplay) { updateHeightsInViewport(cm); }
+
+		op.barMeasure = measureForScrollbars(cm);
+
+		// If the max line changed since it was last measured, measure it,
+		// and ensure the document's width matches it.
+		// updateDisplay_W2 will use these properties to do the actual resizing
+		if (display.maxLineChanged && !cm.options.lineWrapping) {
+			op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
+			cm.display.sizerWidth = op.adjustWidthTo;
+			op.barMeasure.scrollWidth =
+				Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
+			op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
+		}
+
+		if (op.updatedDisplay || op.selectionChanged)
+			{ op.preparedSelection = display.input.prepareSelection(); }
+	}
+
+	function endOperation_W2(op) {
+		var cm = op.cm;
+
+		if (op.adjustWidthTo != null) {
+			cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
+			if (op.maxScrollLeft < cm.doc.scrollLeft)
+				{ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
+			cm.display.maxLineChanged = false;
+		}
+
+		var takeFocus = op.focus && op.focus == activeElt();
+		if (op.preparedSelection)
+			{ cm.display.input.showSelection(op.preparedSelection, takeFocus); }
+		if (op.updatedDisplay || op.startHeight != cm.doc.height)
+			{ updateScrollbars(cm, op.barMeasure); }
+		if (op.updatedDisplay)
+			{ setDocumentHeight(cm, op.barMeasure); }
+
+		if (op.selectionChanged) { restartBlink(cm); }
+
+		if (cm.state.focused && op.updateInput)
+			{ cm.display.input.reset(op.typing); }
+		if (takeFocus) { ensureFocus(op.cm); }
+	}
+
+	function endOperation_finish(op) {
+		var cm = op.cm, display = cm.display, doc = cm.doc;
+
+		if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }
+
+		// Abort mouse wheel delta measurement, when scrolling explicitly
+		if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+			{ display.wheelStartX = display.wheelStartY = null; }
+
+		// Propagate the scroll position to the actual DOM scroller
+		if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }
+
+		if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
+		// If we need to scroll a specific position into view, do so.
+		if (op.scrollToPos) {
+			var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+																	 clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
+			maybeScrollWindow(cm, rect);
+		}
+
+		// Fire events for markers that are hidden/unidden by editing or
+		// undoing
+		var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
+		if (hidden) { for (var i = 0; i < hidden.length; ++i)
+			{ if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
+		if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
+			{ if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }
+
+		if (display.wrapper.offsetHeight)
+			{ doc.scrollTop = cm.display.scroller.scrollTop; }
+
+		// Fire change events, and delayed event handlers
+		if (op.changeObjs)
+			{ signal(cm, "changes", cm, op.changeObjs); }
+		if (op.update)
+			{ op.update.finish(); }
+	}
+
+	// Run the given function in an operation
+	function runInOp(cm, f) {
+		if (cm.curOp) { return f() }
+		startOperation(cm);
+		try { return f() }
+		finally { endOperation(cm); }
+	}
+	// Wraps a function in an operation. Returns the wrapped function.
+	function operation(cm, f) {
+		return function() {
+			if (cm.curOp) { return f.apply(cm, arguments) }
+			startOperation(cm);
+			try { return f.apply(cm, arguments) }
+			finally { endOperation(cm); }
+		}
+	}
+	// Used to add methods to editor and doc instances, wrapping them in
+	// operations.
+	function methodOp(f) {
+		return function() {
+			if (this.curOp) { return f.apply(this, arguments) }
+			startOperation(this);
+			try { return f.apply(this, arguments) }
+			finally { endOperation(this); }
+		}
+	}
+	function docMethodOp(f) {
+		return function() {
+			var cm = this.cm;
+			if (!cm || cm.curOp) { return f.apply(this, arguments) }
+			startOperation(cm);
+			try { return f.apply(this, arguments) }
+			finally { endOperation(cm); }
+		}
+	}
+
+	// HIGHLIGHT WORKER
+
+	function startWorker(cm, time) {
+		if (cm.doc.highlightFrontier < cm.display.viewTo)
+			{ cm.state.highlight.set(time, bind(highlightWorker, cm)); }
+	}
+
+	function highlightWorker(cm) {
+		var doc = cm.doc;
+		if (doc.highlightFrontier >= cm.display.viewTo) { return }
+		var end = +new Date + cm.options.workTime;
+		var context = getContextBefore(cm, doc.highlightFrontier);
+		var changedLines = [];
+
+		doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
+			if (context.line >= cm.display.viewFrom) { // Visible
+				var oldStyles = line.styles;
+				var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
+				var highlighted = highlightLine(cm, line, context, true);
+				if (resetState) { context.state = resetState; }
+				line.styles = highlighted.styles;
+				var oldCls = line.styleClasses, newCls = highlighted.classes;
+				if (newCls) { line.styleClasses = newCls; }
+				else if (oldCls) { line.styleClasses = null; }
+				var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+					oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
+				for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
+				if (ischange) { changedLines.push(context.line); }
+				line.stateAfter = context.save();
+				context.nextLine();
+			} else {
+				if (line.text.length <= cm.options.maxHighlightLength)
+					{ processLine(cm, line.text, context); }
+				line.stateAfter = context.line % 5 == 0 ? context.save() : null;
+				context.nextLine();
+			}
+			if (+new Date > end) {
+				startWorker(cm, cm.options.workDelay);
+				return true
+			}
+		});
+		doc.highlightFrontier = context.line;
+		doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
+		if (changedLines.length) { runInOp(cm, function () {
+			for (var i = 0; i < changedLines.length; i++)
+				{ regLineChange(cm, changedLines[i], "text"); }
+		}); }
+	}
+
+	// DISPLAY DRAWING
+
+	var DisplayUpdate = function(cm, viewport, force) {
+		var display = cm.display;
+
+		this.viewport = viewport;
+		// Store some values that we'll need later (but don't want to force a relayout for)
+		this.visible = visibleLines(display, cm.doc, viewport);
+		this.editorIsHidden = !display.wrapper.offsetWidth;
+		this.wrapperHeight = display.wrapper.clientHeight;
+		this.wrapperWidth = display.wrapper.clientWidth;
+		this.oldDisplayWidth = displayWidth(cm);
+		this.force = force;
+		this.dims = getDimensions(cm);
+		this.events = [];
+	};
+
+	DisplayUpdate.prototype.signal = function (emitter, type) {
+		if (hasHandler(emitter, type))
+			{ this.events.push(arguments); }
+	};
+	DisplayUpdate.prototype.finish = function () {
+			var this$1 = this;
+
+		for (var i = 0; i < this.events.length; i++)
+			{ signal.apply(null, this$1.events[i]); }
+	};
+
+	function maybeClipScrollbars(cm) {
+		var display = cm.display;
+		if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+			display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
+			display.heightForcer.style.height = scrollGap(cm) + "px";
+			display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
+			display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
+			display.scrollbarsClipped = true;
+		}
+	}
+
+	function selectionSnapshot(cm) {
+		if (cm.hasFocus()) { return null }
+		var active = activeElt();
+		if (!active || !contains(cm.display.lineDiv, active)) { return null }
+		var result = {activeElt: active};
+		if (window.getSelection) {
+			var sel = window.getSelection();
+			if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
+				result.anchorNode = sel.anchorNode;
+				result.anchorOffset = sel.anchorOffset;
+				result.focusNode = sel.focusNode;
+				result.focusOffset = sel.focusOffset;
+			}
+		}
+		return result
+	}
+
+	function restoreSelection(snapshot) {
+		if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
+		snapshot.activeElt.focus();
+		if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
+			var sel = window.getSelection(), range$$1 = document.createRange();
+			range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
+			range$$1.collapse(false);
+			sel.removeAllRanges();
+			sel.addRange(range$$1);
+			sel.extend(snapshot.focusNode, snapshot.focusOffset);
+		}
+	}
+
+	// Does the actual updating of the line display. Bails out
+	// (returning false) when there is nothing to be done and forced is
+	// false.
+	function updateDisplayIfNeeded(cm, update) {
+		var display = cm.display, doc = cm.doc;
+
+		if (update.editorIsHidden) {
+			resetView(cm);
+			return false
+		}
+
+		// Bail out if the visible area is already rendered and nothing changed.
+		if (!update.force &&
+				update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+				(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+				display.renderedView == display.view && countDirtyView(cm) == 0)
+			{ return false }
+
+		if (maybeUpdateLineNumberWidth(cm)) {
+			resetView(cm);
+			update.dims = getDimensions(cm);
+		}
+
+		// Compute a suitable new viewport (from & to)
+		var end = doc.first + doc.size;
+		var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
+		var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
+		if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
+		if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
+		if (sawCollapsedSpans) {
+			from = visualLineNo(cm.doc, from);
+			to = visualLineEndNo(cm.doc, to);
+		}
+
+		var different = from != display.viewFrom || to != display.viewTo ||
+			display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
+		adjustView(cm, from, to);
+
+		display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
+		// Position the mover div to align with the current scroll position
+		cm.display.mover.style.top = display.viewOffset + "px";
+
+		var toUpdate = countDirtyView(cm);
+		if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+				(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+			{ return false }
+
+		// For big changes, we hide the enclosing element during the
+		// update, since that speeds up the operations on most browsers.
+		var selSnapshot = selectionSnapshot(cm);
+		if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
+		patchDisplay(cm, display.updateLineNumbers, update.dims);
+		if (toUpdate > 4) { display.lineDiv.style.display = ""; }
+		display.renderedView = display.view;
+		// There might have been a widget with a focused element that got
+		// hidden or updated, if so re-focus it.
+		restoreSelection(selSnapshot);
+
+		// Prevent selection and cursors from interfering with the scroll
+		// width and height.
+		removeChildren(display.cursorDiv);
+		removeChildren(display.selectionDiv);
+		display.gutters.style.height = display.sizer.style.minHeight = 0;
+
+		if (different) {
+			display.lastWrapHeight = update.wrapperHeight;
+			display.lastWrapWidth = update.wrapperWidth;
+			startWorker(cm, 400);
+		}
+
+		display.updateLineNumbers = null;
+
+		return true
+	}
+
+	function postUpdateDisplay(cm, update) {
+		var viewport = update.viewport;
+
+		for (var first = true;; first = false) {
+			if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+				// Clip forced viewport to actual scrollable area.
+				if (viewport && viewport.top != null)
+					{ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
+				// Updated line heights might result in the drawn area not
+				// actually covering the viewport. Keep looping until it does.
+				update.visible = visibleLines(cm.display, cm.doc, viewport);
+				if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+					{ break }
+			}
+			if (!updateDisplayIfNeeded(cm, update)) { break }
+			updateHeightsInViewport(cm);
+			var barMeasure = measureForScrollbars(cm);
+			updateSelection(cm);
+			updateScrollbars(cm, barMeasure);
+			setDocumentHeight(cm, barMeasure);
+			update.force = false;
+		}
+
+		update.signal(cm, "update", cm);
+		if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+			update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
+			cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
+		}
+	}
+
+	function updateDisplaySimple(cm, viewport) {
+		var update = new DisplayUpdate(cm, viewport);
+		if (updateDisplayIfNeeded(cm, update)) {
+			updateHeightsInViewport(cm);
+			postUpdateDisplay(cm, update);
+			var barMeasure = measureForScrollbars(cm);
+			updateSelection(cm);
+			updateScrollbars(cm, barMeasure);
+			setDocumentHeight(cm, barMeasure);
+			update.finish();
+		}
+	}
+
+	// Sync the actual display DOM structure with display.view, removing
+	// nodes for lines that are no longer in view, and creating the ones
+	// that are not there yet, and updating the ones that are out of
+	// date.
+	function patchDisplay(cm, updateNumbersFrom, dims) {
+		var display = cm.display, lineNumbers = cm.options.lineNumbers;
+		var container = display.lineDiv, cur = container.firstChild;
+
+		function rm(node) {
+			var next = node.nextSibling;
+			// Works around a throw-scroll bug in OS X Webkit
+			if (webkit && mac && cm.display.currentWheelTarget == node)
+				{ node.style.display = "none"; }
+			else
+				{ node.parentNode.removeChild(node); }
+			return next
+		}
+
+		var view = display.view, lineN = display.viewFrom;
+		// Loop over the elements in the view, syncing cur (the DOM nodes
+		// in display.lineDiv) with the view as we go.
+		for (var i = 0; i < view.length; i++) {
+			var lineView = view[i];
+			if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+				var node = buildLineElement(cm, lineView, lineN, dims);
+				container.insertBefore(node, cur);
+			} else { // Already drawn
+				while (cur != lineView.node) { cur = rm(cur); }
+				var updateNumber = lineNumbers && updateNumbersFrom != null &&
+					updateNumbersFrom <= lineN && lineView.lineNumber;
+				if (lineView.changes) {
+					if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
+					updateLineForChanges(cm, lineView, lineN, dims);
+				}
+				if (updateNumber) {
+					removeChildren(lineView.lineNumber);
+					lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
+				}
+				cur = lineView.node.nextSibling;
+			}
+			lineN += lineView.size;
+		}
+		while (cur) { cur = rm(cur); }
+	}
+
+	function updateGutterSpace(display) {
+		var width = display.gutters.offsetWidth;
+		display.sizer.style.marginLeft = width + "px";
+	}
+
+	function setDocumentHeight(cm, measure) {
+		cm.display.sizer.style.minHeight = measure.docHeight + "px";
+		cm.display.heightForcer.style.top = measure.docHeight + "px";
+		cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
+	}
+
+	// Re-align line numbers and gutter marks to compensate for
+	// horizontal scrolling.
+	function alignHorizontally(cm) {
+		var display = cm.display, view = display.view;
+		if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
+		var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
+		var gutterW = display.gutters.offsetWidth, left = comp + "px";
+		for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
+			if (cm.options.fixedGutter) {
+				if (view[i].gutter)
+					{ view[i].gutter.style.left = left; }
+				if (view[i].gutterBackground)
+					{ view[i].gutterBackground.style.left = left; }
+			}
+			var align = view[i].alignable;
+			if (align) { for (var j = 0; j < align.length; j++)
+				{ align[j].style.left = left; } }
+		} }
+		if (cm.options.fixedGutter)
+			{ display.gutters.style.left = (comp + gutterW) + "px"; }
+	}
+
+	// Used to ensure that the line number gutter is still the right
+	// size for the current document size. Returns true when an update
+	// is needed.
+	function maybeUpdateLineNumberWidth(cm) {
+		if (!cm.options.lineNumbers) { return false }
+		var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
+		if (last.length != display.lineNumChars) {
+			var test = display.measure.appendChild(elt("div", [elt("div", last)],
+																								 "CodeMirror-linenumber CodeMirror-gutter-elt"));
+			var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
+			display.lineGutter.style.width = "";
+			display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
+			display.lineNumWidth = display.lineNumInnerWidth + padding;
+			display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
+			display.lineGutter.style.width = display.lineNumWidth + "px";
+			updateGutterSpace(cm.display);
+			return true
+		}
+		return false
+	}
+
+	function getGutters(gutters, lineNumbers) {
+		var result = [], sawLineNumbers = false;
+		for (var i = 0; i < gutters.length; i++) {
+			var name = gutters[i], style = null;
+			if (typeof name != "string") { style = name.style; name = name.className; }
+			if (name == "CodeMirror-linenumbers") {
+				if (!lineNumbers) { continue }
+				else { sawLineNumbers = true; }
+			}
+			result.push({className: name, style: style});
+		}
+		if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); }
+		return result
+	}
+
+	// Rebuild the gutter elements, ensure the margin to the left of the
+	// code matches their width.
+	function renderGutters(display) {
+		var gutters = display.gutters, specs = display.gutterSpecs;
+		removeChildren(gutters);
+		display.lineGutter = null;
+		for (var i = 0; i < specs.length; ++i) {
+			var ref = specs[i];
+			var className = ref.className;
+			var style = ref.style;
+			var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
+			if (style) { gElt.style.cssText = style; }
+			if (className == "CodeMirror-linenumbers") {
+				display.lineGutter = gElt;
+				gElt.style.width = (display.lineNumWidth || 1) + "px";
+			}
+		}
+		gutters.style.display = specs.length ? "" : "none";
+		updateGutterSpace(display);
+	}
+
+	function updateGutters(cm) {
+		renderGutters(cm.display);
+		regChange(cm);
+		alignHorizontally(cm);
+	}
+
+	// The display handles the DOM integration, both for input reading
+	// and content drawing. It holds references to DOM nodes and
+	// display-related state.
+
+	function Display(place, doc, input, options) {
+		var d = this;
+		this.input = input;
+
+		// Covers bottom-right square when both scrollbars are present.
+		d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
+		d.scrollbarFiller.setAttribute("cm-not-content", "true");
+		// Covers bottom of gutter when coverGutterNextToScrollbar is on
+		// and h scrollbar is present.
+		d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
+		d.gutterFiller.setAttribute("cm-not-content", "true");
+		// Will contain the actual code, positioned to cover the viewport.
+		d.lineDiv = eltP("div", null, "CodeMirror-code");
+		// Elements are added to these to represent selection and cursors.
+		d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
+		d.cursorDiv = elt("div", null, "CodeMirror-cursors");
+		// A visibility: hidden element used to find the size of things.
+		d.measure = elt("div", null, "CodeMirror-measure");
+		// When lines outside of the viewport are measured, they are drawn in this.
+		d.lineMeasure = elt("div", null, "CodeMirror-measure");
+		// Wraps everything that needs to exist inside the vertically-padded coordinate system
+		d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+											null, "position: relative; outline: none");
+		var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
+		// Moved around its parent to cover visible view.
+		d.mover = elt("div", [lines], null, "position: relative");
+		// Set to the height of the document, allowing scrolling.
+		d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
+		d.sizerWidth = null;
+		// Behavior of elts with overflow: auto and padding is
+		// inconsistent across browsers. This is used to ensure the
+		// scrollable area is big enough.
+		d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
+		// Will contain the gutters, if any.
+		d.gutters = elt("div", null, "CodeMirror-gutters");
+		d.lineGutter = null;
+		// Actual scrollable element.
+		d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
+		d.scroller.setAttribute("tabIndex", "-1");
+		// The element in which the editor lives.
+		d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
+
+		// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+		if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
+		if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }
+
+		if (place) {
+			if (place.appendChild) { place.appendChild(d.wrapper); }
+			else { place(d.wrapper); }
+		}
+
+		// Current rendered range (may be bigger than the view window).
+		d.viewFrom = d.viewTo = doc.first;
+		d.reportedViewFrom = d.reportedViewTo = doc.first;
+		// Information about the rendered lines.
+		d.view = [];
+		d.renderedView = null;
+		// Holds info about a single rendered line when it was rendered
+		// for measurement, while not in view.
+		d.externalMeasured = null;
+		// Empty space (in pixels) above the view
+		d.viewOffset = 0;
+		d.lastWrapHeight = d.lastWrapWidth = 0;
+		d.updateLineNumbers = null;
+
+		d.nativeBarWidth = d.barHeight = d.barWidth = 0;
+		d.scrollbarsClipped = false;
+
+		// Used to only resize the line number gutter when necessary (when
+		// the amount of lines crosses a boundary that makes its width change)
+		d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
+		// Set to true when a non-horizontal-scrolling line widget is
+		// added. As an optimization, line widget aligning is skipped when
+		// this is false.
+		d.alignWidgets = false;
+
+		d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+
+		// Tracks the maximum line length so that the horizontal scrollbar
+		// can be kept static when scrolling.
+		d.maxLine = null;
+		d.maxLineLength = 0;
+		d.maxLineChanged = false;
+
+		// Used for measuring wheel scrolling granularity
+		d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
+
+		// True when shift is held down.
+		d.shift = false;
+
+		// Used to track whether anything happened since the context menu
+		// was opened.
+		d.selForContextMenu = null;
+
+		d.activeTouch = null;
+
+		d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
+		renderGutters(d);
+
+		input.init(d);
+	}
+
+	// Since the delta values reported on mouse wheel events are
+	// unstandardized between browsers and even browser versions, and
+	// generally horribly unpredictable, this code starts by measuring
+	// the scroll effect that the first few mouse wheel events have,
+	// and, from that, detects the way it can convert deltas to pixel
+	// offsets afterwards.
+	//
+	// The reason we want to know the amount a wheel event will scroll
+	// is that it gives us a chance to update the display before the
+	// actual scrolling happens, reducing flickering.
+
+	var wheelSamples = 0, wheelPixelsPerUnit = null;
+	// Fill in a browser-detected starting value on browsers where we
+	// know one. These don't have to be accurate -- the result of them
+	// being wrong would just be a slight flicker on the first wheel
+	// scroll (if it is large enough).
+	if (ie) { wheelPixelsPerUnit = -.53; }
+	else if (gecko) { wheelPixelsPerUnit = 15; }
+	else if (chrome) { wheelPixelsPerUnit = -.7; }
+	else if (safari) { wheelPixelsPerUnit = -1/3; }
+
+	function wheelEventDelta(e) {
+		var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
+		if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
+		if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
+		else if (dy == null) { dy = e.wheelDelta; }
+		return {x: dx, y: dy}
+	}
+	function wheelEventPixels(e) {
+		var delta = wheelEventDelta(e);
+		delta.x *= wheelPixelsPerUnit;
+		delta.y *= wheelPixelsPerUnit;
+		return delta
+	}
+
+	function onScrollWheel(cm, e) {
+		var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
+
+		var display = cm.display, scroll = display.scroller;
+		// Quit if there's nothing to scroll here
+		var canScrollX = scroll.scrollWidth > scroll.clientWidth;
+		var canScrollY = scroll.scrollHeight > scroll.clientHeight;
+		if (!(dx && canScrollX || dy && canScrollY)) { return }
+
+		// Webkit browsers on OS X abort momentum scrolls when the target
+		// of the scroll event is removed from the scrollable element.
+		// This hack (see related code in patchDisplay) makes sure the
+		// element is kept around.
+		if (dy && mac && webkit) {
+			outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+				for (var i = 0; i < view.length; i++) {
+					if (view[i].node == cur) {
+						cm.display.currentWheelTarget = cur;
+						break outer
+					}
+				}
+			}
+		}
+
+		// On some browsers, horizontal scrolling will cause redraws to
+		// happen before the gutter has been realigned, causing it to
+		// wriggle around in a most unseemly way. When we have an
+		// estimated pixels/delta value, we just handle horizontal
+		// scrolling entirely here. It'll be slightly off from native, but
+		// better than glitching out.
+		if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+			if (dy && canScrollY)
+				{ updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }
+			setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));
+			// Only prevent default scrolling if vertical scrolling is
+			// actually possible. Otherwise, it causes vertical scroll
+			// jitter on OSX trackpads when deltaX is small and deltaY
+			// is large (issue #3579)
+			if (!dy || (dy && canScrollY))
+				{ e_preventDefault(e); }
+			display.wheelStartX = null; // Abort measurement, if in progress
+			return
+		}
+
+		// 'Project' the visible viewport to cover the area that is being
+		// scrolled into view (if we know enough to estimate it).
+		if (dy && wheelPixelsPerUnit != null) {
+			var pixels = dy * wheelPixelsPerUnit;
+			var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
+			if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
+			else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
+			updateDisplaySimple(cm, {top: top, bottom: bot});
+		}
+
+		if (wheelSamples < 20) {
+			if (display.wheelStartX == null) {
+				display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
+				display.wheelDX = dx; display.wheelDY = dy;
+				setTimeout(function () {
+					if (display.wheelStartX == null) { return }
+					var movedX = scroll.scrollLeft - display.wheelStartX;
+					var movedY = scroll.scrollTop - display.wheelStartY;
+					var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+						(movedX && display.wheelDX && movedX / display.wheelDX);
+					display.wheelStartX = display.wheelStartY = null;
+					if (!sample) { return }
+					wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
+					++wheelSamples;
+				}, 200);
+			} else {
+				display.wheelDX += dx; display.wheelDY += dy;
+			}
+		}
+	}
+
+	// Selection objects are immutable. A new one is created every time
+	// the selection changes. A selection is one or more non-overlapping
+	// (and non-touching) ranges, sorted, and an integer that indicates
+	// which one is the primary selection (the one that's scrolled into
+	// view, that getCursor returns, etc).
+	var Selection = function(ranges, primIndex) {
+		this.ranges = ranges;
+		this.primIndex = primIndex;
+	};
+
+	Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
+
+	Selection.prototype.equals = function (other) {
+			var this$1 = this;
+
+		if (other == this) { return true }
+		if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
+		for (var i = 0; i < this.ranges.length; i++) {
+			var here = this$1.ranges[i], there = other.ranges[i];
+			if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
+		}
+		return true
+	};
+
+	Selection.prototype.deepCopy = function () {
+			var this$1 = this;
+
+		var out = [];
+		for (var i = 0; i < this.ranges.length; i++)
+			{ out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); }
+		return new Selection(out, this.primIndex)
+	};
+
+	Selection.prototype.somethingSelected = function () {
+			var this$1 = this;
+
+		for (var i = 0; i < this.ranges.length; i++)
+			{ if (!this$1.ranges[i].empty()) { return true } }
+		return false
+	};
+
+	Selection.prototype.contains = function (pos, end) {
+			var this$1 = this;
+
+		if (!end) { end = pos; }
+		for (var i = 0; i < this.ranges.length; i++) {
+			var range = this$1.ranges[i];
+			if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+				{ return i }
+		}
+		return -1
+	};
+
+	var Range = function(anchor, head) {
+		this.anchor = anchor; this.head = head;
+	};
+
+	Range.prototype.from = function () { return minPos(this.anchor, this.head) };
+	Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
+	Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
+
+	// Take an unsorted, potentially overlapping set of ranges, and
+	// build a selection out of it. 'Consumes' ranges array (modifying
+	// it).
+	function normalizeSelection(cm, ranges, primIndex) {
+		var mayTouch = cm && cm.options.selectionsMayTouch;
+		var prim = ranges[primIndex];
+		ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
+		primIndex = indexOf(ranges, prim);
+		for (var i = 1; i < ranges.length; i++) {
+			var cur = ranges[i], prev = ranges[i - 1];
+			var diff = cmp(prev.to(), cur.from());
+			if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
+				var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
+				var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
+				if (i <= primIndex) { --primIndex; }
+				ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
+			}
+		}
+		return new Selection(ranges, primIndex)
+	}
+
+	function simpleSelection(anchor, head) {
+		return new Selection([new Range(anchor, head || anchor)], 0)
+	}
+
+	// Compute the position of the end of a change (its 'to' property
+	// refers to the pre-change end).
+	function changeEnd(change) {
+		if (!change.text) { return change.to }
+		return Pos(change.from.line + change.text.length - 1,
+							 lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
+	}
+
+	// Adjust a position to refer to the post-change position of the
+	// same text, or the end of the change if the change covers it.
+	function adjustForChange(pos, change) {
+		if (cmp(pos, change.from) < 0) { return pos }
+		if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
+
+		var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
+		if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
+		return Pos(line, ch)
+	}
+
+	function computeSelAfterChange(doc, change) {
+		var out = [];
+		for (var i = 0; i < doc.sel.ranges.length; i++) {
+			var range = doc.sel.ranges[i];
+			out.push(new Range(adjustForChange(range.anchor, change),
+												 adjustForChange(range.head, change)));
+		}
+		return normalizeSelection(doc.cm, out, doc.sel.primIndex)
+	}
+
+	function offsetPos(pos, old, nw) {
+		if (pos.line == old.line)
+			{ return Pos(nw.line, pos.ch - old.ch + nw.ch) }
+		else
+			{ return Pos(nw.line + (pos.line - old.line), pos.ch) }
+	}
+
+	// Used by replaceSelections to allow moving the selection to the
+	// start or around the replaced test. Hint may be "start" or "around".
+	function computeReplacedSel(doc, changes, hint) {
+		var out = [];
+		var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
+		for (var i = 0; i < changes.length; i++) {
+			var change = changes[i];
+			var from = offsetPos(change.from, oldPrev, newPrev);
+			var to = offsetPos(changeEnd(change), oldPrev, newPrev);
+			oldPrev = change.to;
+			newPrev = to;
+			if (hint == "around") {
+				var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
+				out[i] = new Range(inv ? to : from, inv ? from : to);
+			} else {
+				out[i] = new Range(from, from);
+			}
+		}
+		return new Selection(out, doc.sel.primIndex)
+	}
+
+	// Used to get the editor into a consistent state again when options change.
+
+	function loadMode(cm) {
+		cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
+		resetModeState(cm);
+	}
+
+	function resetModeState(cm) {
+		cm.doc.iter(function (line) {
+			if (line.stateAfter) { line.stateAfter = null; }
+			if (line.styles) { line.styles = null; }
+		});
+		cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
+		startWorker(cm, 100);
+		cm.state.modeGen++;
+		if (cm.curOp) { regChange(cm); }
+	}
+
+	// DOCUMENT DATA STRUCTURE
+
+	// By default, updates that start and end at the beginning of a line
+	// are treated specially, in order to make the association of line
+	// widgets and marker elements with the text behave more intuitive.
+	function isWholeLineUpdate(doc, change) {
+		return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+			(!doc.cm || doc.cm.options.wholeLineUpdateBefore)
+	}
+
+	// Perform a change on the document data structure.
+	function updateDoc(doc, change, markedSpans, estimateHeight$$1) {
+		function spansFor(n) {return markedSpans ? markedSpans[n] : null}
+		function update(line, text, spans) {
+			updateLine(line, text, spans, estimateHeight$$1);
+			signalLater(line, "change", line, change);
+		}
+		function linesFor(start, end) {
+			var result = [];
+			for (var i = start; i < end; ++i)
+				{ result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); }
+			return result
+		}
+
+		var from = change.from, to = change.to, text = change.text;
+		var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
+		var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
+
+		// Adjust the line structure
+		if (change.full) {
+			doc.insert(0, linesFor(0, text.length));
+			doc.remove(text.length, doc.size - text.length);
+		} else if (isWholeLineUpdate(doc, change)) {
+			// This is a whole-line replace. Treated specially to make
+			// sure line objects move the way they are supposed to.
+			var added = linesFor(0, text.length - 1);
+			update(lastLine, lastLine.text, lastSpans);
+			if (nlines) { doc.remove(from.line, nlines); }
+			if (added.length) { doc.insert(from.line, added); }
+		} else if (firstLine == lastLine) {
+			if (text.length == 1) {
+				update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
+			} else {
+				var added$1 = linesFor(1, text.length - 1);
+				added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1));
+				update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+				doc.insert(from.line + 1, added$1);
+			}
+		} else if (text.length == 1) {
+			update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
+			doc.remove(from.line + 1, nlines);
+		} else {
+			update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+			update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
+			var added$2 = linesFor(1, text.length - 1);
+			if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
+			doc.insert(from.line + 1, added$2);
+		}
+
+		signalLater(doc, "change", doc, change);
+	}
+
+	// Call f for all linked documents.
+	function linkedDocs(doc, f, sharedHistOnly) {
+		function propagate(doc, skip, sharedHist) {
+			if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
+				var rel = doc.linked[i];
+				if (rel.doc == skip) { continue }
+				var shared = sharedHist && rel.sharedHist;
+				if (sharedHistOnly && !shared) { continue }
+				f(rel.doc, shared);
+				propagate(rel.doc, doc, shared);
+			} }
+		}
+		propagate(doc, null, true);
+	}
+
+	// Attach a document to an editor.
+	function attachDoc(cm, doc) {
+		if (doc.cm) { throw new Error("This document is already in use.") }
+		cm.doc = doc;
+		doc.cm = cm;
+		estimateLineHeights(cm);
+		loadMode(cm);
+		setDirectionClass(cm);
+		if (!cm.options.lineWrapping) { findMaxLine(cm); }
+		cm.options.mode = doc.modeOption;
+		regChange(cm);
+	}
+
+	function setDirectionClass(cm) {
+	(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
+	}
+
+	function directionChanged(cm) {
+		runInOp(cm, function () {
+			setDirectionClass(cm);
+			regChange(cm);
+		});
+	}
+
+	function History(startGen) {
+		// Arrays of change events and selections. Doing something adds an
+		// event to done and clears undo. Undoing moves events from done
+		// to undone, redoing moves them in the other direction.
+		this.done = []; this.undone = [];
+		this.undoDepth = Infinity;
+		// Used to track when changes can be merged into a single undo
+		// event
+		this.lastModTime = this.lastSelTime = 0;
+		this.lastOp = this.lastSelOp = null;
+		this.lastOrigin = this.lastSelOrigin = null;
+		// Used by the isClean() method
+		this.generation = this.maxGeneration = startGen || 1;
+	}
+
+	// Create a history change event from an updateDoc-style change
+	// object.
+	function historyChangeFromChange(doc, change) {
+		var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
+		attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+		linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
+		return histChange
+	}
+
+	// Pop all selection events off the end of a history array. Stop at
+	// a change event.
+	function clearSelectionEvents(array) {
+		while (array.length) {
+			var last = lst(array);
+			if (last.ranges) { array.pop(); }
+			else { break }
+		}
+	}
+
+	// Find the top change event in the history. Pop off selection
+	// events that are in the way.
+	function lastChangeEvent(hist, force) {
+		if (force) {
+			clearSelectionEvents(hist.done);
+			return lst(hist.done)
+		} else if (hist.done.length && !lst(hist.done).ranges) {
+			return lst(hist.done)
+		} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+			hist.done.pop();
+			return lst(hist.done)
+		}
+	}
+
+	// Register a change in the history. Merges changes that are within
+	// a single operation, or are close together with an origin that
+	// allows merging (starting with "+") into a single event.
+	function addChangeToHistory(doc, change, selAfter, opId) {
+		var hist = doc.history;
+		hist.undone.length = 0;
+		var time = +new Date, cur;
+		var last;
+
+		if ((hist.lastOp == opId ||
+				 hist.lastOrigin == change.origin && change.origin &&
+				 ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
+					change.origin.charAt(0) == "*")) &&
+				(cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+			// Merge this change into the last event
+			last = lst(cur.changes);
+			if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+				// Optimized case for simple insertion -- don't want to add
+				// new changesets for every character typed
+				last.to = changeEnd(change);
+			} else {
+				// Add new sub-event
+				cur.changes.push(historyChangeFromChange(doc, change));
+			}
+		} else {
+			// Can not be merged, start a new event.
+			var before = lst(hist.done);
+			if (!before || !before.ranges)
+				{ pushSelectionToHistory(doc.sel, hist.done); }
+			cur = {changes: [historyChangeFromChange(doc, change)],
+						 generation: hist.generation};
+			hist.done.push(cur);
+			while (hist.done.length > hist.undoDepth) {
+				hist.done.shift();
+				if (!hist.done[0].ranges) { hist.done.shift(); }
+			}
+		}
+		hist.done.push(selAfter);
+		hist.generation = ++hist.maxGeneration;
+		hist.lastModTime = hist.lastSelTime = time;
+		hist.lastOp = hist.lastSelOp = opId;
+		hist.lastOrigin = hist.lastSelOrigin = change.origin;
+
+		if (!last) { signal(doc, "historyAdded"); }
+	}
+
+	function selectionEventCanBeMerged(doc, origin, prev, sel) {
+		var ch = origin.charAt(0);
+		return ch == "*" ||
+			ch == "+" &&
+			prev.ranges.length == sel.ranges.length &&
+			prev.somethingSelected() == sel.somethingSelected() &&
+			new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
+	}
+
+	// Called whenever the selection changes, sets the new selection as
+	// the pending selection in the history, and pushes the old pending
+	// selection into the 'done' array when it was significantly
+	// different (in number of selected ranges, emptiness, or time).
+	function addSelectionToHistory(doc, sel, opId, options) {
+		var hist = doc.history, origin = options && options.origin;
+
+		// A new event is started when the previous origin does not match
+		// the current, or the origins don't allow matching. Origins
+		// starting with * are always merged, those starting with + are
+		// merged when similar and close together in time.
+		if (opId == hist.lastSelOp ||
+				(origin && hist.lastSelOrigin == origin &&
+				 (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+					selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+			{ hist.done[hist.done.length - 1] = sel; }
+		else
+			{ pushSelectionToHistory(sel, hist.done); }
+
+		hist.lastSelTime = +new Date;
+		hist.lastSelOrigin = origin;
+		hist.lastSelOp = opId;
+		if (options && options.clearRedo !== false)
+			{ clearSelectionEvents(hist.undone); }
+	}
+
+	function pushSelectionToHistory(sel, dest) {
+		var top = lst(dest);
+		if (!(top && top.ranges && top.equals(sel)))
+			{ dest.push(sel); }
+	}
+
+	// Used to store marked span information in the history.
+	function attachLocalSpans(doc, change, from, to) {
+		var existing = change["spans_" + doc.id], n = 0;
+		doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
+			if (line.markedSpans)
+				{ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
+			++n;
+		});
+	}
+
+	// When un/re-doing restores text containing marked spans, those
+	// that have been explicitly cleared should not be restored.
+	function removeClearedSpans(spans) {
+		if (!spans) { return null }
+		var out;
+		for (var i = 0; i < spans.length; ++i) {
+			if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
+			else if (out) { out.push(spans[i]); }
+		}
+		return !out ? spans : out.length ? out : null
+	}
+
+	// Retrieve and filter the old marked spans stored in a change event.
+	function getOldSpans(doc, change) {
+		var found = change["spans_" + doc.id];
+		if (!found) { return null }
+		var nw = [];
+		for (var i = 0; i < change.text.length; ++i)
+			{ nw.push(removeClearedSpans(found[i])); }
+		return nw
+	}
+
+	// Used for un/re-doing changes from the history. Combines the
+	// result of computing the existing spans with the set of spans that
+	// existed in the history (so that deleting around a span and then
+	// undoing brings back the span).
+	function mergeOldSpans(doc, change) {
+		var old = getOldSpans(doc, change);
+		var stretched = stretchSpansOverChange(doc, change);
+		if (!old) { return stretched }
+		if (!stretched) { return old }
+
+		for (var i = 0; i < old.length; ++i) {
+			var oldCur = old[i], stretchCur = stretched[i];
+			if (oldCur && stretchCur) {
+				spans: for (var j = 0; j < stretchCur.length; ++j) {
+					var span = stretchCur[j];
+					for (var k = 0; k < oldCur.length; ++k)
+						{ if (oldCur[k].marker == span.marker) { continue spans } }
+					oldCur.push(span);
+				}
+			} else if (stretchCur) {
+				old[i] = stretchCur;
+			}
+		}
+		return old
+	}
+
+	// Used both to provide a JSON-safe object in .getHistory, and, when
+	// detaching a document, to split the history in two
+	function copyHistoryArray(events, newGroup, instantiateSel) {
+		var copy = [];
+		for (var i = 0; i < events.length; ++i) {
+			var event = events[i];
+			if (event.ranges) {
+				copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
+				continue
+			}
+			var changes = event.changes, newChanges = [];
+			copy.push({changes: newChanges});
+			for (var j = 0; j < changes.length; ++j) {
+				var change = changes[j], m = (void 0);
+				newChanges.push({from: change.from, to: change.to, text: change.text});
+				if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
+					if (indexOf(newGroup, Number(m[1])) > -1) {
+						lst(newChanges)[prop] = change[prop];
+						delete change[prop];
+					}
+				} } }
+			}
+		}
+		return copy
+	}
+
+	// The 'scroll' parameter given to many of these indicated whether
+	// the new cursor position should be scrolled into view after
+	// modifying the selection.
+
+	// If shift is held or the extend flag is set, extends a range to
+	// include a given position (and optionally a second position).
+	// Otherwise, simply returns the range between the given positions.
+	// Used for cursor motion and such.
+	function extendRange(range, head, other, extend) {
+		if (extend) {
+			var anchor = range.anchor;
+			if (other) {
+				var posBefore = cmp(head, anchor) < 0;
+				if (posBefore != (cmp(other, anchor) < 0)) {
+					anchor = head;
+					head = other;
+				} else if (posBefore != (cmp(head, other) < 0)) {
+					head = other;
+				}
+			}
+			return new Range(anchor, head)
+		} else {
+			return new Range(other || head, head)
+		}
+	}
+
+	// Extend the primary selection range, discard the rest.
+	function extendSelection(doc, head, other, options, extend) {
+		if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
+		setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
+	}
+
+	// Extend all selections (pos is an array of selections with length
+	// equal the number of selections)
+	function extendSelections(doc, heads, options) {
+		var out = [];
+		var extend = doc.cm && (doc.cm.display.shift || doc.extend);
+		for (var i = 0; i < doc.sel.ranges.length; i++)
+			{ out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
+		var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
+		setSelection(doc, newSel, options);
+	}
+
+	// Updates a single range in the selection.
+	function replaceOneSelection(doc, i, range, options) {
+		var ranges = doc.sel.ranges.slice(0);
+		ranges[i] = range;
+		setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
+	}
+
+	// Reset the selection to a single range.
+	function setSimpleSelection(doc, anchor, head, options) {
+		setSelection(doc, simpleSelection(anchor, head), options);
+	}
+
+	// Give beforeSelectionChange handlers a change to influence a
+	// selection update.
+	function filterSelectionChange(doc, sel, options) {
+		var obj = {
+			ranges: sel.ranges,
+			update: function(ranges) {
+				var this$1 = this;
+
+				this.ranges = [];
+				for (var i = 0; i < ranges.length; i++)
+					{ this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+																		 clipPos(doc, ranges[i].head)); }
+			},
+			origin: options && options.origin
+		};
+		signal(doc, "beforeSelectionChange", doc, obj);
+		if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
+		if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
+		else { return sel }
+	}
+
+	function setSelectionReplaceHistory(doc, sel, options) {
+		var done = doc.history.done, last = lst(done);
+		if (last && last.ranges) {
+			done[done.length - 1] = sel;
+			setSelectionNoUndo(doc, sel, options);
+		} else {
+			setSelection(doc, sel, options);
+		}
+	}
+
+	// Set a new selection.
+	function setSelection(doc, sel, options) {
+		setSelectionNoUndo(doc, sel, options);
+		addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
+	}
+
+	function setSelectionNoUndo(doc, sel, options) {
+		if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+			{ sel = filterSelectionChange(doc, sel, options); }
+
+		var bias = options && options.bias ||
+			(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
+		setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
+
+		if (!(options && options.scroll === false) && doc.cm)
+			{ ensureCursorVisible(doc.cm); }
+	}
+
+	function setSelectionInner(doc, sel) {
+		if (sel.equals(doc.sel)) { return }
+
+		doc.sel = sel;
+
+		if (doc.cm) {
+			doc.cm.curOp.updateInput = 1;
+			doc.cm.curOp.selectionChanged = true;
+			signalCursorActivity(doc.cm);
+		}
+		signalLater(doc, "cursorActivity", doc);
+	}
+
+	// Verify that the selection does not partially select any atomic
+	// marked ranges.
+	function reCheckSelection(doc) {
+		setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
+	}
+
+	// Return a selection that does not partially select any atomic
+	// ranges.
+	function skipAtomicInSelection(doc, sel, bias, mayClear) {
+		var out;
+		for (var i = 0; i < sel.ranges.length; i++) {
+			var range = sel.ranges[i];
+			var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
+			var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
+			var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
+			if (out || newAnchor != range.anchor || newHead != range.head) {
+				if (!out) { out = sel.ranges.slice(0, i); }
+				out[i] = new Range(newAnchor, newHead);
+			}
+		}
+		return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
+	}
+
+	function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
+		var line = getLine(doc, pos.line);
+		if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+			var sp = line.markedSpans[i], m = sp.marker;
+
+			// Determine if we should prevent the cursor being placed to the left/right of an atomic marker
+			// Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
+			// is with selectLeft/Right
+			var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
+			var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;
+
+			if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
+					(sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
+				if (mayClear) {
+					signal(m, "beforeCursorEnter");
+					if (m.explicitlyCleared) {
+						if (!line.markedSpans) { break }
+						else {--i; continue}
+					}
+				}
+				if (!m.atomic) { continue }
+
+				if (oldPos) {
+					var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
+					if (dir < 0 ? preventCursorRight : preventCursorLeft)
+						{ near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
+					if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
+						{ return skipAtomicInner(doc, near, pos, dir, mayClear) }
+				}
+
+				var far = m.find(dir < 0 ? -1 : 1);
+				if (dir < 0 ? preventCursorLeft : preventCursorRight)
+					{ far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
+				return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
+			}
+		} }
+		return pos
+	}
+
+	// Ensure a given position is not inside an atomic range.
+	function skipAtomic(doc, pos, oldPos, bias, mayClear) {
+		var dir = bias || 1;
+		var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
+				(!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
+				skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
+				(!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
+		if (!found) {
+			doc.cantEdit = true;
+			return Pos(doc.first, 0)
+		}
+		return found
+	}
+
+	function movePos(doc, pos, dir, line) {
+		if (dir < 0 && pos.ch == 0) {
+			if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
+			else { return null }
+		} else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
+			if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
+			else { return null }
+		} else {
+			return new Pos(pos.line, pos.ch + dir)
+		}
+	}
+
+	function selectAll(cm) {
+		cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
+	}
+
+	// UPDATING
+
+	// Allow "beforeChange" event handlers to influence a change
+	function filterChange(doc, change, update) {
+		var obj = {
+			canceled: false,
+			from: change.from,
+			to: change.to,
+			text: change.text,
+			origin: change.origin,
+			cancel: function () { return obj.canceled = true; }
+		};
+		if (update) { obj.update = function (from, to, text, origin) {
+			if (from) { obj.from = clipPos(doc, from); }
+			if (to) { obj.to = clipPos(doc, to); }
+			if (text) { obj.text = text; }
+			if (origin !== undefined) { obj.origin = origin; }
+		}; }
+		signal(doc, "beforeChange", doc, obj);
+		if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }
+
+		if (obj.canceled) {
+			if (doc.cm) { doc.cm.curOp.updateInput = 2; }
+			return null
+		}
+		return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
+	}
+
+	// Apply a change to a document, and add it to the document's
+	// history, and propagating it to all linked documents.
+	function makeChange(doc, change, ignoreReadOnly) {
+		if (doc.cm) {
+			if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
+			if (doc.cm.state.suppressEdits) { return }
+		}
+
+		if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+			change = filterChange(doc, change, true);
+			if (!change) { return }
+		}
+
+		// Possibly split or suppress the update based on the presence
+		// of read-only spans in its range.
+		var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
+		if (split) {
+			for (var i = split.length - 1; i >= 0; --i)
+				{ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
+		} else {
+			makeChangeInner(doc, change);
+		}
+	}
+
+	function makeChangeInner(doc, change) {
+		if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
+		var selAfter = computeSelAfterChange(doc, change);
+		addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
+
+		makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
+		var rebased = [];
+
+		linkedDocs(doc, function (doc, sharedHist) {
+			if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+				rebaseHist(doc.history, change);
+				rebased.push(doc.history);
+			}
+			makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
+		});
+	}
+
+	// Revert a change stored in a document's history.
+	function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+		var suppress = doc.cm && doc.cm.state.suppressEdits;
+		if (suppress && !allowSelectionOnly) { return }
+
+		var hist = doc.history, event, selAfter = doc.sel;
+		var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
+
+		// Verify that there is a useable event (so that ctrl-z won't
+		// needlessly clear selection events)
+		var i = 0;
+		for (; i < source.length; i++) {
+			event = source[i];
+			if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+				{ break }
+		}
+		if (i == source.length) { return }
+		hist.lastOrigin = hist.lastSelOrigin = null;
+
+		for (;;) {
+			event = source.pop();
+			if (event.ranges) {
+				pushSelectionToHistory(event, dest);
+				if (allowSelectionOnly && !event.equals(doc.sel)) {
+					setSelection(doc, event, {clearRedo: false});
+					return
+				}
+				selAfter = event;
+			} else if (suppress) {
+				source.push(event);
+				return
+			} else { break }
+		}
+
+		// Build up a reverse change object to add to the opposite history
+		// stack (redo when undoing, and vice versa).
+		var antiChanges = [];
+		pushSelectionToHistory(selAfter, dest);
+		dest.push({changes: antiChanges, generation: hist.generation});
+		hist.generation = event.generation || ++hist.maxGeneration;
+
+		var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
+
+		var loop = function ( i ) {
+			var change = event.changes[i];
+			change.origin = type;
+			if (filter && !filterChange(doc, change, false)) {
+				source.length = 0;
+				return {}
+			}
+
+			antiChanges.push(historyChangeFromChange(doc, change));
+
+			var after = i ? computeSelAfterChange(doc, change) : lst(source);
+			makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
+			if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
+			var rebased = [];
+
+			// Propagate to the linked documents
+			linkedDocs(doc, function (doc, sharedHist) {
+				if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+					rebaseHist(doc.history, change);
+					rebased.push(doc.history);
+				}
+				makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
+			});
+		};
+
+		for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
+			var returned = loop( i$1 );
+
+			if ( returned ) return returned.v;
+		}
+	}
+
+	// Sub-views need their line numbers shifted when text is added
+	// above or below them in the parent document.
+	function shiftDoc(doc, distance) {
+		if (distance == 0) { return }
+		doc.first += distance;
+		doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
+			Pos(range.anchor.line + distance, range.anchor.ch),
+			Pos(range.head.line + distance, range.head.ch)
+		); }), doc.sel.primIndex);
+		if (doc.cm) {
+			regChange(doc.cm, doc.first, doc.first - distance, distance);
+			for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+				{ regLineChange(doc.cm, l, "gutter"); }
+		}
+	}
+
+	// More lower-level change function, handling only a single document
+	// (not linked ones).
+	function makeChangeSingleDoc(doc, change, selAfter, spans) {
+		if (doc.cm && !doc.cm.curOp)
+			{ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
+
+		if (change.to.line < doc.first) {
+			shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
+			return
+		}
+		if (change.from.line > doc.lastLine()) { return }
+
+		// Clip the change to the size of this doc
+		if (change.from.line < doc.first) {
+			var shift = change.text.length - 1 - (doc.first - change.from.line);
+			shiftDoc(doc, shift);
+			change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+								text: [lst(change.text)], origin: change.origin};
+		}
+		var last = doc.lastLine();
+		if (change.to.line > last) {
+			change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+								text: [change.text[0]], origin: change.origin};
+		}
+
+		change.removed = getBetween(doc, change.from, change.to);
+
+		if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
+		if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
+		else { updateDoc(doc, change, spans); }
+		setSelectionNoUndo(doc, selAfter, sel_dontScroll);
+	}
+
+	// Handle the interaction of a change to a document with the editor
+	// that this document is part of.
+	function makeChangeSingleDocInEditor(cm, change, spans) {
+		var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
+
+		var recomputeMaxLength = false, checkWidthStart = from.line;
+		if (!cm.options.lineWrapping) {
+			checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
+			doc.iter(checkWidthStart, to.line + 1, function (line) {
+				if (line == display.maxLine) {
+					recomputeMaxLength = true;
+					return true
+				}
+			});
+		}
+
+		if (doc.sel.contains(change.from, change.to) > -1)
+			{ signalCursorActivity(cm); }
+
+		updateDoc(doc, change, spans, estimateHeight(cm));
+
+		if (!cm.options.lineWrapping) {
+			doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
+				var len = lineLength(line);
+				if (len > display.maxLineLength) {
+					display.maxLine = line;
+					display.maxLineLength = len;
+					display.maxLineChanged = true;
+					recomputeMaxLength = false;
+				}
+			});
+			if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
+		}
+
+		retreatFrontier(doc, from.line);
+		startWorker(cm, 400);
+
+		var lendiff = change.text.length - (to.line - from.line) - 1;
+		// Remember that these lines changed, for updating the display
+		if (change.full)
+			{ regChange(cm); }
+		else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+			{ regLineChange(cm, from.line, "text"); }
+		else
+			{ regChange(cm, from.line, to.line + 1, lendiff); }
+
+		var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
+		if (changeHandler || changesHandler) {
+			var obj = {
+				from: from, to: to,
+				text: change.text,
+				removed: change.removed,
+				origin: change.origin
+			};
+			if (changeHandler) { signalLater(cm, "change", cm, obj); }
+			if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
+		}
+		cm.display.selForContextMenu = null;
+	}
+
+	function replaceRange(doc, code, from, to, origin) {
+		var assign;
+
+		if (!to) { to = from; }
+		if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
+		if (typeof code == "string") { code = doc.splitLines(code); }
+		makeChange(doc, {from: from, to: to, text: code, origin: origin});
+	}
+
+	// Rebasing/resetting history to deal with externally-sourced changes
+
+	function rebaseHistSelSingle(pos, from, to, diff) {
+		if (to < pos.line) {
+			pos.line += diff;
+		} else if (from < pos.line) {
+			pos.line = from;
+			pos.ch = 0;
+		}
+	}
+
+	// Tries to rebase an array of history events given a change in the
+	// document. If the change touches the same lines as the event, the
+	// event, and everything 'behind' it, is discarded. If the change is
+	// before the event, the event's positions are updated. Uses a
+	// copy-on-write scheme for the positions, to avoid having to
+	// reallocate them all on every rebase, but also avoid problems with
+	// shared position objects being unsafely updated.
+	function rebaseHistArray(array, from, to, diff) {
+		for (var i = 0; i < array.length; ++i) {
+			var sub = array[i], ok = true;
+			if (sub.ranges) {
+				if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
+				for (var j = 0; j < sub.ranges.length; j++) {
+					rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
+					rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
+				}
+				continue
+			}
+			for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
+				var cur = sub.changes[j$1];
+				if (to < cur.from.line) {
+					cur.from = Pos(cur.from.line + diff, cur.from.ch);
+					cur.to = Pos(cur.to.line + diff, cur.to.ch);
+				} else if (from <= cur.to.line) {
+					ok = false;
+					break
+				}
+			}
+			if (!ok) {
+				array.splice(0, i + 1);
+				i = 0;
+			}
+		}
+	}
+
+	function rebaseHist(hist, change) {
+		var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
+		rebaseHistArray(hist.done, from, to, diff);
+		rebaseHistArray(hist.undone, from, to, diff);
+	}
+
+	// Utility for applying a change to a line by handle or number,
+	// returning the number and optionally registering the line as
+	// changed.
+	function changeLine(doc, handle, changeType, op) {
+		var no = handle, line = handle;
+		if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
+		else { no = lineNo(handle); }
+		if (no == null) { return null }
+		if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
+		return line
+	}
+
+	// The document is represented as a BTree consisting of leaves, with
+	// chunk of lines in them, and branches, with up to ten leaves or
+	// other branch nodes below them. The top node is always a branch
+	// node, and is the document object itself (meaning it has
+	// additional methods and properties).
+	//
+	// All nodes have parent links. The tree is used both to go from
+	// line numbers to line objects, and to go from objects to numbers.
+	// It also indexes by height, and is used to convert between height
+	// and line object, and to find the total height of the document.
+	//
+	// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+	function LeafChunk(lines) {
+		var this$1 = this;
+
+		this.lines = lines;
+		this.parent = null;
+		var height = 0;
+		for (var i = 0; i < lines.length; ++i) {
+			lines[i].parent = this$1;
+			height += lines[i].height;
+		}
+		this.height = height;
+	}
+
+	LeafChunk.prototype = {
+		chunkSize: function() { return this.lines.length },
+
+		// Remove the n lines at offset 'at'.
+		removeInner: function(at, n) {
+			var this$1 = this;
+
+			for (var i = at, e = at + n; i < e; ++i) {
+				var line = this$1.lines[i];
+				this$1.height -= line.height;
+				cleanUpLine(line);
+				signalLater(line, "delete");
+			}
+			this.lines.splice(at, n);
+		},
+
+		// Helper used to collapse a small branch into a single leaf.
+		collapse: function(lines) {
+			lines.push.apply(lines, this.lines);
+		},
+
+		// Insert the given array of lines at offset 'at', count them as
+		// having the given height.
+		insertInner: function(at, lines, height) {
+			var this$1 = this;
+
+			this.height += height;
+			this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+			for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; }
+		},
+
+		// Used to iterate over a part of the tree.
+		iterN: function(at, n, op) {
+			var this$1 = this;
+
+			for (var e = at + n; at < e; ++at)
+				{ if (op(this$1.lines[at])) { return true } }
+		}
+	};
+
+	function BranchChunk(children) {
+		var this$1 = this;
+
+		this.children = children;
+		var size = 0, height = 0;
+		for (var i = 0; i < children.length; ++i) {
+			var ch = children[i];
+			size += ch.chunkSize(); height += ch.height;
+			ch.parent = this$1;
+		}
+		this.size = size;
+		this.height = height;
+		this.parent = null;
+	}
+
+	BranchChunk.prototype = {
+		chunkSize: function() { return this.size },
+
+		removeInner: function(at, n) {
+			var this$1 = this;
+
+			this.size -= n;
+			for (var i = 0; i < this.children.length; ++i) {
+				var child = this$1.children[i], sz = child.chunkSize();
+				if (at < sz) {
+					var rm = Math.min(n, sz - at), oldHeight = child.height;
+					child.removeInner(at, rm);
+					this$1.height -= oldHeight - child.height;
+					if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; }
+					if ((n -= rm) == 0) { break }
+					at = 0;
+				} else { at -= sz; }
+			}
+			// If the result is smaller than 25 lines, ensure that it is a
+			// single leaf node.
+			if (this.size - n < 25 &&
+					(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+				var lines = [];
+				this.collapse(lines);
+				this.children = [new LeafChunk(lines)];
+				this.children[0].parent = this;
+			}
+		},
+
+		collapse: function(lines) {
+			var this$1 = this;
+
+			for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); }
+		},
+
+		insertInner: function(at, lines, height) {
+			var this$1 = this;
+
+			this.size += lines.length;
+			this.height += height;
+			for (var i = 0; i < this.children.length; ++i) {
+				var child = this$1.children[i], sz = child.chunkSize();
+				if (at <= sz) {
+					child.insertInner(at, lines, height);
+					if (child.lines && child.lines.length > 50) {
+						// To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
+						// Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
+						var remaining = child.lines.length % 25 + 25;
+						for (var pos = remaining; pos < child.lines.length;) {
+							var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
+							child.height -= leaf.height;
+							this$1.children.splice(++i, 0, leaf);
+							leaf.parent = this$1;
+						}
+						child.lines = child.lines.slice(0, remaining);
+						this$1.maybeSpill();
+					}
+					break
+				}
+				at -= sz;
+			}
+		},
+
+		// When a node has grown, check whether it should be split.
+		maybeSpill: function() {
+			if (this.children.length <= 10) { return }
+			var me = this;
+			do {
+				var spilled = me.children.splice(me.children.length - 5, 5);
+				var sibling = new BranchChunk(spilled);
+				if (!me.parent) { // Become the parent node
+					var copy = new BranchChunk(me.children);
+					copy.parent = me;
+					me.children = [copy, sibling];
+					me = copy;
+			 } else {
+					me.size -= sibling.size;
+					me.height -= sibling.height;
+					var myIndex = indexOf(me.parent.children, me);
+					me.parent.children.splice(myIndex + 1, 0, sibling);
+				}
+				sibling.parent = me.parent;
+			} while (me.children.length > 10)
+			me.parent.maybeSpill();
+		},
+
+		iterN: function(at, n, op) {
+			var this$1 = this;
+
+			for (var i = 0; i < this.children.length; ++i) {
+				var child = this$1.children[i], sz = child.chunkSize();
+				if (at < sz) {
+					var used = Math.min(n, sz - at);
+					if (child.iterN(at, used, op)) { return true }
+					if ((n -= used) == 0) { break }
+					at = 0;
+				} else { at -= sz; }
+			}
+		}
+	};
+
+	// Line widgets are block elements displayed above or below a line.
+
+	var LineWidget = function(doc, node, options) {
+		var this$1 = this;
+
+		if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
+			{ this$1[opt] = options[opt]; } } }
+		this.doc = doc;
+		this.node = node;
+	};
+
+	LineWidget.prototype.clear = function () {
+			var this$1 = this;
+
+		var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
+		if (no == null || !ws) { return }
+		for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } }
+		if (!ws.length) { line.widgets = null; }
+		var height = widgetHeight(this);
+		updateLineHeight(line, Math.max(0, line.height - height));
+		if (cm) {
+			runInOp(cm, function () {
+				adjustScrollWhenAboveVisible(cm, line, -height);
+				regLineChange(cm, no, "widget");
+			});
+			signalLater(cm, "lineWidgetCleared", cm, this, no);
+		}
+	};
+
+	LineWidget.prototype.changed = function () {
+			var this$1 = this;
+
+		var oldH = this.height, cm = this.doc.cm, line = this.line;
+		this.height = null;
+		var diff = widgetHeight(this) - oldH;
+		if (!diff) { return }
+		if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
+		if (cm) {
+			runInOp(cm, function () {
+				cm.curOp.forceUpdate = true;
+				adjustScrollWhenAboveVisible(cm, line, diff);
+				signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
+			});
+		}
+	};
+	eventMixin(LineWidget);
+
+	function adjustScrollWhenAboveVisible(cm, line, diff) {
+		if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+			{ addToScrollTop(cm, diff); }
+	}
+
+	function addLineWidget(doc, handle, node, options) {
+		var widget = new LineWidget(doc, node, options);
+		var cm = doc.cm;
+		if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
+		changeLine(doc, handle, "widget", function (line) {
+			var widgets = line.widgets || (line.widgets = []);
+			if (widget.insertAt == null) { widgets.push(widget); }
+			else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }
+			widget.line = line;
+			if (cm && !lineIsHidden(doc, line)) {
+				var aboveVisible = heightAtLine(line) < doc.scrollTop;
+				updateLineHeight(line, line.height + widgetHeight(widget));
+				if (aboveVisible) { addToScrollTop(cm, widget.height); }
+				cm.curOp.forceUpdate = true;
+			}
+			return true
+		});
+		if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
+		return widget
+	}
+
+	// TEXTMARKERS
+
+	// Created with markText and setBookmark methods. A TextMarker is a
+	// handle that can be used to clear or find a marked position in the
+	// document. Line objects hold arrays (markedSpans) containing
+	// {from, to, marker} object pointing to such marker objects, and
+	// indicating that such a marker is present on that line. Multiple
+	// lines may point to the same marker when it spans across lines.
+	// The spans will have null for their from/to properties when the
+	// marker continues beyond the start/end of the line. Markers have
+	// links back to the lines they currently touch.
+
+	// Collapsed markers have unique ids, in order to be able to order
+	// them, which is needed for uniquely determining an outer marker
+	// when they overlap (they may nest, but not partially overlap).
+	var nextMarkerId = 0;
+
+	var TextMarker = function(doc, type) {
+		this.lines = [];
+		this.type = type;
+		this.doc = doc;
+		this.id = ++nextMarkerId;
+	};
+
+	// Clear the marker.
+	TextMarker.prototype.clear = function () {
+			var this$1 = this;
+
+		if (this.explicitlyCleared) { return }
+		var cm = this.doc.cm, withOp = cm && !cm.curOp;
+		if (withOp) { startOperation(cm); }
+		if (hasHandler(this, "clear")) {
+			var found = this.find();
+			if (found) { signalLater(this, "clear", found.from, found.to); }
+		}
+		var min = null, max = null;
+		for (var i = 0; i < this.lines.length; ++i) {
+			var line = this$1.lines[i];
+			var span = getMarkedSpanFor(line.markedSpans, this$1);
+			if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text"); }
+			else if (cm) {
+				if (span.to != null) { max = lineNo(line); }
+				if (span.from != null) { min = lineNo(line); }
+			}
+			line.markedSpans = removeMarkedSpan(line.markedSpans, span);
+			if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
+				{ updateLineHeight(line, textHeight(cm.display)); }
+		}
+		if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
+			var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual);
+			if (len > cm.display.maxLineLength) {
+				cm.display.maxLine = visual;
+				cm.display.maxLineLength = len;
+				cm.display.maxLineChanged = true;
+			}
+		} }
+
+		if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
+		this.lines.length = 0;
+		this.explicitlyCleared = true;
+		if (this.atomic && this.doc.cantEdit) {
+			this.doc.cantEdit = false;
+			if (cm) { reCheckSelection(cm.doc); }
+		}
+		if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
+		if (withOp) { endOperation(cm); }
+		if (this.parent) { this.parent.clear(); }
+	};
+
+	// Find the position of the marker in the document. Returns a {from,
+	// to} object by default. Side can be passed to get a specific side
+	// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+	// Pos objects returned contain a line object, rather than a line
+	// number (used to prevent looking up the same line twice).
+	TextMarker.prototype.find = function (side, lineObj) {
+			var this$1 = this;
+
+		if (side == null && this.type == "bookmark") { side = 1; }
+		var from, to;
+		for (var i = 0; i < this.lines.length; ++i) {
+			var line = this$1.lines[i];
+			var span = getMarkedSpanFor(line.markedSpans, this$1);
+			if (span.from != null) {
+				from = Pos(lineObj ? line : lineNo(line), span.from);
+				if (side == -1) { return from }
+			}
+			if (span.to != null) {
+				to = Pos(lineObj ? line : lineNo(line), span.to);
+				if (side == 1) { return to }
+			}
+		}
+		return from && {from: from, to: to}
+	};
+
+	// Signals that the marker's widget changed, and surrounding layout
+	// should be recomputed.
+	TextMarker.prototype.changed = function () {
+			var this$1 = this;
+
+		var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
+		if (!pos || !cm) { return }
+		runInOp(cm, function () {
+			var line = pos.line, lineN = lineNo(pos.line);
+			var view = findViewForLine(cm, lineN);
+			if (view) {
+				clearLineMeasurementCacheFor(view);
+				cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
+			}
+			cm.curOp.updateMaxLine = true;
+			if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+				var oldHeight = widget.height;
+				widget.height = null;
+				var dHeight = widgetHeight(widget) - oldHeight;
+				if (dHeight)
+					{ updateLineHeight(line, line.height + dHeight); }
+			}
+			signalLater(cm, "markerChanged", cm, this$1);
+		});
+	};
+
+	TextMarker.prototype.attachLine = function (line) {
+		if (!this.lines.length && this.doc.cm) {
+			var op = this.doc.cm.curOp;
+			if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+				{ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
+		}
+		this.lines.push(line);
+	};
+
+	TextMarker.prototype.detachLine = function (line) {
+		this.lines.splice(indexOf(this.lines, line), 1);
+		if (!this.lines.length && this.doc.cm) {
+			var op = this.doc.cm.curOp
+			;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
+		}
+	};
+	eventMixin(TextMarker);
+
+	// Create a marker, wire it up to the right lines, and
+	function markText(doc, from, to, options, type) {
+		// Shared markers (across linked documents) are handled separately
+		// (markTextShared will call out to this again, once per
+		// document).
+		if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
+		// Ensure we are in an operation.
+		if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
+
+		var marker = new TextMarker(doc, type), diff = cmp(from, to);
+		if (options) { copyObj(options, marker, false); }
+		// Don't connect empty markers unless clearWhenEmpty is false
+		if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+			{ return marker }
+		if (marker.replacedWith) {
+			// Showing up as a widget implies collapsed (widget replaces text)
+			marker.collapsed = true;
+			marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
+			if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
+			if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
+		}
+		if (marker.collapsed) {
+			if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+					from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+				{ throw new Error("Inserting collapsed marker partially overlapping an existing one") }
+			seeCollapsedSpans();
+		}
+
+		if (marker.addToHistory)
+			{ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }
+
+		var curLine = from.line, cm = doc.cm, updateMaxLine;
+		doc.iter(curLine, to.line + 1, function (line) {
+			if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+				{ updateMaxLine = true; }
+			if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
+			addMarkedSpan(line, new MarkedSpan(marker,
+																				 curLine == from.line ? from.ch : null,
+																				 curLine == to.line ? to.ch : null));
+			++curLine;
+		});
+		// lineIsHidden depends on the presence of the spans, so needs a second pass
+		if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
+			if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
+		}); }
+
+		if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }
+
+		if (marker.readOnly) {
+			seeReadOnlySpans();
+			if (doc.history.done.length || doc.history.undone.length)
+				{ doc.clearHistory(); }
+		}
+		if (marker.collapsed) {
+			marker.id = ++nextMarkerId;
+			marker.atomic = true;
+		}
+		if (cm) {
+			// Sync editor state
+			if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
+			if (marker.collapsed)
+				{ regChange(cm, from.line, to.line + 1); }
+			else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
+							 marker.attributes || marker.title)
+				{ for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
+			if (marker.atomic) { reCheckSelection(cm.doc); }
+			signalLater(cm, "markerAdded", cm, marker);
+		}
+		return marker
+	}
+
+	// SHARED TEXTMARKERS
+
+	// A shared marker spans multiple linked documents. It is
+	// implemented as a meta-marker-object controlling multiple normal
+	// markers.
+	var SharedTextMarker = function(markers, primary) {
+		var this$1 = this;
+
+		this.markers = markers;
+		this.primary = primary;
+		for (var i = 0; i < markers.length; ++i)
+			{ markers[i].parent = this$1; }
+	};
+
+	SharedTextMarker.prototype.clear = function () {
+			var this$1 = this;
+
+		if (this.explicitlyCleared) { return }
+		this.explicitlyCleared = true;
+		for (var i = 0; i < this.markers.length; ++i)
+			{ this$1.markers[i].clear(); }
+		signalLater(this, "clear");
+	};
+
+	SharedTextMarker.prototype.find = function (side, lineObj) {
+		return this.primary.find(side, lineObj)
+	};
+	eventMixin(SharedTextMarker);
+
+	function markTextShared(doc, from, to, options, type) {
+		options = copyObj(options);
+		options.shared = false;
+		var markers = [markText(doc, from, to, options, type)], primary = markers[0];
+		var widget = options.widgetNode;
+		linkedDocs(doc, function (doc) {
+			if (widget) { options.widgetNode = widget.cloneNode(true); }
+			markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
+			for (var i = 0; i < doc.linked.length; ++i)
+				{ if (doc.linked[i].isParent) { return } }
+			primary = lst(markers);
+		});
+		return new SharedTextMarker(markers, primary)
+	}
+
+	function findSharedMarkers(doc) {
+		return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
+	}
+
+	function copySharedMarkers(doc, markers) {
+		for (var i = 0; i < markers.length; i++) {
+			var marker = markers[i], pos = marker.find();
+			var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
+			if (cmp(mFrom, mTo)) {
+				var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
+				marker.markers.push(subMark);
+				subMark.parent = marker;
+			}
+		}
+	}
+
+	function detachSharedMarkers(markers) {
+		var loop = function ( i ) {
+			var marker = markers[i], linked = [marker.primary.doc];
+			linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
+			for (var j = 0; j < marker.markers.length; j++) {
+				var subMarker = marker.markers[j];
+				if (indexOf(linked, subMarker.doc) == -1) {
+					subMarker.parent = null;
+					marker.markers.splice(j--, 1);
+				}
+			}
+		};
+
+		for (var i = 0; i < markers.length; i++) loop( i );
+	}
+
+	var nextDocId = 0;
+	var Doc = function(text, mode, firstLine, lineSep, direction) {
+		if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
+		if (firstLine == null) { firstLine = 0; }
+
+		BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
+		this.first = firstLine;
+		this.scrollTop = this.scrollLeft = 0;
+		this.cantEdit = false;
+		this.cleanGeneration = 1;
+		this.modeFrontier = this.highlightFrontier = firstLine;
+		var start = Pos(firstLine, 0);
+		this.sel = simpleSelection(start);
+		this.history = new History(null);
+		this.id = ++nextDocId;
+		this.modeOption = mode;
+		this.lineSep = lineSep;
+		this.direction = (direction == "rtl") ? "rtl" : "ltr";
+		this.extend = false;
+
+		if (typeof text == "string") { text = this.splitLines(text); }
+		updateDoc(this, {from: start, to: start, text: text});
+		setSelection(this, simpleSelection(start), sel_dontScroll);
+	};
+
+	Doc.prototype = createObj(BranchChunk.prototype, {
+		constructor: Doc,
+		// Iterate over the document. Supports two forms -- with only one
+		// argument, it calls that for each line in the document. With
+		// three, it iterates over the range given by the first two (with
+		// the second being non-inclusive).
+		iter: function(from, to, op) {
+			if (op) { this.iterN(from - this.first, to - from, op); }
+			else { this.iterN(this.first, this.first + this.size, from); }
+		},
+
+		// Non-public interface for adding and removing lines.
+		insert: function(at, lines) {
+			var height = 0;
+			for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
+			this.insertInner(at - this.first, lines, height);
+		},
+		remove: function(at, n) { this.removeInner(at - this.first, n); },
+
+		// From here, the methods are part of the public interface. Most
+		// are also available from CodeMirror (editor) instances.
+
+		getValue: function(lineSep) {
+			var lines = getLines(this, this.first, this.first + this.size);
+			if (lineSep === false) { return lines }
+			return lines.join(lineSep || this.lineSeparator())
+		},
+		setValue: docMethodOp(function(code) {
+			var top = Pos(this.first, 0), last = this.first + this.size - 1;
+			makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+												text: this.splitLines(code), origin: "setValue", full: true}, true);
+			if (this.cm) { scrollToCoords(this.cm, 0, 0); }
+			setSelection(this, simpleSelection(top), sel_dontScroll);
+		}),
+		replaceRange: function(code, from, to, origin) {
+			from = clipPos(this, from);
+			to = to ? clipPos(this, to) : from;
+			replaceRange(this, code, from, to, origin);
+		},
+		getRange: function(from, to, lineSep) {
+			var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
+			if (lineSep === false) { return lines }
+			return lines.join(lineSep || this.lineSeparator())
+		},
+
+		getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
+
+		getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
+		getLineNumber: function(line) {return lineNo(line)},
+
+		getLineHandleVisualStart: function(line) {
+			if (typeof line == "number") { line = getLine(this, line); }
+			return visualLine(line)
+		},
+
+		lineCount: function() {return this.size},
+		firstLine: function() {return this.first},
+		lastLine: function() {return this.first + this.size - 1},
+
+		clipPos: function(pos) {return clipPos(this, pos)},
+
+		getCursor: function(start) {
+			var range$$1 = this.sel.primary(), pos;
+			if (start == null || start == "head") { pos = range$$1.head; }
+			else if (start == "anchor") { pos = range$$1.anchor; }
+			else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); }
+			else { pos = range$$1.from(); }
+			return pos
+		},
+		listSelections: function() { return this.sel.ranges },
+		somethingSelected: function() {return this.sel.somethingSelected()},
+
+		setCursor: docMethodOp(function(line, ch, options) {
+			setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
+		}),
+		setSelection: docMethodOp(function(anchor, head, options) {
+			setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
+		}),
+		extendSelection: docMethodOp(function(head, other, options) {
+			extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
+		}),
+		extendSelections: docMethodOp(function(heads, options) {
+			extendSelections(this, clipPosArray(this, heads), options);
+		}),
+		extendSelectionsBy: docMethodOp(function(f, options) {
+			var heads = map(this.sel.ranges, f);
+			extendSelections(this, clipPosArray(this, heads), options);
+		}),
+		setSelections: docMethodOp(function(ranges, primary, options) {
+			var this$1 = this;
+
+			if (!ranges.length) { return }
+			var out = [];
+			for (var i = 0; i < ranges.length; i++)
+				{ out[i] = new Range(clipPos(this$1, ranges[i].anchor),
+													 clipPos(this$1, ranges[i].head)); }
+			if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
+			setSelection(this, normalizeSelection(this.cm, out, primary), options);
+		}),
+		addSelection: docMethodOp(function(anchor, head, options) {
+			var ranges = this.sel.ranges.slice(0);
+			ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
+			setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
+		}),
+
+		getSelection: function(lineSep) {
+			var this$1 = this;
+
+			var ranges = this.sel.ranges, lines;
+			for (var i = 0; i < ranges.length; i++) {
+				var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
+				lines = lines ? lines.concat(sel) : sel;
+			}
+			if (lineSep === false) { return lines }
+			else { return lines.join(lineSep || this.lineSeparator()) }
+		},
+		getSelections: function(lineSep) {
+			var this$1 = this;
+
+			var parts = [], ranges = this.sel.ranges;
+			for (var i = 0; i < ranges.length; i++) {
+				var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
+				if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); }
+				parts[i] = sel;
+			}
+			return parts
+		},
+		replaceSelection: function(code, collapse, origin) {
+			var dup = [];
+			for (var i = 0; i < this.sel.ranges.length; i++)
+				{ dup[i] = code; }
+			this.replaceSelections(dup, collapse, origin || "+input");
+		},
+		replaceSelections: docMethodOp(function(code, collapse, origin) {
+			var this$1 = this;
+
+			var changes = [], sel = this.sel;
+			for (var i = 0; i < sel.ranges.length; i++) {
+				var range$$1 = sel.ranges[i];
+				changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin};
+			}
+			var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
+			for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
+				{ makeChange(this$1, changes[i$1]); }
+			if (newSel) { setSelectionReplaceHistory(this, newSel); }
+			else if (this.cm) { ensureCursorVisible(this.cm); }
+		}),
+		undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
+		redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
+		undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
+		redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
+
+		setExtending: function(val) {this.extend = val;},
+		getExtending: function() {return this.extend},
+
+		historySize: function() {
+			var hist = this.history, done = 0, undone = 0;
+			for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
+			for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
+			return {undo: done, redo: undone}
+		},
+		clearHistory: function() {this.history = new History(this.history.maxGeneration);},
+
+		markClean: function() {
+			this.cleanGeneration = this.changeGeneration(true);
+		},
+		changeGeneration: function(forceSplit) {
+			if (forceSplit)
+				{ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
+			return this.history.generation
+		},
+		isClean: function (gen) {
+			return this.history.generation == (gen || this.cleanGeneration)
+		},
+
+		getHistory: function() {
+			return {done: copyHistoryArray(this.history.done),
+							undone: copyHistoryArray(this.history.undone)}
+		},
+		setHistory: function(histData) {
+			var hist = this.history = new History(this.history.maxGeneration);
+			hist.done = copyHistoryArray(histData.done.slice(0), null, true);
+			hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
+		},
+
+		setGutterMarker: docMethodOp(function(line, gutterID, value) {
+			return changeLine(this, line, "gutter", function (line) {
+				var markers = line.gutterMarkers || (line.gutterMarkers = {});
+				markers[gutterID] = value;
+				if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
+				return true
+			})
+		}),
+
+		clearGutter: docMethodOp(function(gutterID) {
+			var this$1 = this;
+
+			this.iter(function (line) {
+				if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+					changeLine(this$1, line, "gutter", function () {
+						line.gutterMarkers[gutterID] = null;
+						if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
+						return true
+					});
+				}
+			});
+		}),
+
+		lineInfo: function(line) {
+			var n;
+			if (typeof line == "number") {
+				if (!isLine(this, line)) { return null }
+				n = line;
+				line = getLine(this, line);
+				if (!line) { return null }
+			} else {
+				n = lineNo(line);
+				if (n == null) { return null }
+			}
+			return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+							textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+							widgets: line.widgets}
+		},
+
+		addLineClass: docMethodOp(function(handle, where, cls) {
+			return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+				var prop = where == "text" ? "textClass"
+								 : where == "background" ? "bgClass"
+								 : where == "gutter" ? "gutterClass" : "wrapClass";
+				if (!line[prop]) { line[prop] = cls; }
+				else if (classTest(cls).test(line[prop])) { return false }
+				else { line[prop] += " " + cls; }
+				return true
+			})
+		}),
+		removeLineClass: docMethodOp(function(handle, where, cls) {
+			return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+				var prop = where == "text" ? "textClass"
+								 : where == "background" ? "bgClass"
+								 : where == "gutter" ? "gutterClass" : "wrapClass";
+				var cur = line[prop];
+				if (!cur) { return false }
+				else if (cls == null) { line[prop] = null; }
+				else {
+					var found = cur.match(classTest(cls));
+					if (!found) { return false }
+					var end = found.index + found[0].length;
+					line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
+				}
+				return true
+			})
+		}),
+
+		addLineWidget: docMethodOp(function(handle, node, options) {
+			return addLineWidget(this, handle, node, options)
+		}),
+		removeLineWidget: function(widget) { widget.clear(); },
+
+		markText: function(from, to, options) {
+			return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
+		},
+		setBookmark: function(pos, options) {
+			var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+											insertLeft: options && options.insertLeft,
+											clearWhenEmpty: false, shared: options && options.shared,
+											handleMouseEvents: options && options.handleMouseEvents};
+			pos = clipPos(this, pos);
+			return markText(this, pos, pos, realOpts, "bookmark")
+		},
+		findMarksAt: function(pos) {
+			pos = clipPos(this, pos);
+			var markers = [], spans = getLine(this, pos.line).markedSpans;
+			if (spans) { for (var i = 0; i < spans.length; ++i) {
+				var span = spans[i];
+				if ((span.from == null || span.from <= pos.ch) &&
+						(span.to == null || span.to >= pos.ch))
+					{ markers.push(span.marker.parent || span.marker); }
+			} }
+			return markers
+		},
+		findMarks: function(from, to, filter) {
+			from = clipPos(this, from); to = clipPos(this, to);
+			var found = [], lineNo$$1 = from.line;
+			this.iter(from.line, to.line + 1, function (line) {
+				var spans = line.markedSpans;
+				if (spans) { for (var i = 0; i < spans.length; i++) {
+					var span = spans[i];
+					if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to ||
+								span.from == null && lineNo$$1 != from.line ||
+								span.from != null && lineNo$$1 == to.line && span.from >= to.ch) &&
+							(!filter || filter(span.marker)))
+						{ found.push(span.marker.parent || span.marker); }
+				} }
+				++lineNo$$1;
+			});
+			return found
+		},
+		getAllMarks: function() {
+			var markers = [];
+			this.iter(function (line) {
+				var sps = line.markedSpans;
+				if (sps) { for (var i = 0; i < sps.length; ++i)
+					{ if (sps[i].from != null) { markers.push(sps[i].marker); } } }
+			});
+			return markers
+		},
+
+		posFromIndex: function(off) {
+			var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length;
+			this.iter(function (line) {
+				var sz = line.text.length + sepSize;
+				if (sz > off) { ch = off; return true }
+				off -= sz;
+				++lineNo$$1;
+			});
+			return clipPos(this, Pos(lineNo$$1, ch))
+		},
+		indexFromPos: function (coords) {
+			coords = clipPos(this, coords);
+			var index = coords.ch;
+			if (coords.line < this.first || coords.ch < 0) { return 0 }
+			var sepSize = this.lineSeparator().length;
+			this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
+				index += line.text.length + sepSize;
+			});
+			return index
+		},
+
+		copy: function(copyHistory) {
+			var doc = new Doc(getLines(this, this.first, this.first + this.size),
+												this.modeOption, this.first, this.lineSep, this.direction);
+			doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
+			doc.sel = this.sel;
+			doc.extend = false;
+			if (copyHistory) {
+				doc.history.undoDepth = this.history.undoDepth;
+				doc.setHistory(this.getHistory());
+			}
+			return doc
+		},
+
+		linkedDoc: function(options) {
+			if (!options) { options = {}; }
+			var from = this.first, to = this.first + this.size;
+			if (options.from != null && options.from > from) { from = options.from; }
+			if (options.to != null && options.to < to) { to = options.to; }
+			var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
+			if (options.sharedHist) { copy.history = this.history
+			; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
+			copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
+			copySharedMarkers(copy, findSharedMarkers(this));
+			return copy
+		},
+		unlinkDoc: function(other) {
+			var this$1 = this;
+
+			if (other instanceof CodeMirror) { other = other.doc; }
+			if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
+				var link = this$1.linked[i];
+				if (link.doc != other) { continue }
+				this$1.linked.splice(i, 1);
+				other.unlinkDoc(this$1);
+				detachSharedMarkers(findSharedMarkers(this$1));
+				break
+			} }
+			// If the histories were shared, split them again
+			if (other.history == this.history) {
+				var splitIds = [other.id];
+				linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
+				other.history = new History(null);
+				other.history.done = copyHistoryArray(this.history.done, splitIds);
+				other.history.undone = copyHistoryArray(this.history.undone, splitIds);
+			}
+		},
+		iterLinkedDocs: function(f) {linkedDocs(this, f);},
+
+		getMode: function() {return this.mode},
+		getEditor: function() {return this.cm},
+
+		splitLines: function(str) {
+			if (this.lineSep) { return str.split(this.lineSep) }
+			return splitLinesAuto(str)
+		},
+		lineSeparator: function() { return this.lineSep || "\n" },
+
+		setDirection: docMethodOp(function (dir) {
+			if (dir != "rtl") { dir = "ltr"; }
+			if (dir == this.direction) { return }
+			this.direction = dir;
+			this.iter(function (line) { return line.order = null; });
+			if (this.cm) { directionChanged(this.cm); }
+		})
+	});
+
+	// Public alias.
+	Doc.prototype.eachLine = Doc.prototype.iter;
+
+	// Kludge to work around strange IE behavior where it'll sometimes
+	// re-fire a series of drag-related events right after the drop (#1551)
+	var lastDrop = 0;
+
+	function onDrop(e) {
+		var cm = this;
+		clearDragCursor(cm);
+		if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+			{ return }
+		e_preventDefault(e);
+		if (ie) { lastDrop = +new Date; }
+		var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
+		if (!pos || cm.isReadOnly()) { return }
+		// Might be a file drop, in which case we simply extract the text
+		// and insert it.
+		if (files && files.length && window.FileReader && window.File) {
+			var n = files.length, text = Array(n), read = 0;
+			var loadFile = function (file, i) {
+				if (cm.options.allowDropFileTypes &&
+						indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+					{ return }
+
+				var reader = new FileReader;
+				reader.onload = operation(cm, function () {
+					var content = reader.result;
+					if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; }
+					text[i] = content;
+					if (++read == n) {
+						pos = clipPos(cm.doc, pos);
+						var change = {from: pos, to: pos,
+													text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+													origin: "paste"};
+						makeChange(cm.doc, change);
+						setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
+					}
+				});
+				reader.readAsText(file);
+			};
+			for (var i = 0; i < n; ++i) { loadFile(files[i], i); }
+		} else { // Normal drop
+			// Don't do a replace if the drop happened inside of the selected text.
+			if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+				cm.state.draggingText(e);
+				// Ensure the editor is re-focused
+				setTimeout(function () { return cm.display.input.focus(); }, 20);
+				return
+			}
+			try {
+				var text$1 = e.dataTransfer.getData("Text");
+				if (text$1) {
+					var selected;
+					if (cm.state.draggingText && !cm.state.draggingText.copy)
+						{ selected = cm.listSelections(); }
+					setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
+					if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
+						{ replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
+					cm.replaceSelection(text$1, "around", "paste");
+					cm.display.input.focus();
+				}
+			}
+			catch(e){}
+		}
+	}
+
+	function onDragStart(cm, e) {
+		if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
+		if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
+
+		e.dataTransfer.setData("Text", cm.getSelection());
+		e.dataTransfer.effectAllowed = "copyMove";
+
+		// Use dummy image instead of default browsers image.
+		// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+		if (e.dataTransfer.setDragImage && !safari) {
+			var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
+			img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
+			if (presto) {
+				img.width = img.height = 1;
+				cm.display.wrapper.appendChild(img);
+				// Force a relayout, or Opera won't use our image for some obscure reason
+				img._top = img.offsetTop;
+			}
+			e.dataTransfer.setDragImage(img, 0, 0);
+			if (presto) { img.parentNode.removeChild(img); }
+		}
+	}
+
+	function onDragOver(cm, e) {
+		var pos = posFromMouse(cm, e);
+		if (!pos) { return }
+		var frag = document.createDocumentFragment();
+		drawSelectionCursor(cm, pos, frag);
+		if (!cm.display.dragCursor) {
+			cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
+			cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
+		}
+		removeChildrenAndAdd(cm.display.dragCursor, frag);
+	}
+
+	function clearDragCursor(cm) {
+		if (cm.display.dragCursor) {
+			cm.display.lineSpace.removeChild(cm.display.dragCursor);
+			cm.display.dragCursor = null;
+		}
+	}
+
+	// These must be handled carefully, because naively registering a
+	// handler for each editor will cause the editors to never be
+	// garbage collected.
+
+	function forEachCodeMirror(f) {
+		if (!document.getElementsByClassName) { return }
+		var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
+		for (var i = 0; i < byClass.length; i++) {
+			var cm = byClass[i].CodeMirror;
+			if (cm) { editors.push(cm); }
+		}
+		if (editors.length) { editors[0].operation(function () {
+			for (var i = 0; i < editors.length; i++) { f(editors[i]); }
+		}); }
+	}
+
+	var globalsRegistered = false;
+	function ensureGlobalHandlers() {
+		if (globalsRegistered) { return }
+		registerGlobalHandlers();
+		globalsRegistered = true;
+	}
+	function registerGlobalHandlers() {
+		// When the window resizes, we need to refresh active editors.
+		var resizeTimer;
+		on(window, "resize", function () {
+			if (resizeTimer == null) { resizeTimer = setTimeout(function () {
+				resizeTimer = null;
+				forEachCodeMirror(onResize);
+			}, 100); }
+		});
+		// When the window loses focus, we want to show the editor as blurred
+		on(window, "blur", function () { return forEachCodeMirror(onBlur); });
+	}
+	// Called when the window resizes
+	function onResize(cm) {
+		var d = cm.display;
+		// Might be a text scaling operation, clear size caches.
+		d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+		d.scrollbarsClipped = false;
+		cm.setSize();
+	}
+
+	var keyNames = {
+		3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+		19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+		36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+		46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+		106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
+		173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+		221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+		63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+	};
+
+	// Number keys
+	for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
+	// Alphabetic keys
+	for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
+	// Function keys
+	for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }
+
+	var keyMap = {};
+
+	keyMap.basic = {
+		"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+		"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+		"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+		"Tab": "defaultTab", "Shift-Tab": "indentAuto",
+		"Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+		"Esc": "singleSelection"
+	};
+	// Note that the save and find-related commands aren't defined by
+	// default. User code or addons can define them. Unknown commands
+	// are simply ignored.
+	keyMap.pcDefault = {
+		"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+		"Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+		"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+		"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+		"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+		"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+		"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+		"fallthrough": "basic"
+	};
+	// Very basic readline/emacs-style bindings, which are standard on Mac.
+	keyMap.emacsy = {
+		"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+		"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+		"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+		"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
+		"Ctrl-O": "openLine"
+	};
+	keyMap.macDefault = {
+		"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+		"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+		"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+		"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+		"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+		"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+		"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+		"fallthrough": ["basic", "emacsy"]
+	};
+	keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+
+	// KEYMAP DISPATCH
+
+	function normalizeKeyName(name) {
+		var parts = name.split(/-(?!$)/);
+		name = parts[parts.length - 1];
+		var alt, ctrl, shift, cmd;
+		for (var i = 0; i < parts.length - 1; i++) {
+			var mod = parts[i];
+			if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
+			else if (/^a(lt)?$/i.test(mod)) { alt = true; }
+			else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
+			else if (/^s(hift)?$/i.test(mod)) { shift = true; }
+			else { throw new Error("Unrecognized modifier name: " + mod) }
+		}
+		if (alt) { name = "Alt-" + name; }
+		if (ctrl) { name = "Ctrl-" + name; }
+		if (cmd) { name = "Cmd-" + name; }
+		if (shift) { name = "Shift-" + name; }
+		return name
+	}
+
+	// This is a kludge to keep keymaps mostly working as raw objects
+	// (backwards compatibility) while at the same time support features
+	// like normalization and multi-stroke key bindings. It compiles a
+	// new normalized keymap, and then updates the old object to reflect
+	// this.
+	function normalizeKeyMap(keymap) {
+		var copy = {};
+		for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
+			var value = keymap[keyname];
+			if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
+			if (value == "...") { delete keymap[keyname]; continue }
+
+			var keys = map(keyname.split(" "), normalizeKeyName);
+			for (var i = 0; i < keys.length; i++) {
+				var val = (void 0), name = (void 0);
+				if (i == keys.length - 1) {
+					name = keys.join(" ");
+					val = value;
+				} else {
+					name = keys.slice(0, i + 1).join(" ");
+					val = "...";
+				}
+				var prev = copy[name];
+				if (!prev) { copy[name] = val; }
+				else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
+			}
+			delete keymap[keyname];
+		} }
+		for (var prop in copy) { keymap[prop] = copy[prop]; }
+		return keymap
+	}
+
+	function lookupKey(key, map$$1, handle, context) {
+		map$$1 = getKeyMap(map$$1);
+		var found = map$$1.call ? map$$1.call(key, context) : map$$1[key];
+		if (found === false) { return "nothing" }
+		if (found === "...") { return "multi" }
+		if (found != null && handle(found)) { return "handled" }
+
+		if (map$$1.fallthrough) {
+			if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]")
+				{ return lookupKey(key, map$$1.fallthrough, handle, context) }
+			for (var i = 0; i < map$$1.fallthrough.length; i++) {
+				var result = lookupKey(key, map$$1.fallthrough[i], handle, context);
+				if (result) { return result }
+			}
+		}
+	}
+
+	// Modifier key presses don't count as 'real' key presses for the
+	// purpose of keymap fallthrough.
+	function isModifierKey(value) {
+		var name = typeof value == "string" ? value : keyNames[value.keyCode];
+		return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
+	}
+
+	function addModifierNames(name, event, noShift) {
+		var base = name;
+		if (event.altKey && base != "Alt") { name = "Alt-" + name; }
+		if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
+		if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; }
+		if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
+		return name
+	}
+
+	// Look up the name of a key as indicated by an event object.
+	function keyName(event, noShift) {
+		if (presto && event.keyCode == 34 && event["char"]) { return false }
+		var name = keyNames[event.keyCode];
+		if (name == null || event.altGraphKey) { return false }
+		// Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
+		// so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
+		if (event.keyCode == 3 && event.code) { name = event.code; }
+		return addModifierNames(name, event, noShift)
+	}
+
+	function getKeyMap(val) {
+		return typeof val == "string" ? keyMap[val] : val
+	}
+
+	// Helper for deleting text near the selection(s), used to implement
+	// backspace, delete, and similar functionality.
+	function deleteNearSelection(cm, compute) {
+		var ranges = cm.doc.sel.ranges, kill = [];
+		// Build up a set of ranges to kill first, merging overlapping
+		// ranges.
+		for (var i = 0; i < ranges.length; i++) {
+			var toKill = compute(ranges[i]);
+			while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+				var replaced = kill.pop();
+				if (cmp(replaced.from, toKill.from) < 0) {
+					toKill.from = replaced.from;
+					break
+				}
+			}
+			kill.push(toKill);
+		}
+		// Next, remove those actual ranges.
+		runInOp(cm, function () {
+			for (var i = kill.length - 1; i >= 0; i--)
+				{ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
+			ensureCursorVisible(cm);
+		});
+	}
+
+	function moveCharLogically(line, ch, dir) {
+		var target = skipExtendingChars(line.text, ch + dir, dir);
+		return target < 0 || target > line.text.length ? null : target
+	}
+
+	function moveLogically(line, start, dir) {
+		var ch = moveCharLogically(line, start.ch, dir);
+		return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
+	}
+
+	function endOfLine(visually, cm, lineObj, lineNo, dir) {
+		if (visually) {
+			var order = getOrder(lineObj, cm.doc.direction);
+			if (order) {
+				var part = dir < 0 ? lst(order) : order[0];
+				var moveInStorageOrder = (dir < 0) == (part.level == 1);
+				var sticky = moveInStorageOrder ? "after" : "before";
+				var ch;
+				// With a wrapped rtl chunk (possibly spanning multiple bidi parts),
+				// it could be that the last bidi part is not on the last visual line,
+				// since visual lines contain content order-consecutive chunks.
+				// Thus, in rtl, we are looking for the first (content-order) character
+				// in the rtl chunk that is on the last line (that is, the same line
+				// as the last (content-order) character).
+				if (part.level > 0 || cm.doc.direction == "rtl") {
+					var prep = prepareMeasureForLine(cm, lineObj);
+					ch = dir < 0 ? lineObj.text.length - 1 : 0;
+					var targetTop = measureCharPrepared(cm, prep, ch).top;
+					ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
+					if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
+				} else { ch = dir < 0 ? part.to : part.from; }
+				return new Pos(lineNo, ch, sticky)
+			}
+		}
+		return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
+	}
+
+	function moveVisually(cm, line, start, dir) {
+		var bidi = getOrder(line, cm.doc.direction);
+		if (!bidi) { return moveLogically(line, start, dir) }
+		if (start.ch >= line.text.length) {
+			start.ch = line.text.length;
+			start.sticky = "before";
+		} else if (start.ch <= 0) {
+			start.ch = 0;
+			start.sticky = "after";
+		}
+		var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
+		if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
+			// Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
+			// nothing interesting happens.
+			return moveLogically(line, start, dir)
+		}
+
+		var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
+		var prep;
+		var getWrappedLineExtent = function (ch) {
+			if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
+			prep = prep || prepareMeasureForLine(cm, line);
+			return wrappedLineExtentChar(cm, line, prep, ch)
+		};
+		var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);
+
+		if (cm.doc.direction == "rtl" || part.level == 1) {
+			var moveInStorageOrder = (part.level == 1) == (dir < 0);
+			var ch = mv(start, moveInStorageOrder ? 1 : -1);
+			if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
+				// Case 2: We move within an rtl part or in an rtl editor on the same visual line
+				var sticky = moveInStorageOrder ? "before" : "after";
+				return new Pos(start.line, ch, sticky)
+			}
+		}
+
+		// Case 3: Could not move within this bidi part in this visual line, so leave
+		// the current bidi part
+
+		var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
+			var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
+				? new Pos(start.line, mv(ch, 1), "before")
+				: new Pos(start.line, ch, "after"); };
+
+			for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
+				var part = bidi[partPos];
+				var moveInStorageOrder = (dir > 0) == (part.level != 1);
+				var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
+				if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
+				ch = moveInStorageOrder ? part.from : mv(part.to, -1);
+				if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
+			}
+		};
+
+		// Case 3a: Look for other bidi parts on the same visual line
+		var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
+		if (res) { return res }
+
+		// Case 3b: Look for other bidi parts on the next visual line
+		var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
+		if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
+			res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
+			if (res) { return res }
+		}
+
+		// Case 4: Nowhere to move
+		return null
+	}
+
+	// Commands are parameter-less actions that can be performed on an
+	// editor, mostly used for keybindings.
+	var commands = {
+		selectAll: selectAll,
+		singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
+		killLine: function (cm) { return deleteNearSelection(cm, function (range) {
+			if (range.empty()) {
+				var len = getLine(cm.doc, range.head.line).text.length;
+				if (range.head.ch == len && range.head.line < cm.lastLine())
+					{ return {from: range.head, to: Pos(range.head.line + 1, 0)} }
+				else
+					{ return {from: range.head, to: Pos(range.head.line, len)} }
+			} else {
+				return {from: range.from(), to: range.to()}
+			}
+		}); },
+		deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+			from: Pos(range.from().line, 0),
+			to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
+		}); }); },
+		delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+			from: Pos(range.from().line, 0), to: range.from()
+		}); }); },
+		delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
+			var top = cm.charCoords(range.head, "div").top + 5;
+			var leftPos = cm.coordsChar({left: 0, top: top}, "div");
+			return {from: leftPos, to: range.from()}
+		}); },
+		delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
+			var top = cm.charCoords(range.head, "div").top + 5;
+			var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+			return {from: range.from(), to: rightPos }
+		}); },
+		undo: function (cm) { return cm.undo(); },
+		redo: function (cm) { return cm.redo(); },
+		undoSelection: function (cm) { return cm.undoSelection(); },
+		redoSelection: function (cm) { return cm.redoSelection(); },
+		goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
+		goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
+		goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
+			{origin: "+move", bias: 1}
+		); },
+		goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
+			{origin: "+move", bias: 1}
+		); },
+		goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
+			{origin: "+move", bias: -1}
+		); },
+		goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
+			var top = cm.cursorCoords(range.head, "div").top + 5;
+			return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+		}, sel_move); },
+		goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
+			var top = cm.cursorCoords(range.head, "div").top + 5;
+			return cm.coordsChar({left: 0, top: top}, "div")
+		}, sel_move); },
+		goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
+			var top = cm.cursorCoords(range.head, "div").top + 5;
+			var pos = cm.coordsChar({left: 0, top: top}, "div");
+			if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
+			return pos
+		}, sel_move); },
+		goLineUp: function (cm) { return cm.moveV(-1, "line"); },
+		goLineDown: function (cm) { return cm.moveV(1, "line"); },
+		goPageUp: function (cm) { return cm.moveV(-1, "page"); },
+		goPageDown: function (cm) { return cm.moveV(1, "page"); },
+		goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
+		goCharRight: function (cm) { return cm.moveH(1, "char"); },
+		goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
+		goColumnRight: function (cm) { return cm.moveH(1, "column"); },
+		goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
+		goGroupRight: function (cm) { return cm.moveH(1, "group"); },
+		goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
+		goWordRight: function (cm) { return cm.moveH(1, "word"); },
+		delCharBefore: function (cm) { return cm.deleteH(-1, "char"); },
+		delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
+		delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
+		delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
+		delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
+		delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
+		indentAuto: function (cm) { return cm.indentSelection("smart"); },
+		indentMore: function (cm) { return cm.indentSelection("add"); },
+		indentLess: function (cm) { return cm.indentSelection("subtract"); },
+		insertTab: function (cm) { return cm.replaceSelection("\t"); },
+		insertSoftTab: function (cm) {
+			var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
+			for (var i = 0; i < ranges.length; i++) {
+				var pos = ranges[i].from();
+				var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
+				spaces.push(spaceStr(tabSize - col % tabSize));
+			}
+			cm.replaceSelections(spaces);
+		},
+		defaultTab: function (cm) {
+			if (cm.somethingSelected()) { cm.indentSelection("add"); }
+			else { cm.execCommand("insertTab"); }
+		},
+		// Swap the two chars left and right of each selection's head.
+		// Move cursor behind the two swapped characters afterwards.
+		//
+		// Doesn't consider line feeds a character.
+		// Doesn't scan more than one line above to find a character.
+		// Doesn't do anything on an empty line.
+		// Doesn't do anything with non-empty selections.
+		transposeChars: function (cm) { return runInOp(cm, function () {
+			var ranges = cm.listSelections(), newSel = [];
+			for (var i = 0; i < ranges.length; i++) {
+				if (!ranges[i].empty()) { continue }
+				var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
+				if (line) {
+					if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
+					if (cur.ch > 0) {
+						cur = new Pos(cur.line, cur.ch + 1);
+						cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+														Pos(cur.line, cur.ch - 2), cur, "+transpose");
+					} else if (cur.line > cm.doc.first) {
+						var prev = getLine(cm.doc, cur.line - 1).text;
+						if (prev) {
+							cur = new Pos(cur.line, 1);
+							cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+															prev.charAt(prev.length - 1),
+															Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
+						}
+					}
+				}
+				newSel.push(new Range(cur, cur));
+			}
+			cm.setSelections(newSel);
+		}); },
+		newlineAndIndent: function (cm) { return runInOp(cm, function () {
+			var sels = cm.listSelections();
+			for (var i = sels.length - 1; i >= 0; i--)
+				{ cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
+			sels = cm.listSelections();
+			for (var i$1 = 0; i$1 < sels.length; i$1++)
+				{ cm.indentLine(sels[i$1].from().line, null, true); }
+			ensureCursorVisible(cm);
+		}); },
+		openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
+		toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
+	};
+
+
+	function lineStart(cm, lineN) {
+		var line = getLine(cm.doc, lineN);
+		var visual = visualLine(line);
+		if (visual != line) { lineN = lineNo(visual); }
+		return endOfLine(true, cm, visual, lineN, 1)
+	}
+	function lineEnd(cm, lineN) {
+		var line = getLine(cm.doc, lineN);
+		var visual = visualLineEnd(line);
+		if (visual != line) { lineN = lineNo(visual); }
+		return endOfLine(true, cm, line, lineN, -1)
+	}
+	function lineStartSmart(cm, pos) {
+		var start = lineStart(cm, pos.line);
+		var line = getLine(cm.doc, start.line);
+		var order = getOrder(line, cm.doc.direction);
+		if (!order || order[0].level == 0) {
+			var firstNonWS = Math.max(0, line.text.search(/\S/));
+			var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
+			return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
+		}
+		return start
+	}
+
+	// Run a handler that was bound to a key.
+	function doHandleBinding(cm, bound, dropShift) {
+		if (typeof bound == "string") {
+			bound = commands[bound];
+			if (!bound) { return false }
+		}
+		// Ensure previous input has been read, so that the handler sees a
+		// consistent view of the document
+		cm.display.input.ensurePolled();
+		var prevShift = cm.display.shift, done = false;
+		try {
+			if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
+			if (dropShift) { cm.display.shift = false; }
+			done = bound(cm) != Pass;
+		} finally {
+			cm.display.shift = prevShift;
+			cm.state.suppressEdits = false;
+		}
+		return done
+	}
+
+	function lookupKeyForEditor(cm, name, handle) {
+		for (var i = 0; i < cm.state.keyMaps.length; i++) {
+			var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
+			if (result) { return result }
+		}
+		return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+			|| lookupKey(name, cm.options.keyMap, handle, cm)
+	}
+
+	// Note that, despite the name, this function is also used to check
+	// for bound mouse clicks.
+
+	var stopSeq = new Delayed;
+
+	function dispatchKey(cm, name, e, handle) {
+		var seq = cm.state.keySeq;
+		if (seq) {
+			if (isModifierKey(name)) { return "handled" }
+			if (/\'$/.test(name))
+				{ cm.state.keySeq = null; }
+			else
+				{ stopSeq.set(50, function () {
+					if (cm.state.keySeq == seq) {
+						cm.state.keySeq = null;
+						cm.display.input.reset();
+					}
+				}); }
+			if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true }
+		}
+		return dispatchKeyInner(cm, name, e, handle)
+	}
+
+	function dispatchKeyInner(cm, name, e, handle) {
+		var result = lookupKeyForEditor(cm, name, handle);
+
+		if (result == "multi")
+			{ cm.state.keySeq = name; }
+		if (result == "handled")
+			{ signalLater(cm, "keyHandled", cm, name, e); }
+
+		if (result == "handled" || result == "multi") {
+			e_preventDefault(e);
+			restartBlink(cm);
+		}
+
+		return !!result
+	}
+
+	// Handle a key from the keydown event.
+	function handleKeyBinding(cm, e) {
+		var name = keyName(e, true);
+		if (!name) { return false }
+
+		if (e.shiftKey && !cm.state.keySeq) {
+			// First try to resolve full name (including 'Shift-'). Failing
+			// that, see if there is a cursor-motion command (starting with
+			// 'go') bound to the keyname without 'Shift-'.
+			return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
+					|| dispatchKey(cm, name, e, function (b) {
+							 if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+								 { return doHandleBinding(cm, b) }
+						 })
+		} else {
+			return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
+		}
+	}
+
+	// Handle a key from the keypress event
+	function handleCharBinding(cm, e, ch) {
+		return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
+	}
+
+	var lastStoppedKey = null;
+	function onKeyDown(e) {
+		var cm = this;
+		cm.curOp.focus = activeElt();
+		if (signalDOMEvent(cm, e)) { return }
+		// IE does strange things with escape.
+		if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
+		var code = e.keyCode;
+		cm.display.shift = code == 16 || e.shiftKey;
+		var handled = handleKeyBinding(cm, e);
+		if (presto) {
+			lastStoppedKey = handled ? code : null;
+			// Opera has no cut event... we try to at least catch the key combo
+			if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+				{ cm.replaceSelection("", null, "cut"); }
+		}
+
+		// Turn mouse into crosshair when Alt is held on Mac.
+		if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+			{ showCrossHair(cm); }
+	}
+
+	function showCrossHair(cm) {
+		var lineDiv = cm.display.lineDiv;
+		addClass(lineDiv, "CodeMirror-crosshair");
+
+		function up(e) {
+			if (e.keyCode == 18 || !e.altKey) {
+				rmClass(lineDiv, "CodeMirror-crosshair");
+				off(document, "keyup", up);
+				off(document, "mouseover", up);
+			}
+		}
+		on(document, "keyup", up);
+		on(document, "mouseover", up);
+	}
+
+	function onKeyUp(e) {
+		if (e.keyCode == 16) { this.doc.sel.shift = false; }
+		signalDOMEvent(this, e);
+	}
+
+	function onKeyPress(e) {
+		var cm = this;
+		if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
+		var keyCode = e.keyCode, charCode = e.charCode;
+		if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
+		if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
+		var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+		// Some browsers fire keypress events for backspace
+		if (ch == "\x08") { return }
+		if (handleCharBinding(cm, e, ch)) { return }
+		cm.display.input.onKeyPress(e);
+	}
+
+	var DOUBLECLICK_DELAY = 400;
+
+	var PastClick = function(time, pos, button) {
+		this.time = time;
+		this.pos = pos;
+		this.button = button;
+	};
+
+	PastClick.prototype.compare = function (time, pos, button) {
+		return this.time + DOUBLECLICK_DELAY > time &&
+			cmp(pos, this.pos) == 0 && button == this.button
+	};
+
+	var lastClick, lastDoubleClick;
+	function clickRepeat(pos, button) {
+		var now = +new Date;
+		if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
+			lastClick = lastDoubleClick = null;
+			return "triple"
+		} else if (lastClick && lastClick.compare(now, pos, button)) {
+			lastDoubleClick = new PastClick(now, pos, button);
+			lastClick = null;
+			return "double"
+		} else {
+			lastClick = new PastClick(now, pos, button);
+			lastDoubleClick = null;
+			return "single"
+		}
+	}
+
+	// A mouse down can be a single click, double click, triple click,
+	// start of selection drag, start of text drag, new cursor
+	// (ctrl-click), rectangle drag (alt-drag), or xwin
+	// middle-click-paste. Or it might be a click on something we should
+	// not interfere with, such as a scrollbar or widget.
+	function onMouseDown(e) {
+		var cm = this, display = cm.display;
+		if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
+		display.input.ensurePolled();
+		display.shift = e.shiftKey;
+
+		if (eventInWidget(display, e)) {
+			if (!webkit) {
+				// Briefly turn off draggability, to allow widgets to do
+				// normal dragging things.
+				display.scroller.draggable = false;
+				setTimeout(function () { return display.scroller.draggable = true; }, 100);
+			}
+			return
+		}
+		if (clickInGutter(cm, e)) { return }
+		var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
+		window.focus();
+
+		// #3261: make sure, that we're not starting a second selection
+		if (button == 1 && cm.state.selectingText)
+			{ cm.state.selectingText(e); }
+
+		if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }
+
+		if (button == 1) {
+			if (pos) { leftButtonDown(cm, pos, repeat, e); }
+			else if (e_target(e) == display.scroller) { e_preventDefault(e); }
+		} else if (button == 2) {
+			if (pos) { extendSelection(cm.doc, pos); }
+			setTimeout(function () { return display.input.focus(); }, 20);
+		} else if (button == 3) {
+			if (captureRightClick) { cm.display.input.onContextMenu(e); }
+			else { delayBlurEvent(cm); }
+		}
+	}
+
+	function handleMappedButton(cm, button, pos, repeat, event) {
+		var name = "Click";
+		if (repeat == "double") { name = "Double" + name; }
+		else if (repeat == "triple") { name = "Triple" + name; }
+		name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;
+
+		return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {
+			if (typeof bound == "string") { bound = commands[bound]; }
+			if (!bound) { return false }
+			var done = false;
+			try {
+				if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
+				done = bound(cm, pos) != Pass;
+			} finally {
+				cm.state.suppressEdits = false;
+			}
+			return done
+		})
+	}
+
+	function configureMouse(cm, repeat, event) {
+		var option = cm.getOption("configureMouse");
+		var value = option ? option(cm, repeat, event) : {};
+		if (value.unit == null) {
+			var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
+			value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
+		}
+		if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
+		if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
+		if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
+		return value
+	}
+
+	function leftButtonDown(cm, pos, repeat, event) {
+		if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
+		else { cm.curOp.focus = activeElt(); }
+
+		var behavior = configureMouse(cm, repeat, event);
+
+		var sel = cm.doc.sel, contained;
+		if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
+				repeat == "single" && (contained = sel.contains(pos)) > -1 &&
+				(cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
+				(cmp(contained.to(), pos) > 0 || pos.xRel < 0))
+			{ leftButtonStartDrag(cm, event, pos, behavior); }
+		else
+			{ leftButtonSelect(cm, event, pos, behavior); }
+	}
+
+	// Start a text drag. When it ends, see if any dragging actually
+	// happen, and treat as a click if it didn't.
+	function leftButtonStartDrag(cm, event, pos, behavior) {
+		var display = cm.display, moved = false;
+		var dragEnd = operation(cm, function (e) {
+			if (webkit) { display.scroller.draggable = false; }
+			cm.state.draggingText = false;
+			off(display.wrapper.ownerDocument, "mouseup", dragEnd);
+			off(display.wrapper.ownerDocument, "mousemove", mouseMove);
+			off(display.scroller, "dragstart", dragStart);
+			off(display.scroller, "drop", dragEnd);
+			if (!moved) {
+				e_preventDefault(e);
+				if (!behavior.addNew)
+					{ extendSelection(cm.doc, pos, null, null, behavior.extend); }
+				// Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+				if (webkit || ie && ie_version == 9)
+					{ setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); }
+				else
+					{ display.input.focus(); }
+			}
+		});
+		var mouseMove = function(e2) {
+			moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
+		};
+		var dragStart = function () { return moved = true; };
+		// Let the drag handler handle this.
+		if (webkit) { display.scroller.draggable = true; }
+		cm.state.draggingText = dragEnd;
+		dragEnd.copy = !behavior.moveOnDrag;
+		// IE's approach to draggable
+		if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
+		on(display.wrapper.ownerDocument, "mouseup", dragEnd);
+		on(display.wrapper.ownerDocument, "mousemove", mouseMove);
+		on(display.scroller, "dragstart", dragStart);
+		on(display.scroller, "drop", dragEnd);
+
+		delayBlurEvent(cm);
+		setTimeout(function () { return display.input.focus(); }, 20);
+	}
+
+	function rangeForUnit(cm, pos, unit) {
+		if (unit == "char") { return new Range(pos, pos) }
+		if (unit == "word") { return cm.findWordAt(pos) }
+		if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
+		var result = unit(cm, pos);
+		return new Range(result.from, result.to)
+	}
+
+	// Normal selection, as opposed to text dragging.
+	function leftButtonSelect(cm, event, start, behavior) {
+		var display = cm.display, doc = cm.doc;
+		e_preventDefault(event);
+
+		var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
+		if (behavior.addNew && !behavior.extend) {
+			ourIndex = doc.sel.contains(start);
+			if (ourIndex > -1)
+				{ ourRange = ranges[ourIndex]; }
+			else
+				{ ourRange = new Range(start, start); }
+		} else {
+			ourRange = doc.sel.primary();
+			ourIndex = doc.sel.primIndex;
+		}
+
+		if (behavior.unit == "rectangle") {
+			if (!behavior.addNew) { ourRange = new Range(start, start); }
+			start = posFromMouse(cm, event, true, true);
+			ourIndex = -1;
+		} else {
+			var range$$1 = rangeForUnit(cm, start, behavior.unit);
+			if (behavior.extend)
+				{ ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); }
+			else
+				{ ourRange = range$$1; }
+		}
+
+		if (!behavior.addNew) {
+			ourIndex = 0;
+			setSelection(doc, new Selection([ourRange], 0), sel_mouse);
+			startSel = doc.sel;
+		} else if (ourIndex == -1) {
+			ourIndex = ranges.length;
+			setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
+									 {scroll: false, origin: "*mouse"});
+		} else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
+			setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+									 {scroll: false, origin: "*mouse"});
+			startSel = doc.sel;
+		} else {
+			replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
+		}
+
+		var lastPos = start;
+		function extendTo(pos) {
+			if (cmp(lastPos, pos) == 0) { return }
+			lastPos = pos;
+
+			if (behavior.unit == "rectangle") {
+				var ranges = [], tabSize = cm.options.tabSize;
+				var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
+				var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
+				var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
+				for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+						 line <= end; line++) {
+					var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
+					if (left == right)
+						{ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
+					else if (text.length > leftPos)
+						{ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
+				}
+				if (!ranges.length) { ranges.push(new Range(start, start)); }
+				setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+										 {origin: "*mouse", scroll: false});
+				cm.scrollIntoView(pos);
+			} else {
+				var oldRange = ourRange;
+				var range$$1 = rangeForUnit(cm, pos, behavior.unit);
+				var anchor = oldRange.anchor, head;
+				if (cmp(range$$1.anchor, anchor) > 0) {
+					head = range$$1.head;
+					anchor = minPos(oldRange.from(), range$$1.anchor);
+				} else {
+					head = range$$1.anchor;
+					anchor = maxPos(oldRange.to(), range$$1.head);
+				}
+				var ranges$1 = startSel.ranges.slice(0);
+				ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
+				setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
+			}
+		}
+
+		var editorSize = display.wrapper.getBoundingClientRect();
+		// Used to ensure timeout re-tries don't fire when another extend
+		// happened in the meantime (clearTimeout isn't reliable -- at
+		// least on Chrome, the timeouts still happen even when cleared,
+		// if the clear happens after their scheduled firing time).
+		var counter = 0;
+
+		function extend(e) {
+			var curCount = ++counter;
+			var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
+			if (!cur) { return }
+			if (cmp(cur, lastPos) != 0) {
+				cm.curOp.focus = activeElt();
+				extendTo(cur);
+				var visible = visibleLines(display, doc);
+				if (cur.line >= visible.to || cur.line < visible.from)
+					{ setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
+			} else {
+				var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
+				if (outside) { setTimeout(operation(cm, function () {
+					if (counter != curCount) { return }
+					display.scroller.scrollTop += outside;
+					extend(e);
+				}), 50); }
+			}
+		}
+
+		function done(e) {
+			cm.state.selectingText = false;
+			counter = Infinity;
+			// If e is null or undefined we interpret this as someone trying
+			// to explicitly cancel the selection rather than the user
+			// letting go of the mouse button.
+			if (e) {
+				e_preventDefault(e);
+				display.input.focus();
+			}
+			off(display.wrapper.ownerDocument, "mousemove", move);
+			off(display.wrapper.ownerDocument, "mouseup", up);
+			doc.history.lastSelOrigin = null;
+		}
+
+		var move = operation(cm, function (e) {
+			if (e.buttons === 0 || !e_button(e)) { done(e); }
+			else { extend(e); }
+		});
+		var up = operation(cm, done);
+		cm.state.selectingText = up;
+		on(display.wrapper.ownerDocument, "mousemove", move);
+		on(display.wrapper.ownerDocument, "mouseup", up);
+	}
+
+	// Used when mouse-selecting to adjust the anchor to the proper side
+	// of a bidi jump depending on the visual position of the head.
+	function bidiSimplify(cm, range$$1) {
+		var anchor = range$$1.anchor;
+		var head = range$$1.head;
+		var anchorLine = getLine(cm.doc, anchor.line);
+		if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range$$1 }
+		var order = getOrder(anchorLine);
+		if (!order) { return range$$1 }
+		var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
+		if (part.from != anchor.ch && part.to != anchor.ch) { return range$$1 }
+		var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
+		if (boundary == 0 || boundary == order.length) { return range$$1 }
+
+		// Compute the relative visual position of the head compared to the
+		// anchor (<0 is to the left, >0 to the right)
+		var leftSide;
+		if (head.line != anchor.line) {
+			leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
+		} else {
+			var headIndex = getBidiPartAt(order, head.ch, head.sticky);
+			var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
+			if (headIndex == boundary - 1 || headIndex == boundary)
+				{ leftSide = dir < 0; }
+			else
+				{ leftSide = dir > 0; }
+		}
+
+		var usePart = order[boundary + (leftSide ? -1 : 0)];
+		var from = leftSide == (usePart.level == 1);
+		var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
+		return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head)
+	}
+
+
+	// Determines whether an event happened in the gutter, and fires the
+	// handlers for the corresponding event.
+	function gutterEvent(cm, e, type, prevent) {
+		var mX, mY;
+		if (e.touches) {
+			mX = e.touches[0].clientX;
+			mY = e.touches[0].clientY;
+		} else {
+			try { mX = e.clientX; mY = e.clientY; }
+			catch(e) { return false }
+		}
+		if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
+		if (prevent) { e_preventDefault(e); }
+
+		var display = cm.display;
+		var lineBox = display.lineDiv.getBoundingClientRect();
+
+		if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
+		mY -= lineBox.top - display.viewOffset;
+
+		for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
+			var g = display.gutters.childNodes[i];
+			if (g && g.getBoundingClientRect().right >= mX) {
+				var line = lineAtHeight(cm.doc, mY);
+				var gutter = cm.display.gutterSpecs[i];
+				signal(cm, type, cm, line, gutter.className, e);
+				return e_defaultPrevented(e)
+			}
+		}
+	}
+
+	function clickInGutter(cm, e) {
+		return gutterEvent(cm, e, "gutterClick", true)
+	}
+
+	// CONTEXT MENU HANDLING
+
+	// To make the context menu work, we need to briefly unhide the
+	// textarea (making it as unobtrusive as possible) to let the
+	// right-click take effect on it.
+	function onContextMenu(cm, e) {
+		if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
+		if (signalDOMEvent(cm, e, "contextmenu")) { return }
+		if (!captureRightClick) { cm.display.input.onContextMenu(e); }
+	}
+
+	function contextMenuInGutter(cm, e) {
+		if (!hasHandler(cm, "gutterContextMenu")) { return false }
+		return gutterEvent(cm, e, "gutterContextMenu", false)
+	}
+
+	function themeChanged(cm) {
+		cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+			cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+		clearCaches(cm);
+	}
+
+	var Init = {toString: function(){return "CodeMirror.Init"}};
+
+	var defaults = {};
+	var optionHandlers = {};
+
+	function defineOptions(CodeMirror) {
+		var optionHandlers = CodeMirror.optionHandlers;
+
+		function option(name, deflt, handle, notOnInit) {
+			CodeMirror.defaults[name] = deflt;
+			if (handle) { optionHandlers[name] =
+				notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
+		}
+
+		CodeMirror.defineOption = option;
+
+		// Passed to option handlers when there is no old value.
+		CodeMirror.Init = Init;
+
+		// These two are, on init, called from the constructor because they
+		// have to be initialized before the editor can start at all.
+		option("value", "", function (cm, val) { return cm.setValue(val); }, true);
+		option("mode", null, function (cm, val) {
+			cm.doc.modeOption = val;
+			loadMode(cm);
+		}, true);
+
+		option("indentUnit", 2, loadMode, true);
+		option("indentWithTabs", false);
+		option("smartIndent", true);
+		option("tabSize", 4, function (cm) {
+			resetModeState(cm);
+			clearCaches(cm);
+			regChange(cm);
+		}, true);
+
+		option("lineSeparator", null, function (cm, val) {
+			cm.doc.lineSep = val;
+			if (!val) { return }
+			var newBreaks = [], lineNo = cm.doc.first;
+			cm.doc.iter(function (line) {
+				for (var pos = 0;;) {
+					var found = line.text.indexOf(val, pos);
+					if (found == -1) { break }
+					pos = found + val.length;
+					newBreaks.push(Pos(lineNo, found));
+				}
+				lineNo++;
+			});
+			for (var i = newBreaks.length - 1; i >= 0; i--)
+				{ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
+		});
+		option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
+			cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
+			if (old != Init) { cm.refresh(); }
+		});
+		option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
+		option("electricChars", true);
+		option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
+			throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
+		}, true);
+		option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
+		option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
+		option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
+		option("rtlMoveVisually", !windows);
+		option("wholeLineUpdateBefore", true);
+
+		option("theme", "default", function (cm) {
+			themeChanged(cm);
+			updateGutters(cm);
+		}, true);
+		option("keyMap", "default", function (cm, val, old) {
+			var next = getKeyMap(val);
+			var prev = old != Init && getKeyMap(old);
+			if (prev && prev.detach) { prev.detach(cm, next); }
+			if (next.attach) { next.attach(cm, prev || null); }
+		});
+		option("extraKeys", null);
+		option("configureMouse", null);
+
+		option("lineWrapping", false, wrappingChanged, true);
+		option("gutters", [], function (cm, val) {
+			cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
+			updateGutters(cm);
+		}, true);
+		option("fixedGutter", true, function (cm, val) {
+			cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
+			cm.refresh();
+		}, true);
+		option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
+		option("scrollbarStyle", "native", function (cm) {
+			initScrollbars(cm);
+			updateScrollbars(cm);
+			cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
+			cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
+		}, true);
+		option("lineNumbers", false, function (cm, val) {
+			cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
+			updateGutters(cm);
+		}, true);
+		option("firstLineNumber", 1, updateGutters, true);
+		option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
+		option("showCursorWhenSelecting", false, updateSelection, true);
+
+		option("resetSelectionOnContextMenu", true);
+		option("lineWiseCopyCut", true);
+		option("pasteLinesPerSelection", true);
+		option("selectionsMayTouch", false);
+
+		option("readOnly", false, function (cm, val) {
+			if (val == "nocursor") {
+				onBlur(cm);
+				cm.display.input.blur();
+			}
+			cm.display.input.readOnlyChanged(val);
+		});
+		option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
+		option("dragDrop", true, dragDropChanged);
+		option("allowDropFileTypes", null);
+
+		option("cursorBlinkRate", 530);
+		option("cursorScrollMargin", 0);
+		option("cursorHeight", 1, updateSelection, true);
+		option("singleCursorHeightPerLine", true, updateSelection, true);
+		option("workTime", 100);
+		option("workDelay", 100);
+		option("flattenSpans", true, resetModeState, true);
+		option("addModeClass", false, resetModeState, true);
+		option("pollInterval", 100);
+		option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
+		option("historyEventDelay", 1250);
+		option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
+		option("maxHighlightLength", 10000, resetModeState, true);
+		option("moveInputWithCursor", true, function (cm, val) {
+			if (!val) { cm.display.input.resetPosition(); }
+		});
+
+		option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
+		option("autofocus", null);
+		option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
+		option("phrases", null);
+	}
+
+	function dragDropChanged(cm, value, old) {
+		var wasOn = old && old != Init;
+		if (!value != !wasOn) {
+			var funcs = cm.display.dragFunctions;
+			var toggle = value ? on : off;
+			toggle(cm.display.scroller, "dragstart", funcs.start);
+			toggle(cm.display.scroller, "dragenter", funcs.enter);
+			toggle(cm.display.scroller, "dragover", funcs.over);
+			toggle(cm.display.scroller, "dragleave", funcs.leave);
+			toggle(cm.display.scroller, "drop", funcs.drop);
+		}
+	}
+
+	function wrappingChanged(cm) {
+		if (cm.options.lineWrapping) {
+			addClass(cm.display.wrapper, "CodeMirror-wrap");
+			cm.display.sizer.style.minWidth = "";
+			cm.display.sizerWidth = null;
+		} else {
+			rmClass(cm.display.wrapper, "CodeMirror-wrap");
+			findMaxLine(cm);
+		}
+		estimateLineHeights(cm);
+		regChange(cm);
+		clearCaches(cm);
+		setTimeout(function () { return updateScrollbars(cm); }, 100);
+	}
+
+	// A CodeMirror instance represents an editor. This is the object
+	// that user code is usually dealing with.
+
+	function CodeMirror(place, options) {
+		var this$1 = this;
+
+		if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }
+
+		this.options = options = options ? copyObj(options) : {};
+		// Determine effective options based on given values and defaults.
+		copyObj(defaults, options, false);
+
+		var doc = options.value;
+		if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
+		else if (options.mode) { doc.modeOption = options.mode; }
+		this.doc = doc;
+
+		var input = new CodeMirror.inputStyles[options.inputStyle](this);
+		var display = this.display = new Display(place, doc, input, options);
+		display.wrapper.CodeMirror = this;
+		themeChanged(this);
+		if (options.lineWrapping)
+			{ this.display.wrapper.className += " CodeMirror-wrap"; }
+		initScrollbars(this);
+
+		this.state = {
+			keyMaps: [],  // stores maps added by addKeyMap
+			overlays: [], // highlighting overlays, as added by addOverlay
+			modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
+			overwrite: false,
+			delayingBlurEvent: false,
+			focused: false,
+			suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+			pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
+			selectingText: false,
+			draggingText: false,
+			highlight: new Delayed(), // stores highlight worker timeout
+			keySeq: null,  // Unfinished key sequence
+			specialChars: null
+		};
+
+		if (options.autofocus && !mobile) { display.input.focus(); }
+
+		// Override magic textarea content restore that IE sometimes does
+		// on our hidden textarea on reload
+		if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }
+
+		registerEventHandlers(this);
+		ensureGlobalHandlers();
+
+		startOperation(this);
+		this.curOp.forceUpdate = true;
+		attachDoc(this, doc);
+
+		if ((options.autofocus && !mobile) || this.hasFocus())
+			{ setTimeout(bind(onFocus, this), 20); }
+		else
+			{ onBlur(this); }
+
+		for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
+			{ optionHandlers[opt](this$1, options[opt], Init); } }
+		maybeUpdateLineNumberWidth(this);
+		if (options.finishInit) { options.finishInit(this); }
+		for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); }
+		endOperation(this);
+		// Suppress optimizelegibility in Webkit, since it breaks text
+		// measuring on line wrapping boundaries.
+		if (webkit && options.lineWrapping &&
+				getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+			{ display.lineDiv.style.textRendering = "auto"; }
+	}
+
+	// The default configuration options.
+	CodeMirror.defaults = defaults;
+	// Functions to run when options are changed.
+	CodeMirror.optionHandlers = optionHandlers;
+
+	// Attach the necessary event handlers when initializing the editor
+	function registerEventHandlers(cm) {
+		var d = cm.display;
+		on(d.scroller, "mousedown", operation(cm, onMouseDown));
+		// Older IE's will not fire a second mousedown for a double click
+		if (ie && ie_version < 11)
+			{ on(d.scroller, "dblclick", operation(cm, function (e) {
+				if (signalDOMEvent(cm, e)) { return }
+				var pos = posFromMouse(cm, e);
+				if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
+				e_preventDefault(e);
+				var word = cm.findWordAt(pos);
+				extendSelection(cm.doc, word.anchor, word.head);
+			})); }
+		else
+			{ on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
+		// Some browsers fire contextmenu *after* opening the menu, at
+		// which point we can't mess with it anymore. Context menu is
+		// handled in onMouseDown for these browsers.
+		on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
+
+		// Used to suppress mouse event handling when a touch happens
+		var touchFinished, prevTouch = {end: 0};
+		function finishTouch() {
+			if (d.activeTouch) {
+				touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
+				prevTouch = d.activeTouch;
+				prevTouch.end = +new Date;
+			}
+		}
+		function isMouseLikeTouchEvent(e) {
+			if (e.touches.length != 1) { return false }
+			var touch = e.touches[0];
+			return touch.radiusX <= 1 && touch.radiusY <= 1
+		}
+		function farAway(touch, other) {
+			if (other.left == null) { return true }
+			var dx = other.left - touch.left, dy = other.top - touch.top;
+			return dx * dx + dy * dy > 20 * 20
+		}
+		on(d.scroller, "touchstart", function (e) {
+			if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
+				d.input.ensurePolled();
+				clearTimeout(touchFinished);
+				var now = +new Date;
+				d.activeTouch = {start: now, moved: false,
+												 prev: now - prevTouch.end <= 300 ? prevTouch : null};
+				if (e.touches.length == 1) {
+					d.activeTouch.left = e.touches[0].pageX;
+					d.activeTouch.top = e.touches[0].pageY;
+				}
+			}
+		});
+		on(d.scroller, "touchmove", function () {
+			if (d.activeTouch) { d.activeTouch.moved = true; }
+		});
+		on(d.scroller, "touchend", function (e) {
+			var touch = d.activeTouch;
+			if (touch && !eventInWidget(d, e) && touch.left != null &&
+					!touch.moved && new Date - touch.start < 300) {
+				var pos = cm.coordsChar(d.activeTouch, "page"), range;
+				if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+					{ range = new Range(pos, pos); }
+				else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+					{ range = cm.findWordAt(pos); }
+				else // Triple tap
+					{ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
+				cm.setSelection(range.anchor, range.head);
+				cm.focus();
+				e_preventDefault(e);
+			}
+			finishTouch();
+		});
+		on(d.scroller, "touchcancel", finishTouch);
+
+		// Sync scrolling between fake scrollbars and real scrollable
+		// area, ensure viewport is updated when scrolling.
+		on(d.scroller, "scroll", function () {
+			if (d.scroller.clientHeight) {
+				updateScrollTop(cm, d.scroller.scrollTop);
+				setScrollLeft(cm, d.scroller.scrollLeft, true);
+				signal(cm, "scroll", cm);
+			}
+		});
+
+		// Listen to wheel events in order to try and update the viewport on time.
+		on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
+		on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });
+
+		// Prevent wrapper from ever scrolling
+		on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
+
+		d.dragFunctions = {
+			enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
+			over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
+			start: function (e) { return onDragStart(cm, e); },
+			drop: operation(cm, onDrop),
+			leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
+		};
+
+		var inp = d.input.getField();
+		on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
+		on(inp, "keydown", operation(cm, onKeyDown));
+		on(inp, "keypress", operation(cm, onKeyPress));
+		on(inp, "focus", function (e) { return onFocus(cm, e); });
+		on(inp, "blur", function (e) { return onBlur(cm, e); });
+	}
+
+	var initHooks = [];
+	CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };
+
+	// Indent the given line. The how parameter can be "smart",
+	// "add"/null, "subtract", or "prev". When aggressive is false
+	// (typically set to true for forced single-line indents), empty
+	// lines are not indented, and places where the mode returns Pass
+	// are left alone.
+	function indentLine(cm, n, how, aggressive) {
+		var doc = cm.doc, state;
+		if (how == null) { how = "add"; }
+		if (how == "smart") {
+			// Fall back to "prev" when the mode doesn't have an indentation
+			// method.
+			if (!doc.mode.indent) { how = "prev"; }
+			else { state = getContextBefore(cm, n).state; }
+		}
+
+		var tabSize = cm.options.tabSize;
+		var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
+		if (line.stateAfter) { line.stateAfter = null; }
+		var curSpaceString = line.text.match(/^\s*/)[0], indentation;
+		if (!aggressive && !/\S/.test(line.text)) {
+			indentation = 0;
+			how = "not";
+		} else if (how == "smart") {
+			indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+			if (indentation == Pass || indentation > 150) {
+				if (!aggressive) { return }
+				how = "prev";
+			}
+		}
+		if (how == "prev") {
+			if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
+			else { indentation = 0; }
+		} else if (how == "add") {
+			indentation = curSpace + cm.options.indentUnit;
+		} else if (how == "subtract") {
+			indentation = curSpace - cm.options.indentUnit;
+		} else if (typeof how == "number") {
+			indentation = curSpace + how;
+		}
+		indentation = Math.max(0, indentation);
+
+		var indentString = "", pos = 0;
+		if (cm.options.indentWithTabs)
+			{ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
+		if (pos < indentation) { indentString += spaceStr(indentation - pos); }
+
+		if (indentString != curSpaceString) {
+			replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
+			line.stateAfter = null;
+			return true
+		} else {
+			// Ensure that, if the cursor was in the whitespace at the start
+			// of the line, it is moved to the end of that space.
+			for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
+				var range = doc.sel.ranges[i$1];
+				if (range.head.line == n && range.head.ch < curSpaceString.length) {
+					var pos$1 = Pos(n, curSpaceString.length);
+					replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
+					break
+				}
+			}
+		}
+	}
+
+	// This will be set to a {lineWise: bool, text: [string]} object, so
+	// that, when pasting, we know what kind of selections the copied
+	// text was made out of.
+	var lastCopied = null;
+
+	function setLastCopied(newLastCopied) {
+		lastCopied = newLastCopied;
+	}
+
+	function applyTextInput(cm, inserted, deleted, sel, origin) {
+		var doc = cm.doc;
+		cm.display.shift = false;
+		if (!sel) { sel = doc.sel; }
+
+		var recent = +new Date - 200;
+		var paste = origin == "paste" || cm.state.pasteIncoming > recent;
+		var textLines = splitLinesAuto(inserted), multiPaste = null;
+		// When pasting N lines into N selections, insert one line per selection
+		if (paste && sel.ranges.length > 1) {
+			if (lastCopied && lastCopied.text.join("\n") == inserted) {
+				if (sel.ranges.length % lastCopied.text.length == 0) {
+					multiPaste = [];
+					for (var i = 0; i < lastCopied.text.length; i++)
+						{ multiPaste.push(doc.splitLines(lastCopied.text[i])); }
+				}
+			} else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
+				multiPaste = map(textLines, function (l) { return [l]; });
+			}
+		}
+
+		var updateInput = cm.curOp.updateInput;
+		// Normal behavior is to insert the new text into every selection
+		for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
+			var range$$1 = sel.ranges[i$1];
+			var from = range$$1.from(), to = range$$1.to();
+			if (range$$1.empty()) {
+				if (deleted && deleted > 0) // Handle deletion
+					{ from = Pos(from.line, from.ch - deleted); }
+				else if (cm.state.overwrite && !paste) // Handle overwrite
+					{ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
+				else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
+					{ from = to = Pos(from.line, 0); }
+			}
+			var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
+												 origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")};
+			makeChange(cm.doc, changeEvent);
+			signalLater(cm, "inputRead", cm, changeEvent);
+		}
+		if (inserted && !paste)
+			{ triggerElectric(cm, inserted); }
+
+		ensureCursorVisible(cm);
+		if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
+		cm.curOp.typing = true;
+		cm.state.pasteIncoming = cm.state.cutIncoming = -1;
+	}
+
+	function handlePaste(e, cm) {
+		var pasted = e.clipboardData && e.clipboardData.getData("Text");
+		if (pasted) {
+			e.preventDefault();
+			if (!cm.isReadOnly() && !cm.options.disableInput)
+				{ runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
+			return true
+		}
+	}
+
+	function triggerElectric(cm, inserted) {
+		// When an 'electric' character is inserted, immediately trigger a reindent
+		if (!cm.options.electricChars || !cm.options.smartIndent) { return }
+		var sel = cm.doc.sel;
+
+		for (var i = sel.ranges.length - 1; i >= 0; i--) {
+			var range$$1 = sel.ranges[i];
+			if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue }
+			var mode = cm.getModeAt(range$$1.head);
+			var indented = false;
+			if (mode.electricChars) {
+				for (var j = 0; j < mode.electricChars.length; j++)
+					{ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+						indented = indentLine(cm, range$$1.head.line, "smart");
+						break
+					} }
+			} else if (mode.electricInput) {
+				if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch)))
+					{ indented = indentLine(cm, range$$1.head.line, "smart"); }
+			}
+			if (indented) { signalLater(cm, "electricInput", cm, range$$1.head.line); }
+		}
+	}
+
+	function copyableRanges(cm) {
+		var text = [], ranges = [];
+		for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+			var line = cm.doc.sel.ranges[i].head.line;
+			var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
+			ranges.push(lineRange);
+			text.push(cm.getRange(lineRange.anchor, lineRange.head));
+		}
+		return {text: text, ranges: ranges}
+	}
+
+	function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
+		field.setAttribute("autocorrect", autocorrect ? "" : "off");
+		field.setAttribute("autocapitalize", autocapitalize ? "" : "off");
+		field.setAttribute("spellcheck", !!spellcheck);
+	}
+
+	function hiddenTextarea() {
+		var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none");
+		var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
+		// The textarea is kept positioned near the cursor to prevent the
+		// fact that it'll be scrolled into view on input from scrolling
+		// our fake cursor out of view. On webkit, when wrap=off, paste is
+		// very slow. So make the area wide instead.
+		if (webkit) { te.style.width = "1000px"; }
+		else { te.setAttribute("wrap", "off"); }
+		// If border: 0; -- iOS fails to open keyboard (issue #1287)
+		if (ios) { te.style.border = "1px solid black"; }
+		disableBrowserMagic(te);
+		return div
+	}
+
+	// The publicly visible API. Note that methodOp(f) means
+	// 'wrap f in an operation, performed on its `this` parameter'.
+
+	// This is not the complete set of editor methods. Most of the
+	// methods defined on the Doc type are also injected into
+	// CodeMirror.prototype, for backwards compatibility and
+	// convenience.
+
+	function addEditorMethods(CodeMirror) {
+		var optionHandlers = CodeMirror.optionHandlers;
+
+		var helpers = CodeMirror.helpers = {};
+
+		CodeMirror.prototype = {
+			constructor: CodeMirror,
+			focus: function(){window.focus(); this.display.input.focus();},
+
+			setOption: function(option, value) {
+				var options = this.options, old = options[option];
+				if (options[option] == value && option != "mode") { return }
+				options[option] = value;
+				if (optionHandlers.hasOwnProperty(option))
+					{ operation(this, optionHandlers[option])(this, value, old); }
+				signal(this, "optionChange", this, option);
+			},
+
+			getOption: function(option) {return this.options[option]},
+			getDoc: function() {return this.doc},
+
+			addKeyMap: function(map$$1, bottom) {
+				this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1));
+			},
+			removeKeyMap: function(map$$1) {
+				var maps = this.state.keyMaps;
+				for (var i = 0; i < maps.length; ++i)
+					{ if (maps[i] == map$$1 || maps[i].name == map$$1) {
+						maps.splice(i, 1);
+						return true
+					} }
+			},
+
+			addOverlay: methodOp(function(spec, options) {
+				var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
+				if (mode.startState) { throw new Error("Overlays may not be stateful.") }
+				insertSorted(this.state.overlays,
+										 {mode: mode, modeSpec: spec, opaque: options && options.opaque,
+											priority: (options && options.priority) || 0},
+										 function (overlay) { return overlay.priority; });
+				this.state.modeGen++;
+				regChange(this);
+			}),
+			removeOverlay: methodOp(function(spec) {
+				var this$1 = this;
+
+				var overlays = this.state.overlays;
+				for (var i = 0; i < overlays.length; ++i) {
+					var cur = overlays[i].modeSpec;
+					if (cur == spec || typeof spec == "string" && cur.name == spec) {
+						overlays.splice(i, 1);
+						this$1.state.modeGen++;
+						regChange(this$1);
+						return
+					}
+				}
+			}),
+
+			indentLine: methodOp(function(n, dir, aggressive) {
+				if (typeof dir != "string" && typeof dir != "number") {
+					if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
+					else { dir = dir ? "add" : "subtract"; }
+				}
+				if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
+			}),
+			indentSelection: methodOp(function(how) {
+				var this$1 = this;
+
+				var ranges = this.doc.sel.ranges, end = -1;
+				for (var i = 0; i < ranges.length; i++) {
+					var range$$1 = ranges[i];
+					if (!range$$1.empty()) {
+						var from = range$$1.from(), to = range$$1.to();
+						var start = Math.max(end, from.line);
+						end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+						for (var j = start; j < end; ++j)
+							{ indentLine(this$1, j, how); }
+						var newRanges = this$1.doc.sel.ranges;
+						if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+							{ replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
+					} else if (range$$1.head.line > end) {
+						indentLine(this$1, range$$1.head.line, how, true);
+						end = range$$1.head.line;
+						if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); }
+					}
+				}
+			}),
+
+			// Fetch the parser token for a given character. Useful for hacks
+			// that want to inspect the mode state (say, for completion).
+			getTokenAt: function(pos, precise) {
+				return takeToken(this, pos, precise)
+			},
+
+			getLineTokens: function(line, precise) {
+				return takeToken(this, Pos(line), precise, true)
+			},
+
+			getTokenTypeAt: function(pos) {
+				pos = clipPos(this.doc, pos);
+				var styles = getLineStyles(this, getLine(this.doc, pos.line));
+				var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
+				var type;
+				if (ch == 0) { type = styles[2]; }
+				else { for (;;) {
+					var mid = (before + after) >> 1;
+					if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
+					else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
+					else { type = styles[mid * 2 + 2]; break }
+				} }
+				var cut = type ? type.indexOf("overlay ") : -1;
+				return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
+			},
+
+			getModeAt: function(pos) {
+				var mode = this.doc.mode;
+				if (!mode.innerMode) { return mode }
+				return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
+			},
+
+			getHelper: function(pos, type) {
+				return this.getHelpers(pos, type)[0]
+			},
+
+			getHelpers: function(pos, type) {
+				var this$1 = this;
+
+				var found = [];
+				if (!helpers.hasOwnProperty(type)) { return found }
+				var help = helpers[type], mode = this.getModeAt(pos);
+				if (typeof mode[type] == "string") {
+					if (help[mode[type]]) { found.push(help[mode[type]]); }
+				} else if (mode[type]) {
+					for (var i = 0; i < mode[type].length; i++) {
+						var val = help[mode[type][i]];
+						if (val) { found.push(val); }
+					}
+				} else if (mode.helperType && help[mode.helperType]) {
+					found.push(help[mode.helperType]);
+				} else if (help[mode.name]) {
+					found.push(help[mode.name]);
+				}
+				for (var i$1 = 0; i$1 < help._global.length; i$1++) {
+					var cur = help._global[i$1];
+					if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)
+						{ found.push(cur.val); }
+				}
+				return found
+			},
+
+			getStateAfter: function(line, precise) {
+				var doc = this.doc;
+				line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
+				return getContextBefore(this, line + 1, precise).state
+			},
+
+			cursorCoords: function(start, mode) {
+				var pos, range$$1 = this.doc.sel.primary();
+				if (start == null) { pos = range$$1.head; }
+				else if (typeof start == "object") { pos = clipPos(this.doc, start); }
+				else { pos = start ? range$$1.from() : range$$1.to(); }
+				return cursorCoords(this, pos, mode || "page")
+			},
+
+			charCoords: function(pos, mode) {
+				return charCoords(this, clipPos(this.doc, pos), mode || "page")
+			},
+
+			coordsChar: function(coords, mode) {
+				coords = fromCoordSystem(this, coords, mode || "page");
+				return coordsChar(this, coords.left, coords.top)
+			},
+
+			lineAtHeight: function(height, mode) {
+				height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
+				return lineAtHeight(this.doc, height + this.display.viewOffset)
+			},
+			heightAtLine: function(line, mode, includeWidgets) {
+				var end = false, lineObj;
+				if (typeof line == "number") {
+					var last = this.doc.first + this.doc.size - 1;
+					if (line < this.doc.first) { line = this.doc.first; }
+					else if (line > last) { line = last; end = true; }
+					lineObj = getLine(this.doc, line);
+				} else {
+					lineObj = line;
+				}
+				return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
+					(end ? this.doc.height - heightAtLine(lineObj) : 0)
+			},
+
+			defaultTextHeight: function() { return textHeight(this.display) },
+			defaultCharWidth: function() { return charWidth(this.display) },
+
+			getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
+
+			addWidget: function(pos, node, scroll, vert, horiz) {
+				var display = this.display;
+				pos = cursorCoords(this, clipPos(this.doc, pos));
+				var top = pos.bottom, left = pos.left;
+				node.style.position = "absolute";
+				node.setAttribute("cm-ignore-events", "true");
+				this.display.input.setUneditable(node);
+				display.sizer.appendChild(node);
+				if (vert == "over") {
+					top = pos.top;
+				} else if (vert == "above" || vert == "near") {
+					var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+					hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
+					// Default to positioning above (if specified and possible); otherwise default to positioning below
+					if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+						{ top = pos.top - node.offsetHeight; }
+					else if (pos.bottom + node.offsetHeight <= vspace)
+						{ top = pos.bottom; }
+					if (left + node.offsetWidth > hspace)
+						{ left = hspace - node.offsetWidth; }
+				}
+				node.style.top = top + "px";
+				node.style.left = node.style.right = "";
+				if (horiz == "right") {
+					left = display.sizer.clientWidth - node.offsetWidth;
+					node.style.right = "0px";
+				} else {
+					if (horiz == "left") { left = 0; }
+					else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
+					node.style.left = left + "px";
+				}
+				if (scroll)
+					{ scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
+			},
+
+			triggerOnKeyDown: methodOp(onKeyDown),
+			triggerOnKeyPress: methodOp(onKeyPress),
+			triggerOnKeyUp: onKeyUp,
+			triggerOnMouseDown: methodOp(onMouseDown),
+
+			execCommand: function(cmd) {
+				if (commands.hasOwnProperty(cmd))
+					{ return commands[cmd].call(null, this) }
+			},
+
+			triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
+
+			findPosH: function(from, amount, unit, visually) {
+				var this$1 = this;
+
+				var dir = 1;
+				if (amount < 0) { dir = -1; amount = -amount; }
+				var cur = clipPos(this.doc, from);
+				for (var i = 0; i < amount; ++i) {
+					cur = findPosH(this$1.doc, cur, dir, unit, visually);
+					if (cur.hitSide) { break }
+				}
+				return cur
+			},
+
+			moveH: methodOp(function(dir, unit) {
+				var this$1 = this;
+
+				this.extendSelectionsBy(function (range$$1) {
+					if (this$1.display.shift || this$1.doc.extend || range$$1.empty())
+						{ return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) }
+					else
+						{ return dir < 0 ? range$$1.from() : range$$1.to() }
+				}, sel_move);
+			}),
+
+			deleteH: methodOp(function(dir, unit) {
+				var sel = this.doc.sel, doc = this.doc;
+				if (sel.somethingSelected())
+					{ doc.replaceSelection("", null, "+delete"); }
+				else
+					{ deleteNearSelection(this, function (range$$1) {
+						var other = findPosH(doc, range$$1.head, dir, unit, false);
+						return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other}
+					}); }
+			}),
+
+			findPosV: function(from, amount, unit, goalColumn) {
+				var this$1 = this;
+
+				var dir = 1, x = goalColumn;
+				if (amount < 0) { dir = -1; amount = -amount; }
+				var cur = clipPos(this.doc, from);
+				for (var i = 0; i < amount; ++i) {
+					var coords = cursorCoords(this$1, cur, "div");
+					if (x == null) { x = coords.left; }
+					else { coords.left = x; }
+					cur = findPosV(this$1, coords, dir, unit);
+					if (cur.hitSide) { break }
+				}
+				return cur
+			},
+
+			moveV: methodOp(function(dir, unit) {
+				var this$1 = this;
+
+				var doc = this.doc, goals = [];
+				var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
+				doc.extendSelectionsBy(function (range$$1) {
+					if (collapse)
+						{ return dir < 0 ? range$$1.from() : range$$1.to() }
+					var headPos = cursorCoords(this$1, range$$1.head, "div");
+					if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; }
+					goals.push(headPos.left);
+					var pos = findPosV(this$1, headPos, dir, unit);
+					if (unit == "page" && range$$1 == doc.sel.primary())
+						{ addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
+					return pos
+				}, sel_move);
+				if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
+					{ doc.sel.ranges[i].goalColumn = goals[i]; } }
+			}),
+
+			// Find the word at the given position (as returned by coordsChar).
+			findWordAt: function(pos) {
+				var doc = this.doc, line = getLine(doc, pos.line).text;
+				var start = pos.ch, end = pos.ch;
+				if (line) {
+					var helper = this.getHelper(pos, "wordChars");
+					if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
+					var startChar = line.charAt(start);
+					var check = isWordChar(startChar, helper)
+						? function (ch) { return isWordChar(ch, helper); }
+						: /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
+						: function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
+					while (start > 0 && check(line.charAt(start - 1))) { --start; }
+					while (end < line.length && check(line.charAt(end))) { ++end; }
+				}
+				return new Range(Pos(pos.line, start), Pos(pos.line, end))
+			},
+
+			toggleOverwrite: function(value) {
+				if (value != null && value == this.state.overwrite) { return }
+				if (this.state.overwrite = !this.state.overwrite)
+					{ addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
+				else
+					{ rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
+
+				signal(this, "overwriteToggle", this, this.state.overwrite);
+			},
+			hasFocus: function() { return this.display.input.getField() == activeElt() },
+			isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
+
+			scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
+			getScrollInfo: function() {
+				var scroller = this.display.scroller;
+				return {left: scroller.scrollLeft, top: scroller.scrollTop,
+								height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+								width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+								clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
+			},
+
+			scrollIntoView: methodOp(function(range$$1, margin) {
+				if (range$$1 == null) {
+					range$$1 = {from: this.doc.sel.primary().head, to: null};
+					if (margin == null) { margin = this.options.cursorScrollMargin; }
+				} else if (typeof range$$1 == "number") {
+					range$$1 = {from: Pos(range$$1, 0), to: null};
+				} else if (range$$1.from == null) {
+					range$$1 = {from: range$$1, to: null};
+				}
+				if (!range$$1.to) { range$$1.to = range$$1.from; }
+				range$$1.margin = margin || 0;
+
+				if (range$$1.from.line != null) {
+					scrollToRange(this, range$$1);
+				} else {
+					scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin);
+				}
+			}),
+
+			setSize: methodOp(function(width, height) {
+				var this$1 = this;
+
+				var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
+				if (width != null) { this.display.wrapper.style.width = interpret(width); }
+				if (height != null) { this.display.wrapper.style.height = interpret(height); }
+				if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
+				var lineNo$$1 = this.display.viewFrom;
+				this.doc.iter(lineNo$$1, this.display.viewTo, function (line) {
+					if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
+						{ if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, "widget"); break } } }
+					++lineNo$$1;
+				});
+				this.curOp.forceUpdate = true;
+				signal(this, "refresh", this);
+			}),
+
+			operation: function(f){return runInOp(this, f)},
+			startOperation: function(){return startOperation(this)},
+			endOperation: function(){return endOperation(this)},
+
+			refresh: methodOp(function() {
+				var oldHeight = this.display.cachedTextHeight;
+				regChange(this);
+				this.curOp.forceUpdate = true;
+				clearCaches(this);
+				scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
+				updateGutterSpace(this.display);
+				if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+					{ estimateLineHeights(this); }
+				signal(this, "refresh", this);
+			}),
+
+			swapDoc: methodOp(function(doc) {
+				var old = this.doc;
+				old.cm = null;
+				// Cancel the current text selection if any (#5821)
+				if (this.state.selectingText) { this.state.selectingText(); }
+				attachDoc(this, doc);
+				clearCaches(this);
+				this.display.input.reset();
+				scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
+				this.curOp.forceScroll = true;
+				signalLater(this, "swapDoc", this, old);
+				return old
+			}),
+
+			phrase: function(phraseText) {
+				var phrases = this.options.phrases;
+				return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
+			},
+
+			getInputField: function(){return this.display.input.getField()},
+			getWrapperElement: function(){return this.display.wrapper},
+			getScrollerElement: function(){return this.display.scroller},
+			getGutterElement: function(){return this.display.gutters}
+		};
+		eventMixin(CodeMirror);
+
+		CodeMirror.registerHelper = function(type, name, value) {
+			if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
+			helpers[type][name] = value;
+		};
+		CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+			CodeMirror.registerHelper(type, name, value);
+			helpers[type]._global.push({pred: predicate, val: value});
+		};
+	}
+
+	// Used for horizontal relative motion. Dir is -1 or 1 (left or
+	// right), unit can be "char", "column" (like char, but doesn't
+	// cross line boundaries), "word" (across next word), or "group" (to
+	// the start of next group of word or non-word-non-whitespace
+	// chars). The visually param controls whether, in right-to-left
+	// text, direction 1 means to move towards the next index in the
+	// string, or towards the character to the right of the current
+	// position. The resulting position will have a hitSide=true
+	// property if it reached the end of the document.
+	function findPosH(doc, pos, dir, unit, visually) {
+		var oldPos = pos;
+		var origDir = dir;
+		var lineObj = getLine(doc, pos.line);
+		function findNextLine() {
+			var l = pos.line + dir;
+			if (l < doc.first || l >= doc.first + doc.size) { return false }
+			pos = new Pos(l, pos.ch, pos.sticky);
+			return lineObj = getLine(doc, l)
+		}
+		function moveOnce(boundToLine) {
+			var next;
+			if (visually) {
+				next = moveVisually(doc.cm, lineObj, pos, dir);
+			} else {
+				next = moveLogically(lineObj, pos, dir);
+			}
+			if (next == null) {
+				if (!boundToLine && findNextLine())
+					{ pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); }
+				else
+					{ return false }
+			} else {
+				pos = next;
+			}
+			return true
+		}
+
+		if (unit == "char") {
+			moveOnce();
+		} else if (unit == "column") {
+			moveOnce(true);
+		} else if (unit == "word" || unit == "group") {
+			var sawType = null, group = unit == "group";
+			var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
+			for (var first = true;; first = false) {
+				if (dir < 0 && !moveOnce(!first)) { break }
+				var cur = lineObj.text.charAt(pos.ch) || "\n";
+				var type = isWordChar(cur, helper) ? "w"
+					: group && cur == "\n" ? "n"
+					: !group || /\s/.test(cur) ? null
+					: "p";
+				if (group && !first && !type) { type = "s"; }
+				if (sawType && sawType != type) {
+					if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
+					break
+				}
+
+				if (type) { sawType = type; }
+				if (dir > 0 && !moveOnce(!first)) { break }
+			}
+		}
+		var result = skipAtomic(doc, pos, oldPos, origDir, true);
+		if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
+		return result
+	}
+
+	// For relative vertical movement. Dir may be -1 or 1. Unit can be
+	// "page" or "line". The resulting position will have a hitSide=true
+	// property if it reached the end of the document.
+	function findPosV(cm, pos, dir, unit) {
+		var doc = cm.doc, x = pos.left, y;
+		if (unit == "page") {
+			var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+			var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
+			y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;
+
+		} else if (unit == "line") {
+			y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
+		}
+		var target;
+		for (;;) {
+			target = coordsChar(cm, x, y);
+			if (!target.outside) { break }
+			if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
+			y += dir * 5;
+		}
+		return target
+	}
+
+	// CONTENTEDITABLE INPUT STYLE
+
+	var ContentEditableInput = function(cm) {
+		this.cm = cm;
+		this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
+		this.polling = new Delayed();
+		this.composing = null;
+		this.gracePeriod = false;
+		this.readDOMTimeout = null;
+	};
+
+	ContentEditableInput.prototype.init = function (display) {
+			var this$1 = this;
+
+		var input = this, cm = input.cm;
+		var div = input.div = display.lineDiv;
+		disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);
+
+		on(div, "paste", function (e) {
+			if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+			// IE doesn't fire input events, so we schedule a read for the pasted content in this way
+			if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
+		});
+
+		on(div, "compositionstart", function (e) {
+			this$1.composing = {data: e.data, done: false};
+		});
+		on(div, "compositionupdate", function (e) {
+			if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
+		});
+		on(div, "compositionend", function (e) {
+			if (this$1.composing) {
+				if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
+				this$1.composing.done = true;
+			}
+		});
+
+		on(div, "touchstart", function () { return input.forceCompositionEnd(); });
+
+		on(div, "input", function () {
+			if (!this$1.composing) { this$1.readFromDOMSoon(); }
+		});
+
+		function onCopyCut(e) {
+			if (signalDOMEvent(cm, e)) { return }
+			if (cm.somethingSelected()) {
+				setLastCopied({lineWise: false, text: cm.getSelections()});
+				if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
+			} else if (!cm.options.lineWiseCopyCut) {
+				return
+			} else {
+				var ranges = copyableRanges(cm);
+				setLastCopied({lineWise: true, text: ranges.text});
+				if (e.type == "cut") {
+					cm.operation(function () {
+						cm.setSelections(ranges.ranges, 0, sel_dontScroll);
+						cm.replaceSelection("", null, "cut");
+					});
+				}
+			}
+			if (e.clipboardData) {
+				e.clipboardData.clearData();
+				var content = lastCopied.text.join("\n");
+				// iOS exposes the clipboard API, but seems to discard content inserted into it
+				e.clipboardData.setData("Text", content);
+				if (e.clipboardData.getData("Text") == content) {
+					e.preventDefault();
+					return
+				}
+			}
+			// Old-fashioned briefly-focus-a-textarea hack
+			var kludge = hiddenTextarea(), te = kludge.firstChild;
+			cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
+			te.value = lastCopied.text.join("\n");
+			var hadFocus = document.activeElement;
+			selectInput(te);
+			setTimeout(function () {
+				cm.display.lineSpace.removeChild(kludge);
+				hadFocus.focus();
+				if (hadFocus == div) { input.showPrimarySelection(); }
+			}, 50);
+		}
+		on(div, "copy", onCopyCut);
+		on(div, "cut", onCopyCut);
+	};
+
+	ContentEditableInput.prototype.prepareSelection = function () {
+		var result = prepareSelection(this.cm, false);
+		result.focus = this.cm.state.focused;
+		return result
+	};
+
+	ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
+		if (!info || !this.cm.display.view.length) { return }
+		if (info.focus || takeFocus) { this.showPrimarySelection(); }
+		this.showMultipleSelections(info);
+	};
+
+	ContentEditableInput.prototype.getSelection = function () {
+		return this.cm.display.wrapper.ownerDocument.getSelection()
+	};
+
+	ContentEditableInput.prototype.showPrimarySelection = function () {
+		var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
+		var from = prim.from(), to = prim.to();
+
+		if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
+			sel.removeAllRanges();
+			return
+		}
+
+		var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+		var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
+		if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+				cmp(minPos(curAnchor, curFocus), from) == 0 &&
+				cmp(maxPos(curAnchor, curFocus), to) == 0)
+			{ return }
+
+		var view = cm.display.view;
+		var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
+				{node: view[0].measure.map[2], offset: 0};
+		var end = to.line < cm.display.viewTo && posToDOM(cm, to);
+		if (!end) {
+			var measure = view[view.length - 1].measure;
+			var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+			end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]};
+		}
+
+		if (!start || !end) {
+			sel.removeAllRanges();
+			return
+		}
+
+		var old = sel.rangeCount && sel.getRangeAt(0), rng;
+		try { rng = range(start.node, start.offset, end.offset, end.node); }
+		catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+		if (rng) {
+			if (!gecko && cm.state.focused) {
+				sel.collapse(start.node, start.offset);
+				if (!rng.collapsed) {
+					sel.removeAllRanges();
+					sel.addRange(rng);
+				}
+			} else {
+				sel.removeAllRanges();
+				sel.addRange(rng);
+			}
+			if (old && sel.anchorNode == null) { sel.addRange(old); }
+			else if (gecko) { this.startGracePeriod(); }
+		}
+		this.rememberSelection();
+	};
+
+	ContentEditableInput.prototype.startGracePeriod = function () {
+			var this$1 = this;
+
+		clearTimeout(this.gracePeriod);
+		this.gracePeriod = setTimeout(function () {
+			this$1.gracePeriod = false;
+			if (this$1.selectionChanged())
+				{ this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
+		}, 20);
+	};
+
+	ContentEditableInput.prototype.showMultipleSelections = function (info) {
+		removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
+		removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
+	};
+
+	ContentEditableInput.prototype.rememberSelection = function () {
+		var sel = this.getSelection();
+		this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
+		this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
+	};
+
+	ContentEditableInput.prototype.selectionInEditor = function () {
+		var sel = this.getSelection();
+		if (!sel.rangeCount) { return false }
+		var node = sel.getRangeAt(0).commonAncestorContainer;
+		return contains(this.div, node)
+	};
+
+	ContentEditableInput.prototype.focus = function () {
+		if (this.cm.options.readOnly != "nocursor") {
+			if (!this.selectionInEditor())
+				{ this.showSelection(this.prepareSelection(), true); }
+			this.div.focus();
+		}
+	};
+	ContentEditableInput.prototype.blur = function () { this.div.blur(); };
+	ContentEditableInput.prototype.getField = function () { return this.div };
+
+	ContentEditableInput.prototype.supportsTouch = function () { return true };
+
+	ContentEditableInput.prototype.receivedFocus = function () {
+		var input = this;
+		if (this.selectionInEditor())
+			{ this.pollSelection(); }
+		else
+			{ runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }
+
+		function poll() {
+			if (input.cm.state.focused) {
+				input.pollSelection();
+				input.polling.set(input.cm.options.pollInterval, poll);
+			}
+		}
+		this.polling.set(this.cm.options.pollInterval, poll);
+	};
+
+	ContentEditableInput.prototype.selectionChanged = function () {
+		var sel = this.getSelection();
+		return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+			sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
+	};
+
+	ContentEditableInput.prototype.pollSelection = function () {
+		if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
+		var sel = this.getSelection(), cm = this.cm;
+		// On Android Chrome (version 56, at least), backspacing into an
+		// uneditable block element will put the cursor in that element,
+		// and then, because it's not editable, hide the virtual keyboard.
+		// Because Android doesn't allow us to actually detect backspace
+		// presses in a sane way, this code checks for when that happens
+		// and simulates a backspace press in this case.
+		if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
+			this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
+			this.blur();
+			this.focus();
+			return
+		}
+		if (this.composing) { return }
+		this.rememberSelection();
+		var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+		var head = domToPos(cm, sel.focusNode, sel.focusOffset);
+		if (anchor && head) { runInOp(cm, function () {
+			setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
+			if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
+		}); }
+	};
+
+	ContentEditableInput.prototype.pollContent = function () {
+		if (this.readDOMTimeout != null) {
+			clearTimeout(this.readDOMTimeout);
+			this.readDOMTimeout = null;
+		}
+
+		var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
+		var from = sel.from(), to = sel.to();
+		if (from.ch == 0 && from.line > cm.firstLine())
+			{ from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
+		if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
+			{ to = Pos(to.line + 1, 0); }
+		if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }
+
+		var fromIndex, fromLine, fromNode;
+		if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+			fromLine = lineNo(display.view[0].line);
+			fromNode = display.view[0].node;
+		} else {
+			fromLine = lineNo(display.view[fromIndex].line);
+			fromNode = display.view[fromIndex - 1].node.nextSibling;
+		}
+		var toIndex = findViewIndex(cm, to.line);
+		var toLine, toNode;
+		if (toIndex == display.view.length - 1) {
+			toLine = display.viewTo - 1;
+			toNode = display.lineDiv.lastChild;
+		} else {
+			toLine = lineNo(display.view[toIndex + 1].line) - 1;
+			toNode = display.view[toIndex + 1].node.previousSibling;
+		}
+
+		if (!fromNode) { return false }
+		var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
+		var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
+		while (newText.length > 1 && oldText.length > 1) {
+			if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
+			else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
+			else { break }
+		}
+
+		var cutFront = 0, cutEnd = 0;
+		var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
+		while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+			{ ++cutFront; }
+		var newBot = lst(newText), oldBot = lst(oldText);
+		var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+														 oldBot.length - (oldText.length == 1 ? cutFront : 0));
+		while (cutEnd < maxCutEnd &&
+					 newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+			{ ++cutEnd; }
+		// Try to move start of change to start of selection if ambiguous
+		if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
+			while (cutFront && cutFront > from.ch &&
+						 newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
+				cutFront--;
+				cutEnd++;
+			}
+		}
+
+		newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
+		newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");
+
+		var chFrom = Pos(fromLine, cutFront);
+		var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
+		if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+			replaceRange(cm.doc, newText, chFrom, chTo, "+input");
+			return true
+		}
+	};
+
+	ContentEditableInput.prototype.ensurePolled = function () {
+		this.forceCompositionEnd();
+	};
+	ContentEditableInput.prototype.reset = function () {
+		this.forceCompositionEnd();
+	};
+	ContentEditableInput.prototype.forceCompositionEnd = function () {
+		if (!this.composing) { return }
+		clearTimeout(this.readDOMTimeout);
+		this.composing = null;
+		this.updateFromDOM();
+		this.div.blur();
+		this.div.focus();
+	};
+	ContentEditableInput.prototype.readFromDOMSoon = function () {
+			var this$1 = this;
+
+		if (this.readDOMTimeout != null) { return }
+		this.readDOMTimeout = setTimeout(function () {
+			this$1.readDOMTimeout = null;
+			if (this$1.composing) {
+				if (this$1.composing.done) { this$1.composing = null; }
+				else { return }
+			}
+			this$1.updateFromDOM();
+		}, 80);
+	};
+
+	ContentEditableInput.prototype.updateFromDOM = function () {
+			var this$1 = this;
+
+		if (this.cm.isReadOnly() || !this.pollContent())
+			{ runInOp(this.cm, function () { return regChange(this$1.cm); }); }
+	};
+
+	ContentEditableInput.prototype.setUneditable = function (node) {
+		node.contentEditable = "false";
+	};
+
+	ContentEditableInput.prototype.onKeyPress = function (e) {
+		if (e.charCode == 0 || this.composing) { return }
+		e.preventDefault();
+		if (!this.cm.isReadOnly())
+			{ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
+	};
+
+	ContentEditableInput.prototype.readOnlyChanged = function (val) {
+		this.div.contentEditable = String(val != "nocursor");
+	};
+
+	ContentEditableInput.prototype.onContextMenu = function () {};
+	ContentEditableInput.prototype.resetPosition = function () {};
+
+	ContentEditableInput.prototype.needsContentAttribute = true;
+
+	function posToDOM(cm, pos) {
+		var view = findViewForLine(cm, pos.line);
+		if (!view || view.hidden) { return null }
+		var line = getLine(cm.doc, pos.line);
+		var info = mapFromLineView(view, line, pos.line);
+
+		var order = getOrder(line, cm.doc.direction), side = "left";
+		if (order) {
+			var partPos = getBidiPartAt(order, pos.ch);
+			side = partPos % 2 ? "right" : "left";
+		}
+		var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
+		result.offset = result.collapse == "right" ? result.end : result.start;
+		return result
+	}
+
+	function isInGutter(node) {
+		for (var scan = node; scan; scan = scan.parentNode)
+			{ if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
+		return false
+	}
+
+	function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }
+
+	function domTextBetween(cm, from, to, fromLine, toLine) {
+		var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;
+		function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
+		function close() {
+			if (closing) {
+				text += lineSep;
+				if (extraLinebreak) { text += lineSep; }
+				closing = extraLinebreak = false;
+			}
+		}
+		function addText(str) {
+			if (str) {
+				close();
+				text += str;
+			}
+		}
+		function walk(node) {
+			if (node.nodeType == 1) {
+				var cmText = node.getAttribute("cm-text");
+				if (cmText) {
+					addText(cmText);
+					return
+				}
+				var markerID = node.getAttribute("cm-marker"), range$$1;
+				if (markerID) {
+					var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
+					if (found.length && (range$$1 = found[0].find(0)))
+						{ addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); }
+					return
+				}
+				if (node.getAttribute("contenteditable") == "false") { return }
+				var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);
+				if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }
+
+				if (isBlock) { close(); }
+				for (var i = 0; i < node.childNodes.length; i++)
+					{ walk(node.childNodes[i]); }
+
+				if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
+				if (isBlock) { closing = true; }
+			} else if (node.nodeType == 3) {
+				addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
+			}
+		}
+		for (;;) {
+			walk(from);
+			if (from == to) { break }
+			from = from.nextSibling;
+			extraLinebreak = false;
+		}
+		return text
+	}
+
+	function domToPos(cm, node, offset) {
+		var lineNode;
+		if (node == cm.display.lineDiv) {
+			lineNode = cm.display.lineDiv.childNodes[offset];
+			if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
+			node = null; offset = 0;
+		} else {
+			for (lineNode = node;; lineNode = lineNode.parentNode) {
+				if (!lineNode || lineNode == cm.display.lineDiv) { return null }
+				if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
+			}
+		}
+		for (var i = 0; i < cm.display.view.length; i++) {
+			var lineView = cm.display.view[i];
+			if (lineView.node == lineNode)
+				{ return locateNodeInLineView(lineView, node, offset) }
+		}
+	}
+
+	function locateNodeInLineView(lineView, node, offset) {
+		var wrapper = lineView.text.firstChild, bad = false;
+		if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
+		if (node == wrapper) {
+			bad = true;
+			node = wrapper.childNodes[offset];
+			offset = 0;
+			if (!node) {
+				var line = lineView.rest ? lst(lineView.rest) : lineView.line;
+				return badPos(Pos(lineNo(line), line.text.length), bad)
+			}
+		}
+
+		var textNode = node.nodeType == 3 ? node : null, topNode = node;
+		if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+			textNode = node.firstChild;
+			if (offset) { offset = textNode.nodeValue.length; }
+		}
+		while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
+		var measure = lineView.measure, maps = measure.maps;
+
+		function find(textNode, topNode, offset) {
+			for (var i = -1; i < (maps ? maps.length : 0); i++) {
+				var map$$1 = i < 0 ? measure.map : maps[i];
+				for (var j = 0; j < map$$1.length; j += 3) {
+					var curNode = map$$1[j + 2];
+					if (curNode == textNode || curNode == topNode) {
+						var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
+						var ch = map$$1[j] + offset;
+						if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; }
+						return Pos(line, ch)
+					}
+				}
+			}
+		}
+		var found = find(textNode, topNode, offset);
+		if (found) { return badPos(found, bad) }
+
+		// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+		for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+			found = find(after, after.firstChild, 0);
+			if (found)
+				{ return badPos(Pos(found.line, found.ch - dist), bad) }
+			else
+				{ dist += after.textContent.length; }
+		}
+		for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
+			found = find(before, before.firstChild, -1);
+			if (found)
+				{ return badPos(Pos(found.line, found.ch + dist$1), bad) }
+			else
+				{ dist$1 += before.textContent.length; }
+		}
+	}
+
+	// TEXTAREA INPUT STYLE
+
+	var TextareaInput = function(cm) {
+		this.cm = cm;
+		// See input.poll and input.reset
+		this.prevInput = "";
+
+		// Flag that indicates whether we expect input to appear real soon
+		// now (after some event like 'keypress' or 'input') and are
+		// polling intensively.
+		this.pollingFast = false;
+		// Self-resetting timeout for the poller
+		this.polling = new Delayed();
+		// Used to work around IE issue with selection being forgotten when focus moves away from textarea
+		this.hasSelection = false;
+		this.composing = null;
+	};
+
+	TextareaInput.prototype.init = function (display) {
+			var this$1 = this;
+
+		var input = this, cm = this.cm;
+		this.createField(display);
+		var te = this.textarea;
+
+		display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);
+
+		// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+		if (ios) { te.style.width = "0px"; }
+
+		on(te, "input", function () {
+			if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
+			input.poll();
+		});
+
+		on(te, "paste", function (e) {
+			if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+
+			cm.state.pasteIncoming = +new Date;
+			input.fastPoll();
+		});
+
+		function prepareCopyCut(e) {
+			if (signalDOMEvent(cm, e)) { return }
+			if (cm.somethingSelected()) {
+				setLastCopied({lineWise: false, text: cm.getSelections()});
+			} else if (!cm.options.lineWiseCopyCut) {
+				return
+			} else {
+				var ranges = copyableRanges(cm);
+				setLastCopied({lineWise: true, text: ranges.text});
+				if (e.type == "cut") {
+					cm.setSelections(ranges.ranges, null, sel_dontScroll);
+				} else {
+					input.prevInput = "";
+					te.value = ranges.text.join("\n");
+					selectInput(te);
+				}
+			}
+			if (e.type == "cut") { cm.state.cutIncoming = +new Date; }
+		}
+		on(te, "cut", prepareCopyCut);
+		on(te, "copy", prepareCopyCut);
+
+		on(display.scroller, "paste", function (e) {
+			if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
+			if (!te.dispatchEvent) {
+				cm.state.pasteIncoming = +new Date;
+				input.focus();
+				return
+			}
+
+			// Pass the `paste` event to the textarea so it's handled by its event listener.
+			var event = new Event("paste");
+			event.clipboardData = e.clipboardData;
+			te.dispatchEvent(event);
+		});
+
+		// Prevent normal selection in the editor (we handle our own)
+		on(display.lineSpace, "selectstart", function (e) {
+			if (!eventInWidget(display, e)) { e_preventDefault(e); }
+		});
+
+		on(te, "compositionstart", function () {
+			var start = cm.getCursor("from");
+			if (input.composing) { input.composing.range.clear(); }
+			input.composing = {
+				start: start,
+				range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+			};
+		});
+		on(te, "compositionend", function () {
+			if (input.composing) {
+				input.poll();
+				input.composing.range.clear();
+				input.composing = null;
+			}
+		});
+	};
+
+	TextareaInput.prototype.createField = function (_display) {
+		// Wraps and hides input textarea
+		this.wrapper = hiddenTextarea();
+		// The semihidden textarea that is focused when the editor is
+		// focused, and receives input.
+		this.textarea = this.wrapper.firstChild;
+	};
+
+	TextareaInput.prototype.prepareSelection = function () {
+		// Redraw the selection and/or cursor
+		var cm = this.cm, display = cm.display, doc = cm.doc;
+		var result = prepareSelection(cm);
+
+		// Move the hidden textarea near the cursor to prevent scrolling artifacts
+		if (cm.options.moveInputWithCursor) {
+			var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
+			var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
+			result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+																					headPos.top + lineOff.top - wrapOff.top));
+			result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+																					 headPos.left + lineOff.left - wrapOff.left));
+		}
+
+		return result
+	};
+
+	TextareaInput.prototype.showSelection = function (drawn) {
+		var cm = this.cm, display = cm.display;
+		removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
+		removeChildrenAndAdd(display.selectionDiv, drawn.selection);
+		if (drawn.teTop != null) {
+			this.wrapper.style.top = drawn.teTop + "px";
+			this.wrapper.style.left = drawn.teLeft + "px";
+		}
+	};
+
+	// Reset the input to correspond to the selection (or to be empty,
+	// when not typing and nothing is selected)
+	TextareaInput.prototype.reset = function (typing) {
+		if (this.contextMenuPending || this.composing) { return }
+		var cm = this.cm;
+		if (cm.somethingSelected()) {
+			this.prevInput = "";
+			var content = cm.getSelection();
+			this.textarea.value = content;
+			if (cm.state.focused) { selectInput(this.textarea); }
+			if (ie && ie_version >= 9) { this.hasSelection = content; }
+		} else if (!typing) {
+			this.prevInput = this.textarea.value = "";
+			if (ie && ie_version >= 9) { this.hasSelection = null; }
+		}
+	};
+
+	TextareaInput.prototype.getField = function () { return this.textarea };
+
+	TextareaInput.prototype.supportsTouch = function () { return false };
+
+	TextareaInput.prototype.focus = function () {
+		if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+			try { this.textarea.focus(); }
+			catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+		}
+	};
+
+	TextareaInput.prototype.blur = function () { this.textarea.blur(); };
+
+	TextareaInput.prototype.resetPosition = function () {
+		this.wrapper.style.top = this.wrapper.style.left = 0;
+	};
+
+	TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };
+
+	// Poll for input changes, using the normal rate of polling. This
+	// runs as long as the editor is focused.
+	TextareaInput.prototype.slowPoll = function () {
+			var this$1 = this;
+
+		if (this.pollingFast) { return }
+		this.polling.set(this.cm.options.pollInterval, function () {
+			this$1.poll();
+			if (this$1.cm.state.focused) { this$1.slowPoll(); }
+		});
+	};
+
+	// When an event has just come in that is likely to add or change
+	// something in the input textarea, we poll faster, to ensure that
+	// the change appears on the screen quickly.
+	TextareaInput.prototype.fastPoll = function () {
+		var missed = false, input = this;
+		input.pollingFast = true;
+		function p() {
+			var changed = input.poll();
+			if (!changed && !missed) {missed = true; input.polling.set(60, p);}
+			else {input.pollingFast = false; input.slowPoll();}
+		}
+		input.polling.set(20, p);
+	};
+
+	// Read input from the textarea, and update the document to match.
+	// When something is selected, it is present in the textarea, and
+	// selected (unless it is huge, in which case a placeholder is
+	// used). When nothing is selected, the cursor sits after previously
+	// seen text (can be empty), which is stored in prevInput (we must
+	// not reset the textarea when typing, because that breaks IME).
+	TextareaInput.prototype.poll = function () {
+			var this$1 = this;
+
+		var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
+		// Since this is called a *lot*, try to bail out as cheaply as
+		// possible when it is clear that nothing happened. hasSelection
+		// will be the case when there is a lot of text in the textarea,
+		// in which case reading its value would be expensive.
+		if (this.contextMenuPending || !cm.state.focused ||
+				(hasSelection(input) && !prevInput && !this.composing) ||
+				cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
+			{ return false }
+
+		var text = input.value;
+		// If nothing changed, bail.
+		if (text == prevInput && !cm.somethingSelected()) { return false }
+		// Work around nonsensical selection resetting in IE9/10, and
+		// inexplicable appearance of private area unicode characters on
+		// some key combos in Mac (#2689).
+		if (ie && ie_version >= 9 && this.hasSelection === text ||
+				mac && /[\uf700-\uf7ff]/.test(text)) {
+			cm.display.input.reset();
+			return false
+		}
+
+		if (cm.doc.sel == cm.display.selForContextMenu) {
+			var first = text.charCodeAt(0);
+			if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
+			if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
+		}
+		// Find the part of the input that is actually new
+		var same = 0, l = Math.min(prevInput.length, text.length);
+		while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }
+
+		runInOp(cm, function () {
+			applyTextInput(cm, text.slice(same), prevInput.length - same,
+										 null, this$1.composing ? "*compose" : null);
+
+			// Don't leave long text in the textarea, since it makes further polling slow
+			if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
+			else { this$1.prevInput = text; }
+
+			if (this$1.composing) {
+				this$1.composing.range.clear();
+				this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
+																					 {className: "CodeMirror-composing"});
+			}
+		});
+		return true
+	};
+
+	TextareaInput.prototype.ensurePolled = function () {
+		if (this.pollingFast && this.poll()) { this.pollingFast = false; }
+	};
+
+	TextareaInput.prototype.onKeyPress = function () {
+		if (ie && ie_version >= 9) { this.hasSelection = null; }
+		this.fastPoll();
+	};
+
+	TextareaInput.prototype.onContextMenu = function (e) {
+		var input = this, cm = input.cm, display = cm.display, te = input.textarea;
+		if (input.contextMenuPending) { input.contextMenuPending(); }
+		var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
+		if (!pos || presto) { return } // Opera is difficult.
+
+		// Reset the current text selection only if the click is done outside of the selection
+		// and 'resetSelectionOnContextMenu' option is true.
+		var reset = cm.options.resetSelectionOnContextMenu;
+		if (reset && cm.doc.sel.contains(pos) == -1)
+			{ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }
+
+		var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
+		var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();
+		input.wrapper.style.cssText = "position: static";
+		te.style.cssText = "position: absolute; width: 30px; height: 30px;\n      top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n      z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+		var oldScrollY;
+		if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)
+		display.input.focus();
+		if (webkit) { window.scrollTo(null, oldScrollY); }
+		display.input.reset();
+		// Adds "Select all" to context menu in FF
+		if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
+		input.contextMenuPending = rehide;
+		display.selForContextMenu = cm.doc.sel;
+		clearTimeout(display.detectingSelectAll);
+
+		// Select-all will be greyed out if there's nothing to select, so
+		// this adds a zero-width space so that we can later check whether
+		// it got selected.
+		function prepareSelectAllHack() {
+			if (te.selectionStart != null) {
+				var selected = cm.somethingSelected();
+				var extval = "\u200b" + (selected ? te.value : "");
+				te.value = "\u21da"; // Used to catch context-menu undo
+				te.value = extval;
+				input.prevInput = selected ? "" : "\u200b";
+				te.selectionStart = 1; te.selectionEnd = extval.length;
+				// Re-set this, in case some other handler touched the
+				// selection in the meantime.
+				display.selForContextMenu = cm.doc.sel;
+			}
+		}
+		function rehide() {
+			if (input.contextMenuPending != rehide) { return }
+			input.contextMenuPending = false;
+			input.wrapper.style.cssText = oldWrapperCSS;
+			te.style.cssText = oldCSS;
+			if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }
+
+			// Try to detect the user choosing select-all
+			if (te.selectionStart != null) {
+				if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
+				var i = 0, poll = function () {
+					if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+							te.selectionEnd > 0 && input.prevInput == "\u200b") {
+						operation(cm, selectAll)(cm);
+					} else if (i++ < 10) {
+						display.detectingSelectAll = setTimeout(poll, 500);
+					} else {
+						display.selForContextMenu = null;
+						display.input.reset();
+					}
+				};
+				display.detectingSelectAll = setTimeout(poll, 200);
+			}
+		}
+
+		if (ie && ie_version >= 9) { prepareSelectAllHack(); }
+		if (captureRightClick) {
+			e_stop(e);
+			var mouseup = function () {
+				off(window, "mouseup", mouseup);
+				setTimeout(rehide, 20);
+			};
+			on(window, "mouseup", mouseup);
+		} else {
+			setTimeout(rehide, 50);
+		}
+	};
+
+	TextareaInput.prototype.readOnlyChanged = function (val) {
+		if (!val) { this.reset(); }
+		this.textarea.disabled = val == "nocursor";
+	};
+
+	TextareaInput.prototype.setUneditable = function () {};
+
+	TextareaInput.prototype.needsContentAttribute = false;
+
+	function fromTextArea(textarea, options) {
+		options = options ? copyObj(options) : {};
+		options.value = textarea.value;
+		if (!options.tabindex && textarea.tabIndex)
+			{ options.tabindex = textarea.tabIndex; }
+		if (!options.placeholder && textarea.placeholder)
+			{ options.placeholder = textarea.placeholder; }
+		// Set autofocus to true if this textarea is focused, or if it has
+		// autofocus and no other element is focused.
+		if (options.autofocus == null) {
+			var hasFocus = activeElt();
+			options.autofocus = hasFocus == textarea ||
+				textarea.getAttribute("autofocus") != null && hasFocus == document.body;
+		}
+
+		function save() {textarea.value = cm.getValue();}
+
+		var realSubmit;
+		if (textarea.form) {
+			on(textarea.form, "submit", save);
+			// Deplorable hack to make the submit method do the right thing.
+			if (!options.leaveSubmitMethodAlone) {
+				var form = textarea.form;
+				realSubmit = form.submit;
+				try {
+					var wrappedSubmit = form.submit = function () {
+						save();
+						form.submit = realSubmit;
+						form.submit();
+						form.submit = wrappedSubmit;
+					};
+				} catch(e) {}
+			}
+		}
+
+		options.finishInit = function (cm) {
+			cm.save = save;
+			cm.getTextArea = function () { return textarea; };
+			cm.toTextArea = function () {
+				cm.toTextArea = isNaN; // Prevent this from being ran twice
+				save();
+				textarea.parentNode.removeChild(cm.getWrapperElement());
+				textarea.style.display = "";
+				if (textarea.form) {
+					off(textarea.form, "submit", save);
+					if (typeof textarea.form.submit == "function")
+						{ textarea.form.submit = realSubmit; }
+				}
+			};
+		};
+
+		textarea.style.display = "none";
+		var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
+			options);
+		return cm
+	}
+
+	function addLegacyProps(CodeMirror) {
+		CodeMirror.off = off;
+		CodeMirror.on = on;
+		CodeMirror.wheelEventPixels = wheelEventPixels;
+		CodeMirror.Doc = Doc;
+		CodeMirror.splitLines = splitLinesAuto;
+		CodeMirror.countColumn = countColumn;
+		CodeMirror.findColumn = findColumn;
+		CodeMirror.isWordChar = isWordCharBasic;
+		CodeMirror.Pass = Pass;
+		CodeMirror.signal = signal;
+		CodeMirror.Line = Line;
+		CodeMirror.changeEnd = changeEnd;
+		CodeMirror.scrollbarModel = scrollbarModel;
+		CodeMirror.Pos = Pos;
+		CodeMirror.cmpPos = cmp;
+		CodeMirror.modes = modes;
+		CodeMirror.mimeModes = mimeModes;
+		CodeMirror.resolveMode = resolveMode;
+		CodeMirror.getMode = getMode;
+		CodeMirror.modeExtensions = modeExtensions;
+		CodeMirror.extendMode = extendMode;
+		CodeMirror.copyState = copyState;
+		CodeMirror.startState = startState;
+		CodeMirror.innerMode = innerMode;
+		CodeMirror.commands = commands;
+		CodeMirror.keyMap = keyMap;
+		CodeMirror.keyName = keyName;
+		CodeMirror.isModifierKey = isModifierKey;
+		CodeMirror.lookupKey = lookupKey;
+		CodeMirror.normalizeKeyMap = normalizeKeyMap;
+		CodeMirror.StringStream = StringStream;
+		CodeMirror.SharedTextMarker = SharedTextMarker;
+		CodeMirror.TextMarker = TextMarker;
+		CodeMirror.LineWidget = LineWidget;
+		CodeMirror.e_preventDefault = e_preventDefault;
+		CodeMirror.e_stopPropagation = e_stopPropagation;
+		CodeMirror.e_stop = e_stop;
+		CodeMirror.addClass = addClass;
+		CodeMirror.contains = contains;
+		CodeMirror.rmClass = rmClass;
+		CodeMirror.keyNames = keyNames;
+	}
+
+	// EDITOR CONSTRUCTOR
+
+	defineOptions(CodeMirror);
+
+	addEditorMethods(CodeMirror);
+
+	// Set up methods on CodeMirror's prototype to redirect to the editor's document.
+	var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
+	for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+		{ CodeMirror.prototype[prop] = (function(method) {
+			return function() {return method.apply(this.doc, arguments)}
+		})(Doc.prototype[prop]); } }
+
+	eventMixin(Doc);
+	CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
+
+	// Extra arguments are stored as the mode's dependencies, which is
+	// used by (legacy) mechanisms like loadmode.js to automatically
+	// load a mode. (Preferred mechanism is the require/define calls.)
+	CodeMirror.defineMode = function(name/*, mode, …*/) {
+		if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
+		defineMode.apply(this, arguments);
+	};
+
+	CodeMirror.defineMIME = defineMIME;
+
+	// Minimal default mode.
+	CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
+	CodeMirror.defineMIME("text/plain", "null");
+
+	// EXTENSIONS
+
+	CodeMirror.defineExtension = function (name, func) {
+		CodeMirror.prototype[name] = func;
+	};
+	CodeMirror.defineDocExtension = function (name, func) {
+		Doc.prototype[name] = func;
+	};
+
+	CodeMirror.fromTextArea = fromTextArea;
+
+	addLegacyProps(CodeMirror);
+
+	CodeMirror.version = "5.48.1";
+
+	return CodeMirror;
+
+})));
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+	if (typeof exports == "object" && typeof module == "object") // CommonJS
+		mod(require("../../lib/codemirror"));
+	else if (typeof define == "function" && define.amd) // AMD
+		define(["../../lib/codemirror"], mod);
+	else // Plain browser env
+		mod(CodeMirror);
+})(function(CodeMirror) {
+	"use strict";
+
+	CodeMirror.defineOption("selectionPointer", false, function(cm, val) {
+		var data = cm.state.selectionPointer;
+		if (data) {
+			CodeMirror.off(cm.getWrapperElement(), "mousemove", data.mousemove);
+			CodeMirror.off(cm.getWrapperElement(), "mouseout", data.mouseout);
+			CodeMirror.off(window, "scroll", data.windowScroll);
+			cm.off("cursorActivity", reset);
+			cm.off("scroll", reset);
+			cm.state.selectionPointer = null;
+			cm.display.lineDiv.style.cursor = "";
+		}
+		if (val) {
+			data = cm.state.selectionPointer = {
+				value: typeof val == "string" ? val : "default",
+				mousemove: function(event) { mousemove(cm, event); },
+				mouseout: function(event) { mouseout(cm, event); },
+				windowScroll: function() { reset(cm); },
+				rects: null,
+				mouseX: null, mouseY: null,
+				willUpdate: false
+			};
+			CodeMirror.on(cm.getWrapperElement(), "mousemove", data.mousemove);
+			CodeMirror.on(cm.getWrapperElement(), "mouseout", data.mouseout);
+			CodeMirror.on(window, "scroll", data.windowScroll);
+			cm.on("cursorActivity", reset);
+			cm.on("scroll", reset);
+		}
+	});
+
+	function mousemove(cm, event) {
+		var data = cm.state.selectionPointer;
+		if (event.buttons == null ? event.which : event.buttons) {
+			data.mouseX = data.mouseY = null;
+		} else {
+			data.mouseX = event.clientX;
+			data.mouseY = event.clientY;
+		}
+		scheduleUpdate(cm);
+	}
+
+	function mouseout(cm, event) {
+		if (!cm.getWrapperElement().contains(event.relatedTarget)) {
+			var data = cm.state.selectionPointer;
+			data.mouseX = data.mouseY = null;
+			scheduleUpdate(cm);
+		}
+	}
+
+	function reset(cm) {
+		cm.state.selectionPointer.rects = null;
+		scheduleUpdate(cm);
+	}
+
+	function scheduleUpdate(cm) {
+		if (!cm.state.selectionPointer.willUpdate) {
+			cm.state.selectionPointer.willUpdate = true;
+			setTimeout(function() {
+				update(cm);
+				cm.state.selectionPointer.willUpdate = false;
+			}, 50);
+		}
+	}
+
+	function update(cm) {
+		var data = cm.state.selectionPointer;
+		if (!data) return;
+		if (data.rects == null && data.mouseX != null) {
+			data.rects = [];
+			if (cm.somethingSelected()) {
+				for (var sel = cm.display.selectionDiv.firstChild; sel; sel = sel.nextSibling)
+					data.rects.push(sel.getBoundingClientRect());
+			}
+		}
+		var inside = false;
+		if (data.mouseX != null) for (var i = 0; i < data.rects.length; i++) {
+			var rect = data.rects[i];
+			if (rect.left <= data.mouseX && rect.right >= data.mouseX &&
+					rect.top <= data.mouseY && rect.bottom >= data.mouseY)
+				inside = true;
+		}
+		var cursor = inside ? data.value : "";
+		if (cm.display.lineDiv.style.cursor != cursor)
+			cm.display.lineDiv.style.cursor = cursor;
+	}
+});
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+	if (typeof exports == "object" && typeof module == "object") // CommonJS
+		mod(require("../../lib/codemirror"));
+	else if (typeof define == "function" && define.amd) // AMD
+		define(["../../lib/codemirror"], mod);
+	else // Plain browser env
+		mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var htmlConfig = {
+	autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
+										'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
+										'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
+										'track': true, 'wbr': true, 'menuitem': true},
+	implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
+										 'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
+										 'th': true, 'tr': true},
+	contextGrabbers: {
+		'dd': {'dd': true, 'dt': true},
+		'dt': {'dd': true, 'dt': true},
+		'li': {'li': true},
+		'option': {'option': true, 'optgroup': true},
+		'optgroup': {'optgroup': true},
+		'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
+					'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
+					'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
+					'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
+					'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
+		'rp': {'rp': true, 'rt': true},
+		'rt': {'rp': true, 'rt': true},
+		'tbody': {'tbody': true, 'tfoot': true},
+		'td': {'td': true, 'th': true},
+		'tfoot': {'tbody': true},
+		'th': {'td': true, 'th': true},
+		'thead': {'tbody': true, 'tfoot': true},
+		'tr': {'tr': true}
+	},
+	doNotIndent: {"pre": true},
+	allowUnquoted: true,
+	allowMissing: true,
+	caseFold: true
+}
+
+var xmlConfig = {
+	autoSelfClosers: {},
+	implicitlyClosed: {},
+	contextGrabbers: {},
+	doNotIndent: {},
+	allowUnquoted: false,
+	allowMissing: false,
+	allowMissingTagName: false,
+	caseFold: false
+}
+
+CodeMirror.defineMode("xml", function(editorConf, config_) {
+	var indentUnit = editorConf.indentUnit
+	var config = {}
+	var defaults = config_.htmlMode ? htmlConfig : xmlConfig
+	for (var prop in defaults) config[prop] = defaults[prop]
+	for (var prop in config_) config[prop] = config_[prop]
+
+	// Return variables for tokenizers
+	var type, setStyle;
+
+	function inText(stream, state) {
+		function chain(parser) {
+			state.tokenize = parser;
+			return parser(stream, state);
+		}
+
+		var ch = stream.next();
+		if (ch == "<") {
+			if (stream.eat("!")) {
+				if (stream.eat("[")) {
+					if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
+					else return null;
+				} else if (stream.match("--")) {
+					return chain(inBlock("comment", "-->"));
+				} else if (stream.match("DOCTYPE", true, true)) {
+					stream.eatWhile(/[\w\._\-]/);
+					return chain(doctype(1));
+				} else {
+					return null;
+				}
+			} else if (stream.eat("?")) {
+				stream.eatWhile(/[\w\._\-]/);
+				state.tokenize = inBlock("meta", "?>");
+				return "meta";
+			} else {
+				type = stream.eat("/") ? "closeTag" : "openTag";
+				state.tokenize = inTag;
+				return "tag bracket";
+			}
+		} else if (ch == "&") {
+			var ok;
+			if (stream.eat("#")) {
+				if (stream.eat("x")) {
+					ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
+				} else {
+					ok = stream.eatWhile(/[\d]/) && stream.eat(";");
+				}
+			} else {
+				ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
+			}
+			return ok ? "atom" : "error";
+		} else {
+			stream.eatWhile(/[^&<]/);
+			return null;
+		}
+	}
+	inText.isInText = true;
+
+	function inTag(stream, state) {
+		var ch = stream.next();
+		if (ch == ">" || (ch == "/" && stream.eat(">"))) {
+			state.tokenize = inText;
+			type = ch == ">" ? "endTag" : "selfcloseTag";
+			return "tag bracket";
+		} else if (ch == "=") {
+			type = "equals";
+			return null;
+		} else if (ch == "<") {
+			state.tokenize = inText;
+			state.state = baseState;
+			state.tagName = state.tagStart = null;
+			var next = state.tokenize(stream, state);
+			return next ? next + " tag error" : "tag error";
+		} else if (/[\'\"]/.test(ch)) {
+			state.tokenize = inAttribute(ch);
+			state.stringStartCol = stream.column();
+			return state.tokenize(stream, state);
+		} else {
+			stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
+			return "word";
+		}
+	}
+
+	function inAttribute(quote) {
+		var closure = function(stream, state) {
+			while (!stream.eol()) {
+				if (stream.next() == quote) {
+					state.tokenize = inTag;
+					break;
+				}
+			}
+			return "string";
+		};
+		closure.isInAttribute = true;
+		return closure;
+	}
+
+	function inBlock(style, terminator) {
+		return function(stream, state) {
+			while (!stream.eol()) {
+				if (stream.match(terminator)) {
+					state.tokenize = inText;
+					break;
+				}
+				stream.next();
+			}
+			return style;
+		}
+	}
+
+	function doctype(depth) {
+		return function(stream, state) {
+			var ch;
+			while ((ch = stream.next()) != null) {
+				if (ch == "<") {
+					state.tokenize = doctype(depth + 1);
+					return state.tokenize(stream, state);
+				} else if (ch == ">") {
+					if (depth == 1) {
+						state.tokenize = inText;
+						break;
+					} else {
+						state.tokenize = doctype(depth - 1);
+						return state.tokenize(stream, state);
+					}
+				}
+			}
+			return "meta";
+		};
+	}
+
+	function Context(state, tagName, startOfLine) {
+		this.prev = state.context;
+		this.tagName = tagName;
+		this.indent = state.indented;
+		this.startOfLine = startOfLine;
+		if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
+			this.noIndent = true;
+	}
+	function popContext(state) {
+		if (state.context) state.context = state.context.prev;
+	}
+	function maybePopContext(state, nextTagName) {
+		var parentTagName;
+		while (true) {
+			if (!state.context) {
+				return;
+			}
+			parentTagName = state.context.tagName;
+			if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||
+					!config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
+				return;
+			}
+			popContext(state);
+		}
+	}
+
+	function baseState(type, stream, state) {
+		if (type == "openTag") {
+			state.tagStart = stream.column();
+			return tagNameState;
+		} else if (type == "closeTag") {
+			return closeTagNameState;
+		} else {
+			return baseState;
+		}
+	}
+	function tagNameState(type, stream, state) {
+		if (type == "word") {
+			state.tagName = stream.current();
+			setStyle = "tag";
+			return attrState;
+		} else if (config.allowMissingTagName && type == "endTag") {
+			setStyle = "tag bracket";
+			return attrState(type, stream, state);
+		} else {
+			setStyle = "error";
+			return tagNameState;
+		}
+	}
+	function closeTagNameState(type, stream, state) {
+		if (type == "word") {
+			var tagName = stream.current();
+			if (state.context && state.context.tagName != tagName &&
+					config.implicitlyClosed.hasOwnProperty(state.context.tagName))
+				popContext(state);
+			if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {
+				setStyle = "tag";
+				return closeState;
+			} else {
+				setStyle = "tag error";
+				return closeStateErr;
+			}
+		} else if (config.allowMissingTagName && type == "endTag") {
+			setStyle = "tag bracket";
+			return closeState(type, stream, state);
+		} else {
+			setStyle = "error";
+			return closeStateErr;
+		}
+	}
+
+	function closeState(type, _stream, state) {
+		if (type != "endTag") {
+			setStyle = "error";
+			return closeState;
+		}
+		popContext(state);
+		return baseState;
+	}
+	function closeStateErr(type, stream, state) {
+		setStyle = "error";
+		return closeState(type, stream, state);
+	}
+
+	function attrState(type, _stream, state) {
+		if (type == "word") {
+			setStyle = "attribute";
+			return attrEqState;
+		} else if (type == "endTag" || type == "selfcloseTag") {
+			var tagName = state.tagName, tagStart = state.tagStart;
+			state.tagName = state.tagStart = null;
+			if (type == "selfcloseTag" ||
+					config.autoSelfClosers.hasOwnProperty(tagName)) {
+				maybePopContext(state, tagName);
+			} else {
+				maybePopContext(state, tagName);
+				state.context = new Context(state, tagName, tagStart == state.indented);
+			}
+			return baseState;
+		}
+		setStyle = "error";
+		return attrState;
+	}
+	function attrEqState(type, stream, state) {
+		if (type == "equals") return attrValueState;
+		if (!config.allowMissing) setStyle = "error";
+		return attrState(type, stream, state);
+	}
+	function attrValueState(type, stream, state) {
+		if (type == "string") return attrContinuedState;
+		if (type == "word" && config.allowUnquoted) {setStyle = "string"; return attrState;}
+		setStyle = "error";
+		return attrState(type, stream, state);
+	}
+	function attrContinuedState(type, stream, state) {
+		if (type == "string") return attrContinuedState;
+		return attrState(type, stream, state);
+	}
+
+	return {
+		startState: function(baseIndent) {
+			var state = {tokenize: inText,
+									 state: baseState,
+									 indented: baseIndent || 0,
+									 tagName: null, tagStart: null,
+									 context: null}
+			if (baseIndent != null) state.baseIndent = baseIndent
+			return state
+		},
+
+		token: function(stream, state) {
+			if (!state.tagName && stream.sol())
+				state.indented = stream.indentation();
+
+			if (stream.eatSpace()) return null;
+			type = null;
+			var style = state.tokenize(stream, state);
+			if ((style || type) && style != "comment") {
+				setStyle = null;
+				state.state = state.state(type || style, stream, state);
+				if (setStyle)
+					style = setStyle == "error" ? style + " error" : setStyle;
+			}
+			return style;
+		},
+
+		indent: function(state, textAfter, fullLine) {
+			var context = state.context;
+			// Indent multi-line strings (e.g. css).
+			if (state.tokenize.isInAttribute) {
+				if (state.tagStart == state.indented)
+					return state.stringStartCol + 1;
+				else
+					return state.indented + indentUnit;
+			}
+			if (context && context.noIndent) return CodeMirror.Pass;
+			if (state.tokenize != inTag && state.tokenize != inText)
+				return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
+			// Indent the starts of attribute names.
+			if (state.tagName) {
+				if (config.multilineTagIndentPastTag !== false)
+					return state.tagStart + state.tagName.length + 2;
+				else
+					return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);
+			}
+			if (config.alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
+			var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter);
+			if (tagAfter && tagAfter[1]) { // Closing tag spotted
+				while (context) {
+					if (context.tagName == tagAfter[2]) {
+						context = context.prev;
+						break;
+					} else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {
+						context = context.prev;
+					} else {
+						break;
+					}
+				}
+			} else if (tagAfter) { // Opening tag spotted
+				while (context) {
+					var grabbers = config.contextGrabbers[context.tagName];
+					if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))
+						context = context.prev;
+					else
+						break;
+				}
+			}
+			while (context && context.prev && !context.startOfLine)
+				context = context.prev;
+			if (context) return context.indent + indentUnit;
+			else return state.baseIndent || 0;
+		},
+
+		electricInput: /<\/[\s\w:]+>$/,
+		blockCommentStart: "<!--",
+		blockCommentEnd: "-->",
+
+		configuration: config.htmlMode ? "html" : "xml",
+		helperType: config.htmlMode ? "html" : "xml",
+
+		skipAttribute: function(state) {
+			if (state.state == attrValueState)
+				state.state = attrState
+		}
+	};
+});
+
+CodeMirror.defineMIME("text/xml", "xml");
+CodeMirror.defineMIME("application/xml", "xml");
+if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
+	CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
+
+});
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+	if (typeof exports == "object" && typeof module == "object") // CommonJS
+		mod(require("../../lib/codemirror"));
+	else if (typeof define == "function" && define.amd) // AMD
+		define(["../../lib/codemirror"], mod);
+	else // Plain browser env
+		mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("javascript", function(config, parserConfig) {
+	var indentUnit = config.indentUnit;
+	var statementIndent = parserConfig.statementIndent;
+	var jsonldMode = parserConfig.jsonld;
+	var jsonMode = parserConfig.json || jsonldMode;
+	var isTS = parserConfig.typescript;
+	var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
+
+	// Tokenizer
+
+	var keywords = function(){
+		function kw(type) {return {type: type, style: "keyword"};}
+		var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"), D = kw("keyword d");
+		var operator = kw("operator"), atom = {type: "atom", style: "atom"};
+
+		return {
+			"if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
+			"return": D, "break": D, "continue": D, "new": kw("new"), "delete": C, "void": C, "throw": C,
+			"debugger": kw("debugger"), "var": kw("var"), "const": kw("var"), "let": kw("var"),
+			"function": kw("function"), "catch": kw("catch"),
+			"for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
+			"in": operator, "typeof": operator, "instanceof": operator,
+			"true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
+			"this": kw("this"), "class": kw("class"), "super": kw("atom"),
+			"yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
+			"await": C
+		};
+	}();
+
+	var isOperatorChar = /[+\-*&%=<>!?|~^@]/;
+	var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
+
+	function readRegexp(stream) {
+		var escaped = false, next, inSet = false;
+		while ((next = stream.next()) != null) {
+			if (!escaped) {
+				if (next == "/" && !inSet) return;
+				if (next == "[") inSet = true;
+				else if (inSet && next == "]") inSet = false;
+			}
+			escaped = !escaped && next == "\\";
+		}
+	}
+
+	// Used as scratch variables to communicate multiple values without
+	// consing up tons of objects.
+	var type, content;
+	function ret(tp, style, cont) {
+		type = tp; content = cont;
+		return style;
+	}
+	function tokenBase(stream, state) {
+		var ch = stream.next();
+		if (ch == '"' || ch == "'") {
+			state.tokenize = tokenString(ch);
+			return state.tokenize(stream, state);
+		} else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
+			return ret("number", "number");
+		} else if (ch == "." && stream.match("..")) {
+			return ret("spread", "meta");
+		} else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+			return ret(ch);
+		} else if (ch == "=" && stream.eat(">")) {
+			return ret("=>", "operator");
+		} else if (ch == "0" && stream.match(/^(?:x[\da-f]+|o[0-7]+|b[01]+)n?/i)) {
+			return ret("number", "number");
+		} else if (/\d/.test(ch)) {
+			stream.match(/^\d*(?:n|(?:\.\d*)?(?:[eE][+\-]?\d+)?)?/);
+			return ret("number", "number");
+		} else if (ch == "/") {
+			if (stream.eat("*")) {
+				state.tokenize = tokenComment;
+				return tokenComment(stream, state);
+			} else if (stream.eat("/")) {
+				stream.skipToEnd();
+				return ret("comment", "comment");
+			} else if (expressionAllowed(stream, state, 1)) {
+				readRegexp(stream);
+				stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/);
+				return ret("regexp", "string-2");
+			} else {
+				stream.eat("=");
+				return ret("operator", "operator", stream.current());
+			}
+		} else if (ch == "`") {
+			state.tokenize = tokenQuasi;
+			return tokenQuasi(stream, state);
+		} else if (ch == "#") {
+			stream.skipToEnd();
+			return ret("error", "error");
+		} else if (isOperatorChar.test(ch)) {
+			if (ch != ">" || !state.lexical || state.lexical.type != ">") {
+				if (stream.eat("=")) {
+					if (ch == "!" || ch == "=") stream.eat("=")
+				} else if (/[<>*+\-]/.test(ch)) {
+					stream.eat(ch)
+					if (ch == ">") stream.eat(ch)
+				}
+			}
+			return ret("operator", "operator", stream.current());
+		} else if (wordRE.test(ch)) {
+			stream.eatWhile(wordRE);
+			var word = stream.current()
+			if (state.lastType != ".") {
+				if (keywords.propertyIsEnumerable(word)) {
+					var kw = keywords[word]
+					return ret(kw.type, kw.style, word)
+				}
+				if (word == "async" && stream.match(/^(\s|\/\*.*?\*\/)*[\[\(\w]/, false))
+					return ret("async", "keyword", word)
+			}
+			return ret("variable", "variable", word)
+		}
+	}
+
+	function tokenString(quote) {
+		return function(stream, state) {
+			var escaped = false, next;
+			if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
+				state.tokenize = tokenBase;
+				return ret("jsonld-keyword", "meta");
+			}
+			while ((next = stream.next()) != null) {
+				if (next == quote && !escaped) break;
+				escaped = !escaped && next == "\\";
+			}
+			if (!escaped) state.tokenize = tokenBase;
+			return ret("string", "string");
+		};
+	}
+
+	function tokenComment(stream, state) {
+		var maybeEnd = false, ch;
+		while (ch = stream.next()) {
+			if (ch == "/" && maybeEnd) {
+				state.tokenize = tokenBase;
+				break;
+			}
+			maybeEnd = (ch == "*");
+		}
+		return ret("comment", "comment");
+	}
+
+	function tokenQuasi(stream, state) {
+		var escaped = false, next;
+		while ((next = stream.next()) != null) {
+			if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
+				state.tokenize = tokenBase;
+				break;
+			}
+			escaped = !escaped && next == "\\";
+		}
+		return ret("quasi", "string-2", stream.current());
+	}
+
+	var brackets = "([{}])";
+	// This is a crude lookahead trick to try and notice that we're
+	// parsing the argument patterns for a fat-arrow function before we
+	// actually hit the arrow token. It only works if the arrow is on
+	// the same line as the arguments and there's no strange noise
+	// (comments) in between. Fallback is to only notice when we hit the
+	// arrow, and not declare the arguments as locals for the arrow
+	// body.
+	function findFatArrow(stream, state) {
+		if (state.fatArrowAt) state.fatArrowAt = null;
+		var arrow = stream.string.indexOf("=>", stream.start);
+		if (arrow < 0) return;
+
+		if (isTS) { // Try to skip TypeScript return type declarations after the arguments
+			var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow))
+			if (m) arrow = m.index
+		}
+
+		var depth = 0, sawSomething = false;
+		for (var pos = arrow - 1; pos >= 0; --pos) {
+			var ch = stream.string.charAt(pos);
+			var bracket = brackets.indexOf(ch);
+			if (bracket >= 0 && bracket < 3) {
+				if (!depth) { ++pos; break; }
+				if (--depth == 0) { if (ch == "(") sawSomething = true; break; }
+			} else if (bracket >= 3 && bracket < 6) {
+				++depth;
+			} else if (wordRE.test(ch)) {
+				sawSomething = true;
+			} else if (/["'\/]/.test(ch)) {
+				return;
+			} else if (sawSomething && !depth) {
+				++pos;
+				break;
+			}
+		}
+		if (sawSomething && !depth) state.fatArrowAt = pos;
+	}
+
+	// Parser
+
+	var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
+
+	function JSLexical(indented, column, type, align, prev, info) {
+		this.indented = indented;
+		this.column = column;
+		this.type = type;
+		this.prev = prev;
+		this.info = info;
+		if (align != null) this.align = align;
+	}
+
+	function inScope(state, varname) {
+		for (var v = state.localVars; v; v = v.next)
+			if (v.name == varname) return true;
+		for (var cx = state.context; cx; cx = cx.prev) {
+			for (var v = cx.vars; v; v = v.next)
+				if (v.name == varname) return true;
+		}
+	}
+
+	function parseJS(state, style, type, content, stream) {
+		var cc = state.cc;
+		// Communicate our context to the combinators.
+		// (Less wasteful than consing up a hundred closures on every call.)
+		cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
+
+		if (!state.lexical.hasOwnProperty("align"))
+			state.lexical.align = true;
+
+		while(true) {
+			var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
+			if (combinator(type, content)) {
+				while(cc.length && cc[cc.length - 1].lex)
+					cc.pop()();
+				if (cx.marked) return cx.marked;
+				if (type == "variable" && inScope(state, content)) return "variable-2";
+				return style;
+			}
+		}
+	}
+
+	// Combinator utils
+
+	var cx = {state: null, column: null, marked: null, cc: null};
+	function pass() {
+		for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
+	}
+	function cont() {
+		pass.apply(null, arguments);
+		return true;
+	}
+	function inList(name, list) {
+		for (var v = list; v; v = v.next) if (v.name == name) return true
+		return false;
+	}
+	function register(varname) {
+		var state = cx.state;
+		cx.marked = "def";
+		if (state.context) {
+			if (state.lexical.info == "var" && state.context && state.context.block) {
+				// FIXME function decls are also not block scoped
+				var newContext = registerVarScoped(varname, state.context)
+				if (newContext != null) {
+					state.context = newContext
+					return
+				}
+			} else if (!inList(varname, state.localVars)) {
+				state.localVars = new Var(varname, state.localVars)
+				return
+			}
+		}
+		// Fall through means this is global
+		if (parserConfig.globalVars && !inList(varname, state.globalVars))
+			state.globalVars = new Var(varname, state.globalVars)
+	}
+	function registerVarScoped(varname, context) {
+		if (!context) {
+			return null
+		} else if (context.block) {
+			var inner = registerVarScoped(varname, context.prev)
+			if (!inner) return null
+			if (inner == context.prev) return context
+			return new Context(inner, context.vars, true)
+		} else if (inList(varname, context.vars)) {
+			return context
+		} else {
+			return new Context(context.prev, new Var(varname, context.vars), false)
+		}
+	}
+
+	function isModifier(name) {
+		return name == "public" || name == "private" || name == "protected" || name == "abstract" || name == "readonly"
+	}
+
+	// Combinators
+
+	function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block }
+	function Var(name, next) { this.name = name; this.next = next }
+
+	var defaultVars = new Var("this", new Var("arguments", null))
+	function pushcontext() {
+		cx.state.context = new Context(cx.state.context, cx.state.localVars, false)
+		cx.state.localVars = defaultVars
+	}
+	function pushblockcontext() {
+		cx.state.context = new Context(cx.state.context, cx.state.localVars, true)
+		cx.state.localVars = null
+	}
+	function popcontext() {
+		cx.state.localVars = cx.state.context.vars
+		cx.state.context = cx.state.context.prev
+	}
+	popcontext.lex = true
+	function pushlex(type, info) {
+		var result = function() {
+			var state = cx.state, indent = state.indented;
+			if (state.lexical.type == "stat") indent = state.lexical.indented;
+			else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
+				indent = outer.indented;
+			state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
+		};
+		result.lex = true;
+		return result;
+	}
+	function poplex() {
+		var state = cx.state;
+		if (state.lexical.prev) {
+			if (state.lexical.type == ")")
+				state.indented = state.lexical.indented;
+			state.lexical = state.lexical.prev;
+		}
+	}
+	poplex.lex = true;
+
+	function expect(wanted) {
+		function exp(type) {
+			if (type == wanted) return cont();
+			else if (wanted == ";" || type == "}" || type == ")" || type == "]") return pass();
+			else return cont(exp);
+		};
+		return exp;
+	}
+
+	function statement(type, value) {
+		if (type == "var") return cont(pushlex("vardef", value), vardef, expect(";"), poplex);
+		if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex);
+		if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
+		if (type == "keyword d") return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex("stat"), maybeexpression, expect(";"), poplex);
+		if (type == "debugger") return cont(expect(";"));
+		if (type == "{") return cont(pushlex("}"), pushblockcontext, block, poplex, popcontext);
+		if (type == ";") return cont();
+		if (type == "if") {
+			if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
+				cx.state.cc.pop()();
+			return cont(pushlex("form"), parenExpr, statement, poplex, maybeelse);
+		}
+		if (type == "function") return cont(functiondef);
+		if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
+		if (type == "class" || (isTS && value == "interface")) {
+			cx.marked = "keyword"
+			return cont(pushlex("form", type == "class" ? type : value), className, poplex)
+		}
+		if (type == "variable") {
+			if (isTS && value == "declare") {
+				cx.marked = "keyword"
+				return cont(statement)
+			} else if (isTS && (value == "module" || value == "enum" || value == "type") && cx.stream.match(/^\s*\w/, false)) {
+				cx.marked = "keyword"
+				if (value == "enum") return cont(enumdef);
+				else if (value == "type") return cont(typename, expect("operator"), typeexpr, expect(";"));
+				else return cont(pushlex("form"), pattern, expect("{"), pushlex("}"), block, poplex, poplex)
+			} else if (isTS && value == "namespace") {
+				cx.marked = "keyword"
+				return cont(pushlex("form"), expression, statement, poplex)
+			} else if (isTS && value == "abstract") {
+				cx.marked = "keyword"
+				return cont(statement)
+			} else {
+				return cont(pushlex("stat"), maybelabel);
+			}
+		}
+		if (type == "switch") return cont(pushlex("form"), parenExpr, expect("{"), pushlex("}", "switch"), pushblockcontext,
+																			block, poplex, poplex, popcontext);
+		if (type == "case") return cont(expression, expect(":"));
+		if (type == "default") return cont(expect(":"));
+		if (type == "catch") return cont(pushlex("form"), pushcontext, maybeCatchBinding, statement, poplex, popcontext);
+		if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
+		if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
+		if (type == "async") return cont(statement)
+		if (value == "@") return cont(expression, statement)
+		return pass(pushlex("stat"), expression, expect(";"), poplex);
+	}
+	function maybeCatchBinding(type) {
+		if (type == "(") return cont(funarg, expect(")"))
+	}
+	function expression(type, value) {
+		return expressionInner(type, value, false);
+	}
+	function expressionNoComma(type, value) {
+		return expressionInner(type, value, true);
+	}
+	function parenExpr(type) {
+		if (type != "(") return pass()
+		return cont(pushlex(")"), expression, expect(")"), poplex)
+	}
+	function expressionInner(type, value, noComma) {
+		if (cx.state.fatArrowAt == cx.stream.start) {
+			var body = noComma ? arrowBodyNoComma : arrowBody;
+			if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, expect("=>"), body, popcontext);
+			else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
+		}
+
+		var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
+		if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
+		if (type == "function") return cont(functiondef, maybeop);
+		if (type == "class" || (isTS && value == "interface")) { cx.marked = "keyword"; return cont(pushlex("form"), classExpression, poplex); }
+		if (type == "keyword c" || type == "async") return cont(noComma ? expressionNoComma : expression);
+		if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
+		if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
+		if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
+		if (type == "{") return contCommasep(objprop, "}", null, maybeop);
+		if (type == "quasi") return pass(quasi, maybeop);
+		if (type == "new") return cont(maybeTarget(noComma));
+		if (type == "import") return cont(expression);
+		return cont();
+	}
+	function maybeexpression(type) {
+		if (type.match(/[;\}\)\],]/)) return pass();
+		return pass(expression);
+	}
+
+	function maybeoperatorComma(type, value) {
+		if (type == ",") return cont(expression);
+		return maybeoperatorNoComma(type, value, false);
+	}
+	function maybeoperatorNoComma(type, value, noComma) {
+		var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
+		var expr = noComma == false ? expression : expressionNoComma;
+		if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
+		if (type == "operator") {
+			if (/\+\+|--/.test(value) || isTS && value == "!") return cont(me);
+			if (isTS && value == "<" && cx.stream.match(/^([^>]|<.*?>)*>\s*\(/, false))
+				return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, me);
+			if (value == "?") return cont(expression, expect(":"), expr);
+			return cont(expr);
+		}
+		if (type == "quasi") { return pass(quasi, me); }
+		if (type == ";") return;
+		if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
+		if (type == ".") return cont(property, me);
+		if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
+		if (isTS && value == "as") { cx.marked = "keyword"; return cont(typeexpr, me) }
+		if (type == "regexp") {
+			cx.state.lastType = cx.marked = "operator"
+			cx.stream.backUp(cx.stream.pos - cx.stream.start - 1)
+			return cont(expr)
+		}
+	}
+	function quasi(type, value) {
+		if (type != "quasi") return pass();
+		if (value.slice(value.length - 2) != "${") return cont(quasi);
+		return cont(expression, continueQuasi);
+	}
+	function continueQuasi(type) {
+		if (type == "}") {
+			cx.marked = "string-2";
+			cx.state.tokenize = tokenQuasi;
+			return cont(quasi);
+		}
+	}
+	function arrowBody(type) {
+		findFatArrow(cx.stream, cx.state);
+		return pass(type == "{" ? statement : expression);
+	}
+	function arrowBodyNoComma(type) {
+		findFatArrow(cx.stream, cx.state);
+		return pass(type == "{" ? statement : expressionNoComma);
+	}
+	function maybeTarget(noComma) {
+		return function(type) {
+			if (type == ".") return cont(noComma ? targetNoComma : target);
+			else if (type == "variable" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma)
+			else return pass(noComma ? expressionNoComma : expression);
+		};
+	}
+	function target(_, value) {
+		if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); }
+	}
+	function targetNoComma(_, value) {
+		if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); }
+	}
+	function maybelabel(type) {
+		if (type == ":") return cont(poplex, statement);
+		return pass(maybeoperatorComma, expect(";"), poplex);
+	}
+	function property(type) {
+		if (type == "variable") {cx.marked = "property"; return cont();}
+	}
+	function objprop(type, value) {
+		if (type == "async") {
+			cx.marked = "property";
+			return cont(objprop);
+		} else if (type == "variable" || cx.style == "keyword") {
+			cx.marked = "property";
+			if (value == "get" || value == "set") return cont(getterSetter);
+			var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params
+			if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false)))
+				cx.state.fatArrowAt = cx.stream.pos + m[0].length
+			return cont(afterprop);
+		} else if (type == "number" || type == "string") {
+			cx.marked = jsonldMode ? "property" : (cx.style + " property");
+			return cont(afterprop);
+		} else if (type == "jsonld-keyword") {
+			return cont(afterprop);
+		} else if (isTS && isModifier(value)) {
+			cx.marked = "keyword"
+			return cont(objprop)
+		} else if (type == "[") {
+			return cont(expression, maybetypeOrIn, expect("]"), afterprop);
+		} else if (type == "spread") {
+			return cont(expressionNoComma, afterprop);
+		} else if (value == "*") {
+			cx.marked = "keyword";
+			return cont(objprop);
+		} else if (type == ":") {
+			return pass(afterprop)
+		}
+	}
+	function getterSetter(type) {
+		if (type != "variable") return pass(afterprop);
+		cx.marked = "property";
+		return cont(functiondef);
+	}
+	function afterprop(type) {
+		if (type == ":") return cont(expressionNoComma);
+		if (type == "(") return pass(functiondef);
+	}
+	function commasep(what, end, sep) {
+		function proceed(type, value) {
+			if (sep ? sep.indexOf(type) > -1 : type == ",") {
+				var lex = cx.state.lexical;
+				if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
+				return cont(function(type, value) {
+					if (type == end || value == end) return pass()
+					return pass(what)
+				}, proceed);
+			}
+			if (type == end || value == end) return cont();
+			if (sep && sep.indexOf(";") > -1) return pass(what)
+			return cont(expect(end));
+		}
+		return function(type, value) {
+			if (type == end || value == end) return cont();
+			return pass(what, proceed);
+		};
+	}
+	function contCommasep(what, end, info) {
+		for (var i = 3; i < arguments.length; i++)
+			cx.cc.push(arguments[i]);
+		return cont(pushlex(end, info), commasep(what, end), poplex);
+	}
+	function block(type) {
+		if (type == "}") return cont();
+		return pass(statement, block);
+	}
+	function maybetype(type, value) {
+		if (isTS) {
+			if (type == ":") return cont(typeexpr);
+			if (value == "?") return cont(maybetype);
+		}
+	}
+	function maybetypeOrIn(type, value) {
+		if (isTS && (type == ":" || value == "in")) return cont(typeexpr)
+	}
+	function mayberettype(type) {
+		if (isTS && type == ":") {
+			if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr)
+			else return cont(typeexpr)
+		}
+	}
+	function isKW(_, value) {
+		if (value == "is") {
+			cx.marked = "keyword"
+			return cont()
+		}
+	}
+	function typeexpr(type, value) {
+		if (value == "keyof" || value == "typeof" || value == "infer") {
+			cx.marked = "keyword"
+			return cont(value == "typeof" ? expressionNoComma : typeexpr)
+		}
+		if (type == "variable" || value == "void") {
+			cx.marked = "type"
+			return cont(afterType)
+		}
+		if (value == "|" || value == "&") return cont(typeexpr)
+		if (type == "string" || type == "number" || type == "atom") return cont(afterType);
+		if (type == "[") return cont(pushlex("]"), commasep(typeexpr, "]", ","), poplex, afterType)
+		if (type == "{") return cont(pushlex("}"), commasep(typeprop, "}", ",;"), poplex, afterType)
+		if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType, afterType)
+		if (type == "<") return cont(commasep(typeexpr, ">"), typeexpr)
+	}
+	function maybeReturnType(type) {
+		if (type == "=>") return cont(typeexpr)
+	}
+	function typeprop(type, value) {
+		if (type == "variable" || cx.style == "keyword") {
+			cx.marked = "property"
+			return cont(typeprop)
+		} else if (value == "?" || type == "number" || type == "string") {
+			return cont(typeprop)
+		} else if (type == ":") {
+			return cont(typeexpr)
+		} else if (type == "[") {
+			return cont(expect("variable"), maybetype, expect("]"), typeprop)
+		} else if (type == "(") {
+			return pass(functiondecl, typeprop)
+		}
+	}
+	function typearg(type, value) {
+		if (type == "variable" && cx.stream.match(/^\s*[?:]/, false) || value == "?") return cont(typearg)
+		if (type == ":") return cont(typeexpr)
+		if (type == "spread") return cont(typearg)
+		return pass(typeexpr)
+	}
+	function afterType(type, value) {
+		if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
+		if (value == "|" || type == "." || value == "&") return cont(typeexpr)
+		if (type == "[") return cont(typeexpr, expect("]"), afterType)
+		if (value == "extends" || value == "implements") { cx.marked = "keyword"; return cont(typeexpr) }
+		if (value == "?") return cont(typeexpr, expect(":"), typeexpr)
+	}
+	function maybeTypeArgs(_, value) {
+		if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
+	}
+	function typeparam() {
+		return pass(typeexpr, maybeTypeDefault)
+	}
+	function maybeTypeDefault(_, value) {
+		if (value == "=") return cont(typeexpr)
+	}
+	function vardef(_, value) {
+		if (value == "enum") {cx.marked = "keyword"; return cont(enumdef)}
+		return pass(pattern, maybetype, maybeAssign, vardefCont);
+	}
+	function pattern(type, value) {
+		if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(pattern) }
+		if (type == "variable") { register(value); return cont(); }
+		if (type == "spread") return cont(pattern);
+		if (type == "[") return contCommasep(eltpattern, "]");
+		if (type == "{") return contCommasep(proppattern, "}");
+	}
+	function proppattern(type, value) {
+		if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
+			register(value);
+			return cont(maybeAssign);
+		}
+		if (type == "variable") cx.marked = "property";
+		if (type == "spread") return cont(pattern);
+		if (type == "}") return pass();
+		if (type == "[") return cont(expression, expect(']'), expect(':'), proppattern);
+		return cont(expect(":"), pattern, maybeAssign);
+	}
+	function eltpattern() {
+		return pass(pattern, maybeAssign)
+	}
+	function maybeAssign(_type, value) {
+		if (value == "=") return cont(expressionNoComma);
+	}
+	function vardefCont(type) {
+		if (type == ",") return cont(vardef);
+	}
+	function maybeelse(type, value) {
+		if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
+	}
+	function forspec(type, value) {
+		if (value == "await") return cont(forspec);
+		if (type == "(") return cont(pushlex(")"), forspec1, poplex);
+	}
+	function forspec1(type) {
+		if (type == "var") return cont(vardef, forspec2);
+		if (type == "variable") return cont(forspec2);
+		return pass(forspec2)
+	}
+	function forspec2(type, value) {
+		if (type == ")") return cont()
+		if (type == ";") return cont(forspec2)
+		if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression, forspec2) }
+		return pass(expression, forspec2)
+	}
+	function functiondef(type, value) {
+		if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
+		if (type == "variable") {register(value); return cont(functiondef);}
+		if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, statement, popcontext);
+		if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondef)
+	}
+	function functiondecl(type, value) {
+		if (value == "*") {cx.marked = "keyword"; return cont(functiondecl);}
+		if (type == "variable") {register(value); return cont(functiondecl);}
+		if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, popcontext);
+		if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondecl)
+	}
+	function typename(type, value) {
+		if (type == "keyword" || type == "variable") {
+			cx.marked = "type"
+			return cont(typename)
+		} else if (value == "<") {
+			return cont(pushlex(">"), commasep(typeparam, ">"), poplex)
+		}
+	}
+	function funarg(type, value) {
+		if (value == "@") cont(expression, funarg)
+		if (type == "spread") return cont(funarg);
+		if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(funarg); }
+		if (isTS && type == "this") return cont(maybetype, maybeAssign)
+		return pass(pattern, maybetype, maybeAssign);
+	}
+	function classExpression(type, value) {
+		// Class expressions may have an optional name.
+		if (type == "variable") return className(type, value);
+		return classNameAfter(type, value);
+	}
+	function className(type, value) {
+		if (type == "variable") {register(value); return cont(classNameAfter);}
+	}
+	function classNameAfter(type, value) {
+		if (value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, classNameAfter)
+		if (value == "extends" || value == "implements" || (isTS && type == ",")) {
+			if (value == "implements") cx.marked = "keyword";
+			return cont(isTS ? typeexpr : expression, classNameAfter);
+		}
+		if (type == "{") return cont(pushlex("}"), classBody, poplex);
+	}
+	function classBody(type, value) {
+		if (type == "async" ||
+				(type == "variable" &&
+				 (value == "static" || value == "get" || value == "set" || (isTS && isModifier(value))) &&
+				 cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))) {
+			cx.marked = "keyword";
+			return cont(classBody);
+		}
+		if (type == "variable" || cx.style == "keyword") {
+			cx.marked = "property";
+			return cont(isTS ? classfield : functiondef, classBody);
+		}
+		if (type == "number" || type == "string") return cont(isTS ? classfield : functiondef, classBody);
+		if (type == "[")
+			return cont(expression, maybetype, expect("]"), isTS ? classfield : functiondef, classBody)
+		if (value == "*") {
+			cx.marked = "keyword";
+			return cont(classBody);
+		}
+		if (isTS && type == "(") return pass(functiondecl, classBody)
+		if (type == ";" || type == ",") return cont(classBody);
+		if (type == "}") return cont();
+		if (value == "@") return cont(expression, classBody)
+	}
+	function classfield(type, value) {
+		if (value == "?") return cont(classfield)
+		if (type == ":") return cont(typeexpr, maybeAssign)
+		if (value == "=") return cont(expressionNoComma)
+		var context = cx.state.lexical.prev, isInterface = context && context.info == "interface"
+		return pass(isInterface ? functiondecl : functiondef)
+	}
+	function afterExport(type, value) {
+		if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
+		if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
+		if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";"));
+		return pass(statement);
+	}
+	function exportField(type, value) {
+		if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); }
+		if (type == "variable") return pass(expressionNoComma, exportField);
+	}
+	function afterImport(type) {
+		if (type == "string") return cont();
+		if (type == "(") return pass(expression);
+		return pass(importSpec, maybeMoreImports, maybeFrom);
+	}
+	function importSpec(type, value) {
+		if (type == "{") return contCommasep(importSpec, "}");
+		if (type == "variable") register(value);
+		if (value == "*") cx.marked = "keyword";
+		return cont(maybeAs);
+	}
+	function maybeMoreImports(type) {
+		if (type == ",") return cont(importSpec, maybeMoreImports)
+	}
+	function maybeAs(_type, value) {
+		if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
+	}
+	function maybeFrom(_type, value) {
+		if (value == "from") { cx.marked = "keyword"; return cont(expression); }
+	}
+	function arrayLiteral(type) {
+		if (type == "]") return cont();
+		return pass(commasep(expressionNoComma, "]"));
+	}
+	function enumdef() {
+		return pass(pushlex("form"), pattern, expect("{"), pushlex("}"), commasep(enummember, "}"), poplex, poplex)
+	}
+	function enummember() {
+		return pass(pattern, maybeAssign);
+	}
+
+	function isContinuedStatement(state, textAfter) {
+		return state.lastType == "operator" || state.lastType == "," ||
+			isOperatorChar.test(textAfter.charAt(0)) ||
+			/[,.]/.test(textAfter.charAt(0));
+	}
+
+	function expressionAllowed(stream, state, backUp) {
+		return state.tokenize == tokenBase &&
+			/^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
+			(state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
+	}
+
+	// Interface
+
+	return {
+		startState: function(basecolumn) {
+			var state = {
+				tokenize: tokenBase,
+				lastType: "sof",
+				cc: [],
+				lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+				localVars: parserConfig.localVars,
+				context: parserConfig.localVars && new Context(null, null, false),
+				indented: basecolumn || 0
+			};
+			if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
+				state.globalVars = parserConfig.globalVars;
+			return state;
+		},
+
+		token: function(stream, state) {
+			if (stream.sol()) {
+				if (!state.lexical.hasOwnProperty("align"))
+					state.lexical.align = false;
+				state.indented = stream.indentation();
+				findFatArrow(stream, state);
+			}
+			if (state.tokenize != tokenComment && stream.eatSpace()) return null;
+			var style = state.tokenize(stream, state);
+			if (type == "comment") return style;
+			state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
+			return parseJS(state, style, type, content, stream);
+		},
+
+		indent: function(state, textAfter) {
+			if (state.tokenize == tokenComment) return CodeMirror.Pass;
+			if (state.tokenize != tokenBase) return 0;
+			var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top
+			// Kludge to prevent 'maybelse' from blocking lexical scope pops
+			if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
+				var c = state.cc[i];
+				if (c == poplex) lexical = lexical.prev;
+				else if (c != maybeelse) break;
+			}
+			while ((lexical.type == "stat" || lexical.type == "form") &&
+						 (firstChar == "}" || ((top = state.cc[state.cc.length - 1]) &&
+																	 (top == maybeoperatorComma || top == maybeoperatorNoComma) &&
+																	 !/^[,\.=+\-*:?[\(]/.test(textAfter))))
+				lexical = lexical.prev;
+			if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
+				lexical = lexical.prev;
+			var type = lexical.type, closing = firstChar == type;
+
+			if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info.length + 1 : 0);
+			else if (type == "form" && firstChar == "{") return lexical.indented;
+			else if (type == "form") return lexical.indented + indentUnit;
+			else if (type == "stat")
+				return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
+			else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
+				return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
+			else if (lexical.align) return lexical.column + (closing ? 0 : 1);
+			else return lexical.indented + (closing ? 0 : indentUnit);
+		},
+
+		electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
+		blockCommentStart: jsonMode ? null : "/*",
+		blockCommentEnd: jsonMode ? null : "*/",
+		blockCommentContinue: jsonMode ? null : " * ",
+		lineComment: jsonMode ? null : "//",
+		fold: "brace",
+		closeBrackets: "()[]{}''\"\"``",
+
+		helperType: jsonMode ? "json" : "javascript",
+		jsonldMode: jsonldMode,
+		jsonMode: jsonMode,
+
+		expressionAllowed: expressionAllowed,
+
+		skipExpression: function(state) {
+			var top = state.cc[state.cc.length - 1]
+			if (top == expression || top == expressionNoComma) state.cc.pop()
+		}
+	};
+});
+
+CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
+
+CodeMirror.defineMIME("text/javascript", "javascript");
+CodeMirror.defineMIME("text/ecmascript", "javascript");
+CodeMirror.defineMIME("application/javascript", "javascript");
+CodeMirror.defineMIME("application/x-javascript", "javascript");
+CodeMirror.defineMIME("application/ecmascript", "javascript");
+CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
+CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
+CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
+
+});
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+	if (typeof exports == "object" && typeof module == "object") // CommonJS
+		mod(require("../../lib/codemirror"));
+	else if (typeof define == "function" && define.amd) // AMD
+		define(["../../lib/codemirror"], mod);
+	else // Plain browser env
+		mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("css", function(config, parserConfig) {
+	var inline = parserConfig.inline
+	if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css");
+
+	var indentUnit = config.indentUnit,
+			tokenHooks = parserConfig.tokenHooks,
+			documentTypes = parserConfig.documentTypes || {},
+			mediaTypes = parserConfig.mediaTypes || {},
+			mediaFeatures = parserConfig.mediaFeatures || {},
+			mediaValueKeywords = parserConfig.mediaValueKeywords || {},
+			propertyKeywords = parserConfig.propertyKeywords || {},
+			nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},
+			fontProperties = parserConfig.fontProperties || {},
+			counterDescriptors = parserConfig.counterDescriptors || {},
+			colorKeywords = parserConfig.colorKeywords || {},
+			valueKeywords = parserConfig.valueKeywords || {},
+			allowNested = parserConfig.allowNested,
+			lineComment = parserConfig.lineComment,
+			supportsAtComponent = parserConfig.supportsAtComponent === true;
+
+	var type, override;
+	function ret(style, tp) { type = tp; return style; }
+
+	// Tokenizers
+
+	function tokenBase(stream, state) {
+		var ch = stream.next();
+		if (tokenHooks[ch]) {
+			var result = tokenHooks[ch](stream, state);
+			if (result !== false) return result;
+		}
+		if (ch == "@") {
+			stream.eatWhile(/[\w\\\-]/);
+			return ret("def", stream.current());
+		} else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) {
+			return ret(null, "compare");
+		} else if (ch == "\"" || ch == "'") {
+			state.tokenize = tokenString(ch);
+			return state.tokenize(stream, state);
+		} else if (ch == "#") {
+			stream.eatWhile(/[\w\\\-]/);
+			return ret("atom", "hash");
+		} else if (ch == "!") {
+			stream.match(/^\s*\w*/);
+			return ret("keyword", "important");
+		} else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) {
+			stream.eatWhile(/[\w.%]/);
+			return ret("number", "unit");
+		} else if (ch === "-") {
+			if (/[\d.]/.test(stream.peek())) {
+				stream.eatWhile(/[\w.%]/);
+				return ret("number", "unit");
+			} else if (stream.match(/^-[\w\\\-]*/)) {
+				stream.eatWhile(/[\w\\\-]/);
+				if (stream.match(/^\s*:/, false))
+					return ret("variable-2", "variable-definition");
+				return ret("variable-2", "variable");
+			} else if (stream.match(/^\w+-/)) {
+				return ret("meta", "meta");
+			}
+		} else if (/[,+>*\/]/.test(ch)) {
+			return ret(null, "select-op");
+		} else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) {
+			return ret("qualifier", "qualifier");
+		} else if (/[:;{}\[\]\(\)]/.test(ch)) {
+			return ret(null, ch);
+		} else if (stream.match(/[\w-.]+(?=\()/)) {
+			if (/^(url(-prefix)?|domain|regexp)$/.test(stream.current().toLowerCase())) {
+				state.tokenize = tokenParenthesized;
+			}
+			return ret("variable callee", "variable");
+		} else if (/[\w\\\-]/.test(ch)) {
+			stream.eatWhile(/[\w\\\-]/);
+			return ret("property", "word");
+		} else {
+			return ret(null, null);
+		}
+	}
+
+	function tokenString(quote) {
+		return function(stream, state) {
+			var escaped = false, ch;
+			while ((ch = stream.next()) != null) {
+				if (ch == quote && !escaped) {
+					if (quote == ")") stream.backUp(1);
+					break;
+				}
+				escaped = !escaped && ch == "\\";
+			}
+			if (ch == quote || !escaped && quote != ")") state.tokenize = null;
+			return ret("string", "string");
+		};
+	}
+
+	function tokenParenthesized(stream, state) {
+		stream.next(); // Must be '('
+		if (!stream.match(/\s*[\"\')]/, false))
+			state.tokenize = tokenString(")");
+		else
+			state.tokenize = null;
+		return ret(null, "(");
+	}
+
+	// Context management
+
+	function Context(type, indent, prev) {
+		this.type = type;
+		this.indent = indent;
+		this.prev = prev;
+	}
+
+	function pushContext(state, stream, type, indent) {
+		state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context);
+		return type;
+	}
+
+	function popContext(state) {
+		if (state.context.prev)
+			state.context = state.context.prev;
+		return state.context.type;
+	}
+
+	function pass(type, stream, state) {
+		return states[state.context.type](type, stream, state);
+	}
+	function popAndPass(type, stream, state, n) {
+		for (var i = n || 1; i > 0; i--)
+			state.context = state.context.prev;
+		return pass(type, stream, state);
+	}
+
+	// Parser
+
+	function wordAsValue(stream) {
+		var word = stream.current().toLowerCase();
+		if (valueKeywords.hasOwnProperty(word))
+			override = "atom";
+		else if (colorKeywords.hasOwnProperty(word))
+			override = "keyword";
+		else
+			override = "variable";
+	}
+
+	var states = {};
+
+	states.top = function(type, stream, state) {
+		if (type == "{") {
+			return pushContext(state, stream, "block");
+		} else if (type == "}" && state.context.prev) {
+			return popContext(state);
+		} else if (supportsAtComponent && /@component/i.test(type)) {
+			return pushContext(state, stream, "atComponentBlock");
+		} else if (/^@(-moz-)?document$/i.test(type)) {
+			return pushContext(state, stream, "documentTypes");
+		} else if (/^@(media|supports|(-moz-)?document|import)$/i.test(type)) {
+			return pushContext(state, stream, "atBlock");
+		} else if (/^@(font-face|counter-style)/i.test(type)) {
+			state.stateArg = type;
+			return "restricted_atBlock_before";
+		} else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/i.test(type)) {
+			return "keyframes";
+		} else if (type && type.charAt(0) == "@") {
+			return pushContext(state, stream, "at");
+		} else if (type == "hash") {
+			override = "builtin";
+		} else if (type == "word") {
+			override = "tag";
+		} else if (type == "variable-definition") {
+			return "maybeprop";
+		} else if (type == "interpolation") {
+			return pushContext(state, stream, "interpolation");
+		} else if (type == ":") {
+			return "pseudo";
+		} else if (allowNested && type == "(") {
+			return pushContext(state, stream, "parens");
+		}
+		return state.context.type;
+	};
+
+	states.block = function(type, stream, state) {
+		if (type == "word") {
+			var word = stream.current().toLowerCase();
+			if (propertyKeywords.hasOwnProperty(word)) {
+				override = "property";
+				return "maybeprop";
+			} else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {
+				override = "string-2";
+				return "maybeprop";
+			} else if (allowNested) {
+				override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag";
+				return "block";
+			} else {
+				override += " error";
+				return "maybeprop";
+			}
+		} else if (type == "meta") {
+			return "block";
+		} else if (!allowNested && (type == "hash" || type == "qualifier")) {
+			override = "error";
+			return "block";
+		} else {
+			return states.top(type, stream, state);
+		}
+	};
+
+	states.maybeprop = function(type, stream, state) {
+		if (type == ":") return pushContext(state, stream, "prop");
+		return pass(type, stream, state);
+	};
+
+	states.prop = function(type, stream, state) {
+		if (type == ";") return popContext(state);
+		if (type == "{" && allowNested) return pushContext(state, stream, "propBlock");
+		if (type == "}" || type == "{") return popAndPass(type, stream, state);
+		if (type == "(") return pushContext(state, stream, "parens");
+
+		if (type == "hash" && !/^#([0-9a-fA-f]{3,4}|[0-9a-fA-f]{6}|[0-9a-fA-f]{8})$/.test(stream.current())) {
+			override += " error";
+		} else if (type == "word") {
+			wordAsValue(stream);
+		} else if (type == "interpolation") {
+			return pushContext(state, stream, "interpolation");
+		}
+		return "prop";
+	};
+
+	states.propBlock = function(type, _stream, state) {
+		if (type == "}") return popContext(state);
+		if (type == "word") { override = "property"; return "maybeprop"; }
+		return state.context.type;
+	};
+
+	states.parens = function(type, stream, state) {
+		if (type == "{" || type == "}") return popAndPass(type, stream, state);
+		if (type == ")") return popContext(state);
+		if (type == "(") return pushContext(state, stream, "parens");
+		if (type == "interpolation") return pushContext(state, stream, "interpolation");
+		if (type == "word") wordAsValue(stream);
+		return "parens";
+	};
+
+	states.pseudo = function(type, stream, state) {
+		if (type == "meta") return "pseudo";
+
+		if (type == "word") {
+			override = "variable-3";
+			return state.context.type;
+		}
+		return pass(type, stream, state);
+	};
+
+	states.documentTypes = function(type, stream, state) {
+		if (type == "word" && documentTypes.hasOwnProperty(stream.current())) {
+			override = "tag";
+			return state.context.type;
+		} else {
+			return states.atBlock(type, stream, state);
+		}
+	};
+
+	states.atBlock = function(type, stream, state) {
+		if (type == "(") return pushContext(state, stream, "atBlock_parens");
+		if (type == "}" || type == ";") return popAndPass(type, stream, state);
+		if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top");
+
+		if (type == "interpolation") return pushContext(state, stream, "interpolation");
+
+		if (type == "word") {
+			var word = stream.current().toLowerCase();
+			if (word == "only" || word == "not" || word == "and" || word == "or")
+				override = "keyword";
+			else if (mediaTypes.hasOwnProperty(word))
+				override = "attribute";
+			else if (mediaFeatures.hasOwnProperty(word))
+				override = "property";
+			else if (mediaValueKeywords.hasOwnProperty(word))
+				override = "keyword";
+			else if (propertyKeywords.hasOwnProperty(word))
+				override = "property";
+			else if (nonStandardPropertyKeywords.hasOwnProperty(word))
+				override = "string-2";
+			else if (valueKeywords.hasOwnProperty(word))
+				override = "atom";
+			else if (colorKeywords.hasOwnProperty(word))
+				override = "keyword";
+			else
+				override = "error";
+		}
+		return state.context.type;
+	};
+
+	states.atComponentBlock = function(type, stream, state) {
+		if (type == "}")
+			return popAndPass(type, stream, state);
+		if (type == "{")
+			return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false);
+		if (type == "word")
+			override = "error";
+		return state.context.type;
+	};
+
+	states.atBlock_parens = function(type, stream, state) {
+		if (type == ")") return popContext(state);
+		if (type == "{" || type == "}") return popAndPass(type, stream, state, 2);
+		return states.atBlock(type, stream, state);
+	};
+
+	states.restricted_atBlock_before = function(type, stream, state) {
+		if (type == "{")
+			return pushContext(state, stream, "restricted_atBlock");
+		if (type == "word" && state.stateArg == "@counter-style") {
+			override = "variable";
+			return "restricted_atBlock_before";
+		}
+		return pass(type, stream, state);
+	};
+
+	states.restricted_atBlock = function(type, stream, state) {
+		if (type == "}") {
+			state.stateArg = null;
+			return popContext(state);
+		}
+		if (type == "word") {
+			if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||
+					(state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))
+				override = "error";
+			else
+				override = "property";
+			return "maybeprop";
+		}
+		return "restricted_atBlock";
+	};
+
+	states.keyframes = function(type, stream, state) {
+		if (type == "word") { override = "variable"; return "keyframes"; }
+		if (type == "{") return pushContext(state, stream, "top");
+		return pass(type, stream, state);
+	};
+
+	states.at = function(type, stream, state) {
+		if (type == ";") return popContext(state);
+		if (type == "{" || type == "}") return popAndPass(type, stream, state);
+		if (type == "word") override = "tag";
+		else if (type == "hash") override = "builtin";
+		return "at";
+	};
+
+	states.interpolation = function(type, stream, state) {
+		if (type == "}") return popContext(state);
+		if (type == "{" || type == ";") return popAndPass(type, stream, state);
+		if (type == "word") override = "variable";
+		else if (type != "variable" && type != "(" && type != ")") override = "error";
+		return "interpolation";
+	};
+
+	return {
+		startState: function(base) {
+			return {tokenize: null,
+							state: inline ? "block" : "top",
+							stateArg: null,
+							context: new Context(inline ? "block" : "top", base || 0, null)};
+		},
+
+		token: function(stream, state) {
+			if (!state.tokenize && stream.eatSpace()) return null;
+			var style = (state.tokenize || tokenBase)(stream, state);
+			if (style && typeof style == "object") {
+				type = style[1];
+				style = style[0];
+			}
+			override = style;
+			if (type != "comment")
+				state.state = states[state.state](type, stream, state);
+			return override;
+		},
+
+		indent: function(state, textAfter) {
+			var cx = state.context, ch = textAfter && textAfter.charAt(0);
+			var indent = cx.indent;
+			if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev;
+			if (cx.prev) {
+				if (ch == "}" && (cx.type == "block" || cx.type == "top" ||
+													cx.type == "interpolation" || cx.type == "restricted_atBlock")) {
+					// Resume indentation from parent context.
+					cx = cx.prev;
+					indent = cx.indent;
+				} else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
+						ch == "{" && (cx.type == "at" || cx.type == "atBlock")) {
+					// Dedent relative to current context.
+					indent = Math.max(0, cx.indent - indentUnit);
+				}
+			}
+			return indent;
+		},
+
+		electricChars: "}",
+		blockCommentStart: "/*",
+		blockCommentEnd: "*/",
+		blockCommentContinue: " * ",
+		lineComment: lineComment,
+		fold: "brace"
+	};
+});
+
+	function keySet(array) {
+		var keys = {};
+		for (var i = 0; i < array.length; ++i) {
+			keys[array[i].toLowerCase()] = true;
+		}
+		return keys;
+	}
+
+	var documentTypes_ = [
+		"domain", "regexp", "url", "url-prefix"
+	], documentTypes = keySet(documentTypes_);
+
+	var mediaTypes_ = [
+		"all", "aural", "braille", "handheld", "print", "projection", "screen",
+		"tty", "tv", "embossed"
+	], mediaTypes = keySet(mediaTypes_);
+
+	var mediaFeatures_ = [
+		"width", "min-width", "max-width", "height", "min-height", "max-height",
+		"device-width", "min-device-width", "max-device-width", "device-height",
+		"min-device-height", "max-device-height", "aspect-ratio",
+		"min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
+		"min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
+		"max-color", "color-index", "min-color-index", "max-color-index",
+		"monochrome", "min-monochrome", "max-monochrome", "resolution",
+		"min-resolution", "max-resolution", "scan", "grid", "orientation",
+		"device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio",
+		"pointer", "any-pointer", "hover", "any-hover"
+	], mediaFeatures = keySet(mediaFeatures_);
+
+	var mediaValueKeywords_ = [
+		"landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover",
+		"interlace", "progressive"
+	], mediaValueKeywords = keySet(mediaValueKeywords_);
+
+	var propertyKeywords_ = [
+		"align-content", "align-items", "align-self", "alignment-adjust",
+		"alignment-baseline", "anchor-point", "animation", "animation-delay",
+		"animation-direction", "animation-duration", "animation-fill-mode",
+		"animation-iteration-count", "animation-name", "animation-play-state",
+		"animation-timing-function", "appearance", "azimuth", "backface-visibility",
+		"background", "background-attachment", "background-blend-mode", "background-clip",
+		"background-color", "background-image", "background-origin", "background-position",
+		"background-repeat", "background-size", "baseline-shift", "binding",
+		"bleed", "bookmark-label", "bookmark-level", "bookmark-state",
+		"bookmark-target", "border", "border-bottom", "border-bottom-color",
+		"border-bottom-left-radius", "border-bottom-right-radius",
+		"border-bottom-style", "border-bottom-width", "border-collapse",
+		"border-color", "border-image", "border-image-outset",
+		"border-image-repeat", "border-image-slice", "border-image-source",
+		"border-image-width", "border-left", "border-left-color",
+		"border-left-style", "border-left-width", "border-radius", "border-right",
+		"border-right-color", "border-right-style", "border-right-width",
+		"border-spacing", "border-style", "border-top", "border-top-color",
+		"border-top-left-radius", "border-top-right-radius", "border-top-style",
+		"border-top-width", "border-width", "bottom", "box-decoration-break",
+		"box-shadow", "box-sizing", "break-after", "break-before", "break-inside",
+		"caption-side", "caret-color", "clear", "clip", "color", "color-profile", "column-count",
+		"column-fill", "column-gap", "column-rule", "column-rule-color",
+		"column-rule-style", "column-rule-width", "column-span", "column-width",
+		"columns", "content", "counter-increment", "counter-reset", "crop", "cue",
+		"cue-after", "cue-before", "cursor", "direction", "display",
+		"dominant-baseline", "drop-initial-after-adjust",
+		"drop-initial-after-align", "drop-initial-before-adjust",
+		"drop-initial-before-align", "drop-initial-size", "drop-initial-value",
+		"elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis",
+		"flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap",
+		"float", "float-offset", "flow-from", "flow-into", "font", "font-feature-settings",
+		"font-family", "font-kerning", "font-language-override", "font-size", "font-size-adjust",
+		"font-stretch", "font-style", "font-synthesis", "font-variant",
+		"font-variant-alternates", "font-variant-caps", "font-variant-east-asian",
+		"font-variant-ligatures", "font-variant-numeric", "font-variant-position",
+		"font-weight", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow",
+		"grid-auto-rows", "grid-column", "grid-column-end", "grid-column-gap",
+		"grid-column-start", "grid-gap", "grid-row", "grid-row-end", "grid-row-gap",
+		"grid-row-start", "grid-template", "grid-template-areas", "grid-template-columns",
+		"grid-template-rows", "hanging-punctuation", "height", "hyphens",
+		"icon", "image-orientation", "image-rendering", "image-resolution",
+		"inline-box-align", "justify-content", "justify-items", "justify-self", "left", "letter-spacing",
+		"line-break", "line-height", "line-stacking", "line-stacking-ruby",
+		"line-stacking-shift", "line-stacking-strategy", "list-style",
+		"list-style-image", "list-style-position", "list-style-type", "margin",
+		"margin-bottom", "margin-left", "margin-right", "margin-top",
+		"marks", "marquee-direction", "marquee-loop",
+		"marquee-play-count", "marquee-speed", "marquee-style", "max-height",
+		"max-width", "min-height", "min-width", "mix-blend-mode", "move-to", "nav-down", "nav-index",
+		"nav-left", "nav-right", "nav-up", "object-fit", "object-position",
+		"opacity", "order", "orphans", "outline",
+		"outline-color", "outline-offset", "outline-style", "outline-width",
+		"overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y",
+		"padding", "padding-bottom", "padding-left", "padding-right", "padding-top",
+		"page", "page-break-after", "page-break-before", "page-break-inside",
+		"page-policy", "pause", "pause-after", "pause-before", "perspective",
+		"perspective-origin", "pitch", "pitch-range", "place-content", "place-items", "place-self", "play-during", "position",
+		"presentation-level", "punctuation-trim", "quotes", "region-break-after",
+		"region-break-before", "region-break-inside", "region-fragment",
+		"rendering-intent", "resize", "rest", "rest-after", "rest-before", "richness",
+		"right", "rotation", "rotation-point", "ruby-align", "ruby-overhang",
+		"ruby-position", "ruby-span", "shape-image-threshold", "shape-inside", "shape-margin",
+		"shape-outside", "size", "speak", "speak-as", "speak-header",
+		"speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set",
+		"tab-size", "table-layout", "target", "target-name", "target-new",
+		"target-position", "text-align", "text-align-last", "text-decoration",
+		"text-decoration-color", "text-decoration-line", "text-decoration-skip",
+		"text-decoration-style", "text-emphasis", "text-emphasis-color",
+		"text-emphasis-position", "text-emphasis-style", "text-height",
+		"text-indent", "text-justify", "text-outline", "text-overflow", "text-shadow",
+		"text-size-adjust", "text-space-collapse", "text-transform", "text-underline-position",
+		"text-wrap", "top", "transform", "transform-origin", "transform-style",
+		"transition", "transition-delay", "transition-duration",
+		"transition-property", "transition-timing-function", "unicode-bidi",
+		"user-select", "vertical-align", "visibility", "voice-balance", "voice-duration",
+		"voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress",
+		"voice-volume", "volume", "white-space", "widows", "width", "will-change", "word-break",
+		"word-spacing", "word-wrap", "z-index",
+		// SVG-specific
+		"clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color",
+		"flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events",
+		"color-interpolation", "color-interpolation-filters",
+		"color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering",
+		"marker", "marker-end", "marker-mid", "marker-start", "shape-rendering", "stroke",
+		"stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin",
+		"stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering",
+		"baseline-shift", "dominant-baseline", "glyph-orientation-horizontal",
+		"glyph-orientation-vertical", "text-anchor", "writing-mode"
+	], propertyKeywords = keySet(propertyKeywords_);
+
+	var nonStandardPropertyKeywords_ = [
+		"scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color",
+		"scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color",
+		"scrollbar-3d-light-color", "scrollbar-track-color", "shape-inside",
+		"searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button",
+		"searchfield-results-decoration", "zoom"
+	], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);
+
+	var fontProperties_ = [
+		"font-family", "src", "unicode-range", "font-variant", "font-feature-settings",
+		"font-stretch", "font-weight", "font-style"
+	], fontProperties = keySet(fontProperties_);
+
+	var counterDescriptors_ = [
+		"additive-symbols", "fallback", "negative", "pad", "prefix", "range",
+		"speak-as", "suffix", "symbols", "system"
+	], counterDescriptors = keySet(counterDescriptors_);
+
+	var colorKeywords_ = [
+		"aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige",
+		"bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown",
+		"burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue",
+		"cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod",
+		"darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen",
+		"darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen",
+		"darkslateblue", "darkslategray", "darkturquoise", "darkviolet",
+		"deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick",
+		"floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite",
+		"gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew",
+		"hotpink", "indianred", "indigo", "ivory", "khaki", "lavender",
+		"lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral",
+		"lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink",
+		"lightsalmon", "lightseagreen", "lightskyblue", "lightslategray",
+		"lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta",
+		"maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple",
+		"mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise",
+		"mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin",
+		"navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered",
+		"orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred",
+		"papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue",
+		"purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown",
+		"salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue",
+		"slateblue", "slategray", "snow", "springgreen", "steelblue", "tan",
+		"teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white",
+		"whitesmoke", "yellow", "yellowgreen"
+	], colorKeywords = keySet(colorKeywords_);
+
+	var valueKeywords_ = [
+		"above", "absolute", "activeborder", "additive", "activecaption", "afar",
+		"after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate",
+		"always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
+		"arabic-indic", "armenian", "asterisks", "attr", "auto", "auto-flow", "avoid", "avoid-column", "avoid-page",
+		"avoid-region", "background", "backwards", "baseline", "below", "bidi-override", "binary",
+		"bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box",
+		"both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel",
+		"buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian",
+		"capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
+		"cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch",
+		"cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
+		"col-resize", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse",
+		"compact", "condensed", "contain", "content", "contents",
+		"content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop",
+		"cross", "crosshair", "currentcolor", "cursive", "cyclic", "darken", "dashed", "decimal",
+		"decimal-leading-zero", "default", "default-button", "dense", "destination-atop",
+		"destination-in", "destination-out", "destination-over", "devanagari", "difference",
+		"disc", "discard", "disclosure-closed", "disclosure-open", "document",
+		"dot-dash", "dot-dot-dash",
+		"dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
+		"element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
+		"ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
+		"ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
+		"ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
+		"ethiopic-halehame-gez", "ethiopic-halehame-om-et",
+		"ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
+		"ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig",
+		"ethiopic-numeric", "ew-resize", "exclusion", "expanded", "extends", "extra-condensed",
+		"extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes",
+		"forwards", "from", "geometricPrecision", "georgian", "graytext", "grid", "groove",
+		"gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hard-light", "hebrew",
+		"help", "hidden", "hide", "higher", "highlight", "highlighttext",
+		"hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "hue", "icon", "ignore",
+		"inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
+		"infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
+		"inline-block", "inline-flex", "inline-grid", "inline-table", "inset", "inside", "intrinsic", "invert",
+		"italic", "japanese-formal", "japanese-informal", "justify", "kannada",
+		"katakana", "katakana-iroha", "keep-all", "khmer",
+		"korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal",
+		"landscape", "lao", "large", "larger", "left", "level", "lighter", "lighten",
+		"line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem",
+		"local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
+		"lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
+		"lower-roman", "lowercase", "ltr", "luminosity", "malayalam", "match", "matrix", "matrix3d",
+		"media-controls-background", "media-current-time-display",
+		"media-fullscreen-button", "media-mute-button", "media-play-button",
+		"media-return-to-realtime-button", "media-rewind-button",
+		"media-seek-back-button", "media-seek-forward-button", "media-slider",
+		"media-sliderthumb", "media-time-remaining-display", "media-volume-slider",
+		"media-volume-slider-container", "media-volume-sliderthumb", "medium",
+		"menu", "menulist", "menulist-button", "menulist-text",
+		"menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic",
+		"mix", "mongolian", "monospace", "move", "multiple", "multiply", "myanmar", "n-resize",
+		"narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
+		"no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
+		"ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "opacity", "open-quote",
+		"optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
+		"outside", "outside-shape", "overlay", "overline", "padding", "padding-box",
+		"painted", "page", "paused", "persian", "perspective", "plus-darker", "plus-lighter",
+		"pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d",
+		"progress", "push-button", "radial-gradient", "radio", "read-only",
+		"read-write", "read-write-plaintext-only", "rectangle", "region",
+		"relative", "repeat", "repeating-linear-gradient",
+		"repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse",
+		"rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY",
+		"rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running",
+		"s-resize", "sans-serif", "saturation", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "screen",
+		"scroll", "scrollbar", "scroll-position", "se-resize", "searchfield",
+		"searchfield-cancel-button", "searchfield-decoration",
+		"searchfield-results-button", "searchfield-results-decoration", "self-start", "self-end",
+		"semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama",
+		"simp-chinese-formal", "simp-chinese-informal", "single",
+		"skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal",
+		"slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
+		"small", "small-caps", "small-caption", "smaller", "soft-light", "solid", "somali",
+		"source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "space-evenly", "spell-out", "square",
+		"square-button", "start", "static", "status-bar", "stretch", "stroke", "sub",
+		"subpixel-antialiased", "super", "sw-resize", "symbolic", "symbols", "system-ui", "table",
+		"table-caption", "table-cell", "table-column", "table-column-group",
+		"table-footer-group", "table-header-group", "table-row", "table-row-group",
+		"tamil",
+		"telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
+		"thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
+		"threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
+		"tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
+		"trad-chinese-formal", "trad-chinese-informal", "transform",
+		"translate", "translate3d", "translateX", "translateY", "translateZ",
+		"transparent", "ultra-condensed", "ultra-expanded", "underline", "unset", "up",
+		"upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
+		"upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
+		"var", "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted",
+		"visibleStroke", "visual", "w-resize", "wait", "wave", "wider",
+		"window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor",
+		"xx-large", "xx-small"
+	], valueKeywords = keySet(valueKeywords_);
+
+	var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_)
+		.concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_)
+		.concat(valueKeywords_);
+	CodeMirror.registerHelper("hintWords", "css", allWords);
+
+	function tokenCComment(stream, state) {
+		var maybeEnd = false, ch;
+		while ((ch = stream.next()) != null) {
+			if (maybeEnd && ch == "/") {
+				state.tokenize = null;
+				break;
+			}
+			maybeEnd = (ch == "*");
+		}
+		return ["comment", "comment"];
+	}
+
+	CodeMirror.defineMIME("text/css", {
+		documentTypes: documentTypes,
+		mediaTypes: mediaTypes,
+		mediaFeatures: mediaFeatures,
+		mediaValueKeywords: mediaValueKeywords,
+		propertyKeywords: propertyKeywords,
+		nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+		fontProperties: fontProperties,
+		counterDescriptors: counterDescriptors,
+		colorKeywords: colorKeywords,
+		valueKeywords: valueKeywords,
+		tokenHooks: {
+			"/": function(stream, state) {
+				if (!stream.eat("*")) return false;
+				state.tokenize = tokenCComment;
+				return tokenCComment(stream, state);
+			}
+		},
+		name: "css"
+	});
+
+	CodeMirror.defineMIME("text/x-scss", {
+		mediaTypes: mediaTypes,
+		mediaFeatures: mediaFeatures,
+		mediaValueKeywords: mediaValueKeywords,
+		propertyKeywords: propertyKeywords,
+		nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+		colorKeywords: colorKeywords,
+		valueKeywords: valueKeywords,
+		fontProperties: fontProperties,
+		allowNested: true,
+		lineComment: "//",
+		tokenHooks: {
+			"/": function(stream, state) {
+				if (stream.eat("/")) {
+					stream.skipToEnd();
+					return ["comment", "comment"];
+				} else if (stream.eat("*")) {
+					state.tokenize = tokenCComment;
+					return tokenCComment(stream, state);
+				} else {
+					return ["operator", "operator"];
+				}
+			},
+			":": function(stream) {
+				if (stream.match(/\s*\{/, false))
+					return [null, null]
+				return false;
+			},
+			"$": function(stream) {
+				stream.match(/^[\w-]+/);
+				if (stream.match(/^\s*:/, false))
+					return ["variable-2", "variable-definition"];
+				return ["variable-2", "variable"];
+			},
+			"#": function(stream) {
+				if (!stream.eat("{")) return false;
+				return [null, "interpolation"];
+			}
+		},
+		name: "css",
+		helperType: "scss"
+	});
+
+	CodeMirror.defineMIME("text/x-less", {
+		mediaTypes: mediaTypes,
+		mediaFeatures: mediaFeatures,
+		mediaValueKeywords: mediaValueKeywords,
+		propertyKeywords: propertyKeywords,
+		nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+		colorKeywords: colorKeywords,
+		valueKeywords: valueKeywords,
+		fontProperties: fontProperties,
+		allowNested: true,
+		lineComment: "//",
+		tokenHooks: {
+			"/": function(stream, state) {
+				if (stream.eat("/")) {
+					stream.skipToEnd();
+					return ["comment", "comment"];
+				} else if (stream.eat("*")) {
+					state.tokenize = tokenCComment;
+					return tokenCComment(stream, state);
+				} else {
+					return ["operator", "operator"];
+				}
+			},
+			"@": function(stream) {
+				if (stream.eat("{")) return [null, "interpolation"];
+				if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/i, false)) return false;
+				stream.eatWhile(/[\w\\\-]/);
+				if (stream.match(/^\s*:/, false))
+					return ["variable-2", "variable-definition"];
+				return ["variable-2", "variable"];
+			},
+			"&": function() {
+				return ["atom", "atom"];
+			}
+		},
+		name: "css",
+		helperType: "less"
+	});
+
+	CodeMirror.defineMIME("text/x-gss", {
+		documentTypes: documentTypes,
+		mediaTypes: mediaTypes,
+		mediaFeatures: mediaFeatures,
+		propertyKeywords: propertyKeywords,
+		nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+		fontProperties: fontProperties,
+		counterDescriptors: counterDescriptors,
+		colorKeywords: colorKeywords,
+		valueKeywords: valueKeywords,
+		supportsAtComponent: true,
+		tokenHooks: {
+			"/": function(stream, state) {
+				if (!stream.eat("*")) return false;
+				state.tokenize = tokenCComment;
+				return tokenCComment(stream, state);
+			}
+		},
+		name: "css",
+		helperType: "gss"
+	});
+
+});
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+/*
+For extra ASP classic objects, initialize CodeMirror instance with this option:
+	isASP: true
+
+E.G.:
+	var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+		lineNumbers: true,
+		isASP: true
+	  });
+*/
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+	mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+	define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+	mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("vbscript", function(conf, parserConf) {
+	var ERRORCLASS = 'error';
+
+	function wordRegexp(words) {
+		return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
+	}
+
+	var singleOperators = new RegExp("^[\\+\\-\\*/&\\\\\\^<>=]");
+	var doubleOperators = new RegExp("^((<>)|(<=)|(>=))");
+	var singleDelimiters = new RegExp('^[\\.,]');
+	var brakets = new RegExp('^[\\(\\)]');
+	var identifiers = new RegExp("^[A-Za-z][_A-Za-z0-9]*");
+
+	var openingKeywords = ['class','sub','select','while','if','function', 'property', 'with', 'for'];
+	var middleKeywords = ['else','elseif','case'];
+	var endKeywords = ['next','loop','wend'];
+
+	var wordOperators = wordRegexp(['and', 'or', 'not', 'xor', 'is', 'mod', 'eqv', 'imp']);
+	var commonkeywords = ['dim', 'redim', 'then',  'until', 'randomize',
+						  'byval','byref','new','property', 'exit', 'in',
+						  'const','private', 'public',
+						  'get','set','let', 'stop', 'on error resume next', 'on error goto 0', 'option explicit', 'call', 'me'];
+
+	//This list was from: http://msdn.microsoft.com/en-us/library/f8tbc79x(v=vs.84).aspx
+	var atomWords = ['true', 'false', 'nothing', 'empty', 'null'];
+	//This list was from: http://msdn.microsoft.com/en-us/library/3ca8tfek(v=vs.84).aspx
+	var builtinFuncsWords = ['abs', 'array', 'asc', 'atn', 'cbool', 'cbyte', 'ccur', 'cdate', 'cdbl', 'chr', 'cint', 'clng', 'cos', 'csng', 'cstr', 'date', 'dateadd', 'datediff', 'datepart',
+						'dateserial', 'datevalue', 'day', 'escape', 'eval', 'execute', 'exp', 'filter', 'formatcurrency', 'formatdatetime', 'formatnumber', 'formatpercent', 'getlocale', 'getobject',
+						'getref', 'hex', 'hour', 'inputbox', 'instr', 'instrrev', 'int', 'fix', 'isarray', 'isdate', 'isempty', 'isnull', 'isnumeric', 'isobject', 'join', 'lbound', 'lcase', 'left',
+						'len', 'loadpicture', 'log', 'ltrim', 'rtrim', 'trim', 'maths', 'mid', 'minute', 'month', 'monthname', 'msgbox', 'now', 'oct', 'replace', 'rgb', 'right', 'rnd', 'round',
+						'scriptengine', 'scriptenginebuildversion', 'scriptenginemajorversion', 'scriptengineminorversion', 'second', 'setlocale', 'sgn', 'sin', 'space', 'split', 'sqr', 'strcomp',
+						'string', 'strreverse', 'tan', 'time', 'timer', 'timeserial', 'timevalue', 'typename', 'ubound', 'ucase', 'unescape', 'vartype', 'weekday', 'weekdayname', 'year'];
+
+	//This list was from: http://msdn.microsoft.com/en-us/library/ydz4cfk3(v=vs.84).aspx
+	var builtinConsts = ['vbBlack', 'vbRed', 'vbGreen', 'vbYellow', 'vbBlue', 'vbMagenta', 'vbCyan', 'vbWhite', 'vbBinaryCompare', 'vbTextCompare',
+						 'vbSunday', 'vbMonday', 'vbTuesday', 'vbWednesday', 'vbThursday', 'vbFriday', 'vbSaturday', 'vbUseSystemDayOfWeek', 'vbFirstJan1', 'vbFirstFourDays', 'vbFirstFullWeek',
+						 'vbGeneralDate', 'vbLongDate', 'vbShortDate', 'vbLongTime', 'vbShortTime', 'vbObjectError',
+						 'vbOKOnly', 'vbOKCancel', 'vbAbortRetryIgnore', 'vbYesNoCancel', 'vbYesNo', 'vbRetryCancel', 'vbCritical', 'vbQuestion', 'vbExclamation', 'vbInformation', 'vbDefaultButton1', 'vbDefaultButton2',
+						 'vbDefaultButton3', 'vbDefaultButton4', 'vbApplicationModal', 'vbSystemModal', 'vbOK', 'vbCancel', 'vbAbort', 'vbRetry', 'vbIgnore', 'vbYes', 'vbNo',
+						 'vbCr', 'VbCrLf', 'vbFormFeed', 'vbLf', 'vbNewLine', 'vbNullChar', 'vbNullString', 'vbTab', 'vbVerticalTab', 'vbUseDefault', 'vbTrue', 'vbFalse',
+						 'vbEmpty', 'vbNull', 'vbInteger', 'vbLong', 'vbSingle', 'vbDouble', 'vbCurrency', 'vbDate', 'vbString', 'vbObject', 'vbError', 'vbBoolean', 'vbVariant', 'vbDataObject', 'vbDecimal', 'vbByte', 'vbArray'];
+	//This list was from: http://msdn.microsoft.com/en-us/library/hkc375ea(v=vs.84).aspx
+	var builtinObjsWords = ['WScript', 'err', 'debug', 'RegExp'];
+	var knownProperties = ['description', 'firstindex', 'global', 'helpcontext', 'helpfile', 'ignorecase', 'length', 'number', 'pattern', 'source', 'value', 'count'];
+	var knownMethods = ['clear', 'execute', 'raise', 'replace', 'test', 'write', 'writeline', 'close', 'open', 'state', 'eof', 'update', 'addnew', 'end', 'createobject', 'quit'];
+
+	var aspBuiltinObjsWords = ['server', 'response', 'request', 'session', 'application'];
+	var aspKnownProperties = ['buffer', 'cachecontrol', 'charset', 'contenttype', 'expires', 'expiresabsolute', 'isclientconnected', 'pics', 'status', //response
+							  'clientcertificate', 'cookies', 'form', 'querystring', 'servervariables', 'totalbytes', //request
+							  'contents', 'staticobjects', //application
+							  'codepage', 'lcid', 'sessionid', 'timeout', //session
+							  'scripttimeout']; //server
+	var aspKnownMethods = ['addheader', 'appendtolog', 'binarywrite', 'end', 'flush', 'redirect', //response
+						   'binaryread', //request
+						   'remove', 'removeall', 'lock', 'unlock', //application
+						   'abandon', //session
+						   'getlasterror', 'htmlencode', 'mappath', 'transfer', 'urlencode']; //server
+
+	var knownWords = knownMethods.concat(knownProperties);
+
+	builtinObjsWords = builtinObjsWords.concat(builtinConsts);
+
+	if (conf.isASP){
+		builtinObjsWords = builtinObjsWords.concat(aspBuiltinObjsWords);
+		knownWords = knownWords.concat(aspKnownMethods, aspKnownProperties);
+	};
+
+	var keywords = wordRegexp(commonkeywords);
+	var atoms = wordRegexp(atomWords);
+	var builtinFuncs = wordRegexp(builtinFuncsWords);
+	var builtinObjs = wordRegexp(builtinObjsWords);
+	var known = wordRegexp(knownWords);
+	var stringPrefixes = '"';
+
+	var opening = wordRegexp(openingKeywords);
+	var middle = wordRegexp(middleKeywords);
+	var closing = wordRegexp(endKeywords);
+	var doubleClosing = wordRegexp(['end']);
+	var doOpening = wordRegexp(['do']);
+	var noIndentWords = wordRegexp(['on error resume next', 'exit']);
+	var comment = wordRegexp(['rem']);
+
+
+	function indent(_stream, state) {
+	  state.currentIndent++;
+	}
+
+	function dedent(_stream, state) {
+	  state.currentIndent--;
+	}
+	// tokenizers
+	function tokenBase(stream, state) {
+		if (stream.eatSpace()) {
+			return 'space';
+			//return null;
+		}
+
+		var ch = stream.peek();
+
+		// Handle Comments
+		if (ch === "'") {
+			stream.skipToEnd();
+			return 'comment';
+		}
+		if (stream.match(comment)){
+			stream.skipToEnd();
+			return 'comment';
+		}
+
+
+		// Handle Number Literals
+		if (stream.match(/^((&H)|(&O))?[0-9\.]/i, false) && !stream.match(/^((&H)|(&O))?[0-9\.]+[a-z_]/i, false)) {
+			var floatLiteral = false;
+			// Floats
+			if (stream.match(/^\d*\.\d+/i)) { floatLiteral = true; }
+			else if (stream.match(/^\d+\.\d*/)) { floatLiteral = true; }
+			else if (stream.match(/^\.\d+/)) { floatLiteral = true; }
+
+			if (floatLiteral) {
+				// Float literals may be "imaginary"
+				stream.eat(/J/i);
+				return 'number';
+			}
+			// Integers
+			var intLiteral = false;
+			// Hex
+			if (stream.match(/^&H[0-9a-f]+/i)) { intLiteral = true; }
+			// Octal
+			else if (stream.match(/^&O[0-7]+/i)) { intLiteral = true; }
+			// Decimal
+			else if (stream.match(/^[1-9]\d*F?/)) {
+				// Decimal literals may be "imaginary"
+				stream.eat(/J/i);
+				// TODO - Can you have imaginary longs?
+				intLiteral = true;
+			}
+			// Zero by itself with no other piece of number.
+			else if (stream.match(/^0(?![\dx])/i)) { intLiteral = true; }
+			if (intLiteral) {
+				// Integer literals may be "long"
+				stream.eat(/L/i);
+				return 'number';
+			}
+		}
+
+		// Handle Strings
+		if (stream.match(stringPrefixes)) {
+			state.tokenize = tokenStringFactory(stream.current());
+			return state.tokenize(stream, state);
+		}
+
+		// Handle operators and Delimiters
+		if (stream.match(doubleOperators)
+			|| stream.match(singleOperators)
+			|| stream.match(wordOperators)) {
+			return 'operator';
+		}
+		if (stream.match(singleDelimiters)) {
+			return null;
+		}
+
+		if (stream.match(brakets)) {
+			return "bracket";
+		}
+
+		if (stream.match(noIndentWords)) {
+			state.doInCurrentLine = true;
+
+			return 'keyword';
+		}
+
+		if (stream.match(doOpening)) {
+			indent(stream,state);
+			state.doInCurrentLine = true;
+
+			return 'keyword';
+		}
+		if (stream.match(opening)) {
+			if (! state.doInCurrentLine)
+			  indent(stream,state);
+			else
+			  state.doInCurrentLine = false;
+
+			return 'keyword';
+		}
+		if (stream.match(middle)) {
+			return 'keyword';
+		}
+
+
+		if (stream.match(doubleClosing)) {
+			dedent(stream,state);
+			dedent(stream,state);
+
+			return 'keyword';
+		}
+		if (stream.match(closing)) {
+			if (! state.doInCurrentLine)
+			  dedent(stream,state);
+			else
+			  state.doInCurrentLine = false;
+
+			return 'keyword';
+		}
+
+		if (stream.match(keywords)) {
+			return 'keyword';
+		}
+
+		if (stream.match(atoms)) {
+			return 'atom';
+		}
+
+		if (stream.match(known)) {
+			return 'variable-2';
+		}
+
+		if (stream.match(builtinFuncs)) {
+			return 'builtin';
+		}
+
+		if (stream.match(builtinObjs)){
+			return 'variable-2';
+		}
+
+		if (stream.match(identifiers)) {
+			return 'variable';
+		}
+
+		// Handle non-detected items
+		stream.next();
+		return ERRORCLASS;
+	}
+
+	function tokenStringFactory(delimiter) {
+		var singleline = delimiter.length == 1;
+		var OUTCLASS = 'string';
+
+		return function(stream, state) {
+			while (!stream.eol()) {
+				stream.eatWhile(/[^'"]/);
+				if (stream.match(delimiter)) {
+					state.tokenize = tokenBase;
+					return OUTCLASS;
+				} else {
+					stream.eat(/['"]/);
+				}
+			}
+			if (singleline) {
+				if (parserConf.singleLineStringErrors) {
+					return ERRORCLASS;
+				} else {
+					state.tokenize = tokenBase;
+				}
+			}
+			return OUTCLASS;
+		};
+	}
+
+
+	function tokenLexer(stream, state) {
+		var style = state.tokenize(stream, state);
+		var current = stream.current();
+
+		// Handle '.' connected identifiers
+		if (current === '.') {
+			style = state.tokenize(stream, state);
+
+			current = stream.current();
+			if (style && (style.substr(0, 8) === 'variable' || style==='builtin' || style==='keyword')){//|| knownWords.indexOf(current.substring(1)) > -1) {
+				if (style === 'builtin' || style === 'keyword') style='variable';
+				if (knownWords.indexOf(current.substr(1)) > -1) style='variable-2';
+
+				return style;
+			} else {
+				return ERRORCLASS;
+			}
+		}
+
+		return style;
+	}
+
+	var external = {
+		electricChars:"dDpPtTfFeE ",
+		startState: function() {
+			return {
+			  tokenize: tokenBase,
+			  lastToken: null,
+			  currentIndent: 0,
+			  nextLineIndent: 0,
+			  doInCurrentLine: false,
+			  ignoreKeyword: false
+
+
+		  };
+		},
+
+		token: function(stream, state) {
+			if (stream.sol()) {
+			  state.currentIndent += state.nextLineIndent;
+			  state.nextLineIndent = 0;
+			  state.doInCurrentLine = 0;
+			}
+			var style = tokenLexer(stream, state);
+
+			state.lastToken = {style:style, content: stream.current()};
+
+			if (style==='space') style=null;
+
+			return style;
+		},
+
+		indent: function(state, textAfter) {
+			var trueText = textAfter.replace(/^\s+|\s+$/g, '') ;
+			if (trueText.match(closing) || trueText.match(doubleClosing) || trueText.match(middle)) return conf.indentUnit*(state.currentIndent-1);
+			if(state.currentIndent < 0) return 0;
+			return state.currentIndent * conf.indentUnit;
+		}
+
+	};
+	return external;
+});
+
+CodeMirror.defineMIME("text/vbscript", "vbscript");
+
+});
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+	if (typeof exports == "object" && typeof module == "object") // CommonJS
+		mod(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"), require("../css/css"));
+	else if (typeof define == "function" && define.amd) // AMD
+		define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript", "../css/css"], mod);
+	else // Plain browser env
+		mod(CodeMirror);
+})(function(CodeMirror) {
+	"use strict";
+
+	var defaultTags = {
+		script: [
+			["lang", /(javascript|babel)/i, "javascript"],
+			["type", /^(?:text|application)\/(?:x-)?(?:java|ecma)script$|^module$|^$/i, "javascript"],
+			["type", /./, "text/plain"],
+			[null, null, "javascript"]
+		],
+		style:  [
+			["lang", /^css$/i, "css"],
+			["type", /^(text\/)?(x-)?(stylesheet|css)$/i, "css"],
+			["type", /./, "text/plain"],
+			[null, null, "css"]
+		]
+	};
+
+	function maybeBackup(stream, pat, style) {
+		var cur = stream.current(), close = cur.search(pat);
+		if (close > -1) {
+			stream.backUp(cur.length - close);
+		} else if (cur.match(/<\/?$/)) {
+			stream.backUp(cur.length);
+			if (!stream.match(pat, false)) stream.match(cur);
+		}
+		return style;
+	}
+
+	var attrRegexpCache = {};
+	function getAttrRegexp(attr) {
+		var regexp = attrRegexpCache[attr];
+		if (regexp) return regexp;
+		return attrRegexpCache[attr] = new RegExp("\\s+" + attr + "\\s*=\\s*('|\")?([^'\"]+)('|\")?\\s*");
+	}
+
+	function getAttrValue(text, attr) {
+		var match = text.match(getAttrRegexp(attr))
+		return match ? /^\s*(.*?)\s*$/.exec(match[2])[1] : ""
+	}
+
+	function getTagRegexp(tagName, anchored) {
+		return new RegExp((anchored ? "^" : "") + "<\/\s*" + tagName + "\s*>", "i");
+	}
+
+	function addTags(from, to) {
+		for (var tag in from) {
+			var dest = to[tag] || (to[tag] = []);
+			var source = from[tag];
+			for (var i = source.length - 1; i >= 0; i--)
+				dest.unshift(source[i])
+		}
+	}
+
+	function findMatchingMode(tagInfo, tagText) {
+		for (var i = 0; i < tagInfo.length; i++) {
+			var spec = tagInfo[i];
+			if (!spec[0] || spec[1].test(getAttrValue(tagText, spec[0]))) return spec[2];
+		}
+	}
+
+	CodeMirror.defineMode("htmlmixed", function (config, parserConfig) {
+		var htmlMode = CodeMirror.getMode(config, {
+			name: "xml",
+			htmlMode: true,
+			multilineTagIndentFactor: parserConfig.multilineTagIndentFactor,
+			multilineTagIndentPastTag: parserConfig.multilineTagIndentPastTag
+		});
+
+		var tags = {};
+		var configTags = parserConfig && parserConfig.tags, configScript = parserConfig && parserConfig.scriptTypes;
+		addTags(defaultTags, tags);
+		if (configTags) addTags(configTags, tags);
+		if (configScript) for (var i = configScript.length - 1; i >= 0; i--)
+			tags.script.unshift(["type", configScript[i].matches, configScript[i].mode])
+
+		function html(stream, state) {
+			var style = htmlMode.token(stream, state.htmlState), tag = /\btag\b/.test(style), tagName
+			if (tag && !/[<>\s\/]/.test(stream.current()) &&
+					(tagName = state.htmlState.tagName && state.htmlState.tagName.toLowerCase()) &&
+					tags.hasOwnProperty(tagName)) {
+				state.inTag = tagName + " "
+			} else if (state.inTag && tag && />$/.test(stream.current())) {
+				var inTag = /^([\S]+) (.*)/.exec(state.inTag)
+				state.inTag = null
+				var modeSpec = stream.current() == ">" && findMatchingMode(tags[inTag[1]], inTag[2])
+				var mode = CodeMirror.getMode(config, modeSpec)
+				var endTagA = getTagRegexp(inTag[1], true), endTag = getTagRegexp(inTag[1], false);
+				state.token = function (stream, state) {
+					if (stream.match(endTagA, false)) {
+						state.token = html;
+						state.localState = state.localMode = null;
+						return null;
+					}
+					return maybeBackup(stream, endTag, state.localMode.token(stream, state.localState));
+				};
+				state.localMode = mode;
+				state.localState = CodeMirror.startState(mode, htmlMode.indent(state.htmlState, "", ""));
+			} else if (state.inTag) {
+				state.inTag += stream.current()
+				if (stream.eol()) state.inTag += " "
+			}
+			return style;
+		};
+
+		return {
+			startState: function () {
+				var state = CodeMirror.startState(htmlMode);
+				return {token: html, inTag: null, localMode: null, localState: null, htmlState: state};
+			},
+
+			copyState: function (state) {
+				var local;
+				if (state.localState) {
+					local = CodeMirror.copyState(state.localMode, state.localState);
+				}
+				return {token: state.token, inTag: state.inTag,
+								localMode: state.localMode, localState: local,
+								htmlState: CodeMirror.copyState(htmlMode, state.htmlState)};
+			},
+
+			token: function (stream, state) {
+				return state.token(stream, state);
+			},
+
+			indent: function (state, textAfter, line) {
+				if (!state.localMode || /^\s*<\//.test(textAfter))
+					return htmlMode.indent(state.htmlState, textAfter, line);
+				else if (state.localMode.indent)
+					return state.localMode.indent(state.localState, textAfter, line);
+				else
+					return CodeMirror.Pass;
+			},
+
+			innerMode: function (state) {
+				return {state: state.localState || state.htmlState, mode: state.localMode || htmlMode};
+			}
+		};
+	}, "xml", "javascript", "css");
+
+	CodeMirror.defineMIME("text/html", "htmlmixed");
+});

File diff suppressed because it is too large
+ 2 - 0
assets/cp.codemirror.js.go


+ 14 - 0
assets/cp.scripts.js

@@ -3599,6 +3599,19 @@
 			});
 		};
 
+		function MakeTextAreasTmplEditor() {
+			$('textarea.tmpl-editor').each(function() {
+				var targetTextArea = $(this)[0];
+				CodeMirror.fromTextArea(targetTextArea, {
+					lineNumbers: true,
+					lineWrapping: true,
+					viewportMargin: Infinity,
+				}).on('change', function(editor){
+					targetTextArea.value = editor.getValue();
+				});
+			});
+		};
+
 		function MakeTextAreasNotReactOnTab() {
 			$('textarea.use-tab-key').each(function() {
 				$(this).keydown(function(e) {
@@ -3625,6 +3638,7 @@
 				BindWindowBeforeUnload();
 				MakeTextAreasAutoSized();
 				MakeTextAreasWysiwyg();
+				MakeTextAreasTmplEditor();
 				MakeTextAreasNotReactOnTab();
 			} else {
 				console.log('Error: jQuery is not loaded!');

File diff suppressed because it is too large
+ 0 - 0
assets/cp.scripts.js.go


+ 10 - 0
assets/cp.styles.css

@@ -923,6 +923,16 @@ div.wysiwyg.focused {
 	box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, .25);
 }
 
+/* CodeMirror */
+.CodeMirror {
+	border: 1px solid #eee;
+	height: auto;
+}
+
+.CodeMirror pre > * {
+	text-indent: 0px;
+}
+
 /* Bootstrap buttons */
 .btn-primary {
 	background-color: #1a73e8;

File diff suppressed because it is too large
+ 0 - 0
assets/cp.styles.css.go


File diff suppressed because it is too large
+ 0 - 0
assets/tmpl.cp.base.go


+ 17 - 3
assets/tmpl.cp.base.html

@@ -6,7 +6,14 @@
 		<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 		<title>{{$.Data.Title}}</title>
 		<link rel="stylesheet" href="{{$.System.PathCssBootstrap}}">
-		<link rel="stylesheet" href="{{$.System.PathCssCpWysiwygPell}}">
+		{{if or (eq $.System.CpModule "index") (eq $.System.CpModule "blog")}}
+			{{if or (eq $.System.CpSubModule "add") (eq $.System.CpSubModule "modify")}}
+				<link rel="stylesheet" href="{{$.System.PathCssCpWysiwygPell}}">
+			{{end}}
+		{{end}}
+		{{if eq $.System.CpModule "template"}}
+			<link rel="stylesheet" href="{{$.System.PathCssCpCodeMirror}}">
+		{{end}}
 		<link rel="stylesheet" href="{{$.System.PathCssStyles}}" />
 		<link rel="stylesheet" href="{{$.System.PathCssCpStyles}}">
 		<link rel="shortcut icon" href="{{$.System.PathIcoFav}}" type="image/x-icon" />
@@ -18,7 +25,7 @@
 			};
 		</script>
 	</head>
-	<body class="{{$.Data.BodyClasses}}">
+	<body class="{{$.Data.BodyClasses}} cp-mod-{{$.System.CpModule}} cp-sub-mod-{{$.System.CpSubModule}}">
 		<div id="sys-modal-user-settings-placeholder"></div>
 		<nav class="navbar main navbar-expand-md navbar-dark fixed-top bg-dark">
 			<a class="navbar-brand" href="/cp/">{{$.Data.Caption}}</a>
@@ -84,7 +91,14 @@
 		<script src="{{$.System.PathJsJquery}}"></script>
 		<script src="{{$.System.PathJsPopper}}"></script>
 		<script src="{{$.System.PathJsBootstrap}}"></script>
-		<script src="{{$.System.PathJsCpWysiwygPell}}"></script>
+		{{if or (eq $.System.CpModule "index") (eq $.System.CpModule "blog")}}
+			{{if or (eq $.System.CpSubModule "add") (eq $.System.CpSubModule "modify")}}
+				<script src="{{$.System.PathJsCpWysiwygPell}}"></script>
+			{{end}}
+		{{end}}
+		{{if eq $.System.CpModule "template"}}
+			<script src="{{$.System.PathJsCpCodeMirror}}"></script>
+		{{end}}
 		<script src="{{$.System.PathJsCpScripts}}"></script>
 	</body>
 </html>

+ 9 - 1
consts/consts.go

@@ -5,7 +5,7 @@ import (
 )
 
 const AssetsPath = "assets"
-const AssetsVersion = "31"
+const AssetsVersion = "32"
 const DirIndexFile = "index.html"
 
 // Bootstrap resources
@@ -27,6 +27,10 @@ const AssetsSysStylesCss = AssetsPath + "/sys/styles.css"
 const AssetsCpWysiwygPellCss = AssetsPath + "/cp/wysiwyg/pell.css"
 const AssetsCpWysiwygPellJs = AssetsPath + "/cp/wysiwyg/pell.js"
 
+// CodeMirror template editor
+const AssetsCpCodeMirrorCss = AssetsPath + "/cp/tmpl-editor/codemirror.css"
+const AssetsCpCodeMirrorJs = AssetsPath + "/cp/tmpl-editor/codemirror.js"
+
 // Make global for other packages
 var ParamDebug bool
 var ParamHost string
@@ -47,15 +51,19 @@ type TmplSystem struct {
 	PathCssStyles        string
 	PathCssCpStyles      string
 	PathCssBootstrap     string
+	PathCssCpCodeMirror  string
 	PathCssCpWysiwygPell string
 	PathJsJquery         string
 	PathJsPopper         string
 	PathJsBootstrap      string
+	PathJsCpCodeMirror   string
 	PathJsCpScripts      string
 	PathJsCpWysiwygPell  string
 	PathThemeStyles      string
 	PathThemeScripts     string
 	InfoVersion          string
+	CpModule             string
+	CpSubModule          string
 }
 
 type TmplError struct {

+ 3 - 3
engine/engine.go

@@ -56,7 +56,7 @@ func (this *Engine) Process() bool {
 			return true
 		}
 		// Show mysql settings form
-		utils.SystemRenderTemplate(this.Wrap.W, assets.TmplCpMySql, nil)
+		utils.SystemRenderTemplate(this.Wrap.W, assets.TmplCpMySql, nil, "", "")
 		return true
 	}
 
@@ -80,7 +80,7 @@ func (this *Engine) Process() bool {
 			return true
 		}
 		// Show login form
-		utils.SystemRenderTemplate(this.Wrap.W, assets.TmplCpLogin, nil)
+		utils.SystemRenderTemplate(this.Wrap.W, assets.TmplCpLogin, nil, "", "")
 		return true
 	}
 
@@ -97,7 +97,7 @@ func (this *Engine) Process() bool {
 			return true
 		}
 		// Show login form
-		utils.SystemRenderTemplate(this.Wrap.W, assets.TmplCpLogin, nil)
+		utils.SystemRenderTemplate(this.Wrap.W, assets.TmplCpLogin, nil, "", "")
 		return true
 	}
 

+ 2 - 2
engine/wrapper/wrapper.go

@@ -235,7 +235,7 @@ func (this *Wrapper) RenderFrontEnd(tname string, data interface{}, status int)
 	}
 	var tpl bytes.Buffer
 	err = tmpl.Execute(&tpl, consts.TmplData{
-		System: utils.GetTmplSystemData(),
+		System: utils.GetTmplSystemData("", ""),
 		Data:   data,
 	})
 	if err != nil {
@@ -258,7 +258,7 @@ func (this *Wrapper) RenderBackEnd(tcont []byte, data interface{}) {
 	this.W.Header().Set("Content-Type", "text/html; charset=utf-8")
 	var tpl bytes.Buffer
 	err = tmpl.Execute(this.W, consts.TmplData{
-		System: utils.GetTmplSystemData(),
+		System: utils.GetTmplSystemData(this.CurrModule, this.CurrSubModule),
 		Data:   data,
 	})
 	if err != nil {

+ 1 - 1
modules/module_template.go

@@ -97,7 +97,7 @@ func (this *Modules) RegisterModule_Template() *Module {
 					{
 						Kind: builder.DFKText,
 						CallBack: func(field *builder.DataFormField) string {
-							return `<div class="form-group last"><div class="row"><div class="col-12"><textarea class="form-control autosize use-tab-key" id="lbl_content" name="content" placeholder="" autocomplete="off">` + html.EscapeString(string(fcont)) + `</textarea></div></div></div>`
+							return `<div class="form-group last"><div class="row"><div class="col-12"><textarea class="form-control tmpl-editor" id="lbl_content" name="content" placeholder="" autocomplete="off">` + html.EscapeString(string(fcont)) + `</textarea></div></div></div>`
 						},
 					},
 					{

+ 10 - 6
utils/utils.go

@@ -108,22 +108,26 @@ func GetAssetsUrl(filename string) string {
 	return "/" + filename + "?v=" + consts.AssetsVersion
 }
 
-func GetTmplSystemData() consts.TmplSystem {
+func GetTmplSystemData(cpmod, cpsubmod string) consts.TmplSystem {
 	return consts.TmplSystem{
 		PathIcoFav:           GetAssetsUrl(consts.AssetsSysFaveIco),
 		PathSvgLogo:          GetAssetsUrl(consts.AssetsSysLogoSvg),
 		PathCssStyles:        GetAssetsUrl(consts.AssetsSysStylesCss),
 		PathCssCpStyles:      GetAssetsUrl(consts.AssetsCpStylesCss),
 		PathCssBootstrap:     GetAssetsUrl(consts.AssetsBootstrapCss),
+		PathCssCpCodeMirror:  GetAssetsUrl(consts.AssetsCpCodeMirrorCss),
 		PathCssCpWysiwygPell: GetAssetsUrl(consts.AssetsCpWysiwygPellCss),
 		PathJsJquery:         GetAssetsUrl(consts.AssetsJqueryJs),
 		PathJsPopper:         GetAssetsUrl(consts.AssetsPopperJs),
 		PathJsBootstrap:      GetAssetsUrl(consts.AssetsBootstrapJs),
+		PathJsCpCodeMirror:   GetAssetsUrl(consts.AssetsCpCodeMirrorJs),
 		PathJsCpScripts:      GetAssetsUrl(consts.AssetsCpScriptsJs),
 		PathJsCpWysiwygPell:  GetAssetsUrl(consts.AssetsCpWysiwygPellJs),
 		PathThemeStyles:      "/assets/theme/styles.css",
 		PathThemeScripts:     "/assets/theme/scripts.js",
 		InfoVersion:          consts.ServerVersion,
+		CpModule:             cpmod,
+		CpSubModule:          cpsubmod,
 	}
 }
 
@@ -143,7 +147,7 @@ func GetCurrentUnixTimestamp() int64 {
 	return int64(time.Now().Unix())
 }
 
-func SystemRenderTemplate(w http.ResponseWriter, c []byte, d interface{}) {
+func SystemRenderTemplate(w http.ResponseWriter, c []byte, d interface{}, cpmod, cpsubmod string) {
 	tmpl, err := template.New("template").Parse(string(c))
 	if err != nil {
 		SystemErrorPageEngine(w, err)
@@ -152,7 +156,7 @@ func SystemRenderTemplate(w http.ResponseWriter, c []byte, d interface{}) {
 	w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
 	w.Header().Set("Content-Type", "text/html")
 	tmpl.Execute(w, consts.TmplData{
-		System: GetTmplSystemData(),
+		System: GetTmplSystemData(cpmod, cpsubmod),
 		Data:   d,
 	})
 }
@@ -163,7 +167,7 @@ func SystemErrorPageEngine(w http.ResponseWriter, err error) {
 		w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
 		w.Header().Set("Content-Type", "text/html")
 		tmpl.Execute(w, consts.TmplData{
-			System: GetTmplSystemData(),
+			System: GetTmplSystemData("error", "engine"),
 			Data:   GetTmplError(err),
 		})
 		return
@@ -181,7 +185,7 @@ func SystemErrorPageTemplate(w http.ResponseWriter, err error) {
 		w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
 		w.Header().Set("Content-Type", "text/html")
 		tmpl.Execute(w, consts.TmplData{
-			System: GetTmplSystemData(),
+			System: GetTmplSystemData("error", "template"),
 			Data:   GetTmplError(err),
 		})
 		return
@@ -203,7 +207,7 @@ func SystemErrorPage404(w http.ResponseWriter) {
 	w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
 	w.Header().Set("Content-Type", "text/html")
 	tmpl.Execute(w, consts.TmplData{
-		System: GetTmplSystemData(),
+		System: GetTmplSystemData("error", "404"),
 		Data:   nil,
 	})
 }

+ 6 - 2
utils/utils_test.go

@@ -113,21 +113,25 @@ func TestGetAssetsUrl(t *testing.T) {
 }
 
 func TestGetTmplSystemData(t *testing.T) {
-	Expect(t, GetTmplSystemData(), consts.TmplSystem{
+	Expect(t, GetTmplSystemData("module", "module"), consts.TmplSystem{
 		PathIcoFav:           "/assets/sys/fave.ico?v=" + consts.AssetsVersion,
 		PathSvgLogo:          "/assets/sys/logo.svg?v=" + consts.AssetsVersion,
 		PathCssStyles:        "/assets/sys/styles.css?v=" + consts.AssetsVersion,
 		PathCssCpStyles:      "/assets/cp/styles.css?v=" + consts.AssetsVersion,
 		PathCssBootstrap:     "/assets/bootstrap.css?v=" + consts.AssetsVersion,
+		PathCssCpCodeMirror:  "/assets/cp/tmpl-editor/codemirror.css?v=" + consts.AssetsVersion,
 		PathCssCpWysiwygPell: "/assets/cp/wysiwyg/pell.css?v=" + consts.AssetsVersion,
 		PathJsJquery:         "/assets/jquery.js?v=" + consts.AssetsVersion,
 		PathJsPopper:         "/assets/popper.js?v=" + consts.AssetsVersion,
 		PathJsBootstrap:      "/assets/bootstrap.js?v=" + consts.AssetsVersion,
+		PathJsCpCodeMirror:   "/assets/cp/tmpl-editor/codemirror.js?v=" + consts.AssetsVersion,
 		PathJsCpScripts:      "/assets/cp/scripts.js?v=" + consts.AssetsVersion,
 		PathJsCpWysiwygPell:  "/assets/cp/wysiwyg/pell.js?v=" + consts.AssetsVersion,
 		PathThemeStyles:      "/assets/theme/styles.css",
 		PathThemeScripts:     "/assets/theme/scripts.js",
 		InfoVersion:          consts.ServerVersion,
+		CpModule:             "module",
+		CpSubModule:          "module",
 	})
 }
 
@@ -152,7 +156,7 @@ func TestSystemRenderTemplate(t *testing.T) {
 	}
 	recorder := httptest.NewRecorder()
 	http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		SystemRenderTemplate(w, []byte(`ok`), nil)
+		SystemRenderTemplate(w, []byte(`ok`), nil, "module", "module")
 	}).ServeHTTP(recorder, request)
 	Expect(t, recorder.Code, 200)
 	Expect(t, recorder.Body.String(), `ok`)

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