← All changes | js/codemirror/codemirror.js +7830 -1 6.3 → 5.0 View file →

		@@ -1 +1,7830 @@
1		-/* This file has been deprecated as of v5.0.17. Please upgrade to WordPress 4.9 to use Codemirror. */
	1	+// CodeMirror, copyright (c) by Marijn Haverbeke and others
	2	+// Distributed under an MIT license: http://codemirror.net/LICENSE
	3	+
	4	+// This is CodeMirror (http://codemirror.net), a code editor
	5	+// implemented in JavaScript on top of the browser's DOM.
	6	+//
	7	+// You can find some technical background for some of the code below
	8	+// at http://marijnhaverbeke.nl/blog/#cm-internals .
	9	+
	10	+(function(mod) {
	11	+ if (typeof exports == "object" && typeof module == "object") // CommonJS
	12	+ module.exports = mod();
	13	+ else if (typeof define == "function" && define.amd) // AMD
	14	+ return define([], mod);
	15	+ else // Plain browser env
	16	+ this.CodeMirror = mod();
	17	+})(function() {
	18	+ "use strict";
	19	+
	20	+ // BROWSER SNIFFING
	21	+
	22	+ // Kludges for bugs and behavior differences that can't be feature
	23	+ // detected are enabled based on userAgent etc sniffing.
	24	+
	25	+ var gecko = /gecko\/\d/i.test(navigator.userAgent);
	26	+ // ie_uptoN means Internet Explorer version N or lower
	27	+ var ie_upto10 = /MSIE \d/.test(navigator.userAgent);
	28	+ var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(navigator.userAgent);
	29	+ var ie = ie_upto10 || ie_11up;
	30	+ var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
	31	+ var webkit = /WebKit\//.test(navigator.userAgent);
	32	+ var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent);
	33	+ var chrome = /Chrome\//.test(navigator.userAgent);
	34	+ var presto = /Opera\//.test(navigator.userAgent);
	35	+ var safari = /Apple Computer/.test(navigator.vendor);
	36	+ var khtml = /KHTML\//.test(navigator.userAgent);
	37	+ var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent);
	38	+ var phantom = /PhantomJS/.test(navigator.userAgent);
	39	+
	40	+ var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
	41	+ // This is woefully incomplete. Suggestions for alternative methods welcome.
	42	+ var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent);
	43	+ var mac = ios || /Mac/.test(navigator.platform);
	44	+ var windows = /win/i.test(navigator.platform);
	45	+
	46	+ var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/);
	47	+ if (presto_version) presto_version = Number(presto_version[1]);
	48	+ if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
	49	+ // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
	50	+ var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
	51	+ var captureRightClick = gecko || (ie && ie_version >= 9);
	52	+
	53	+ // Optimize some code when these features are not used.
	54	+ var sawReadOnlySpans = false, sawCollapsedSpans = false;
	55	+
	56	+ // EDITOR CONSTRUCTOR
	57	+
	58	+ // A CodeMirror instance represents an editor. This is the object
	59	+ // that user code is usually dealing with.
	60	+
	61	+ function CodeMirror(place, options) {
	62	+ if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
	63	+
	64	+ this.options = options = options ? copyObj(options) : {};
	65	+ // Determine effective options based on given values and defaults.
	66	+ copyObj(defaults, options, false);
	67	+ setGuttersForLineNumbers(options);
	68	+
	69	+ var doc = options.value;
	70	+ if (typeof doc == "string") doc = new Doc(doc, options.mode);
	71	+ this.doc = doc;
	72	+
	73	+ var display = this.display = new Display(place, doc);
	74	+ display.wrapper.CodeMirror = this;
	75	+ updateGutters(this);
	76	+ themeChanged(this);
	77	+ if (options.lineWrapping)
	78	+ this.display.wrapper.className += " CodeMirror-wrap";
	79	+ if (options.autofocus && !mobile) focusInput(this);
	80	+
	81	+ this.state = {
	82	+ keyMaps: [], // stores maps added by addKeyMap
	83	+ overlays: [], // highlighting overlays, as added by addOverlay
	84	+ modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
	85	+ overwrite: false, focused: false,
	86	+ suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
	87	+ pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in readInput
	88	+ draggingText: false,
	89	+ highlight: new Delayed() // stores highlight worker timeout
	90	+ };
	91	+
	92	+ // Override magic textarea content restore that IE sometimes does
	93	+ // on our hidden textarea on reload
	94	+ if (ie && ie_version < 11) setTimeout(bind(resetInput, this, true), 20);
	95	+
	96	+ registerEventHandlers(this);
	97	+ ensureGlobalHandlers();
	98	+
	99	+ startOperation(this);
	100	+ this.curOp.forceUpdate = true;
	101	+ attachDoc(this, doc);
	102	+
	103	+ if ((options.autofocus && !mobile) || activeElt() == display.input)
	104	+ setTimeout(bind(onFocus, this), 20);
	105	+ else
	106	+ onBlur(this);
	107	+
	108	+ for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
	109	+ optionHandlers[opt](this, options[opt], Init);
	110	+ maybeUpdateLineNumberWidth(this);
	111	+ for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
	112	+ endOperation(this);
	113	+ }
	114	+
	115	+ // DISPLAY CONSTRUCTOR
	116	+
	117	+ // The display handles the DOM integration, both for input reading
	118	+ // and content drawing. It holds references to DOM nodes and
	119	+ // display-related state.
	120	+
	121	+ function Display(place, doc) {
	122	+ var d = this;
	123	+
	124	+ // The semihidden textarea that is focused when the editor is
	125	+ // focused, and receives input.
	126	+ var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
	127	+ // The textarea is kept positioned near the cursor to prevent the
	128	+ // fact that it'll be scrolled into view on input from scrolling
	129	+ // our fake cursor out of view. On webkit, when wrap=off, paste is
	130	+ // very slow. So make the area wide instead.
	131	+ if (webkit) input.style.width = "1000px";
	132	+ else input.setAttribute("wrap", "off");
	133	+ // If border: 0; -- iOS fails to open keyboard (issue #1287)
	134	+ if (ios) input.style.border = "1px solid black";
	135	+ input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false");
	136	+
	137	+ // Wraps and hides input textarea
	138	+ d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
	139	+ // The fake scrollbar elements.
	140	+ d.scrollbarH = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
	141	+ d.scrollbarV = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
	142	+ // Covers bottom-right square when both scrollbars are present.
	143	+ d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
	144	+ // Covers bottom of gutter when coverGutterNextToScrollbar is on
	145	+ // and h scrollbar is present.
	146	+ d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
	147	+ // Will contain the actual code, positioned to cover the viewport.
	148	+ d.lineDiv = elt("div", null, "CodeMirror-code");
	149	+ // Elements are added to these to represent selection and cursors.
	150	+ d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
	151	+ d.cursorDiv = elt("div", null, "CodeMirror-cursors");
	152	+ // A visibility: hidden element used to find the size of things.
	153	+ d.measure = elt("div", null, "CodeMirror-measure");
	154	+ // When lines outside of the viewport are measured, they are drawn in this.
	155	+ d.lineMeasure = elt("div", null, "CodeMirror-measure");
	156	+ // Wraps everything that needs to exist inside the vertically-padded coordinate system
	157	+ d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
	158	+ null, "position: relative; outline: none");
	159	+ // Moved around its parent to cover visible view.
	160	+ d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
	161	+ // Set to the height of the document, allowing scrolling.
	162	+ d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
	163	+ // Behavior of elts with overflow: auto and padding is
	164	+ // inconsistent across browsers. This is used to ensure the
	165	+ // scrollable area is big enough.
	166	+ d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;");
	167	+ // Will contain the gutters, if any.
	168	+ d.gutters = elt("div", null, "CodeMirror-gutters");
	169	+ d.lineGutter = null;
	170	+ // Actual scrollable element.
	171	+ d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
	172	+ d.scroller.setAttribute("tabIndex", "-1");
	173	+ // The element in which the editor lives.
	174	+ d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV,
	175	+ d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
	176	+
	177	+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
	178	+ if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
	179	+ // Needed to hide big blue blinking cursor on Mobile Safari
	180	+ if (ios) input.style.width = "0px";
	181	+ if (!webkit) d.scroller.draggable = true;
	182	+ // Needed to handle Tab key in KHTML
	183	+ if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; }
	184	+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
	185	+ if (ie && ie_version < 8) d.scrollbarH.style.minHeight = d.scrollbarV.style.minWidth = "18px";
	186	+
	187	+ if (place.appendChild) place.appendChild(d.wrapper);
	188	+ else place(d.wrapper);
	189	+
	190	+ // Current rendered range (may be bigger than the view window).
	191	+ d.viewFrom = d.viewTo = doc.first;
	192	+ // Information about the rendered lines.
	193	+ d.view = [];
	194	+ // Holds info about a single rendered line when it was rendered
	195	+ // for measurement, while not in view.
	196	+ d.externalMeasured = null;
	197	+ // Empty space (in pixels) above the view
	198	+ d.viewOffset = 0;
	199	+ d.lastSizeC = 0;
	200	+ d.updateLineNumbers = null;
	201	+
	202	+ // Used to only resize the line number gutter when necessary (when
	203	+ // the amount of lines crosses a boundary that makes its width change)
	204	+ d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
	205	+ // See readInput and resetInput
	206	+ d.prevInput = "";
	207	+ // Set to true when a non-horizontal-scrolling line widget is
	208	+ // added. As an optimization, line widget aligning is skipped when
	209	+ // this is false.
	210	+ d.alignWidgets = false;
	211	+ // Flag that indicates whether we expect input to appear real soon
	212	+ // now (after some event like 'keypress' or 'input') and are
	213	+ // polling intensively.
	214	+ d.pollingFast = false;
	215	+ // Self-resetting timeout for the poller
	216	+ d.poll = new Delayed();
	217	+
	218	+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
	219	+
	220	+ // Tracks when resetInput has punted to just putting a short
	221	+ // string into the textarea instead of the full selection.
	222	+ d.inaccurateSelection = false;
	223	+
	224	+ // Tracks the maximum line length so that the horizontal scrollbar
	225	+ // can be kept static when scrolling.
	226	+ d.maxLine = null;
	227	+ d.maxLineLength = 0;
	228	+ d.maxLineChanged = false;
	229	+
	230	+ // Used for measuring wheel scrolling granularity
	231	+ d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
	232	+
	233	+ // True when shift is held down.
	234	+ d.shift = false;
	235	+
	236	+ // Used to track whether anything happened since the context menu
	237	+ // was opened.
	238	+ d.selForContextMenu = null;
	239	+ }
	240	+
	241	+ // STATE UPDATES
	242	+
	243	+ // Used to get the editor into a consistent state again when options change.
	244	+
	245	+ function loadMode(cm) {
	246	+ cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
	247	+ resetModeState(cm);
	248	+ }
	249	+
	250	+ function resetModeState(cm) {
	251	+ cm.doc.iter(function(line) {
	252	+ if (line.stateAfter) line.stateAfter = null;
	253	+ if (line.styles) line.styles = null;
	254	+ });
	255	+ cm.doc.frontier = cm.doc.first;
	256	+ startWorker(cm, 100);
	257	+ cm.state.modeGen++;
	258	+ if (cm.curOp) regChange(cm);
	259	+ }
	260	+
	261	+ function wrappingChanged(cm) {
	262	+ if (cm.options.lineWrapping) {
	263	+ addClass(cm.display.wrapper, "CodeMirror-wrap");
	264	+ cm.display.sizer.style.minWidth = "";
	265	+ } else {
	266	+ rmClass(cm.display.wrapper, "CodeMirror-wrap");
	267	+ findMaxLine(cm);
	268	+ }
	269	+ estimateLineHeights(cm);
	270	+ regChange(cm);
	271	+ clearCaches(cm);
	272	+ setTimeout(function(){updateScrollbars(cm);}, 100);
	273	+ }
	274	+
	275	+ // Returns a function that estimates the height of a line, to use as
	276	+ // first approximation until the line becomes visible (and is thus
	277	+ // properly measurable).
	278	+ function estimateHeight(cm) {
	279	+ var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
	280	+ var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
	281	+ return function(line) {
	282	+ if (lineIsHidden(cm.doc, line)) return 0;
	283	+
	284	+ var widgetsHeight = 0;
	285	+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
	286	+ if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
	287	+ }
	288	+
	289	+ if (wrapping)
	290	+ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
	291	+ else
	292	+ return widgetsHeight + th;
	293	+ };
	294	+ }
	295	+
	296	+ function estimateLineHeights(cm) {
	297	+ var doc = cm.doc, est = estimateHeight(cm);
	298	+ doc.iter(function(line) {
	299	+ var estHeight = est(line);
	300	+ if (estHeight != line.height) updateLineHeight(line, estHeight);
	301	+ });
	302	+ }
	303	+
	304	+ function keyMapChanged(cm) {
	305	+ var map = keyMap[cm.options.keyMap], style = map.style;
	306	+ cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
	307	+ (style ? " cm-keymap-" + style : "");
	308	+ }
	309	+
	310	+ function themeChanged(cm) {
	311	+ cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
	312	+ cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
	313	+ clearCaches(cm);
	314	+ }
	315	+
	316	+ function guttersChanged(cm) {
	317	+ updateGutters(cm);
	318	+ regChange(cm);
	319	+ setTimeout(function(){alignHorizontally(cm);}, 20);
	320	+ }
	321	+
	322	+ // Rebuild the gutter elements, ensure the margin to the left of the
	323	+ // code matches their width.
	324	+ function updateGutters(cm) {
	325	+ var gutters = cm.display.gutters, specs = cm.options.gutters;
	326	+ removeChildren(gutters);
	327	+ for (var i = 0; i < specs.length; ++i) {
	328	+ var gutterClass = specs[i];
	329	+ var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
	330	+ if (gutterClass == "CodeMirror-linenumbers") {
	331	+ cm.display.lineGutter = gElt;
	332	+ gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
	333	+ }
	334	+ }
	335	+ gutters.style.display = i ? "" : "none";
	336	+ updateGutterSpace(cm);
	337	+ }
	338	+
	339	+ function updateGutterSpace(cm) {
	340	+ var width = cm.display.gutters.offsetWidth;
	341	+ cm.display.sizer.style.marginLeft = width + "px";
	342	+ cm.display.scrollbarH.style.left = cm.options.fixedGutter ? width + "px" : 0;
	343	+ }
	344	+
	345	+ // Compute the character length of a line, taking into account
	346	+ // collapsed ranges (see markText) that might hide parts, and join
	347	+ // other lines onto it.
	348	+ function lineLength(line) {
	349	+ if (line.height == 0) return 0;
	350	+ var len = line.text.length, merged, cur = line;
	351	+ while (merged = collapsedSpanAtStart(cur)) {
	352	+ var found = merged.find(0, true);
	353	+ cur = found.from.line;
	354	+ len += found.from.ch - found.to.ch;
	355	+ }
	356	+ cur = line;
	357	+ while (merged = collapsedSpanAtEnd(cur)) {
	358	+ var found = merged.find(0, true);
	359	+ len -= cur.text.length - found.from.ch;
	360	+ cur = found.to.line;
	361	+ len += cur.text.length - found.to.ch;
	362	+ }
	363	+ return len;
	364	+ }
	365	+
	366	+ // Find the longest line in the document.
	367	+ function findMaxLine(cm) {
	368	+ var d = cm.display, doc = cm.doc;
	369	+ d.maxLine = getLine(doc, doc.first);
	370	+ d.maxLineLength = lineLength(d.maxLine);
	371	+ d.maxLineChanged = true;
	372	+ doc.iter(function(line) {
	373	+ var len = lineLength(line);
	374	+ if (len > d.maxLineLength) {
	375	+ d.maxLineLength = len;
	376	+ d.maxLine = line;
	377	+ }
	378	+ });
	379	+ }
	380	+
	381	+ // Make sure the gutters options contains the element
	382	+ // "CodeMirror-linenumbers" when the lineNumbers option is true.
	383	+ function setGuttersForLineNumbers(options) {
	384	+ var found = indexOf(options.gutters, "CodeMirror-linenumbers");
	385	+ if (found == -1 && options.lineNumbers) {
	386	+ options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
	387	+ } else if (found > -1 && !options.lineNumbers) {
	388	+ options.gutters = options.gutters.slice(0);
	389	+ options.gutters.splice(found, 1);
	390	+ }
	391	+ }
	392	+
	393	+ // SCROLLBARS
	394	+
	395	+ function hScrollbarTakesSpace(cm) {
	396	+ return cm.display.scroller.clientHeight - cm.display.wrapper.clientHeight < scrollerCutOff - 3;
	397	+ }
	398	+
	399	+ // Prepare DOM reads needed to update the scrollbars. Done in one
	400	+ // shot to minimize update/measure roundtrips.
	401	+ function measureForScrollbars(cm) {
	402	+ var scroll = cm.display.scroller;
	403	+ return {
	404	+ clientHeight: scroll.clientHeight,
	405	+ barHeight: cm.display.scrollbarV.clientHeight,
	406	+ scrollWidth: scroll.scrollWidth, clientWidth: scroll.clientWidth,
	407	+ hScrollbarTakesSpace: hScrollbarTakesSpace(cm),
	408	+ barWidth: cm.display.scrollbarH.clientWidth,
	409	+ docHeight: Math.round(cm.doc.height + paddingVert(cm.display))
	410	+ };
	411	+ }
	412	+
	413	+ // Re-synchronize the fake scrollbars with the actual size of the
	414	+ // content.
	415	+ function updateScrollbars(cm, measure) {
	416	+ if (!measure) measure = measureForScrollbars(cm);
	417	+ var d = cm.display, sWidth = scrollbarWidth(d.measure);
	418	+ var scrollHeight = measure.docHeight + scrollerCutOff;
	419	+ var needsH = measure.scrollWidth > measure.clientWidth;
	420	+ if (needsH && measure.scrollWidth <= measure.clientWidth + 1 &&
	421	+ sWidth > 0 && !measure.hScrollbarTakesSpace)
	422	+ needsH = false; // (Issue #2562)
	423	+ var needsV = scrollHeight > measure.clientHeight;
	424	+
	425	+ if (needsV) {
	426	+ d.scrollbarV.style.display = "block";
	427	+ d.scrollbarV.style.bottom = needsH ? sWidth + "px" : "0";
	428	+ // A bug in IE8 can cause this value to be negative, so guard it.
	429	+ d.scrollbarV.firstChild.style.height =
	430	+ Math.max(0, scrollHeight - measure.clientHeight + (measure.barHeight || d.scrollbarV.clientHeight)) + "px";
	431	+ } else {
	432	+ d.scrollbarV.style.display = "";
	433	+ d.scrollbarV.firstChild.style.height = "0";
	434	+ }
	435	+ if (needsH) {
	436	+ d.scrollbarH.style.display = "block";
	437	+ d.scrollbarH.style.right = needsV ? sWidth + "px" : "0";
	438	+ d.scrollbarH.firstChild.style.width =
	439	+ (measure.scrollWidth - measure.clientWidth + (measure.barWidth || d.scrollbarH.clientWidth)) + "px";
	440	+ } else {
	441	+ d.scrollbarH.style.display = "";
	442	+ d.scrollbarH.firstChild.style.width = "0";
	443	+ }
	444	+ if (needsH && needsV) {
	445	+ d.scrollbarFiller.style.display = "block";
	446	+ d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = sWidth + "px";
	447	+ } else d.scrollbarFiller.style.display = "";
	448	+ if (needsH && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
	449	+ d.gutterFiller.style.display = "block";
	450	+ d.gutterFiller.style.height = sWidth + "px";
	451	+ d.gutterFiller.style.width = d.gutters.offsetWidth + "px";
	452	+ } else d.gutterFiller.style.display = "";
	453	+
	454	+ if (!cm.state.checkedOverlayScrollbar && measure.clientHeight > 0) {
	455	+ if (sWidth === 0) {
	456	+ var w = mac && !mac_geMountainLion ? "12px" : "18px";
	457	+ d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = w;
	458	+ var barMouseDown = function(e) {
	459	+ if (e_target(e) != d.scrollbarV && e_target(e) != d.scrollbarH)
	460	+ operation(cm, onMouseDown)(e);
	461	+ };
	462	+ on(d.scrollbarV, "mousedown", barMouseDown);
	463	+ on(d.scrollbarH, "mousedown", barMouseDown);
	464	+ }
	465	+ cm.state.checkedOverlayScrollbar = true;
	466	+ }
	467	+ }
	468	+
	469	+ // Compute the lines that are visible in a given viewport (defaults
	470	+ // the the current scroll position). viewport may contain top,
	471	+ // height, and ensure (see op.scrollToPos) properties.
	472	+ function visibleLines(display, doc, viewport) {
	473	+ var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
	474	+ top = Math.floor(top - paddingTop(display));
	475	+ var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
	476	+
	477	+ var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
	478	+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
	479	+ // forces those lines into the viewport (if possible).
	480	+ if (viewport && viewport.ensure) {
	481	+ var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
	482	+ if (ensureFrom < from)
	483	+ return {from: ensureFrom,
	484	+ to: lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)};
	485	+ if (Math.min(ensureTo, doc.lastLine()) >= to)
	486	+ return {from: lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight),
	487	+ to: ensureTo};
	488	+ }
	489	+ return {from: from, to: Math.max(to, from + 1)};
	490	+ }
	491	+
	492	+ // LINE NUMBERS
	493	+
	494	+ // Re-align line numbers and gutter marks to compensate for
	495	+ // horizontal scrolling.
	496	+ function alignHorizontally(cm) {
	497	+ var display = cm.display, view = display.view;
	498	+ if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
	499	+ var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
	500	+ var gutterW = display.gutters.offsetWidth, left = comp + "px";
	501	+ for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
	502	+ if (cm.options.fixedGutter && view[i].gutter)
	503	+ view[i].gutter.style.left = left;
	504	+ var align = view[i].alignable;
	505	+ if (align) for (var j = 0; j < align.length; j++)
	506	+ align[j].style.left = left;
	507	+ }
	508	+ if (cm.options.fixedGutter)
	509	+ display.gutters.style.left = (comp + gutterW) + "px";
	510	+ }
	511	+
	512	+ // Used to ensure that the line number gutter is still the right
	513	+ // size for the current document size. Returns true when an update
	514	+ // is needed.
	515	+ function maybeUpdateLineNumberWidth(cm) {
	516	+ if (!cm.options.lineNumbers) return false;
	517	+ var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
	518	+ if (last.length != display.lineNumChars) {
	519	+ var test = display.measure.appendChild(elt("div", [elt("div", last)],
	520	+ "CodeMirror-linenumber CodeMirror-gutter-elt"));
	521	+ var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
	522	+ display.lineGutter.style.width = "";
	523	+ display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding);
	524	+ display.lineNumWidth = display.lineNumInnerWidth + padding;
	525	+ display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
	526	+ display.lineGutter.style.width = display.lineNumWidth + "px";
	527	+ updateGutterSpace(cm);
	528	+ return true;
	529	+ }
	530	+ return false;
	531	+ }
	532	+
	533	+ function lineNumberFor(options, i) {
	534	+ return String(options.lineNumberFormatter(i + options.firstLineNumber));
	535	+ }
	536	+
	537	+ // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
	538	+ // but using getBoundingClientRect to get a sub-pixel-accurate
	539	+ // result.
	540	+ function compensateForHScroll(display) {
	541	+ return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
	542	+ }
	543	+
	544	+ // DISPLAY DRAWING
	545	+
	546	+ function DisplayUpdate(cm, viewport, force) {
	547	+ var display = cm.display;
	548	+
	549	+ this.viewport = viewport;
	550	+ // Store some values that we'll need later (but don't want to force a relayout for)
	551	+ this.visible = visibleLines(display, cm.doc, viewport);
	552	+ this.editorIsHidden = !display.wrapper.offsetWidth;
	553	+ this.wrapperHeight = display.wrapper.clientHeight;
	554	+ this.oldViewFrom = display.viewFrom; this.oldViewTo = display.viewTo;
	555	+ this.oldScrollerWidth = display.scroller.clientWidth;
	556	+ this.force = force;
	557	+ this.dims = getDimensions(cm);
	558	+ }
	559	+
	560	+ // Does the actual updating of the line display. Bails out
	561	+ // (returning false) when there is nothing to be done and forced is
	562	+ // false.
	563	+ function updateDisplayIfNeeded(cm, update) {
	564	+ var display = cm.display, doc = cm.doc;
	565	+ if (update.editorIsHidden) {
	566	+ resetView(cm);
	567	+ return false;
	568	+ }
	569	+
	570	+ // Bail out if the visible area is already rendered and nothing changed.
	571	+ if (!update.force &&
	572	+ update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
	573	+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
	574	+ countDirtyView(cm) == 0)
	575	+ return false;
	576	+
	577	+ if (maybeUpdateLineNumberWidth(cm)) {
	578	+ resetView(cm);
	579	+ update.dims = getDimensions(cm);
	580	+ }
	581	+
	582	+ // Compute a suitable new viewport (from & to)
	583	+ var end = doc.first + doc.size;
	584	+ var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
	585	+ var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
	586	+ if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
	587	+ if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
	588	+ if (sawCollapsedSpans) {
	589	+ from = visualLineNo(cm.doc, from);
	590	+ to = visualLineEndNo(cm.doc, to);
	591	+ }
	592	+
	593	+ var different = from != display.viewFrom || to != display.viewTo ||
	594	+ display.lastSizeC != update.wrapperHeight;
	595	+ adjustView(cm, from, to);
	596	+
	597	+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
	598	+ // Position the mover div to align with the current scroll position
	599	+ cm.display.mover.style.top = display.viewOffset + "px";
	600	+
	601	+ var toUpdate = countDirtyView(cm);
	602	+ if (!different && toUpdate == 0 && !update.force &&
	603	+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
	604	+ return false;
	605	+
	606	+ // For big changes, we hide the enclosing element during the
	607	+ // update, since that speeds up the operations on most browsers.
	608	+ var focused = activeElt();
	609	+ if (toUpdate > 4) display.lineDiv.style.display = "none";
	610	+ patchDisplay(cm, display.updateLineNumbers, update.dims);
	611	+ if (toUpdate > 4) display.lineDiv.style.display = "";
	612	+ // There might have been a widget with a focused element that got
	613	+ // hidden or updated, if so re-focus it.
	614	+ if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
	615	+
	616	+ // Prevent selection and cursors from interfering with the scroll
	617	+ // width.
	618	+ removeChildren(display.cursorDiv);
	619	+ removeChildren(display.selectionDiv);
	620	+
	621	+ if (different) {
	622	+ display.lastSizeC = update.wrapperHeight;
	623	+ startWorker(cm, 400);
	624	+ }
	625	+
	626	+ display.updateLineNumbers = null;
	627	+
	628	+ return true;
	629	+ }
	630	+
	631	+ function postUpdateDisplay(cm, update) {
	632	+ var force = update.force, viewport = update.viewport;
	633	+ for (var first = true;; first = false) {
	634	+ if (first && cm.options.lineWrapping && update.oldScrollerWidth != cm.display.scroller.clientWidth) {
	635	+ force = true;
	636	+ } else {
	637	+ force = false;
	638	+ // Clip forced viewport to actual scrollable area.
	639	+ if (viewport && viewport.top != null)
	640	+ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - scrollerCutOff -
	641	+ cm.display.scroller.clientHeight, viewport.top)};
	642	+ // Updated line heights might result in the drawn area not
	643	+ // actually covering the viewport. Keep looping until it does.
	644	+ update.visible = visibleLines(cm.display, cm.doc, viewport);
	645	+ if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
	646	+ break;
	647	+ }
	648	+ if (!updateDisplayIfNeeded(cm, update)) break;
	649	+ updateHeightsInViewport(cm);
	650	+ var barMeasure = measureForScrollbars(cm);
	651	+ updateSelection(cm);
	652	+ setDocumentHeight(cm, barMeasure);
	653	+ updateScrollbars(cm, barMeasure);
	654	+ }
	655	+
	656	+ signalLater(cm, "update", cm);
	657	+ if (cm.display.viewFrom != update.oldViewFrom || cm.display.viewTo != update.oldViewTo)
	658	+ signalLater(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
	659	+ }
	660	+
	661	+ function updateDisplaySimple(cm, viewport) {
	662	+ var update = new DisplayUpdate(cm, viewport);
	663	+ if (updateDisplayIfNeeded(cm, update)) {
	664	+ updateHeightsInViewport(cm);
	665	+ postUpdateDisplay(cm, update);
	666	+ var barMeasure = measureForScrollbars(cm);
	667	+ updateSelection(cm);
	668	+ setDocumentHeight(cm, barMeasure);
	669	+ updateScrollbars(cm, barMeasure);
	670	+ }
	671	+ }
	672	+
	673	+ function setDocumentHeight(cm, measure) {
	674	+ cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = measure.docHeight + "px";
	675	+ cm.display.gutters.style.height = Math.max(measure.docHeight, measure.clientHeight - scrollerCutOff) + "px";
	676	+ }
	677	+
	678	+ function checkForWebkitWidthBug(cm, measure) {
	679	+ // Work around Webkit bug where it sometimes reserves space for a
	680	+ // non-existing phantom scrollbar in the scroller (Issue #2420)
	681	+ if (cm.display.sizer.offsetWidth + cm.display.gutters.offsetWidth < cm.display.scroller.clientWidth - 1) {
	682	+ cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = "0px";
	683	+ cm.display.gutters.style.height = measure.docHeight + "px";
	684	+ }
	685	+ }
	686	+
	687	+ // Read the actual heights of the rendered lines, and update their
	688	+ // stored heights to match.
	689	+ function updateHeightsInViewport(cm) {
	690	+ var display = cm.display;
	691	+ var prevBottom = display.lineDiv.offsetTop;
	692	+ for (var i = 0; i < display.view.length; i++) {
	693	+ var cur = display.view[i], height;
	694	+ if (cur.hidden) continue;
	695	+ if (ie && ie_version < 8) {
	696	+ var bot = cur.node.offsetTop + cur.node.offsetHeight;
	697	+ height = bot - prevBottom;
	698	+ prevBottom = bot;
	699	+ } else {
	700	+ var box = cur.node.getBoundingClientRect();
	701	+ height = box.bottom - box.top;
	702	+ }
	703	+ var diff = cur.line.height - height;
	704	+ if (height < 2) height = textHeight(display);
	705	+ if (diff > .001 || diff < -.001) {
	706	+ updateLineHeight(cur.line, height);
	707	+ updateWidgetHeight(cur.line);
	708	+ if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
	709	+ updateWidgetHeight(cur.rest[j]);
	710	+ }
	711	+ }
	712	+ }
	713	+
	714	+ // Read and store the height of line widgets associated with the
	715	+ // given line.
	716	+ function updateWidgetHeight(line) {
	717	+ if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
	718	+ line.widgets[i].height = line.widgets[i].node.offsetHeight;
	719	+ }
	720	+
	721	+ // Do a bulk-read of the DOM positions and sizes needed to draw the
	722	+ // view, so that we don't interleave reading and writing to the DOM.
	723	+ function getDimensions(cm) {
	724	+ var d = cm.display, left = {}, width = {};
	725	+ var gutterLeft = d.gutters.clientLeft;
	726	+ for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
	727	+ left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
	728	+ width[cm.options.gutters[i]] = n.clientWidth;
	729	+ }
	730	+ return {fixedPos: compensateForHScroll(d),
	731	+ gutterTotalWidth: d.gutters.offsetWidth,
	732	+ gutterLeft: left,
	733	+ gutterWidth: width,
	734	+ wrapperWidth: d.wrapper.clientWidth};
	735	+ }
	736	+
	737	+ // Sync the actual display DOM structure with display.view, removing
	738	+ // nodes for lines that are no longer in view, and creating the ones
	739	+ // that are not there yet, and updating the ones that are out of
	740	+ // date.
	741	+ function patchDisplay(cm, updateNumbersFrom, dims) {
	742	+ var display = cm.display, lineNumbers = cm.options.lineNumbers;
	743	+ var container = display.lineDiv, cur = container.firstChild;
	744	+
	745	+ function rm(node) {
	746	+ var next = node.nextSibling;
	747	+ // Works around a throw-scroll bug in OS X Webkit
	748	+ if (webkit && mac && cm.display.currentWheelTarget == node)
	749	+ node.style.display = "none";
	750	+ else
	751	+ node.parentNode.removeChild(node);
	752	+ return next;
	753	+ }
	754	+
	755	+ var view = display.view, lineN = display.viewFrom;
	756	+ // Loop over the elements in the view, syncing cur (the DOM nodes
	757	+ // in display.lineDiv) with the view as we go.
	758	+ for (var i = 0; i < view.length; i++) {
	759	+ var lineView = view[i];
	760	+ if (lineView.hidden) {
	761	+ } else if (!lineView.node) { // Not drawn yet
	762	+ var node = buildLineElement(cm, lineView, lineN, dims);
	763	+ container.insertBefore(node, cur);
	764	+ } else { // Already drawn
	765	+ while (cur != lineView.node) cur = rm(cur);
	766	+ var updateNumber = lineNumbers && updateNumbersFrom != null &&
	767	+ updateNumbersFrom <= lineN && lineView.lineNumber;
	768	+ if (lineView.changes) {
	769	+ if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
	770	+ updateLineForChanges(cm, lineView, lineN, dims);
	771	+ }
	772	+ if (updateNumber) {
	773	+ removeChildren(lineView.lineNumber);
	774	+ lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
	775	+ }
	776	+ cur = lineView.node.nextSibling;
	777	+ }
	778	+ lineN += lineView.size;
	779	+ }
	780	+ while (cur) cur = rm(cur);
	781	+ }
	782	+
	783	+ // When an aspect of a line changes, a string is added to
	784	+ // lineView.changes. This updates the relevant part of the line's
	785	+ // DOM structure.
	786	+ function updateLineForChanges(cm, lineView, lineN, dims) {
	787	+ for (var j = 0; j < lineView.changes.length; j++) {
	788	+ var type = lineView.changes[j];
	789	+ if (type == "text") updateLineText(cm, lineView);
	790	+ else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
	791	+ else if (type == "class") updateLineClasses(lineView);
	792	+ else if (type == "widget") updateLineWidgets(lineView, dims);
	793	+ }
	794	+ lineView.changes = null;
	795	+ }
	796	+
	797	+ // Lines with gutter elements, widgets or a background class need to
	798	+ // be wrapped, and have the extra elements added to the wrapper div
	799	+ function ensureLineWrapped(lineView) {
	800	+ if (lineView.node == lineView.text) {
	801	+ lineView.node = elt("div", null, null, "position: relative");
	802	+ if (lineView.text.parentNode)
	803	+ lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
	804	+ lineView.node.appendChild(lineView.text);
	805	+ if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
	806	+ }
	807	+ return lineView.node;
	808	+ }
	809	+
	810	+ function updateLineBackground(lineView) {
	811	+ var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
	812	+ if (cls) cls += " CodeMirror-linebackground";
	813	+ if (lineView.background) {
	814	+ if (cls) lineView.background.className = cls;
	815	+ else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
	816	+ } else if (cls) {
	817	+ var wrap = ensureLineWrapped(lineView);
	818	+ lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
	819	+ }
	820	+ }
	821	+
	822	+ // Wrapper around buildLineContent which will reuse the structure
	823	+ // in display.externalMeasured when possible.
	824	+ function getLineContent(cm, lineView) {
	825	+ var ext = cm.display.externalMeasured;
	826	+ if (ext && ext.line == lineView.line) {
	827	+ cm.display.externalMeasured = null;
	828	+ lineView.measure = ext.measure;
	829	+ return ext.built;
	830	+ }
	831	+ return buildLineContent(cm, lineView);
	832	+ }
	833	+
	834	+ // Redraw the line's text. Interacts with the background and text
	835	+ // classes because the mode may output tokens that influence these
	836	+ // classes.
	837	+ function updateLineText(cm, lineView) {
	838	+ var cls = lineView.text.className;
	839	+ var built = getLineContent(cm, lineView);
	840	+ if (lineView.text == lineView.node) lineView.node = built.pre;
	841	+ lineView.text.parentNode.replaceChild(built.pre, lineView.text);
	842	+ lineView.text = built.pre;
	843	+ if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
	844	+ lineView.bgClass = built.bgClass;
	845	+ lineView.textClass = built.textClass;
	846	+ updateLineClasses(lineView);
	847	+ } else if (cls) {
	848	+ lineView.text.className = cls;
	849	+ }
	850	+ }
	851	+
	852	+ function updateLineClasses(lineView) {
	853	+ updateLineBackground(lineView);
	854	+ if (lineView.line.wrapClass)
	855	+ ensureLineWrapped(lineView).className = lineView.line.wrapClass;
	856	+ else if (lineView.node != lineView.text)
	857	+ lineView.node.className = "";
	858	+ var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
	859	+ lineView.text.className = textClass || "";
	860	+ }
	861	+
	862	+ function updateLineGutter(cm, lineView, lineN, dims) {
	863	+ if (lineView.gutter) {
	864	+ lineView.node.removeChild(lineView.gutter);
	865	+ lineView.gutter = null;
	866	+ }
	867	+ var markers = lineView.line.gutterMarkers;
	868	+ if (cm.options.lineNumbers || markers) {
	869	+ var wrap = ensureLineWrapped(lineView);
	870	+ var gutterWrap = lineView.gutter =
	871	+ wrap.insertBefore(elt("div", null, "CodeMirror-gutter-wrapper", "position: absolute; left: " +
	872	+ (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"),
	873	+ lineView.text);
	874	+ if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
	875	+ lineView.lineNumber = gutterWrap.appendChild(
	876	+ elt("div", lineNumberFor(cm.options, lineN),
	877	+ "CodeMirror-linenumber CodeMirror-gutter-elt",
	878	+ "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
	879	+ + cm.display.lineNumInnerWidth + "px"));
	880	+ if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
	881	+ var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
	882	+ if (found)
	883	+ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
	884	+ dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
	885	+ }
	886	+ }
	887	+ }
	888	+
	889	+ function updateLineWidgets(lineView, dims) {
	890	+ if (lineView.alignable) lineView.alignable = null;
	891	+ for (var node = lineView.node.firstChild, next; node; node = next) {
	892	+ var next = node.nextSibling;
	893	+ if (node.className == "CodeMirror-linewidget")
	894	+ lineView.node.removeChild(node);
	895	+ }
	896	+ insertLineWidgets(lineView, dims);
	897	+ }
	898	+
	899	+ // Build a line's DOM representation from scratch
	900	+ function buildLineElement(cm, lineView, lineN, dims) {
	901	+ var built = getLineContent(cm, lineView);
	902	+ lineView.text = lineView.node = built.pre;
	903	+ if (built.bgClass) lineView.bgClass = built.bgClass;
	904	+ if (built.textClass) lineView.textClass = built.textClass;
	905	+
	906	+ updateLineClasses(lineView);
	907	+ updateLineGutter(cm, lineView, lineN, dims);
	908	+ insertLineWidgets(lineView, dims);
	909	+ return lineView.node;
	910	+ }
	911	+
	912	+ // A lineView may contain multiple logical lines (when merged by
	913	+ // collapsed spans). The widgets for all of them need to be drawn.
	914	+ function insertLineWidgets(lineView, dims) {
	915	+ insertLineWidgetsFor(lineView.line, lineView, dims, true);
	916	+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
	917	+ insertLineWidgetsFor(lineView.rest[i], lineView, dims, false);
	918	+ }
	919	+
	920	+ function insertLineWidgetsFor(line, lineView, dims, allowAbove) {
	921	+ if (!line.widgets) return;
	922	+ var wrap = ensureLineWrapped(lineView);
	923	+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
	924	+ var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
	925	+ if (!widget.handleMouseEvents) node.ignoreEvents = true;
	926	+ positionLineWidget(widget, node, lineView, dims);
	927	+ if (allowAbove && widget.above)
	928	+ wrap.insertBefore(node, lineView.gutter || lineView.text);
	929	+ else
	930	+ wrap.appendChild(node);
	931	+ signalLater(widget, "redraw");
	932	+ }
	933	+ }
	934	+
	935	+ function positionLineWidget(widget, node, lineView, dims) {
	936	+ if (widget.noHScroll) {
	937	+ (lineView.alignable || (lineView.alignable = [])).push(node);
	938	+ var width = dims.wrapperWidth;
	939	+ node.style.left = dims.fixedPos + "px";
	940	+ if (!widget.coverGutter) {
	941	+ width -= dims.gutterTotalWidth;
	942	+ node.style.paddingLeft = dims.gutterTotalWidth + "px";
	943	+ }
	944	+ node.style.width = width + "px";
	945	+ }
	946	+ if (widget.coverGutter) {
	947	+ node.style.zIndex = 5;
	948	+ node.style.position = "relative";
	949	+ if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
	950	+ }
	951	+ }
	952	+
	953	+ // POSITION OBJECT
	954	+
	955	+ // A Pos instance represents a position within the text.
	956	+ var Pos = CodeMirror.Pos = function(line, ch) {
	957	+ if (!(this instanceof Pos)) return new Pos(line, ch);
	958	+ this.line = line; this.ch = ch;
	959	+ };
	960	+
	961	+ // Compare two positions, return 0 if they are the same, a negative
	962	+ // number when a is less, and a positive number otherwise.
	963	+ var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
	964	+
	965	+ function copyPos(x) {return Pos(x.line, x.ch);}
	966	+ function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
	967	+ function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
	968	+
	969	+ // SELECTION / CURSOR
	970	+
	971	+ // Selection objects are immutable. A new one is created every time
	972	+ // the selection changes. A selection is one or more non-overlapping
	973	+ // (and non-touching) ranges, sorted, and an integer that indicates
	974	+ // which one is the primary selection (the one that's scrolled into
	975	+ // view, that getCursor returns, etc).
	976	+ function Selection(ranges, primIndex) {
	977	+ this.ranges = ranges;
	978	+ this.primIndex = primIndex;
	979	+ }
	980	+
	981	+ Selection.prototype = {
	982	+ primary: function() { return this.ranges[this.primIndex]; },
	983	+ equals: function(other) {
	984	+ if (other == this) return true;
	985	+ if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
	986	+ for (var i = 0; i < this.ranges.length; i++) {
	987	+ var here = this.ranges[i], there = other.ranges[i];
	988	+ if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
	989	+ }
	990	+ return true;
	991	+ },
	992	+ deepCopy: function() {
	993	+ for (var out = [], i = 0; i < this.ranges.length; i++)
	994	+ out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
	995	+ return new Selection(out, this.primIndex);
	996	+ },
	997	+ somethingSelected: function() {
	998	+ for (var i = 0; i < this.ranges.length; i++)
	999	+ if (!this.ranges[i].empty()) return true;
	1000	+ return false;
	1001	+ },
	1002	+ contains: function(pos, end) {
	1003	+ if (!end) end = pos;
	1004	+ for (var i = 0; i < this.ranges.length; i++) {
	1005	+ var range = this.ranges[i];
	1006	+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
	1007	+ return i;
	1008	+ }
	1009	+ return -1;
	1010	+ }
	1011	+ };
	1012	+
	1013	+ function Range(anchor, head) {
	1014	+ this.anchor = anchor; this.head = head;
	1015	+ }
	1016	+
	1017	+ Range.prototype = {
	1018	+ from: function() { return minPos(this.anchor, this.head); },
	1019	+ to: function() { return maxPos(this.anchor, this.head); },
	1020	+ empty: function() {
	1021	+ return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
	1022	+ }
	1023	+ };
	1024	+
	1025	+ // Take an unsorted, potentially overlapping set of ranges, and
	1026	+ // build a selection out of it. 'Consumes' ranges array (modifying
	1027	+ // it).
	1028	+ function normalizeSelection(ranges, primIndex) {
	1029	+ var prim = ranges[primIndex];
	1030	+ ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
	1031	+ primIndex = indexOf(ranges, prim);
	1032	+ for (var i = 1; i < ranges.length; i++) {
	1033	+ var cur = ranges[i], prev = ranges[i - 1];
	1034	+ if (cmp(prev.to(), cur.from()) >= 0) {
	1035	+ var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
	1036	+ var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
	1037	+ if (i <= primIndex) --primIndex;
	1038	+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
	1039	+ }
	1040	+ }
	1041	+ return new Selection(ranges, primIndex);
	1042	+ }
	1043	+
	1044	+ function simpleSelection(anchor, head) {
	1045	+ return new Selection([new Range(anchor, head || anchor)], 0);
	1046	+ }
	1047	+
	1048	+ // Most of the external API clips given positions to make sure they
	1049	+ // actually exist within the document.
	1050	+ function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
	1051	+ function clipPos(doc, pos) {
	1052	+ if (pos.line < doc.first) return Pos(doc.first, 0);
	1053	+ var last = doc.first + doc.size - 1;
	1054	+ if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
	1055	+ return clipToLen(pos, getLine(doc, pos.line).text.length);
	1056	+ }
	1057	+ function clipToLen(pos, linelen) {
	1058	+ var ch = pos.ch;
	1059	+ if (ch == null || ch > linelen) return Pos(pos.line, linelen);
	1060	+ else if (ch < 0) return Pos(pos.line, 0);
	1061	+ else return pos;
	1062	+ }
	1063	+ function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
	1064	+ function clipPosArray(doc, array) {
	1065	+ for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
	1066	+ return out;
	1067	+ }
	1068	+
	1069	+ // SELECTION UPDATES
	1070	+
	1071	+ // The 'scroll' parameter given to many of these indicated whether
	1072	+ // the new cursor position should be scrolled into view after
	1073	+ // modifying the selection.
	1074	+
	1075	+ // If shift is held or the extend flag is set, extends a range to
	1076	+ // include a given position (and optionally a second position).
	1077	+ // Otherwise, simply returns the range between the given positions.
	1078	+ // Used for cursor motion and such.
	1079	+ function extendRange(doc, range, head, other) {
	1080	+ if (doc.cm && doc.cm.display.shift || doc.extend) {
	1081	+ var anchor = range.anchor;
	1082	+ if (other) {
	1083	+ var posBefore = cmp(head, anchor) < 0;
	1084	+ if (posBefore != (cmp(other, anchor) < 0)) {
	1085	+ anchor = head;
	1086	+ head = other;
	1087	+ } else if (posBefore != (cmp(head, other) < 0)) {
	1088	+ head = other;
	1089	+ }
	1090	+ }
	1091	+ return new Range(anchor, head);
	1092	+ } else {
	1093	+ return new Range(other || head, head);
	1094	+ }
	1095	+ }
	1096	+
	1097	+ // Extend the primary selection range, discard the rest.
	1098	+ function extendSelection(doc, head, other, options) {
	1099	+ setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
	1100	+ }
	1101	+
	1102	+ // Extend all selections (pos is an array of selections with length
	1103	+ // equal the number of selections)
	1104	+ function extendSelections(doc, heads, options) {
	1105	+ for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
	1106	+ out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
	1107	+ var newSel = normalizeSelection(out, doc.sel.primIndex);
	1108	+ setSelection(doc, newSel, options);
	1109	+ }
	1110	+
	1111	+ // Updates a single range in the selection.
	1112	+ function replaceOneSelection(doc, i, range, options) {
	1113	+ var ranges = doc.sel.ranges.slice(0);
	1114	+ ranges[i] = range;
	1115	+ setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
	1116	+ }
	1117	+
	1118	+ // Reset the selection to a single range.
	1119	+ function setSimpleSelection(doc, anchor, head, options) {
	1120	+ setSelection(doc, simpleSelection(anchor, head), options);
	1121	+ }
	1122	+
	1123	+ // Give beforeSelectionChange handlers a change to influence a
	1124	+ // selection update.
	1125	+ function filterSelectionChange(doc, sel) {
	1126	+ var obj = {
	1127	+ ranges: sel.ranges,
	1128	+ update: function(ranges) {
	1129	+ this.ranges = [];
	1130	+ for (var i = 0; i < ranges.length; i++)
	1131	+ this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
	1132	+ clipPos(doc, ranges[i].head));
	1133	+ }
	1134	+ };
	1135	+ signal(doc, "beforeSelectionChange", doc, obj);
	1136	+ if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
	1137	+ if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
	1138	+ else return sel;
	1139	+ }
	1140	+
	1141	+ function setSelectionReplaceHistory(doc, sel, options) {
	1142	+ var done = doc.history.done, last = lst(done);
	1143	+ if (last && last.ranges) {
	1144	+ done[done.length - 1] = sel;
	1145	+ setSelectionNoUndo(doc, sel, options);
	1146	+ } else {
	1147	+ setSelection(doc, sel, options);
	1148	+ }
	1149	+ }
	1150	+
	1151	+ // Set a new selection.
	1152	+ function setSelection(doc, sel, options) {
	1153	+ setSelectionNoUndo(doc, sel, options);
	1154	+ addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
	1155	+ }
	1156	+
	1157	+ function setSelectionNoUndo(doc, sel, options) {
	1158	+ if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
	1159	+ sel = filterSelectionChange(doc, sel);
	1160	+
	1161	+ var bias = options && options.bias ||
	1162	+ (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
	1163	+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
	1164	+
	1165	+ if (!(options && options.scroll === false) && doc.cm)
	1166	+ ensureCursorVisible(doc.cm);
	1167	+ }
	1168	+
	1169	+ function setSelectionInner(doc, sel) {
	1170	+ if (sel.equals(doc.sel)) return;
	1171	+
	1172	+ doc.sel = sel;
	1173	+
	1174	+ if (doc.cm) {
	1175	+ doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
	1176	+ signalCursorActivity(doc.cm);
	1177	+ }
	1178	+ signalLater(doc, "cursorActivity", doc);
	1179	+ }
	1180	+
	1181	+ // Verify that the selection does not partially select any atomic
	1182	+ // marked ranges.
	1183	+ function reCheckSelection(doc) {
	1184	+ setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
	1185	+ }
	1186	+
	1187	+ // Return a selection that does not partially select any atomic
	1188	+ // ranges.
	1189	+ function skipAtomicInSelection(doc, sel, bias, mayClear) {
	1190	+ var out;
	1191	+ for (var i = 0; i < sel.ranges.length; i++) {
	1192	+ var range = sel.ranges[i];
	1193	+ var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
	1194	+ var newHead = skipAtomic(doc, range.head, bias, mayClear);
	1195	+ if (out || newAnchor != range.anchor || newHead != range.head) {
	1196	+ if (!out) out = sel.ranges.slice(0, i);
	1197	+ out[i] = new Range(newAnchor, newHead);
	1198	+ }
	1199	+ }
	1200	+ return out ? normalizeSelection(out, sel.primIndex) : sel;
	1201	+ }
	1202	+
	1203	+ // Ensure a given position is not inside an atomic range.
	1204	+ function skipAtomic(doc, pos, bias, mayClear) {
	1205	+ var flipped = false, curPos = pos;
	1206	+ var dir = bias || 1;
	1207	+ doc.cantEdit = false;
	1208	+ search: for (;;) {
	1209	+ var line = getLine(doc, curPos.line);
	1210	+ if (line.markedSpans) {
	1211	+ for (var i = 0; i < line.markedSpans.length; ++i) {
	1212	+ var sp = line.markedSpans[i], m = sp.marker;
	1213	+ if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
	1214	+ (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
	1215	+ if (mayClear) {
	1216	+ signal(m, "beforeCursorEnter");
	1217	+ if (m.explicitlyCleared) {
	1218	+ if (!line.markedSpans) break;
	1219	+ else {--i; continue;}
	1220	+ }
	1221	+ }
	1222	+ if (!m.atomic) continue;
	1223	+ var newPos = m.find(dir < 0 ? -1 : 1);
	1224	+ if (cmp(newPos, curPos) == 0) {
	1225	+ newPos.ch += dir;
	1226	+ if (newPos.ch < 0) {
	1227	+ if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
	1228	+ else newPos = null;
	1229	+ } else if (newPos.ch > line.text.length) {
	1230	+ if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
	1231	+ else newPos = null;
	1232	+ }
	1233	+ if (!newPos) {
	1234	+ if (flipped) {
	1235	+ // Driven in a corner -- no valid cursor position found at all
	1236	+ // -- try again *with* clearing, if we didn't already
	1237	+ if (!mayClear) return skipAtomic(doc, pos, bias, true);
	1238	+ // Otherwise, turn off editing until further notice, and return the start of the doc
	1239	+ doc.cantEdit = true;
	1240	+ return Pos(doc.first, 0);
	1241	+ }
	1242	+ flipped = true; newPos = pos; dir = -dir;
	1243	+ }
	1244	+ }
	1245	+ curPos = newPos;
	1246	+ continue search;
	1247	+ }
	1248	+ }
	1249	+ }
	1250	+ return curPos;
	1251	+ }
	1252	+ }
	1253	+
	1254	+ // SELECTION DRAWING
	1255	+
	1256	+ // Redraw the selection and/or cursor
	1257	+ function drawSelection(cm) {
	1258	+ var display = cm.display, doc = cm.doc, result = {};
	1259	+ var curFragment = result.cursors = document.createDocumentFragment();
	1260	+ var selFragment = result.selection = document.createDocumentFragment();
	1261	+
	1262	+ for (var i = 0; i < doc.sel.ranges.length; i++) {
	1263	+ var range = doc.sel.ranges[i];
	1264	+ var collapsed = range.empty();
	1265	+ if (collapsed || cm.options.showCursorWhenSelecting)
	1266	+ drawSelectionCursor(cm, range, curFragment);
	1267	+ if (!collapsed)
	1268	+ drawSelectionRange(cm, range, selFragment);
	1269	+ }
	1270	+
	1271	+ // Move the hidden textarea near the cursor to prevent scrolling artifacts
	1272	+ if (cm.options.moveInputWithCursor) {
	1273	+ var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
	1274	+ var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
	1275	+ result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
	1276	+ headPos.top + lineOff.top - wrapOff.top));
	1277	+ result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
	1278	+ headPos.left + lineOff.left - wrapOff.left));
	1279	+ }
	1280	+
	1281	+ return result;
	1282	+ }
	1283	+
	1284	+ function showSelection(cm, drawn) {
	1285	+ removeChildrenAndAdd(cm.display.cursorDiv, drawn.cursors);
	1286	+ removeChildrenAndAdd(cm.display.selectionDiv, drawn.selection);
	1287	+ if (drawn.teTop != null) {
	1288	+ cm.display.inputDiv.style.top = drawn.teTop + "px";
	1289	+ cm.display.inputDiv.style.left = drawn.teLeft + "px";
	1290	+ }
	1291	+ }
	1292	+
	1293	+ function updateSelection(cm) {
	1294	+ showSelection(cm, drawSelection(cm));
	1295	+ }
	1296	+
	1297	+ // Draws a cursor for the given range
	1298	+ function drawSelectionCursor(cm, range, output) {
	1299	+ var pos = cursorCoords(cm, range.head, "div", null, null, !cm.options.singleCursorHeightPerLine);
	1300	+
	1301	+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
	1302	+ cursor.style.left = pos.left + "px";
	1303	+ cursor.style.top = pos.top + "px";
	1304	+ cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
	1305	+
	1306	+ if (pos.other) {
	1307	+ // Secondary cursor, shown when on a 'jump' in bi-directional text
	1308	+ var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
	1309	+ otherCursor.style.display = "";
	1310	+ otherCursor.style.left = pos.other.left + "px";
	1311	+ otherCursor.style.top = pos.other.top + "px";
	1312	+ otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
	1313	+ }
	1314	+ }
	1315	+
	1316	+ // Draws the given range as a highlighted selection
	1317	+ function drawSelectionRange(cm, range, output) {
	1318	+ var display = cm.display, doc = cm.doc;
	1319	+ var fragment = document.createDocumentFragment();
	1320	+ var padding = paddingH(cm.display), leftSide = padding.left, rightSide = display.lineSpace.offsetWidth - padding.right;
	1321	+
	1322	+ function add(left, top, width, bottom) {
	1323	+ if (top < 0) top = 0;
	1324	+ top = Math.round(top);
	1325	+ bottom = Math.round(bottom);
	1326	+ fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
	1327	+ "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
	1328	+ "px; height: " + (bottom - top) + "px"));
	1329	+ }
	1330	+
	1331	+ function drawForLine(line, fromArg, toArg) {
	1332	+ var lineObj = getLine(doc, line);
	1333	+ var lineLen = lineObj.text.length;
	1334	+ var start, end;
	1335	+ function coords(ch, bias) {
	1336	+ return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
	1337	+ }
	1338	+
	1339	+ iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
	1340	+ var leftPos = coords(from, "left"), rightPos, left, right;
	1341	+ if (from == to) {
	1342	+ rightPos = leftPos;
	1343	+ left = right = leftPos.left;
	1344	+ } else {
	1345	+ rightPos = coords(to - 1, "right");
	1346	+ if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
	1347	+ left = leftPos.left;
	1348	+ right = rightPos.right;
	1349	+ }
	1350	+ if (fromArg == null && from == 0) left = leftSide;
	1351	+ if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
	1352	+ add(left, leftPos.top, null, leftPos.bottom);
	1353	+ left = leftSide;
	1354	+ if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
	1355	+ }
	1356	+ if (toArg == null && to == lineLen) right = rightSide;
	1357	+ if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
	1358	+ start = leftPos;
	1359	+ if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
	1360	+ end = rightPos;
	1361	+ if (left < leftSide + 1) left = leftSide;
	1362	+ add(left, rightPos.top, right - left, rightPos.bottom);
	1363	+ });
	1364	+ return {start: start, end: end};
	1365	+ }
	1366	+
	1367	+ var sFrom = range.from(), sTo = range.to();
	1368	+ if (sFrom.line == sTo.line) {
	1369	+ drawForLine(sFrom.line, sFrom.ch, sTo.ch);
	1370	+ } else {
	1371	+ var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
	1372	+ var singleVLine = visualLine(fromLine) == visualLine(toLine);
	1373	+ var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
	1374	+ var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
	1375	+ if (singleVLine) {
	1376	+ if (leftEnd.top < rightStart.top - 2) {
	1377	+ add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
	1378	+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
	1379	+ } else {
	1380	+ add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
	1381	+ }
	1382	+ }
	1383	+ if (leftEnd.bottom < rightStart.top)
	1384	+ add(leftSide, leftEnd.bottom, null, rightStart.top);
	1385	+ }
	1386	+
	1387	+ output.appendChild(fragment);
	1388	+ }
	1389	+
	1390	+ // Cursor-blinking
	1391	+ function restartBlink(cm) {
	1392	+ if (!cm.state.focused) return;
	1393	+ var display = cm.display;
	1394	+ clearInterval(display.blinker);
	1395	+ var on = true;
	1396	+ display.cursorDiv.style.visibility = "";
	1397	+ if (cm.options.cursorBlinkRate > 0)
	1398	+ display.blinker = setInterval(function() {
	1399	+ display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
	1400	+ }, cm.options.cursorBlinkRate);
	1401	+ else if (cm.options.cursorBlinkRate < 0)
	1402	+ display.cursorDiv.style.visibility = "hidden";
	1403	+ }
	1404	+
	1405	+ // HIGHLIGHT WORKER
	1406	+
	1407	+ function startWorker(cm, time) {
	1408	+ if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
	1409	+ cm.state.highlight.set(time, bind(highlightWorker, cm));
	1410	+ }
	1411	+
	1412	+ function highlightWorker(cm) {
	1413	+ var doc = cm.doc;
	1414	+ if (doc.frontier < doc.first) doc.frontier = doc.first;
	1415	+ if (doc.frontier >= cm.display.viewTo) return;
	1416	+ var end = +new Date + cm.options.workTime;
	1417	+ var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
	1418	+ var changedLines = [];
	1419	+
	1420	+ doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
	1421	+ if (doc.frontier >= cm.display.viewFrom) { // Visible
	1422	+ var oldStyles = line.styles;
	1423	+ var highlighted = highlightLine(cm, line, state, true);
	1424	+ line.styles = highlighted.styles;
	1425	+ var oldCls = line.styleClasses, newCls = highlighted.classes;
	1426	+ if (newCls) line.styleClasses = newCls;
	1427	+ else if (oldCls) line.styleClasses = null;
	1428	+ var ischange = !oldStyles || oldStyles.length != line.styles.length ||
	1429	+ oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
	1430	+ for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
	1431	+ if (ischange) changedLines.push(doc.frontier);
	1432	+ line.stateAfter = copyState(doc.mode, state);
	1433	+ } else {
	1434	+ processLine(cm, line.text, state);
	1435	+ line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
	1436	+ }
	1437	+ ++doc.frontier;
	1438	+ if (+new Date > end) {
	1439	+ startWorker(cm, cm.options.workDelay);
	1440	+ return true;
	1441	+ }
	1442	+ });
	1443	+ if (changedLines.length) runInOp(cm, function() {
	1444	+ for (var i = 0; i < changedLines.length; i++)
	1445	+ regLineChange(cm, changedLines[i], "text");
	1446	+ });
	1447	+ }
	1448	+
	1449	+ // Finds the line to start with when starting a parse. Tries to
	1450	+ // find a line with a stateAfter, so that it can start with a
	1451	+ // valid state. If that fails, it returns the line with the
	1452	+ // smallest indentation, which tends to need the least context to
	1453	+ // parse correctly.
	1454	+ function findStartLine(cm, n, precise) {
	1455	+ var minindent, minline, doc = cm.doc;
	1456	+ var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
	1457	+ for (var search = n; search > lim; --search) {
	1458	+ if (search <= doc.first) return doc.first;
	1459	+ var line = getLine(doc, search - 1);
	1460	+ if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
	1461	+ var indented = countColumn(line.text, null, cm.options.tabSize);
	1462	+ if (minline == null || minindent > indented) {
	1463	+ minline = search - 1;
	1464	+ minindent = indented;
	1465	+ }
	1466	+ }
	1467	+ return minline;
	1468	+ }
	1469	+
	1470	+ function getStateBefore(cm, n, precise) {
	1471	+ var doc = cm.doc, display = cm.display;
	1472	+ if (!doc.mode.startState) return true;
	1473	+ var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
	1474	+ if (!state) state = startState(doc.mode);
	1475	+ else state = copyState(doc.mode, state);
	1476	+ doc.iter(pos, n, function(line) {
	1477	+ processLine(cm, line.text, state);
	1478	+ var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
	1479	+ line.stateAfter = save ? copyState(doc.mode, state) : null;
	1480	+ ++pos;
	1481	+ });
	1482	+ if (precise) doc.frontier = pos;
	1483	+ return state;
	1484	+ }
	1485	+
	1486	+ // POSITION MEASUREMENT
	1487	+
	1488	+ function paddingTop(display) {return display.lineSpace.offsetTop;}
	1489	+ function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
	1490	+ function paddingH(display) {
	1491	+ if (display.cachedPaddingH) return display.cachedPaddingH;
	1492	+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
	1493	+ var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
	1494	+ var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
	1495	+ if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
	1496	+ return data;
	1497	+ }
	1498	+
	1499	+ // Ensure the lineView.wrapping.heights array is populated. This is
	1500	+ // an array of bottom offsets for the lines that make up a drawn
	1501	+ // line. When lineWrapping is on, there might be more than one
	1502	+ // height.
	1503	+ function ensureLineHeights(cm, lineView, rect) {
	1504	+ var wrapping = cm.options.lineWrapping;
	1505	+ var curWidth = wrapping && cm.display.scroller.clientWidth;
	1506	+ if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
	1507	+ var heights = lineView.measure.heights = [];
	1508	+ if (wrapping) {
	1509	+ lineView.measure.width = curWidth;
	1510	+ var rects = lineView.text.firstChild.getClientRects();
	1511	+ for (var i = 0; i < rects.length - 1; i++) {
	1512	+ var cur = rects[i], next = rects[i + 1];
	1513	+ if (Math.abs(cur.bottom - next.bottom) > 2)
	1514	+ heights.push((cur.bottom + next.top) / 2 - rect.top);
	1515	+ }
	1516	+ }
	1517	+ heights.push(rect.bottom - rect.top);
	1518	+ }
	1519	+ }
	1520	+
	1521	+ // Find a line map (mapping character offsets to text nodes) and a
	1522	+ // measurement cache for the given line number. (A line view might
	1523	+ // contain multiple lines when collapsed ranges are present.)
	1524	+ function mapFromLineView(lineView, line, lineN) {
	1525	+ if (lineView.line == line)
	1526	+ return {map: lineView.measure.map, cache: lineView.measure.cache};
	1527	+ for (var i = 0; i < lineView.rest.length; i++)
	1528	+ if (lineView.rest[i] == line)
	1529	+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
	1530	+ for (var i = 0; i < lineView.rest.length; i++)
	1531	+ if (lineNo(lineView.rest[i]) > lineN)
	1532	+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
	1533	+ }
	1534	+
	1535	+ // Render a line into the hidden node display.externalMeasured. Used
	1536	+ // when measurement is needed for a line that's not in the viewport.
	1537	+ function updateExternalMeasurement(cm, line) {
	1538	+ line = visualLine(line);
	1539	+ var lineN = lineNo(line);
	1540	+ var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
	1541	+ view.lineN = lineN;
	1542	+ var built = view.built = buildLineContent(cm, view);
	1543	+ view.text = built.pre;
	1544	+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
	1545	+ return view;
	1546	+ }
	1547	+
	1548	+ // Get a {top, bottom, left, right} box (in line-local coordinates)
	1549	+ // for a given character.
	1550	+ function measureChar(cm, line, ch, bias) {
	1551	+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
	1552	+ }
	1553	+
	1554	+ // Find a line view that corresponds to the given line number.
	1555	+ function findViewForLine(cm, lineN) {
	1556	+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
	1557	+ return cm.display.view[findViewIndex(cm, lineN)];
	1558	+ var ext = cm.display.externalMeasured;
	1559	+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
	1560	+ return ext;
	1561	+ }
	1562	+
	1563	+ // Measurement can be split in two steps, the set-up work that
	1564	+ // applies to the whole line, and the measurement of the actual
	1565	+ // character. Functions like coordsChar, that need to do a lot of
	1566	+ // measurements in a row, can thus ensure that the set-up work is
	1567	+ // only done once.
	1568	+ function prepareMeasureForLine(cm, line) {
	1569	+ var lineN = lineNo(line);
	1570	+ var view = findViewForLine(cm, lineN);
	1571	+ if (view && !view.text)
	1572	+ view = null;
	1573	+ else if (view && view.changes)
	1574	+ updateLineForChanges(cm, view, lineN, getDimensions(cm));
	1575	+ if (!view)
	1576	+ view = updateExternalMeasurement(cm, line);
	1577	+
	1578	+ var info = mapFromLineView(view, line, lineN);
	1579	+ return {
	1580	+ line: line, view: view, rect: null,
	1581	+ map: info.map, cache: info.cache, before: info.before,
	1582	+ hasHeights: false
	1583	+ };
	1584	+ }
	1585	+
	1586	+ // Given a prepared measurement object, measures the position of an
	1587	+ // actual character (or fetches it from the cache).
	1588	+ function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
	1589	+ if (prepared.before) ch = -1;
	1590	+ var key = ch + (bias || ""), found;
	1591	+ if (prepared.cache.hasOwnProperty(key)) {
	1592	+ found = prepared.cache[key];
	1593	+ } else {
	1594	+ if (!prepared.rect)
	1595	+ prepared.rect = prepared.view.text.getBoundingClientRect();
	1596	+ if (!prepared.hasHeights) {
	1597	+ ensureLineHeights(cm, prepared.view, prepared.rect);
	1598	+ prepared.hasHeights = true;
	1599	+ }
	1600	+ found = measureCharInner(cm, prepared, ch, bias);
	1601	+ if (!found.bogus) prepared.cache[key] = found;
	1602	+ }
	1603	+ return {left: found.left, right: found.right,
	1604	+ top: varHeight ? found.rtop : found.top,
	1605	+ bottom: varHeight ? found.rbottom : found.bottom};
	1606	+ }
	1607	+
	1608	+ var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
	1609	+
	1610	+ function measureCharInner(cm, prepared, ch, bias) {
	1611	+ var map = prepared.map;
	1612	+
	1613	+ var node, start, end, collapse;
	1614	+ // First, search the line map for the text node corresponding to,
	1615	+ // or closest to, the target character.
	1616	+ for (var i = 0; i < map.length; i += 3) {
	1617	+ var mStart = map[i], mEnd = map[i + 1];
	1618	+ if (ch < mStart) {
	1619	+ start = 0; end = 1;
	1620	+ collapse = "left";
	1621	+ } else if (ch < mEnd) {
	1622	+ start = ch - mStart;
	1623	+ end = start + 1;
	1624	+ } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
	1625	+ end = mEnd - mStart;
	1626	+ start = end - 1;
	1627	+ if (ch >= mEnd) collapse = "right";
	1628	+ }
	1629	+ if (start != null) {
	1630	+ node = map[i + 2];
	1631	+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
	1632	+ collapse = bias;
	1633	+ if (bias == "left" && start == 0)
	1634	+ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
	1635	+ node = map[(i -= 3) + 2];
	1636	+ collapse = "left";
	1637	+ }
	1638	+ if (bias == "right" && start == mEnd - mStart)
	1639	+ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
	1640	+ node = map[(i += 3) + 2];
	1641	+ collapse = "right";
	1642	+ }
	1643	+ break;
	1644	+ }
	1645	+ }
	1646	+
	1647	+ var rect;
	1648	+ if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
	1649	+ for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
	1650	+ while (start && isExtendingChar(prepared.line.text.charAt(mStart + start))) --start;
	1651	+ while (mStart + end < mEnd && isExtendingChar(prepared.line.text.charAt(mStart + end))) ++end;
	1652	+ if (ie && ie_version < 9 && start == 0 && end == mEnd - mStart) {
	1653	+ rect = node.parentNode.getBoundingClientRect();
	1654	+ } else if (ie && cm.options.lineWrapping) {
	1655	+ var rects = range(node, start, end).getClientRects();
	1656	+ if (rects.length)
	1657	+ rect = rects[bias == "right" ? rects.length - 1 : 0];
	1658	+ else
	1659	+ rect = nullRect;
	1660	+ } else {
	1661	+ rect = range(node, start, end).getBoundingClientRect() || nullRect;
	1662	+ }
	1663	+ if (rect.left || rect.right || start == 0) break;
	1664	+ end = start;
	1665	+ start = start - 1;
	1666	+ collapse = "right";
	1667	+ }
	1668	+ if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
	1669	+ } else { // If it is a widget, simply get the box for the whole widget.
	1670	+ if (start > 0) collapse = bias = "right";
	1671	+ var rects;
	1672	+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
	1673	+ rect = rects[bias == "right" ? rects.length - 1 : 0];
	1674	+ else
	1675	+ rect = node.getBoundingClientRect();
	1676	+ }
	1677	+ if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
	1678	+ var rSpan = node.parentNode.getClientRects()[0];
	1679	+ if (rSpan)
	1680	+ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
	1681	+ else
	1682	+ rect = nullRect;
	1683	+ }
	1684	+
	1685	+ var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
	1686	+ var mid = (rtop + rbot) / 2;
	1687	+ var heights = prepared.view.measure.heights;
	1688	+ for (var i = 0; i < heights.length - 1; i++)
	1689	+ if (mid < heights[i]) break;
	1690	+ var top = i ? heights[i - 1] : 0, bot = heights[i];
	1691	+ var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
	1692	+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
	1693	+ top: top, bottom: bot};
	1694	+ if (!rect.left && !rect.right) result.bogus = true;
	1695	+ if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
	1696	+
	1697	+ return result;
	1698	+ }
	1699	+
	1700	+ // Work around problem with bounding client rects on ranges being
	1701	+ // returned incorrectly when zoomed on IE10 and below.
	1702	+ function maybeUpdateRectForZooming(measure, rect) {
	1703	+ if (!window.screen || screen.logicalXDPI == null ||
	1704	+ screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
	1705	+ return rect;
	1706	+ var scaleX = screen.logicalXDPI / screen.deviceXDPI;
	1707	+ var scaleY = screen.logicalYDPI / screen.deviceYDPI;
	1708	+ return {left: rect.left * scaleX, right: rect.right * scaleX,
	1709	+ top: rect.top * scaleY, bottom: rect.bottom * scaleY};
	1710	+ }
	1711	+
	1712	+ function clearLineMeasurementCacheFor(lineView) {
	1713	+ if (lineView.measure) {
	1714	+ lineView.measure.cache = {};
	1715	+ lineView.measure.heights = null;
	1716	+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
	1717	+ lineView.measure.caches[i] = {};
	1718	+ }
	1719	+ }
	1720	+
	1721	+ function clearLineMeasurementCache(cm) {
	1722	+ cm.display.externalMeasure = null;
	1723	+ removeChildren(cm.display.lineMeasure);
	1724	+ for (var i = 0; i < cm.display.view.length; i++)
	1725	+ clearLineMeasurementCacheFor(cm.display.view[i]);
	1726	+ }
	1727	+
	1728	+ function clearCaches(cm) {
	1729	+ clearLineMeasurementCache(cm);
	1730	+ cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
	1731	+ if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
	1732	+ cm.display.lineNumChars = null;
	1733	+ }
	1734	+
	1735	+ function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
	1736	+ function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
	1737	+
	1738	+ // Converts a {top, bottom, left, right} box from line-local
	1739	+ // coordinates into another coordinate system. Context may be one of
	1740	+ // "line", "div" (display.lineDiv), "local"/null (editor), or "page".
	1741	+ function intoCoordSystem(cm, lineObj, rect, context) {
	1742	+ if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
	1743	+ var size = widgetHeight(lineObj.widgets[i]);
	1744	+ rect.top += size; rect.bottom += size;
	1745	+ }
	1746	+ if (context == "line") return rect;
	1747	+ if (!context) context = "local";
	1748	+ var yOff = heightAtLine(lineObj);
	1749	+ if (context == "local") yOff += paddingTop(cm.display);
	1750	+ else yOff -= cm.display.viewOffset;
	1751	+ if (context == "page" || context == "window") {
	1752	+ var lOff = cm.display.lineSpace.getBoundingClientRect();
	1753	+ yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
	1754	+ var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
	1755	+ rect.left += xOff; rect.right += xOff;
	1756	+ }
	1757	+ rect.top += yOff; rect.bottom += yOff;
	1758	+ return rect;
	1759	+ }
	1760	+
	1761	+ // Coverts a box from "div" coords to another coordinate system.
	1762	+ // Context may be "window", "page", "div", or "local"/null.
	1763	+ function fromCoordSystem(cm, coords, context) {
	1764	+ if (context == "div") return coords;
	1765	+ var left = coords.left, top = coords.top;
	1766	+ // First move into "page" coordinate system
	1767	+ if (context == "page") {
	1768	+ left -= pageScrollX();
	1769	+ top -= pageScrollY();
	1770	+ } else if (context == "local" || !context) {
	1771	+ var localBox = cm.display.sizer.getBoundingClientRect();
	1772	+ left += localBox.left;
	1773	+ top += localBox.top;
	1774	+ }
	1775	+
	1776	+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
	1777	+ return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
	1778	+ }
	1779	+
	1780	+ function charCoords(cm, pos, context, lineObj, bias) {
	1781	+ if (!lineObj) lineObj = getLine(cm.doc, pos.line);
	1782	+ return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
	1783	+ }
	1784	+
	1785	+ // Returns a box for a given cursor position, which may have an
	1786	+ // 'other' property containing the position of the secondary cursor
	1787	+ // on a bidi boundary.
	1788	+ function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
	1789	+ lineObj = lineObj || getLine(cm.doc, pos.line);
	1790	+ if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
	1791	+ function get(ch, right) {
	1792	+ var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
	1793	+ if (right) m.left = m.right; else m.right = m.left;
	1794	+ return intoCoordSystem(cm, lineObj, m, context);
	1795	+ }
	1796	+ function getBidi(ch, partPos) {
	1797	+ var part = order[partPos], right = part.level % 2;
	1798	+ if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
	1799	+ part = order[--partPos];
	1800	+ ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
	1801	+ right = true;
	1802	+ } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
	1803	+ part = order[++partPos];
	1804	+ ch = bidiLeft(part) - part.level % 2;
	1805	+ right = false;
	1806	+ }
	1807	+ if (right && ch == part.to && ch > part.from) return get(ch - 1);
	1808	+ return get(ch, right);
	1809	+ }
	1810	+ var order = getOrder(lineObj), ch = pos.ch;
	1811	+ if (!order) return get(ch);
	1812	+ var partPos = getBidiPartAt(order, ch);
	1813	+ var val = getBidi(ch, partPos);
	1814	+ if (bidiOther != null) val.other = getBidi(ch, bidiOther);
	1815	+ return val;
	1816	+ }
	1817	+
	1818	+ // Used to cheaply estimate the coordinates for a position. Used for
	1819	+ // intermediate scroll updates.
	1820	+ function estimateCoords(cm, pos) {
	1821	+ var left = 0, pos = clipPos(cm.doc, pos);
	1822	+ if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
	1823	+ var lineObj = getLine(cm.doc, pos.line);
	1824	+ var top = heightAtLine(lineObj) + paddingTop(cm.display);
	1825	+ return {left: left, right: left, top: top, bottom: top + lineObj.height};
	1826	+ }
	1827	+
	1828	+ // Positions returned by coordsChar contain some extra information.
	1829	+ // xRel is the relative x position of the input coordinates compared
	1830	+ // to the found position (so xRel > 0 means the coordinates are to
	1831	+ // the right of the character position, for example). When outside
	1832	+ // is true, that means the coordinates lie outside the line's
	1833	+ // vertical range.
	1834	+ function PosWithInfo(line, ch, outside, xRel) {
	1835	+ var pos = Pos(line, ch);
	1836	+ pos.xRel = xRel;
	1837	+ if (outside) pos.outside = true;
	1838	+ return pos;
	1839	+ }
	1840	+
	1841	+ // Compute the character position closest to the given coordinates.
	1842	+ // Input must be lineSpace-local ("div" coordinate system).
	1843	+ function coordsChar(cm, x, y) {
	1844	+ var doc = cm.doc;
	1845	+ y += cm.display.viewOffset;
	1846	+ if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
	1847	+ var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
	1848	+ if (lineN > last)
	1849	+ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
	1850	+ if (x < 0) x = 0;
	1851	+
	1852	+ var lineObj = getLine(doc, lineN);
	1853	+ for (;;) {
	1854	+ var found = coordsCharInner(cm, lineObj, lineN, x, y);
	1855	+ var merged = collapsedSpanAtEnd(lineObj);
	1856	+ var mergedPos = merged && merged.find(0, true);
	1857	+ if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
	1858	+ lineN = lineNo(lineObj = mergedPos.to.line);
	1859	+ else
	1860	+ return found;
	1861	+ }
	1862	+ }
	1863	+
	1864	+ function coordsCharInner(cm, lineObj, lineNo, x, y) {
	1865	+ var innerOff = y - heightAtLine(lineObj);
	1866	+ var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
	1867	+ var preparedMeasure = prepareMeasureForLine(cm, lineObj);
	1868	+
	1869	+ function getX(ch) {
	1870	+ var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
	1871	+ wrongLine = true;
	1872	+ if (innerOff > sp.bottom) return sp.left - adjust;
	1873	+ else if (innerOff < sp.top) return sp.left + adjust;
	1874	+ else wrongLine = false;
	1875	+ return sp.left;
	1876	+ }
	1877	+
	1878	+ var bidi = getOrder(lineObj), dist = lineObj.text.length;
	1879	+ var from = lineLeft(lineObj), to = lineRight(lineObj);
	1880	+ var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
	1881	+
	1882	+ if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
	1883	+ // Do a binary search between these bounds.
	1884	+ for (;;) {
	1885	+ if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
	1886	+ var ch = x < fromX || x - fromX <= toX - x ? from : to;
	1887	+ var xDiff = x - (ch == from ? fromX : toX);
	1888	+ while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
	1889	+ var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
	1890	+ xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
	1891	+ return pos;
	1892	+ }
	1893	+ var step = Math.ceil(dist / 2), middle = from + step;
	1894	+ if (bidi) {
	1895	+ middle = from;
	1896	+ for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
	1897	+ }
	1898	+ var middleX = getX(middle);
	1899	+ if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
	1900	+ else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
	1901	+ }
	1902	+ }
	1903	+
	1904	+ var measureText;
	1905	+ // Compute the default text height.
	1906	+ function textHeight(display) {
	1907	+ if (display.cachedTextHeight != null) return display.cachedTextHeight;
	1908	+ if (measureText == null) {
	1909	+ measureText = elt("pre");
	1910	+ // Measure a bunch of lines, for browsers that compute
	1911	+ // fractional heights.
	1912	+ for (var i = 0; i < 49; ++i) {
	1913	+ measureText.appendChild(document.createTextNode("x"));
	1914	+ measureText.appendChild(elt("br"));
	1915	+ }
	1916	+ measureText.appendChild(document.createTextNode("x"));
	1917	+ }
	1918	+ removeChildrenAndAdd(display.measure, measureText);
	1919	+ var height = measureText.offsetHeight / 50;
	1920	+ if (height > 3) display.cachedTextHeight = height;
	1921	+ removeChildren(display.measure);
	1922	+ return height || 1;
	1923	+ }
	1924	+
	1925	+ // Compute the default character width.
	1926	+ function charWidth(display) {
	1927	+ if (display.cachedCharWidth != null) return display.cachedCharWidth;
	1928	+ var anchor = elt("span", "xxxxxxxxxx");
	1929	+ var pre = elt("pre", [anchor]);
	1930	+ removeChildrenAndAdd(display.measure, pre);
	1931	+ var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
	1932	+ if (width > 2) display.cachedCharWidth = width;
	1933	+ return width || 10;
	1934	+ }
	1935	+
	1936	+ // OPERATIONS
	1937	+
	1938	+ // Operations are used to wrap a series of changes to the editor
	1939	+ // state in such a way that each change won't have to update the
	1940	+ // cursor and display (which would be awkward, slow, and
	1941	+ // error-prone). Instead, display updates are batched and then all
	1942	+ // combined and executed at once.
	1943	+
	1944	+ var operationGroup = null;
	1945	+
	1946	+ var nextOpId = 0;
	1947	+ // Start a new operation.
	1948	+ function startOperation(cm) {
	1949	+ cm.curOp = {
	1950	+ cm: cm,
	1951	+ viewChanged: false, // Flag that indicates that lines might need to be redrawn
	1952	+ startHeight: cm.doc.height, // Used to detect need to update scrollbar
	1953	+ forceUpdate: false, // Used to force a redraw
	1954	+ updateInput: null, // Whether to reset the input textarea
	1955	+ typing: false, // Whether this reset should be careful to leave existing text (for compositing)
	1956	+ changeObjs: null, // Accumulated changes, for firing change events
	1957	+ cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
	1958	+ cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
	1959	+ selectionChanged: false, // Whether the selection needs to be redrawn
	1960	+ updateMaxLine: false, // Set when the widest line needs to be determined anew
	1961	+ scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
	1962	+ scrollToPos: null, // Used to scroll to a specific position
	1963	+ id: ++nextOpId // Unique ID
	1964	+ };
	1965	+ if (operationGroup) {
	1966	+ operationGroup.ops.push(cm.curOp);
	1967	+ } else {
	1968	+ cm.curOp.ownsGroup = operationGroup = {
	1969	+ ops: [cm.curOp],
	1970	+ delayedCallbacks: []
	1971	+ };
	1972	+ }
	1973	+ }
	1974	+
	1975	+ function fireCallbacksForOps(group) {
	1976	+ // Calls delayed callbacks and cursorActivity handlers until no
	1977	+ // new ones appear
	1978	+ var callbacks = group.delayedCallbacks, i = 0;
	1979	+ do {
	1980	+ for (; i < callbacks.length; i++)
	1981	+ callbacks[i]();
	1982	+ for (var j = 0; j < group.ops.length; j++) {
	1983	+ var op = group.ops[j];
	1984	+ if (op.cursorActivityHandlers)
	1985	+ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
	1986	+ op.cursorActivityHandlers[op.cursorActivityCalled++](op.cm);
	1987	+ }
	1988	+ } while (i < callbacks.length);
	1989	+ }
	1990	+
	1991	+ // Finish an operation, updating the display and signalling delayed events
	1992	+ function endOperation(cm) {
	1993	+ var op = cm.curOp, group = op.ownsGroup;
	1994	+ if (!group) return;
	1995	+
	1996	+ try { fireCallbacksForOps(group); }
	1997	+ finally {
	1998	+ operationGroup = null;
	1999	+ for (var i = 0; i < group.ops.length; i++)
	2000	+ group.ops[i].cm.curOp = null;
	2001	+ endOperations(group);
	2002	+ }
	2003	+ }
	2004	+
	2005	+ // The DOM updates done when an operation finishes are batched so
	2006	+ // that the minimum number of relayouts are required.
	2007	+ function endOperations(group) {
	2008	+ var ops = group.ops;
	2009	+ for (var i = 0; i < ops.length; i++) // Read DOM
	2010	+ endOperation_R1(ops[i]);
	2011	+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
	2012	+ endOperation_W1(ops[i]);
	2013	+ for (var i = 0; i < ops.length; i++) // Read DOM
	2014	+ endOperation_R2(ops[i]);
	2015	+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
	2016	+ endOperation_W2(ops[i]);
	2017	+ for (var i = 0; i < ops.length; i++) // Read DOM
	2018	+ endOperation_finish(ops[i]);
	2019	+ }
	2020	+
	2021	+ function endOperation_R1(op) {
	2022	+ var cm = op.cm, display = cm.display;
	2023	+ if (op.updateMaxLine) findMaxLine(cm);
	2024	+
	2025	+ op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
	2026	+ op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
	2027	+ op.scrollToPos.to.line >= display.viewTo) ||
	2028	+ display.maxLineChanged && cm.options.lineWrapping;
	2029	+ op.update = op.mustUpdate &&
	2030	+ new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
	2031	+ }
	2032	+
	2033	+ function endOperation_W1(op) {
	2034	+ op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
	2035	+ }
	2036	+
	2037	+ function endOperation_R2(op) {
	2038	+ var cm = op.cm, display = cm.display;
	2039	+ if (op.updatedDisplay) updateHeightsInViewport(cm);
	2040	+
	2041	+ op.barMeasure = measureForScrollbars(cm);
	2042	+
	2043	+ // If the max line changed since it was last measured, measure it,
	2044	+ // and ensure the document's width matches it.
	2045	+ // updateDisplay_W2 will use these properties to do the actual resizing
	2046	+ if (display.maxLineChanged && !cm.options.lineWrapping) {
	2047	+ op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
	2048	+ op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo +
	2049	+ scrollerCutOff - display.scroller.clientWidth);
	2050	+ }
	2051	+
	2052	+ if (op.updatedDisplay || op.selectionChanged)
	2053	+ op.newSelectionNodes = drawSelection(cm);
	2054	+ }
	2055	+
	2056	+ function endOperation_W2(op) {
	2057	+ var cm = op.cm;
	2058	+
	2059	+ if (op.adjustWidthTo != null) {
	2060	+ cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
	2061	+ if (op.maxScrollLeft < cm.doc.scrollLeft)
	2062	+ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
	2063	+ cm.display.maxLineChanged = false;
	2064	+ }
	2065	+
	2066	+ if (op.newSelectionNodes)
	2067	+ showSelection(cm, op.newSelectionNodes);
	2068	+ if (op.updatedDisplay)
	2069	+ setDocumentHeight(cm, op.barMeasure);
	2070	+ if (op.updatedDisplay || op.startHeight != cm.doc.height)
	2071	+ updateScrollbars(cm, op.barMeasure);
	2072	+
	2073	+ if (op.selectionChanged) restartBlink(cm);
	2074	+
	2075	+ if (cm.state.focused && op.updateInput)
	2076	+ resetInput(cm, op.typing);
	2077	+ }
	2078	+
	2079	+ function endOperation_finish(op) {
	2080	+ var cm = op.cm, display = cm.display, doc = cm.doc;
	2081	+
	2082	+ if (op.adjustWidthTo != null && Math.abs(op.barMeasure.scrollWidth - cm.display.scroller.scrollWidth) > 1)
	2083	+ updateScrollbars(cm);
	2084	+
	2085	+ if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
	2086	+
	2087	+ // Abort mouse wheel delta measurement, when scrolling explicitly
	2088	+ if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
	2089	+ display.wheelStartX = display.wheelStartY = null;
	2090	+
	2091	+ // Propagate the scroll position to the actual DOM scroller
	2092	+ if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
	2093	+ var top = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
	2094	+ display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = top;
	2095	+ }
	2096	+ if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
	2097	+ var left = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft));
	2098	+ display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = left;
	2099	+ alignHorizontally(cm);
	2100	+ }
	2101	+ // If we need to scroll a specific position into view, do so.
	2102	+ if (op.scrollToPos) {
	2103	+ var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
	2104	+ clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
	2105	+ if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
	2106	+ }
	2107	+
	2108	+ // Fire events for markers that are hidden/unidden by editing or
	2109	+ // undoing
	2110	+ var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
	2111	+ if (hidden) for (var i = 0; i < hidden.length; ++i)
	2112	+ if (!hidden[i].lines.length) signal(hidden[i], "hide");
	2113	+ if (unhidden) for (var i = 0; i < unhidden.length; ++i)
	2114	+ if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
	2115	+
	2116	+ if (display.wrapper.offsetHeight)
	2117	+ doc.scrollTop = cm.display.scroller.scrollTop;
	2118	+
	2119	+ // Apply workaround for two webkit bugs
	2120	+ if (op.updatedDisplay && webkit) {
	2121	+ if (cm.options.lineWrapping)
	2122	+ checkForWebkitWidthBug(cm, op.barMeasure); // (Issue #2420)
	2123	+ if (op.barMeasure.scrollWidth > op.barMeasure.clientWidth &&
	2124	+ op.barMeasure.scrollWidth < op.barMeasure.clientWidth + 1 &&
	2125	+ !hScrollbarTakesSpace(cm))
	2126	+ updateScrollbars(cm); // (Issue #2562)
	2127	+ }
	2128	+
	2129	+ // Fire change events, and delayed event handlers
	2130	+ if (op.changeObjs)
	2131	+ signal(cm, "changes", cm, op.changeObjs);
	2132	+ }
	2133	+
	2134	+ // Run the given function in an operation
	2135	+ function runInOp(cm, f) {
	2136	+ if (cm.curOp) return f();
	2137	+ startOperation(cm);
	2138	+ try { return f(); }
	2139	+ finally { endOperation(cm); }
	2140	+ }
	2141	+ // Wraps a function in an operation. Returns the wrapped function.
	2142	+ function operation(cm, f) {
	2143	+ return function() {
	2144	+ if (cm.curOp) return f.apply(cm, arguments);
	2145	+ startOperation(cm);
	2146	+ try { return f.apply(cm, arguments); }
	2147	+ finally { endOperation(cm); }
	2148	+ };
	2149	+ }
	2150	+ // Used to add methods to editor and doc instances, wrapping them in
	2151	+ // operations.
	2152	+ function methodOp(f) {
	2153	+ return function() {
	2154	+ if (this.curOp) return f.apply(this, arguments);
	2155	+ startOperation(this);
	2156	+ try { return f.apply(this, arguments); }
	2157	+ finally { endOperation(this); }
	2158	+ };
	2159	+ }
	2160	+ function docMethodOp(f) {
	2161	+ return function() {
	2162	+ var cm = this.cm;
	2163	+ if (!cm || cm.curOp) return f.apply(this, arguments);
	2164	+ startOperation(cm);
	2165	+ try { return f.apply(this, arguments); }
	2166	+ finally { endOperation(cm); }
	2167	+ };
	2168	+ }
	2169	+
	2170	+ // VIEW TRACKING
	2171	+
	2172	+ // These objects are used to represent the visible (currently drawn)
	2173	+ // part of the document. A LineView may correspond to multiple
	2174	+ // logical lines, if those are connected by collapsed ranges.
	2175	+ function LineView(doc, line, lineN) {
	2176	+ // The starting line
	2177	+ this.line = line;
	2178	+ // Continuing lines, if any
	2179	+ this.rest = visualLineContinued(line);
	2180	+ // Number of logical lines in this visual line
	2181	+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
	2182	+ this.node = this.text = null;
	2183	+ this.hidden = lineIsHidden(doc, line);
	2184	+ }
	2185	+
	2186	+ // Create a range of LineView objects for the given lines.
	2187	+ function buildViewArray(cm, from, to) {
	2188	+ var array = [], nextPos;
	2189	+ for (var pos = from; pos < to; pos = nextPos) {
	2190	+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
	2191	+ nextPos = pos + view.size;
	2192	+ array.push(view);
	2193	+ }
	2194	+ return array;
	2195	+ }
	2196	+
	2197	+ // Updates the display.view data structure for a given change to the
	2198	+ // document. From and to are in pre-change coordinates. Lendiff is
	2199	+ // the amount of lines added or subtracted by the change. This is
	2200	+ // used for changes that span multiple lines, or change the way
	2201	+ // lines are divided into visual lines. regLineChange (below)
	2202	+ // registers single-line changes.
	2203	+ function regChange(cm, from, to, lendiff) {
	2204	+ if (from == null) from = cm.doc.first;
	2205	+ if (to == null) to = cm.doc.first + cm.doc.size;
	2206	+ if (!lendiff) lendiff = 0;
	2207	+
	2208	+ var display = cm.display;
	2209	+ if (lendiff && to < display.viewTo &&
	2210	+ (display.updateLineNumbers == null || display.updateLineNumbers > from))
	2211	+ display.updateLineNumbers = from;
	2212	+
	2213	+ cm.curOp.viewChanged = true;
	2214	+
	2215	+ if (from >= display.viewTo) { // Change after
	2216	+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
	2217	+ resetView(cm);
	2218	+ } else if (to <= display.viewFrom) { // Change before
	2219	+ if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
	2220	+ resetView(cm);
	2221	+ } else {
	2222	+ display.viewFrom += lendiff;
	2223	+ display.viewTo += lendiff;
	2224	+ }
	2225	+ } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
	2226	+ resetView(cm);
	2227	+ } else if (from <= display.viewFrom) { // Top overlap
	2228	+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
	2229	+ if (cut) {
	2230	+ display.view = display.view.slice(cut.index);
	2231	+ display.viewFrom = cut.lineN;
	2232	+ display.viewTo += lendiff;
	2233	+ } else {
	2234	+ resetView(cm);
	2235	+ }
	2236	+ } else if (to >= display.viewTo) { // Bottom overlap
	2237	+ var cut = viewCuttingPoint(cm, from, from, -1);
	2238	+ if (cut) {
	2239	+ display.view = display.view.slice(0, cut.index);
	2240	+ display.viewTo = cut.lineN;
	2241	+ } else {
	2242	+ resetView(cm);
	2243	+ }
	2244	+ } else { // Gap in the middle
	2245	+ var cutTop = viewCuttingPoint(cm, from, from, -1);
	2246	+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
	2247	+ if (cutTop && cutBot) {
	2248	+ display.view = display.view.slice(0, cutTop.index)
	2249	+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
	2250	+ .concat(display.view.slice(cutBot.index));
	2251	+ display.viewTo += lendiff;
	2252	+ } else {
	2253	+ resetView(cm);
	2254	+ }
	2255	+ }
	2256	+
	2257	+ var ext = display.externalMeasured;
	2258	+ if (ext) {
	2259	+ if (to < ext.lineN)
	2260	+ ext.lineN += lendiff;
	2261	+ else if (from < ext.lineN + ext.size)
	2262	+ display.externalMeasured = null;
	2263	+ }
	2264	+ }
	2265	+
	2266	+ // Register a change to a single line. Type must be one of "text",
	2267	+ // "gutter", "class", "widget"
	2268	+ function regLineChange(cm, line, type) {
	2269	+ cm.curOp.viewChanged = true;
	2270	+ var display = cm.display, ext = cm.display.externalMeasured;
	2271	+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
	2272	+ display.externalMeasured = null;
	2273	+
	2274	+ if (line < display.viewFrom || line >= display.viewTo) return;
	2275	+ var lineView = display.view[findViewIndex(cm, line)];
	2276	+ if (lineView.node == null) return;
	2277	+ var arr = lineView.changes || (lineView.changes = []);
	2278	+ if (indexOf(arr, type) == -1) arr.push(type);
	2279	+ }
	2280	+
	2281	+ // Clear the view.
	2282	+ function resetView(cm) {
	2283	+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
	2284	+ cm.display.view = [];
	2285	+ cm.display.viewOffset = 0;
	2286	+ }
	2287	+
	2288	+ // Find the view element corresponding to a given line. Return null
	2289	+ // when the line isn't visible.
	2290	+ function findViewIndex(cm, n) {
	2291	+ if (n >= cm.display.viewTo) return null;
	2292	+ n -= cm.display.viewFrom;
	2293	+ if (n < 0) return null;
	2294	+ var view = cm.display.view;
	2295	+ for (var i = 0; i < view.length; i++) {
	2296	+ n -= view[i].size;
	2297	+ if (n < 0) return i;
	2298	+ }
	2299	+ }
	2300	+
	2301	+ function viewCuttingPoint(cm, oldN, newN, dir) {
	2302	+ var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
	2303	+ if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
	2304	+ return {index: index, lineN: newN};
	2305	+ for (var i = 0, n = cm.display.viewFrom; i < index; i++)
	2306	+ n += view[i].size;
	2307	+ if (n != oldN) {
	2308	+ if (dir > 0) {
	2309	+ if (index == view.length - 1) return null;
	2310	+ diff = (n + view[index].size) - oldN;
	2311	+ index++;
	2312	+ } else {
	2313	+ diff = n - oldN;
	2314	+ }
	2315	+ oldN += diff; newN += diff;
	2316	+ }
	2317	+ while (visualLineNo(cm.doc, newN) != newN) {
	2318	+ if (index == (dir < 0 ? 0 : view.length - 1)) return null;
	2319	+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
	2320	+ index += dir;
	2321	+ }
	2322	+ return {index: index, lineN: newN};
	2323	+ }
	2324	+
	2325	+ // Force the view to cover a given range, adding empty view element
	2326	+ // or clipping off existing ones as needed.
	2327	+ function adjustView(cm, from, to) {
	2328	+ var display = cm.display, view = display.view;
	2329	+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
	2330	+ display.view = buildViewArray(cm, from, to);
	2331	+ display.viewFrom = from;
	2332	+ } else {
	2333	+ if (display.viewFrom > from)
	2334	+ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
	2335	+ else if (display.viewFrom < from)
	2336	+ display.view = display.view.slice(findViewIndex(cm, from));
	2337	+ display.viewFrom = from;
	2338	+ if (display.viewTo < to)
	2339	+ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
	2340	+ else if (display.viewTo > to)
	2341	+ display.view = display.view.slice(0, findViewIndex(cm, to));
	2342	+ }
	2343	+ display.viewTo = to;
	2344	+ }
	2345	+
	2346	+ // Count the number of lines in the view whose DOM representation is
	2347	+ // out of date (or nonexistent).
	2348	+ function countDirtyView(cm) {
	2349	+ var view = cm.display.view, dirty = 0;
	2350	+ for (var i = 0; i < view.length; i++) {
	2351	+ var lineView = view[i];
	2352	+ if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
	2353	+ }
	2354	+ return dirty;
	2355	+ }
	2356	+
	2357	+ // INPUT HANDLING
	2358	+
	2359	+ // Poll for input changes, using the normal rate of polling. This
	2360	+ // runs as long as the editor is focused.
	2361	+ function slowPoll(cm) {
	2362	+ if (cm.display.pollingFast) return;
	2363	+ cm.display.poll.set(cm.options.pollInterval, function() {
	2364	+ readInput(cm);
	2365	+ if (cm.state.focused) slowPoll(cm);
	2366	+ });
	2367	+ }
	2368	+
	2369	+ // When an event has just come in that is likely to add or change
	2370	+ // something in the input textarea, we poll faster, to ensure that
	2371	+ // the change appears on the screen quickly.
	2372	+ function fastPoll(cm) {
	2373	+ var missed = false;
	2374	+ cm.display.pollingFast = true;
	2375	+ function p() {
	2376	+ var changed = readInput(cm);
	2377	+ if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);}
	2378	+ else {cm.display.pollingFast = false; slowPoll(cm);}
	2379	+ }
	2380	+ cm.display.poll.set(20, p);
	2381	+ }
	2382	+
	2383	+ // This will be set to an array of strings when copying, so that,
	2384	+ // when pasting, we know what kind of selections the copied text
	2385	+ // was made out of.
	2386	+ var lastCopied = null;
	2387	+
	2388	+ // Read input from the textarea, and update the document to match.
	2389	+ // When something is selected, it is present in the textarea, and
	2390	+ // selected (unless it is huge, in which case a placeholder is
	2391	+ // used). When nothing is selected, the cursor sits after previously
	2392	+ // seen text (can be empty), which is stored in prevInput (we must
	2393	+ // not reset the textarea when typing, because that breaks IME).
	2394	+ function readInput(cm) {
	2395	+ var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc;
	2396	+ // Since this is called a *lot*, try to bail out as cheaply as
	2397	+ // possible when it is clear that nothing happened. hasSelection
	2398	+ // will be the case when there is a lot of text in the textarea,
	2399	+ // in which case reading its value would be expensive.
	2400	+ if (!cm.state.focused || (hasSelection(input) && !prevInput) || isReadOnly(cm) || cm.options.disableInput)
	2401	+ return false;
	2402	+ // See paste handler for more on the fakedLastChar kludge
	2403	+ if (cm.state.pasteIncoming && cm.state.fakedLastChar) {
	2404	+ input.value = input.value.substring(0, input.value.length - 1);
	2405	+ cm.state.fakedLastChar = false;
	2406	+ }
	2407	+ var text = input.value;
	2408	+ // If nothing changed, bail.
	2409	+ if (text == prevInput && !cm.somethingSelected()) return false;
	2410	+ // Work around nonsensical selection resetting in IE9/10, and
	2411	+ // inexplicable appearance of private area unicode characters on
	2412	+ // some key combos in Mac (#2689).
	2413	+ if (ie && ie_version >= 9 && cm.display.inputHasSelection === text ||
	2414	+ mac && /[\uf700-\uf7ff]/.test(text)) {
	2415	+ resetInput(cm);
	2416	+ return false;
	2417	+ }
	2418	+
	2419	+ var withOp = !cm.curOp;
	2420	+ if (withOp) startOperation(cm);
	2421	+ cm.display.shift = false;
	2422	+
	2423	+ if (text.charCodeAt(0) == 0x200b && doc.sel == cm.display.selForContextMenu && !prevInput)
	2424	+ prevInput = "\u200b";
	2425	+ // Find the part of the input that is actually new
	2426	+ var same = 0, l = Math.min(prevInput.length, text.length);
	2427	+ while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
	2428	+ var inserted = text.slice(same), textLines = splitLines(inserted);
	2429	+
	2430	+ // When pasing N lines into N selections, insert one line per selection
	2431	+ var multiPaste = null;
	2432	+ if (cm.state.pasteIncoming && doc.sel.ranges.length > 1) {
	2433	+ if (lastCopied && lastCopied.join("\n") == inserted)
	2434	+ multiPaste = doc.sel.ranges.length % lastCopied.length == 0 && map(lastCopied, splitLines);
	2435	+ else if (textLines.length == doc.sel.ranges.length)
	2436	+ multiPaste = map(textLines, function(l) { return [l]; });
	2437	+ }
	2438	+
	2439	+ // Normal behavior is to insert the new text into every selection
	2440	+ for (var i = doc.sel.ranges.length - 1; i >= 0; i--) {
	2441	+ var range = doc.sel.ranges[i];
	2442	+ var from = range.from(), to = range.to();
	2443	+ // Handle deletion
	2444	+ if (same < prevInput.length)
	2445	+ from = Pos(from.line, from.ch - (prevInput.length - same));
	2446	+ // Handle overwrite
	2447	+ else if (cm.state.overwrite && range.empty() && !cm.state.pasteIncoming)
	2448	+ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
	2449	+ var updateInput = cm.curOp.updateInput;
	2450	+ var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
	2451	+ origin: cm.state.pasteIncoming ? "paste" : cm.state.cutIncoming ? "cut" : "+input"};
	2452	+ makeChange(cm.doc, changeEvent);
	2453	+ signalLater(cm, "inputRead", cm, changeEvent);
	2454	+ // When an 'electric' character is inserted, immediately trigger a reindent
	2455	+ if (inserted && !cm.state.pasteIncoming && cm.options.electricChars &&
	2456	+ cm.options.smartIndent && range.head.ch < 100 &&
	2457	+ (!i || doc.sel.ranges[i - 1].head.line != range.head.line)) {
	2458	+ var mode = cm.getModeAt(range.head);
	2459	+ var end = changeEnd(changeEvent);
	2460	+ if (mode.electricChars) {
	2461	+ for (var j = 0; j < mode.electricChars.length; j++)
	2462	+ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
	2463	+ indentLine(cm, end.line, "smart");
	2464	+ break;
	2465	+ }
	2466	+ } else if (mode.electricInput) {
	2467	+ if (mode.electricInput.test(getLine(doc, end.line).text.slice(0, end.ch)))
	2468	+ indentLine(cm, end.line, "smart");
	2469	+ }
	2470	+ }
	2471	+ }
	2472	+ ensureCursorVisible(cm);
	2473	+ cm.curOp.updateInput = updateInput;
	2474	+ cm.curOp.typing = true;
	2475	+
	2476	+ // Don't leave long text in the textarea, since it makes further polling slow
	2477	+ if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = "";
	2478	+ else cm.display.prevInput = text;
	2479	+ if (withOp) endOperation(cm);
	2480	+ cm.state.pasteIncoming = cm.state.cutIncoming = false;
	2481	+ return true;
	2482	+ }
	2483	+
	2484	+ // Reset the input to correspond to the selection (or to be empty,
	2485	+ // when not typing and nothing is selected)
	2486	+ function resetInput(cm, typing) {
	2487	+ var minimal, selected, doc = cm.doc;
	2488	+ if (cm.somethingSelected()) {
	2489	+ cm.display.prevInput = "";
	2490	+ var range = doc.sel.primary();
	2491	+ minimal = hasCopyEvent &&
	2492	+ (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
	2493	+ var content = minimal ? "-" : selected || cm.getSelection();
	2494	+ cm.display.input.value = content;
	2495	+ if (cm.state.focused) selectInput(cm.display.input);
	2496	+ if (ie && ie_version >= 9) cm.display.inputHasSelection = content;
	2497	+ } else if (!typing) {
	2498	+ cm.display.prevInput = cm.display.input.value = "";
	2499	+ if (ie && ie_version >= 9) cm.display.inputHasSelection = null;
	2500	+ }
	2501	+ cm.display.inaccurateSelection = minimal;
	2502	+ }
	2503	+
	2504	+ function focusInput(cm) {
	2505	+ if (cm.options.readOnly != "nocursor" && (!mobile || activeElt() != cm.display.input))
	2506	+ cm.display.input.focus();
	2507	+ }
	2508	+
	2509	+ function ensureFocus(cm) {
	2510	+ if (!cm.state.focused) { focusInput(cm); onFocus(cm); }
	2511	+ }
	2512	+
	2513	+ function isReadOnly(cm) {
	2514	+ return cm.options.readOnly || cm.doc.cantEdit;
	2515	+ }
	2516	+
	2517	+ // EVENT HANDLERS
	2518	+
	2519	+ // Attach the necessary event handlers when initializing the editor
	2520	+ function registerEventHandlers(cm) {
	2521	+ var d = cm.display;
	2522	+ on(d.scroller, "mousedown", operation(cm, onMouseDown));
	2523	+ // Older IE's will not fire a second mousedown for a double click
	2524	+ if (ie && ie_version < 11)
	2525	+ on(d.scroller, "dblclick", operation(cm, function(e) {
	2526	+ if (signalDOMEvent(cm, e)) return;
	2527	+ var pos = posFromMouse(cm, e);
	2528	+ if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
	2529	+ e_preventDefault(e);
	2530	+ var word = cm.findWordAt(pos);
	2531	+ extendSelection(cm.doc, word.anchor, word.head);
	2532	+ }));
	2533	+ else
	2534	+ on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
	2535	+ // Prevent normal selection in the editor (we handle our own)
	2536	+ on(d.lineSpace, "selectstart", function(e) {
	2537	+ if (!eventInWidget(d, e)) e_preventDefault(e);
	2538	+ });
	2539	+ // Some browsers fire contextmenu *after* opening the menu, at
	2540	+ // which point we can't mess with it anymore. Context menu is
	2541	+ // handled in onMouseDown for these browsers.
	2542	+ if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
	2543	+
	2544	+ // Sync scrolling between fake scrollbars and real scrollable
	2545	+ // area, ensure viewport is updated when scrolling.
	2546	+ on(d.scroller, "scroll", function() {
	2547	+ if (d.scroller.clientHeight) {
	2548	+ setScrollTop(cm, d.scroller.scrollTop);
	2549	+ setScrollLeft(cm, d.scroller.scrollLeft, true);
	2550	+ signal(cm, "scroll", cm);
	2551	+ }
	2552	+ });
	2553	+ on(d.scrollbarV, "scroll", function() {
	2554	+ if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop);
	2555	+ });
	2556	+ on(d.scrollbarH, "scroll", function() {
	2557	+ if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft);
	2558	+ });
	2559	+
	2560	+ // Listen to wheel events in order to try and update the viewport on time.
	2561	+ on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
	2562	+ on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
	2563	+
	2564	+ // Prevent clicks in the scrollbars from killing focus
	2565	+ function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); }
	2566	+ on(d.scrollbarH, "mousedown", reFocus);
	2567	+ on(d.scrollbarV, "mousedown", reFocus);
	2568	+ // Prevent wrapper from ever scrolling
	2569	+ on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
	2570	+
	2571	+ on(d.input, "keyup", function(e) { onKeyUp.call(cm, e); });
	2572	+ on(d.input, "input", function() {
	2573	+ if (ie && ie_version >= 9 && cm.display.inputHasSelection) cm.display.inputHasSelection = null;
	2574	+ fastPoll(cm);
	2575	+ });
	2576	+ on(d.input, "keydown", operation(cm, onKeyDown));
	2577	+ on(d.input, "keypress", operation(cm, onKeyPress));
	2578	+ on(d.input, "focus", bind(onFocus, cm));
	2579	+ on(d.input, "blur", bind(onBlur, cm));
	2580	+
	2581	+ function drag_(e) {
	2582	+ if (!signalDOMEvent(cm, e)) e_stop(e);
	2583	+ }
	2584	+ if (cm.options.dragDrop) {
	2585	+ on(d.scroller, "dragstart", function(e){onDragStart(cm, e);});
	2586	+ on(d.scroller, "dragenter", drag_);
	2587	+ on(d.scroller, "dragover", drag_);
	2588	+ on(d.scroller, "drop", operation(cm, onDrop));
	2589	+ }
	2590	+ on(d.scroller, "paste", function(e) {
	2591	+ if (eventInWidget(d, e)) return;
	2592	+ cm.state.pasteIncoming = true;
	2593	+ focusInput(cm);
	2594	+ fastPoll(cm);
	2595	+ });
	2596	+ on(d.input, "paste", function() {
	2597	+ // Workaround for webkit bug https://bugs.webkit.org/show_bug.cgi?id=90206
	2598	+ // Add a char to the end of textarea before paste occur so that
	2599	+ // selection doesn't span to the end of textarea.
	2600	+ if (webkit && !cm.state.fakedLastChar && !(new Date - cm.state.lastMiddleDown < 200)) {
	2601	+ var start = d.input.selectionStart, end = d.input.selectionEnd;
	2602	+ d.input.value += "$";
	2603	+ // The selection end needs to be set before the start, otherwise there
	2604	+ // can be an intermediate non-empty selection between the two, which
	2605	+ // can override the middle-click paste buffer on linux and cause the
	2606	+ // wrong thing to get pasted.
	2607	+ d.input.selectionEnd = end;
	2608	+ d.input.selectionStart = start;
	2609	+ cm.state.fakedLastChar = true;
	2610	+ }
	2611	+ cm.state.pasteIncoming = true;
	2612	+ fastPoll(cm);
	2613	+ });
	2614	+
	2615	+ function prepareCopyCut(e) {
	2616	+ if (cm.somethingSelected()) {
	2617	+ lastCopied = cm.getSelections();
	2618	+ if (d.inaccurateSelection) {
	2619	+ d.prevInput = "";
	2620	+ d.inaccurateSelection = false;
	2621	+ d.input.value = lastCopied.join("\n");
	2622	+ selectInput(d.input);
	2623	+ }
	2624	+ } else {
	2625	+ var text = [], ranges = [];
	2626	+ for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
	2627	+ var line = cm.doc.sel.ranges[i].head.line;
	2628	+ var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
	2629	+ ranges.push(lineRange);
	2630	+ text.push(cm.getRange(lineRange.anchor, lineRange.head));
	2631	+ }
	2632	+ if (e.type == "cut") {
	2633	+ cm.setSelections(ranges, null, sel_dontScroll);
	2634	+ } else {
	2635	+ d.prevInput = "";
	2636	+ d.input.value = text.join("\n");
	2637	+ selectInput(d.input);
	2638	+ }
	2639	+ lastCopied = text;
	2640	+ }
	2641	+ if (e.type == "cut") cm.state.cutIncoming = true;
	2642	+ }
	2643	+ on(d.input, "cut", prepareCopyCut);
	2644	+ on(d.input, "copy", prepareCopyCut);
	2645	+
	2646	+ // Needed to handle Tab key in KHTML
	2647	+ if (khtml) on(d.sizer, "mouseup", function() {
	2648	+ if (activeElt() == d.input) d.input.blur();
	2649	+ focusInput(cm);
	2650	+ });
	2651	+ }
	2652	+
	2653	+ // Called when the window resizes
	2654	+ function onResize(cm) {
	2655	+ // Might be a text scaling operation, clear size caches.
	2656	+ var d = cm.display;
	2657	+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
	2658	+ cm.setSize();
	2659	+ }
	2660	+
	2661	+ // MOUSE EVENTS
	2662	+
	2663	+ // Return true when the given mouse event happened in a widget
	2664	+ function eventInWidget(display, e) {
	2665	+ for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
	2666	+ if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true;
	2667	+ }
	2668	+ }
	2669	+
	2670	+ // Given a mouse event, find the corresponding position. If liberal
	2671	+ // is false, it checks whether a gutter or scrollbar was clicked,
	2672	+ // and returns null if it was. forRect is used by rectangular
	2673	+ // selections, and tries to estimate a character position even for
	2674	+ // coordinates beyond the right of the text.
	2675	+ function posFromMouse(cm, e, liberal, forRect) {
	2676	+ var display = cm.display;
	2677	+ if (!liberal) {
	2678	+ var target = e_target(e);
	2679	+ if (target == display.scrollbarH || target == display.scrollbarV ||
	2680	+ target == display.scrollbarFiller || target == display.gutterFiller) return null;
	2681	+ }
	2682	+ var x, y, space = display.lineSpace.getBoundingClientRect();
	2683	+ // Fails unpredictably on IE[67] when mouse is dragged around quickly.
	2684	+ try { x = e.clientX - space.left; y = e.clientY - space.top; }
	2685	+ catch (e) { return null; }
	2686	+ var coords = coordsChar(cm, x, y), line;
	2687	+ if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
	2688	+ var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
	2689	+ coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
	2690	+ }
	2691	+ return coords;
	2692	+ }
	2693	+
	2694	+ // A mouse down can be a single click, double click, triple click,
	2695	+ // start of selection drag, start of text drag, new cursor
	2696	+ // (ctrl-click), rectangle drag (alt-drag), or xwin
	2697	+ // middle-click-paste. Or it might be a click on something we should
	2698	+ // not interfere with, such as a scrollbar or widget.
	2699	+ function onMouseDown(e) {
	2700	+ if (signalDOMEvent(this, e)) return;
	2701	+ var cm = this, display = cm.display;
	2702	+ display.shift = e.shiftKey;
	2703	+
	2704	+ if (eventInWidget(display, e)) {
	2705	+ if (!webkit) {
	2706	+ // Briefly turn off draggability, to allow widgets to do
	2707	+ // normal dragging things.
	2708	+ display.scroller.draggable = false;
	2709	+ setTimeout(function(){display.scroller.draggable = true;}, 100);
	2710	+ }
	2711	+ return;
	2712	+ }
	2713	+ if (clickInGutter(cm, e)) return;
	2714	+ var start = posFromMouse(cm, e);
	2715	+ window.focus();
	2716	+
	2717	+ switch (e_button(e)) {
	2718	+ case 1:
	2719	+ if (start)
	2720	+ leftButtonDown(cm, e, start);
	2721	+ else if (e_target(e) == display.scroller)
	2722	+ e_preventDefault(e);
	2723	+ break;
	2724	+ case 2:
	2725	+ if (webkit) cm.state.lastMiddleDown = +new Date;
	2726	+ if (start) extendSelection(cm.doc, start);
	2727	+ setTimeout(bind(focusInput, cm), 20);
	2728	+ e_preventDefault(e);
	2729	+ break;
	2730	+ case 3:
	2731	+ if (captureRightClick) onContextMenu(cm, e);
	2732	+ break;
	2733	+ }
	2734	+ }
	2735	+
	2736	+ var lastClick, lastDoubleClick;
	2737	+ function leftButtonDown(cm, e, start) {
	2738	+ setTimeout(bind(ensureFocus, cm), 0);
	2739	+
	2740	+ var now = +new Date, type;
	2741	+ if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
	2742	+ type = "triple";
	2743	+ } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
	2744	+ type = "double";
	2745	+ lastDoubleClick = {time: now, pos: start};
	2746	+ } else {
	2747	+ type = "single";
	2748	+ lastClick = {time: now, pos: start};
	2749	+ }
	2750	+
	2751	+ var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey;
	2752	+ if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&
	2753	+ type == "single" && sel.contains(start) > -1 && sel.somethingSelected())
	2754	+ leftButtonStartDrag(cm, e, start, modifier);
	2755	+ else
	2756	+ leftButtonSelect(cm, e, start, type, modifier);
	2757	+ }
	2758	+
	2759	+ // Start a text drag. When it ends, see if any dragging actually
	2760	+ // happen, and treat as a click if it didn't.
	2761	+ function leftButtonStartDrag(cm, e, start, modifier) {
	2762	+ var display = cm.display;
	2763	+ var dragEnd = operation(cm, function(e2) {
	2764	+ if (webkit) display.scroller.draggable = false;
	2765	+ cm.state.draggingText = false;
	2766	+ off(document, "mouseup", dragEnd);
	2767	+ off(display.scroller, "drop", dragEnd);
	2768	+ if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
	2769	+ e_preventDefault(e2);
	2770	+ if (!modifier)
	2771	+ extendSelection(cm.doc, start);
	2772	+ focusInput(cm);
	2773	+ // Work around unexplainable focus problem in IE9 (#2127)
	2774	+ if (ie && ie_version == 9)
	2775	+ setTimeout(function() {document.body.focus(); focusInput(cm);}, 20);
	2776	+ }
	2777	+ });
	2778	+ // Let the drag handler handle this.
	2779	+ if (webkit) display.scroller.draggable = true;
	2780	+ cm.state.draggingText = dragEnd;
	2781	+ // IE's approach to draggable
	2782	+ if (display.scroller.dragDrop) display.scroller.dragDrop();
	2783	+ on(document, "mouseup", dragEnd);
	2784	+ on(display.scroller, "drop", dragEnd);
	2785	+ }
	2786	+
	2787	+ // Normal selection, as opposed to text dragging.
	2788	+ function leftButtonSelect(cm, e, start, type, addNew) {
	2789	+ var display = cm.display, doc = cm.doc;
	2790	+ e_preventDefault(e);
	2791	+
	2792	+ var ourRange, ourIndex, startSel = doc.sel;
	2793	+ if (addNew && !e.shiftKey) {
	2794	+ ourIndex = doc.sel.contains(start);
	2795	+ if (ourIndex > -1)
	2796	+ ourRange = doc.sel.ranges[ourIndex];
	2797	+ else
	2798	+ ourRange = new Range(start, start);
	2799	+ } else {
	2800	+ ourRange = doc.sel.primary();
	2801	+ }
	2802	+
	2803	+ if (e.altKey) {
	2804	+ type = "rect";
	2805	+ if (!addNew) ourRange = new Range(start, start);
	2806	+ start = posFromMouse(cm, e, true, true);
	2807	+ ourIndex = -1;
	2808	+ } else if (type == "double") {
	2809	+ var word = cm.findWordAt(start);
	2810	+ if (cm.display.shift || doc.extend)
	2811	+ ourRange = extendRange(doc, ourRange, word.anchor, word.head);
	2812	+ else
	2813	+ ourRange = word;
	2814	+ } else if (type == "triple") {
	2815	+ var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
	2816	+ if (cm.display.shift || doc.extend)
	2817	+ ourRange = extendRange(doc, ourRange, line.anchor, line.head);
	2818	+ else
	2819	+ ourRange = line;
	2820	+ } else {
	2821	+ ourRange = extendRange(doc, ourRange, start);
	2822	+ }
	2823	+
	2824	+ if (!addNew) {
	2825	+ ourIndex = 0;
	2826	+ setSelection(doc, new Selection([ourRange], 0), sel_mouse);
	2827	+ startSel = doc.sel;
	2828	+ } else if (ourIndex > -1) {
	2829	+ replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
	2830	+ } else {
	2831	+ ourIndex = doc.sel.ranges.length;
	2832	+ setSelection(doc, normalizeSelection(doc.sel.ranges.concat([ourRange]), ourIndex),
	2833	+ {scroll: false, origin: "*mouse"});
	2834	+ }
	2835	+
	2836	+ var lastPos = start;
	2837	+ function extendTo(pos) {
	2838	+ if (cmp(lastPos, pos) == 0) return;
	2839	+ lastPos = pos;
	2840	+
	2841	+ if (type == "rect") {
	2842	+ var ranges = [], tabSize = cm.options.tabSize;
	2843	+ var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
	2844	+ var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
	2845	+ var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
	2846	+ for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
	2847	+ line <= end; line++) {
	2848	+ var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
	2849	+ if (left == right)
	2850	+ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
	2851	+ else if (text.length > leftPos)
	2852	+ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
	2853	+ }
	2854	+ if (!ranges.length) ranges.push(new Range(start, start));
	2855	+ setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
	2856	+ {origin: "*mouse", scroll: false});
	2857	+ cm.scrollIntoView(pos);
	2858	+ } else {
	2859	+ var oldRange = ourRange;
	2860	+ var anchor = oldRange.anchor, head = pos;
	2861	+ if (type != "single") {
	2862	+ if (type == "double")
	2863	+ var range = cm.findWordAt(pos);
	2864	+ else
	2865	+ var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
	2866	+ if (cmp(range.anchor, anchor) > 0) {
	2867	+ head = range.head;
	2868	+ anchor = minPos(oldRange.from(), range.anchor);
	2869	+ } else {
	2870	+ head = range.anchor;
	2871	+ anchor = maxPos(oldRange.to(), range.head);
	2872	+ }
	2873	+ }
	2874	+ var ranges = startSel.ranges.slice(0);
	2875	+ ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
	2876	+ setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
	2877	+ }
	2878	+ }
	2879	+
	2880	+ var editorSize = display.wrapper.getBoundingClientRect();
	2881	+ // Used to ensure timeout re-tries don't fire when another extend
	2882	+ // happened in the meantime (clearTimeout isn't reliable -- at
	2883	+ // least on Chrome, the timeouts still happen even when cleared,
	2884	+ // if the clear happens after their scheduled firing time).
	2885	+ var counter = 0;
	2886	+
	2887	+ function extend(e) {
	2888	+ var curCount = ++counter;
	2889	+ var cur = posFromMouse(cm, e, true, type == "rect");
	2890	+ if (!cur) return;
	2891	+ if (cmp(cur, lastPos) != 0) {
	2892	+ ensureFocus(cm);
	2893	+ extendTo(cur);
	2894	+ var visible = visibleLines(display, doc);
	2895	+ if (cur.line >= visible.to || cur.line < visible.from)
	2896	+ setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
	2897	+ } else {
	2898	+ var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
	2899	+ if (outside) setTimeout(operation(cm, function() {
	2900	+ if (counter != curCount) return;
	2901	+ display.scroller.scrollTop += outside;
	2902	+ extend(e);
	2903	+ }), 50);
	2904	+ }
	2905	+ }
	2906	+
	2907	+ function done(e) {
	2908	+ counter = Infinity;
	2909	+ e_preventDefault(e);
	2910	+ focusInput(cm);
	2911	+ off(document, "mousemove", move);
	2912	+ off(document, "mouseup", up);
	2913	+ doc.history.lastSelOrigin = null;
	2914	+ }
	2915	+
	2916	+ var move = operation(cm, function(e) {
	2917	+ if (!e_button(e)) done(e);
	2918	+ else extend(e);
	2919	+ });
	2920	+ var up = operation(cm, done);
	2921	+ on(document, "mousemove", move);
	2922	+ on(document, "mouseup", up);
	2923	+ }
	2924	+
	2925	+ // Determines whether an event happened in the gutter, and fires the
	2926	+ // handlers for the corresponding event.
	2927	+ function gutterEvent(cm, e, type, prevent, signalfn) {
	2928	+ try { var mX = e.clientX, mY = e.clientY; }
	2929	+ catch(e) { return false; }
	2930	+ if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
	2931	+ if (prevent) e_preventDefault(e);
	2932	+
	2933	+ var display = cm.display;
	2934	+ var lineBox = display.lineDiv.getBoundingClientRect();
	2935	+
	2936	+ if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
	2937	+ mY -= lineBox.top - display.viewOffset;
	2938	+
	2939	+ for (var i = 0; i < cm.options.gutters.length; ++i) {
	2940	+ var g = display.gutters.childNodes[i];
	2941	+ if (g && g.getBoundingClientRect().right >= mX) {
	2942	+ var line = lineAtHeight(cm.doc, mY);
	2943	+ var gutter = cm.options.gutters[i];
	2944	+ signalfn(cm, type, cm, line, gutter, e);
	2945	+ return e_defaultPrevented(e);
	2946	+ }
	2947	+ }
	2948	+ }
	2949	+
	2950	+ function clickInGutter(cm, e) {
	2951	+ return gutterEvent(cm, e, "gutterClick", true, signalLater);
	2952	+ }
	2953	+
	2954	+ // Kludge to work around strange IE behavior where it'll sometimes
	2955	+ // re-fire a series of drag-related events right after the drop (#1551)
	2956	+ var lastDrop = 0;
	2957	+
	2958	+ function onDrop(e) {
	2959	+ var cm = this;
	2960	+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
	2961	+ return;
	2962	+ e_preventDefault(e);
	2963	+ if (ie) lastDrop = +new Date;
	2964	+ var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
	2965	+ if (!pos || isReadOnly(cm)) return;
	2966	+ // Might be a file drop, in which case we simply extract the text
	2967	+ // and insert it.
	2968	+ if (files && files.length && window.FileReader && window.File) {
	2969	+ var n = files.length, text = Array(n), read = 0;
	2970	+ var loadFile = function(file, i) {
	2971	+ var reader = new FileReader;
	2972	+ reader.onload = operation(cm, function() {
	2973	+ text[i] = reader.result;
	2974	+ if (++read == n) {
	2975	+ pos = clipPos(cm.doc, pos);
	2976	+ var change = {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"};
	2977	+ makeChange(cm.doc, change);
	2978	+ setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
	2979	+ }
	2980	+ });
	2981	+ reader.readAsText(file);
	2982	+ };
	2983	+ for (var i = 0; i < n; ++i) loadFile(files[i], i);
	2984	+ } else { // Normal drop
	2985	+ // Don't do a replace if the drop happened inside of the selected text.
	2986	+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
	2987	+ cm.state.draggingText(e);
	2988	+ // Ensure the editor is re-focused
	2989	+ setTimeout(bind(focusInput, cm), 20);
	2990	+ return;
	2991	+ }
	2992	+ try {
	2993	+ var text = e.dataTransfer.getData("Text");
	2994	+ if (text) {
	2995	+ if (cm.state.draggingText && !(mac ? e.metaKey : e.ctrlKey))
	2996	+ var selected = cm.listSelections();
	2997	+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
	2998	+ if (selected) for (var i = 0; i < selected.length; ++i)
	2999	+ replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
	3000	+ cm.replaceSelection(text, "around", "paste");
	3001	+ focusInput(cm);
	3002	+ }
	3003	+ }
	3004	+ catch(e){}
	3005	+ }
	3006	+ }
	3007	+
	3008	+ function onDragStart(cm, e) {
	3009	+ if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
	3010	+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
	3011	+
	3012	+ e.dataTransfer.setData("Text", cm.getSelection());
	3013	+
	3014	+ // Use dummy image instead of default browsers image.
	3015	+ // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
	3016	+ if (e.dataTransfer.setDragImage && !safari) {
	3017	+ var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
	3018	+ img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
	3019	+ if (presto) {
	3020	+ img.width = img.height = 1;
	3021	+ cm.display.wrapper.appendChild(img);
	3022	+ // Force a relayout, or Opera won't use our image for some obscure reason
	3023	+ img._top = img.offsetTop;
	3024	+ }
	3025	+ e.dataTransfer.setDragImage(img, 0, 0);
	3026	+ if (presto) img.parentNode.removeChild(img);
	3027	+ }
	3028	+ }
	3029	+
	3030	+ // SCROLL EVENTS
	3031	+
	3032	+ // Sync the scrollable area and scrollbars, ensure the viewport
	3033	+ // covers the visible area.
	3034	+ function setScrollTop(cm, val) {
	3035	+ if (Math.abs(cm.doc.scrollTop - val) < 2) return;
	3036	+ cm.doc.scrollTop = val;
	3037	+ if (!gecko) updateDisplaySimple(cm, {top: val});
	3038	+ if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
	3039	+ if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val;
	3040	+ if (gecko) updateDisplaySimple(cm);
	3041	+ startWorker(cm, 100);
	3042	+ }
	3043	+ // Sync scroller and scrollbar, ensure the gutter elements are
	3044	+ // aligned.
	3045	+ function setScrollLeft(cm, val, isScroller) {
	3046	+ if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
	3047	+ val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
	3048	+ cm.doc.scrollLeft = val;
	3049	+ alignHorizontally(cm);
	3050	+ if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
	3051	+ if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val;
	3052	+ }
	3053	+
	3054	+ // Since the delta values reported on mouse wheel events are
	3055	+ // unstandardized between browsers and even browser versions, and
	3056	+ // generally horribly unpredictable, this code starts by measuring
	3057	+ // the scroll effect that the first few mouse wheel events have,
	3058	+ // and, from that, detects the way it can convert deltas to pixel
	3059	+ // offsets afterwards.
	3060	+ //
	3061	+ // The reason we want to know the amount a wheel event will scroll
	3062	+ // is that it gives us a chance to update the display before the
	3063	+ // actual scrolling happens, reducing flickering.
	3064	+
	3065	+ var wheelSamples = 0, wheelPixelsPerUnit = null;
	3066	+ // Fill in a browser-detected starting value on browsers where we
	3067	+ // know one. These don't have to be accurate -- the result of them
	3068	+ // being wrong would just be a slight flicker on the first wheel
	3069	+ // scroll (if it is large enough).
	3070	+ if (ie) wheelPixelsPerUnit = -.53;
	3071	+ else if (gecko) wheelPixelsPerUnit = 15;
	3072	+ else if (chrome) wheelPixelsPerUnit = -.7;
	3073	+ else if (safari) wheelPixelsPerUnit = -1/3;
	3074	+
	3075	+ function onScrollWheel(cm, e) {
	3076	+ var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
	3077	+ if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
	3078	+ if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
	3079	+ else if (dy == null) dy = e.wheelDelta;
	3080	+
	3081	+ var display = cm.display, scroll = display.scroller;
	3082	+ // Quit if there's nothing to scroll here
	3083	+ if (!(dx && scroll.scrollWidth > scroll.clientWidth ||
	3084	+ dy && scroll.scrollHeight > scroll.clientHeight)) return;
	3085	+
	3086	+ // Webkit browsers on OS X abort momentum scrolls when the target
	3087	+ // of the scroll event is removed from the scrollable element.
	3088	+ // This hack (see related code in patchDisplay) makes sure the
	3089	+ // element is kept around.
	3090	+ if (dy && mac && webkit) {
	3091	+ outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
	3092	+ for (var i = 0; i < view.length; i++) {
	3093	+ if (view[i].node == cur) {
	3094	+ cm.display.currentWheelTarget = cur;
	3095	+ break outer;
	3096	+ }
	3097	+ }
	3098	+ }
	3099	+ }
	3100	+
	3101	+ // On some browsers, horizontal scrolling will cause redraws to
	3102	+ // happen before the gutter has been realigned, causing it to
	3103	+ // wriggle around in a most unseemly way. When we have an
	3104	+ // estimated pixels/delta value, we just handle horizontal
	3105	+ // scrolling entirely here. It'll be slightly off from native, but
	3106	+ // better than glitching out.
	3107	+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
	3108	+ if (dy)
	3109	+ setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
	3110	+ setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
	3111	+ e_preventDefault(e);
	3112	+ display.wheelStartX = null; // Abort measurement, if in progress
	3113	+ return;
	3114	+ }
	3115	+
	3116	+ // 'Project' the visible viewport to cover the area that is being
	3117	+ // scrolled into view (if we know enough to estimate it).
	3118	+ if (dy && wheelPixelsPerUnit != null) {
	3119	+ var pixels = dy * wheelPixelsPerUnit;
	3120	+ var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
	3121	+ if (pixels < 0) top = Math.max(0, top + pixels - 50);
	3122	+ else bot = Math.min(cm.doc.height, bot + pixels + 50);
	3123	+ updateDisplaySimple(cm, {top: top, bottom: bot});
	3124	+ }
	3125	+
	3126	+ if (wheelSamples < 20) {
	3127	+ if (display.wheelStartX == null) {
	3128	+ display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
	3129	+ display.wheelDX = dx; display.wheelDY = dy;
	3130	+ setTimeout(function() {
	3131	+ if (display.wheelStartX == null) return;
	3132	+ var movedX = scroll.scrollLeft - display.wheelStartX;
	3133	+ var movedY = scroll.scrollTop - display.wheelStartY;
	3134	+ var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
	3135	+ (movedX && display.wheelDX && movedX / display.wheelDX);
	3136	+ display.wheelStartX = display.wheelStartY = null;
	3137	+ if (!sample) return;
	3138	+ wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
	3139	+ ++wheelSamples;
	3140	+ }, 200);
	3141	+ } else {
	3142	+ display.wheelDX += dx; display.wheelDY += dy;
	3143	+ }
	3144	+ }
	3145	+ }
	3146	+
	3147	+ // KEY EVENTS
	3148	+
	3149	+ // Run a handler that was bound to a key.
	3150	+ function doHandleBinding(cm, bound, dropShift) {
	3151	+ if (typeof bound == "string") {
	3152	+ bound = commands[bound];
	3153	+ if (!bound) return false;
	3154	+ }
	3155	+ // Ensure previous input has been read, so that the handler sees a
	3156	+ // consistent view of the document
	3157	+ if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false;
	3158	+ var prevShift = cm.display.shift, done = false;
	3159	+ try {
	3160	+ if (isReadOnly(cm)) cm.state.suppressEdits = true;
	3161	+ if (dropShift) cm.display.shift = false;
	3162	+ done = bound(cm) != Pass;
	3163	+ } finally {
	3164	+ cm.display.shift = prevShift;
	3165	+ cm.state.suppressEdits = false;
	3166	+ }
	3167	+ return done;
	3168	+ }
	3169	+
	3170	+ // Collect the currently active keymaps.
	3171	+ function allKeyMaps(cm) {
	3172	+ var maps = cm.state.keyMaps.slice(0);
	3173	+ if (cm.options.extraKeys) maps.push(cm.options.extraKeys);
	3174	+ maps.push(cm.options.keyMap);
	3175	+ return maps;
	3176	+ }
	3177	+
	3178	+ var maybeTransition;
	3179	+ // Handle a key from the keydown event.
	3180	+ function handleKeyBinding(cm, e) {
	3181	+ // Handle automatic keymap transitions
	3182	+ var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto;
	3183	+ clearTimeout(maybeTransition);
	3184	+ if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
	3185	+ if (getKeyMap(cm.options.keyMap) == startMap) {
	3186	+ cm.options.keyMap = (next.call ? next.call(null, cm) : next);
	3187	+ keyMapChanged(cm);
	3188	+ }
	3189	+ }, 50);
	3190	+
	3191	+ var name = keyName(e, true), handled = false;
	3192	+ if (!name) return false;
	3193	+ var keymaps = allKeyMaps(cm);
	3194	+
	3195	+ if (e.shiftKey) {
	3196	+ // First try to resolve full name (including 'Shift-'). Failing
	3197	+ // that, see if there is a cursor-motion command (starting with
	3198	+ // 'go') bound to the keyname without 'Shift-'.
	3199	+ handled = lookupKey("Shift-" + name, keymaps, function(b) {return doHandleBinding(cm, b, true);})
	3200	+ || lookupKey(name, keymaps, function(b) {
	3201	+ if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
	3202	+ return doHandleBinding(cm, b);
	3203	+ });
	3204	+ } else {
	3205	+ handled = lookupKey(name, keymaps, function(b) { return doHandleBinding(cm, b); });
	3206	+ }
	3207	+
	3208	+ if (handled) {
	3209	+ e_preventDefault(e);
	3210	+ restartBlink(cm);
	3211	+ signalLater(cm, "keyHandled", cm, name, e);
	3212	+ }
	3213	+ return handled;
	3214	+ }
	3215	+
	3216	+ // Handle a key from the keypress event
	3217	+ function handleCharBinding(cm, e, ch) {
	3218	+ var handled = lookupKey("'" + ch + "'", allKeyMaps(cm),
	3219	+ function(b) { return doHandleBinding(cm, b, true); });
	3220	+ if (handled) {
	3221	+ e_preventDefault(e);
	3222	+ restartBlink(cm);
	3223	+ signalLater(cm, "keyHandled", cm, "'" + ch + "'", e);
	3224	+ }
	3225	+ return handled;
	3226	+ }
	3227	+
	3228	+ var lastStoppedKey = null;
	3229	+ function onKeyDown(e) {
	3230	+ var cm = this;
	3231	+ ensureFocus(cm);
	3232	+ if (signalDOMEvent(cm, e)) return;
	3233	+ // IE does strange things with escape.
	3234	+ if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
	3235	+ var code = e.keyCode;
	3236	+ cm.display.shift = code == 16 || e.shiftKey;
	3237	+ var handled = handleKeyBinding(cm, e);
	3238	+ if (presto) {
	3239	+ lastStoppedKey = handled ? code : null;
	3240	+ // Opera has no cut event... we try to at least catch the key combo
	3241	+ if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
	3242	+ cm.replaceSelection("", null, "cut");
	3243	+ }
	3244	+
	3245	+ // Turn mouse into crosshair when Alt is held on Mac.
	3246	+ if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
	3247	+ showCrossHair(cm);
	3248	+ }
	3249	+
	3250	+ function showCrossHair(cm) {
	3251	+ var lineDiv = cm.display.lineDiv;
	3252	+ addClass(lineDiv, "CodeMirror-crosshair");
	3253	+
	3254	+ function up(e) {
	3255	+ if (e.keyCode == 18 || !e.altKey) {
	3256	+ rmClass(lineDiv, "CodeMirror-crosshair");
	3257	+ off(document, "keyup", up);
	3258	+ off(document, "mouseover", up);
	3259	+ }
	3260	+ }
	3261	+ on(document, "keyup", up);
	3262	+ on(document, "mouseover", up);
	3263	+ }
	3264	+
	3265	+ function onKeyUp(e) {
	3266	+ if (e.keyCode == 16) this.doc.sel.shift = false;
	3267	+ signalDOMEvent(this, e);
	3268	+ }
	3269	+
	3270	+ function onKeyPress(e) {
	3271	+ var cm = this;
	3272	+ if (signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
	3273	+ var keyCode = e.keyCode, charCode = e.charCode;
	3274	+ if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
	3275	+ if (((presto && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return;
	3276	+ var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
	3277	+ if (handleCharBinding(cm, e, ch)) return;
	3278	+ if (ie && ie_version >= 9) cm.display.inputHasSelection = null;
	3279	+ fastPoll(cm);
	3280	+ }
	3281	+
	3282	+ // FOCUS/BLUR EVENTS
	3283	+
	3284	+ function onFocus(cm) {
	3285	+ if (cm.options.readOnly == "nocursor") return;
	3286	+ if (!cm.state.focused) {
	3287	+ signal(cm, "focus", cm);
	3288	+ cm.state.focused = true;
	3289	+ addClass(cm.display.wrapper, "CodeMirror-focused");
	3290	+ // The prevInput test prevents this from firing when a context
	3291	+ // menu is closed (since the resetInput would kill the
	3292	+ // select-all detection hack)
	3293	+ if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
	3294	+ resetInput(cm);
	3295	+ if (webkit) setTimeout(bind(resetInput, cm, true), 0); // Issue #1730
	3296	+ }
	3297	+ }
	3298	+ slowPoll(cm);
	3299	+ restartBlink(cm);
	3300	+ }
	3301	+ function onBlur(cm) {
	3302	+ if (cm.state.focused) {
	3303	+ signal(cm, "blur", cm);
	3304	+ cm.state.focused = false;
	3305	+ rmClass(cm.display.wrapper, "CodeMirror-focused");
	3306	+ }
	3307	+ clearInterval(cm.display.blinker);
	3308	+ setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
	3309	+ }
	3310	+
	3311	+ // CONTEXT MENU HANDLING
	3312	+
	3313	+ // To make the context menu work, we need to briefly unhide the
	3314	+ // textarea (making it as unobtrusive as possible) to let the
	3315	+ // right-click take effect on it.
	3316	+ function onContextMenu(cm, e) {
	3317	+ if (signalDOMEvent(cm, e, "contextmenu")) return;
	3318	+ var display = cm.display;
	3319	+ if (eventInWidget(display, e) || contextMenuInGutter(cm, e)) return;
	3320	+
	3321	+ var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
	3322	+ if (!pos || presto) return; // Opera is difficult.
	3323	+
	3324	+ // Reset the current text selection only if the click is done outside of the selection
	3325	+ // and 'resetSelectionOnContextMenu' option is true.
	3326	+ var reset = cm.options.resetSelectionOnContextMenu;
	3327	+ if (reset && cm.doc.sel.contains(pos) == -1)
	3328	+ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
	3329	+
	3330	+ var oldCSS = display.input.style.cssText;
	3331	+ display.inputDiv.style.position = "absolute";
	3332	+ display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
	3333	+ "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " +
	3334	+ (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
	3335	+ "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
	3336	+ if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
	3337	+ focusInput(cm);
	3338	+ if (webkit) window.scrollTo(null, oldScrollY);
	3339	+ resetInput(cm);
	3340	+ // Adds "Select all" to context menu in FF
	3341	+ if (!cm.somethingSelected()) display.input.value = display.prevInput = " ";
	3342	+ display.selForContextMenu = cm.doc.sel;
	3343	+ clearTimeout(display.detectingSelectAll);
	3344	+
	3345	+ // Select-all will be greyed out if there's nothing to select, so
	3346	+ // this adds a zero-width space so that we can later check whether
	3347	+ // it got selected.
	3348	+ function prepareSelectAllHack() {
	3349	+ if (display.input.selectionStart != null) {
	3350	+ var selected = cm.somethingSelected();
	3351	+ var extval = display.input.value = "\u200b" + (selected ? display.input.value : "");
	3352	+ display.prevInput = selected ? "" : "\u200b";
	3353	+ display.input.selectionStart = 1; display.input.selectionEnd = extval.length;
	3354	+ // Re-set this, in case some other handler touched the
	3355	+ // selection in the meantime.
	3356	+ display.selForContextMenu = cm.doc.sel;
	3357	+ }
	3358	+ }
	3359	+ function rehide() {
	3360	+ display.inputDiv.style.position = "relative";
	3361	+ display.input.style.cssText = oldCSS;
	3362	+ if (ie && ie_version < 9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos;
	3363	+ slowPoll(cm);
	3364	+
	3365	+ // Try to detect the user choosing select-all
	3366	+ if (display.input.selectionStart != null) {
	3367	+ if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
	3368	+ var i = 0, poll = function() {
	3369	+ if (display.selForContextMenu == cm.doc.sel && display.input.selectionStart == 0)
	3370	+ operation(cm, commands.selectAll)(cm);
	3371	+ else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
	3372	+ else resetInput(cm);
	3373	+ };
	3374	+ display.detectingSelectAll = setTimeout(poll, 200);
	3375	+ }
	3376	+ }
	3377	+
	3378	+ if (ie && ie_version >= 9) prepareSelectAllHack();
	3379	+ if (captureRightClick) {
	3380	+ e_stop(e);
	3381	+ var mouseup = function() {
	3382	+ off(window, "mouseup", mouseup);
	3383	+ setTimeout(rehide, 20);
	3384	+ };
	3385	+ on(window, "mouseup", mouseup);
	3386	+ } else {
	3387	+ setTimeout(rehide, 50);
	3388	+ }
	3389	+ }
	3390	+
	3391	+ function contextMenuInGutter(cm, e) {
	3392	+ if (!hasHandler(cm, "gutterContextMenu")) return false;
	3393	+ return gutterEvent(cm, e, "gutterContextMenu", false, signal);
	3394	+ }
	3395	+
	3396	+ // UPDATING
	3397	+
	3398	+ // Compute the position of the end of a change (its 'to' property
	3399	+ // refers to the pre-change end).
	3400	+ var changeEnd = CodeMirror.changeEnd = function(change) {
	3401	+ if (!change.text) return change.to;
	3402	+ return Pos(change.from.line + change.text.length - 1,
	3403	+ lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
	3404	+ };
	3405	+
	3406	+ // Adjust a position to refer to the post-change position of the
	3407	+ // same text, or the end of the change if the change covers it.
	3408	+ function adjustForChange(pos, change) {
	3409	+ if (cmp(pos, change.from) < 0) return pos;
	3410	+ if (cmp(pos, change.to) <= 0) return changeEnd(change);
	3411	+
	3412	+ var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
	3413	+ if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
	3414	+ return Pos(line, ch);
	3415	+ }
	3416	+
	3417	+ function computeSelAfterChange(doc, change) {
	3418	+ var out = [];
	3419	+ for (var i = 0; i < doc.sel.ranges.length; i++) {
	3420	+ var range = doc.sel.ranges[i];
	3421	+ out.push(new Range(adjustForChange(range.anchor, change),
	3422	+ adjustForChange(range.head, change)));
	3423	+ }
	3424	+ return normalizeSelection(out, doc.sel.primIndex);
	3425	+ }
	3426	+
	3427	+ function offsetPos(pos, old, nw) {
	3428	+ if (pos.line == old.line)
	3429	+ return Pos(nw.line, pos.ch - old.ch + nw.ch);
	3430	+ else
	3431	+ return Pos(nw.line + (pos.line - old.line), pos.ch);
	3432	+ }
	3433	+
	3434	+ // Used by replaceSelections to allow moving the selection to the
	3435	+ // start or around the replaced test. Hint may be "start" or "around".
	3436	+ function computeReplacedSel(doc, changes, hint) {
	3437	+ var out = [];
	3438	+ var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
	3439	+ for (var i = 0; i < changes.length; i++) {
	3440	+ var change = changes[i];
	3441	+ var from = offsetPos(change.from, oldPrev, newPrev);
	3442	+ var to = offsetPos(changeEnd(change), oldPrev, newPrev);
	3443	+ oldPrev = change.to;
	3444	+ newPrev = to;
	3445	+ if (hint == "around") {
	3446	+ var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
	3447	+ out[i] = new Range(inv ? to : from, inv ? from : to);
	3448	+ } else {
	3449	+ out[i] = new Range(from, from);
	3450	+ }
	3451	+ }
	3452	+ return new Selection(out, doc.sel.primIndex);
	3453	+ }
	3454	+
	3455	+ // Allow "beforeChange" event handlers to influence a change
	3456	+ function filterChange(doc, change, update) {
	3457	+ var obj = {
	3458	+ canceled: false,
	3459	+ from: change.from,
	3460	+ to: change.to,
	3461	+ text: change.text,
	3462	+ origin: change.origin,
	3463	+ cancel: function() { this.canceled = true; }
	3464	+ };
	3465	+ if (update) obj.update = function(from, to, text, origin) {
	3466	+ if (from) this.from = clipPos(doc, from);
	3467	+ if (to) this.to = clipPos(doc, to);
	3468	+ if (text) this.text = text;
	3469	+ if (origin !== undefined) this.origin = origin;
	3470	+ };
	3471	+ signal(doc, "beforeChange", doc, obj);
	3472	+ if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
	3473	+
	3474	+ if (obj.canceled) return null;
	3475	+ return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
	3476	+ }
	3477	+
	3478	+ // Apply a change to a document, and add it to the document's
	3479	+ // history, and propagating it to all linked documents.
	3480	+ function makeChange(doc, change, ignoreReadOnly) {
	3481	+ if (doc.cm) {
	3482	+ if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
	3483	+ if (doc.cm.state.suppressEdits) return;
	3484	+ }
	3485	+
	3486	+ if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
	3487	+ change = filterChange(doc, change, true);
	3488	+ if (!change) return;
	3489	+ }
	3490	+
	3491	+ // Possibly split or suppress the update based on the presence
	3492	+ // of read-only spans in its range.
	3493	+ var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
	3494	+ if (split) {
	3495	+ for (var i = split.length - 1; i >= 0; --i)
	3496	+ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
	3497	+ } else {
	3498	+ makeChangeInner(doc, change);
	3499	+ }
	3500	+ }
	3501	+
	3502	+ function makeChangeInner(doc, change) {
	3503	+ if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
	3504	+ var selAfter = computeSelAfterChange(doc, change);
	3505	+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
	3506	+
	3507	+ makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
	3508	+ var rebased = [];
	3509	+
	3510	+ linkedDocs(doc, function(doc, sharedHist) {
	3511	+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
	3512	+ rebaseHist(doc.history, change);
	3513	+ rebased.push(doc.history);
	3514	+ }
	3515	+ makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
	3516	+ });
	3517	+ }
	3518	+
	3519	+ // Revert a change stored in a document's history.
	3520	+ function makeChangeFromHistory(doc, type, allowSelectionOnly) {
	3521	+ if (doc.cm && doc.cm.state.suppressEdits) return;
	3522	+
	3523	+ var hist = doc.history, event, selAfter = doc.sel;
	3524	+ var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
	3525	+
	3526	+ // Verify that there is a useable event (so that ctrl-z won't
	3527	+ // needlessly clear selection events)
	3528	+ for (var i = 0; i < source.length; i++) {
	3529	+ event = source[i];
	3530	+ if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
	3531	+ break;
	3532	+ }
	3533	+ if (i == source.length) return;
	3534	+ hist.lastOrigin = hist.lastSelOrigin = null;
	3535	+
	3536	+ for (;;) {
	3537	+ event = source.pop();
	3538	+ if (event.ranges) {
	3539	+ pushSelectionToHistory(event, dest);
	3540	+ if (allowSelectionOnly && !event.equals(doc.sel)) {
	3541	+ setSelection(doc, event, {clearRedo: false});
	3542	+ return;
	3543	+ }
	3544	+ selAfter = event;
	3545	+ }
	3546	+ else break;
	3547	+ }
	3548	+
	3549	+ // Build up a reverse change object to add to the opposite history
	3550	+ // stack (redo when undoing, and vice versa).
	3551	+ var antiChanges = [];
	3552	+ pushSelectionToHistory(selAfter, dest);
	3553	+ dest.push({changes: antiChanges, generation: hist.generation});
	3554	+ hist.generation = event.generation || ++hist.maxGeneration;
	3555	+
	3556	+ var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
	3557	+
	3558	+ for (var i = event.changes.length - 1; i >= 0; --i) {
	3559	+ var change = event.changes[i];
	3560	+ change.origin = type;
	3561	+ if (filter && !filterChange(doc, change, false)) {
	3562	+ source.length = 0;
	3563	+ return;
	3564	+ }
	3565	+
	3566	+ antiChanges.push(historyChangeFromChange(doc, change));
	3567	+
	3568	+ var after = i ? computeSelAfterChange(doc, change) : lst(source);
	3569	+ makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
	3570	+ if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
	3571	+ var rebased = [];
	3572	+
	3573	+ // Propagate to the linked documents
	3574	+ linkedDocs(doc, function(doc, sharedHist) {
	3575	+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
	3576	+ rebaseHist(doc.history, change);
	3577	+ rebased.push(doc.history);
	3578	+ }
	3579	+ makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
	3580	+ });
	3581	+ }
	3582	+ }
	3583	+
	3584	+ // Sub-views need their line numbers shifted when text is added
	3585	+ // above or below them in the parent document.
	3586	+ function shiftDoc(doc, distance) {
	3587	+ if (distance == 0) return;
	3588	+ doc.first += distance;
	3589	+ doc.sel = new Selection(map(doc.sel.ranges, function(range) {
	3590	+ return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
	3591	+ Pos(range.head.line + distance, range.head.ch));
	3592	+ }), doc.sel.primIndex);
	3593	+ if (doc.cm) {
	3594	+ regChange(doc.cm, doc.first, doc.first - distance, distance);
	3595	+ for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
	3596	+ regLineChange(doc.cm, l, "gutter");
	3597	+ }
	3598	+ }
	3599	+
	3600	+ // More lower-level change function, handling only a single document
	3601	+ // (not linked ones).
	3602	+ function makeChangeSingleDoc(doc, change, selAfter, spans) {
	3603	+ if (doc.cm && !doc.cm.curOp)
	3604	+ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
	3605	+
	3606	+ if (change.to.line < doc.first) {
	3607	+ shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
	3608	+ return;
	3609	+ }
	3610	+ if (change.from.line > doc.lastLine()) return;
	3611	+
	3612	+ // Clip the change to the size of this doc
	3613	+ if (change.from.line < doc.first) {
	3614	+ var shift = change.text.length - 1 - (doc.first - change.from.line);
	3615	+ shiftDoc(doc, shift);
	3616	+ change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
	3617	+ text: [lst(change.text)], origin: change.origin};
	3618	+ }
	3619	+ var last = doc.lastLine();
	3620	+ if (change.to.line > last) {
	3621	+ change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
	3622	+ text: [change.text[0]], origin: change.origin};
	3623	+ }
	3624	+
	3625	+ change.removed = getBetween(doc, change.from, change.to);
	3626	+
	3627	+ if (!selAfter) selAfter = computeSelAfterChange(doc, change);
	3628	+ if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
	3629	+ else updateDoc(doc, change, spans);
	3630	+ setSelectionNoUndo(doc, selAfter, sel_dontScroll);
	3631	+ }
	3632	+
	3633	+ // Handle the interaction of a change to a document with the editor
	3634	+ // that this document is part of.
	3635	+ function makeChangeSingleDocInEditor(cm, change, spans) {
	3636	+ var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
	3637	+
	3638	+ var recomputeMaxLength = false, checkWidthStart = from.line;
	3639	+ if (!cm.options.lineWrapping) {
	3640	+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
	3641	+ doc.iter(checkWidthStart, to.line + 1, function(line) {
	3642	+ if (line == display.maxLine) {
	3643	+ recomputeMaxLength = true;
	3644	+ return true;
	3645	+ }
	3646	+ });
	3647	+ }
	3648	+
	3649	+ if (doc.sel.contains(change.from, change.to) > -1)
	3650	+ signalCursorActivity(cm);
	3651	+
	3652	+ updateDoc(doc, change, spans, estimateHeight(cm));
	3653	+
	3654	+ if (!cm.options.lineWrapping) {
	3655	+ doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
	3656	+ var len = lineLength(line);
	3657	+ if (len > display.maxLineLength) {
	3658	+ display.maxLine = line;
	3659	+ display.maxLineLength = len;
	3660	+ display.maxLineChanged = true;
	3661	+ recomputeMaxLength = false;
	3662	+ }
	3663	+ });
	3664	+ if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
	3665	+ }
	3666	+
	3667	+ // Adjust frontier, schedule worker
	3668	+ doc.frontier = Math.min(doc.frontier, from.line);
	3669	+ startWorker(cm, 400);
	3670	+
	3671	+ var lendiff = change.text.length - (to.line - from.line) - 1;
	3672	+ // Remember that these lines changed, for updating the display
	3673	+ if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
	3674	+ regLineChange(cm, from.line, "text");
	3675	+ else
	3676	+ regChange(cm, from.line, to.line + 1, lendiff);
	3677	+
	3678	+ var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
	3679	+ if (changeHandler || changesHandler) {
	3680	+ var obj = {
	3681	+ from: from, to: to,
	3682	+ text: change.text,
	3683	+ removed: change.removed,
	3684	+ origin: change.origin
	3685	+ };
	3686	+ if (changeHandler) signalLater(cm, "change", cm, obj);
	3687	+ if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
	3688	+ }
	3689	+ cm.display.selForContextMenu = null;
	3690	+ }
	3691	+
	3692	+ function replaceRange(doc, code, from, to, origin) {
	3693	+ if (!to) to = from;
	3694	+ if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
	3695	+ if (typeof code == "string") code = splitLines(code);
	3696	+ makeChange(doc, {from: from, to: to, text: code, origin: origin});
	3697	+ }
	3698	+
	3699	+ // SCROLLING THINGS INTO VIEW
	3700	+
	3701	+ // If an editor sits on the top or bottom of the window, partially
	3702	+ // scrolled out of view, this ensures that the cursor is visible.
	3703	+ function maybeScrollWindow(cm, coords) {
	3704	+ var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
	3705	+ if (coords.top + box.top < 0) doScroll = true;
	3706	+ else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
	3707	+ if (doScroll != null && !phantom) {
	3708	+ var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
	3709	+ (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
	3710	+ (coords.bottom - coords.top + scrollerCutOff) + "px; left: " +
	3711	+ coords.left + "px; width: 2px;");
	3712	+ cm.display.lineSpace.appendChild(scrollNode);
	3713	+ scrollNode.scrollIntoView(doScroll);
	3714	+ cm.display.lineSpace.removeChild(scrollNode);
	3715	+ }
	3716	+ }
	3717	+
	3718	+ // Scroll a given position into view (immediately), verifying that
	3719	+ // it actually became visible (as line heights are accurately
	3720	+ // measured, the position of something may 'drift' during drawing).
	3721	+ function scrollPosIntoView(cm, pos, end, margin) {
	3722	+ if (margin == null) margin = 0;
	3723	+ for (var limit = 0; limit < 5; limit++) {
	3724	+ var changed = false, coords = cursorCoords(cm, pos);
	3725	+ var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
	3726	+ var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
	3727	+ Math.min(coords.top, endCoords.top) - margin,
	3728	+ Math.max(coords.left, endCoords.left),
	3729	+ Math.max(coords.bottom, endCoords.bottom) + margin);
	3730	+ var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
	3731	+ if (scrollPos.scrollTop != null) {
	3732	+ setScrollTop(cm, scrollPos.scrollTop);
	3733	+ if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
	3734	+ }
	3735	+ if (scrollPos.scrollLeft != null) {
	3736	+ setScrollLeft(cm, scrollPos.scrollLeft);
	3737	+ if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
	3738	+ }
	3739	+ if (!changed) return coords;
	3740	+ }
	3741	+ }
	3742	+
	3743	+ // Scroll a given set of coordinates into view (immediately).
	3744	+ function scrollIntoView(cm, x1, y1, x2, y2) {
	3745	+ var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
	3746	+ if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
	3747	+ if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
	3748	+ }
	3749	+
	3750	+ // Calculate a new scroll position needed to scroll the given
	3751	+ // rectangle into view. Returns an object with scrollTop and
	3752	+ // scrollLeft properties. When these are undefined, the
	3753	+ // vertical/horizontal position does not need to be adjusted.
	3754	+ function calculateScrollPos(cm, x1, y1, x2, y2) {
	3755	+ var display = cm.display, snapMargin = textHeight(cm.display);
	3756	+ if (y1 < 0) y1 = 0;
	3757	+ var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
	3758	+ var screen = display.scroller.clientHeight - scrollerCutOff, result = {};
	3759	+ if (y2 - y1 > screen) y2 = y1 + screen;
	3760	+ var docBottom = cm.doc.height + paddingVert(display);
	3761	+ var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
	3762	+ if (y1 < screentop) {
	3763	+ result.scrollTop = atTop ? 0 : y1;
	3764	+ } else if (y2 > screentop + screen) {
	3765	+ var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
	3766	+ if (newTop != screentop) result.scrollTop = newTop;
	3767	+ }
	3768	+
	3769	+ var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
	3770	+ var screenw = display.scroller.clientWidth - scrollerCutOff - display.gutters.offsetWidth;
	3771	+ var tooWide = x2 - x1 > screenw;
	3772	+ if (tooWide) x2 = x1 + screenw;
	3773	+ if (x1 < 10)
	3774	+ result.scrollLeft = 0;
	3775	+ else if (x1 < screenleft)
	3776	+ result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
	3777	+ else if (x2 > screenw + screenleft - 3)
	3778	+ result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
	3779	+
	3780	+ return result;
	3781	+ }
	3782	+
	3783	+ // Store a relative adjustment to the scroll position in the current
	3784	+ // operation (to be applied when the operation finishes).
	3785	+ function addToScrollPos(cm, left, top) {
	3786	+ if (left != null || top != null) resolveScrollToPos(cm);
	3787	+ if (left != null)
	3788	+ cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
	3789	+ if (top != null)
	3790	+ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
	3791	+ }
	3792	+
	3793	+ // Make sure that at the end of the operation the current cursor is
	3794	+ // shown.
	3795	+ function ensureCursorVisible(cm) {
	3796	+ resolveScrollToPos(cm);
	3797	+ var cur = cm.getCursor(), from = cur, to = cur;
	3798	+ if (!cm.options.lineWrapping) {
	3799	+ from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
	3800	+ to = Pos(cur.line, cur.ch + 1);
	3801	+ }
	3802	+ cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
	3803	+ }
	3804	+
	3805	+ // When an operation has its scrollToPos property set, and another
	3806	+ // scroll action is applied before the end of the operation, this
	3807	+ // 'simulates' scrolling that position into view in a cheap way, so
	3808	+ // that the effect of intermediate scroll commands is not ignored.
	3809	+ function resolveScrollToPos(cm) {
	3810	+ var range = cm.curOp.scrollToPos;
	3811	+ if (range) {
	3812	+ cm.curOp.scrollToPos = null;
	3813	+ var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
	3814	+ var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
	3815	+ Math.min(from.top, to.top) - range.margin,
	3816	+ Math.max(from.right, to.right),
	3817	+ Math.max(from.bottom, to.bottom) + range.margin);
	3818	+ cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
	3819	+ }
	3820	+ }
	3821	+
	3822	+ // API UTILITIES
	3823	+
	3824	+ // Indent the given line. The how parameter can be "smart",
	3825	+ // "add"/null, "subtract", or "prev". When aggressive is false
	3826	+ // (typically set to true for forced single-line indents), empty
	3827	+ // lines are not indented, and places where the mode returns Pass
	3828	+ // are left alone.
	3829	+ function indentLine(cm, n, how, aggressive) {
	3830	+ var doc = cm.doc, state;
	3831	+ if (how == null) how = "add";
	3832	+ if (how == "smart") {
	3833	+ // Fall back to "prev" when the mode doesn't have an indentation
	3834	+ // method.
	3835	+ if (!doc.mode.indent) how = "prev";
	3836	+ else state = getStateBefore(cm, n);
	3837	+ }
	3838	+
	3839	+ var tabSize = cm.options.tabSize;
	3840	+ var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
	3841	+ if (line.stateAfter) line.stateAfter = null;
	3842	+ var curSpaceString = line.text.match(/^\s*/)[0], indentation;
	3843	+ if (!aggressive && !/\S/.test(line.text)) {
	3844	+ indentation = 0;
	3845	+ how = "not";
	3846	+ } else if (how == "smart") {
	3847	+ indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
	3848	+ if (indentation == Pass || indentation > 150) {
	3849	+ if (!aggressive) return;
	3850	+ how = "prev";
	3851	+ }
	3852	+ }
	3853	+ if (how == "prev") {
	3854	+ if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
	3855	+ else indentation = 0;
	3856	+ } else if (how == "add") {
	3857	+ indentation = curSpace + cm.options.indentUnit;
	3858	+ } else if (how == "subtract") {
	3859	+ indentation = curSpace - cm.options.indentUnit;
	3860	+ } else if (typeof how == "number") {
	3861	+ indentation = curSpace + how;
	3862	+ }
	3863	+ indentation = Math.max(0, indentation);
	3864	+
	3865	+ var indentString = "", pos = 0;
	3866	+ if (cm.options.indentWithTabs)
	3867	+ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
	3868	+ if (pos < indentation) indentString += spaceStr(indentation - pos);
	3869	+
	3870	+ if (indentString != curSpaceString) {
	3871	+ replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
	3872	+ } else {
	3873	+ // Ensure that, if the cursor was in the whitespace at the start
	3874	+ // of the line, it is moved to the end of that space.
	3875	+ for (var i = 0; i < doc.sel.ranges.length; i++) {
	3876	+ var range = doc.sel.ranges[i];
	3877	+ if (range.head.line == n && range.head.ch < curSpaceString.length) {
	3878	+ var pos = Pos(n, curSpaceString.length);
	3879	+ replaceOneSelection(doc, i, new Range(pos, pos));
	3880	+ break;
	3881	+ }
	3882	+ }
	3883	+ }
	3884	+ line.stateAfter = null;
	3885	+ }
	3886	+
	3887	+ // Utility for applying a change to a line by handle or number,
	3888	+ // returning the number and optionally registering the line as
	3889	+ // changed.
	3890	+ function changeLine(doc, handle, changeType, op) {
	3891	+ var no = handle, line = handle;
	3892	+ if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
	3893	+ else no = lineNo(handle);
	3894	+ if (no == null) return null;
	3895	+ if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
	3896	+ return line;
	3897	+ }
	3898	+
	3899	+ // Helper for deleting text near the selection(s), used to implement
	3900	+ // backspace, delete, and similar functionality.
	3901	+ function deleteNearSelection(cm, compute) {
	3902	+ var ranges = cm.doc.sel.ranges, kill = [];
	3903	+ // Build up a set of ranges to kill first, merging overlapping
	3904	+ // ranges.
	3905	+ for (var i = 0; i < ranges.length; i++) {
	3906	+ var toKill = compute(ranges[i]);
	3907	+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
	3908	+ var replaced = kill.pop();
	3909	+ if (cmp(replaced.from, toKill.from) < 0) {
	3910	+ toKill.from = replaced.from;
	3911	+ break;
	3912	+ }
	3913	+ }
	3914	+ kill.push(toKill);
	3915	+ }
	3916	+ // Next, remove those actual ranges.
	3917	+ runInOp(cm, function() {
	3918	+ for (var i = kill.length - 1; i >= 0; i--)
	3919	+ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
	3920	+ ensureCursorVisible(cm);
	3921	+ });
	3922	+ }
	3923	+
	3924	+ // Used for horizontal relative motion. Dir is -1 or 1 (left or
	3925	+ // right), unit can be "char", "column" (like char, but doesn't
	3926	+ // cross line boundaries), "word" (across next word), or "group" (to
	3927	+ // the start of next group of word or non-word-non-whitespace
	3928	+ // chars). The visually param controls whether, in right-to-left
	3929	+ // text, direction 1 means to move towards the next index in the
	3930	+ // string, or towards the character to the right of the current
	3931	+ // position. The resulting position will have a hitSide=true
	3932	+ // property if it reached the end of the document.
	3933	+ function findPosH(doc, pos, dir, unit, visually) {
	3934	+ var line = pos.line, ch = pos.ch, origDir = dir;
	3935	+ var lineObj = getLine(doc, line);
	3936	+ var possible = true;
	3937	+ function findNextLine() {
	3938	+ var l = line + dir;
	3939	+ if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
	3940	+ line = l;
	3941	+ return lineObj = getLine(doc, l);
	3942	+ }
	3943	+ function moveOnce(boundToLine) {
	3944	+ var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
	3945	+ if (next == null) {
	3946	+ if (!boundToLine && findNextLine()) {
	3947	+ if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
	3948	+ else ch = dir < 0 ? lineObj.text.length : 0;
	3949	+ } else return (possible = false);
	3950	+ } else ch = next;
	3951	+ return true;
	3952	+ }
	3953	+
	3954	+ if (unit == "char") moveOnce();
	3955	+ else if (unit == "column") moveOnce(true);
	3956	+ else if (unit == "word" || unit == "group") {
	3957	+ var sawType = null, group = unit == "group";
	3958	+ var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
	3959	+ for (var first = true;; first = false) {
	3960	+ if (dir < 0 && !moveOnce(!first)) break;
	3961	+ var cur = lineObj.text.charAt(ch) || "\n";
	3962	+ var type = isWordChar(cur, helper) ? "w"
	3963	+ : group && cur == "\n" ? "n"
	3964	+ : !group || /\s/.test(cur) ? null
	3965	+ : "p";
	3966	+ if (group && !first && !type) type = "s";
	3967	+ if (sawType && sawType != type) {
	3968	+ if (dir < 0) {dir = 1; moveOnce();}
	3969	+ break;
	3970	+ }
	3971	+
	3972	+ if (type) sawType = type;
	3973	+ if (dir > 0 && !moveOnce(!first)) break;
	3974	+ }
	3975	+ }
	3976	+ var result = skipAtomic(doc, Pos(line, ch), origDir, true);
	3977	+ if (!possible) result.hitSide = true;
	3978	+ return result;
	3979	+ }
	3980	+
	3981	+ // For relative vertical movement. Dir may be -1 or 1. Unit can be
	3982	+ // "page" or "line". The resulting position will have a hitSide=true
	3983	+ // property if it reached the end of the document.
	3984	+ function findPosV(cm, pos, dir, unit) {
	3985	+ var doc = cm.doc, x = pos.left, y;
	3986	+ if (unit == "page") {
	3987	+ var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
	3988	+ y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
	3989	+ } else if (unit == "line") {
	3990	+ y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
	3991	+ }
	3992	+ for (;;) {
	3993	+ var target = coordsChar(cm, x, y);
	3994	+ if (!target.outside) break;
	3995	+ if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
	3996	+ y += dir * 5;
	3997	+ }
	3998	+ return target;
	3999	+ }
	4000	+
	4001	+ // EDITOR METHODS
	4002	+
	4003	+ // The publicly visible API. Note that methodOp(f) means
	4004	+ // 'wrap f in an operation, performed on its `this` parameter'.
	4005	+
	4006	+ // This is not the complete set of editor methods. Most of the
	4007	+ // methods defined on the Doc type are also injected into
	4008	+ // CodeMirror.prototype, for backwards compatibility and
	4009	+ // convenience.
	4010	+
	4011	+ CodeMirror.prototype = {
	4012	+ constructor: CodeMirror,
	4013	+ focus: function(){window.focus(); focusInput(this); fastPoll(this);},
	4014	+
	4015	+ setOption: function(option, value) {
	4016	+ var options = this.options, old = options[option];
	4017	+ if (options[option] == value && option != "mode") return;
	4018	+ options[option] = value;
	4019	+ if (optionHandlers.hasOwnProperty(option))
	4020	+ operation(this, optionHandlers[option])(this, value, old);
	4021	+ },
	4022	+
	4023	+ getOption: function(option) {return this.options[option];},
	4024	+ getDoc: function() {return this.doc;},
	4025	+
	4026	+ addKeyMap: function(map, bottom) {
	4027	+ this.state.keyMaps[bottom ? "push" : "unshift"](map);
	4028	+ },
	4029	+ removeKeyMap: function(map) {
	4030	+ var maps = this.state.keyMaps;
	4031	+ for (var i = 0; i < maps.length; ++i)
	4032	+ if (maps[i] == map || (typeof maps[i] != "string" && maps[i].name == map)) {
	4033	+ maps.splice(i, 1);
	4034	+ return true;
	4035	+ }
	4036	+ },
	4037	+
	4038	+ addOverlay: methodOp(function(spec, options) {
	4039	+ var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
	4040	+ if (mode.startState) throw new Error("Overlays may not be stateful.");
	4041	+ this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
	4042	+ this.state.modeGen++;
	4043	+ regChange(this);
	4044	+ }),
	4045	+ removeOverlay: methodOp(function(spec) {
	4046	+ var overlays = this.state.overlays;
	4047	+ for (var i = 0; i < overlays.length; ++i) {
	4048	+ var cur = overlays[i].modeSpec;
	4049	+ if (cur == spec || typeof spec == "string" && cur.name == spec) {
	4050	+ overlays.splice(i, 1);
	4051	+ this.state.modeGen++;
	4052	+ regChange(this);
	4053	+ return;
	4054	+ }
	4055	+ }
	4056	+ }),
	4057	+
	4058	+ indentLine: methodOp(function(n, dir, aggressive) {
	4059	+ if (typeof dir != "string" && typeof dir != "number") {
	4060	+ if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
	4061	+ else dir = dir ? "add" : "subtract";
	4062	+ }
	4063	+ if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
	4064	+ }),
	4065	+ indentSelection: methodOp(function(how) {
	4066	+ var ranges = this.doc.sel.ranges, end = -1;
	4067	+ for (var i = 0; i < ranges.length; i++) {
	4068	+ var range = ranges[i];
	4069	+ if (!range.empty()) {
	4070	+ var from = range.from(), to = range.to();
	4071	+ var start = Math.max(end, from.line);
	4072	+ end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
	4073	+ for (var j = start; j < end; ++j)
	4074	+ indentLine(this, j, how);
	4075	+ var newRanges = this.doc.sel.ranges;
	4076	+ if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
	4077	+ replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
	4078	+ } else if (range.head.line > end) {
	4079	+ indentLine(this, range.head.line, how, true);
	4080	+ end = range.head.line;
	4081	+ if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
	4082	+ }
	4083	+ }
	4084	+ }),
	4085	+
	4086	+ // Fetch the parser token for a given character. Useful for hacks
	4087	+ // that want to inspect the mode state (say, for completion).
	4088	+ getTokenAt: function(pos, precise) {
	4089	+ var doc = this.doc;
	4090	+ pos = clipPos(doc, pos);
	4091	+ var state = getStateBefore(this, pos.line, precise), mode = this.doc.mode;
	4092	+ var line = getLine(doc, pos.line);
	4093	+ var stream = new StringStream(line.text, this.options.tabSize);
	4094	+ while (stream.pos < pos.ch && !stream.eol()) {
	4095	+ stream.start = stream.pos;
	4096	+ var style = readToken(mode, stream, state);
	4097	+ }
	4098	+ return {start: stream.start,
	4099	+ end: stream.pos,
	4100	+ string: stream.current(),
	4101	+ type: style || null,
	4102	+ state: state};
	4103	+ },
	4104	+
	4105	+ getTokenTypeAt: function(pos) {
	4106	+ pos = clipPos(this.doc, pos);
	4107	+ var styles = getLineStyles(this, getLine(this.doc, pos.line));
	4108	+ var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
	4109	+ var type;
	4110	+ if (ch == 0) type = styles[2];
	4111	+ else for (;;) {
	4112	+ var mid = (before + after) >> 1;
	4113	+ if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
	4114	+ else if (styles[mid * 2 + 1] < ch) before = mid + 1;
	4115	+ else { type = styles[mid * 2 + 2]; break; }
	4116	+ }
	4117	+ var cut = type ? type.indexOf("cm-overlay ") : -1;
	4118	+ return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
	4119	+ },
	4120	+
	4121	+ getModeAt: function(pos) {
	4122	+ var mode = this.doc.mode;
	4123	+ if (!mode.innerMode) return mode;
	4124	+ return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
	4125	+ },
	4126	+
	4127	+ getHelper: function(pos, type) {
	4128	+ return this.getHelpers(pos, type)[0];
	4129	+ },
	4130	+
	4131	+ getHelpers: function(pos, type) {
	4132	+ var found = [];
	4133	+ if (!helpers.hasOwnProperty(type)) return helpers;
	4134	+ var help = helpers[type], mode = this.getModeAt(pos);
	4135	+ if (typeof mode[type] == "string") {
	4136	+ if (help[mode[type]]) found.push(help[mode[type]]);
	4137	+ } else if (mode[type]) {
	4138	+ for (var i = 0; i < mode[type].length; i++) {
	4139	+ var val = help[mode[type][i]];
	4140	+ if (val) found.push(val);
	4141	+ }
	4142	+ } else if (mode.helperType && help[mode.helperType]) {
	4143	+ found.push(help[mode.helperType]);
	4144	+ } else if (help[mode.name]) {
	4145	+ found.push(help[mode.name]);
	4146	+ }
	4147	+ for (var i = 0; i < help._global.length; i++) {
	4148	+ var cur = help._global[i];
	4149	+ if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
	4150	+ found.push(cur.val);
	4151	+ }
	4152	+ return found;
	4153	+ },
	4154	+
	4155	+ getStateAfter: function(line, precise) {
	4156	+ var doc = this.doc;
	4157	+ line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
	4158	+ return getStateBefore(this, line + 1, precise);
	4159	+ },
	4160	+
	4161	+ cursorCoords: function(start, mode) {
	4162	+ var pos, range = this.doc.sel.primary();
	4163	+ if (start == null) pos = range.head;
	4164	+ else if (typeof start == "object") pos = clipPos(this.doc, start);
	4165	+ else pos = start ? range.from() : range.to();
	4166	+ return cursorCoords(this, pos, mode || "page");
	4167	+ },
	4168	+
	4169	+ charCoords: function(pos, mode) {
	4170	+ return charCoords(this, clipPos(this.doc, pos), mode || "page");
	4171	+ },
	4172	+
	4173	+ coordsChar: function(coords, mode) {
	4174	+ coords = fromCoordSystem(this, coords, mode || "page");
	4175	+ return coordsChar(this, coords.left, coords.top);
	4176	+ },
	4177	+
	4178	+ lineAtHeight: function(height, mode) {
	4179	+ height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
	4180	+ return lineAtHeight(this.doc, height + this.display.viewOffset);
	4181	+ },
	4182	+ heightAtLine: function(line, mode) {
	4183	+ var end = false, last = this.doc.first + this.doc.size - 1;
	4184	+ if (line < this.doc.first) line = this.doc.first;
	4185	+ else if (line > last) { line = last; end = true; }
	4186	+ var lineObj = getLine(this.doc, line);
	4187	+ return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
	4188	+ (end ? this.doc.height - heightAtLine(lineObj) : 0);
	4189	+ },
	4190	+
	4191	+ defaultTextHeight: function() { return textHeight(this.display); },
	4192	+ defaultCharWidth: function() { return charWidth(this.display); },
	4193	+
	4194	+ setGutterMarker: methodOp(function(line, gutterID, value) {
	4195	+ return changeLine(this.doc, line, "gutter", function(line) {
	4196	+ var markers = line.gutterMarkers || (line.gutterMarkers = {});
	4197	+ markers[gutterID] = value;
	4198	+ if (!value && isEmpty(markers)) line.gutterMarkers = null;
	4199	+ return true;
	4200	+ });
	4201	+ }),
	4202	+
	4203	+ clearGutter: methodOp(function(gutterID) {
	4204	+ var cm = this, doc = cm.doc, i = doc.first;
	4205	+ doc.iter(function(line) {
	4206	+ if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
	4207	+ line.gutterMarkers[gutterID] = null;
	4208	+ regLineChange(cm, i, "gutter");
	4209	+ if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
	4210	+ }
	4211	+ ++i;
	4212	+ });
	4213	+ }),
	4214	+
	4215	+ addLineWidget: methodOp(function(handle, node, options) {
	4216	+ return addLineWidget(this, handle, node, options);
	4217	+ }),
	4218	+
	4219	+ removeLineWidget: function(widget) { widget.clear(); },
	4220	+
	4221	+ lineInfo: function(line) {
	4222	+ if (typeof line == "number") {
	4223	+ if (!isLine(this.doc, line)) return null;
	4224	+ var n = line;
	4225	+ line = getLine(this.doc, line);
	4226	+ if (!line) return null;
	4227	+ } else {
	4228	+ var n = lineNo(line);
	4229	+ if (n == null) return null;
	4230	+ }
	4231	+ return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
	4232	+ textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
	4233	+ widgets: line.widgets};
	4234	+ },
	4235	+
	4236	+ getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
	4237	+
	4238	+ addWidget: function(pos, node, scroll, vert, horiz) {
	4239	+ var display = this.display;
	4240	+ pos = cursorCoords(this, clipPos(this.doc, pos));
	4241	+ var top = pos.bottom, left = pos.left;
	4242	+ node.style.position = "absolute";
	4243	+ display.sizer.appendChild(node);
	4244	+ if (vert == "over") {
	4245	+ top = pos.top;
	4246	+ } else if (vert == "above" || vert == "near") {
	4247	+ var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
	4248	+ hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
	4249	+ // Default to positioning above (if specified and possible); otherwise default to positioning below
	4250	+ if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
	4251	+ top = pos.top - node.offsetHeight;
	4252	+ else if (pos.bottom + node.offsetHeight <= vspace)
	4253	+ top = pos.bottom;
	4254	+ if (left + node.offsetWidth > hspace)
	4255	+ left = hspace - node.offsetWidth;
	4256	+ }
	4257	+ node.style.top = top + "px";
	4258	+ node.style.left = node.style.right = "";
	4259	+ if (horiz == "right") {
	4260	+ left = display.sizer.clientWidth - node.offsetWidth;
	4261	+ node.style.right = "0px";
	4262	+ } else {
	4263	+ if (horiz == "left") left = 0;
	4264	+ else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
	4265	+ node.style.left = left + "px";
	4266	+ }
	4267	+ if (scroll)
	4268	+ scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
	4269	+ },
	4270	+
	4271	+ triggerOnKeyDown: methodOp(onKeyDown),
	4272	+ triggerOnKeyPress: methodOp(onKeyPress),
	4273	+ triggerOnKeyUp: onKeyUp,
	4274	+
	4275	+ execCommand: function(cmd) {
	4276	+ if (commands.hasOwnProperty(cmd))
	4277	+ return commands[cmd](this);
	4278	+ },
	4279	+
	4280	+ findPosH: function(from, amount, unit, visually) {
	4281	+ var dir = 1;
	4282	+ if (amount < 0) { dir = -1; amount = -amount; }
	4283	+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
	4284	+ cur = findPosH(this.doc, cur, dir, unit, visually);
	4285	+ if (cur.hitSide) break;
	4286	+ }
	4287	+ return cur;
	4288	+ },
	4289	+
	4290	+ moveH: methodOp(function(dir, unit) {
	4291	+ var cm = this;
	4292	+ cm.extendSelectionsBy(function(range) {
	4293	+ if (cm.display.shift || cm.doc.extend || range.empty())
	4294	+ return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
	4295	+ else
	4296	+ return dir < 0 ? range.from() : range.to();
	4297	+ }, sel_move);
	4298	+ }),
	4299	+
	4300	+ deleteH: methodOp(function(dir, unit) {
	4301	+ var sel = this.doc.sel, doc = this.doc;
	4302	+ if (sel.somethingSelected())
	4303	+ doc.replaceSelection("", null, "+delete");
	4304	+ else
	4305	+ deleteNearSelection(this, function(range) {
	4306	+ var other = findPosH(doc, range.head, dir, unit, false);
	4307	+ return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
	4308	+ });
	4309	+ }),
	4310	+
	4311	+ findPosV: function(from, amount, unit, goalColumn) {
	4312	+ var dir = 1, x = goalColumn;
	4313	+ if (amount < 0) { dir = -1; amount = -amount; }
	4314	+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
	4315	+ var coords = cursorCoords(this, cur, "div");
	4316	+ if (x == null) x = coords.left;
	4317	+ else coords.left = x;
	4318	+ cur = findPosV(this, coords, dir, unit);
	4319	+ if (cur.hitSide) break;
	4320	+ }
	4321	+ return cur;
	4322	+ },
	4323	+
	4324	+ moveV: methodOp(function(dir, unit) {
	4325	+ var cm = this, doc = this.doc, goals = [];
	4326	+ var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
	4327	+ doc.extendSelectionsBy(function(range) {
	4328	+ if (collapse)
	4329	+ return dir < 0 ? range.from() : range.to();
	4330	+ var headPos = cursorCoords(cm, range.head, "div");
	4331	+ if (range.goalColumn != null) headPos.left = range.goalColumn;
	4332	+ goals.push(headPos.left);
	4333	+ var pos = findPosV(cm, headPos, dir, unit);
	4334	+ if (unit == "page" && range == doc.sel.primary())
	4335	+ addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
	4336	+ return pos;
	4337	+ }, sel_move);
	4338	+ if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
	4339	+ doc.sel.ranges[i].goalColumn = goals[i];
	4340	+ }),
	4341	+
	4342	+ // Find the word at the given position (as returned by coordsChar).
	4343	+ findWordAt: function(pos) {
	4344	+ var doc = this.doc, line = getLine(doc, pos.line).text;
	4345	+ var start = pos.ch, end = pos.ch;
	4346	+ if (line) {
	4347	+ var helper = this.getHelper(pos, "wordChars");
	4348	+ if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
	4349	+ var startChar = line.charAt(start);
	4350	+ var check = isWordChar(startChar, helper)
	4351	+ ? function(ch) { return isWordChar(ch, helper); }
	4352	+ : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
	4353	+ : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
	4354	+ while (start > 0 && check(line.charAt(start - 1))) --start;
	4355	+ while (end < line.length && check(line.charAt(end))) ++end;
	4356	+ }
	4357	+ return new Range(Pos(pos.line, start), Pos(pos.line, end));
	4358	+ },
	4359	+
	4360	+ toggleOverwrite: function(value) {
	4361	+ if (value != null && value == this.state.overwrite) return;
	4362	+ if (this.state.overwrite = !this.state.overwrite)
	4363	+ addClass(this.display.cursorDiv, "CodeMirror-overwrite");
	4364	+ else
	4365	+ rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
	4366	+
	4367	+ signal(this, "overwriteToggle", this, this.state.overwrite);
	4368	+ },
	4369	+ hasFocus: function() { return activeElt() == this.display.input; },
	4370	+
	4371	+ scrollTo: methodOp(function(x, y) {
	4372	+ if (x != null || y != null) resolveScrollToPos(this);
	4373	+ if (x != null) this.curOp.scrollLeft = x;
	4374	+ if (y != null) this.curOp.scrollTop = y;
	4375	+ }),
	4376	+ getScrollInfo: function() {
	4377	+ var scroller = this.display.scroller, co = scrollerCutOff;
	4378	+ return {left: scroller.scrollLeft, top: scroller.scrollTop,
	4379	+ height: scroller.scrollHeight - co, width: scroller.scrollWidth - co,
	4380	+ clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co};
	4381	+ },
	4382	+
	4383	+ scrollIntoView: methodOp(function(range, margin) {
	4384	+ if (range == null) {
	4385	+ range = {from: this.doc.sel.primary().head, to: null};
	4386	+ if (margin == null) margin = this.options.cursorScrollMargin;
	4387	+ } else if (typeof range == "number") {
	4388	+ range = {from: Pos(range, 0), to: null};
	4389	+ } else if (range.from == null) {
	4390	+ range = {from: range, to: null};
	4391	+ }
	4392	+ if (!range.to) range.to = range.from;
	4393	+ range.margin = margin || 0;
	4394	+
	4395	+ if (range.from.line != null) {
	4396	+ resolveScrollToPos(this);
	4397	+ this.curOp.scrollToPos = range;
	4398	+ } else {
	4399	+ var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
	4400	+ Math.min(range.from.top, range.to.top) - range.margin,
	4401	+ Math.max(range.from.right, range.to.right),
	4402	+ Math.max(range.from.bottom, range.to.bottom) + range.margin);
	4403	+ this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
	4404	+ }
	4405	+ }),
	4406	+
	4407	+ setSize: methodOp(function(width, height) {
	4408	+ var cm = this;
	4409	+ function interpret(val) {
	4410	+ return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
	4411	+ }
	4412	+ if (width != null) cm.display.wrapper.style.width = interpret(width);
	4413	+ if (height != null) cm.display.wrapper.style.height = interpret(height);
	4414	+ if (cm.options.lineWrapping) clearLineMeasurementCache(this);
	4415	+ var lineNo = cm.display.viewFrom;
	4416	+ cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
	4417	+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
	4418	+ if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
	4419	+ ++lineNo;
	4420	+ });
	4421	+ cm.curOp.forceUpdate = true;
	4422	+ signal(cm, "refresh", this);
	4423	+ }),
	4424	+
	4425	+ operation: function(f){return runInOp(this, f);},
	4426	+
	4427	+ refresh: methodOp(function() {
	4428	+ var oldHeight = this.display.cachedTextHeight;
	4429	+ regChange(this);
	4430	+ this.curOp.forceUpdate = true;
	4431	+ clearCaches(this);
	4432	+ this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
	4433	+ updateGutterSpace(this);
	4434	+ if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
	4435	+ estimateLineHeights(this);
	4436	+ signal(this, "refresh", this);
	4437	+ }),
	4438	+
	4439	+ swapDoc: methodOp(function(doc) {
	4440	+ var old = this.doc;
	4441	+ old.cm = null;
	4442	+ attachDoc(this, doc);
	4443	+ clearCaches(this);
	4444	+ resetInput(this);
	4445	+ this.scrollTo(doc.scrollLeft, doc.scrollTop);
	4446	+ this.curOp.forceScroll = true;
	4447	+ signalLater(this, "swapDoc", this, old);
	4448	+ return old;
	4449	+ }),
	4450	+
	4451	+ getInputField: function(){return this.display.input;},
	4452	+ getWrapperElement: function(){return this.display.wrapper;},
	4453	+ getScrollerElement: function(){return this.display.scroller;},
	4454	+ getGutterElement: function(){return this.display.gutters;}
	4455	+ };
	4456	+ eventMixin(CodeMirror);
	4457	+
	4458	+ // OPTION DEFAULTS
	4459	+
	4460	+ // The default configuration options.
	4461	+ var defaults = CodeMirror.defaults = {};
	4462	+ // Functions to run when options are changed.
	4463	+ var optionHandlers = CodeMirror.optionHandlers = {};
	4464	+
	4465	+ function option(name, deflt, handle, notOnInit) {
	4466	+ CodeMirror.defaults[name] = deflt;
	4467	+ if (handle) optionHandlers[name] =
	4468	+ notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
	4469	+ }
	4470	+
	4471	+ // Passed to option handlers when there is no old value.
	4472	+ var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
	4473	+
	4474	+ // These two are, on init, called from the constructor because they
	4475	+ // have to be initialized before the editor can start at all.
	4476	+ option("value", "", function(cm, val) {
	4477	+ cm.setValue(val);
	4478	+ }, true);
	4479	+ option("mode", null, function(cm, val) {
	4480	+ cm.doc.modeOption = val;
	4481	+ loadMode(cm);
	4482	+ }, true);
	4483	+
	4484	+ option("indentUnit", 2, loadMode, true);
	4485	+ option("indentWithTabs", false);
	4486	+ option("smartIndent", true);
	4487	+ option("tabSize", 4, function(cm) {
	4488	+ resetModeState(cm);
	4489	+ clearCaches(cm);
	4490	+ regChange(cm);
	4491	+ }, true);
	4492	+ option("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val) {
	4493	+ cm.options.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
	4494	+ cm.refresh();
	4495	+ }, true);
	4496	+ option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
	4497	+ option("electricChars", true);
	4498	+ option("rtlMoveVisually", !windows);
	4499	+ option("wholeLineUpdateBefore", true);
	4500	+
	4501	+ option("theme", "default", function(cm) {
	4502	+ themeChanged(cm);
	4503	+ guttersChanged(cm);
	4504	+ }, true);
	4505	+ option("keyMap", "default", keyMapChanged);
	4506	+ option("extraKeys", null);
	4507	+
	4508	+ option("lineWrapping", false, wrappingChanged, true);
	4509	+ option("gutters", [], function(cm) {
	4510	+ setGuttersForLineNumbers(cm.options);
	4511	+ guttersChanged(cm);
	4512	+ }, true);
	4513	+ option("fixedGutter", true, function(cm, val) {
	4514	+ cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
	4515	+ cm.refresh();
	4516	+ }, true);
	4517	+ option("coverGutterNextToScrollbar", false, updateScrollbars, true);
	4518	+ option("lineNumbers", false, function(cm) {
	4519	+ setGuttersForLineNumbers(cm.options);
	4520	+ guttersChanged(cm);
	4521	+ }, true);
	4522	+ option("firstLineNumber", 1, guttersChanged, true);
	4523	+ option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
	4524	+ option("showCursorWhenSelecting", false, updateSelection, true);
	4525	+
	4526	+ option("resetSelectionOnContextMenu", true);
	4527	+
	4528	+ option("readOnly", false, function(cm, val) {
	4529	+ if (val == "nocursor") {
	4530	+ onBlur(cm);
	4531	+ cm.display.input.blur();
	4532	+ cm.display.disabled = true;
	4533	+ } else {
	4534	+ cm.display.disabled = false;
	4535	+ if (!val) resetInput(cm);
	4536	+ }
	4537	+ });
	4538	+ option("disableInput", false, function(cm, val) {if (!val) resetInput(cm);}, true);
	4539	+ option("dragDrop", true);
	4540	+
	4541	+ option("cursorBlinkRate", 530);
	4542	+ option("cursorScrollMargin", 0);
	4543	+ option("cursorHeight", 1, updateSelection, true);
	4544	+ option("singleCursorHeightPerLine", true, updateSelection, true);
	4545	+ option("workTime", 100);
	4546	+ option("workDelay", 100);
	4547	+ option("flattenSpans", true, resetModeState, true);
	4548	+ option("addModeClass", false, resetModeState, true);
	4549	+ option("pollInterval", 100);
	4550	+ option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
	4551	+ option("historyEventDelay", 1250);
	4552	+ option("viewportMargin", 10, function(cm){cm.refresh();}, true);
	4553	+ option("maxHighlightLength", 10000, resetModeState, true);
	4554	+ option("moveInputWithCursor", true, function(cm, val) {
	4555	+ if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0;
	4556	+ });
	4557	+
	4558	+ option("tabindex", null, function(cm, val) {
	4559	+ cm.display.input.tabIndex = val || "";
	4560	+ });
	4561	+ option("autofocus", null);
	4562	+
	4563	+ // MODE DEFINITION AND QUERYING
	4564	+
	4565	+ // Known modes, by name and by MIME
	4566	+ var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
	4567	+
	4568	+ // Extra arguments are stored as the mode's dependencies, which is
	4569	+ // used by (legacy) mechanisms like loadmode.js to automatically
	4570	+ // load a mode. (Preferred mechanism is the require/define calls.)
	4571	+ CodeMirror.defineMode = function(name, mode) {
	4572	+ if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
	4573	+ if (arguments.length > 2)
	4574	+ mode.dependencies = Array.prototype.slice.call(arguments, 2);
	4575	+ modes[name] = mode;
	4576	+ };
	4577	+
	4578	+ CodeMirror.defineMIME = function(mime, spec) {
	4579	+ mimeModes[mime] = spec;
	4580	+ };
	4581	+
	4582	+ // Given a MIME type, a {name, ...options} config object, or a name
	4583	+ // string, return a mode config object.
	4584	+ CodeMirror.resolveMode = function(spec) {
	4585	+ if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
	4586	+ spec = mimeModes[spec];
	4587	+ } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
	4588	+ var found = mimeModes[spec.name];
	4589	+ if (typeof found == "string") found = {name: found};
	4590	+ spec = createObj(found, spec);
	4591	+ spec.name = found.name;
	4592	+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
	4593	+ return CodeMirror.resolveMode("application/xml");
	4594	+ }
	4595	+ if (typeof spec == "string") return {name: spec};
	4596	+ else return spec || {name: "null"};
	4597	+ };
	4598	+
	4599	+ // Given a mode spec (anything that resolveMode accepts), find and
	4600	+ // initialize an actual mode object.
	4601	+ CodeMirror.getMode = function(options, spec) {
	4602	+ var spec = CodeMirror.resolveMode(spec);
	4603	+ var mfactory = modes[spec.name];
	4604	+ if (!mfactory) return CodeMirror.getMode(options, "text/plain");
	4605	+ var modeObj = mfactory(options, spec);
	4606	+ if (modeExtensions.hasOwnProperty(spec.name)) {
	4607	+ var exts = modeExtensions[spec.name];
	4608	+ for (var prop in exts) {
	4609	+ if (!exts.hasOwnProperty(prop)) continue;
	4610	+ if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
	4611	+ modeObj[prop] = exts[prop];
	4612	+ }
	4613	+ }
	4614	+ modeObj.name = spec.name;
	4615	+ if (spec.helperType) modeObj.helperType = spec.helperType;
	4616	+ if (spec.modeProps) for (var prop in spec.modeProps)
	4617	+ modeObj[prop] = spec.modeProps[prop];
	4618	+
	4619	+ return modeObj;
	4620	+ };
	4621	+
	4622	+ // Minimal default mode.
	4623	+ CodeMirror.defineMode("null", function() {
	4624	+ return {token: function(stream) {stream.skipToEnd();}};
	4625	+ });
	4626	+ CodeMirror.defineMIME("text/plain", "null");
	4627	+
	4628	+ // This can be used to attach properties to mode objects from
	4629	+ // outside the actual mode definition.
	4630	+ var modeExtensions = CodeMirror.modeExtensions = {};
	4631	+ CodeMirror.extendMode = function(mode, properties) {
	4632	+ var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
	4633	+ copyObj(properties, exts);
	4634	+ };
	4635	+
	4636	+ // EXTENSIONS
	4637	+
	4638	+ CodeMirror.defineExtension = function(name, func) {
	4639	+ CodeMirror.prototype[name] = func;
	4640	+ };
	4641	+ CodeMirror.defineDocExtension = function(name, func) {
	4642	+ Doc.prototype[name] = func;
	4643	+ };
	4644	+ CodeMirror.defineOption = option;
	4645	+
	4646	+ var initHooks = [];
	4647	+ CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
	4648	+
	4649	+ var helpers = CodeMirror.helpers = {};
	4650	+ CodeMirror.registerHelper = function(type, name, value) {
	4651	+ if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
	4652	+ helpers[type][name] = value;
	4653	+ };
	4654	+ CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
	4655	+ CodeMirror.registerHelper(type, name, value);
	4656	+ helpers[type]._global.push({pred: predicate, val: value});
	4657	+ };
	4658	+
	4659	+ // MODE STATE HANDLING
	4660	+
	4661	+ // Utility functions for working with state. Exported because nested
	4662	+ // modes need to do this for their inner modes.
	4663	+
	4664	+ var copyState = CodeMirror.copyState = function(mode, state) {
	4665	+ if (state === true) return state;
	4666	+ if (mode.copyState) return mode.copyState(state);
	4667	+ var nstate = {};
	4668	+ for (var n in state) {
	4669	+ var val = state[n];
	4670	+ if (val instanceof Array) val = val.concat([]);
	4671	+ nstate[n] = val;
	4672	+ }
	4673	+ return nstate;
	4674	+ };
	4675	+
	4676	+ var startState = CodeMirror.startState = function(mode, a1, a2) {
	4677	+ return mode.startState ? mode.startState(a1, a2) : true;
	4678	+ };
	4679	+
	4680	+ // Given a mode and a state (for that mode), find the inner mode and
	4681	+ // state at the position that the state refers to.
	4682	+ CodeMirror.innerMode = function(mode, state) {
	4683	+ while (mode.innerMode) {
	4684	+ var info = mode.innerMode(state);
	4685	+ if (!info || info.mode == mode) break;
	4686	+ state = info.state;
	4687	+ mode = info.mode;
	4688	+ }
	4689	+ return info || {mode: mode, state: state};
	4690	+ };
	4691	+
	4692	+ // STANDARD COMMANDS
	4693	+
	4694	+ // Commands are parameter-less actions that can be performed on an
	4695	+ // editor, mostly used for keybindings.
	4696	+ var commands = CodeMirror.commands = {
	4697	+ selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
	4698	+ singleSelection: function(cm) {
	4699	+ cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
	4700	+ },
	4701	+ killLine: function(cm) {
	4702	+ deleteNearSelection(cm, function(range) {
	4703	+ if (range.empty()) {
	4704	+ var len = getLine(cm.doc, range.head.line).text.length;
	4705	+ if (range.head.ch == len && range.head.line < cm.lastLine())
	4706	+ return {from: range.head, to: Pos(range.head.line + 1, 0)};
	4707	+ else
	4708	+ return {from: range.head, to: Pos(range.head.line, len)};
	4709	+ } else {
	4710	+ return {from: range.from(), to: range.to()};
	4711	+ }
	4712	+ });
	4713	+ },
	4714	+ deleteLine: function(cm) {
	4715	+ deleteNearSelection(cm, function(range) {
	4716	+ return {from: Pos(range.from().line, 0),
	4717	+ to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
	4718	+ });
	4719	+ },
	4720	+ delLineLeft: function(cm) {
	4721	+ deleteNearSelection(cm, function(range) {
	4722	+ return {from: Pos(range.from().line, 0), to: range.from()};
	4723	+ });
	4724	+ },
	4725	+ delWrappedLineLeft: function(cm) {
	4726	+ deleteNearSelection(cm, function(range) {
	4727	+ var top = cm.charCoords(range.head, "div").top + 5;
	4728	+ var leftPos = cm.coordsChar({left: 0, top: top}, "div");
	4729	+ return {from: leftPos, to: range.from()};
	4730	+ });
	4731	+ },
	4732	+ delWrappedLineRight: function(cm) {
	4733	+ deleteNearSelection(cm, function(range) {
	4734	+ var top = cm.charCoords(range.head, "div").top + 5;
	4735	+ var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
	4736	+ return {from: range.from(), to: rightPos };
	4737	+ });
	4738	+ },
	4739	+ undo: function(cm) {cm.undo();},
	4740	+ redo: function(cm) {cm.redo();},
	4741	+ undoSelection: function(cm) {cm.undoSelection();},
	4742	+ redoSelection: function(cm) {cm.redoSelection();},
	4743	+ goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
	4744	+ goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
	4745	+ goLineStart: function(cm) {
	4746	+ cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
	4747	+ {origin: "+move", bias: 1});
	4748	+ },
	4749	+ goLineStartSmart: function(cm) {
	4750	+ cm.extendSelectionsBy(function(range) {
	4751	+ return lineStartSmart(cm, range.head);
	4752	+ }, {origin: "+move", bias: 1});
	4753	+ },
	4754	+ goLineEnd: function(cm) {
	4755	+ cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
	4756	+ {origin: "+move", bias: -1});
	4757	+ },
	4758	+ goLineRight: function(cm) {
	4759	+ cm.extendSelectionsBy(function(range) {
	4760	+ var top = cm.charCoords(range.head, "div").top + 5;
	4761	+ return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
	4762	+ }, sel_move);
	4763	+ },
	4764	+ goLineLeft: function(cm) {
	4765	+ cm.extendSelectionsBy(function(range) {
	4766	+ var top = cm.charCoords(range.head, "div").top + 5;
	4767	+ return cm.coordsChar({left: 0, top: top}, "div");
	4768	+ }, sel_move);
	4769	+ },
	4770	+ goLineLeftSmart: function(cm) {
	4771	+ cm.extendSelectionsBy(function(range) {
	4772	+ var top = cm.charCoords(range.head, "div").top + 5;
	4773	+ var pos = cm.coordsChar({left: 0, top: top}, "div");
	4774	+ if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
	4775	+ return pos;
	4776	+ }, sel_move);
	4777	+ },
	4778	+ goLineUp: function(cm) {cm.moveV(-1, "line");},
	4779	+ goLineDown: function(cm) {cm.moveV(1, "line");},
	4780	+ goPageUp: function(cm) {cm.moveV(-1, "page");},
	4781	+ goPageDown: function(cm) {cm.moveV(1, "page");},
	4782	+ goCharLeft: function(cm) {cm.moveH(-1, "char");},
	4783	+ goCharRight: function(cm) {cm.moveH(1, "char");},
	4784	+ goColumnLeft: function(cm) {cm.moveH(-1, "column");},
	4785	+ goColumnRight: function(cm) {cm.moveH(1, "column");},
	4786	+ goWordLeft: function(cm) {cm.moveH(-1, "word");},
	4787	+ goGroupRight: function(cm) {cm.moveH(1, "group");},
	4788	+ goGroupLeft: function(cm) {cm.moveH(-1, "group");},
	4789	+ goWordRight: function(cm) {cm.moveH(1, "word");},
	4790	+ delCharBefore: function(cm) {cm.deleteH(-1, "char");},
	4791	+ delCharAfter: function(cm) {cm.deleteH(1, "char");},
	4792	+ delWordBefore: function(cm) {cm.deleteH(-1, "word");},
	4793	+ delWordAfter: function(cm) {cm.deleteH(1, "word");},
	4794	+ delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
	4795	+ delGroupAfter: function(cm) {cm.deleteH(1, "group");},
	4796	+ indentAuto: function(cm) {cm.indentSelection("smart");},
	4797	+ indentMore: function(cm) {cm.indentSelection("add");},
	4798	+ indentLess: function(cm) {cm.indentSelection("subtract");},
	4799	+ insertTab: function(cm) {cm.replaceSelection("\t");},
	4800	+ insertSoftTab: function(cm) {
	4801	+ var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
	4802	+ for (var i = 0; i < ranges.length; i++) {
	4803	+ var pos = ranges[i].from();
	4804	+ var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
	4805	+ spaces.push(new Array(tabSize - col % tabSize + 1).join(" "));
	4806	+ }
	4807	+ cm.replaceSelections(spaces);
	4808	+ },
	4809	+ defaultTab: function(cm) {
	4810	+ if (cm.somethingSelected()) cm.indentSelection("add");
	4811	+ else cm.execCommand("insertTab");
	4812	+ },
	4813	+ transposeChars: function(cm) {
	4814	+ runInOp(cm, function() {
	4815	+ var ranges = cm.listSelections(), newSel = [];
	4816	+ for (var i = 0; i < ranges.length; i++) {
	4817	+ var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
	4818	+ if (line) {
	4819	+ if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
	4820	+ if (cur.ch > 0) {
	4821	+ cur = new Pos(cur.line, cur.ch + 1);
	4822	+ cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
	4823	+ Pos(cur.line, cur.ch - 2), cur, "+transpose");
	4824	+ } else if (cur.line > cm.doc.first) {
	4825	+ var prev = getLine(cm.doc, cur.line - 1).text;
	4826	+ if (prev)
	4827	+ cm.replaceRange(line.charAt(0) + "\n" + prev.charAt(prev.length - 1),
	4828	+ Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
	4829	+ }
	4830	+ }
	4831	+ newSel.push(new Range(cur, cur));
	4832	+ }
	4833	+ cm.setSelections(newSel);
	4834	+ });
	4835	+ },
	4836	+ newlineAndIndent: function(cm) {
	4837	+ runInOp(cm, function() {
	4838	+ var len = cm.listSelections().length;
	4839	+ for (var i = 0; i < len; i++) {
	4840	+ var range = cm.listSelections()[i];
	4841	+ cm.replaceRange("\n", range.anchor, range.head, "+input");
	4842	+ cm.indentLine(range.from().line + 1, null, true);
	4843	+ ensureCursorVisible(cm);
	4844	+ }
	4845	+ });
	4846	+ },
	4847	+ toggleOverwrite: function(cm) {cm.toggleOverwrite();}
	4848	+ };
	4849	+
	4850	+ // STANDARD KEYMAPS
	4851	+
	4852	+ var keyMap = CodeMirror.keyMap = {};
	4853	+ keyMap.basic = {
	4854	+ "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
	4855	+ "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
	4856	+ "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
	4857	+ "Tab": "defaultTab", "Shift-Tab": "indentAuto",
	4858	+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
	4859	+ "Esc": "singleSelection"
	4860	+ };
	4861	+ // Note that the save and find-related commands aren't defined by
	4862	+ // default. User code or addons can define them. Unknown commands
	4863	+ // are simply ignored.
	4864	+ keyMap.pcDefault = {
	4865	+ "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
	4866	+ "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
	4867	+ "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
	4868	+ "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
	4869	+ "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
	4870	+ "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
	4871	+ "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
	4872	+ fallthrough: "basic"
	4873	+ };
	4874	+ keyMap.macDefault = {
	4875	+ "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
	4876	+ "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
	4877	+ "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
	4878	+ "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
	4879	+ "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
	4880	+ "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
	4881	+ "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
	4882	+ fallthrough: ["basic", "emacsy"]
	4883	+ };
	4884	+ // Very basic readline/emacs-style bindings, which are standard on Mac.
	4885	+ keyMap.emacsy = {
	4886	+ "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
	4887	+ "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
	4888	+ "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
	4889	+ "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
	4890	+ };
	4891	+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
	4892	+
	4893	+ // KEYMAP DISPATCH
	4894	+
	4895	+ function getKeyMap(val) {
	4896	+ if (typeof val == "string") return keyMap[val];
	4897	+ else return val;
	4898	+ }
	4899	+
	4900	+ // Given an array of keymaps and a key name, call handle on any
	4901	+ // bindings found, until that returns a truthy value, at which point
	4902	+ // we consider the key handled. Implements things like binding a key
	4903	+ // to false stopping further handling and keymap fallthrough.
	4904	+ var lookupKey = CodeMirror.lookupKey = function(name, maps, handle) {
	4905	+ function lookup(map) {
	4906	+ map = getKeyMap(map);
	4907	+ var found = map[name];
	4908	+ if (found === false) return "stop";
	4909	+ if (found != null && handle(found)) return true;
	4910	+ if (map.nofallthrough) return "stop";
	4911	+
	4912	+ var fallthrough = map.fallthrough;
	4913	+ if (fallthrough == null) return false;
	4914	+ if (Object.prototype.toString.call(fallthrough) != "[object Array]")
	4915	+ return lookup(fallthrough);
	4916	+ for (var i = 0; i < fallthrough.length; ++i) {
	4917	+ var done = lookup(fallthrough[i]);
	4918	+ if (done) return done;
	4919	+ }
	4920	+ return false;
	4921	+ }
	4922	+
	4923	+ for (var i = 0; i < maps.length; ++i) {
	4924	+ var done = lookup(maps[i]);
	4925	+ if (done) return done != "stop";
	4926	+ }
	4927	+ };
	4928	+
	4929	+ // Modifier key presses don't count as 'real' key presses for the
	4930	+ // purpose of keymap fallthrough.
	4931	+ var isModifierKey = CodeMirror.isModifierKey = function(event) {
	4932	+ var name = keyNames[event.keyCode];
	4933	+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
	4934	+ };
	4935	+
	4936	+ // Look up the name of a key as indicated by an event object.
	4937	+ var keyName = CodeMirror.keyName = function(event, noShift) {
	4938	+ if (presto && event.keyCode == 34 && event["char"]) return false;
	4939	+ var name = keyNames[event.keyCode];
	4940	+ if (name == null || event.altGraphKey) return false;
	4941	+ if (event.altKey) name = "Alt-" + name;
	4942	+ if (flipCtrlCmd ? event.metaKey : event.ctrlKey) name = "Ctrl-" + name;
	4943	+ if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name;
	4944	+ if (!noShift && event.shiftKey) name = "Shift-" + name;
	4945	+ return name;
	4946	+ };
	4947	+
	4948	+ // FROMTEXTAREA
	4949	+
	4950	+ CodeMirror.fromTextArea = function(textarea, options) {
	4951	+ if (!options) options = {};
	4952	+ options.value = textarea.value;
	4953	+ if (!options.tabindex && textarea.tabindex)
	4954	+ options.tabindex = textarea.tabindex;
	4955	+ if (!options.placeholder && textarea.placeholder)
	4956	+ options.placeholder = textarea.placeholder;
	4957	+ // Set autofocus to true if this textarea is focused, or if it has
	4958	+ // autofocus and no other element is focused.
	4959	+ if (options.autofocus == null) {
	4960	+ var hasFocus = activeElt();
	4961	+ options.autofocus = hasFocus == textarea ||
	4962	+ textarea.getAttribute("autofocus") != null && hasFocus == document.body;
	4963	+ }
	4964	+
	4965	+ function save() {textarea.value = cm.getValue();}
	4966	+ if (textarea.form) {
	4967	+ on(textarea.form, "submit", save);
	4968	+ // Deplorable hack to make the submit method do the right thing.
	4969	+ if (!options.leaveSubmitMethodAlone) {
	4970	+ var form = textarea.form, realSubmit = form.submit;
	4971	+ try {
	4972	+ var wrappedSubmit = form.submit = function() {
	4973	+ save();
	4974	+ form.submit = realSubmit;
	4975	+ form.submit();
	4976	+ form.submit = wrappedSubmit;
	4977	+ };
	4978	+ } catch(e) {}
	4979	+ }
	4980	+ }
	4981	+
	4982	+ textarea.style.display = "none";
	4983	+ var cm = CodeMirror(function(node) {
	4984	+ textarea.parentNode.insertBefore(node, textarea.nextSibling);
	4985	+ }, options);
	4986	+ cm.save = save;
	4987	+ cm.getTextArea = function() { return textarea; };
	4988	+ cm.toTextArea = function() {
	4989	+ cm.toTextArea = isNaN; // Prevent this from being ran twice
	4990	+ save();
	4991	+ textarea.parentNode.removeChild(cm.getWrapperElement());
	4992	+ textarea.style.display = "";
	4993	+ if (textarea.form) {
	4994	+ off(textarea.form, "submit", save);
	4995	+ if (typeof textarea.form.submit == "function")
	4996	+ textarea.form.submit = realSubmit;
	4997	+ }
	4998	+ };
	4999	+ return cm;
	5000	+ };
	5001	+
	5002	+ // STRING STREAM
	5003	+
	5004	+ // Fed to the mode parsers, provides helper functions to make
	5005	+ // parsers more succinct.
	5006	+
	5007	+ var StringStream = CodeMirror.StringStream = function(string, tabSize) {
	5008	+ this.pos = this.start = 0;
	5009	+ this.string = string;
	5010	+ this.tabSize = tabSize || 8;
	5011	+ this.lastColumnPos = this.lastColumnValue = 0;
	5012	+ this.lineStart = 0;
	5013	+ };
	5014	+
	5015	+ StringStream.prototype = {
	5016	+ eol: function() {return this.pos >= this.string.length;},
	5017	+ sol: function() {return this.pos == this.lineStart;},
	5018	+ peek: function() {return this.string.charAt(this.pos) || undefined;},
	5019	+ next: function() {
	5020	+ if (this.pos < this.string.length)
	5021	+ return this.string.charAt(this.pos++);
	5022	+ },
	5023	+ eat: function(match) {
	5024	+ var ch = this.string.charAt(this.pos);
	5025	+ if (typeof match == "string") var ok = ch == match;
	5026	+ else var ok = ch && (match.test ? match.test(ch) : match(ch));
	5027	+ if (ok) {++this.pos; return ch;}
	5028	+ },
	5029	+ eatWhile: function(match) {
	5030	+ var start = this.pos;
	5031	+ while (this.eat(match)){}
	5032	+ return this.pos > start;
	5033	+ },
	5034	+ eatSpace: function() {
	5035	+ var start = this.pos;
	5036	+ while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
	5037	+ return this.pos > start;
	5038	+ },
	5039	+ skipToEnd: function() {this.pos = this.string.length;},
	5040	+ skipTo: function(ch) {
	5041	+ var found = this.string.indexOf(ch, this.pos);
	5042	+ if (found > -1) {this.pos = found; return true;}
	5043	+ },
	5044	+ backUp: function(n) {this.pos -= n;},
	5045	+ column: function() {
	5046	+ if (this.lastColumnPos < this.start) {
	5047	+ this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
	5048	+ this.lastColumnPos = this.start;
	5049	+ }
	5050	+ return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
	5051	+ },
	5052	+ indentation: function() {
	5053	+ return countColumn(this.string, null, this.tabSize) -
	5054	+ (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
	5055	+ },
	5056	+ match: function(pattern, consume, caseInsensitive) {
	5057	+ if (typeof pattern == "string") {
	5058	+ var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
	5059	+ var substr = this.string.substr(this.pos, pattern.length);
	5060	+ if (cased(substr) == cased(pattern)) {
	5061	+ if (consume !== false) this.pos += pattern.length;
	5062	+ return true;
	5063	+ }
	5064	+ } else {
	5065	+ var match = this.string.slice(this.pos).match(pattern);
	5066	+ if (match && match.index > 0) return null;
	5067	+ if (match && consume !== false) this.pos += match[0].length;
	5068	+ return match;
	5069	+ }
	5070	+ },
	5071	+ current: function(){return this.string.slice(this.start, this.pos);},
	5072	+ hideFirstChars: function(n, inner) {
	5073	+ this.lineStart += n;
	5074	+ try { return inner(); }
	5075	+ finally { this.lineStart -= n; }
	5076	+ }
	5077	+ };
	5078	+
	5079	+ // TEXTMARKERS
	5080	+
	5081	+ // Created with markText and setBookmark methods. A TextMarker is a
	5082	+ // handle that can be used to clear or find a marked position in the
	5083	+ // document. Line objects hold arrays (markedSpans) containing
	5084	+ // {from, to, marker} object pointing to such marker objects, and
	5085	+ // indicating that such a marker is present on that line. Multiple
	5086	+ // lines may point to the same marker when it spans across lines.
	5087	+ // The spans will have null for their from/to properties when the
	5088	+ // marker continues beyond the start/end of the line. Markers have
	5089	+ // links back to the lines they currently touch.
	5090	+
	5091	+ var TextMarker = CodeMirror.TextMarker = function(doc, type) {
	5092	+ this.lines = [];
	5093	+ this.type = type;
	5094	+ this.doc = doc;
	5095	+ };
	5096	+ eventMixin(TextMarker);
	5097	+
	5098	+ // Clear the marker.
	5099	+ TextMarker.prototype.clear = function() {
	5100	+ if (this.explicitlyCleared) return;
	5101	+ var cm = this.doc.cm, withOp = cm && !cm.curOp;
	5102	+ if (withOp) startOperation(cm);
	5103	+ if (hasHandler(this, "clear")) {
	5104	+ var found = this.find();
	5105	+ if (found) signalLater(this, "clear", found.from, found.to);
	5106	+ }
	5107	+ var min = null, max = null;
	5108	+ for (var i = 0; i < this.lines.length; ++i) {
	5109	+ var line = this.lines[i];
	5110	+ var span = getMarkedSpanFor(line.markedSpans, this);
	5111	+ if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
	5112	+ else if (cm) {
	5113	+ if (span.to != null) max = lineNo(line);
	5114	+ if (span.from != null) min = lineNo(line);
	5115	+ }
	5116	+ line.markedSpans = removeMarkedSpan(line.markedSpans, span);
	5117	+ if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
	5118	+ updateLineHeight(line, textHeight(cm.display));
	5119	+ }
	5120	+ if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
	5121	+ var visual = visualLine(this.lines[i]), len = lineLength(visual);
	5122	+ if (len > cm.display.maxLineLength) {
	5123	+ cm.display.maxLine = visual;
	5124	+ cm.display.maxLineLength = len;
	5125	+ cm.display.maxLineChanged = true;
	5126	+ }
	5127	+ }
	5128	+
	5129	+ if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
	5130	+ this.lines.length = 0;
	5131	+ this.explicitlyCleared = true;
	5132	+ if (this.atomic && this.doc.cantEdit) {
	5133	+ this.doc.cantEdit = false;
	5134	+ if (cm) reCheckSelection(cm.doc);
	5135	+ }
	5136	+ if (cm) signalLater(cm, "markerCleared", cm, this);
	5137	+ if (withOp) endOperation(cm);
	5138	+ if (this.parent) this.parent.clear();
	5139	+ };
	5140	+
	5141	+ // Find the position of the marker in the document. Returns a {from,
	5142	+ // to} object by default. Side can be passed to get a specific side
	5143	+ // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
	5144	+ // Pos objects returned contain a line object, rather than a line
	5145	+ // number (used to prevent looking up the same line twice).
	5146	+ TextMarker.prototype.find = function(side, lineObj) {
	5147	+ if (side == null && this.type == "bookmark") side = 1;
	5148	+ var from, to;
	5149	+ for (var i = 0; i < this.lines.length; ++i) {
	5150	+ var line = this.lines[i];
	5151	+ var span = getMarkedSpanFor(line.markedSpans, this);
	5152	+ if (span.from != null) {
	5153	+ from = Pos(lineObj ? line : lineNo(line), span.from);
	5154	+ if (side == -1) return from;
	5155	+ }
	5156	+ if (span.to != null) {
	5157	+ to = Pos(lineObj ? line : lineNo(line), span.to);
	5158	+ if (side == 1) return to;
	5159	+ }
	5160	+ }
	5161	+ return from && {from: from, to: to};
	5162	+ };
	5163	+
	5164	+ // Signals that the marker's widget changed, and surrounding layout
	5165	+ // should be recomputed.
	5166	+ TextMarker.prototype.changed = function() {
	5167	+ var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
	5168	+ if (!pos || !cm) return;
	5169	+ runInOp(cm, function() {
	5170	+ var line = pos.line, lineN = lineNo(pos.line);
	5171	+ var view = findViewForLine(cm, lineN);
	5172	+ if (view) {
	5173	+ clearLineMeasurementCacheFor(view);
	5174	+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
	5175	+ }
	5176	+ cm.curOp.updateMaxLine = true;
	5177	+ if (!lineIsHidden(widget.doc, line) && widget.height != null) {
	5178	+ var oldHeight = widget.height;
	5179	+ widget.height = null;
	5180	+ var dHeight = widgetHeight(widget) - oldHeight;
	5181	+ if (dHeight)
	5182	+ updateLineHeight(line, line.height + dHeight);
	5183	+ }
	5184	+ });
	5185	+ };
	5186	+
	5187	+ TextMarker.prototype.attachLine = function(line) {
	5188	+ if (!this.lines.length && this.doc.cm) {
	5189	+ var op = this.doc.cm.curOp;
	5190	+ if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
	5191	+ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
	5192	+ }
	5193	+ this.lines.push(line);
	5194	+ };
	5195	+ TextMarker.prototype.detachLine = function(line) {
	5196	+ this.lines.splice(indexOf(this.lines, line), 1);
	5197	+ if (!this.lines.length && this.doc.cm) {
	5198	+ var op = this.doc.cm.curOp;
	5199	+ (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
	5200	+ }
	5201	+ };
	5202	+
	5203	+ // Collapsed markers have unique ids, in order to be able to order
	5204	+ // them, which is needed for uniquely determining an outer marker
	5205	+ // when they overlap (they may nest, but not partially overlap).
	5206	+ var nextMarkerId = 0;
	5207	+
	5208	+ // Create a marker, wire it up to the right lines, and
	5209	+ function markText(doc, from, to, options, type) {
	5210	+ // Shared markers (across linked documents) are handled separately
	5211	+ // (markTextShared will call out to this again, once per
	5212	+ // document).
	5213	+ if (options && options.shared) return markTextShared(doc, from, to, options, type);
	5214	+ // Ensure we are in an operation.
	5215	+ if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
	5216	+
	5217	+ var marker = new TextMarker(doc, type), diff = cmp(from, to);
	5218	+ if (options) copyObj(options, marker, false);
	5219	+ // Don't connect empty markers unless clearWhenEmpty is false
	5220	+ if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
	5221	+ return marker;
	5222	+ if (marker.replacedWith) {
	5223	+ // Showing up as a widget implies collapsed (widget replaces text)
	5224	+ marker.collapsed = true;
	5225	+ marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
	5226	+ if (!options.handleMouseEvents) marker.widgetNode.ignoreEvents = true;
	5227	+ if (options.insertLeft) marker.widgetNode.insertLeft = true;
	5228	+ }
	5229	+ if (marker.collapsed) {
	5230	+ if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
	5231	+ from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
	5232	+ throw new Error("Inserting collapsed marker partially overlapping an existing one");
	5233	+ sawCollapsedSpans = true;
	5234	+ }
	5235	+
	5236	+ if (marker.addToHistory)
	5237	+ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
	5238	+
	5239	+ var curLine = from.line, cm = doc.cm, updateMaxLine;
	5240	+ doc.iter(curLine, to.line + 1, function(line) {
	5241	+ if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
	5242	+ updateMaxLine = true;
	5243	+ if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
	5244	+ addMarkedSpan(line, new MarkedSpan(marker,
	5245	+ curLine == from.line ? from.ch : null,
	5246	+ curLine == to.line ? to.ch : null));
	5247	+ ++curLine;
	5248	+ });
	5249	+ // lineIsHidden depends on the presence of the spans, so needs a second pass
	5250	+ if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
	5251	+ if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
	5252	+ });
	5253	+
	5254	+ if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
	5255	+
	5256	+ if (marker.readOnly) {
	5257	+ sawReadOnlySpans = true;
	5258	+ if (doc.history.done.length || doc.history.undone.length)
	5259	+ doc.clearHistory();
	5260	+ }
	5261	+ if (marker.collapsed) {
	5262	+ marker.id = ++nextMarkerId;
	5263	+ marker.atomic = true;
	5264	+ }
	5265	+ if (cm) {
	5266	+ // Sync editor state
	5267	+ if (updateMaxLine) cm.curOp.updateMaxLine = true;
	5268	+ if (marker.collapsed)
	5269	+ regChange(cm, from.line, to.line + 1);
	5270	+ else if (marker.className || marker.title || marker.startStyle || marker.endStyle)
	5271	+ for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
	5272	+ if (marker.atomic) reCheckSelection(cm.doc);
	5273	+ signalLater(cm, "markerAdded", cm, marker);
	5274	+ }
	5275	+ return marker;
	5276	+ }
	5277	+
	5278	+ // SHARED TEXTMARKERS
	5279	+
	5280	+ // A shared marker spans multiple linked documents. It is
	5281	+ // implemented as a meta-marker-object controlling multiple normal
	5282	+ // markers.
	5283	+ var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
	5284	+ this.markers = markers;
	5285	+ this.primary = primary;
	5286	+ for (var i = 0; i < markers.length; ++i)
	5287	+ markers[i].parent = this;
	5288	+ };
	5289	+ eventMixin(SharedTextMarker);
	5290	+
	5291	+ SharedTextMarker.prototype.clear = function() {
	5292	+ if (this.explicitlyCleared) return;
	5293	+ this.explicitlyCleared = true;
	5294	+ for (var i = 0; i < this.markers.length; ++i)
	5295	+ this.markers[i].clear();
	5296	+ signalLater(this, "clear");
	5297	+ };
	5298	+ SharedTextMarker.prototype.find = function(side, lineObj) {
	5299	+ return this.primary.find(side, lineObj);
	5300	+ };
	5301	+
	5302	+ function markTextShared(doc, from, to, options, type) {
	5303	+ options = copyObj(options);
	5304	+ options.shared = false;
	5305	+ var markers = [markText(doc, from, to, options, type)], primary = markers[0];
	5306	+ var widget = options.widgetNode;
	5307	+ linkedDocs(doc, function(doc) {
	5308	+ if (widget) options.widgetNode = widget.cloneNode(true);
	5309	+ markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
	5310	+ for (var i = 0; i < doc.linked.length; ++i)
	5311	+ if (doc.linked[i].isParent) return;
	5312	+ primary = lst(markers);
	5313	+ });
	5314	+ return new SharedTextMarker(markers, primary);
	5315	+ }
	5316	+
	5317	+ function findSharedMarkers(doc) {
	5318	+ return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
	5319	+ function(m) { return m.parent; });
	5320	+ }
	5321	+
	5322	+ function copySharedMarkers(doc, markers) {
	5323	+ for (var i = 0; i < markers.length; i++) {
	5324	+ var marker = markers[i], pos = marker.find();
	5325	+ var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
	5326	+ if (cmp(mFrom, mTo)) {
	5327	+ var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
	5328	+ marker.markers.push(subMark);
	5329	+ subMark.parent = marker;
	5330	+ }
	5331	+ }
	5332	+ }
	5333	+
	5334	+ function detachSharedMarkers(markers) {
	5335	+ for (var i = 0; i < markers.length; i++) {
	5336	+ var marker = markers[i], linked = [marker.primary.doc];;
	5337	+ linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
	5338	+ for (var j = 0; j < marker.markers.length; j++) {
	5339	+ var subMarker = marker.markers[j];
	5340	+ if (indexOf(linked, subMarker.doc) == -1) {
	5341	+ subMarker.parent = null;
	5342	+ marker.markers.splice(j--, 1);
	5343	+ }
	5344	+ }
	5345	+ }
	5346	+ }
	5347	+
	5348	+ // TEXTMARKER SPANS
	5349	+
	5350	+ function MarkedSpan(marker, from, to) {
	5351	+ this.marker = marker;
	5352	+ this.from = from; this.to = to;
	5353	+ }
	5354	+
	5355	+ // Search an array of spans for a span matching the given marker.
	5356	+ function getMarkedSpanFor(spans, marker) {
	5357	+ if (spans) for (var i = 0; i < spans.length; ++i) {
	5358	+ var span = spans[i];
	5359	+ if (span.marker == marker) return span;
	5360	+ }
	5361	+ }
	5362	+ // Remove a span from an array, returning undefined if no spans are
	5363	+ // left (we don't store arrays for lines without spans).
	5364	+ function removeMarkedSpan(spans, span) {
	5365	+ for (var r, i = 0; i < spans.length; ++i)
	5366	+ if (spans[i] != span) (r || (r = [])).push(spans[i]);
	5367	+ return r;
	5368	+ }
	5369	+ // Add a span to a line.
	5370	+ function addMarkedSpan(line, span) {
	5371	+ line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
	5372	+ span.marker.attachLine(line);
	5373	+ }
	5374	+
	5375	+ // Used for the algorithm that adjusts markers for a change in the
	5376	+ // document. These functions cut an array of spans at a given
	5377	+ // character position, returning an array of remaining chunks (or
	5378	+ // undefined if nothing remains).
	5379	+ function markedSpansBefore(old, startCh, isInsert) {
	5380	+ if (old) for (var i = 0, nw; i < old.length; ++i) {
	5381	+ var span = old[i], marker = span.marker;
	5382	+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
	5383	+ if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
	5384	+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
	5385	+ (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
	5386	+ }
	5387	+ }
	5388	+ return nw;
	5389	+ }
	5390	+ function markedSpansAfter(old, endCh, isInsert) {
	5391	+ if (old) for (var i = 0, nw; i < old.length; ++i) {
	5392	+ var span = old[i], marker = span.marker;
	5393	+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
	5394	+ if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
	5395	+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
	5396	+ (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
	5397	+ span.to == null ? null : span.to - endCh));
	5398	+ }
	5399	+ }
	5400	+ return nw;
	5401	+ }
	5402	+
	5403	+ // Given a change object, compute the new set of marker spans that
	5404	+ // cover the line in which the change took place. Removes spans
	5405	+ // entirely within the change, reconnects spans belonging to the
	5406	+ // same marker that appear on both sides of the change, and cuts off
	5407	+ // spans partially within the change. Returns an array of span
	5408	+ // arrays with one element for each line in (after) the change.
	5409	+ function stretchSpansOverChange(doc, change) {
	5410	+ var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
	5411	+ var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
	5412	+ if (!oldFirst && !oldLast) return null;
	5413	+
	5414	+ var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
	5415	+ // Get the spans that 'stick out' on both sides
	5416	+ var first = markedSpansBefore(oldFirst, startCh, isInsert);
	5417	+ var last = markedSpansAfter(oldLast, endCh, isInsert);
	5418	+
	5419	+ // Next, merge those two ends
	5420	+ var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
	5421	+ if (first) {
	5422	+ // Fix up .to properties of first
	5423	+ for (var i = 0; i < first.length; ++i) {
	5424	+ var span = first[i];
	5425	+ if (span.to == null) {
	5426	+ var found = getMarkedSpanFor(last, span.marker);
	5427	+ if (!found) span.to = startCh;
	5428	+ else if (sameLine) span.to = found.to == null ? null : found.to + offset;
	5429	+ }
	5430	+ }
	5431	+ }
	5432	+ if (last) {
	5433	+ // Fix up .from in last (or move them into first in case of sameLine)
	5434	+ for (var i = 0; i < last.length; ++i) {
	5435	+ var span = last[i];
	5436	+ if (span.to != null) span.to += offset;
	5437	+ if (span.from == null) {
	5438	+ var found = getMarkedSpanFor(first, span.marker);
	5439	+ if (!found) {
	5440	+ span.from = offset;
	5441	+ if (sameLine) (first || (first = [])).push(span);
	5442	+ }
	5443	+ } else {
	5444	+ span.from += offset;
	5445	+ if (sameLine) (first || (first = [])).push(span);
	5446	+ }
	5447	+ }
	5448	+ }
	5449	+ // Make sure we didn't create any zero-length spans
	5450	+ if (first) first = clearEmptySpans(first);
	5451	+ if (last && last != first) last = clearEmptySpans(last);
	5452	+
	5453	+ var newMarkers = [first];
	5454	+ if (!sameLine) {
	5455	+ // Fill gap with whole-line-spans
	5456	+ var gap = change.text.length - 2, gapMarkers;
	5457	+ if (gap > 0 && first)
	5458	+ for (var i = 0; i < first.length; ++i)
	5459	+ if (first[i].to == null)
	5460	+ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
	5461	+ for (var i = 0; i < gap; ++i)
	5462	+ newMarkers.push(gapMarkers);
	5463	+ newMarkers.push(last);
	5464	+ }
	5465	+ return newMarkers;
	5466	+ }
	5467	+
	5468	+ // Remove spans that are empty and don't have a clearWhenEmpty
	5469	+ // option of false.
	5470	+ function clearEmptySpans(spans) {
	5471	+ for (var i = 0; i < spans.length; ++i) {
	5472	+ var span = spans[i];
	5473	+ if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
	5474	+ spans.splice(i--, 1);
	5475	+ }
	5476	+ if (!spans.length) return null;
	5477	+ return spans;
	5478	+ }
	5479	+
	5480	+ // Used for un/re-doing changes from the history. Combines the
	5481	+ // result of computing the existing spans with the set of spans that
	5482	+ // existed in the history (so that deleting around a span and then
	5483	+ // undoing brings back the span).
	5484	+ function mergeOldSpans(doc, change) {
	5485	+ var old = getOldSpans(doc, change);
	5486	+ var stretched = stretchSpansOverChange(doc, change);
	5487	+ if (!old) return stretched;
	5488	+ if (!stretched) return old;
	5489	+
	5490	+ for (var i = 0; i < old.length; ++i) {
	5491	+ var oldCur = old[i], stretchCur = stretched[i];
	5492	+ if (oldCur && stretchCur) {
	5493	+ spans: for (var j = 0; j < stretchCur.length; ++j) {
	5494	+ var span = stretchCur[j];
	5495	+ for (var k = 0; k < oldCur.length; ++k)
	5496	+ if (oldCur[k].marker == span.marker) continue spans;
	5497	+ oldCur.push(span);
	5498	+ }
	5499	+ } else if (stretchCur) {
	5500	+ old[i] = stretchCur;
	5501	+ }
	5502	+ }
	5503	+ return old;
	5504	+ }
	5505	+
	5506	+ // Used to 'clip' out readOnly ranges when making a change.
	5507	+ function removeReadOnlyRanges(doc, from, to) {
	5508	+ var markers = null;
	5509	+ doc.iter(from.line, to.line + 1, function(line) {
	5510	+ if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
	5511	+ var mark = line.markedSpans[i].marker;
	5512	+ if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
	5513	+ (markers || (markers = [])).push(mark);
	5514	+ }
	5515	+ });
	5516	+ if (!markers) return null;
	5517	+ var parts = [{from: from, to: to}];
	5518	+ for (var i = 0; i < markers.length; ++i) {
	5519	+ var mk = markers[i], m = mk.find(0);
	5520	+ for (var j = 0; j < parts.length; ++j) {
	5521	+ var p = parts[j];
	5522	+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
	5523	+ var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
	5524	+ if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
	5525	+ newParts.push({from: p.from, to: m.from});
	5526	+ if (dto > 0 || !mk.inclusiveRight && !dto)
	5527	+ newParts.push({from: m.to, to: p.to});
	5528	+ parts.splice.apply(parts, newParts);
	5529	+ j += newParts.length - 1;
	5530	+ }
	5531	+ }
	5532	+ return parts;
	5533	+ }
	5534	+
	5535	+ // Connect or disconnect spans from a line.
	5536	+ function detachMarkedSpans(line) {
	5537	+ var spans = line.markedSpans;
	5538	+ if (!spans) return;
	5539	+ for (var i = 0; i < spans.length; ++i)
	5540	+ spans[i].marker.detachLine(line);
	5541	+ line.markedSpans = null;
	5542	+ }
	5543	+ function attachMarkedSpans(line, spans) {
	5544	+ if (!spans) return;
	5545	+ for (var i = 0; i < spans.length; ++i)
	5546	+ spans[i].marker.attachLine(line);
	5547	+ line.markedSpans = spans;
	5548	+ }
	5549	+
	5550	+ // Helpers used when computing which overlapping collapsed span
	5551	+ // counts as the larger one.
	5552	+ function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
	5553	+ function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
	5554	+
	5555	+ // Returns a number indicating which of two overlapping collapsed
	5556	+ // spans is larger (and thus includes the other). Falls back to
	5557	+ // comparing ids when the spans cover exactly the same range.
	5558	+ function compareCollapsedMarkers(a, b) {
	5559	+ var lenDiff = a.lines.length - b.lines.length;
	5560	+ if (lenDiff != 0) return lenDiff;
	5561	+ var aPos = a.find(), bPos = b.find();
	5562	+ var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
	5563	+ if (fromCmp) return -fromCmp;
	5564	+ var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
	5565	+ if (toCmp) return toCmp;
	5566	+ return b.id - a.id;
	5567	+ }
	5568	+
	5569	+ // Find out whether a line ends or starts in a collapsed span. If
	5570	+ // so, return the marker for that span.
	5571	+ function collapsedSpanAtSide(line, start) {
	5572	+ var sps = sawCollapsedSpans && line.markedSpans, found;
	5573	+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
	5574	+ sp = sps[i];
	5575	+ if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
	5576	+ (!found || compareCollapsedMarkers(found, sp.marker) < 0))
	5577	+ found = sp.marker;
	5578	+ }
	5579	+ return found;
	5580	+ }
	5581	+ function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
	5582	+ function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
	5583	+
	5584	+ // Test whether there exists a collapsed span that partially
	5585	+ // overlaps (covers the start or end, but not both) of a new span.
	5586	+ // Such overlap is not allowed.
	5587	+ function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
	5588	+ var line = getLine(doc, lineNo);
	5589	+ var sps = sawCollapsedSpans && line.markedSpans;
	5590	+ if (sps) for (var i = 0; i < sps.length; ++i) {
	5591	+ var sp = sps[i];
	5592	+ if (!sp.marker.collapsed) continue;
	5593	+ var found = sp.marker.find(0);
	5594	+ var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
	5595	+ var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
	5596	+ if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
	5597	+ if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||
	5598	+ fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))
	5599	+ return true;
	5600	+ }
	5601	+ }
	5602	+
	5603	+ // A visual line is a line as drawn on the screen. Folding, for
	5604	+ // example, can cause multiple logical lines to appear on the same
	5605	+ // visual line. This finds the start of the visual line that the
	5606	+ // given line is part of (usually that is the line itself).
	5607	+ function visualLine(line) {
	5608	+ var merged;
	5609	+ while (merged = collapsedSpanAtStart(line))
	5610	+ line = merged.find(-1, true).line;
	5611	+ return line;
	5612	+ }
	5613	+
	5614	+ // Returns an array of logical lines that continue the visual line
	5615	+ // started by the argument, or undefined if there are no such lines.
	5616	+ function visualLineContinued(line) {
	5617	+ var merged, lines;
	5618	+ while (merged = collapsedSpanAtEnd(line)) {
	5619	+ line = merged.find(1, true).line;
	5620	+ (lines || (lines = [])).push(line);
	5621	+ }
	5622	+ return lines;
	5623	+ }
	5624	+
	5625	+ // Get the line number of the start of the visual line that the
	5626	+ // given line number is part of.
	5627	+ function visualLineNo(doc, lineN) {
	5628	+ var line = getLine(doc, lineN), vis = visualLine(line);
	5629	+ if (line == vis) return lineN;
	5630	+ return lineNo(vis);
	5631	+ }
	5632	+ // Get the line number of the start of the next visual line after
	5633	+ // the given line.
	5634	+ function visualLineEndNo(doc, lineN) {
	5635	+ if (lineN > doc.lastLine()) return lineN;
	5636	+ var line = getLine(doc, lineN), merged;
	5637	+ if (!lineIsHidden(doc, line)) return lineN;
	5638	+ while (merged = collapsedSpanAtEnd(line))
	5639	+ line = merged.find(1, true).line;
	5640	+ return lineNo(line) + 1;
	5641	+ }
	5642	+
	5643	+ // Compute whether a line is hidden. Lines count as hidden when they
	5644	+ // are part of a visual line that starts with another line, or when
	5645	+ // they are entirely covered by collapsed, non-widget span.
	5646	+ function lineIsHidden(doc, line) {
	5647	+ var sps = sawCollapsedSpans && line.markedSpans;
	5648	+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
	5649	+ sp = sps[i];
	5650	+ if (!sp.marker.collapsed) continue;
	5651	+ if (sp.from == null) return true;
	5652	+ if (sp.marker.widgetNode) continue;
	5653	+ if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
	5654	+ return true;
	5655	+ }
	5656	+ }
	5657	+ function lineIsHiddenInner(doc, line, span) {
	5658	+ if (span.to == null) {
	5659	+ var end = span.marker.find(1, true);
	5660	+ return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
	5661	+ }
	5662	+ if (span.marker.inclusiveRight && span.to == line.text.length)
	5663	+ return true;
	5664	+ for (var sp, i = 0; i < line.markedSpans.length; ++i) {
	5665	+ sp = line.markedSpans[i];
	5666	+ if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
	5667	+ (sp.to == null || sp.to != span.from) &&
	5668	+ (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
	5669	+ lineIsHiddenInner(doc, line, sp)) return true;
	5670	+ }
	5671	+ }
	5672	+
	5673	+ // LINE WIDGETS
	5674	+
	5675	+ // Line widgets are block elements displayed above or below a line.
	5676	+
	5677	+ var LineWidget = CodeMirror.LineWidget = function(cm, node, options) {
	5678	+ if (options) for (var opt in options) if (options.hasOwnProperty(opt))
	5679	+ this[opt] = options[opt];
	5680	+ this.cm = cm;
	5681	+ this.node = node;
	5682	+ };
	5683	+ eventMixin(LineWidget);
	5684	+
	5685	+ function adjustScrollWhenAboveVisible(cm, line, diff) {
	5686	+ if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
	5687	+ addToScrollPos(cm, null, diff);
	5688	+ }
	5689	+
	5690	+ LineWidget.prototype.clear = function() {
	5691	+ var cm = this.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
	5692	+ if (no == null || !ws) return;
	5693	+ for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
	5694	+ if (!ws.length) line.widgets = null;
	5695	+ var height = widgetHeight(this);
	5696	+ runInOp(cm, function() {
	5697	+ adjustScrollWhenAboveVisible(cm, line, -height);
	5698	+ regLineChange(cm, no, "widget");
	5699	+ updateLineHeight(line, Math.max(0, line.height - height));
	5700	+ });
	5701	+ };
	5702	+ LineWidget.prototype.changed = function() {
	5703	+ var oldH = this.height, cm = this.cm, line = this.line;
	5704	+ this.height = null;
	5705	+ var diff = widgetHeight(this) - oldH;
	5706	+ if (!diff) return;
	5707	+ runInOp(cm, function() {
	5708	+ cm.curOp.forceUpdate = true;
	5709	+ adjustScrollWhenAboveVisible(cm, line, diff);
	5710	+ updateLineHeight(line, line.height + diff);
	5711	+ });
	5712	+ };
	5713	+
	5714	+ function widgetHeight(widget) {
	5715	+ if (widget.height != null) return widget.height;
	5716	+ if (!contains(document.body, widget.node)) {
	5717	+ var parentStyle = "position: relative;";
	5718	+ if (widget.coverGutter)
	5719	+ parentStyle += "margin-left: -" + widget.cm.getGutterElement().offsetWidth + "px;";
	5720	+ removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, parentStyle));
	5721	+ }
	5722	+ return widget.height = widget.node.offsetHeight;
	5723	+ }
	5724	+
	5725	+ function addLineWidget(cm, handle, node, options) {
	5726	+ var widget = new LineWidget(cm, node, options);
	5727	+ if (widget.noHScroll) cm.display.alignWidgets = true;
	5728	+ changeLine(cm.doc, handle, "widget", function(line) {
	5729	+ var widgets = line.widgets || (line.widgets = []);
	5730	+ if (widget.insertAt == null) widgets.push(widget);
	5731	+ else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
	5732	+ widget.line = line;
	5733	+ if (!lineIsHidden(cm.doc, line)) {
	5734	+ var aboveVisible = heightAtLine(line) < cm.doc.scrollTop;
	5735	+ updateLineHeight(line, line.height + widgetHeight(widget));
	5736	+ if (aboveVisible) addToScrollPos(cm, null, widget.height);
	5737	+ cm.curOp.forceUpdate = true;
	5738	+ }
	5739	+ return true;
	5740	+ });
	5741	+ return widget;
	5742	+ }
	5743	+
	5744	+ // LINE DATA STRUCTURE
	5745	+
	5746	+ // Line objects. These hold state related to a line, including
	5747	+ // highlighting info (the styles array).
	5748	+ var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
	5749	+ this.text = text;
	5750	+ attachMarkedSpans(this, markedSpans);
	5751	+ this.height = estimateHeight ? estimateHeight(this) : 1;
	5752	+ };
	5753	+ eventMixin(Line);
	5754	+ Line.prototype.lineNo = function() { return lineNo(this); };
	5755	+
	5756	+ // Change the content (text, markers) of a line. Automatically
	5757	+ // invalidates cached information and tries to re-estimate the
	5758	+ // line's height.
	5759	+ function updateLine(line, text, markedSpans, estimateHeight) {
	5760	+ line.text = text;
	5761	+ if (line.stateAfter) line.stateAfter = null;
	5762	+ if (line.styles) line.styles = null;
	5763	+ if (line.order != null) line.order = null;
	5764	+ detachMarkedSpans(line);
	5765	+ attachMarkedSpans(line, markedSpans);
	5766	+ var estHeight = estimateHeight ? estimateHeight(line) : 1;
	5767	+ if (estHeight != line.height) updateLineHeight(line, estHeight);
	5768	+ }
	5769	+
	5770	+ // Detach a line from the document tree and its markers.
	5771	+ function cleanUpLine(line) {
	5772	+ line.parent = null;
	5773	+ detachMarkedSpans(line);
	5774	+ }
	5775	+
	5776	+ function extractLineClasses(type, output) {
	5777	+ if (type) for (;;) {
	5778	+ var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
	5779	+ if (!lineClass) break;
	5780	+ type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
	5781	+ var prop = lineClass[1] ? "bgClass" : "textClass";
	5782	+ if (output[prop] == null)
	5783	+ output[prop] = lineClass[2];
	5784	+ else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
	5785	+ output[prop] += " " + lineClass[2];
	5786	+ }
	5787	+ return type;
	5788	+ }
	5789	+
	5790	+ function callBlankLine(mode, state) {
	5791	+ if (mode.blankLine) return mode.blankLine(state);
	5792	+ if (!mode.innerMode) return;
	5793	+ var inner = CodeMirror.innerMode(mode, state);
	5794	+ if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
	5795	+ }
	5796	+
	5797	+ function readToken(mode, stream, state) {
	5798	+ for (var i = 0; i < 10; i++) {
	5799	+ var style = mode.token(stream, state);
	5800	+ if (stream.pos > stream.start) return style;
	5801	+ }
	5802	+ throw new Error("Mode " + mode.name + " failed to advance stream.");
	5803	+ }
	5804	+
	5805	+ // Run the given mode's parser over a line, calling f for each token.
	5806	+ function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
	5807	+ var flattenSpans = mode.flattenSpans;
	5808	+ if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
	5809	+ var curStart = 0, curStyle = null;
	5810	+ var stream = new StringStream(text, cm.options.tabSize), style;
	5811	+ if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
	5812	+ while (!stream.eol()) {
	5813	+ if (stream.pos > cm.options.maxHighlightLength) {
	5814	+ flattenSpans = false;
	5815	+ if (forceToEnd) processLine(cm, text, state, stream.pos);
	5816	+ stream.pos = text.length;
	5817	+ style = null;
	5818	+ } else {
	5819	+ style = extractLineClasses(readToken(mode, stream, state), lineClasses);
	5820	+ }
	5821	+ if (cm.options.addModeClass) {
	5822	+ var mName = CodeMirror.innerMode(mode, state).mode.name;
	5823	+ if (mName) style = "m-" + (style ? mName + " " + style : mName);
	5824	+ }
	5825	+ if (!flattenSpans || curStyle != style) {
	5826	+ if (curStart < stream.start) f(stream.start, curStyle);
	5827	+ curStart = stream.start; curStyle = style;
	5828	+ }
	5829	+ stream.start = stream.pos;
	5830	+ }
	5831	+ while (curStart < stream.pos) {
	5832	+ // Webkit seems to refuse to render text nodes longer than 57444 characters
	5833	+ var pos = Math.min(stream.pos, curStart + 50000);
	5834	+ f(pos, curStyle);
	5835	+ curStart = pos;
	5836	+ }
	5837	+ }
	5838	+
	5839	+ // Compute a style array (an array starting with a mode generation
	5840	+ // -- for invalidation -- followed by pairs of end positions and
	5841	+ // style strings), which is used to highlight the tokens on the
	5842	+ // line.
	5843	+ function highlightLine(cm, line, state, forceToEnd) {
	5844	+ // A styles array always starts with a number identifying the
	5845	+ // mode/overlays that it is based on (for easy invalidation).
	5846	+ var st = [cm.state.modeGen], lineClasses = {};
	5847	+ // Compute the base array of styles
	5848	+ runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
	5849	+ st.push(end, style);
	5850	+ }, lineClasses, forceToEnd);
	5851	+
	5852	+ // Run overlays, adjust style array.
	5853	+ for (var o = 0; o < cm.state.overlays.length; ++o) {
	5854	+ var overlay = cm.state.overlays[o], i = 1, at = 0;
	5855	+ runMode(cm, line.text, overlay.mode, true, function(end, style) {
	5856	+ var start = i;
	5857	+ // Ensure there's a token end at the current position, and that i points at it
	5858	+ while (at < end) {
	5859	+ var i_end = st[i];
	5860	+ if (i_end > end)
	5861	+ st.splice(i, 1, end, st[i+1], i_end);
	5862	+ i += 2;
	5863	+ at = Math.min(end, i_end);
	5864	+ }
	5865	+ if (!style) return;
	5866	+ if (overlay.opaque) {
	5867	+ st.splice(start, i - start, end, "cm-overlay " + style);
	5868	+ i = start + 2;
	5869	+ } else {
	5870	+ for (; start < i; start += 2) {
	5871	+ var cur = st[start+1];
	5872	+ st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
	5873	+ }
	5874	+ }
	5875	+ }, lineClasses);
	5876	+ }
	5877	+
	5878	+ return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
	5879	+ }
	5880	+
	5881	+ function getLineStyles(cm, line) {
	5882	+ if (!line.styles || line.styles[0] != cm.state.modeGen) {
	5883	+ var result = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line)));
	5884	+ line.styles = result.styles;
	5885	+ if (result.classes) line.styleClasses = result.classes;
	5886	+ else if (line.styleClasses) line.styleClasses = null;
	5887	+ }
	5888	+ return line.styles;
	5889	+ }
	5890	+
	5891	+ // Lightweight form of highlight -- proceed over this line and
	5892	+ // update state, but don't save a style array. Used for lines that
	5893	+ // aren't currently visible.
	5894	+ function processLine(cm, text, state, startAt) {
	5895	+ var mode = cm.doc.mode;
	5896	+ var stream = new StringStream(text, cm.options.tabSize);
	5897	+ stream.start = stream.pos = startAt || 0;
	5898	+ if (text == "") callBlankLine(mode, state);
	5899	+ while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) {
	5900	+ readToken(mode, stream, state);
	5901	+ stream.start = stream.pos;
	5902	+ }
	5903	+ }
	5904	+
	5905	+ // Convert a style as returned by a mode (either null, or a string
	5906	+ // containing one or more styles) to a CSS style. This is cached,
	5907	+ // and also looks for line-wide styles.
	5908	+ var styleToClassCache = {}, styleToClassCacheWithMode = {};
	5909	+ function interpretTokenStyle(style, options) {
	5910	+ if (!style || /^\s*$/.test(style)) return null;
	5911	+ var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
	5912	+ return cache[style] ||
	5913	+ (cache[style] = style.replace(/\S+/g, "cm-$&"));
	5914	+ }
	5915	+
	5916	+ // Render the DOM representation of the text of a line. Also builds
	5917	+ // up a 'line map', which points at the DOM nodes that represent
	5918	+ // specific stretches of text, and is used by the measuring code.
	5919	+ // The returned object contains the DOM node, this map, and
	5920	+ // information about line-wide styles that were set by the mode.
	5921	+ function buildLineContent(cm, lineView) {
	5922	+ // The padding-right forces the element to have a 'border', which
	5923	+ // is needed on Webkit to be able to get line-level bounding
	5924	+ // rectangles for it (in measureChar).
	5925	+ var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
	5926	+ var builder = {pre: elt("pre", [content]), content: content, col: 0, pos: 0, cm: cm};
	5927	+ lineView.measure = {};
	5928	+
	5929	+ // Iterate over the logical lines that make up this visual line.
	5930	+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
	5931	+ var line = i ? lineView.rest[i - 1] : lineView.line, order;
	5932	+ builder.pos = 0;
	5933	+ builder.addToken = buildToken;
	5934	+ // Optionally wire in some hacks into the token-rendering
	5935	+ // algorithm, to deal with browser quirks.
	5936	+ if ((ie || webkit) && cm.getOption("lineWrapping"))
	5937	+ builder.addToken = buildTokenSplitSpaces(builder.addToken);
	5938	+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
	5939	+ builder.addToken = buildTokenBadBidi(builder.addToken, order);
	5940	+ builder.map = [];
	5941	+ insertLineContent(line, builder, getLineStyles(cm, line));
	5942	+ if (line.styleClasses) {
	5943	+ if (line.styleClasses.bgClass)
	5944	+ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
	5945	+ if (line.styleClasses.textClass)
	5946	+ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
	5947	+ }
	5948	+
	5949	+ // Ensure at least a single node is present, for measuring.
	5950	+ if (builder.map.length == 0)
	5951	+ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
	5952	+
	5953	+ // Store the map and a cache object for the current logical line
	5954	+ if (i == 0) {
	5955	+ lineView.measure.map = builder.map;
	5956	+ lineView.measure.cache = {};
	5957	+ } else {
	5958	+ (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
	5959	+ (lineView.measure.caches || (lineView.measure.caches = [])).push({});
	5960	+ }
	5961	+ }
	5962	+
	5963	+ signal(cm, "renderLine", cm, lineView.line, builder.pre);
	5964	+ if (builder.pre.className)
	5965	+ builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
	5966	+ return builder;
	5967	+ }
	5968	+
	5969	+ function defaultSpecialCharPlaceholder(ch) {
	5970	+ var token = elt("span", "\u2022", "cm-invalidchar");
	5971	+ token.title = "\\u" + ch.charCodeAt(0).toString(16);
	5972	+ return token;
	5973	+ }
	5974	+
	5975	+ // Build up the DOM representation for a single token, and add it to
	5976	+ // the line map. Takes care to render special characters separately.
	5977	+ function buildToken(builder, text, style, startStyle, endStyle, title) {
	5978	+ if (!text) return;
	5979	+ var special = builder.cm.options.specialChars, mustWrap = false;
	5980	+ if (!special.test(text)) {
	5981	+ builder.col += text.length;
	5982	+ var content = document.createTextNode(text);
	5983	+ builder.map.push(builder.pos, builder.pos + text.length, content);
	5984	+ if (ie && ie_version < 9) mustWrap = true;
	5985	+ builder.pos += text.length;
	5986	+ } else {
	5987	+ var content = document.createDocumentFragment(), pos = 0;
	5988	+ while (true) {
	5989	+ special.lastIndex = pos;
	5990	+ var m = special.exec(text);
	5991	+ var skipped = m ? m.index - pos : text.length - pos;
	5992	+ if (skipped) {
	5993	+ var txt = document.createTextNode(text.slice(pos, pos + skipped));
	5994	+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
	5995	+ else content.appendChild(txt);
	5996	+ builder.map.push(builder.pos, builder.pos + skipped, txt);
	5997	+ builder.col += skipped;
	5998	+ builder.pos += skipped;
	5999	+ }
	6000	+ if (!m) break;
	6001	+ pos += skipped + 1;
	6002	+ if (m[0] == "\t") {
	6003	+ var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
	6004	+ var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
	6005	+ builder.col += tabWidth;
	6006	+ } else {
	6007	+ var txt = builder.cm.options.specialCharPlaceholder(m[0]);
	6008	+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
	6009	+ else content.appendChild(txt);
	6010	+ builder.col += 1;
	6011	+ }
	6012	+ builder.map.push(builder.pos, builder.pos + 1, txt);
	6013	+ builder.pos++;
	6014	+ }
	6015	+ }
	6016	+ if (style || startStyle || endStyle || mustWrap) {
	6017	+ var fullStyle = style || "";
	6018	+ if (startStyle) fullStyle += startStyle;
	6019	+ if (endStyle) fullStyle += endStyle;
	6020	+ var token = elt("span", [content], fullStyle);
	6021	+ if (title) token.title = title;
	6022	+ return builder.content.appendChild(token);
	6023	+ }
	6024	+ builder.content.appendChild(content);
	6025	+ }
	6026	+
	6027	+ function buildTokenSplitSpaces(inner) {
	6028	+ function split(old) {
	6029	+ var out = " ";
	6030	+ for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
	6031	+ out += " ";
	6032	+ return out;
	6033	+ }
	6034	+ return function(builder, text, style, startStyle, endStyle, title) {
	6035	+ inner(builder, text.replace(/ {3,}/g, split), style, startStyle, endStyle, title);
	6036	+ };
	6037	+ }
	6038	+
	6039	+ // Work around nonsense dimensions being reported for stretches of
	6040	+ // right-to-left text.
	6041	+ function buildTokenBadBidi(inner, order) {
	6042	+ return function(builder, text, style, startStyle, endStyle, title) {
	6043	+ style = style ? style + " cm-force-border" : "cm-force-border";
	6044	+ var start = builder.pos, end = start + text.length;
	6045	+ for (;;) {
	6046	+ // Find the part that overlaps with the start of this text
	6047	+ for (var i = 0; i < order.length; i++) {
	6048	+ var part = order[i];
	6049	+ if (part.to > start && part.from <= start) break;
	6050	+ }
	6051	+ if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title);
	6052	+ inner(builder, text.slice(0, part.to - start), style, startStyle, null, title);
	6053	+ startStyle = null;
	6054	+ text = text.slice(part.to - start);
	6055	+ start = part.to;
	6056	+ }
	6057	+ };
	6058	+ }
	6059	+
	6060	+ function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
	6061	+ var widget = !ignoreWidget && marker.widgetNode;
	6062	+ if (widget) {
	6063	+ builder.map.push(builder.pos, builder.pos + size, widget);
	6064	+ builder.content.appendChild(widget);
	6065	+ }
	6066	+ builder.pos += size;
	6067	+ }
	6068	+
	6069	+ // Outputs a number of spans to make up a line, taking highlighting
	6070	+ // and marked text into account.
	6071	+ function insertLineContent(line, builder, styles) {
	6072	+ var spans = line.markedSpans, allText = line.text, at = 0;
	6073	+ if (!spans) {
	6074	+ for (var i = 1; i < styles.length; i+=2)
	6075	+ builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
	6076	+ return;
	6077	+ }
	6078	+
	6079	+ var len = allText.length, pos = 0, i = 1, text = "", style;
	6080	+ var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
	6081	+ for (;;) {
	6082	+ if (nextChange == pos) { // Update current marker set
	6083	+ spanStyle = spanEndStyle = spanStartStyle = title = "";
	6084	+ collapsed = null; nextChange = Infinity;
	6085	+ var foundBookmarks = [];
	6086	+ for (var j = 0; j < spans.length; ++j) {
	6087	+ var sp = spans[j], m = sp.marker;
	6088	+ if (sp.from <= pos && (sp.to == null || sp.to > pos)) {
	6089	+ if (sp.to != null && nextChange > sp.to) { nextChange = sp.to; spanEndStyle = ""; }
	6090	+ if (m.className) spanStyle += " " + m.className;
	6091	+ if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
	6092	+ if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
	6093	+ if (m.title && !title) title = m.title;
	6094	+ if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
	6095	+ collapsed = sp;
	6096	+ } else if (sp.from > pos && nextChange > sp.from) {
	6097	+ nextChange = sp.from;
	6098	+ }
	6099	+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) foundBookmarks.push(m);
	6100	+ }
	6101	+ if (collapsed && (collapsed.from || 0) == pos) {
	6102	+ buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
	6103	+ collapsed.marker, collapsed.from == null);
	6104	+ if (collapsed.to == null) return;
	6105	+ }
	6106	+ if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)
	6107	+ buildCollapsedSpan(builder, 0, foundBookmarks[j]);
	6108	+ }
	6109	+ if (pos >= len) break;
	6110	+
	6111	+ var upto = Math.min(len, nextChange);
	6112	+ while (true) {
	6113	+ if (text) {
	6114	+ var end = pos + text.length;
	6115	+ if (!collapsed) {
	6116	+ var tokenText = end > upto ? text.slice(0, upto - pos) : text;
	6117	+ builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
	6118	+ spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title);
	6119	+ }
	6120	+ if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
	6121	+ pos = end;
	6122	+ spanStartStyle = "";
	6123	+ }
	6124	+ text = allText.slice(at, at = styles[i++]);
	6125	+ style = interpretTokenStyle(styles[i++], builder.cm.options);
	6126	+ }
	6127	+ }
	6128	+ }
	6129	+
	6130	+ // DOCUMENT DATA STRUCTURE
	6131	+
	6132	+ // By default, updates that start and end at the beginning of a line
	6133	+ // are treated specially, in order to make the association of line
	6134	+ // widgets and marker elements with the text behave more intuitive.
	6135	+ function isWholeLineUpdate(doc, change) {
	6136	+ return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
	6137	+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore);
	6138	+ }
	6139	+
	6140	+ // Perform a change on the document data structure.
	6141	+ function updateDoc(doc, change, markedSpans, estimateHeight) {
	6142	+ function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
	6143	+ function update(line, text, spans) {
	6144	+ updateLine(line, text, spans, estimateHeight);
	6145	+ signalLater(line, "change", line, change);
	6146	+ }
	6147	+
	6148	+ var from = change.from, to = change.to, text = change.text;
	6149	+ var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
	6150	+ var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
	6151	+
	6152	+ // Adjust the line structure
	6153	+ if (isWholeLineUpdate(doc, change)) {
	6154	+ // This is a whole-line replace. Treated specially to make
	6155	+ // sure line objects move the way they are supposed to.
	6156	+ for (var i = 0, added = []; i < text.length - 1; ++i)
	6157	+ added.push(new Line(text[i], spansFor(i), estimateHeight));
	6158	+ update(lastLine, lastLine.text, lastSpans);
	6159	+ if (nlines) doc.remove(from.line, nlines);
	6160	+ if (added.length) doc.insert(from.line, added);
	6161	+ } else if (firstLine == lastLine) {
	6162	+ if (text.length == 1) {
	6163	+ update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
	6164	+ } else {
	6165	+ for (var added = [], i = 1; i < text.length - 1; ++i)
	6166	+ added.push(new Line(text[i], spansFor(i), estimateHeight));
	6167	+ added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
	6168	+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
	6169	+ doc.insert(from.line + 1, added);
	6170	+ }
	6171	+ } else if (text.length == 1) {
	6172	+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
	6173	+ doc.remove(from.line + 1, nlines);
	6174	+ } else {
	6175	+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
	6176	+ update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
	6177	+ for (var i = 1, added = []; i < text.length - 1; ++i)
	6178	+ added.push(new Line(text[i], spansFor(i), estimateHeight));
	6179	+ if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
	6180	+ doc.insert(from.line + 1, added);
	6181	+ }
	6182	+
	6183	+ signalLater(doc, "change", doc, change);
	6184	+ }
	6185	+
	6186	+ // The document is represented as a BTree consisting of leaves, with
	6187	+ // chunk of lines in them, and branches, with up to ten leaves or
	6188	+ // other branch nodes below them. The top node is always a branch
	6189	+ // node, and is the document object itself (meaning it has
	6190	+ // additional methods and properties).
	6191	+ //
	6192	+ // All nodes have parent links. The tree is used both to go from
	6193	+ // line numbers to line objects, and to go from objects to numbers.
	6194	+ // It also indexes by height, and is used to convert between height
	6195	+ // and line object, and to find the total height of the document.
	6196	+ //
	6197	+ // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
	6198	+
	6199	+ function LeafChunk(lines) {
	6200	+ this.lines = lines;
	6201	+ this.parent = null;
	6202	+ for (var i = 0, height = 0; i < lines.length; ++i) {
	6203	+ lines[i].parent = this;
	6204	+ height += lines[i].height;
	6205	+ }
	6206	+ this.height = height;
	6207	+ }
	6208	+
	6209	+ LeafChunk.prototype = {
	6210	+ chunkSize: function() { return this.lines.length; },
	6211	+ // Remove the n lines at offset 'at'.
	6212	+ removeInner: function(at, n) {
	6213	+ for (var i = at, e = at + n; i < e; ++i) {
	6214	+ var line = this.lines[i];
	6215	+ this.height -= line.height;
	6216	+ cleanUpLine(line);
	6217	+ signalLater(line, "delete");
	6218	+ }
	6219	+ this.lines.splice(at, n);
	6220	+ },
	6221	+ // Helper used to collapse a small branch into a single leaf.
	6222	+ collapse: function(lines) {
	6223	+ lines.push.apply(lines, this.lines);
	6224	+ },
	6225	+ // Insert the given array of lines at offset 'at', count them as
	6226	+ // having the given height.
	6227	+ insertInner: function(at, lines, height) {
	6228	+ this.height += height;
	6229	+ this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
	6230	+ for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
	6231	+ },
	6232	+ // Used to iterate over a part of the tree.
	6233	+ iterN: function(at, n, op) {
	6234	+ for (var e = at + n; at < e; ++at)
	6235	+ if (op(this.lines[at])) return true;
	6236	+ }
	6237	+ };
	6238	+
	6239	+ function BranchChunk(children) {
	6240	+ this.children = children;
	6241	+ var size = 0, height = 0;
	6242	+ for (var i = 0; i < children.length; ++i) {
	6243	+ var ch = children[i];
	6244	+ size += ch.chunkSize(); height += ch.height;
	6245	+ ch.parent = this;
	6246	+ }
	6247	+ this.size = size;
	6248	+ this.height = height;
	6249	+ this.parent = null;
	6250	+ }
	6251	+
	6252	+ BranchChunk.prototype = {
	6253	+ chunkSize: function() { return this.size; },
	6254	+ removeInner: function(at, n) {
	6255	+ this.size -= n;
	6256	+ for (var i = 0; i < this.children.length; ++i) {
	6257	+ var child = this.children[i], sz = child.chunkSize();
	6258	+ if (at < sz) {
	6259	+ var rm = Math.min(n, sz - at), oldHeight = child.height;
	6260	+ child.removeInner(at, rm);
	6261	+ this.height -= oldHeight - child.height;
	6262	+ if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
	6263	+ if ((n -= rm) == 0) break;
	6264	+ at = 0;
	6265	+ } else at -= sz;
	6266	+ }
	6267	+ // If the result is smaller than 25 lines, ensure that it is a
	6268	+ // single leaf node.
	6269	+ if (this.size - n < 25 &&
	6270	+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
	6271	+ var lines = [];
	6272	+ this.collapse(lines);
	6273	+ this.children = [new LeafChunk(lines)];
	6274	+ this.children[0].parent = this;
	6275	+ }
	6276	+ },
	6277	+ collapse: function(lines) {
	6278	+ for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
	6279	+ },
	6280	+ insertInner: function(at, lines, height) {
	6281	+ this.size += lines.length;
	6282	+ this.height += height;
	6283	+ for (var i = 0; i < this.children.length; ++i) {
	6284	+ var child = this.children[i], sz = child.chunkSize();
	6285	+ if (at <= sz) {
	6286	+ child.insertInner(at, lines, height);
	6287	+ if (child.lines && child.lines.length > 50) {
	6288	+ while (child.lines.length > 50) {
	6289	+ var spilled = child.lines.splice(child.lines.length - 25, 25);
	6290	+ var newleaf = new LeafChunk(spilled);
	6291	+ child.height -= newleaf.height;
	6292	+ this.children.splice(i + 1, 0, newleaf);
	6293	+ newleaf.parent = this;
	6294	+ }
	6295	+ this.maybeSpill();
	6296	+ }
	6297	+ break;
	6298	+ }
	6299	+ at -= sz;
	6300	+ }
	6301	+ },
	6302	+ // When a node has grown, check whether it should be split.
	6303	+ maybeSpill: function() {
	6304	+ if (this.children.length <= 10) return;
	6305	+ var me = this;
	6306	+ do {
	6307	+ var spilled = me.children.splice(me.children.length - 5, 5);
	6308	+ var sibling = new BranchChunk(spilled);
	6309	+ if (!me.parent) { // Become the parent node
	6310	+ var copy = new BranchChunk(me.children);
	6311	+ copy.parent = me;
	6312	+ me.children = [copy, sibling];
	6313	+ me = copy;
	6314	+ } else {
	6315	+ me.size -= sibling.size;
	6316	+ me.height -= sibling.height;
	6317	+ var myIndex = indexOf(me.parent.children, me);
	6318	+ me.parent.children.splice(myIndex + 1, 0, sibling);
	6319	+ }
	6320	+ sibling.parent = me.parent;
	6321	+ } while (me.children.length > 10);
	6322	+ me.parent.maybeSpill();
	6323	+ },
	6324	+ iterN: function(at, n, op) {
	6325	+ for (var i = 0; i < this.children.length; ++i) {
	6326	+ var child = this.children[i], sz = child.chunkSize();
	6327	+ if (at < sz) {
	6328	+ var used = Math.min(n, sz - at);
	6329	+ if (child.iterN(at, used, op)) return true;
	6330	+ if ((n -= used) == 0) break;
	6331	+ at = 0;
	6332	+ } else at -= sz;
	6333	+ }
	6334	+ }
	6335	+ };
	6336	+
	6337	+ var nextDocId = 0;
	6338	+ var Doc = CodeMirror.Doc = function(text, mode, firstLine) {
	6339	+ if (!(this instanceof Doc)) return new Doc(text, mode, firstLine);
	6340	+ if (firstLine == null) firstLine = 0;
	6341	+
	6342	+ BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
	6343	+ this.first = firstLine;
	6344	+ this.scrollTop = this.scrollLeft = 0;
	6345	+ this.cantEdit = false;
	6346	+ this.cleanGeneration = 1;
	6347	+ this.frontier = firstLine;
	6348	+ var start = Pos(firstLine, 0);
	6349	+ this.sel = simpleSelection(start);
	6350	+ this.history = new History(null);
	6351	+ this.id = ++nextDocId;
	6352	+ this.modeOption = mode;
	6353	+
	6354	+ if (typeof text == "string") text = splitLines(text);
	6355	+ updateDoc(this, {from: start, to: start, text: text});
	6356	+ setSelection(this, simpleSelection(start), sel_dontScroll);
	6357	+ };
	6358	+
	6359	+ Doc.prototype = createObj(BranchChunk.prototype, {
	6360	+ constructor: Doc,
	6361	+ // Iterate over the document. Supports two forms -- with only one
	6362	+ // argument, it calls that for each line in the document. With
	6363	+ // three, it iterates over the range given by the first two (with
	6364	+ // the second being non-inclusive).
	6365	+ iter: function(from, to, op) {
	6366	+ if (op) this.iterN(from - this.first, to - from, op);
	6367	+ else this.iterN(this.first, this.first + this.size, from);
	6368	+ },
	6369	+
	6370	+ // Non-public interface for adding and removing lines.
	6371	+ insert: function(at, lines) {
	6372	+ var height = 0;
	6373	+ for (var i = 0; i < lines.length; ++i) height += lines[i].height;
	6374	+ this.insertInner(at - this.first, lines, height);
	6375	+ },
	6376	+ remove: function(at, n) { this.removeInner(at - this.first, n); },
	6377	+
	6378	+ // From here, the methods are part of the public interface. Most
	6379	+ // are also available from CodeMirror (editor) instances.
	6380	+
	6381	+ getValue: function(lineSep) {
	6382	+ var lines = getLines(this, this.first, this.first + this.size);
	6383	+ if (lineSep === false) return lines;
	6384	+ return lines.join(lineSep || "\n");
	6385	+ },
	6386	+ setValue: docMethodOp(function(code) {
	6387	+ var top = Pos(this.first, 0), last = this.first + this.size - 1;
	6388	+ makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
	6389	+ text: splitLines(code), origin: "setValue"}, true);
	6390	+ setSelection(this, simpleSelection(top));
	6391	+ }),
	6392	+ replaceRange: function(code, from, to, origin) {
	6393	+ from = clipPos(this, from);
	6394	+ to = to ? clipPos(this, to) : from;
	6395	+ replaceRange(this, code, from, to, origin);
	6396	+ },
	6397	+ getRange: function(from, to, lineSep) {
	6398	+ var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
	6399	+ if (lineSep === false) return lines;
	6400	+ return lines.join(lineSep || "\n");
	6401	+ },
	6402	+
	6403	+ getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
	6404	+
	6405	+ getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
	6406	+ getLineNumber: function(line) {return lineNo(line);},
	6407	+
	6408	+ getLineHandleVisualStart: function(line) {
	6409	+ if (typeof line == "number") line = getLine(this, line);
	6410	+ return visualLine(line);
	6411	+ },
	6412	+
	6413	+ lineCount: function() {return this.size;},
	6414	+ firstLine: function() {return this.first;},
	6415	+ lastLine: function() {return this.first + this.size - 1;},
	6416	+
	6417	+ clipPos: function(pos) {return clipPos(this, pos);},
	6418	+
	6419	+ getCursor: function(start) {
	6420	+ var range = this.sel.primary(), pos;
	6421	+ if (start == null || start == "head") pos = range.head;
	6422	+ else if (start == "anchor") pos = range.anchor;
	6423	+ else if (start == "end" || start == "to" || start === false) pos = range.to();
	6424	+ else pos = range.from();
	6425	+ return pos;
	6426	+ },
	6427	+ listSelections: function() { return this.sel.ranges; },
	6428	+ somethingSelected: function() {return this.sel.somethingSelected();},
	6429	+
	6430	+ setCursor: docMethodOp(function(line, ch, options) {
	6431	+ setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
	6432	+ }),
	6433	+ setSelection: docMethodOp(function(anchor, head, options) {
	6434	+ setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
	6435	+ }),
	6436	+ extendSelection: docMethodOp(function(head, other, options) {
	6437	+ extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
	6438	+ }),
	6439	+ extendSelections: docMethodOp(function(heads, options) {
	6440	+ extendSelections(this, clipPosArray(this, heads, options));
	6441	+ }),
	6442	+ extendSelectionsBy: docMethodOp(function(f, options) {
	6443	+ extendSelections(this, map(this.sel.ranges, f), options);
	6444	+ }),
	6445	+ setSelections: docMethodOp(function(ranges, primary, options) {
	6446	+ if (!ranges.length) return;
	6447	+ for (var i = 0, out = []; i < ranges.length; i++)
	6448	+ out[i] = new Range(clipPos(this, ranges[i].anchor),
	6449	+ clipPos(this, ranges[i].head));
	6450	+ if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
	6451	+ setSelection(this, normalizeSelection(out, primary), options);
	6452	+ }),
	6453	+ addSelection: docMethodOp(function(anchor, head, options) {
	6454	+ var ranges = this.sel.ranges.slice(0);
	6455	+ ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
	6456	+ setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
	6457	+ }),
	6458	+
	6459	+ getSelection: function(lineSep) {
	6460	+ var ranges = this.sel.ranges, lines;
	6461	+ for (var i = 0; i < ranges.length; i++) {
	6462	+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
	6463	+ lines = lines ? lines.concat(sel) : sel;
	6464	+ }
	6465	+ if (lineSep === false) return lines;
	6466	+ else return lines.join(lineSep || "\n");
	6467	+ },
	6468	+ getSelections: function(lineSep) {
	6469	+ var parts = [], ranges = this.sel.ranges;
	6470	+ for (var i = 0; i < ranges.length; i++) {
	6471	+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
	6472	+ if (lineSep !== false) sel = sel.join(lineSep || "\n");
	6473	+ parts[i] = sel;
	6474	+ }
	6475	+ return parts;
	6476	+ },
	6477	+ replaceSelection: function(code, collapse, origin) {
	6478	+ var dup = [];
	6479	+ for (var i = 0; i < this.sel.ranges.length; i++)
	6480	+ dup[i] = code;
	6481	+ this.replaceSelections(dup, collapse, origin || "+input");
	6482	+ },
	6483	+ replaceSelections: docMethodOp(function(code, collapse, origin) {
	6484	+ var changes = [], sel = this.sel;
	6485	+ for (var i = 0; i < sel.ranges.length; i++) {
	6486	+ var range = sel.ranges[i];
	6487	+ changes[i] = {from: range.from(), to: range.to(), text: splitLines(code[i]), origin: origin};
	6488	+ }
	6489	+ var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
	6490	+ for (var i = changes.length - 1; i >= 0; i--)
	6491	+ makeChange(this, changes[i]);
	6492	+ if (newSel) setSelectionReplaceHistory(this, newSel);
	6493	+ else if (this.cm) ensureCursorVisible(this.cm);
	6494	+ }),
	6495	+ undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
	6496	+ redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
	6497	+ undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
	6498	+ redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
	6499	+
	6500	+ setExtending: function(val) {this.extend = val;},
	6501	+ getExtending: function() {return this.extend;},
	6502	+
	6503	+ historySize: function() {
	6504	+ var hist = this.history, done = 0, undone = 0;
	6505	+ for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
	6506	+ for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
	6507	+ return {undo: done, redo: undone};
	6508	+ },
	6509	+ clearHistory: function() {this.history = new History(this.history.maxGeneration);},
	6510	+
	6511	+ markClean: function() {
	6512	+ this.cleanGeneration = this.changeGeneration(true);
	6513	+ },
	6514	+ changeGeneration: function(forceSplit) {
	6515	+ if (forceSplit)
	6516	+ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
	6517	+ return this.history.generation;
	6518	+ },
	6519	+ isClean: function (gen) {
	6520	+ return this.history.generation == (gen || this.cleanGeneration);
	6521	+ },
	6522	+
	6523	+ getHistory: function() {
	6524	+ return {done: copyHistoryArray(this.history.done),
	6525	+ undone: copyHistoryArray(this.history.undone)};
	6526	+ },
	6527	+ setHistory: function(histData) {
	6528	+ var hist = this.history = new History(this.history.maxGeneration);
	6529	+ hist.done = copyHistoryArray(histData.done.slice(0), null, true);
	6530	+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
	6531	+ },
	6532	+
	6533	+ addLineClass: docMethodOp(function(handle, where, cls) {
	6534	+ return changeLine(this, handle, "class", function(line) {
	6535	+ var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass";
	6536	+ if (!line[prop]) line[prop] = cls;
	6537	+ else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false;
	6538	+ else line[prop] += " " + cls;
	6539	+ return true;
	6540	+ });
	6541	+ }),
	6542	+ removeLineClass: docMethodOp(function(handle, where, cls) {
	6543	+ return changeLine(this, handle, "class", function(line) {
	6544	+ var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass";
	6545	+ var cur = line[prop];
	6546	+ if (!cur) return false;
	6547	+ else if (cls == null) line[prop] = null;
	6548	+ else {
	6549	+ var found = cur.match(new RegExp("(?:^|\\s+)" + cls + "(?:$|\\s+)"));
	6550	+ if (!found) return false;
	6551	+ var end = found.index + found[0].length;
	6552	+ line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
	6553	+ }
	6554	+ return true;
	6555	+ });
	6556	+ }),
	6557	+
	6558	+ markText: function(from, to, options) {
	6559	+ return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
	6560	+ },
	6561	+ setBookmark: function(pos, options) {
	6562	+ var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
	6563	+ insertLeft: options && options.insertLeft,
	6564	+ clearWhenEmpty: false, shared: options && options.shared};
	6565	+ pos = clipPos(this, pos);
	6566	+ return markText(this, pos, pos, realOpts, "bookmark");
	6567	+ },
	6568	+ findMarksAt: function(pos) {
	6569	+ pos = clipPos(this, pos);
	6570	+ var markers = [], spans = getLine(this, pos.line).markedSpans;
	6571	+ if (spans) for (var i = 0; i < spans.length; ++i) {
	6572	+ var span = spans[i];
	6573	+ if ((span.from == null || span.from <= pos.ch) &&
	6574	+ (span.to == null || span.to >= pos.ch))
	6575	+ markers.push(span.marker.parent || span.marker);
	6576	+ }
	6577	+ return markers;
	6578	+ },
	6579	+ findMarks: function(from, to, filter) {
	6580	+ from = clipPos(this, from); to = clipPos(this, to);
	6581	+ var found = [], lineNo = from.line;
	6582	+ this.iter(from.line, to.line + 1, function(line) {
	6583	+ var spans = line.markedSpans;
	6584	+ if (spans) for (var i = 0; i < spans.length; i++) {
	6585	+ var span = spans[i];
	6586	+ if (!(lineNo == from.line && from.ch > span.to ||
	6587	+ span.from == null && lineNo != from.line||
	6588	+ lineNo == to.line && span.from > to.ch) &&
	6589	+ (!filter || filter(span.marker)))
	6590	+ found.push(span.marker.parent || span.marker);
	6591	+ }
	6592	+ ++lineNo;
	6593	+ });
	6594	+ return found;
	6595	+ },
	6596	+ getAllMarks: function() {
	6597	+ var markers = [];
	6598	+ this.iter(function(line) {
	6599	+ var sps = line.markedSpans;
	6600	+ if (sps) for (var i = 0; i < sps.length; ++i)
	6601	+ if (sps[i].from != null) markers.push(sps[i].marker);
	6602	+ });
	6603	+ return markers;
	6604	+ },
	6605	+
	6606	+ posFromIndex: function(off) {
	6607	+ var ch, lineNo = this.first;
	6608	+ this.iter(function(line) {
	6609	+ var sz = line.text.length + 1;
	6610	+ if (sz > off) { ch = off; return true; }
	6611	+ off -= sz;
	6612	+ ++lineNo;
	6613	+ });
	6614	+ return clipPos(this, Pos(lineNo, ch));
	6615	+ },
	6616	+ indexFromPos: function (coords) {
	6617	+ coords = clipPos(this, coords);
	6618	+ var index = coords.ch;
	6619	+ if (coords.line < this.first || coords.ch < 0) return 0;
	6620	+ this.iter(this.first, coords.line, function (line) {
	6621	+ index += line.text.length + 1;
	6622	+ });
	6623	+ return index;
	6624	+ },
	6625	+
	6626	+ copy: function(copyHistory) {
	6627	+ var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first);
	6628	+ doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
	6629	+ doc.sel = this.sel;
	6630	+ doc.extend = false;
	6631	+ if (copyHistory) {
	6632	+ doc.history.undoDepth = this.history.undoDepth;
	6633	+ doc.setHistory(this.getHistory());
	6634	+ }
	6635	+ return doc;
	6636	+ },
	6637	+
	6638	+ linkedDoc: function(options) {
	6639	+ if (!options) options = {};
	6640	+ var from = this.first, to = this.first + this.size;
	6641	+ if (options.from != null && options.from > from) from = options.from;
	6642	+ if (options.to != null && options.to < to) to = options.to;
	6643	+ var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from);
	6644	+ if (options.sharedHist) copy.history = this.history;
	6645	+ (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
	6646	+ copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
	6647	+ copySharedMarkers(copy, findSharedMarkers(this));
	6648	+ return copy;
	6649	+ },
	6650	+ unlinkDoc: function(other) {
	6651	+ if (other instanceof CodeMirror) other = other.doc;
	6652	+ if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
	6653	+ var link = this.linked[i];
	6654	+ if (link.doc != other) continue;
	6655	+ this.linked.splice(i, 1);
	6656	+ other.unlinkDoc(this);
	6657	+ detachSharedMarkers(findSharedMarkers(this));
	6658	+ break;
	6659	+ }
	6660	+ // If the histories were shared, split them again
	6661	+ if (other.history == this.history) {
	6662	+ var splitIds = [other.id];
	6663	+ linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
	6664	+ other.history = new History(null);
	6665	+ other.history.done = copyHistoryArray(this.history.done, splitIds);
	6666	+ other.history.undone = copyHistoryArray(this.history.undone, splitIds);
	6667	+ }
	6668	+ },
	6669	+ iterLinkedDocs: function(f) {linkedDocs(this, f);},
	6670	+
	6671	+ getMode: function() {return this.mode;},
	6672	+ getEditor: function() {return this.cm;}
	6673	+ });
	6674	+
	6675	+ // Public alias.
	6676	+ Doc.prototype.eachLine = Doc.prototype.iter;
	6677	+
	6678	+ // Set up methods on CodeMirror's prototype to redirect to the editor's document.
	6679	+ var dontDelegate = "iter insert remove copy getEditor".split(" ");
	6680	+ for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
	6681	+ CodeMirror.prototype[prop] = (function(method) {
	6682	+ return function() {return method.apply(this.doc, arguments);};
	6683	+ })(Doc.prototype[prop]);
	6684	+
	6685	+ eventMixin(Doc);
	6686	+
	6687	+ // Call f for all linked documents.
	6688	+ function linkedDocs(doc, f, sharedHistOnly) {
	6689	+ function propagate(doc, skip, sharedHist) {
	6690	+ if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
	6691	+ var rel = doc.linked[i];
	6692	+ if (rel.doc == skip) continue;
	6693	+ var shared = sharedHist && rel.sharedHist;
	6694	+ if (sharedHistOnly && !shared) continue;
	6695	+ f(rel.doc, shared);
	6696	+ propagate(rel.doc, doc, shared);
	6697	+ }
	6698	+ }
	6699	+ propagate(doc, null, true);
	6700	+ }
	6701	+
	6702	+ // Attach a document to an editor.
	6703	+ function attachDoc(cm, doc) {
	6704	+ if (doc.cm) throw new Error("This document is already in use.");
	6705	+ cm.doc = doc;
	6706	+ doc.cm = cm;
	6707	+ estimateLineHeights(cm);
	6708	+ loadMode(cm);
	6709	+ if (!cm.options.lineWrapping) findMaxLine(cm);
	6710	+ cm.options.mode = doc.modeOption;
	6711	+ regChange(cm);
	6712	+ }
	6713	+
	6714	+ // LINE UTILITIES
	6715	+
	6716	+ // Find the line object corresponding to the given line number.
	6717	+ function getLine(doc, n) {
	6718	+ n -= doc.first;
	6719	+ if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
	6720	+ for (var chunk = doc; !chunk.lines;) {
	6721	+ for (var i = 0;; ++i) {
	6722	+ var child = chunk.children[i], sz = child.chunkSize();
	6723	+ if (n < sz) { chunk = child; break; }
	6724	+ n -= sz;
	6725	+ }
	6726	+ }
	6727	+ return chunk.lines[n];
	6728	+ }
	6729	+
	6730	+ // Get the part of a document between two positions, as an array of
	6731	+ // strings.
	6732	+ function getBetween(doc, start, end) {
	6733	+ var out = [], n = start.line;
	6734	+ doc.iter(start.line, end.line + 1, function(line) {
	6735	+ var text = line.text;
	6736	+ if (n == end.line) text = text.slice(0, end.ch);
	6737	+ if (n == start.line) text = text.slice(start.ch);
	6738	+ out.push(text);
	6739	+ ++n;
	6740	+ });
	6741	+ return out;
	6742	+ }
	6743	+ // Get the lines between from and to, as array of strings.
	6744	+ function getLines(doc, from, to) {
	6745	+ var out = [];
	6746	+ doc.iter(from, to, function(line) { out.push(line.text); });
	6747	+ return out;
	6748	+ }
	6749	+
	6750	+ // Update the height of a line, propagating the height change
	6751	+ // upwards to parent nodes.
	6752	+ function updateLineHeight(line, height) {
	6753	+ var diff = height - line.height;
	6754	+ if (diff) for (var n = line; n; n = n.parent) n.height += diff;
	6755	+ }
	6756	+
	6757	+ // Given a line object, find its line number by walking up through
	6758	+ // its parent links.
	6759	+ function lineNo(line) {
	6760	+ if (line.parent == null) return null;
	6761	+ var cur = line.parent, no = indexOf(cur.lines, line);
	6762	+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
	6763	+ for (var i = 0;; ++i) {
	6764	+ if (chunk.children[i] == cur) break;
	6765	+ no += chunk.children[i].chunkSize();
	6766	+ }
	6767	+ }
	6768	+ return no + cur.first;
	6769	+ }
	6770	+
	6771	+ // Find the line at the given vertical position, using the height
	6772	+ // information in the document tree.
	6773	+ function lineAtHeight(chunk, h) {
	6774	+ var n = chunk.first;
	6775	+ outer: do {
	6776	+ for (var i = 0; i < chunk.children.length; ++i) {
	6777	+ var child = chunk.children[i], ch = child.height;
	6778	+ if (h < ch) { chunk = child; continue outer; }
	6779	+ h -= ch;
	6780	+ n += child.chunkSize();
	6781	+ }
	6782	+ return n;
	6783	+ } while (!chunk.lines);
	6784	+ for (var i = 0; i < chunk.lines.length; ++i) {
	6785	+ var line = chunk.lines[i], lh = line.height;
	6786	+ if (h < lh) break;
	6787	+ h -= lh;
	6788	+ }
	6789	+ return n + i;
	6790	+ }
	6791	+
	6792	+
	6793	+ // Find the height above the given line.
	6794	+ function heightAtLine(lineObj) {
	6795	+ lineObj = visualLine(lineObj);
	6796	+
	6797	+ var h = 0, chunk = lineObj.parent;
	6798	+ for (var i = 0; i < chunk.lines.length; ++i) {
	6799	+ var line = chunk.lines[i];
	6800	+ if (line == lineObj) break;
	6801	+ else h += line.height;
	6802	+ }
	6803	+ for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
	6804	+ for (var i = 0; i < p.children.length; ++i) {
	6805	+ var cur = p.children[i];
	6806	+ if (cur == chunk) break;
	6807	+ else h += cur.height;
	6808	+ }
	6809	+ }
	6810	+ return h;
	6811	+ }
	6812	+
	6813	+ // Get the bidi ordering for the given line (and cache it). Returns
	6814	+ // false for lines that are fully left-to-right, and an array of
	6815	+ // BidiSpan objects otherwise.
	6816	+ function getOrder(line) {
	6817	+ var order = line.order;
	6818	+ if (order == null) order = line.order = bidiOrdering(line.text);
	6819	+ return order;
	6820	+ }
	6821	+
	6822	+ // HISTORY
	6823	+
	6824	+ function History(startGen) {
	6825	+ // Arrays of change events and selections. Doing something adds an
	6826	+ // event to done and clears undo. Undoing moves events from done
	6827	+ // to undone, redoing moves them in the other direction.
	6828	+ this.done = []; this.undone = [];
	6829	+ this.undoDepth = Infinity;
	6830	+ // Used to track when changes can be merged into a single undo
	6831	+ // event
	6832	+ this.lastModTime = this.lastSelTime = 0;
	6833	+ this.lastOp = this.lastSelOp = null;
	6834	+ this.lastOrigin = this.lastSelOrigin = null;
	6835	+ // Used by the isClean() method
	6836	+ this.generation = this.maxGeneration = startGen || 1;
	6837	+ }
	6838	+
	6839	+ // Create a history change event from an updateDoc-style change
	6840	+ // object.
	6841	+ function historyChangeFromChange(doc, change) {
	6842	+ var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
	6843	+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
	6844	+ linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
	6845	+ return histChange;
	6846	+ }
	6847	+
	6848	+ // Pop all selection events off the end of a history array. Stop at
	6849	+ // a change event.
	6850	+ function clearSelectionEvents(array) {
	6851	+ while (array.length) {
	6852	+ var last = lst(array);
	6853	+ if (last.ranges) array.pop();
	6854	+ else break;
	6855	+ }
	6856	+ }
	6857	+
	6858	+ // Find the top change event in the history. Pop off selection
	6859	+ // events that are in the way.
	6860	+ function lastChangeEvent(hist, force) {
	6861	+ if (force) {
	6862	+ clearSelectionEvents(hist.done);
	6863	+ return lst(hist.done);
	6864	+ } else if (hist.done.length && !lst(hist.done).ranges) {
	6865	+ return lst(hist.done);
	6866	+ } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
	6867	+ hist.done.pop();
	6868	+ return lst(hist.done);
	6869	+ }
	6870	+ }
	6871	+
	6872	+ // Register a change in the history. Merges changes that are within
	6873	+ // a single operation, ore are close together with an origin that
	6874	+ // allows merging (starting with "+") into a single event.
	6875	+ function addChangeToHistory(doc, change, selAfter, opId) {
	6876	+ var hist = doc.history;
	6877	+ hist.undone.length = 0;
	6878	+ var time = +new Date, cur;
	6879	+
	6880	+ if ((hist.lastOp == opId ||
	6881	+ hist.lastOrigin == change.origin && change.origin &&
	6882	+ ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
	6883	+ change.origin.charAt(0) == "*")) &&
	6884	+ (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
	6885	+ // Merge this change into the last event
	6886	+ var last = lst(cur.changes);
	6887	+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
	6888	+ // Optimized case for simple insertion -- don't want to add
	6889	+ // new changesets for every character typed
	6890	+ last.to = changeEnd(change);
	6891	+ } else {
	6892	+ // Add new sub-event
	6893	+ cur.changes.push(historyChangeFromChange(doc, change));
	6894	+ }
	6895	+ } else {
	6896	+ // Can not be merged, start a new event.
	6897	+ var before = lst(hist.done);
	6898	+ if (!before || !before.ranges)
	6899	+ pushSelectionToHistory(doc.sel, hist.done);
	6900	+ cur = {changes: [historyChangeFromChange(doc, change)],
	6901	+ generation: hist.generation};
	6902	+ hist.done.push(cur);
	6903	+ while (hist.done.length > hist.undoDepth) {
	6904	+ hist.done.shift();
	6905	+ if (!hist.done[0].ranges) hist.done.shift();
	6906	+ }
	6907	+ }
	6908	+ hist.done.push(selAfter);
	6909	+ hist.generation = ++hist.maxGeneration;
	6910	+ hist.lastModTime = hist.lastSelTime = time;
	6911	+ hist.lastOp = hist.lastSelOp = opId;
	6912	+ hist.lastOrigin = hist.lastSelOrigin = change.origin;
	6913	+
	6914	+ if (!last) signal(doc, "historyAdded");
	6915	+ }
	6916	+
	6917	+ function selectionEventCanBeMerged(doc, origin, prev, sel) {
	6918	+ var ch = origin.charAt(0);
	6919	+ return ch == "*" ||
	6920	+ ch == "+" &&
	6921	+ prev.ranges.length == sel.ranges.length &&
	6922	+ prev.somethingSelected() == sel.somethingSelected() &&
	6923	+ new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
	6924	+ }
	6925	+
	6926	+ // Called whenever the selection changes, sets the new selection as
	6927	+ // the pending selection in the history, and pushes the old pending
	6928	+ // selection into the 'done' array when it was significantly
	6929	+ // different (in number of selected ranges, emptiness, or time).
	6930	+ function addSelectionToHistory(doc, sel, opId, options) {
	6931	+ var hist = doc.history, origin = options && options.origin;
	6932	+
	6933	+ // A new event is started when the previous origin does not match
	6934	+ // the current, or the origins don't allow matching. Origins
	6935	+ // starting with * are always merged, those starting with + are
	6936	+ // merged when similar and close together in time.
	6937	+ if (opId == hist.lastSelOp ||
	6938	+ (origin && hist.lastSelOrigin == origin &&
	6939	+ (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
	6940	+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
	6941	+ hist.done[hist.done.length - 1] = sel;
	6942	+ else
	6943	+ pushSelectionToHistory(sel, hist.done);
	6944	+
	6945	+ hist.lastSelTime = +new Date;
	6946	+ hist.lastSelOrigin = origin;
	6947	+ hist.lastSelOp = opId;
	6948	+ if (options && options.clearRedo !== false)
	6949	+ clearSelectionEvents(hist.undone);
	6950	+ }
	6951	+
	6952	+ function pushSelectionToHistory(sel, dest) {
	6953	+ var top = lst(dest);
	6954	+ if (!(top && top.ranges && top.equals(sel)))
	6955	+ dest.push(sel);
	6956	+ }
	6957	+
	6958	+ // Used to store marked span information in the history.
	6959	+ function attachLocalSpans(doc, change, from, to) {
	6960	+ var existing = change["spans_" + doc.id], n = 0;
	6961	+ doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
	6962	+ if (line.markedSpans)
	6963	+ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
	6964	+ ++n;
	6965	+ });
	6966	+ }
	6967	+
	6968	+ // When un/re-doing restores text containing marked spans, those
	6969	+ // that have been explicitly cleared should not be restored.
	6970	+ function removeClearedSpans(spans) {
	6971	+ if (!spans) return null;
	6972	+ for (var i = 0, out; i < spans.length; ++i) {
	6973	+ if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
	6974	+ else if (out) out.push(spans[i]);
	6975	+ }
	6976	+ return !out ? spans : out.length ? out : null;
	6977	+ }
	6978	+
	6979	+ // Retrieve and filter the old marked spans stored in a change event.
	6980	+ function getOldSpans(doc, change) {
	6981	+ var found = change["spans_" + doc.id];
	6982	+ if (!found) return null;
	6983	+ for (var i = 0, nw = []; i < change.text.length; ++i)
	6984	+ nw.push(removeClearedSpans(found[i]));
	6985	+ return nw;
	6986	+ }
	6987	+
	6988	+ // Used both to provide a JSON-safe object in .getHistory, and, when
	6989	+ // detaching a document, to split the history in two
	6990	+ function copyHistoryArray(events, newGroup, instantiateSel) {
	6991	+ for (var i = 0, copy = []; i < events.length; ++i) {
	6992	+ var event = events[i];
	6993	+ if (event.ranges) {
	6994	+ copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
	6995	+ continue;
	6996	+ }
	6997	+ var changes = event.changes, newChanges = [];
	6998	+ copy.push({changes: newChanges});
	6999	+ for (var j = 0; j < changes.length; ++j) {
	7000	+ var change = changes[j], m;
	7001	+ newChanges.push({from: change.from, to: change.to, text: change.text});
	7002	+ if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
	7003	+ if (indexOf(newGroup, Number(m[1])) > -1) {
	7004	+ lst(newChanges)[prop] = change[prop];
	7005	+ delete change[prop];
	7006	+ }
	7007	+ }
	7008	+ }
	7009	+ }
	7010	+ return copy;
	7011	+ }
	7012	+
	7013	+ // Rebasing/resetting history to deal with externally-sourced changes
	7014	+
	7015	+ function rebaseHistSelSingle(pos, from, to, diff) {
	7016	+ if (to < pos.line) {
	7017	+ pos.line += diff;
	7018	+ } else if (from < pos.line) {
	7019	+ pos.line = from;
	7020	+ pos.ch = 0;
	7021	+ }
	7022	+ }
	7023	+
	7024	+ // Tries to rebase an array of history events given a change in the
	7025	+ // document. If the change touches the same lines as the event, the
	7026	+ // event, and everything 'behind' it, is discarded. If the change is
	7027	+ // before the event, the event's positions are updated. Uses a
	7028	+ // copy-on-write scheme for the positions, to avoid having to
	7029	+ // reallocate them all on every rebase, but also avoid problems with
	7030	+ // shared position objects being unsafely updated.
	7031	+ function rebaseHistArray(array, from, to, diff) {
	7032	+ for (var i = 0; i < array.length; ++i) {
	7033	+ var sub = array[i], ok = true;
	7034	+ if (sub.ranges) {
	7035	+ if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
	7036	+ for (var j = 0; j < sub.ranges.length; j++) {
	7037	+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
	7038	+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
	7039	+ }
	7040	+ continue;
	7041	+ }
	7042	+ for (var j = 0; j < sub.changes.length; ++j) {
	7043	+ var cur = sub.changes[j];
	7044	+ if (to < cur.from.line) {
	7045	+ cur.from = Pos(cur.from.line + diff, cur.from.ch);
	7046	+ cur.to = Pos(cur.to.line + diff, cur.to.ch);
	7047	+ } else if (from <= cur.to.line) {
	7048	+ ok = false;
	7049	+ break;
	7050	+ }
	7051	+ }
	7052	+ if (!ok) {
	7053	+ array.splice(0, i + 1);
	7054	+ i = 0;
	7055	+ }
	7056	+ }
	7057	+ }
	7058	+
	7059	+ function rebaseHist(hist, change) {
	7060	+ var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
	7061	+ rebaseHistArray(hist.done, from, to, diff);
	7062	+ rebaseHistArray(hist.undone, from, to, diff);
	7063	+ }
	7064	+
	7065	+ // EVENT UTILITIES
	7066	+
	7067	+ // Due to the fact that we still support jurassic IE versions, some
	7068	+ // compatibility wrappers are needed.
	7069	+
	7070	+ var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
	7071	+ if (e.preventDefault) e.preventDefault();
	7072	+ else e.returnValue = false;
	7073	+ };
	7074	+ var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
	7075	+ if (e.stopPropagation) e.stopPropagation();
	7076	+ else e.cancelBubble = true;
	7077	+ };
	7078	+ function e_defaultPrevented(e) {
	7079	+ return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
	7080	+ }
	7081	+ var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
	7082	+
	7083	+ function e_target(e) {return e.target || e.srcElement;}
	7084	+ function e_button(e) {
	7085	+ var b = e.which;
	7086	+ if (b == null) {
	7087	+ if (e.button & 1) b = 1;
	7088	+ else if (e.button & 2) b = 3;
	7089	+ else if (e.button & 4) b = 2;
	7090	+ }
	7091	+ if (mac && e.ctrlKey && b == 1) b = 3;
	7092	+ return b;
	7093	+ }
	7094	+
	7095	+ // EVENT HANDLING
	7096	+
	7097	+ // Lightweight event framework. on/off also work on DOM nodes,
	7098	+ // registering native DOM handlers.
	7099	+
	7100	+ var on = CodeMirror.on = function(emitter, type, f) {
	7101	+ if (emitter.addEventListener)
	7102	+ emitter.addEventListener(type, f, false);
	7103	+ else if (emitter.attachEvent)
	7104	+ emitter.attachEvent("on" + type, f);
	7105	+ else {
	7106	+ var map = emitter._handlers || (emitter._handlers = {});
	7107	+ var arr = map[type] || (map[type] = []);
	7108	+ arr.push(f);
	7109	+ }
	7110	+ };
	7111	+
	7112	+ var off = CodeMirror.off = function(emitter, type, f) {
	7113	+ if (emitter.removeEventListener)
	7114	+ emitter.removeEventListener(type, f, false);
	7115	+ else if (emitter.detachEvent)
	7116	+ emitter.detachEvent("on" + type, f);
	7117	+ else {
	7118	+ var arr = emitter._handlers && emitter._handlers[type];
	7119	+ if (!arr) return;
	7120	+ for (var i = 0; i < arr.length; ++i)
	7121	+ if (arr[i] == f) { arr.splice(i, 1); break; }
	7122	+ }
	7123	+ };
	7124	+
	7125	+ var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
	7126	+ var arr = emitter._handlers && emitter._handlers[type];
	7127	+ if (!arr) return;
	7128	+ var args = Array.prototype.slice.call(arguments, 2);
	7129	+ for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
	7130	+ };
	7131	+
	7132	+ var orphanDelayedCallbacks = null;
	7133	+
	7134	+ // Often, we want to signal events at a point where we are in the
	7135	+ // middle of some work, but don't want the handler to start calling
	7136	+ // other methods on the editor, which might be in an inconsistent
	7137	+ // state or simply not expect any other events to happen.
	7138	+ // signalLater looks whether there are any handlers, and schedules
	7139	+ // them to be executed when the last operation ends, or, if no
	7140	+ // operation is active, when a timeout fires.
	7141	+ function signalLater(emitter, type /*, values...*/) {
	7142	+ var arr = emitter._handlers && emitter._handlers[type];
	7143	+ if (!arr) return;
	7144	+ var args = Array.prototype.slice.call(arguments, 2), list;
	7145	+ if (operationGroup) {
	7146	+ list = operationGroup.delayedCallbacks;
	7147	+ } else if (orphanDelayedCallbacks) {
	7148	+ list = orphanDelayedCallbacks;
	7149	+ } else {
	7150	+ list = orphanDelayedCallbacks = [];
	7151	+ setTimeout(fireOrphanDelayed, 0);
	7152	+ }
	7153	+ function bnd(f) {return function(){f.apply(null, args);};};
	7154	+ for (var i = 0; i < arr.length; ++i)
	7155	+ list.push(bnd(arr[i]));
	7156	+ }
	7157	+
	7158	+ function fireOrphanDelayed() {
	7159	+ var delayed = orphanDelayedCallbacks;
	7160	+ orphanDelayedCallbacks = null;
	7161	+ for (var i = 0; i < delayed.length; ++i) delayed[i]();
	7162	+ }
	7163	+
	7164	+ // The DOM events that CodeMirror handles can be overridden by
	7165	+ // registering a (non-DOM) handler on the editor for the event name,
	7166	+ // and preventDefault-ing the event in that handler.
	7167	+ function signalDOMEvent(cm, e, override) {
	7168	+ signal(cm, override || e.type, cm, e);
	7169	+ return e_defaultPrevented(e) || e.codemirrorIgnore;
	7170	+ }
	7171	+
	7172	+ function signalCursorActivity(cm) {
	7173	+ var arr = cm._handlers && cm._handlers.cursorActivity;
	7174	+ if (!arr) return;
	7175	+ var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
	7176	+ for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
	7177	+ set.push(arr[i]);
	7178	+ }
	7179	+
	7180	+ function hasHandler(emitter, type) {
	7181	+ var arr = emitter._handlers && emitter._handlers[type];
	7182	+ return arr && arr.length > 0;
	7183	+ }
	7184	+
	7185	+ // Add on and off methods to a constructor's prototype, to make
	7186	+ // registering events on such objects more convenient.
	7187	+ function eventMixin(ctor) {
	7188	+ ctor.prototype.on = function(type, f) {on(this, type, f);};
	7189	+ ctor.prototype.off = function(type, f) {off(this, type, f);};
	7190	+ }
	7191	+
	7192	+ // MISC UTILITIES
	7193	+
	7194	+ // Number of pixels added to scroller and sizer to hide scrollbar
	7195	+ var scrollerCutOff = 30;
	7196	+
	7197	+ // Returned or thrown by various protocols to signal 'I'm not
	7198	+ // handling this'.
	7199	+ var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
	7200	+
	7201	+ // Reused option objects for setSelection & friends
	7202	+ var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
	7203	+
	7204	+ function Delayed() {this.id = null;}
	7205	+ Delayed.prototype.set = function(ms, f) {
	7206	+ clearTimeout(this.id);
	7207	+ this.id = setTimeout(f, ms);
	7208	+ };
	7209	+
	7210	+ // Counts the column offset in a string, taking tabs into account.
	7211	+ // Used mostly to find indentation.
	7212	+ var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
	7213	+ if (end == null) {
	7214	+ end = string.search(/[^\s\u00a0]/);
	7215	+ if (end == -1) end = string.length;
	7216	+ }
	7217	+ for (var i = startIndex || 0, n = startValue || 0;;) {
	7218	+ var nextTab = string.indexOf("\t", i);
	7219	+ if (nextTab < 0 || nextTab >= end)
	7220	+ return n + (end - i);
	7221	+ n += nextTab - i;
	7222	+ n += tabSize - (n % tabSize);
	7223	+ i = nextTab + 1;
	7224	+ }
	7225	+ };
	7226	+
	7227	+ // The inverse of countColumn -- find the offset that corresponds to
	7228	+ // a particular column.
	7229	+ function findColumn(string, goal, tabSize) {
	7230	+ for (var pos = 0, col = 0;;) {
	7231	+ var nextTab = string.indexOf("\t", pos);
	7232	+ if (nextTab == -1) nextTab = string.length;
	7233	+ var skipped = nextTab - pos;
	7234	+ if (nextTab == string.length || col + skipped >= goal)
	7235	+ return pos + Math.min(skipped, goal - col);
	7236	+ col += nextTab - pos;
	7237	+ col += tabSize - (col % tabSize);
	7238	+ pos = nextTab + 1;
	7239	+ if (col >= goal) return pos;
	7240	+ }
	7241	+ }
	7242	+
	7243	+ var spaceStrs = [""];
	7244	+ function spaceStr(n) {
	7245	+ while (spaceStrs.length <= n)
	7246	+ spaceStrs.push(lst(spaceStrs) + " ");
	7247	+ return spaceStrs[n];
	7248	+ }
	7249	+
	7250	+ function lst(arr) { return arr[arr.length-1]; }
	7251	+
	7252	+ var selectInput = function(node) { node.select(); };
	7253	+ if (ios) // Mobile Safari apparently has a bug where select() is broken.
	7254	+ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
	7255	+ else if (ie) // Suppress mysterious IE10 errors
	7256	+ selectInput = function(node) { try { node.select(); } catch(_e) {} };
	7257	+
	7258	+ function indexOf(array, elt) {
	7259	+ for (var i = 0; i < array.length; ++i)
	7260	+ if (array[i] == elt) return i;
	7261	+ return -1;
	7262	+ }
	7263	+ if ([].indexOf) indexOf = function(array, elt) { return array.indexOf(elt); };
	7264	+ function map(array, f) {
	7265	+ var out = [];
	7266	+ for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
	7267	+ return out;
	7268	+ }
	7269	+ if ([].map) map = function(array, f) { return array.map(f); };
	7270	+
	7271	+ function createObj(base, props) {
	7272	+ var inst;
	7273	+ if (Object.create) {
	7274	+ inst = Object.create(base);
	7275	+ } else {
	7276	+ var ctor = function() {};
	7277	+ ctor.prototype = base;
	7278	+ inst = new ctor();
	7279	+ }
	7280	+ if (props) copyObj(props, inst);
	7281	+ return inst;
	7282	+ };
	7283	+
	7284	+ function copyObj(obj, target, overwrite) {
	7285	+ if (!target) target = {};
	7286	+ for (var prop in obj)
	7287	+ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
	7288	+ target[prop] = obj[prop];
	7289	+ return target;
	7290	+ }
	7291	+
	7292	+ function bind(f) {
	7293	+ var args = Array.prototype.slice.call(arguments, 1);
	7294	+ return function(){return f.apply(null, args);};
	7295	+ }
	7296	+
	7297	+ var nonASCIISingleCaseWordChar = /[\u00df\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
	7298	+ var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
	7299	+ return /\w/.test(ch) || ch > "\x80" &&
	7300	+ (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
	7301	+ };
	7302	+ function isWordChar(ch, helper) {
	7303	+ if (!helper) return isWordCharBasic(ch);
	7304	+ if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
	7305	+ return helper.test(ch);
	7306	+ }
	7307	+
	7308	+ function isEmpty(obj) {
	7309	+ for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
	7310	+ return true;
	7311	+ }
	7312	+
	7313	+ // Extending unicode characters. A series of a non-extending char +
	7314	+ // any number of extending chars is treated as a single unit as far
	7315	+ // as editing and measuring is concerned. This is not fully correct,
	7316	+ // since some scripts/fonts/browsers also treat other configurations
	7317	+ // of code points as a group.
	7318	+ 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]/;
	7319	+ function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
	7320	+
	7321	+ // DOM UTILITIES
	7322	+
	7323	+ function elt(tag, content, className, style) {
	7324	+ var e = document.createElement(tag);
	7325	+ if (className) e.className = className;
	7326	+ if (style) e.style.cssText = style;
	7327	+ if (typeof content == "string") e.appendChild(document.createTextNode(content));
	7328	+ else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
	7329	+ return e;
	7330	+ }
	7331	+
	7332	+ var range;
	7333	+ if (document.createRange) range = function(node, start, end) {
	7334	+ var r = document.createRange();
	7335	+ r.setEnd(node, end);
	7336	+ r.setStart(node, start);
	7337	+ return r;
	7338	+ };
	7339	+ else range = function(node, start, end) {
	7340	+ var r = document.body.createTextRange();
	7341	+ r.moveToElementText(node.parentNode);
	7342	+ r.collapse(true);
	7343	+ r.moveEnd("character", end);
	7344	+ r.moveStart("character", start);
	7345	+ return r;
	7346	+ };
	7347	+
	7348	+ function removeChildren(e) {
	7349	+ for (var count = e.childNodes.length; count > 0; --count)
	7350	+ e.removeChild(e.firstChild);
	7351	+ return e;
	7352	+ }
	7353	+
	7354	+ function removeChildrenAndAdd(parent, e) {
	7355	+ return removeChildren(parent).appendChild(e);
	7356	+ }
	7357	+
	7358	+ function contains(parent, child) {
	7359	+ if (parent.contains)
	7360	+ return parent.contains(child);
	7361	+ while (child = child.parentNode)
	7362	+ if (child == parent) return true;
	7363	+ }
	7364	+
	7365	+ function activeElt() { return document.activeElement; }
	7366	+ // Older versions of IE throws unspecified error when touching
	7367	+ // document.activeElement in some cases (during loading, in iframe)
	7368	+ if (ie && ie_version < 11) activeElt = function() {
	7369	+ try { return document.activeElement; }
	7370	+ catch(e) { return document.body; }
	7371	+ };
	7372	+
	7373	+ function classTest(cls) { return new RegExp("\\b" + cls + "\\b\\s*"); }
	7374	+ function rmClass(node, cls) {
	7375	+ var test = classTest(cls);
	7376	+ if (test.test(node.className)) node.className = node.className.replace(test, "");
	7377	+ }
	7378	+ function addClass(node, cls) {
	7379	+ if (!classTest(cls).test(node.className)) node.className += " " + cls;
	7380	+ }
	7381	+ function joinClasses(a, b) {
	7382	+ var as = a.split(" ");
	7383	+ for (var i = 0; i < as.length; i++)
	7384	+ if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
	7385	+ return b;
	7386	+ }
	7387	+
	7388	+ // WINDOW-WIDE EVENTS
	7389	+
	7390	+ // These must be handled carefully, because naively registering a
	7391	+ // handler for each editor will cause the editors to never be
	7392	+ // garbage collected.
	7393	+
	7394	+ function forEachCodeMirror(f) {
	7395	+ if (!document.body.getElementsByClassName) return;
	7396	+ var byClass = document.body.getElementsByClassName("CodeMirror");
	7397	+ for (var i = 0; i < byClass.length; i++) {
	7398	+ var cm = byClass[i].CodeMirror;
	7399	+ if (cm) f(cm);
	7400	+ }
	7401	+ }
	7402	+
	7403	+ var globalsRegistered = false;
	7404	+ function ensureGlobalHandlers() {
	7405	+ if (globalsRegistered) return;
	7406	+ registerGlobalHandlers();
	7407	+ globalsRegistered = true;
	7408	+ }
	7409	+ function registerGlobalHandlers() {
	7410	+ // When the window resizes, we need to refresh active editors.
	7411	+ var resizeTimer;
	7412	+ on(window, "resize", function() {
	7413	+ if (resizeTimer == null) resizeTimer = setTimeout(function() {
	7414	+ resizeTimer = null;
	7415	+ knownScrollbarWidth = null;
	7416	+ forEachCodeMirror(onResize);
	7417	+ }, 100);
	7418	+ });
	7419	+ // When the window loses focus, we want to show the editor as blurred
	7420	+ on(window, "blur", function() {
	7421	+ forEachCodeMirror(onBlur);
	7422	+ });
	7423	+ }
	7424	+
	7425	+ // FEATURE DETECTION
	7426	+
	7427	+ // Detect drag-and-drop
	7428	+ var dragAndDrop = function() {
	7429	+ // There is *some* kind of drag-and-drop support in IE6-8, but I
	7430	+ // couldn't get it to work yet.
	7431	+ if (ie && ie_version < 9) return false;
	7432	+ var div = elt('div');
	7433	+ return "draggable" in div || "dragDrop" in div;
	7434	+ }();
	7435	+
	7436	+ var knownScrollbarWidth;
	7437	+ function scrollbarWidth(measure) {
	7438	+ if (knownScrollbarWidth != null) return knownScrollbarWidth;
	7439	+ var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll");
	7440	+ removeChildrenAndAdd(measure, test);
	7441	+ if (test.offsetWidth)
	7442	+ knownScrollbarWidth = test.offsetHeight - test.clientHeight;
	7443	+ return knownScrollbarWidth || 0;
	7444	+ }
	7445	+
	7446	+ var zwspSupported;
	7447	+ function zeroWidthElement(measure) {
	7448	+ if (zwspSupported == null) {
	7449	+ var test = elt("span", "\u200b");
	7450	+ removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
	7451	+ if (measure.firstChild.offsetHeight != 0)
	7452	+ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
	7453	+ }
	7454	+ if (zwspSupported) return elt("span", "\u200b");
	7455	+ else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
	7456	+ }
	7457	+
	7458	+ // Feature-detect IE's crummy client rect reporting for bidi text
	7459	+ var badBidiRects;
	7460	+ function hasBadBidiRects(measure) {
	7461	+ if (badBidiRects != null) return badBidiRects;
	7462	+ var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
	7463	+ var r0 = range(txt, 0, 1).getBoundingClientRect();
	7464	+ if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
	7465	+ var r1 = range(txt, 1, 2).getBoundingClientRect();
	7466	+ return badBidiRects = (r1.right - r0.right < 3);
	7467	+ }
	7468	+
	7469	+ // See if "".split is the broken IE version, if so, provide an
	7470	+ // alternative way to split lines.
	7471	+ var splitLines = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
	7472	+ var pos = 0, result = [], l = string.length;
	7473	+ while (pos <= l) {
	7474	+ var nl = string.indexOf("\n", pos);
	7475	+ if (nl == -1) nl = string.length;
	7476	+ var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
	7477	+ var rt = line.indexOf("\r");
	7478	+ if (rt != -1) {
	7479	+ result.push(line.slice(0, rt));
	7480	+ pos += rt + 1;
	7481	+ } else {
	7482	+ result.push(line);
	7483	+ pos = nl + 1;
	7484	+ }
	7485	+ }
	7486	+ return result;
	7487	+ } : function(string){return string.split(/\r\n?|\n/);};
	7488	+
	7489	+ var hasSelection = window.getSelection ? function(te) {
	7490	+ try { return te.selectionStart != te.selectionEnd; }
	7491	+ catch(e) { return false; }
	7492	+ } : function(te) {
	7493	+ try {var range = te.ownerDocument.selection.createRange();}
	7494	+ catch(e) {}
	7495	+ if (!range || range.parentElement() != te) return false;
	7496	+ return range.compareEndPoints("StartToEnd", range) != 0;
	7497	+ };
	7498	+
	7499	+ var hasCopyEvent = (function() {
	7500	+ var e = elt("div");
	7501	+ if ("oncopy" in e) return true;
	7502	+ e.setAttribute("oncopy", "return;");
	7503	+ return typeof e.oncopy == "function";
	7504	+ })();
	7505	+
	7506	+ var badZoomedRects = null;
	7507	+ function hasBadZoomedRects(measure) {
	7508	+ if (badZoomedRects != null) return badZoomedRects;
	7509	+ var node = removeChildrenAndAdd(measure, elt("span", "x"));
	7510	+ var normal = node.getBoundingClientRect();
	7511	+ var fromRange = range(node, 0, 1).getBoundingClientRect();
	7512	+ return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
	7513	+ }
	7514	+
	7515	+ // KEY NAMES
	7516	+
	7517	+ var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
	7518	+ 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
	7519	+ 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
	7520	+ 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", 107: "=", 109: "-", 127: "Delete",
	7521	+ 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
	7522	+ 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
	7523	+ 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"};
	7524	+ CodeMirror.keyNames = keyNames;
	7525	+ (function() {
	7526	+ // Number keys
	7527	+ for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
	7528	+ // Alphabetic keys
	7529	+ for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
	7530	+ // Function keys
	7531	+ for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
	7532	+ })();
	7533	+
	7534	+ // BIDI HELPERS
	7535	+
	7536	+ function iterateBidiSections(order, from, to, f) {
	7537	+ if (!order) return f(from, to, "ltr");
	7538	+ var found = false;
	7539	+ for (var i = 0; i < order.length; ++i) {
	7540	+ var part = order[i];
	7541	+ if (part.from < to && part.to > from || from == to && part.to == from) {
	7542	+ f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
	7543	+ found = true;
	7544	+ }
	7545	+ }
	7546	+ if (!found) f(from, to, "ltr");
	7547	+ }
	7548	+
	7549	+ function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
	7550	+ function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
	7551	+
	7552	+ function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
	7553	+ function lineRight(line) {
	7554	+ var order = getOrder(line);
	7555	+ if (!order) return line.text.length;
	7556	+ return bidiRight(lst(order));
	7557	+ }
	7558	+
	7559	+ function lineStart(cm, lineN) {
	7560	+ var line = getLine(cm.doc, lineN);
	7561	+ var visual = visualLine(line);
	7562	+ if (visual != line) lineN = lineNo(visual);
	7563	+ var order = getOrder(visual);
	7564	+ var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
	7565	+ return Pos(lineN, ch);
	7566	+ }
	7567	+ function lineEnd(cm, lineN) {
	7568	+ var merged, line = getLine(cm.doc, lineN);
	7569	+ while (merged = collapsedSpanAtEnd(line)) {
	7570	+ line = merged.find(1, true).line;
	7571	+ lineN = null;
	7572	+ }
	7573	+ var order = getOrder(line);
	7574	+ var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
	7575	+ return Pos(lineN == null ? lineNo(line) : lineN, ch);
	7576	+ }
	7577	+ function lineStartSmart(cm, pos) {
	7578	+ var start = lineStart(cm, pos.line);
	7579	+ var line = getLine(cm.doc, start.line);
	7580	+ var order = getOrder(line);
	7581	+ if (!order || order[0].level == 0) {
	7582	+ var firstNonWS = Math.max(0, line.text.search(/\S/));
	7583	+ var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
	7584	+ return Pos(start.line, inWS ? 0 : firstNonWS);
	7585	+ }
	7586	+ return start;
	7587	+ }
	7588	+
	7589	+ function compareBidiLevel(order, a, b) {
	7590	+ var linedir = order[0].level;
	7591	+ if (a == linedir) return true;
	7592	+ if (b == linedir) return false;
	7593	+ return a < b;
	7594	+ }
	7595	+ var bidiOther;
	7596	+ function getBidiPartAt(order, pos) {
	7597	+ bidiOther = null;
	7598	+ for (var i = 0, found; i < order.length; ++i) {
	7599	+ var cur = order[i];
	7600	+ if (cur.from < pos && cur.to > pos) return i;
	7601	+ if ((cur.from == pos || cur.to == pos)) {
	7602	+ if (found == null) {
	7603	+ found = i;
	7604	+ } else if (compareBidiLevel(order, cur.level, order[found].level)) {
	7605	+ if (cur.from != cur.to) bidiOther = found;
	7606	+ return i;
	7607	+ } else {
	7608	+ if (cur.from != cur.to) bidiOther = i;
	7609	+ return found;
	7610	+ }
	7611	+ }
	7612	+ }
	7613	+ return found;
	7614	+ }
	7615	+
	7616	+ function moveInLine(line, pos, dir, byUnit) {
	7617	+ if (!byUnit) return pos + dir;
	7618	+ do pos += dir;
	7619	+ while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
	7620	+ return pos;
	7621	+ }
	7622	+
	7623	+ // This is needed in order to move 'visually' through bi-directional
	7624	+ // text -- i.e., pressing left should make the cursor go left, even
	7625	+ // when in RTL text. The tricky part is the 'jumps', where RTL and
	7626	+ // LTR text touch each other. This often requires the cursor offset
	7627	+ // to move more than one unit, in order to visually move one unit.
	7628	+ function moveVisually(line, start, dir, byUnit) {
	7629	+ var bidi = getOrder(line);
	7630	+ if (!bidi) return moveLogically(line, start, dir, byUnit);
	7631	+ var pos = getBidiPartAt(bidi, start), part = bidi[pos];
	7632	+ var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
	7633	+
	7634	+ for (;;) {
	7635	+ if (target > part.from && target < part.to) return target;
	7636	+ if (target == part.from || target == part.to) {
	7637	+ if (getBidiPartAt(bidi, target) == pos) return target;
	7638	+ part = bidi[pos += dir];
	7639	+ return (dir > 0) == part.level % 2 ? part.to : part.from;
	7640	+ } else {
	7641	+ part = bidi[pos += dir];
	7642	+ if (!part) return null;
	7643	+ if ((dir > 0) == part.level % 2)
	7644	+ target = moveInLine(line, part.to, -1, byUnit);
	7645	+ else
	7646	+ target = moveInLine(line, part.from, 1, byUnit);
	7647	+ }
	7648	+ }
	7649	+ }
	7650	+
	7651	+ function moveLogically(line, start, dir, byUnit) {
	7652	+ var target = start + dir;
	7653	+ if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
	7654	+ return target < 0 || target > line.text.length ? null : target;
	7655	+ }
	7656	+
	7657	+ // Bidirectional ordering algorithm
	7658	+ // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
	7659	+ // that this (partially) implements.
	7660	+
	7661	+ // One-char codes used for character types:
	7662	+ // L (L): Left-to-Right
	7663	+ // R (R): Right-to-Left
	7664	+ // r (AL): Right-to-Left Arabic
	7665	+ // 1 (EN): European Number
	7666	+ // + (ES): European Number Separator
	7667	+ // % (ET): European Number Terminator
	7668	+ // n (AN): Arabic Number
	7669	+ // , (CS): Common Number Separator
	7670	+ // m (NSM): Non-Spacing Mark
	7671	+ // b (BN): Boundary Neutral
	7672	+ // s (B): Paragraph Separator
	7673	+ // t (S): Segment Separator
	7674	+ // w (WS): Whitespace
	7675	+ // N (ON): Other Neutrals
	7676	+
	7677	+ // Returns null if characters are ordered as they appear
	7678	+ // (left-to-right), or an array of sections ({from, to, level}
	7679	+ // objects) in the order in which they occur visually.
	7680	+ var bidiOrdering = (function() {
	7681	+ // Character types for codepoints 0 to 0xff
	7682	+ var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
	7683	+ // Character types for codepoints 0x600 to 0x6ff
	7684	+ var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
	7685	+ function charType(code) {
	7686	+ if (code <= 0xf7) return lowTypes.charAt(code);
	7687	+ else if (0x590 <= code && code <= 0x5f4) return "R";
	7688	+ else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
	7689	+ else if (0x6ee <= code && code <= 0x8ac) return "r";
	7690	+ else if (0x2000 <= code && code <= 0x200b) return "w";
	7691	+ else if (code == 0x200c) return "b";
	7692	+ else return "L";
	7693	+ }
	7694	+
	7695	+ var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
	7696	+ var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
	7697	+ // Browsers seem to always treat the boundaries of block elements as being L.
	7698	+ var outerType = "L";
	7699	+
	7700	+ function BidiSpan(level, from, to) {
	7701	+ this.level = level;
	7702	+ this.from = from; this.to = to;
	7703	+ }
	7704	+
	7705	+ return function(str) {
	7706	+ if (!bidiRE.test(str)) return false;
	7707	+ var len = str.length, types = [];
	7708	+ for (var i = 0, type; i < len; ++i)
	7709	+ types.push(type = charType(str.charCodeAt(i)));
	7710	+
	7711	+ // W1. Examine each non-spacing mark (NSM) in the level run, and
	7712	+ // change the type of the NSM to the type of the previous
	7713	+ // character. If the NSM is at the start of the level run, it will
	7714	+ // get the type of sor.
	7715	+ for (var i = 0, prev = outerType; i < len; ++i) {
	7716	+ var type = types[i];
	7717	+ if (type == "m") types[i] = prev;
	7718	+ else prev = type;
	7719	+ }
	7720	+
	7721	+ // W2. Search backwards from each instance of a European number
	7722	+ // until the first strong type (R, L, AL, or sor) is found. If an
	7723	+ // AL is found, change the type of the European number to Arabic
	7724	+ // number.
	7725	+ // W3. Change all ALs to R.
	7726	+ for (var i = 0, cur = outerType; i < len; ++i) {
	7727	+ var type = types[i];
	7728	+ if (type == "1" && cur == "r") types[i] = "n";
	7729	+ else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
	7730	+ }
	7731	+
	7732	+ // W4. A single European separator between two European numbers
	7733	+ // changes to a European number. A single common separator between
	7734	+ // two numbers of the same type changes to that type.
	7735	+ for (var i = 1, prev = types[0]; i < len - 1; ++i) {
	7736	+ var type = types[i];
	7737	+ if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
	7738	+ else if (type == "," && prev == types[i+1] &&
	7739	+ (prev == "1" || prev == "n")) types[i] = prev;
	7740	+ prev = type;
	7741	+ }
	7742	+
	7743	+ // W5. A sequence of European terminators adjacent to European
	7744	+ // numbers changes to all European numbers.
	7745	+ // W6. Otherwise, separators and terminators change to Other
	7746	+ // Neutral.
	7747	+ for (var i = 0; i < len; ++i) {
	7748	+ var type = types[i];
	7749	+ if (type == ",") types[i] = "N";
	7750	+ else if (type == "%") {
	7751	+ for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
	7752	+ var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
	7753	+ for (var j = i; j < end; ++j) types[j] = replace;
	7754	+ i = end - 1;
	7755	+ }
	7756	+ }
	7757	+
	7758	+ // W7. Search backwards from each instance of a European number
	7759	+ // until the first strong type (R, L, or sor) is found. If an L is
	7760	+ // found, then change the type of the European number to L.
	7761	+ for (var i = 0, cur = outerType; i < len; ++i) {
	7762	+ var type = types[i];
	7763	+ if (cur == "L" && type == "1") types[i] = "L";
	7764	+ else if (isStrong.test(type)) cur = type;
	7765	+ }
	7766	+
	7767	+ // N1. A sequence of neutrals takes the direction of the
	7768	+ // surrounding strong text if the text on both sides has the same
	7769	+ // direction. European and Arabic numbers act as if they were R in
	7770	+ // terms of their influence on neutrals. Start-of-level-run (sor)
	7771	+ // and end-of-level-run (eor) are used at level run boundaries.
	7772	+ // N2. Any remaining neutrals take the embedding direction.
	7773	+ for (var i = 0; i < len; ++i) {
	7774	+ if (isNeutral.test(types[i])) {
	7775	+ for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
	7776	+ var before = (i ? types[i-1] : outerType) == "L";
	7777	+ var after = (end < len ? types[end] : outerType) == "L";
	7778	+ var replace = before || after ? "L" : "R";
	7779	+ for (var j = i; j < end; ++j) types[j] = replace;
	7780	+ i = end - 1;
	7781	+ }
	7782	+ }
	7783	+
	7784	+ // Here we depart from the documented algorithm, in order to avoid
	7785	+ // building up an actual levels array. Since there are only three
	7786	+ // levels (0, 1, 2) in an implementation that doesn't take
	7787	+ // explicit embedding into account, we can build up the order on
	7788	+ // the fly, without following the level-based algorithm.
	7789	+ var order = [], m;
	7790	+ for (var i = 0; i < len;) {
	7791	+ if (countsAsLeft.test(types[i])) {
	7792	+ var start = i;
	7793	+ for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
	7794	+ order.push(new BidiSpan(0, start, i));
	7795	+ } else {
	7796	+ var pos = i, at = order.length;
	7797	+ for (++i; i < len && types[i] != "L"; ++i) {}
	7798	+ for (var j = pos; j < i;) {
	7799	+ if (countsAsNum.test(types[j])) {
	7800	+ if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
	7801	+ var nstart = j;
	7802	+ for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
	7803	+ order.splice(at, 0, new BidiSpan(2, nstart, j));
	7804	+ pos = j;
	7805	+ } else ++j;
	7806	+ }
	7807	+ if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
	7808	+ }
	7809	+ }
	7810	+ if (order[0].level == 1 && (m = str.match(/^\s+/))) {
	7811	+ order[0].from = m[0].length;
	7812	+ order.unshift(new BidiSpan(0, 0, m[0].length));
	7813	+ }
	7814	+ if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
	7815	+ lst(order).to -= m[0].length;
	7816	+ order.push(new BidiSpan(0, len - m[0].length, len));
	7817	+ }
	7818	+ if (order[0].level != lst(order).level)
	7819	+ order.push(new BidiSpan(order[0].level, len, len));
	7820	+
	7821	+ return order;
	7822	+ };
	7823	+ })();
	7824	+
	7825	+ // THE END
	7826	+
	7827	+ CodeMirror.version = "4.7.0";
	7828	+
	7829	+ return CodeMirror;
	7830	+});