From 99f904adcc37d93c90defcd8ce898598e25be212 Mon Sep 17 00:00:00 2001 From: Hugues Hiegel Date: Wed, 11 Mar 2015 16:55:04 +0100 Subject: Lot of plugins --- .../lib/CodeMirror-2.3/lib/codemirror.css | 168 ++ codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.js | 3181 ++++++++++++++++++++ .../lib/CodeMirror-2.3/lib/util/closetag.js | 146 + .../lib/CodeMirror-2.3/lib/util/dialog.css | 23 + .../lib/CodeMirror-2.3/lib/util/dialog.js | 63 + .../lib/CodeMirror-2.3/lib/util/foldcode.js | 196 ++ .../lib/CodeMirror-2.3/lib/util/formatting.js | 297 ++ .../lib/CodeMirror-2.3/lib/util/javascript-hint.js | 134 + .../lib/CodeMirror-2.3/lib/util/loadmode.js | 51 + .../CodeMirror-2.3/lib/util/match-highlighter.js | 44 + .../lib/CodeMirror-2.3/lib/util/multiplex.js | 72 + .../lib/CodeMirror-2.3/lib/util/overlay.js | 52 + .../lib/CodeMirror-2.3/lib/util/pig-hint.js | 123 + .../lib/CodeMirror-2.3/lib/util/runmode.js | 49 + .../lib/CodeMirror-2.3/lib/util/search.js | 118 + .../lib/CodeMirror-2.3/lib/util/searchcursor.js | 117 + .../lib/CodeMirror-2.3/lib/util/simple-hint.css | 16 + .../lib/CodeMirror-2.3/lib/util/simple-hint.js | 72 + 18 files changed, 4922 insertions(+) create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.css create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/closetag.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.css create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/foldcode.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/formatting.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/loadmode.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/match-highlighter.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/multiplex.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/overlay.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/pig-hint.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/runmode.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/search.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/searchcursor.js create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.css create mode 100644 codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.js (limited to 'codemirror_ui/lib/CodeMirror-2.3/lib') diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.css b/codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.css new file mode 100644 index 0000000..191ac25 --- /dev/null +++ b/codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.css @@ -0,0 +1,168 @@ +.CodeMirror { + line-height: 1em; + font-family: monospace; + + /* Necessary so the scrollbar can be absolutely positioned within the wrapper on Lion. */ + position: relative; + /* This prevents unwanted scrollbars from showing up on the body and wrapper in IE. */ + overflow: hidden; +} + +.CodeMirror-scroll { + overflow-x: auto; + overflow-y: hidden; + height: 300px; + /* This is needed to prevent an IE[67] bug where the scrolled content + is visible outside of the scrolling box. */ + position: relative; + outline: none; +} + +/* Vertical scrollbar */ +.CodeMirror-scrollbar { + float: right; + overflow-x: hidden; + overflow-y: scroll; + + /* This corrects for the 1px gap introduced to the left of the scrollbar + by the rule for .CodeMirror-scrollbar-inner. */ + margin-left: -1px; +} +.CodeMirror-scrollbar-inner { + /* This needs to have a nonzero width in order for the scrollbar to appear + in Firefox and IE9. */ + width: 1px; +} +.CodeMirror-scrollbar.cm-sb-overlap { + /* Ensure that the scrollbar appears in Lion, and that it overlaps the content + rather than sitting to the right of it. */ + position: absolute; + z-index: 1; + float: none; + right: 0; + min-width: 12px; +} +.CodeMirror-scrollbar.cm-sb-nonoverlap { + min-width: 12px; +} +.CodeMirror-scrollbar.cm-sb-ie7 { + min-width: 18px; +} + +.CodeMirror-gutter { + position: absolute; left: 0; top: 0; + z-index: 10; + background-color: #f7f7f7; + border-right: 1px solid #eee; + min-width: 2em; + height: 100%; +} +.CodeMirror-gutter-text { + color: #aaa; + text-align: right; + padding: .4em .2em .4em .4em; + white-space: pre !important; +} +.CodeMirror-lines { + padding: .4em; + white-space: pre; + cursor: text; +} +.CodeMirror-lines * { + /* Necessary for throw-scrolling to decelerate properly on Safari. */ + pointer-events: none; +} + +.CodeMirror pre { + -moz-border-radius: 0; + -webkit-border-radius: 0; + -o-border-radius: 0; + border-radius: 0; + border-width: 0; margin: 0; padding: 0; background: transparent; + font-family: inherit; + font-size: inherit; + padding: 0; margin: 0; + white-space: pre; + word-wrap: normal; + line-height: inherit; + color: inherit; +} + +.CodeMirror-wrap pre { + word-wrap: break-word; + white-space: pre-wrap; + word-break: normal; +} +.CodeMirror-wrap .CodeMirror-scroll { + overflow-x: hidden; +} + +.CodeMirror textarea { + outline: none !important; +} + +.CodeMirror pre.CodeMirror-cursor { + z-index: 10; + position: absolute; + visibility: hidden; + border-left: 1px solid black; + border-right: none; + width: 0; +} +.cm-keymap-fat-cursor pre.CodeMirror-cursor { + width: auto; + border: 0; + background: transparent; + background: rgba(0, 200, 0, .4); + filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#6600c800, endColorstr=#4c00c800); +} +/* Kludge to turn off filter in ie9+, which also accepts rgba */ +.cm-keymap-fat-cursor pre.CodeMirror-cursor:not(#nonsense_id) { + filter: progid:DXImageTransform.Microsoft.gradient(enabled=false); +} +.CodeMirror pre.CodeMirror-cursor.CodeMirror-overwrite {} +.CodeMirror-focused pre.CodeMirror-cursor { + visibility: visible; +} + +div.CodeMirror-selected { background: #d9d9d9; } +.CodeMirror-focused div.CodeMirror-selected { background: #d7d4f0; } + +.CodeMirror-searching { + background: #ffa; + background: rgba(255, 255, 0, .4); +} + +/* Default theme */ + +.cm-s-default span.cm-keyword {color: #708;} +.cm-s-default span.cm-atom {color: #219;} +.cm-s-default span.cm-number {color: #164;} +.cm-s-default span.cm-def {color: #00f;} +.cm-s-default span.cm-variable {color: black;} +.cm-s-default span.cm-variable-2 {color: #05a;} +.cm-s-default span.cm-variable-3 {color: #085;} +.cm-s-default span.cm-property {color: black;} +.cm-s-default span.cm-operator {color: black;} +.cm-s-default span.cm-comment {color: #a50;} +.cm-s-default span.cm-string {color: #a11;} +.cm-s-default span.cm-string-2 {color: #f50;} +.cm-s-default span.cm-meta {color: #555;} +.cm-s-default span.cm-error {color: #f00;} +.cm-s-default span.cm-qualifier {color: #555;} +.cm-s-default span.cm-builtin {color: #30a;} +.cm-s-default span.cm-bracket {color: #cc7;} +.cm-s-default span.cm-tag {color: #170;} +.cm-s-default span.cm-attribute {color: #00c;} +.cm-s-default span.cm-header {color: blue;} +.cm-s-default span.cm-quote {color: #090;} +.cm-s-default span.cm-hr {color: #999;} +.cm-s-default span.cm-link {color: #00c;} + +span.cm-header, span.cm-strong {font-weight: bold;} +span.cm-em {font-style: italic;} +span.cm-emstrong {font-style: italic; font-weight: bold;} +span.cm-link {text-decoration: underline;} + +div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;} +div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.js b/codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.js new file mode 100644 index 0000000..250d5b1 --- /dev/null +++ b/codemirror_ui/lib/CodeMirror-2.3/lib/codemirror.js @@ -0,0 +1,3181 @@ +// CodeMirror version 2.3 +// +// All functions that need access to the editor's state live inside +// the CodeMirror function. Below that, at the bottom of the file, +// some utilities are defined. + +// CodeMirror is the only global var we claim +var CodeMirror = (function() { + // This is the function that produces an editor instance. Its + // closure is used to store the editor state. + function CodeMirror(place, givenOptions) { + // Determine effective options based on given values and defaults. + var options = {}, defaults = CodeMirror.defaults; + for (var opt in defaults) + if (defaults.hasOwnProperty(opt)) + options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt]; + + // The element in which the editor lives. + var wrapper = document.createElement("div"); + wrapper.className = "CodeMirror" + (options.lineWrapping ? " CodeMirror-wrap" : ""); + // This mess creates the base DOM structure for the editor. + wrapper.innerHTML = + '
' + // Wraps and hides input textarea + '
' + + '
' + // The vertical scrollbar. Horizontal scrolling is handled by the scroller itself. + '
' + // The empty scrollbar content, used solely for managing the scrollbar thumb. + '
' + // This must be before the scroll area because it's float-right. + '
' + + '
' + // Set to the height of the text, causes scrolling + '
' + // Moved around its parent to cover visible view + '
' + + // Provides positioning relative to (visible) text origin + '
' + + // Used to measure text size + '
' + + '
 
' + // Absolutely positioned blinky cursor + '' + // Used to force a width + '
' + // DIVs containing the selection and the actual code + '
'; + if (place.appendChild) place.appendChild(wrapper); else place(wrapper); + // I've never seen more elegant code in my life. + var inputDiv = wrapper.firstChild, input = inputDiv.firstChild, + scroller = wrapper.lastChild, code = scroller.firstChild, + mover = code.firstChild, gutter = mover.firstChild, gutterText = gutter.firstChild, + lineSpace = gutter.nextSibling.firstChild, measure = lineSpace.firstChild, + cursor = measure.nextSibling, widthForcer = cursor.nextSibling, + selectionDiv = widthForcer.nextSibling, lineDiv = selectionDiv.nextSibling, + scrollbar = inputDiv.nextSibling, scrollbarInner = scrollbar.firstChild; + themeChanged(); keyMapChanged(); + // Needed to hide big blue blinking cursor on Mobile Safari + if (ios) input.style.width = "0px"; + if (!webkit) scroller.draggable = true; + lineSpace.style.outline = "none"; + if (options.tabindex != null) input.tabIndex = options.tabindex; + if (options.autofocus) focusInput(); + if (!options.gutter && !options.lineNumbers) gutter.style.display = "none"; + // Needed to handle Tab key in KHTML + if (khtml) inputDiv.style.height = "1px", inputDiv.style.position = "absolute"; + + // Check for OS X >= 10.7. If so, we need to force a width on the scrollbar, and + // make it overlap the content. (But we only do this if the scrollbar doesn't already + // have a natural width. If the mouse is plugged in or the user sets the system pref + // to always show scrollbars, the scrollbar shouldn't overlap.) + if (mac_geLion) { + scrollbar.className += (overlapScrollbars() ? " cm-sb-overlap" : " cm-sb-nonoverlap"); + } else if (ie_lt8) { + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). + scrollbar.className += " cm-sb-ie7"; + } + + // Check for problem with IE innerHTML not working when we have a + // P (or similar) parent node. + try { stringWidth("x"); } + catch (e) { + if (e.message.match(/runtime/i)) + e = new Error("A CodeMirror inside a P-style element does not work in Internet Explorer. (innerHTML bug)"); + throw e; + } + + // Delayed object wrap timeouts, making sure only one is active. blinker holds an interval. + var poll = new Delayed(), highlight = new Delayed(), blinker; + + // mode holds a mode API object. doc is the tree of Line objects, + // work an array of lines that should be parsed, and history the + // undo history (instance of History constructor). + var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), work, focused; + loadMode(); + // The selection. These are always maintained to point at valid + // positions. Inverted is used to remember that the user is + // selecting bottom-to-top. + var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false}; + // Selection-related flags. shiftSelecting obviously tracks + // whether the user is holding shift. + var shiftSelecting, lastClick, lastDoubleClick, lastScrollTop = 0, lastScrollLeft = 0, draggingText, + overwrite = false, suppressEdits = false; + // Variables used by startOperation/endOperation to track what + // happened during the operation. + var updateInput, userSelChange, changes, textChanged, selectionChanged, leaveInputAlone, + gutterDirty, callbacks; + // Current visible range (may be bigger than the view window). + var displayOffset = 0, showingFrom = 0, showingTo = 0, lastSizeC = 0; + // bracketHighlighted is used to remember that a bracket has been + // marked. + var bracketHighlighted; + // Tracks the maximum line length so that the horizontal scrollbar + // can be kept static when scrolling. + var maxLine = "", updateMaxLine = false, maxLineChanged = true; + var tabCache = {}; + + // Initialize the content. + operation(function(){setValue(options.value || ""); updateInput = false;})(); + var history = new History(); + + // Register our event handlers. + connect(scroller, "mousedown", operation(onMouseDown)); + connect(scroller, "dblclick", operation(onDoubleClick)); + connect(lineSpace, "selectstart", e_preventDefault); + // Gecko browsers fire contextmenu *after* opening the menu, at + // which point we can't mess with it anymore. Context menu is + // handled in onMouseDown for Gecko. + if (!gecko) connect(scroller, "contextmenu", onContextMenu); + connect(scroller, "scroll", onScroll); + connect(scrollbar, "scroll", onScroll); + connect(scrollbar, "mousedown", function() {setTimeout(focusInput, 0);}); + connect(scroller, "mousewheel", onMouseWheel); + connect(scroller, "DOMMouseScroll", onMouseWheel); + connect(window, "resize", function() {updateDisplay(true);}); + connect(input, "keyup", operation(onKeyUp)); + connect(input, "input", fastPoll); + connect(input, "keydown", operation(onKeyDown)); + connect(input, "keypress", operation(onKeyPress)); + connect(input, "focus", onFocus); + connect(input, "blur", onBlur); + + if (options.dragDrop) { + connect(scroller, "dragstart", onDragStart); + function drag_(e) { + if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return; + e_stop(e); + } + connect(scroller, "dragenter", drag_); + connect(scroller, "dragover", drag_); + connect(scroller, "drop", operation(onDrop)); + } + connect(scroller, "paste", function(){focusInput(); fastPoll();}); + connect(input, "paste", fastPoll); + connect(input, "cut", operation(function(){ + if (!options.readOnly) replaceSelection(""); + })); + + // Needed to handle Tab key in KHTML + if (khtml) connect(code, "mouseup", function() { + if (document.activeElement == input) input.blur(); + focusInput(); + }); + + // IE throws unspecified error in certain cases, when + // trying to access activeElement before onload + var hasFocus; try { hasFocus = (document.activeElement == input); } catch(e) { } + if (hasFocus || options.autofocus) setTimeout(onFocus, 20); + else onBlur(); + + function isLine(l) {return l >= 0 && l < doc.size;} + // The instance object that we'll return. Mostly calls out to + // local functions in the CodeMirror function. Some do some extra + // range checking and/or clipping. operation is used to wrap the + // call so that changes it makes are tracked, and the display is + // updated afterwards. + var instance = wrapper.CodeMirror = { + getValue: getValue, + setValue: operation(setValue), + getSelection: getSelection, + replaceSelection: operation(replaceSelection), + focus: function(){window.focus(); focusInput(); onFocus(); fastPoll();}, + setOption: function(option, value) { + var oldVal = options[option]; + options[option] = value; + if (option == "mode" || option == "indentUnit") loadMode(); + else if (option == "readOnly" && value == "nocursor") {onBlur(); input.blur();} + else if (option == "readOnly" && !value) {resetInput(true);} + else if (option == "theme") themeChanged(); + else if (option == "lineWrapping" && oldVal != value) operation(wrappingChanged)(); + else if (option == "tabSize") updateDisplay(true); + else if (option == "keyMap") keyMapChanged(); + if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" || option == "theme") { + gutterChanged(); + updateDisplay(true); + } + }, + getOption: function(option) {return options[option];}, + undo: operation(undo), + redo: operation(redo), + indentLine: operation(function(n, dir) { + if (typeof dir != "string") { + if (dir == null) dir = options.smartIndent ? "smart" : "prev"; + else dir = dir ? "add" : "subtract"; + } + if (isLine(n)) indentLine(n, dir); + }), + indentSelection: operation(indentSelected), + historySize: function() {return {undo: history.done.length, redo: history.undone.length};}, + clearHistory: function() {history = new History();}, + matchBrackets: operation(function(){matchBrackets(true);}), + getTokenAt: operation(function(pos) { + pos = clipPos(pos); + return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), pos.ch); + }), + getStateAfter: function(line) { + line = clipLine(line == null ? doc.size - 1: line); + return getStateBefore(line + 1); + }, + cursorCoords: function(start, mode) { + if (start == null) start = sel.inverted; + return this.charCoords(start ? sel.from : sel.to, mode); + }, + charCoords: function(pos, mode) { + pos = clipPos(pos); + if (mode == "local") return localCoords(pos, false); + if (mode == "div") return localCoords(pos, true); + return pageCoords(pos); + }, + coordsChar: function(coords) { + var off = eltOffset(lineSpace); + return coordsChar(coords.x - off.left, coords.y - off.top); + }, + markText: operation(markText), + setBookmark: setBookmark, + findMarksAt: findMarksAt, + setMarker: operation(addGutterMarker), + clearMarker: operation(removeGutterMarker), + setLineClass: operation(setLineClass), + hideLine: operation(function(h) {return setLineHidden(h, true);}), + showLine: operation(function(h) {return setLineHidden(h, false);}), + onDeleteLine: function(line, f) { + if (typeof line == "number") { + if (!isLine(line)) return null; + line = getLine(line); + } + (line.handlers || (line.handlers = [])).push(f); + return line; + }, + lineInfo: lineInfo, + addWidget: function(pos, node, scroll, vert, horiz) { + pos = localCoords(clipPos(pos)); + var top = pos.yBot, left = pos.x; + node.style.position = "absolute"; + code.appendChild(node); + if (vert == "over") top = pos.y; + else if (vert == "near") { + var vspace = Math.max(scroller.offsetHeight, doc.height * textHeight()), + hspace = Math.max(code.clientWidth, lineSpace.clientWidth) - paddingLeft(); + if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight) + top = pos.y - node.offsetHeight; + if (left + node.offsetWidth > hspace) + left = hspace - node.offsetWidth; + } + node.style.top = (top + paddingTop()) + "px"; + node.style.left = node.style.right = ""; + if (horiz == "right") { + left = code.clientWidth - node.offsetWidth; + node.style.right = "0px"; + } else { + if (horiz == "left") left = 0; + else if (horiz == "middle") left = (code.clientWidth - node.offsetWidth) / 2; + node.style.left = (left + paddingLeft()) + "px"; + } + if (scroll) + scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight); + }, + + lineCount: function() {return doc.size;}, + clipPos: clipPos, + getCursor: function(start) { + if (start == null) start = sel.inverted; + return copyPos(start ? sel.from : sel.to); + }, + somethingSelected: function() {return !posEq(sel.from, sel.to);}, + setCursor: operation(function(line, ch, user) { + if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch, user); + else setCursor(line, ch, user); + }), + setSelection: operation(function(from, to, user) { + (user ? setSelectionUser : setSelection)(clipPos(from), clipPos(to || from)); + }), + getLine: function(line) {if (isLine(line)) return getLine(line).text;}, + getLineHandle: function(line) {if (isLine(line)) return getLine(line);}, + setLine: operation(function(line, text) { + if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: getLine(line).text.length}); + }), + removeLine: operation(function(line) { + if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0})); + }), + replaceRange: operation(replaceRange), + getRange: function(from, to) {return getRange(clipPos(from), clipPos(to));}, + + triggerOnKeyDown: operation(onKeyDown), + execCommand: function(cmd) {return commands[cmd](instance);}, + // Stuff used by commands, probably not much use to outside code. + moveH: operation(moveH), + deleteH: operation(deleteH), + moveV: operation(moveV), + toggleOverwrite: function() { + if(overwrite){ + overwrite = false; + cursor.className = cursor.className.replace(" CodeMirror-overwrite", ""); + } else { + overwrite = true; + cursor.className += " CodeMirror-overwrite"; + } + }, + + posFromIndex: function(off) { + var lineNo = 0, ch; + doc.iter(0, doc.size, function(line) { + var sz = line.text.length + 1; + if (sz > off) { ch = off; return true; } + off -= sz; + ++lineNo; + }); + return clipPos({line: lineNo, ch: ch}); + }, + indexFromPos: function (coords) { + if (coords.line < 0 || coords.ch < 0) return 0; + var index = coords.ch; + doc.iter(0, coords.line, function (line) { + index += line.text.length + 1; + }); + return index; + }, + scrollTo: function(x, y) { + if (x != null) scroller.scrollLeft = x; + if (y != null) scrollbar.scrollTop = y; + updateDisplay([]); + }, + getScrollInfo: function() { + return {x: scroller.scrollLeft, y: scrollbar.scrollTop, + height: scrollbar.scrollHeight, width: scroller.scrollWidth}; + }, + + operation: function(f){return operation(f)();}, + compoundChange: function(f){return compoundChange(f);}, + refresh: function(){ + updateDisplay(true); + if (scrollbar.scrollHeight > lastScrollTop) + scrollbar.scrollTop = lastScrollTop; + }, + getInputField: function(){return input;}, + getWrapperElement: function(){return wrapper;}, + getScrollerElement: function(){return scroller;}, + getGutterElement: function(){return gutter;} + }; + + function getLine(n) { return getLineAt(doc, n); } + function updateLineHeight(line, height) { + gutterDirty = true; + var diff = height - line.height; + for (var n = line; n; n = n.parent) n.height += diff; + } + + function setValue(code) { + var top = {line: 0, ch: 0}; + updateLines(top, {line: doc.size - 1, ch: getLine(doc.size-1).text.length}, + splitLines(code), top, top); + updateInput = true; + } + function getValue() { + var text = []; + doc.iter(0, doc.size, function(line) { text.push(line.text); }); + return text.join("\n"); + } + + function onScroll(e) { + if (lastScrollTop != scrollbar.scrollTop || lastScrollLeft != scroller.scrollLeft) { + lastScrollTop = scrollbar.scrollTop; + lastScrollLeft = scroller.scrollLeft; + updateDisplay([]); + if (options.fixedGutter) gutter.style.left = scroller.scrollLeft + "px"; + if (options.onScroll) options.onScroll(instance); + } + } + + function onMouseDown(e) { + setShift(e_prop(e, "shiftKey")); + // Check whether this is a click in a widget + for (var n = e_target(e); n != wrapper; n = n.parentNode) + if (n.parentNode == code && n != mover) return; + + // See if this is a click in the gutter + for (var n = e_target(e); n != wrapper; n = n.parentNode) + if (n.parentNode == gutterText) { + if (options.onGutterClick) + options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom, e); + return e_preventDefault(e); + } + + var start = posFromMouse(e); + + switch (e_button(e)) { + case 3: + if (gecko && !mac) onContextMenu(e); + return; + case 2: + if (start) setCursor(start.line, start.ch, true); + setTimeout(focusInput, 20); + e_preventDefault(e); + return; + } + // For button 1, if it was clicked inside the editor + // (posFromMouse returning non-null), we have to adjust the + // selection. + if (!start) {if (e_target(e) == scroller) e_preventDefault(e); return;} + + if (!focused) onFocus(); + + var now = +new Date; + if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) { + e_preventDefault(e); + setTimeout(focusInput, 20); + return selectLine(start.line); + } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) { + lastDoubleClick = {time: now, pos: start}; + e_preventDefault(e); + return selectWordAt(start); + } else { lastClick = {time: now, pos: start}; } + + var last = start, going; + if (options.dragDrop && dragAndDrop && !options.readOnly && !posEq(sel.from, sel.to) && + !posLess(start, sel.from) && !posLess(sel.to, start)) { + // Let the drag handler handle this. + if (webkit) scroller.draggable = true; + function dragEnd(e2) { + if (webkit) scroller.draggable = false; + draggingText = false; + up(); drop(); + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { + e_preventDefault(e2); + setCursor(start.line, start.ch, true); + focusInput(); + } + } + var up = connect(document, "mouseup", operation(dragEnd), true); + var drop = connect(scroller, "drop", operation(dragEnd), true); + draggingText = true; + // IE's approach to draggable + if (scroller.dragDrop) scroller.dragDrop(); + return; + } + e_preventDefault(e); + setCursor(start.line, start.ch, true); + + function extend(e) { + var cur = posFromMouse(e, true); + if (cur && !posEq(cur, last)) { + if (!focused) onFocus(); + last = cur; + setSelectionUser(start, cur); + updateInput = false; + var visible = visibleLines(); + if (cur.line >= visible.to || cur.line < visible.from) + going = setTimeout(operation(function(){extend(e);}), 150); + } + } + + function done(e) { + clearTimeout(going); + var cur = posFromMouse(e); + if (cur) setSelectionUser(start, cur); + e_preventDefault(e); + focusInput(); + updateInput = true; + move(); up(); + } + var move = connect(document, "mousemove", operation(function(e) { + clearTimeout(going); + e_preventDefault(e); + if (!ie && !e_button(e)) done(e); + else extend(e); + }), true); + var up = connect(document, "mouseup", operation(done), true); + } + function onDoubleClick(e) { + for (var n = e_target(e); n != wrapper; n = n.parentNode) + if (n.parentNode == gutterText) return e_preventDefault(e); + var start = posFromMouse(e); + if (!start) return; + lastDoubleClick = {time: +new Date, pos: start}; + e_preventDefault(e); + selectWordAt(start); + } + function onDrop(e) { + if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return; + e.preventDefault(); + var pos = posFromMouse(e, true), files = e.dataTransfer.files; + if (!pos || options.readOnly) return; + if (files && files.length && window.FileReader && window.File) { + function loadFile(file, i) { + var reader = new FileReader; + reader.onload = function() { + text[i] = reader.result; + if (++read == n) { + pos = clipPos(pos); + operation(function() { + var end = replaceRange(text.join(""), pos, pos); + setSelectionUser(pos, end); + })(); + } + }; + reader.readAsText(file); + } + var n = files.length, text = Array(n), read = 0; + for (var i = 0; i < n; ++i) loadFile(files[i], i); + } else { + // Don't do a replace if the drop happened inside of the selected text. + if (draggingText && !(posLess(pos, sel.from) || posLess(sel.to, pos))) return; + try { + var text = e.dataTransfer.getData("Text"); + if (text) { + compoundChange(function() { + var curFrom = sel.from, curTo = sel.to; + setSelectionUser(pos, pos); + if (draggingText) replaceRange("", curFrom, curTo); + replaceSelection(text); + focusInput(); + }); + } + } + catch(e){} + } + } + function onDragStart(e) { + var txt = getSelection(); + e.dataTransfer.setData("Text", txt); + + // Use dummy image instead of default browsers image. + if (gecko || chrome || opera) { + var img = document.createElement('img'); + img.scr = 'data:image/gif;base64,R0lGODdhAgACAIAAAAAAAP///ywAAAAAAgACAAACAoRRADs='; //1x1 image + e.dataTransfer.setDragImage(img, 0, 0); + } + } + + function doHandleBinding(bound, dropShift) { + if (typeof bound == "string") { + bound = commands[bound]; + if (!bound) return false; + } + var prevShift = shiftSelecting; + try { + if (options.readOnly) suppressEdits = true; + if (dropShift) shiftSelecting = null; + bound(instance); + } catch(e) { + if (e != Pass) throw e; + return false; + } finally { + shiftSelecting = prevShift; + suppressEdits = false; + } + return true; + } + function handleKeyBinding(e) { + // Handle auto keymap transitions + var startMap = getKeyMap(options.keyMap), next = startMap.auto; + clearTimeout(maybeTransition); + if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() { + if (getKeyMap(options.keyMap) == startMap) { + options.keyMap = (next.call ? next.call(null, instance) : next); + } + }, 50); + + var name = keyNames[e_prop(e, "keyCode")], handled = false; + if (name == null || e.altGraphKey) return false; + if (e_prop(e, "altKey")) name = "Alt-" + name; + if (e_prop(e, "ctrlKey")) name = "Ctrl-" + name; + if (e_prop(e, "metaKey")) name = "Cmd-" + name; + + var stopped = false; + function stop() { stopped = true; } + + if (e_prop(e, "shiftKey")) { + handled = lookupKey("Shift-" + name, options.extraKeys, options.keyMap, + function(b) {return doHandleBinding(b, true);}, stop) + || lookupKey(name, options.extraKeys, options.keyMap, function(b) { + if (typeof b == "string" && /^go[A-Z]/.test(b)) return doHandleBinding(b); + }, stop); + } else { + handled = lookupKey(name, options.extraKeys, options.keyMap, doHandleBinding, stop); + } + if (stopped) handled = false; + if (handled) { + e_preventDefault(e); + restartBlink(); + if (ie) { e.oldKeyCode = e.keyCode; e.keyCode = 0; } + } + return handled; + } + function handleCharBinding(e, ch) { + var handled = lookupKey("'" + ch + "'", options.extraKeys, + options.keyMap, function(b) { return doHandleBinding(b, true); }); + if (handled) { + e_preventDefault(e); + restartBlink(); + } + return handled; + } + + var lastStoppedKey = null, maybeTransition; + function onKeyDown(e) { + if (!focused) onFocus(); + if (ie && e.keyCode == 27) { e.returnValue = false; } + if (pollingFast) { if (readInput()) pollingFast = false; } + if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; + var code = e_prop(e, "keyCode"); + // IE does strange things with escape. + setShift(code == 16 || e_prop(e, "shiftKey")); + // First give onKeyEvent option a chance to handle this. + var handled = handleKeyBinding(e); + if (opera) { + lastStoppedKey = handled ? code : null; + // Opera has no cut event... we try to at least catch the key combo + if (!handled && code == 88 && e_prop(e, mac ? "metaKey" : "ctrlKey")) + replaceSelection(""); + } + } + function onKeyPress(e) { + if (pollingFast) readInput(); + if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; + var keyCode = e_prop(e, "keyCode"), charCode = e_prop(e, "charCode"); + if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} + if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(e)) return; + var ch = String.fromCharCode(charCode == null ? keyCode : charCode); + if (options.electricChars && mode.electricChars && options.smartIndent && !options.readOnly) { + if (mode.electricChars.indexOf(ch) > -1) + setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75); + } + if (handleCharBinding(e, ch)) return; + fastPoll(); + } + function onKeyUp(e) { + if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; + if (e_prop(e, "keyCode") == 16) shiftSelecting = null; + } + + function onFocus() { + if (options.readOnly == "nocursor") return; + if (!focused) { + if (options.onFocus) options.onFocus(instance); + focused = true; + if (scroller.className.search(/\bCodeMirror-focused\b/) == -1) + scroller.className += " CodeMirror-focused"; + if (!leaveInputAlone) resetInput(true); + } + slowPoll(); + restartBlink(); + } + function onBlur() { + if (focused) { + if (options.onBlur) options.onBlur(instance); + focused = false; + if (bracketHighlighted) + operation(function(){ + if (bracketHighlighted) { bracketHighlighted(); bracketHighlighted = null; } + })(); + scroller.className = scroller.className.replace(" CodeMirror-focused", ""); + } + clearInterval(blinker); + setTimeout(function() {if (!focused) shiftSelecting = null;}, 150); + } + + function chopDelta(delta) { + // Make sure we always scroll a little bit for any nonzero delta. + if (delta > 0.0 && delta < 1.0) return 1; + else if (delta > -1.0 && delta < 0.0) return -1; + else return Math.round(delta); + } + + function onMouseWheel(e) { + var deltaX = 0, deltaY = 0; + if (e.type == "DOMMouseScroll") { // Firefox + var delta = -e.detail * 8.0; + if (e.axis == e.HORIZONTAL_AXIS) deltaX = delta; + else if (e.axis == e.VERTICAL_AXIS) deltaY = delta; + } else if (e.wheelDeltaX !== undefined && e.wheelDeltaY !== undefined) { // WebKit + deltaX = e.wheelDeltaX / 3.0; + deltaY = e.wheelDeltaY / 3.0; + } else if (e.wheelDelta !== undefined) { // IE or Opera + deltaY = e.wheelDelta / 3.0; + } + + var scrolled = false; + deltaX = chopDelta(deltaX); + deltaY = chopDelta(deltaY); + if ((deltaX > 0 && scroller.scrollLeft > 0) || + (deltaX < 0 && scroller.scrollLeft + scroller.clientWidth < scroller.scrollWidth)) { + scroller.scrollLeft -= deltaX; + scrolled = true; + } + if ((deltaY > 0 && scrollbar.scrollTop > 0) || + (deltaY < 0 && scrollbar.scrollTop + scrollbar.clientHeight < scrollbar.scrollHeight)) { + scrollbar.scrollTop -= deltaY; + scrolled = true; + } + if (scrolled) e_stop(e); + } + + // Replace the range from from to to by the strings in newText. + // Afterwards, set the selection to selFrom, selTo. + function updateLines(from, to, newText, selFrom, selTo) { + if (suppressEdits) return; + if (history) { + var old = []; + doc.iter(from.line, to.line + 1, function(line) { old.push(line.text); }); + history.addChange(from.line, newText.length, old); + while (history.done.length > options.undoDepth) history.done.shift(); + } + updateLinesNoUndo(from, to, newText, selFrom, selTo); + } + function unredoHelper(from, to) { + if (!from.length) return; + var set = from.pop(), out = []; + for (var i = set.length - 1; i >= 0; i -= 1) { + var change = set[i]; + var replaced = [], end = change.start + change.added; + doc.iter(change.start, end, function(line) { replaced.push(line.text); }); + out.push({start: change.start, added: change.old.length, old: replaced}); + var pos = {line: change.start + change.old.length - 1, + ch: editEnd(replaced[replaced.length-1], change.old[change.old.length-1])}; + updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: getLine(end-1).text.length}, change.old, pos, pos); + } + updateInput = true; + to.push(out); + } + function undo() {unredoHelper(history.done, history.undone);} + function redo() {unredoHelper(history.undone, history.done);} + + function updateLinesNoUndo(from, to, newText, selFrom, selTo) { + if (suppressEdits) return; + var recomputeMaxLength = false, maxLineLength = maxLine.length; + if (!options.lineWrapping) + doc.iter(from.line, to.line + 1, function(line) { + if (!line.hidden && line.text.length == maxLineLength) {recomputeMaxLength = true; return true;} + }); + if (from.line != to.line || newText.length > 1) gutterDirty = true; + + var nlines = to.line - from.line, firstLine = getLine(from.line), lastLine = getLine(to.line); + // First adjust the line structure, taking some care to leave highlighting intact. + if (from.ch == 0 && to.ch == 0 && newText[newText.length - 1] == "") { + // This is a whole-line replace. Treated specially to make + // sure line objects move the way they are supposed to. + var added = [], prevLine = null; + if (from.line) { + prevLine = getLine(from.line - 1); + prevLine.fixMarkEnds(lastLine); + } else lastLine.fixMarkStarts(); + for (var i = 0, e = newText.length - 1; i < e; ++i) + added.push(Line.inheritMarks(newText[i], prevLine)); + if (nlines) doc.remove(from.line, nlines, callbacks); + if (added.length) doc.insert(from.line, added); + } else if (firstLine == lastLine) { + if (newText.length == 1) + firstLine.replace(from.ch, to.ch, newText[0]); + else { + lastLine = firstLine.split(to.ch, newText[newText.length-1]); + firstLine.replace(from.ch, null, newText[0]); + firstLine.fixMarkEnds(lastLine); + var added = []; + for (var i = 1, e = newText.length - 1; i < e; ++i) + added.push(Line.inheritMarks(newText[i], firstLine)); + added.push(lastLine); + doc.insert(from.line + 1, added); + } + } else if (newText.length == 1) { + firstLine.replace(from.ch, null, newText[0]); + lastLine.replace(null, to.ch, ""); + firstLine.append(lastLine); + doc.remove(from.line + 1, nlines, callbacks); + } else { + var added = []; + firstLine.replace(from.ch, null, newText[0]); + lastLine.replace(null, to.ch, newText[newText.length-1]); + firstLine.fixMarkEnds(lastLine); + for (var i = 1, e = newText.length - 1; i < e; ++i) + added.push(Line.inheritMarks(newText[i], firstLine)); + if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks); + doc.insert(from.line + 1, added); + } + if (options.lineWrapping) { + var perLine = Math.max(5, scroller.clientWidth / charWidth() - 3); + doc.iter(from.line, from.line + newText.length, function(line) { + if (line.hidden) return; + var guess = Math.ceil(line.text.length / perLine) || 1; + if (guess != line.height) updateLineHeight(line, guess); + }); + } else { + doc.iter(from.line, from.line + newText.length, function(line) { + var l = line.text; + if (!line.hidden && l.length > maxLineLength) { + maxLine = l; maxLineLength = l.length; maxLineChanged = true; + recomputeMaxLength = false; + } + }); + if (recomputeMaxLength) updateMaxLine = true; + } + + // Add these lines to the work array, so that they will be + // highlighted. Adjust work lines if lines were added/removed. + var newWork = [], lendiff = newText.length - nlines - 1; + for (var i = 0, l = work.length; i < l; ++i) { + var task = work[i]; + if (task < from.line) newWork.push(task); + else if (task > to.line) newWork.push(task + lendiff); + } + var hlEnd = from.line + Math.min(newText.length, 500); + highlightLines(from.line, hlEnd); + newWork.push(hlEnd); + work = newWork; + startWorker(100); + // Remember that these lines changed, for updating the display + changes.push({from: from.line, to: to.line + 1, diff: lendiff}); + var changeObj = {from: from, to: to, text: newText}; + if (textChanged) { + for (var cur = textChanged; cur.next; cur = cur.next) {} + cur.next = changeObj; + } else textChanged = changeObj; + + // Update the selection + function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;} + setSelection(clipPos(selFrom), clipPos(selTo), + updateLine(sel.from.line), updateLine(sel.to.line)); + } + + function updateVerticalScroll(scrollTop) { + var th = textHeight(), virtualHeight = Math.floor(doc.height * th + 2 * paddingTop()), scrollbarHeight = scroller.clientHeight; + scrollbar.style.height = scrollbarHeight + "px"; + if (scroller.clientHeight) + scrollbarInner.style.height = virtualHeight + "px"; + // Position the mover div to align with the current virtual scroll position + if (scrollTop != null) scrollbar.scrollTop = scrollTop; + mover.style.top = (displayOffset * th - scrollbar.scrollTop) + "px"; + scrollbar.style.display = (virtualHeight > scrollbarHeight) ? "block" : "none"; + } + + // On Mac OS X Lion and up, detect whether the mouse is plugged in by measuring + // the width of a div with a scrollbar in it. If the width is <= 1, then + // the mouse isn't plugged in and scrollbars should overlap the content. + function overlapScrollbars() { + var tmpSb = document.createElement('div'), + tmpSbInner = document.createElement('div'); + tmpSb.className = "CodeMirror-scrollbar"; + tmpSb.style.cssText = "position: absolute; left: -9999px; height: 100px;"; + tmpSbInner.className = "CodeMirror-scrollbar-inner"; + tmpSbInner.style.height = "200px"; + tmpSb.appendChild(tmpSbInner); + + document.body.appendChild(tmpSb); + var result = (tmpSb.offsetWidth <= 1); + document.body.removeChild(tmpSb); + return result; + } + + function computeMaxLength() { + var maxLineLength = 0; + maxLine = ""; maxLineChanged = true; + doc.iter(0, doc.size, function(line) { + var l = line.text; + if (!line.hidden && l.length > maxLineLength) { + maxLineLength = l.length; maxLine = l; + } + }); + updateMaxLine = false; + } + + function replaceRange(code, from, to) { + from = clipPos(from); + if (!to) to = from; else to = clipPos(to); + code = splitLines(code); + function adjustPos(pos) { + if (posLess(pos, from)) return pos; + if (!posLess(to, pos)) return end; + var line = pos.line + code.length - (to.line - from.line) - 1; + var ch = pos.ch; + if (pos.line == to.line) + ch += code[code.length-1].length - (to.ch - (to.line == from.line ? from.ch : 0)); + return {line: line, ch: ch}; + } + var end; + replaceRange1(code, from, to, function(end1) { + end = end1; + return {from: adjustPos(sel.from), to: adjustPos(sel.to)}; + }); + return end; + } + function replaceSelection(code, collapse) { + replaceRange1(splitLines(code), sel.from, sel.to, function(end) { + if (collapse == "end") return {from: end, to: end}; + else if (collapse == "start") return {from: sel.from, to: sel.from}; + else return {from: sel.from, to: end}; + }); + } + function replaceRange1(code, from, to, computeSel) { + var endch = code.length == 1 ? code[0].length + from.ch : code[code.length-1].length; + var newSel = computeSel({line: from.line + code.length - 1, ch: endch}); + updateLines(from, to, code, newSel.from, newSel.to); + } + + function getRange(from, to) { + var l1 = from.line, l2 = to.line; + if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch); + var code = [getLine(l1).text.slice(from.ch)]; + doc.iter(l1 + 1, l2, function(line) { code.push(line.text); }); + code.push(getLine(l2).text.slice(0, to.ch)); + return code.join("\n"); + } + function getSelection() { + return getRange(sel.from, sel.to); + } + + var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll + function slowPoll() { + if (pollingFast) return; + poll.set(options.pollInterval, function() { + startOperation(); + readInput(); + if (focused) slowPoll(); + endOperation(); + }); + } + function fastPoll() { + var missed = false; + pollingFast = true; + function p() { + startOperation(); + var changed = readInput(); + if (!changed && !missed) {missed = true; poll.set(60, p);} + else {pollingFast = false; slowPoll();} + endOperation(); + } + poll.set(20, p); + } + + // Previnput is a hack to work with IME. If we reset the textarea + // on every change, that breaks IME. So we look for changes + // compared to the previous content instead. (Modern browsers have + // events that indicate IME taking place, but these are not widely + // supported or compatible enough yet to rely on.) + var prevInput = ""; + function readInput() { + if (leaveInputAlone || !focused || hasSelection(input) || options.readOnly) return false; + var text = input.value; + if (text == prevInput) return false; + shiftSelecting = null; + var same = 0, l = Math.min(prevInput.length, text.length); + while (same < l && prevInput[same] == text[same]) ++same; + if (same < prevInput.length) + sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)}; + else if (overwrite && posEq(sel.from, sel.to)) + sel.to = {line: sel.to.line, ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same))}; + replaceSelection(text.slice(same), "end"); + if (text.length > 1000) { input.value = prevInput = ""; } + else prevInput = text; + return true; + } + function resetInput(user) { + if (!posEq(sel.from, sel.to)) { + prevInput = ""; + input.value = getSelection(); + selectInput(input); + } else if (user) prevInput = input.value = ""; + } + + function focusInput() { + if (options.readOnly != "nocursor") input.focus(); + } + + function scrollEditorIntoView() { + if (!cursor.getBoundingClientRect) return; + var rect = cursor.getBoundingClientRect(); + // IE returns bogus coordinates when the instance sits inside of an iframe and the cursor is hidden + if (ie && rect.top == rect.bottom) return; + var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight); + if (rect.top < 0 || rect.bottom > winH) scrollCursorIntoView(); + } + function scrollCursorIntoView() { + var coords = calculateCursorCoords(); + return scrollIntoView(coords.x, coords.y, coords.x, coords.yBot); + } + function calculateCursorCoords() { + var cursor = localCoords(sel.inverted ? sel.from : sel.to); + var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x; + return {x: x, y: cursor.y, yBot: cursor.yBot}; + } + function scrollIntoView(x1, y1, x2, y2) { + var scrollPos = calculateScrollPos(x1, y1, x2, y2), scrolled = false; + if (scrollPos.scrollLeft != null) {scroller.scrollLeft = scrollPos.scrollLeft; scrolled = true;} + if (scrollPos.scrollTop != null) {scrollbar.scrollTop = scrollPos.scrollTop; scrolled = true;} + if (scrolled && options.onScroll) options.onScroll(instance); + } + function calculateScrollPos(x1, y1, x2, y2) { + var pl = paddingLeft(), pt = paddingTop(); + y1 += pt; y2 += pt; x1 += pl; x2 += pl; + var screen = scroller.clientHeight, screentop = scrollbar.scrollTop, result = {}; + var atTop = y1 < paddingTop() + 10; + if (y1 < screentop) result.scrollTop = atTop ? 0 : Math.max(0, y1); + else if (y2 > screentop + screen) result.scrollTop = y2 - screen; + + var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft; + var gutterw = options.fixedGutter ? gutter.clientWidth : 0; + var atLeft = x1 < gutterw + pl + 10; + if (x1 < screenleft + gutterw || atLeft) { + if (atLeft) x1 = 0; + result.scrollLeft = Math.max(0, x1 - 10 - gutterw); + } else if (x2 > screenw + screenleft - 3) { + result.scrollLeft = x2 + 10 - screenw; + } + return result; + } + + function visibleLines(scrollTop) { + var lh = textHeight(), top = (scrollTop != null ? scrollTop : scrollbar.scrollTop) - paddingTop(); + var fromHeight = Math.max(0, Math.floor(top / lh)); + var toHeight = Math.ceil((top + scroller.clientHeight) / lh); + return {from: lineAtHeight(doc, fromHeight), + to: lineAtHeight(doc, toHeight)}; + } + // Uses a set of changes plus the current scroll position to + // determine which DOM updates have to be made, and makes the + // updates. + function updateDisplay(changes, suppressCallback, scrollTop) { + if (!scroller.clientWidth) { + showingFrom = showingTo = displayOffset = 0; + return; + } + // Compute the new visible window + // If scrollTop is specified, use that to determine which lines + // to render instead of the current scrollbar position. + var visible = visibleLines(scrollTop); + // Bail out if the visible area is already rendered and nothing changed. + if (changes !== true && changes.length == 0 && visible.from > showingFrom && visible.to < showingTo) { + updateVerticalScroll(scrollTop); + return; + } + var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100); + if (showingFrom < from && from - showingFrom < 20) from = showingFrom; + if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo); + + // Create a range of theoretically intact lines, and punch holes + // in that using the change info. + var intact = changes === true ? [] : + computeIntact([{from: showingFrom, to: showingTo, domStart: 0}], changes); + // Clip off the parts that won't be visible + var intactLines = 0; + for (var i = 0; i < intact.length; ++i) { + var range = intact[i]; + if (range.from < from) {range.domStart += (from - range.from); range.from = from;} + if (range.to > to) range.to = to; + if (range.from >= range.to) intact.splice(i--, 1); + else intactLines += range.to - range.from; + } + if (intactLines == to - from && from == showingFrom && to == showingTo) { + updateVerticalScroll(scrollTop); + return; + } + intact.sort(function(a, b) {return a.domStart - b.domStart;}); + + var th = textHeight(), gutterDisplay = gutter.style.display; + lineDiv.style.display = "none"; + patchDisplay(from, to, intact); + lineDiv.style.display = gutter.style.display = ""; + + var different = from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th; + // This is just a bogus formula that detects when the editor is + // resized or the font size changes. + if (different) lastSizeC = scroller.clientHeight + th; + showingFrom = from; showingTo = to; + displayOffset = heightAtLine(doc, from); + + // Since this is all rather error prone, it is honoured with the + // only assertion in the whole file. + if (lineDiv.childNodes.length != showingTo - showingFrom) + throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (showingTo - showingFrom) + + " nodes=" + lineDiv.childNodes.length); + + function checkHeights() { + var curNode = lineDiv.firstChild, heightChanged = false; + doc.iter(showingFrom, showingTo, function(line) { + if (!line.hidden) { + var height = Math.round(curNode.offsetHeight / th) || 1; + if (line.height != height) { + updateLineHeight(line, height); + gutterDirty = heightChanged = true; + } + } + curNode = curNode.nextSibling; + }); + return heightChanged; + } + + if (options.lineWrapping) { + // Guess whether we're going to need the scrollbar, so that we don't end up changing the linewrapping + // after the scrollbar appears (during updateVerticalScroll()). Only do this if the scrollbar is + // appearing (if it's disappearing, we don't have to worry about the scroll position, and there are + // issues on IE7 if we turn it off too early). + var virtualHeight = Math.floor(doc.height * th + 2 * paddingTop()), scrollbarHeight = scroller.clientHeight; + if (virtualHeight > scrollbarHeight) scrollbar.style.display = "block"; + checkHeights(); + } + + gutter.style.display = gutterDisplay; + if (different || gutterDirty) { + // If the gutter grew in size, re-check heights. If those changed, re-draw gutter. + updateGutter() && options.lineWrapping && checkHeights() && updateGutter(); + } + updateSelection(); + updateVerticalScroll(scrollTop); + if (!suppressCallback && options.onUpdate) options.onUpdate(instance); + return true; + } + + function computeIntact(intact, changes) { + for (var i = 0, l = changes.length || 0; i < l; ++i) { + var change = changes[i], intact2 = [], diff = change.diff || 0; + for (var j = 0, l2 = intact.length; j < l2; ++j) { + var range = intact[j]; + if (change.to <= range.from && change.diff) + intact2.push({from: range.from + diff, to: range.to + diff, + domStart: range.domStart}); + else if (change.to <= range.from || change.from >= range.to) + intact2.push(range); + else { + if (change.from > range.from) + intact2.push({from: range.from, to: change.from, domStart: range.domStart}); + if (change.to < range.to) + intact2.push({from: change.to + diff, to: range.to + diff, + domStart: range.domStart + (change.to - range.from)}); + } + } + intact = intact2; + } + return intact; + } + + function patchDisplay(from, to, intact) { + // The first pass removes the DOM nodes that aren't intact. + if (!intact.length) lineDiv.innerHTML = ""; + else { + function killNode(node) { + var tmp = node.nextSibling; + node.parentNode.removeChild(node); + return tmp; + } + var domPos = 0, curNode = lineDiv.firstChild, n; + for (var i = 0; i < intact.length; ++i) { + var cur = intact[i]; + while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;} + for (var j = 0, e = cur.to - cur.from; j < e; ++j) {curNode = curNode.nextSibling; domPos++;} + } + while (curNode) curNode = killNode(curNode); + } + // This pass fills in the lines that actually changed. + var nextIntact = intact.shift(), curNode = lineDiv.firstChild, j = from; + var scratch = document.createElement("div"); + doc.iter(from, to, function(line) { + if (nextIntact && nextIntact.to == j) nextIntact = intact.shift(); + if (!nextIntact || nextIntact.from > j) { + if (line.hidden) var html = scratch.innerHTML = "
";
+          else {
+            var html = ''
+              + line.getHTML(makeTab) + '';
+            // Kludge to make sure the styled element lies behind the selection (by z-index)
+            if (line.bgClassName)
+              html = '
 
' + html + "
";
+          }
+          scratch.innerHTML = html;
+          lineDiv.insertBefore(scratch.firstChild, curNode);
+        } else {
+          curNode = curNode.nextSibling;
+        }
+        ++j;
+      });
+    }
+
+    function updateGutter() {
+      if (!options.gutter && !options.lineNumbers) return;
+      var hText = mover.offsetHeight, hEditor = scroller.clientHeight;
+      gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
+      var html = [], i = showingFrom, normalNode;
+      doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
+        if (line.hidden) {
+          html.push("
");
+        } else {
+          var marker = line.gutterMarker;
+          var text = options.lineNumbers ? i + options.firstLineNumber : null;
+          if (marker && marker.text)
+            text = marker.text.replace("%N%", text != null ? text : "");
+          else if (text == null)
+            text = "\u00a0";
+          html.push((marker && marker.style ? '
' : "
"), text);
+          for (var j = 1; j < line.height; ++j) html.push("
 ");
+          html.push("
");
+          if (!marker) normalNode = i;
+        }
+        ++i;
+      });
+      gutter.style.display = "none";
+      gutterText.innerHTML = html.join("");
+      // Make sure scrolling doesn't cause number gutter size to pop
+      if (normalNode != null && options.lineNumbers) {
+        var node = gutterText.childNodes[normalNode - showingFrom];
+        var minwidth = String(doc.size).length, val = eltText(node.firstChild), pad = "";
+        while (val.length + pad.length < minwidth) pad += "\u00a0";
+        if (pad) node.insertBefore(document.createTextNode(pad), node.firstChild);
+      }
+      gutter.style.display = "";
+      var resized = Math.abs((parseInt(lineSpace.style.marginLeft) || 0) - gutter.offsetWidth) > 2;
+      lineSpace.style.marginLeft = gutter.offsetWidth + "px";
+      gutterDirty = false;
+      return resized;
+    }
+    function updateSelection() {
+      var collapsed = posEq(sel.from, sel.to);
+      var fromPos = localCoords(sel.from, true);
+      var toPos = collapsed ? fromPos : localCoords(sel.to, true);
+      var headPos = sel.inverted ? fromPos : toPos, th = textHeight();
+      var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv);
+      inputDiv.style.top = Math.max(0, Math.min(scroller.offsetHeight, headPos.y + lineOff.top - wrapOff.top)) + "px";
+      inputDiv.style.left = Math.max(0, Math.min(scroller.offsetWidth, headPos.x + lineOff.left - wrapOff.left)) + "px";
+      if (collapsed) {
+        cursor.style.top = headPos.y + "px";
+        cursor.style.left = (options.lineWrapping ? Math.min(headPos.x, lineSpace.offsetWidth) : headPos.x) + "px";
+        cursor.style.display = "";
+        selectionDiv.style.display = "none";
+      } else {
+        var sameLine = fromPos.y == toPos.y, html = "";
+        var clientWidth = lineSpace.clientWidth || lineSpace.offsetWidth;
+        var clientHeight = lineSpace.clientHeight || lineSpace.offsetHeight;
+        function add(left, top, right, height) {
+          var rstyle = quirksMode ? "width: " + (!right ? clientWidth : clientWidth - right - left) + "px"
+                                  : "right: " + right + "px";
+          html += '
';
+        }
+        if (sel.from.ch && fromPos.y >= 0) {
+          var right = sameLine ? clientWidth - toPos.x : 0;
+          add(fromPos.x, fromPos.y, right, th);
+        }
+        var middleStart = Math.max(0, fromPos.y + (sel.from.ch ? th : 0));
+        var middleHeight = Math.min(toPos.y, clientHeight) - middleStart;
+        if (middleHeight > 0.2 * th)
+          add(0, middleStart, 0, middleHeight);
+        if ((!sameLine || !sel.from.ch) && toPos.y < clientHeight - .5 * th)
+          add(0, toPos.y, clientWidth - toPos.x, th);
+        selectionDiv.innerHTML = html;
+        cursor.style.display = "none";
+        selectionDiv.style.display = "";
+      }
+    }
+
+    function setShift(val) {
+      if (val) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
+      else shiftSelecting = null;
+    }
+    function setSelectionUser(from, to) {
+      var sh = shiftSelecting && clipPos(shiftSelecting);
+      if (sh) {
+        if (posLess(sh, from)) from = sh;
+        else if (posLess(to, sh)) to = sh;
+      }
+      setSelection(from, to);
+      userSelChange = true;
+    }
+    // Update the selection. Last two args are only used by
+    // updateLines, since they have to be expressed in the line
+    // numbers before the update.
+    function setSelection(from, to, oldFrom, oldTo) {
+      goalColumn = null;
+      if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
+      if (posEq(sel.from, from) && posEq(sel.to, to)) return;
+      if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
+
+      // Skip over hidden lines.
+      if (from.line != oldFrom) {
+        var from1 = skipHidden(from, oldFrom, sel.from.ch);
+        // If there is no non-hidden line left, force visibility on current line
+        if (!from1) setLineHidden(from.line, false);
+        else from = from1;
+      }
+      if (to.line != oldTo) to = skipHidden(to, oldTo, sel.to.ch);
+
+      if (posEq(from, to)) sel.inverted = false;
+      else if (posEq(from, sel.to)) sel.inverted = false;
+      else if (posEq(to, sel.from)) sel.inverted = true;
+
+      if (options.autoClearEmptyLines && posEq(sel.from, sel.to)) {
+        var head = sel.inverted ? from : to;
+        if (head.line != sel.from.line && sel.from.line < doc.size) {
+          var oldLine = getLine(sel.from.line);
+          if (/^\s+$/.test(oldLine.text))
+            setTimeout(operation(function() {
+              if (oldLine.parent && /^\s+$/.test(oldLine.text)) {
+                var no = lineNo(oldLine);
+                replaceRange("", {line: no, ch: 0}, {line: no, ch: oldLine.text.length});
+              }
+            }, 10));
+        }
+      }
+
+      sel.from = from; sel.to = to;
+      selectionChanged = true;
+    }
+    function skipHidden(pos, oldLine, oldCh) {
+      function getNonHidden(dir) {
+        var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;
+        while (lNo != end) {
+          var line = getLine(lNo);
+          if (!line.hidden) {
+            var ch = pos.ch;
+            if (toEnd || ch > oldCh || ch > line.text.length) ch = line.text.length;
+            return {line: lNo, ch: ch};
+          }
+          lNo += dir;
+        }
+      }
+      var line = getLine(pos.line);
+      var toEnd = pos.ch == line.text.length && pos.ch != oldCh;
+      if (!line.hidden) return pos;
+      if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);
+      else return getNonHidden(-1) || getNonHidden(1);
+    }
+    function setCursor(line, ch, user) {
+      var pos = clipPos({line: line, ch: ch || 0});
+      (user ? setSelectionUser : setSelection)(pos, pos);
+    }
+
+    function clipLine(n) {return Math.max(0, Math.min(n, doc.size-1));}
+    function clipPos(pos) {
+      if (pos.line < 0) return {line: 0, ch: 0};
+      if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc.size-1).text.length};
+      var ch = pos.ch, linelen = getLine(pos.line).text.length;
+      if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};
+      else if (ch < 0) return {line: pos.line, ch: 0};
+      else return pos;
+    }
+
+    function findPosH(dir, unit) {
+      var end = sel.inverted ? sel.from : sel.to, line = end.line, ch = end.ch;
+      var lineObj = getLine(line);
+      function findNextLine() {
+        for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {
+          var lo = getLine(l);
+          if (!lo.hidden) { line = l; lineObj = lo; return true; }
+        }
+      }
+      function moveOnce(boundToLine) {
+        if (ch == (dir < 0 ? 0 : lineObj.text.length)) {
+          if (!boundToLine && findNextLine()) ch = dir < 0 ? lineObj.text.length : 0;
+          else return false;
+        } else ch += dir;
+        return true;
+      }
+      if (unit == "char") moveOnce();
+      else if (unit == "column") moveOnce(true);
+      else if (unit == "word") {
+        var sawWord = false;
+        for (;;) {
+          if (dir < 0) if (!moveOnce()) break;
+          if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;
+          else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}
+          if (dir > 0) if (!moveOnce()) break;
+        }
+      }
+      return {line: line, ch: ch};
+    }
+    function moveH(dir, unit) {
+      var pos = dir < 0 ? sel.from : sel.to;
+      if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit);
+      setCursor(pos.line, pos.ch, true);
+    }
+    function deleteH(dir, unit) {
+      if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to);
+      else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to);
+      else replaceRange("", sel.from, findPosH(dir, unit));
+      userSelChange = true;
+    }
+    var goalColumn = null;
+    function moveV(dir, unit) {
+      var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true);
+      if (goalColumn != null) pos.x = goalColumn;
+      if (unit == "page") dist = Math.min(scroller.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+      else if (unit == "line") dist = textHeight();
+      var target = coordsChar(pos.x, pos.y + dist * dir + 2);
+      if (unit == "page") scrollbar.scrollTop += localCoords(target, true).y - pos.y;
+      setCursor(target.line, target.ch, true);
+      goalColumn = pos.x;
+    }
+
+    function selectWordAt(pos) {
+      var line = getLine(pos.line).text;
+      var start = pos.ch, end = pos.ch;
+      while (start > 0 && isWordChar(line.charAt(start - 1))) --start;
+      while (end < line.length && isWordChar(line.charAt(end))) ++end;
+      setSelectionUser({line: pos.line, ch: start}, {line: pos.line, ch: end});
+    }
+    function selectLine(line) {
+      setSelectionUser({line: line, ch: 0}, clipPos({line: line + 1, ch: 0}));
+    }
+    function indentSelected(mode) {
+      if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
+      var e = sel.to.line - (sel.to.ch ? 0 : 1);
+      for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);
+    }
+
+    function indentLine(n, how) {
+      if (!how) how = "add";
+      if (how == "smart") {
+        if (!mode.indent) how = "prev";
+        else var state = getStateBefore(n);
+      }
+
+      var line = getLine(n), curSpace = line.indentation(options.tabSize),
+          curSpaceString = line.text.match(/^\s*/)[0], indentation;
+      if (how == "smart") {
+        indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+        if (indentation == Pass) how = "prev";
+      }
+      if (how == "prev") {
+        if (n) indentation = getLine(n-1).indentation(options.tabSize);
+        else indentation = 0;
+      }
+      else if (how == "add") indentation = curSpace + options.indentUnit;
+      else if (how == "subtract") indentation = curSpace - options.indentUnit;
+      indentation = Math.max(0, indentation);
+      var diff = indentation - curSpace;
+
+      if (!diff) {
+        if (sel.from.line != n && sel.to.line != n) return;
+        var indentString = curSpaceString;
+      } else {
+        var indentString = "", pos = 0;
+        if (options.indentWithTabs)
+          for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";}
+        while (pos < indentation) {++pos; indentString += " ";}
+      }
+
+      replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});
+    }
+
+    function loadMode() {
+      mode = CodeMirror.getMode(options, options.mode);
+      doc.iter(0, doc.size, function(line) { line.stateAfter = null; });
+      work = [0];
+      startWorker();
+    }
+    function gutterChanged() {
+      var visible = options.gutter || options.lineNumbers;
+      gutter.style.display = visible ? "" : "none";
+      if (visible) gutterDirty = true;
+      else lineDiv.parentNode.style.marginLeft = 0;
+    }
+    function wrappingChanged(from, to) {
+      if (options.lineWrapping) {
+        wrapper.className += " CodeMirror-wrap";
+        var perLine = scroller.clientWidth / charWidth() - 3;
+        doc.iter(0, doc.size, function(line) {
+          if (line.hidden) return;
+          var guess = Math.ceil(line.text.length / perLine) || 1;
+          if (guess != 1) updateLineHeight(line, guess);
+        });
+        lineSpace.style.width = code.style.width = "";
+        widthForcer.style.left = "";
+      } else {
+        wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
+        maxLine = ""; maxLineChanged = true;
+        doc.iter(0, doc.size, function(line) {
+          if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
+          if (line.text.length > maxLine.length) maxLine = line.text;
+        });
+      }
+      changes.push({from: 0, to: doc.size});
+    }
+    function makeTab(col) {
+      var w = options.tabSize - col % options.tabSize, cached = tabCache[w];
+      if (cached) return cached;
+      for (var str = '', i = 0; i < w; ++i) str += " ";
+      return (tabCache[w] = {html: str + "", width: w});
+    }
+    function themeChanged() {
+      scroller.className = scroller.className.replace(/\s*cm-s-\S+/g, "") +
+        options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+    }
+    function keyMapChanged() {
+      var style = keyMap[options.keyMap].style;
+      wrapper.className = wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
+        (style ? " cm-keymap-" + style : "");
+    }
+
+    function TextMarker() { this.set = []; }
+    TextMarker.prototype.clear = operation(function() {
+      var min = Infinity, max = -Infinity;
+      for (var i = 0, e = this.set.length; i < e; ++i) {
+        var line = this.set[i], mk = line.marked;
+        if (!mk || !line.parent) continue;
+        var lineN = lineNo(line);
+        min = Math.min(min, lineN); max = Math.max(max, lineN);
+        for (var j = 0; j < mk.length; ++j)
+          if (mk[j].marker == this) mk.splice(j--, 1);
+      }
+      if (min != Infinity)
+        changes.push({from: min, to: max + 1});
+    });
+    TextMarker.prototype.find = function() {
+      var from, to;
+      for (var i = 0, e = this.set.length; i < e; ++i) {
+        var line = this.set[i], mk = line.marked;
+        for (var j = 0; j < mk.length; ++j) {
+          var mark = mk[j];
+          if (mark.marker == this) {
+            if (mark.from != null || mark.to != null) {
+              var found = lineNo(line);
+              if (found != null) {
+                if (mark.from != null) from = {line: found, ch: mark.from};
+                if (mark.to != null) to = {line: found, ch: mark.to};
+              }
+            }
+          }
+        }
+      }
+      return {from: from, to: to};
+    };
+
+    function markText(from, to, className) {
+      from = clipPos(from); to = clipPos(to);
+      var tm = new TextMarker();
+      if (!posLess(from, to)) return tm;
+      function add(line, from, to, className) {
+        getLine(line).addMark(new MarkedText(from, to, className, tm));
+      }
+      if (from.line == to.line) add(from.line, from.ch, to.ch, className);
+      else {
+        add(from.line, from.ch, null, className);
+        for (var i = from.line + 1, e = to.line; i < e; ++i)
+          add(i, null, null, className);
+        add(to.line, null, to.ch, className);
+      }
+      changes.push({from: from.line, to: to.line + 1});
+      return tm;
+    }
+
+    function setBookmark(pos) {
+      pos = clipPos(pos);
+      var bm = new Bookmark(pos.ch);
+      getLine(pos.line).addMark(bm);
+      return bm;
+    }
+
+    function findMarksAt(pos) {
+      pos = clipPos(pos);
+      var markers = [], marked = getLine(pos.line).marked;
+      if (!marked) return markers;
+      for (var i = 0, e = marked.length; i < e; ++i) {
+        var m = marked[i];
+        if ((m.from == null || m.from <= pos.ch) &&
+            (m.to == null || m.to >= pos.ch))
+          markers.push(m.marker || m);
+      }
+      return markers;
+    }
+
+    function addGutterMarker(line, text, className) {
+      if (typeof line == "number") line = getLine(clipLine(line));
+      line.gutterMarker = {text: text, style: className};
+      gutterDirty = true;
+      return line;
+    }
+    function removeGutterMarker(line) {
+      if (typeof line == "number") line = getLine(clipLine(line));
+      line.gutterMarker = null;
+      gutterDirty = true;
+    }
+
+    function changeLine(handle, op) {
+      var no = handle, line = handle;
+      if (typeof handle == "number") line = getLine(clipLine(handle));
+      else no = lineNo(handle);
+      if (no == null) return null;
+      if (op(line, no)) changes.push({from: no, to: no + 1});
+      else return null;
+      return line;
+    }
+    function setLineClass(handle, className, bgClassName) {
+      return changeLine(handle, function(line) {
+        if (line.className != className || line.bgClassName != bgClassName) {
+          line.className = className;
+          line.bgClassName = bgClassName;
+          return true;
+        }
+      });
+    }
+    function setLineHidden(handle, hidden) {
+      return changeLine(handle, function(line, no) {
+        if (line.hidden != hidden) {
+          line.hidden = hidden;
+          if (!options.lineWrapping) {
+            var l = line.text;
+            if (hidden && l.length == maxLine.length) {
+              updateMaxLine = true;
+            } else if (!hidden && l.length > maxLine.length) {
+              maxLine = l; maxWidth = null; updateMaxLine = false;
+            }
+          }
+          updateLineHeight(line, hidden ? 0 : 1);
+          var fline = sel.from.line, tline = sel.to.line;
+          if (hidden && (fline == no || tline == no)) {
+            var from = fline == no ? skipHidden({line: fline, ch: 0}, fline, 0) : sel.from;
+            var to = tline == no ? skipHidden({line: tline, ch: 0}, tline, 0) : sel.to;
+            // Can't hide the last visible line, we'd have no place to put the cursor
+            if (!to) return;
+            setSelection(from, to);
+          }
+          return (gutterDirty = true);
+        }
+      });
+    }
+
+    function lineInfo(line) {
+      if (typeof line == "number") {
+        if (!isLine(line)) return null;
+        var n = line;
+        line = getLine(line);
+        if (!line) return null;
+      } else {
+        var n = lineNo(line);
+        if (n == null) return null;
+      }
+      var marker = line.gutterMarker;
+      return {line: n, handle: line, text: line.text, markerText: marker && marker.text,
+              markerClass: marker && marker.style, lineClass: line.className, bgClass: line.bgClassName};
+    }
+
+    function stringWidth(str) {
+      measure.innerHTML = "
x
";
+      measure.firstChild.firstChild.firstChild.nodeValue = str;
+      return measure.firstChild.firstChild.offsetWidth || 10;
+    }
+    // These are used to go from pixel positions to character
+    // positions, taking varying character widths into account.
+    function charFromX(line, x) {
+      if (x <= 0) return 0;
+      var lineObj = getLine(line), text = lineObj.text;
+      function getX(len) {
+        return measureLine(lineObj, len).left;
+      }
+      var from = 0, fromX = 0, to = text.length, toX;
+      // Guess a suitable upper bound for our search.
+      var estimated = Math.min(to, Math.ceil(x / charWidth()));
+      for (;;) {
+        var estX = getX(estimated);
+        if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
+        else {toX = estX; to = estimated; break;}
+      }
+      if (x > toX) return to;
+      // Try to guess a suitable lower bound as well.
+      estimated = Math.floor(to * 0.8); estX = getX(estimated);
+      if (estX < x) {from = estimated; fromX = estX;}
+      // Do a binary search between these bounds.
+      for (;;) {
+        if (to - from <= 1) return (toX - x > x - fromX) ? from : to;
+        var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
+        if (middleX > x) {to = middle; toX = middleX;}
+        else {from = middle; fromX = middleX;}
+      }
+    }
+
+    var tempId = "CodeMirror-temp-" + Math.floor(Math.random() * 0xffffff).toString(16);
+    function measureLine(line, ch) {
+      if (ch == 0) return {top: 0, left: 0};
+      var wbr = options.lineWrapping && ch < line.text.length &&
+                spanAffectsWrapping.test(line.text.slice(ch - 1, ch + 1));
+      measure.innerHTML = "
" + line.getHTML(makeTab, ch, tempId, wbr) + "
";
+      var elt = document.getElementById(tempId);
+      var top = elt.offsetTop, left = elt.offsetLeft;
+      // Older IEs report zero offsets for spans directly after a wrap
+      if (ie && top == 0 && left == 0) {
+        var backup = document.createElement("span");
+        backup.innerHTML = "x";
+        elt.parentNode.insertBefore(backup, elt.nextSibling);
+        top = backup.offsetTop;
+      }
+      return {top: top, left: left};
+    }
+    function localCoords(pos, inLineWrap) {
+      var x, lh = textHeight(), y = lh * (heightAtLine(doc, pos.line) - (inLineWrap ? displayOffset : 0));
+      if (pos.ch == 0) x = 0;
+      else {
+        var sp = measureLine(getLine(pos.line), pos.ch);
+        x = sp.left;
+        if (options.lineWrapping) y += Math.max(0, sp.top);
+      }
+      return {x: x, y: y, yBot: y + lh};
+    }
+    // Coords must be lineSpace-local
+    function coordsChar(x, y) {
+      if (y < 0) y = 0;
+      var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th);
+      var lineNo = lineAtHeight(doc, heightPos);
+      if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc.size - 1).text.length};
+      var lineObj = getLine(lineNo), text = lineObj.text;
+      var tw = options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0;
+      if (x <= 0 && innerOff == 0) return {line: lineNo, ch: 0};
+      function getX(len) {
+        var sp = measureLine(lineObj, len);
+        if (tw) {
+          var off = Math.round(sp.top / th);
+          return Math.max(0, sp.left + (off - innerOff) * scroller.clientWidth);
+        }
+        return sp.left;
+      }
+      var from = 0, fromX = 0, to = text.length, toX;
+      // Guess a suitable upper bound for our search.
+      var estimated = Math.min(to, Math.ceil((x + innerOff * scroller.clientWidth * .9) / cw));
+      for (;;) {
+        var estX = getX(estimated);
+        if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
+        else {toX = estX; to = estimated; break;}
+      }
+      if (x > toX) return {line: lineNo, ch: to};
+      // Try to guess a suitable lower bound as well.
+      estimated = Math.floor(to * 0.8); estX = getX(estimated);
+      if (estX < x) {from = estimated; fromX = estX;}
+      // Do a binary search between these bounds.
+      for (;;) {
+        if (to - from <= 1) return {line: lineNo, ch: (toX - x > x - fromX) ? from : to};
+        var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
+        if (middleX > x) {to = middle; toX = middleX;}
+        else {from = middle; fromX = middleX;}
+      }
+    }
+    function pageCoords(pos) {
+      var local = localCoords(pos, true), off = eltOffset(lineSpace);
+      return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot};
+    }
+
+    var cachedHeight, cachedHeightFor, measureText;
+    function textHeight() {
+      if (measureText == null) {
+        measureText = "
";
+        for (var i = 0; i < 49; ++i) measureText += "x
";
+        measureText += "x
";
+      }
+      var offsetHeight = lineDiv.clientHeight;
+      if (offsetHeight == cachedHeightFor) return cachedHeight;
+      cachedHeightFor = offsetHeight;
+      measure.innerHTML = measureText;
+      cachedHeight = measure.firstChild.offsetHeight / 50 || 1;
+      measure.innerHTML = "";
+      return cachedHeight;
+    }
+    var cachedWidth, cachedWidthFor = 0;
+    function charWidth() {
+      if (scroller.clientWidth == cachedWidthFor) return cachedWidth;
+      cachedWidthFor = scroller.clientWidth;
+      return (cachedWidth = stringWidth("x"));
+    }
+    function paddingTop() {return lineSpace.offsetTop;}
+    function paddingLeft() {return lineSpace.offsetLeft;}
+
+    function posFromMouse(e, liberal) {
+      var offW = eltOffset(scroller, true), x, y;
+      // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+      try { x = e.clientX; y = e.clientY; } catch (e) { return null; }
+      // This is a mess of a heuristic to try and determine whether a
+      // scroll-bar was clicked or not, and to return null if one was
+      // (and !liberal).
+      if (!liberal && (x - offW.left > scroller.clientWidth || y - offW.top > scroller.clientHeight))
+        return null;
+      var offL = eltOffset(lineSpace, true);
+      return coordsChar(x - offL.left, y - offL.top);
+    }
+    function onContextMenu(e) {
+      var pos = posFromMouse(e), scrollPos = scrollbar.scrollTop;
+      if (!pos || opera) return; // Opera is difficult.
+      if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
+        operation(setCursor)(pos.line, pos.ch);
+
+      var oldCSS = input.style.cssText;
+      inputDiv.style.position = "absolute";
+      input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
+        "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; " +
+        "border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+      leaveInputAlone = true;
+      var val = input.value = getSelection();
+      focusInput();
+      selectInput(input);
+      function rehide() {
+        var newVal = splitLines(input.value).join("\n");
+        if (newVal != val && !options.readOnly) operation(replaceSelection)(newVal, "end");
+        inputDiv.style.position = "relative";
+        input.style.cssText = oldCSS;
+        if (ie_lt9) scrollbar.scrollTop = scrollPos;
+        leaveInputAlone = false;
+        resetInput(true);
+        slowPoll();
+      }
+
+      if (gecko) {
+        e_stop(e);
+        var mouseup = connect(window, "mouseup", function() {
+          mouseup();
+          setTimeout(rehide, 20);
+        }, true);
+      } else {
+        setTimeout(rehide, 50);
+      }
+    }
+
+    // Cursor-blinking
+    function restartBlink() {
+      clearInterval(blinker);
+      var on = true;
+      cursor.style.visibility = "";
+      blinker = setInterval(function() {
+        cursor.style.visibility = (on = !on) ? "" : "hidden";
+      }, 650);
+    }
+
+    var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
+    function matchBrackets(autoclear) {
+      var head = sel.inverted ? sel.from : sel.to, line = getLine(head.line), pos = head.ch - 1;
+      var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
+      if (!match) return;
+      var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles;
+      for (var off = pos + 1, i = 0, e = st.length; i < e; i+=2)
+        if ((off -= st[i].length) <= 0) {var style = st[i+1]; break;}
+
+      var stack = [line.text.charAt(pos)], re = /[(){}[\]]/;
+      function scan(line, from, to) {
+        if (!line.text) return;
+        var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur;
+        for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) {
+          var text = st[i];
+          if (st[i+1] != style) {pos += d * text.length; continue;}
+          for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) {
+            if (pos >= from && pos < to && re.test(cur = text.charAt(j))) {
+              var match = matching[cur];
+              if (match.charAt(1) == ">" == forward) stack.push(cur);
+              else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false};
+              else if (!stack.length) return {pos: pos, match: true};
+            }
+          }
+        }
+      }
+      for (var i = head.line, e = forward ? Math.min(i + 100, doc.size) : Math.max(-1, i - 100); i != e; i+=d) {
+        var line = getLine(i), first = i == head.line;
+        var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length);
+        if (found) break;
+      }
+      if (!found) found = {pos: null, match: false};
+      var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
+      var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style),
+          two = found.pos != null && markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style);
+      var clear = operation(function(){one.clear(); two && two.clear();});
+      if (autoclear) setTimeout(clear, 800);
+      else bracketHighlighted = clear;
+    }
+
+    // Finds the line to start with when starting a parse. Tries to
+    // find a line with a stateAfter, so that it can start with a
+    // valid state. If that fails, it returns the line with the
+    // smallest indentation, which tends to need the least context to
+    // parse correctly.
+    function findStartLine(n) {
+      var minindent, minline;
+      for (var search = n, lim = n - 40; search > lim; --search) {
+        if (search == 0) return 0;
+        var line = getLine(search-1);
+        if (line.stateAfter) return search;
+        var indented = line.indentation(options.tabSize);
+        if (minline == null || minindent > indented) {
+          minline = search - 1;
+          minindent = indented;
+        }
+      }
+      return minline;
+    }
+    function getStateBefore(n) {
+      var start = findStartLine(n), state = start && getLine(start-1).stateAfter;
+      if (!state) state = startState(mode);
+      else state = copyState(mode, state);
+      doc.iter(start, n, function(line) {
+        line.highlight(mode, state, options.tabSize);
+        line.stateAfter = copyState(mode, state);
+      });
+      if (start < n) changes.push({from: start, to: n});
+      if (n < doc.size && !getLine(n).stateAfter) work.push(n);
+      return state;
+    }
+    function highlightLines(start, end) {
+      var state = getStateBefore(start);
+      doc.iter(start, end, function(line) {
+        line.highlight(mode, state, options.tabSize);
+        line.stateAfter = copyState(mode, state);
+      });
+    }
+    function highlightWorker() {
+      var end = +new Date + options.workTime;
+      var foundWork = work.length;
+      while (work.length) {
+        if (!getLine(showingFrom).stateAfter) var task = showingFrom;
+        else var task = work.pop();
+        if (task >= doc.size) continue;
+        var start = findStartLine(task), state = start && getLine(start-1).stateAfter;
+        if (state) state = copyState(mode, state);
+        else state = startState(mode);
+
+        var unchanged = 0, compare = mode.compareStates, realChange = false,
+            i = start, bail = false;
+        doc.iter(i, doc.size, function(line) {
+          var hadState = line.stateAfter;
+          if (+new Date > end) {
+            work.push(i);
+            startWorker(options.workDelay);
+            if (realChange) changes.push({from: task, to: i + 1});
+            return (bail = true);
+          }
+          var changed = line.highlight(mode, state, options.tabSize);
+          if (changed) realChange = true;
+          line.stateAfter = copyState(mode, state);
+          var done = null;
+          if (compare) {
+            var same = hadState && compare(hadState, state);
+            if (same != Pass) done = !!same;
+          }
+          if (done == null) {
+            if (changed !== false || !hadState) unchanged = 0;
+            else if (++unchanged > 3 && (!mode.indent || mode.indent(hadState, "") == mode.indent(state, "")))
+              done = true;
+          }
+          if (done) return true;
+          ++i;
+        });
+        if (bail) return;
+        if (realChange) changes.push({from: task, to: i + 1});
+      }
+      if (foundWork && options.onHighlightComplete)
+        options.onHighlightComplete(instance);
+    }
+    function startWorker(time) {
+      if (!work.length) return;
+      highlight.set(time, operation(highlightWorker));
+    }
+
+    // Operations are used to wrap changes in such a way that each
+    // change won't have to update the cursor and display (which would
+    // be awkward, slow, and error-prone), but instead updates are
+    // batched and then all combined and executed at once.
+    function startOperation() {
+      updateInput = userSelChange = textChanged = null;
+      changes = []; selectionChanged = false; callbacks = [];
+    }
+    function endOperation() {
+      if (updateMaxLine) computeMaxLength();
+      if (maxLineChanged && !options.lineWrapping) {
+        widthForcer.style.left = stringWidth(maxLine) + "px";
+        maxLineChanged = false;
+      }
+      var newScrollPos, updated;
+      if (selectionChanged) {
+        var coords = calculateCursorCoords();
+        newScrollPos = calculateScrollPos(coords.x, coords.y, coords.x, coords.yBot);
+      }
+      if (changes.length) updated = updateDisplay(changes, true, (newScrollPos ? newScrollPos.scrollTop : null));
+      else {
+        if (selectionChanged) updateSelection();
+        if (gutterDirty) updateGutter();
+      }
+      if (newScrollPos) scrollCursorIntoView();
+      if (selectionChanged) {scrollEditorIntoView(); restartBlink();}
+
+      if (focused && !leaveInputAlone &&
+          (updateInput === true || (updateInput !== false && selectionChanged)))
+        resetInput(userSelChange);
+
+      if (selectionChanged && options.matchBrackets)
+        setTimeout(operation(function() {
+          if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
+          if (posEq(sel.from, sel.to)) matchBrackets(false);
+        }), 20);
+      var sc = selectionChanged, cbs = callbacks; // these can be reset by callbacks
+      if (textChanged && options.onChange && instance)
+        options.onChange(instance, textChanged);
+      if (sc && options.onCursorActivity)
+        options.onCursorActivity(instance);
+      for (var i = 0; i < cbs.length; ++i) cbs[i](instance);
+      if (updated && options.onUpdate) options.onUpdate(instance);
+    }
+    var nestedOperation = 0;
+    function operation(f) {
+      return function() {
+        if (!nestedOperation++) startOperation();
+        try {var result = f.apply(this, arguments);}
+        finally {if (!--nestedOperation) endOperation();}
+        return result;
+      };
+    }
+
+    function compoundChange(f) {
+      history.startCompound();
+      try { return f(); } finally { history.endCompound(); }
+    }
+
+    for (var ext in extensions)
+      if (extensions.propertyIsEnumerable(ext) &&
+          !instance.propertyIsEnumerable(ext))
+        instance[ext] = extensions[ext];
+    return instance;
+  } // (end of function CodeMirror)
+
+  // The default configuration options.
+  CodeMirror.defaults = {
+    value: "",
+    mode: null,
+    theme: "default",
+    indentUnit: 2,
+    indentWithTabs: false,
+    smartIndent: true,
+    tabSize: 4,
+    keyMap: "default",
+    extraKeys: null,
+    electricChars: true,
+    autoClearEmptyLines: false,
+    onKeyEvent: null,
+    onDragEvent: null,
+    lineWrapping: false,
+    lineNumbers: false,
+    gutter: false,
+    fixedGutter: false,
+    firstLineNumber: 1,
+    readOnly: false,
+    dragDrop: true,
+    onChange: null,
+    onCursorActivity: null,
+    onGutterClick: null,
+    onHighlightComplete: null,
+    onUpdate: null,
+    onFocus: null, onBlur: null, onScroll: null,
+    matchBrackets: false,
+    workTime: 100,
+    workDelay: 200,
+    pollInterval: 100,
+    undoDepth: 40,
+    tabindex: null,
+    autofocus: null
+  };
+
+  var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
+  var mac = ios || /Mac/.test(navigator.platform);
+  var win = /Win/.test(navigator.platform);
+
+  // Known modes, by name and by MIME
+  var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
+  CodeMirror.defineMode = function(name, mode) {
+    if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
+    if (arguments.length > 2) {
+      mode.dependencies = [];
+      for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
+    }
+    modes[name] = mode;
+  };
+  CodeMirror.defineMIME = function(mime, spec) {
+    mimeModes[mime] = spec;
+  };
+  CodeMirror.resolveMode = function(spec) {
+    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
+      spec = mimeModes[spec];
+    else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec))
+      return CodeMirror.resolveMode("application/xml");
+    if (typeof spec == "string") return {name: spec};
+    else return spec || {name: "null"};
+  };
+  CodeMirror.getMode = function(options, spec) {
+    var spec = CodeMirror.resolveMode(spec);
+    var mfactory = modes[spec.name];
+    if (!mfactory) return CodeMirror.getMode(options, "text/plain");
+    return mfactory(options, spec);
+  };
+  CodeMirror.listModes = function() {
+    var list = [];
+    for (var m in modes)
+      if (modes.propertyIsEnumerable(m)) list.push(m);
+    return list;
+  };
+  CodeMirror.listMIMEs = function() {
+    var list = [];
+    for (var m in mimeModes)
+      if (mimeModes.propertyIsEnumerable(m)) list.push({mime: m, mode: mimeModes[m]});
+    return list;
+  };
+
+  var extensions = CodeMirror.extensions = {};
+  CodeMirror.defineExtension = function(name, func) {
+    extensions[name] = func;
+  };
+
+  var commands = CodeMirror.commands = {
+    selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},
+    killLine: function(cm) {
+      var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
+      if (!sel && cm.getLine(from.line).length == from.ch) cm.replaceRange("", from, {line: from.line + 1, ch: 0});
+      else cm.replaceRange("", from, sel ? to : {line: from.line});
+    },
+    deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});},
+    undo: function(cm) {cm.undo();},
+    redo: function(cm) {cm.redo();},
+    goDocStart: function(cm) {cm.setCursor(0, 0, true);},
+    goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},
+    goLineStart: function(cm) {cm.setCursor(cm.getCursor().line, 0, true);},
+    goLineStartSmart: function(cm) {
+      var cur = cm.getCursor();
+      var text = cm.getLine(cur.line), firstNonWS = Math.max(0, text.search(/\S/));
+      cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);
+    },
+    goLineEnd: function(cm) {cm.setSelection({line: cm.getCursor().line}, null, true);},
+    goLineUp: function(cm) {cm.moveV(-1, "line");},
+    goLineDown: function(cm) {cm.moveV(1, "line");},
+    goPageUp: function(cm) {cm.moveV(-1, "page");},
+    goPageDown: function(cm) {cm.moveV(1, "page");},
+    goCharLeft: function(cm) {cm.moveH(-1, "char");},
+    goCharRight: function(cm) {cm.moveH(1, "char");},
+    goColumnLeft: function(cm) {cm.moveH(-1, "column");},
+    goColumnRight: function(cm) {cm.moveH(1, "column");},
+    goWordLeft: function(cm) {cm.moveH(-1, "word");},
+    goWordRight: function(cm) {cm.moveH(1, "word");},
+    delCharLeft: function(cm) {cm.deleteH(-1, "char");},
+    delCharRight: function(cm) {cm.deleteH(1, "char");},
+    delWordLeft: function(cm) {cm.deleteH(-1, "word");},
+    delWordRight: function(cm) {cm.deleteH(1, "word");},
+    indentAuto: function(cm) {cm.indentSelection("smart");},
+    indentMore: function(cm) {cm.indentSelection("add");},
+    indentLess: function(cm) {cm.indentSelection("subtract");},
+    insertTab: function(cm) {cm.replaceSelection("\t", "end");},
+    defaultTab: function(cm) {
+      if (cm.somethingSelected()) cm.indentSelection("add");
+      else cm.replaceSelection("\t", "end");
+    },
+    transposeChars: function(cm) {
+      var cur = cm.getCursor(), line = cm.getLine(cur.line);
+      if (cur.ch > 0 && cur.ch < line.length - 1)
+        cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
+                        {line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});
+    },
+    newlineAndIndent: function(cm) {
+      cm.replaceSelection("\n", "end");
+      cm.indentLine(cm.getCursor().line);
+    },
+    toggleOverwrite: function(cm) {cm.toggleOverwrite();}
+  };
+
+  var keyMap = CodeMirror.keyMap = {};
+  keyMap.basic = {
+    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+    "Delete": "delCharRight", "Backspace": "delCharLeft", "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
+  };
+  // Note that the save and find-related commands aren't defined by
+  // default. Unknown commands are simply ignored.
+  keyMap.pcDefault = {
+    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+    "Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
+    "Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+    "Ctrl-Backspace": "delWordLeft", "Ctrl-Delete": "delWordRight", "Ctrl-S": "save", "Ctrl-F": "find",
+    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+    fallthrough: "basic"
+  };
+  keyMap.macDefault = {
+    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+    "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft",
+    "Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordLeft",
+    "Ctrl-Alt-Backspace": "delWordRight", "Alt-Delete": "delWordRight", "Cmd-S": "save", "Cmd-F": "find",
+    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+    "Cmd-[": "indentLess", "Cmd-]": "indentMore",
+    fallthrough: ["basic", "emacsy"]
+  };
+  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+  keyMap.emacsy = {
+    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+    "Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharRight", "Ctrl-H": "delCharLeft",
+    "Alt-D": "delWordRight", "Alt-Backspace": "delWordLeft", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
+  };
+
+  function getKeyMap(val) {
+    if (typeof val == "string") return keyMap[val];
+    else return val;
+  }
+  function lookupKey(name, extraMap, map, handle, stop) {
+    function lookup(map) {
+      map = getKeyMap(map);
+      var found = map[name];
+      if (found != null && handle(found)) return true;
+      if (map.nofallthrough) {
+        if (stop) stop();
+        return true;
+      }
+      var fallthrough = map.fallthrough;
+      if (fallthrough == null) return false;
+      if (Object.prototype.toString.call(fallthrough) != "[object Array]")
+        return lookup(fallthrough);
+      for (var i = 0, e = fallthrough.length; i < e; ++i) {
+        if (lookup(fallthrough[i])) return true;
+      }
+      return false;
+    }
+    if (extraMap && lookup(extraMap)) return true;
+    return lookup(map);
+  }
+  function isModifierKey(event) {
+    var name = keyNames[e_prop(event, "keyCode")];
+    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
+  }
+
+  CodeMirror.fromTextArea = function(textarea, options) {
+    if (!options) options = {};
+    options.value = textarea.value;
+    if (!options.tabindex && textarea.tabindex)
+      options.tabindex = textarea.tabindex;
+    if (options.autofocus == null && textarea.getAttribute("autofocus") != null)
+      options.autofocus = true;
+
+    function save() {textarea.value = instance.getValue();}
+    if (textarea.form) {
+      // Deplorable hack to make the submit method do the right thing.
+      var rmSubmit = connect(textarea.form, "submit", save, true);
+      if (typeof textarea.form.submit == "function") {
+        var realSubmit = textarea.form.submit;
+        function wrappedSubmit() {
+          save();
+          textarea.form.submit = realSubmit;
+          textarea.form.submit();
+          textarea.form.submit = wrappedSubmit;
+        }
+        textarea.form.submit = wrappedSubmit;
+      }
+    }
+
+    textarea.style.display = "none";
+    var instance = CodeMirror(function(node) {
+      textarea.parentNode.insertBefore(node, textarea.nextSibling);
+    }, options);
+    instance.save = save;
+    instance.getTextArea = function() { return textarea; };
+    instance.toTextArea = function() {
+      save();
+      textarea.parentNode.removeChild(instance.getWrapperElement());
+      textarea.style.display = "";
+      if (textarea.form) {
+        rmSubmit();
+        if (typeof textarea.form.submit == "function")
+          textarea.form.submit = realSubmit;
+      }
+    };
+    return instance;
+  };
+
+  // Utility functions for working with state. Exported because modes
+  // sometimes need to do this.
+  function copyState(mode, state) {
+    if (state === true) return state;
+    if (mode.copyState) return mode.copyState(state);
+    var nstate = {};
+    for (var n in state) {
+      var val = state[n];
+      if (val instanceof Array) val = val.concat([]);
+      nstate[n] = val;
+    }
+    return nstate;
+  }
+  CodeMirror.copyState = copyState;
+  function startState(mode, a1, a2) {
+    return mode.startState ? mode.startState(a1, a2) : true;
+  }
+  CodeMirror.startState = startState;
+
+  // The character stream used by a mode's parser.
+  function StringStream(string, tabSize) {
+    this.pos = this.start = 0;
+    this.string = string;
+    this.tabSize = tabSize || 8;
+  }
+  StringStream.prototype = {
+    eol: function() {return this.pos >= this.string.length;},
+    sol: function() {return this.pos == 0;},
+    peek: function() {return this.string.charAt(this.pos);},
+    next: function() {
+      if (this.pos < this.string.length)
+        return this.string.charAt(this.pos++);
+    },
+    eat: function(match) {
+      var ch = this.string.charAt(this.pos);
+      if (typeof match == "string") var ok = ch == match;
+      else var ok = ch && (match.test ? match.test(ch) : match(ch));
+      if (ok) {++this.pos; return ch;}
+    },
+    eatWhile: function(match) {
+      var start = this.pos;
+      while (this.eat(match)){}
+      return this.pos > start;
+    },
+    eatSpace: function() {
+      var start = this.pos;
+      while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
+      return this.pos > start;
+    },
+    skipToEnd: function() {this.pos = this.string.length;},
+    skipTo: function(ch) {
+      var found = this.string.indexOf(ch, this.pos);
+      if (found > -1) {this.pos = found; return true;}
+    },
+    backUp: function(n) {this.pos -= n;},
+    column: function() {return countColumn(this.string, this.start, this.tabSize);},
+    indentation: function() {return countColumn(this.string, null, this.tabSize);},
+    match: function(pattern, consume, caseInsensitive) {
+      if (typeof pattern == "string") {
+        function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
+        if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
+          if (consume !== false) this.pos += pattern.length;
+          return true;
+        }
+      } else {
+        var match = this.string.slice(this.pos).match(pattern);
+        if (match && consume !== false) this.pos += match[0].length;
+        return match;
+      }
+    },
+    current: function(){return this.string.slice(this.start, this.pos);}
+  };
+  CodeMirror.StringStream = StringStream;
+
+  function MarkedText(from, to, className, marker) {
+    this.from = from; this.to = to; this.style = className; this.marker = marker;
+  }
+  MarkedText.prototype = {
+    attach: function(line) { this.marker.set.push(line); },
+    detach: function(line) {
+      var ix = indexOf(this.marker.set, line);
+      if (ix > -1) this.marker.set.splice(ix, 1);
+    },
+    split: function(pos, lenBefore) {
+      if (this.to <= pos && this.to != null) return null;
+      var from = this.from < pos || this.from == null ? null : this.from - pos + lenBefore;
+      var to = this.to == null ? null : this.to - pos + lenBefore;
+      return new MarkedText(from, to, this.style, this.marker);
+    },
+    dup: function() { return new MarkedText(null, null, this.style, this.marker); },
+    clipTo: function(fromOpen, from, toOpen, to, diff) {
+      if (fromOpen && to > this.from && (to < this.to || this.to == null))
+        this.from = null;
+      else if (this.from != null && this.from >= from)
+        this.from = Math.max(to, this.from) + diff;
+      if (toOpen && (from < this.to || this.to == null) && (from > this.from || this.from == null))
+        this.to = null;
+      else if (this.to != null && this.to > from)
+        this.to = to < this.to ? this.to + diff : from;
+    },
+    isDead: function() { return this.from != null && this.to != null && this.from >= this.to; },
+    sameSet: function(x) { return this.marker == x.marker; }
+  };
+
+  function Bookmark(pos) {
+    this.from = pos; this.to = pos; this.line = null;
+  }
+  Bookmark.prototype = {
+    attach: function(line) { this.line = line; },
+    detach: function(line) { if (this.line == line) this.line = null; },
+    split: function(pos, lenBefore) {
+      if (pos < this.from) {
+        this.from = this.to = (this.from - pos) + lenBefore;
+        return this;
+      }
+    },
+    isDead: function() { return this.from > this.to; },
+    clipTo: function(fromOpen, from, toOpen, to, diff) {
+      if ((fromOpen || from < this.from) && (toOpen || to > this.to)) {
+        this.from = 0; this.to = -1;
+      } else if (this.from > from) {
+        this.from = this.to = Math.max(to, this.from) + diff;
+      }
+    },
+    sameSet: function(x) { return false; },
+    find: function() {
+      if (!this.line || !this.line.parent) return null;
+      return {line: lineNo(this.line), ch: this.from};
+    },
+    clear: function() {
+      if (this.line) {
+        var found = indexOf(this.line.marked, this);
+        if (found != -1) this.line.marked.splice(found, 1);
+        this.line = null;
+      }
+    }
+  };
+
+  // Line objects. These hold state related to a line, including
+  // highlighting info (the styles array).
+  function Line(text, styles) {
+    this.styles = styles || [text, null];
+    this.text = text;
+    this.height = 1;
+    this.marked = this.gutterMarker = this.className = this.bgClassName = this.handlers = null;
+    this.stateAfter = this.parent = this.hidden = null;
+  }
+  Line.inheritMarks = function(text, orig) {
+    var ln = new Line(text), mk = orig && orig.marked;
+    if (mk) {
+      for (var i = 0; i < mk.length; ++i) {
+        if (mk[i].to == null && mk[i].style) {
+          var newmk = ln.marked || (ln.marked = []), mark = mk[i];
+          var nmark = mark.dup(); newmk.push(nmark); nmark.attach(ln);
+        }
+      }
+    }
+    return ln;
+  }
+  Line.prototype = {
+    // Replace a piece of a line, keeping the styles around it intact.
+    replace: function(from, to_, text) {
+      var st = [], mk = this.marked, to = to_ == null ? this.text.length : to_;
+      copyStyles(0, from, this.styles, st);
+      if (text) st.push(text, null);
+      copyStyles(to, this.text.length, this.styles, st);
+      this.styles = st;
+      this.text = this.text.slice(0, from) + text + this.text.slice(to);
+      this.stateAfter = null;
+      if (mk) {
+        var diff = text.length - (to - from);
+        for (var i = 0; i < mk.length; ++i) {
+          var mark = mk[i];
+          mark.clipTo(from == null, from || 0, to_ == null, to, diff);
+          if (mark.isDead()) {mark.detach(this); mk.splice(i--, 1);}
+        }
+      }
+    },
+    // Split a part off a line, keeping styles and markers intact.
+    split: function(pos, textBefore) {
+      var st = [textBefore, null], mk = this.marked;
+      copyStyles(pos, this.text.length, this.styles, st);
+      var taken = new Line(textBefore + this.text.slice(pos), st);
+      if (mk) {
+        for (var i = 0; i < mk.length; ++i) {
+          var mark = mk[i];
+          var newmark = mark.split(pos, textBefore.length);
+          if (newmark) {
+            if (!taken.marked) taken.marked = [];
+            taken.marked.push(newmark); newmark.attach(taken);
+            if (newmark == mark) mk.splice(i--, 1);
+          }
+        }
+      }
+      return taken;
+    },
+    append: function(line) {
+      var mylen = this.text.length, mk = line.marked, mymk = this.marked;
+      this.text += line.text;
+      copyStyles(0, line.text.length, line.styles, this.styles);
+      if (mymk) {
+        for (var i = 0; i < mymk.length; ++i)
+          if (mymk[i].to == null) mymk[i].to = mylen;
+      }
+      if (mk && mk.length) {
+        if (!mymk) this.marked = mymk = [];
+        outer: for (var i = 0; i < mk.length; ++i) {
+          var mark = mk[i];
+          if (!mark.from) {
+            for (var j = 0; j < mymk.length; ++j) {
+              var mymark = mymk[j];
+              if (mymark.to == mylen && mymark.sameSet(mark)) {
+                mymark.to = mark.to == null ? null : mark.to + mylen;
+                if (mymark.isDead()) {
+                  mymark.detach(this);
+                  mk.splice(i--, 1);
+                }
+                continue outer;
+              }
+            }
+          }
+          mymk.push(mark);
+          mark.attach(this);
+          mark.from += mylen;
+          if (mark.to != null) mark.to += mylen;
+        }
+      }
+    },
+    fixMarkEnds: function(other) {
+      var mk = this.marked, omk = other.marked;
+      if (!mk) return;
+      for (var i = 0; i < mk.length; ++i) {
+        var mark = mk[i], close = mark.to == null;
+        if (close && omk) {
+          for (var j = 0; j < omk.length; ++j)
+            if (omk[j].sameSet(mark)) {close = false; break;}
+        }
+        if (close) mark.to = this.text.length;
+      }
+    },
+    fixMarkStarts: function() {
+      var mk = this.marked;
+      if (!mk) return;
+      for (var i = 0; i < mk.length; ++i)
+        if (mk[i].from == null) mk[i].from = 0;
+    },
+    addMark: function(mark) {
+      mark.attach(this);
+      if (this.marked == null) this.marked = [];
+      this.marked.push(mark);
+      this.marked.sort(function(a, b){return (a.from || 0) - (b.from || 0);});
+    },
+    // Run the given mode's parser over a line, update the styles
+    // array, which contains alternating fragments of text and CSS
+    // classes.
+    highlight: function(mode, state, tabSize) {
+      var stream = new StringStream(this.text, tabSize), st = this.styles, pos = 0;
+      var changed = false, curWord = st[0], prevWord;
+      if (this.text == "" && mode.blankLine) mode.blankLine(state);
+      while (!stream.eol()) {
+        var style = mode.token(stream, state);
+        var substr = this.text.slice(stream.start, stream.pos);
+        stream.start = stream.pos;
+        if (pos && st[pos-1] == style)
+          st[pos-2] += substr;
+        else if (substr) {
+          if (!changed && (st[pos+1] != style || (pos && st[pos-2] != prevWord))) changed = true;
+          st[pos++] = substr; st[pos++] = style;
+          prevWord = curWord; curWord = st[pos];
+        }
+        // Give up when line is ridiculously long
+        if (stream.pos > 5000) {
+          st[pos++] = this.text.slice(stream.pos); st[pos++] = null;
+          break;
+        }
+      }
+      if (st.length != pos) {st.length = pos; changed = true;}
+      if (pos && st[pos-2] != prevWord) changed = true;
+      // Short lines with simple highlights return null, and are
+      // counted as changed by the driver because they are likely to
+      // highlight the same way in various contexts.
+      return changed || (st.length < 5 && this.text.length < 10 ? null : false);
+    },
+    // Fetch the parser token for a given character. Useful for hacks
+    // that want to inspect the mode state (say, for completion).
+    getTokenAt: function(mode, state, ch) {
+      var txt = this.text, stream = new StringStream(txt);
+      while (stream.pos < ch && !stream.eol()) {
+        stream.start = stream.pos;
+        var style = mode.token(stream, state);
+      }
+      return {start: stream.start,
+              end: stream.pos,
+              string: stream.current(),
+              className: style || null,
+              state: state};
+    },
+    indentation: function(tabSize) {return countColumn(this.text, null, tabSize);},
+    // Produces an HTML fragment for the line, taking selection,
+    // marking, and highlighting into account.
+    getHTML: function(makeTab, wrapAt, wrapId, wrapWBR) {
+      var html = [], first = true, col = 0;
+      function span_(text, style) {
+        if (!text) return;
+        // Work around a bug where, in some compat modes, IE ignores leading spaces
+        if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
+        first = false;
+        if (text.indexOf("\t") == -1) {
+          col += text.length;
+          var escaped = htmlEscape(text);
+        } else {
+          var escaped = "";
+          for (var pos = 0;;) {
+            var idx = text.indexOf("\t", pos);
+            if (idx == -1) {
+              escaped += htmlEscape(text.slice(pos));
+              col += text.length - pos;
+              break;
+            } else {
+              col += idx - pos;
+              var tab = makeTab(col);
+              escaped += htmlEscape(text.slice(pos, idx)) + tab.html;
+              col += tab.width;
+              pos = idx + 1;
+            }
+          }
+        }
+        if (style) html.push('', escaped, "");
+        else html.push(escaped);
+      }
+      var span = span_;
+      if (wrapAt != null) {
+        var outPos = 0, open = "";
+        span = function(text, style) {
+          var l = text.length;
+          if (wrapAt >= outPos && wrapAt < outPos + l) {
+            if (wrapAt > outPos) {
+              span_(text.slice(0, wrapAt - outPos), style);
+              // See comment at the definition of spanAffectsWrapping
+              if (wrapWBR) html.push("");
+            }
+            html.push(open);
+            var cut = wrapAt - outPos;
+            span_(opera ? text.slice(cut, cut + 1) : text.slice(cut), style);
+            html.push("");
+            if (opera) span_(text.slice(cut + 1), style);
+            wrapAt--;
+            outPos += l;
+          } else {
+            outPos += l;
+            span_(text, style);
+            // Output empty wrapper when at end of line
+            if (outPos == wrapAt && outPos == len) html.push(open + " ");
+            // Stop outputting HTML when gone sufficiently far beyond measure
+            else if (outPos > wrapAt + 10 && /\s/.test(text)) span = function(){};
+          }
+        }
+      }
+
+      var st = this.styles, allText = this.text, marked = this.marked;
+      var len = allText.length;
+      function styleToClass(style) {
+        if (!style) return null;
+        return "cm-" + style.replace(/ +/g, " cm-");
+      }
+
+      if (!allText && wrapAt == null) {
+        span(" ");
+      } else if (!marked || !marked.length) {
+        for (var i = 0, ch = 0; ch < len; i+=2) {
+          var str = st[i], style = st[i+1], l = str.length;
+          if (ch + l > len) str = str.slice(0, len - ch);
+          ch += l;
+          span(str, styleToClass(style));
+        }
+      } else {
+        var pos = 0, i = 0, text = "", style, sg = 0;
+        var nextChange = marked[0].from || 0, marks = [], markpos = 0;
+        function advanceMarks() {
+          var m;
+          while (markpos < marked.length &&
+                 ((m = marked[markpos]).from == pos || m.from == null)) {
+            if (m.style != null) marks.push(m);
+            ++markpos;
+          }
+          nextChange = markpos < marked.length ? marked[markpos].from : Infinity;
+          for (var i = 0; i < marks.length; ++i) {
+            var to = marks[i].to || Infinity;
+            if (to == pos) marks.splice(i--, 1);
+            else nextChange = Math.min(to, nextChange);
+          }
+        }
+        var m = 0;
+        while (pos < len) {
+          if (nextChange == pos) advanceMarks();
+          var upto = Math.min(len, nextChange);
+          while (true) {
+            if (text) {
+              var end = pos + text.length;
+              var appliedStyle = style;
+              for (var j = 0; j < marks.length; ++j)
+                appliedStyle = (appliedStyle ? appliedStyle + " " : "") + marks[j].style;
+              span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
+              if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
+              pos = end;
+            }
+            text = st[i++]; style = styleToClass(st[i++]);
+          }
+        }
+      }
+      return html.join("");
+    },
+    cleanUp: function() {
+      this.parent = null;
+      if (this.marked)
+        for (var i = 0, e = this.marked.length; i < e; ++i) this.marked[i].detach(this);
+    }
+  };
+  // Utility used by replace and split above
+  function copyStyles(from, to, source, dest) {
+    for (var i = 0, pos = 0, state = 0; pos < to; i+=2) {
+      var part = source[i], end = pos + part.length;
+      if (state == 0) {
+        if (end > from) dest.push(part.slice(from - pos, Math.min(part.length, to - pos)), source[i+1]);
+        if (end >= from) state = 1;
+      } else if (state == 1) {
+        if (end > to) dest.push(part.slice(0, to - pos), source[i+1]);
+        else dest.push(part, source[i+1]);
+      }
+      pos = end;
+    }
+  }
+
+  // Data structure that holds the sequence of lines.
+  function LeafChunk(lines) {
+    this.lines = lines;
+    this.parent = null;
+    for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
+      lines[i].parent = this;
+      height += lines[i].height;
+    }
+    this.height = height;
+  }
+  LeafChunk.prototype = {
+    chunkSize: function() { return this.lines.length; },
+    remove: function(at, n, callbacks) {
+      for (var i = at, e = at + n; i < e; ++i) {
+        var line = this.lines[i];
+        this.height -= line.height;
+        line.cleanUp();
+        if (line.handlers)
+          for (var j = 0; j < line.handlers.length; ++j) callbacks.push(line.handlers[j]);
+      }
+      this.lines.splice(at, n);
+    },
+    collapse: function(lines) {
+      lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
+    },
+    insertHeight: function(at, lines, height) {
+      this.height += height;
+      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+      for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
+    },
+    iterN: function(at, n, op) {
+      for (var e = at + n; at < e; ++at)
+        if (op(this.lines[at])) return true;
+    }
+  };
+  function BranchChunk(children) {
+    this.children = children;
+    var size = 0, height = 0;
+    for (var i = 0, e = children.length; i < e; ++i) {
+      var ch = children[i];
+      size += ch.chunkSize(); height += ch.height;
+      ch.parent = this;
+    }
+    this.size = size;
+    this.height = height;
+    this.parent = null;
+  }
+  BranchChunk.prototype = {
+    chunkSize: function() { return this.size; },
+    remove: function(at, n, callbacks) {
+      this.size -= n;
+      for (var i = 0; i < this.children.length; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at < sz) {
+          var rm = Math.min(n, sz - at), oldHeight = child.height;
+          child.remove(at, rm, callbacks);
+          this.height -= oldHeight - child.height;
+          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
+          if ((n -= rm) == 0) break;
+          at = 0;
+        } else at -= sz;
+      }
+      if (this.size - n < 25) {
+        var lines = [];
+        this.collapse(lines);
+        this.children = [new LeafChunk(lines)];
+        this.children[0].parent = this;
+      }
+    },
+    collapse: function(lines) {
+      for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
+    },
+    insert: function(at, lines) {
+      var height = 0;
+      for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
+      this.insertHeight(at, lines, height);
+    },
+    insertHeight: function(at, lines, height) {
+      this.size += lines.length;
+      this.height += height;
+      for (var i = 0, e = this.children.length; i < e; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at <= sz) {
+          child.insertHeight(at, lines, height);
+          if (child.lines && child.lines.length > 50) {
+            while (child.lines.length > 50) {
+              var spilled = child.lines.splice(child.lines.length - 25, 25);
+              var newleaf = new LeafChunk(spilled);
+              child.height -= newleaf.height;
+              this.children.splice(i + 1, 0, newleaf);
+              newleaf.parent = this;
+            }
+            this.maybeSpill();
+          }
+          break;
+        }
+        at -= sz;
+      }
+    },
+    maybeSpill: function() {
+      if (this.children.length <= 10) return;
+      var me = this;
+      do {
+        var spilled = me.children.splice(me.children.length - 5, 5);
+        var sibling = new BranchChunk(spilled);
+        if (!me.parent) { // Become the parent node
+          var copy = new BranchChunk(me.children);
+          copy.parent = me;
+          me.children = [copy, sibling];
+          me = copy;
+        } else {
+          me.size -= sibling.size;
+          me.height -= sibling.height;
+          var myIndex = indexOf(me.parent.children, me);
+          me.parent.children.splice(myIndex + 1, 0, sibling);
+        }
+        sibling.parent = me.parent;
+      } while (me.children.length > 10);
+      me.parent.maybeSpill();
+    },
+    iter: function(from, to, op) { this.iterN(from, to - from, op); },
+    iterN: function(at, n, op) {
+      for (var i = 0, e = this.children.length; i < e; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at < sz) {
+          var used = Math.min(n, sz - at);
+          if (child.iterN(at, used, op)) return true;
+          if ((n -= used) == 0) break;
+          at = 0;
+        } else at -= sz;
+      }
+    }
+  };
+
+  function getLineAt(chunk, n) {
+    while (!chunk.lines) {
+      for (var i = 0;; ++i) {
+        var child = chunk.children[i], sz = child.chunkSize();
+        if (n < sz) { chunk = child; break; }
+        n -= sz;
+      }
+    }
+    return chunk.lines[n];
+  }
+  function lineNo(line) {
+    if (line.parent == null) return null;
+    var cur = line.parent, no = indexOf(cur.lines, line);
+    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+      for (var i = 0, e = chunk.children.length; ; ++i) {
+        if (chunk.children[i] == cur) break;
+        no += chunk.children[i].chunkSize();
+      }
+    }
+    return no;
+  }
+  function lineAtHeight(chunk, h) {
+    var n = 0;
+    outer: do {
+      for (var i = 0, e = chunk.children.length; i < e; ++i) {
+        var child = chunk.children[i], ch = child.height;
+        if (h < ch) { chunk = child; continue outer; }
+        h -= ch;
+        n += child.chunkSize();
+      }
+      return n;
+    } while (!chunk.lines);
+    for (var i = 0, e = chunk.lines.length; i < e; ++i) {
+      var line = chunk.lines[i], lh = line.height;
+      if (h < lh) break;
+      h -= lh;
+    }
+    return n + i;
+  }
+  function heightAtLine(chunk, n) {
+    var h = 0;
+    outer: do {
+      for (var i = 0, e = chunk.children.length; i < e; ++i) {
+        var child = chunk.children[i], sz = child.chunkSize();
+        if (n < sz) { chunk = child; continue outer; }
+        n -= sz;
+        h += child.height;
+      }
+      return h;
+    } while (!chunk.lines);
+    for (var i = 0; i < n; ++i) h += chunk.lines[i].height;
+    return h;
+  }
+
+  // The history object 'chunks' changes that are made close together
+  // and at almost the same time into bigger undoable units.
+  function History() {
+    this.time = 0;
+    this.done = []; this.undone = [];
+    this.compound = 0;
+    this.closed = false;
+  }
+  History.prototype = {
+    addChange: function(start, added, old) {
+      this.undone.length = 0;
+      var time = +new Date, cur = this.done[this.done.length - 1], last = cur && cur[cur.length - 1];
+      var dtime = time - this.time;
+
+      if (this.compound && cur && !this.closed) {
+        cur.push({start: start, added: added, old: old});
+      } else if (dtime > 400 || !last || this.closed ||
+                 last.start > start + old.length || last.start + last.added < start) {
+        this.done.push([{start: start, added: added, old: old}]);
+        this.closed = false;
+      } else {
+        var startBefore = Math.max(0, last.start - start),
+            endAfter = Math.max(0, (start + old.length) - (last.start + last.added));
+        for (var i = startBefore; i > 0; --i) last.old.unshift(old[i - 1]);
+        for (var i = endAfter; i > 0; --i) last.old.push(old[old.length - i]);
+        if (startBefore) last.start = start;
+        last.added += added - (old.length - startBefore - endAfter);
+      }
+      this.time = time;
+    },
+    startCompound: function() {
+      if (!this.compound++) this.closed = true;
+    },
+    endCompound: function() {
+      if (!--this.compound) this.closed = true;
+    }
+  };
+
+  function stopMethod() {e_stop(this);}
+  // Ensure an event has a stop method.
+  function addStop(event) {
+    if (!event.stop) event.stop = stopMethod;
+    return event;
+  }
+
+  function e_preventDefault(e) {
+    if (e.preventDefault) e.preventDefault();
+    else e.returnValue = false;
+  }
+  function e_stopPropagation(e) {
+    if (e.stopPropagation) e.stopPropagation();
+    else e.cancelBubble = true;
+  }
+  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
+  CodeMirror.e_stop = e_stop;
+  CodeMirror.e_preventDefault = e_preventDefault;
+  CodeMirror.e_stopPropagation = e_stopPropagation;
+
+  function e_target(e) {return e.target || e.srcElement;}
+  function e_button(e) {
+    if (e.which) return e.which;
+    else if (e.button & 1) return 1;
+    else if (e.button & 2) return 3;
+    else if (e.button & 4) return 2;
+  }
+
+  // Allow 3rd-party code to override event properties by adding an override
+  // object to an event object.
+  function e_prop(e, prop) {
+    var overridden = e.override && e.override.hasOwnProperty(prop);
+    return overridden ? e.override[prop] : e[prop];
+  }
+
+  // Event handler registration. If disconnect is true, it'll return a
+  // function that unregisters the handler.
+  function connect(node, type, handler, disconnect) {
+    if (typeof node.addEventListener == "function") {
+      node.addEventListener(type, handler, false);
+      if (disconnect) return function() {node.removeEventListener(type, handler, false);};
+    } else {
+      var wrapHandler = function(event) {handler(event || window.event);};
+      node.attachEvent("on" + type, wrapHandler);
+      if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
+    }
+  }
+  CodeMirror.connect = connect;
+
+  function Delayed() {this.id = null;}
+  Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
+
+  var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
+
+  var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
+  var ie = /MSIE \d/.test(navigator.userAgent);
+  var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
+  var ie_lt9 = /MSIE [1-8]\b/.test(navigator.userAgent);
+  var quirksMode = ie && document.documentMode == 5;
+  var webkit = /WebKit\//.test(navigator.userAgent);
+  var chrome = /Chrome\//.test(navigator.userAgent);
+  var opera = /Opera\//.test(navigator.userAgent);
+  var safari = /Apple Computer/.test(navigator.vendor);
+  var khtml = /KHTML\//.test(navigator.userAgent);
+  var mac_geLion = /Mac OS X 10\D([7-9]|\d\d)\D/.test(navigator.userAgent);
+
+  // Detect drag-and-drop
+  var dragAndDrop = function() {
+    // There is *some* kind of drag-and-drop support in IE6-8, but I
+    // couldn't get it to work yet.
+    if (ie_lt9) return false;
+    var div = document.createElement('div');
+    return "draggable" in div || "dragDrop" in div;
+  }();
+
+  // Feature-detect whether newlines in textareas are converted to \r\n
+  var lineSep = function () {
+    var te = document.createElement("textarea");
+    te.value = "foo\nbar";
+    if (te.value.indexOf("\r") > -1) return "\r\n";
+    return "\n";
+  }();
+
+  // For a reason I have yet to figure out, some browsers disallow
+  // word wrapping between certain characters *only* if a new inline
+  // element is started between them. This makes it hard to reliably
+  // measure the position of things, since that requires inserting an
+  // extra span. This terribly fragile set of regexps matches the
+  // character combinations that suffer from this phenomenon on the
+  // various browsers.
+  var spanAffectsWrapping = /^$/; // Won't match any two-character string
+  if (gecko) spanAffectsWrapping = /$'/;
+  else if (safari) spanAffectsWrapping = /\-[^ \-?]|\?[^ !'\"\),.\-\/:;\?\]\}]/;
+  else if (chrome) spanAffectsWrapping = /\-[^ \-\.?]|\?[^ \-\.?\]\}:;!'\"\),\/]|[\.!\"#&%\)*+,:;=>\]|\}~][\(\{\[<]|\$'/;
+
+  // Counts the column offset in a string, taking tabs into account.
+  // Used mostly to find indentation.
+  function countColumn(string, end, tabSize) {
+    if (end == null) {
+      end = string.search(/[^\s\u00a0]/);
+      if (end == -1) end = string.length;
+    }
+    for (var i = 0, n = 0; i < end; ++i) {
+      if (string.charAt(i) == "\t") n += tabSize - (n % tabSize);
+      else ++n;
+    }
+    return n;
+  }
+
+  function computedStyle(elt) {
+    if (elt.currentStyle) return elt.currentStyle;
+    return window.getComputedStyle(elt, null);
+  }
+
+  // Find the position of an element by following the offsetParent chain.
+  // If screen==true, it returns screen (rather than page) coordinates.
+  function eltOffset(node, screen) {
+    var bod = node.ownerDocument.body;
+    var x = 0, y = 0, skipBody = false;
+    for (var n = node; n; n = n.offsetParent) {
+      var ol = n.offsetLeft, ot = n.offsetTop;
+      // Firefox reports weird inverted offsets when the body has a border.
+      if (n == bod) { x += Math.abs(ol); y += Math.abs(ot); }
+      else { x += ol, y += ot; }
+      if (screen && computedStyle(n).position == "fixed")
+        skipBody = true;
+    }
+    var e = screen && !skipBody ? null : bod;
+    for (var n = node.parentNode; n != e; n = n.parentNode)
+      if (n.scrollLeft != null) { x -= n.scrollLeft; y -= n.scrollTop;}
+    return {left: x, top: y};
+  }
+  // Use the faster and saner getBoundingClientRect method when possible.
+  if (document.documentElement.getBoundingClientRect != null) eltOffset = function(node, screen) {
+    // Take the parts of bounding client rect that we are interested in so we are able to edit if need be,
+    // since the returned value cannot be changed externally (they are kept in sync as the element moves within the page)
+    try { var box = node.getBoundingClientRect(); box = { top: box.top, left: box.left }; }
+    catch(e) { box = {top: 0, left: 0}; }
+    if (!screen) {
+      // Get the toplevel scroll, working around browser differences.
+      if (window.pageYOffset == null) {
+        var t = document.documentElement || document.body.parentNode;
+        if (t.scrollTop == null) t = document.body;
+        box.top += t.scrollTop; box.left += t.scrollLeft;
+      } else {
+        box.top += window.pageYOffset; box.left += window.pageXOffset;
+      }
+    }
+    return box;
+  };
+
+  // Get a node's text content.
+  function eltText(node) {
+    return node.textContent || node.innerText || node.nodeValue || "";
+  }
+  function selectInput(node) {
+    if (ios) { // Mobile Safari apparently has a bug where select() is broken.
+      node.selectionStart = 0;
+      node.selectionEnd = node.value.length;
+    } else node.select();
+  }
+
+  // Operations on {line, ch} objects.
+  function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
+  function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}
+  function copyPos(x) {return {line: x.line, ch: x.ch};}
+
+  var escapeElement = document.createElement("pre");
+  function htmlEscape(str) {
+    escapeElement.textContent = str;
+    return escapeElement.innerHTML;
+  }
+  // Recent (late 2011) Opera betas insert bogus newlines at the start
+  // of the textContent, so we strip those.
+  if (htmlEscape("a") == "\na") {
+    htmlEscape = function(str) {
+      escapeElement.textContent = str;
+      return escapeElement.innerHTML.slice(1);
+    };
+  // Some IEs don't preserve tabs through innerHTML
+  } else if (htmlEscape("\t") != "\t") {
+    htmlEscape = function(str) {
+      escapeElement.innerHTML = "";
+      escapeElement.appendChild(document.createTextNode(str));
+      return escapeElement.innerHTML;
+    };
+  }
+  CodeMirror.htmlEscape = htmlEscape;
+
+  // Used to position the cursor after an undo/redo by finding the
+  // last edited character.
+  function editEnd(from, to) {
+    if (!to) return 0;
+    if (!from) return to.length;
+    for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)
+      if (from.charAt(i) != to.charAt(j)) break;
+    return j + 1;
+  }
+
+  function indexOf(collection, elt) {
+    if (collection.indexOf) return collection.indexOf(elt);
+    for (var i = 0, e = collection.length; i < e; ++i)
+      if (collection[i] == elt) return i;
+    return -1;
+  }
+  function isWordChar(ch) {
+    return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();
+  }
+
+  // See if "".split is the broken IE version, if so, provide an
+  // alternative way to split lines.
+  var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
+    var pos = 0, nl, result = [];
+    while ((nl = string.indexOf("\n", pos)) > -1) {
+      result.push(string.slice(pos, string.charAt(nl-1) == "\r" ? nl - 1 : nl));
+      pos = nl + 1;
+    }
+    result.push(string.slice(pos));
+    return result;
+  } : function(string){return string.split(/\r?\n/);};
+  CodeMirror.splitLines = splitLines;
+
+  var hasSelection = window.getSelection ? function(te) {
+    try { return te.selectionStart != te.selectionEnd; }
+    catch(e) { return false; }
+  } : function(te) {
+    try {var range = te.ownerDocument.selection.createRange();}
+    catch(e) {}
+    if (!range || range.parentElement() != te) return false;
+    return range.compareEndPoints("StartToEnd", range) != 0;
+  };
+
+  CodeMirror.defineMode("null", function() {
+    return {token: function(stream) {stream.skipToEnd();}};
+  });
+  CodeMirror.defineMIME("text/plain", "null");
+
+  var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+                  19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+                  36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+                  46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete",
+                  186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+                  221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home",
+                  63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"};
+  CodeMirror.keyNames = keyNames;
+  (function() {
+    // Number keys
+    for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
+    // Alphabetic keys
+    for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
+    // Function keys
+    for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
+  })();
+
+  return CodeMirror;
+})();
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/closetag.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/closetag.js
new file mode 100644
index 0000000..20a43b9
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/closetag.js
@@ -0,0 +1,146 @@
+/**
+ * Tag-closer extension for CodeMirror.
+ *
+ * This extension adds a "closeTag" utility function that can be used with key bindings to 
+ * insert a matching end tag after the ">" character of a start tag has been typed.  It can
+ * also complete "
+ * Contributed under the same license terms as CodeMirror.
+ */
+(function() {
+	/** Option that allows tag closing behavior to be toggled.  Default is true. */
+	CodeMirror.defaults['closeTagEnabled'] = true;
+	
+	/** Array of tag names to add indentation after the start tag for.  Default is the list of block-level html tags. */
+	CodeMirror.defaults['closeTagIndent'] = ['applet', 'blockquote', 'body', 'button', 'div', 'dl', 'fieldset', 'form', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'html', 'iframe', 'layer', 'legend', 'object', 'ol', 'p', 'select', 'table', 'ul'];
+
+	/**
+	 * Call during key processing to close tags.  Handles the key event if the tag is closed, otherwise throws CodeMirror.Pass.
+	 * - cm: The editor instance.
+	 * - ch: The character being processed.
+	 * - indent: Optional.  Omit or pass true to use the default indentation tag list defined in the 'closeTagIndent' option.
+	 *   Pass false to disable indentation.  Pass an array to override the default list of tag names.
+	 */
+	CodeMirror.defineExtension("closeTag", function(cm, ch, indent) {
+		if (!cm.getOption('closeTagEnabled')) {
+			throw CodeMirror.Pass;
+		}
+		
+		var mode = cm.getOption('mode');
+		
+		if (mode == 'text/html') {
+		
+			/*
+			 * Relevant structure of token:
+			 *
+			 * htmlmixed
+			 * 		className
+			 * 		state
+			 * 			htmlState
+			 * 				type
+			 * 				context
+			 * 					tagName
+			 * 			mode
+			 * 
+			 * xml
+			 * 		className
+			 * 		state
+			 * 			tagName
+			 * 			type
+			 */
+		
+			var pos = cm.getCursor();
+			var tok = cm.getTokenAt(pos);
+			var state = tok.state;
+			
+			if (state.mode && state.mode != 'html') {
+				throw CodeMirror.Pass; // With htmlmixed, we only care about the html sub-mode.
+			}
+			
+			if (ch == '>') {
+				var type = state.htmlState ? state.htmlState.type : state.type; // htmlmixed : xml
+				
+				if (tok.className == 'tag' && type == 'closeTag') {
+					throw CodeMirror.Pass; // Don't process the '>' at the end of an end-tag.
+				}
+			
+				cm.replaceSelection('>'); // Mode state won't update until we finish the tag.
+				pos = {line: pos.line, ch: pos.ch + 1};
+				cm.setCursor(pos);
+		
+				tok = cm.getTokenAt(cm.getCursor());
+				state = tok.state;
+				type = state.htmlState ? state.htmlState.type : state.type; // htmlmixed : xml
+
+				if (tok.className == 'tag' && type != 'selfcloseTag') {
+					var tagName = state.htmlState ? state.htmlState.context.tagName : state.tagName; // htmlmixed : xml
+					if (tagName.length > 0) {
+						insertEndTag(cm, indent, pos, tagName);
+					}
+					return;
+				}
+				
+				// Undo the '>' insert and allow cm to handle the key instead.
+				cm.setSelection({line: pos.line, ch: pos.ch - 1}, pos);
+				cm.replaceSelection("");
+			
+			} else if (ch == '/') {
+				if (tok.className == 'tag' && tok.string == '<') {
+					var tagName = state.htmlState ? (state.htmlState.context ? state.htmlState.context.tagName : '') : state.context.tagName; // htmlmixed : xml # extra htmlmized check is for ' 0) {
+						completeEndTag(cm, pos, tagName);
+						return;
+					}
+				}
+			}
+		
+		}
+		
+		throw CodeMirror.Pass; // Bubble if not handled
+	});
+
+	function insertEndTag(cm, indent, pos, tagName) {
+		if (shouldIndent(cm, indent, tagName)) {
+			cm.replaceSelection('\n\n', 'end');
+			cm.indentLine(pos.line + 1);
+			cm.indentLine(pos.line + 2);
+			cm.setCursor({line: pos.line + 1, ch: cm.getLine(pos.line + 1).length});
+		} else {
+			cm.replaceSelection('');
+			cm.setCursor(pos);
+		}
+	}
+	
+	function shouldIndent(cm, indent, tagName) {
+		if (typeof indent == 'undefined' || indent == null || indent == true) {
+			indent = cm.getOption('closeTagIndent');
+		}
+		if (!indent) {
+			indent = [];
+		}
+		return indexOf(indent, tagName.toLowerCase()) != -1;
+	}
+	
+	// C&P from codemirror.js...would be nice if this were visible to utilities.
+	function indexOf(collection, elt) {
+		if (collection.indexOf) return collection.indexOf(elt);
+		for (var i = 0, e = collection.length; i < e; ++i)
+			if (collection[i] == elt) return i;
+		return -1;
+	}
+
+	function completeEndTag(cm, pos, tagName) {
+		cm.replaceSelection('/' + tagName + '>');
+		cm.setCursor({line: pos.line, ch: pos.ch + tagName.length + 2 });
+	}
+	
+})();
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.css b/codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.css
new file mode 100644
index 0000000..4cb467e
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.css
@@ -0,0 +1,23 @@
+.CodeMirror-dialog {
+  position: relative;
+}
+
+.CodeMirror-dialog > div {
+  position: absolute;
+  top: 0; left: 0; right: 0;
+  background: white;
+  border-bottom: 1px solid #eee;
+  z-index: 15;
+  padding: .1em .8em;
+  overflow: hidden;
+  color: #333;
+}
+
+.CodeMirror-dialog input {
+  border: none;
+  outline: none;
+  background: transparent;
+  width: 20em;
+  color: inherit;
+  font-family: monospace;
+}
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.js
new file mode 100644
index 0000000..8950bf0
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/dialog.js
@@ -0,0 +1,63 @@
+// Open simple dialogs on top of an editor. Relies on dialog.css.
+
+(function() {
+  function dialogDiv(cm, template) {
+    var wrap = cm.getWrapperElement();
+    var dialog = wrap.insertBefore(document.createElement("div"), wrap.firstChild);
+    dialog.className = "CodeMirror-dialog";
+    dialog.innerHTML = '
' + template + '
';
+    return dialog;
+  }
+
+  CodeMirror.defineExtension("openDialog", function(template, callback) {
+    var dialog = dialogDiv(this, template);
+    var closed = false, me = this;
+    function close() {
+      if (closed) return;
+      closed = true;
+      dialog.parentNode.removeChild(dialog);
+    }
+    var inp = dialog.getElementsByTagName("input")[0];
+    if (inp) {
+      CodeMirror.connect(inp, "keydown", function(e) {
+        if (e.keyCode == 13 || e.keyCode == 27) {
+          CodeMirror.e_stop(e);
+          close();
+          me.focus();
+          if (e.keyCode == 13) callback(inp.value);
+        }
+      });
+      inp.focus();
+      CodeMirror.connect(inp, "blur", close);
+    }
+    return close;
+  });
+
+  CodeMirror.defineExtension("openConfirm", function(template, callbacks) {
+    var dialog = dialogDiv(this, template);
+    var buttons = dialog.getElementsByTagName("button");
+    var closed = false, me = this, blurring = 1;
+    function close() {
+      if (closed) return;
+      closed = true;
+      dialog.parentNode.removeChild(dialog);
+      me.focus();
+    }
+    buttons[0].focus();
+    for (var i = 0; i < buttons.length; ++i) {
+      var b = buttons[i];
+      (function(callback) {
+        CodeMirror.connect(b, "click", function(e) {
+          CodeMirror.e_preventDefault(e);
+          close();
+          if (callback) callback(me);
+        });
+      })(callbacks[i]);
+      CodeMirror.connect(b, "blur", function() {
+        --blurring;
+        setTimeout(function() { if (blurring <= 0) close(); }, 200);
+      });
+      CodeMirror.connect(b, "focus", function() { ++blurring; });
+    }
+  });
+})();
\ No newline at end of file
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/foldcode.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/foldcode.js
new file mode 100644
index 0000000..02cfb50
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/foldcode.js
@@ -0,0 +1,196 @@
+// the tagRangeFinder function is
+//   Copyright (C) 2011 by Daniel Glazman 
+// released under the MIT license (../../LICENSE) like the rest of CodeMirror
+CodeMirror.tagRangeFinder = function(cm, line, hideEnd) {
+  var nameStartChar = "A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
+  var nameChar = nameStartChar + "\-\:\.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
+  var xmlNAMERegExp = new RegExp("^[" + nameStartChar + "][" + nameChar + "]*");
+
+  var lineText = cm.getLine(line);
+  var found = false;
+  var tag = null;
+  var pos = 0;
+  while (!found) {
+    pos = lineText.indexOf("<", pos);
+    if (-1 == pos) // no tag on line
+      return;
+    if (pos + 1 < lineText.length && lineText[pos + 1] == "/") { // closing tag
+      pos++;
+      continue;
+    }
+    // ok we weem to have a start tag
+    if (!lineText.substr(pos + 1).match(xmlNAMERegExp)) { // not a tag name...
+      pos++;
+      continue;
+    }
+    var gtPos = lineText.indexOf(">", pos + 1);
+    if (-1 == gtPos) { // end of start tag not in line
+      var l = line + 1;
+      var foundGt = false;
+      var lastLine = cm.lineCount();
+      while (l < lastLine && !foundGt) {
+        var lt = cm.getLine(l);
+        var gt = lt.indexOf(">");
+        if (-1 != gt) { // found a >
+          foundGt = true;
+          var slash = lt.lastIndexOf("/", gt);
+          if (-1 != slash && slash < gt) {
+            var str = lineText.substr(slash, gt - slash + 1);
+            if (!str.match( /\/\s*\>/ )) { // yep, that's the end of empty tag
+              if (hideEnd === true) l++;
+              return l;
+            }
+          }
+        }
+        l++;
+      }
+      found = true;
+    }
+    else {
+      var slashPos = lineText.lastIndexOf("/", gtPos);
+      if (-1 == slashPos) { // cannot be empty tag
+        found = true;
+        // don't continue
+      }
+      else { // empty tag?
+        // check if really empty tag
+        var str = lineText.substr(slashPos, gtPos - slashPos + 1);
+        if (!str.match( /\/\s*\>/ )) { // finally not empty
+          found = true;
+          // don't continue
+        }
+      }
+    }
+    if (found) {
+      var subLine = lineText.substr(pos + 1);
+      tag = subLine.match(xmlNAMERegExp);
+      if (tag) {
+        // we have an element name, wooohooo !
+        tag = tag[0];
+        // do we have the close tag on same line ???
+        if (-1 != lineText.indexOf("", pos)) // yep
+        {
+          found = false;
+        }
+        // we don't, so we have a candidate...
+      }
+      else
+        found = false;
+    }
+    if (!found)
+      pos++;
+  }
+
+  if (found) {
+    var startTag = "(\\<\\/" + tag + "\\>)|(\\<" + tag + "\\>)|(\\<" + tag + "\\s)|(\\<" + tag + "$)";
+    var startTagRegExp = new RegExp(startTag, "g");
+    var endTag = "";
+    var depth = 1;
+    var l = line + 1;
+    var lastLine = cm.lineCount();
+    while (l < lastLine) {
+      lineText = cm.getLine(l);
+      var match = lineText.match(startTagRegExp);
+      if (match) {
+        for (var i = 0; i < match.length; i++) {
+          if (match[i] == endTag)
+            depth--;
+          else
+            depth++;
+          if (!depth) {
+            if (hideEnd === true) l++;
+            return l;
+          }
+        }
+      }
+      l++;
+    }
+    return;
+  }
+};
+
+CodeMirror.braceRangeFinder = function(cm, line, hideEnd) {
+  var lineText = cm.getLine(line), at = lineText.length, startChar, tokenType;
+  for (;;) {
+    var found = lineText.lastIndexOf("{", at);
+    if (found < 0) break;
+    tokenType = cm.getTokenAt({line: line, ch: found}).className;
+    if (!/^(comment|string)/.test(tokenType)) { startChar = found; break; }
+    at = found - 1;
+  }
+  if (startChar == null || lineText.lastIndexOf("}") > startChar) return;
+  var count = 1, lastLine = cm.lineCount(), end;
+  outer: for (var i = line + 1; i < lastLine; ++i) {
+    var text = cm.getLine(i), pos = 0;
+    for (;;) {
+      var nextOpen = text.indexOf("{", pos), nextClose = text.indexOf("}", pos);
+      if (nextOpen < 0) nextOpen = text.length;
+      if (nextClose < 0) nextClose = text.length;
+      pos = Math.min(nextOpen, nextClose);
+      if (pos == text.length) break;
+      if (cm.getTokenAt({line: i, ch: pos + 1}).className == tokenType) {
+        if (pos == nextOpen) ++count;
+        else if (!--count) { end = i; break outer; }
+      }
+      ++pos;
+    }
+  }
+  if (end == null || end == line + 1) return;
+  if (hideEnd === true) end++;
+  return end;
+};
+
+CodeMirror.indentRangeFinder = function(cm, line) {
+  var tabSize = cm.getOption("tabSize");
+  var myIndent = cm.getLineHandle(line).indentation(tabSize), last;
+  for (var i = line + 1, end = cm.lineCount(); i < end; ++i) {
+    var handle = cm.getLineHandle(i);
+    if (!/^\s*$/.test(handle.text)) {
+      if (handle.indentation(tabSize) <= myIndent) break;
+      last = i;
+    }
+  }
+  if (!last) return null;
+  return last + 1;
+};
+
+CodeMirror.newFoldFunction = function(rangeFinder, markText, hideEnd) {
+  var folded = [];
+  if (markText == null) markText = '
▼
%N%';
+
+  function isFolded(cm, n) {
+    for (var i = 0; i < folded.length; ++i) {
+      var start = cm.lineInfo(folded[i].start);
+      if (!start) folded.splice(i--, 1);
+      else if (start.line == n) return {pos: i, region: folded[i]};
+    }
+  }
+
+  function expand(cm, region) {
+    cm.clearMarker(region.start);
+    for (var i = 0; i < region.hidden.length; ++i)
+      cm.showLine(region.hidden[i]);
+  }
+
+  return function(cm, line) {
+    cm.operation(function() {
+      var known = isFolded(cm, line);
+      if (known) {
+        folded.splice(known.pos, 1);
+        expand(cm, known.region);
+      } else {
+        var end = rangeFinder(cm, line, hideEnd);
+        if (end == null) return;
+        var hidden = [];
+        for (var i = line + 1; i < end; ++i) {
+          var handle = cm.hideLine(i);
+          if (handle) hidden.push(handle);
+        }
+        var first = cm.setMarker(line, markText);
+        var region = {start: first, hidden: hidden};
+        cm.onDeleteLine(first, function() { expand(cm, region); });
+        folded.push(region);
+      }
+    });
+  };
+};
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/formatting.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/formatting.js
new file mode 100644
index 0000000..3a1a987
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/formatting.js
@@ -0,0 +1,297 @@
+// ============== Formatting extensions ============================
+// A common storage for all mode-specific formatting features
+if (!CodeMirror.modeExtensions) CodeMirror.modeExtensions = {};
+
+// Returns the extension of the editor's current mode
+CodeMirror.defineExtension("getModeExt", function () {
+  var mname = CodeMirror.resolveMode(this.getOption("mode")).name;
+  var ext = CodeMirror.modeExtensions[mname];
+  if (!ext) throw new Error("No extensions found for mode " + mname);
+  return ext;
+});
+
+// If the current mode is 'htmlmixed', returns the extension of a mode located at
+// the specified position (can be htmlmixed, css or javascript). Otherwise, simply
+// returns the extension of the editor's current mode.
+CodeMirror.defineExtension("getModeExtAtPos", function (pos) {
+  var token = this.getTokenAt(pos);
+  if (token && token.state && token.state.mode)
+    return CodeMirror.modeExtensions[token.state.mode == "html" ? "htmlmixed" : token.state.mode];
+  else
+    return this.getModeExt();
+});
+
+// Comment/uncomment the specified range
+CodeMirror.defineExtension("commentRange", function (isComment, from, to) {
+  var curMode = this.getModeExtAtPos(this.getCursor());
+  if (isComment) { // Comment range
+    var commentedText = this.getRange(from, to);
+    this.replaceRange(curMode.commentStart + this.getRange(from, to) + curMode.commentEnd
+      , from, to);
+    if (from.line == to.line && from.ch == to.ch) { // An empty comment inserted - put cursor inside
+      this.setCursor(from.line, from.ch + curMode.commentStart.length);
+    }
+  }
+  else { // Uncomment range
+    var selText = this.getRange(from, to);
+    var startIndex = selText.indexOf(curMode.commentStart);
+    var endIndex = selText.lastIndexOf(curMode.commentEnd);
+    if (startIndex > -1 && endIndex > -1 && endIndex > startIndex) {
+      // Take string till comment start
+      selText = selText.substr(0, startIndex)
+      // From comment start till comment end
+        + selText.substring(startIndex + curMode.commentStart.length, endIndex)
+      // From comment end till string end
+        + selText.substr(endIndex + curMode.commentEnd.length);
+    }
+    this.replaceRange(selText, from, to);
+  }
+});
+
+// Applies automatic mode-aware indentation to the specified range
+CodeMirror.defineExtension("autoIndentRange", function (from, to) {
+  var cmInstance = this;
+  this.operation(function () {
+    for (var i = from.line; i <= to.line; i++) {
+      cmInstance.indentLine(i, "smart");
+    }
+  });
+});
+
+// Applies automatic formatting to the specified range
+CodeMirror.defineExtension("autoFormatRange", function (from, to) {
+  var absStart = this.indexFromPos(from);
+  var absEnd = this.indexFromPos(to);
+  // Insert additional line breaks where necessary according to the
+  // mode's syntax
+  var res = this.getModeExt().autoFormatLineBreaks(this.getValue(), absStart, absEnd);
+  var cmInstance = this;
+
+  // Replace and auto-indent the range
+  this.operation(function () {
+    cmInstance.replaceRange(res, from, to);
+    var startLine = cmInstance.posFromIndex(absStart).line;
+    var endLine = cmInstance.posFromIndex(absStart + res.length).line;
+    for (var i = startLine; i <= endLine; i++) {
+      cmInstance.indentLine(i, "smart");
+    }
+  });
+});
+
+// Define extensions for a few modes
+
+CodeMirror.modeExtensions["css"] = {
+  commentStart: "/*",
+  commentEnd: "*/",
+  wordWrapChars: [";", "\\{", "\\}"],
+  autoFormatLineBreaks: function (text, startPos, endPos) {
+    text = text.substring(startPos, endPos);
+    return text.replace(new RegExp("(;|\\{|\\})([^\r\n])", "g"), "$1\n$2");
+  }
+};
+
+CodeMirror.modeExtensions["javascript"] = {
+  commentStart: "/*",
+  commentEnd: "*/",
+  wordWrapChars: [";", "\\{", "\\}"],
+
+  getNonBreakableBlocks: function (text) {
+    var nonBreakableRegexes = [
+        new RegExp("for\\s*?\\(([\\s\\S]*?)\\)"),
+        new RegExp("'([\\s\\S]*?)('|$)"),
+        new RegExp("\"([\\s\\S]*?)(\"|$)"),
+        new RegExp("//.*([\r\n]|$)")
+      ];
+    var nonBreakableBlocks = new Array();
+    for (var i = 0; i < nonBreakableRegexes.length; i++) {
+      var curPos = 0;
+      while (curPos < text.length) {
+        var m = text.substr(curPos).match(nonBreakableRegexes[i]);
+        if (m != null) {
+          nonBreakableBlocks.push({
+            start: curPos + m.index,
+            end: curPos + m.index + m[0].length
+          });
+          curPos += m.index + Math.max(1, m[0].length);
+        }
+        else { // No more matches
+          break;
+        }
+      }
+    }
+    nonBreakableBlocks.sort(function (a, b) {
+      return a.start - b.start;
+    });
+
+    return nonBreakableBlocks;
+  },
+
+  autoFormatLineBreaks: function (text, startPos, endPos) {
+    text = text.substring(startPos, endPos);
+    var curPos = 0;
+    var reLinesSplitter = new RegExp("(;|\\{|\\})([^\r\n])", "g");
+    var nonBreakableBlocks = this.getNonBreakableBlocks(text);
+    if (nonBreakableBlocks != null) {
+      var res = "";
+      for (var i = 0; i < nonBreakableBlocks.length; i++) {
+        if (nonBreakableBlocks[i].start > curPos) { // Break lines till the block
+          res += text.substring(curPos, nonBreakableBlocks[i].start).replace(reLinesSplitter, "$1\n$2");
+          curPos = nonBreakableBlocks[i].start;
+        }
+        if (nonBreakableBlocks[i].start <= curPos
+          && nonBreakableBlocks[i].end >= curPos) { // Skip non-breakable block
+          res += text.substring(curPos, nonBreakableBlocks[i].end);
+          curPos = nonBreakableBlocks[i].end;
+        }
+      }
+      if (curPos < text.length - 1) {
+        res += text.substr(curPos).replace(reLinesSplitter, "$1\n$2");
+      }
+      return res;
+    }
+    else {
+      return text.replace(reLinesSplitter, "$1\n$2");
+    }
+  }
+};
+
+CodeMirror.modeExtensions["xml"] = {
+  commentStart: "",
+  wordWrapChars: [">"],
+
+  autoFormatLineBreaks: function (text, startPos, endPos) {
+    text = text.substring(startPos, endPos);
+    var lines = text.split("\n");
+    var reProcessedPortion = new RegExp("(^\\s*?<|^[^<]*?)(.+)(>\\s*?$|[^>]*?$)");
+    var reOpenBrackets = new RegExp("<", "g");
+    var reCloseBrackets = new RegExp("(>)([^\r\n])", "g");
+    for (var i = 0; i < lines.length; i++) {
+      var mToProcess = lines[i].match(reProcessedPortion);
+      if (mToProcess != null && mToProcess.length > 3) { // The line starts with whitespaces and ends with whitespaces
+        lines[i] = mToProcess[1]
+            + mToProcess[2].replace(reOpenBrackets, "\n$&").replace(reCloseBrackets, "$1\n$2")
+            + mToProcess[3];
+        continue;
+      }
+    }
+
+    return lines.join("\n");
+  }
+};
+
+CodeMirror.modeExtensions["htmlmixed"] = {
+  commentStart: "",
+  wordWrapChars: [">", ";", "\\{", "\\}"],
+
+  getModeInfos: function (text, absPos) {
+    var modeInfos = new Array();
+    modeInfos[0] =
+      {
+        pos: 0,
+        modeExt: CodeMirror.modeExtensions["xml"],
+        modeName: "xml"
+      };
+
+    var modeMatchers = new Array();
+    modeMatchers[0] =
+      {
+        regex: new RegExp("]*>([\\s\\S]*?)(]*>|$)", "i"),
+        modeExt: CodeMirror.modeExtensions["css"],
+        modeName: "css"
+      };
+    modeMatchers[1] =
+      {
+        regex: new RegExp("]*>([\\s\\S]*?)(]*>|$)", "i"),
+        modeExt: CodeMirror.modeExtensions["javascript"],
+        modeName: "javascript"
+      };
+
+    var lastCharPos = (typeof (absPos) !== "undefined" ? absPos : text.length - 1);
+    // Detect modes for the entire text
+    for (var i = 0; i < modeMatchers.length; i++) {
+      var curPos = 0;
+      while (curPos <= lastCharPos) {
+        var m = text.substr(curPos).match(modeMatchers[i].regex);
+        if (m != null) {
+          if (m.length > 1 && m[1].length > 0) {
+            // Push block begin pos
+            var blockBegin = curPos + m.index + m[0].indexOf(m[1]);
+            modeInfos.push(
+              {
+                pos: blockBegin,
+                modeExt: modeMatchers[i].modeExt,
+                modeName: modeMatchers[i].modeName
+              });
+            // Push block end pos
+            modeInfos.push(
+              {
+                pos: blockBegin + m[1].length,
+                modeExt: modeInfos[0].modeExt,
+                modeName: modeInfos[0].modeName
+              });
+            curPos += m.index + m[0].length;
+            continue;
+          }
+          else {
+            curPos += m.index + Math.max(m[0].length, 1);
+          }
+        }
+        else { // No more matches
+          break;
+        }
+      }
+    }
+    // Sort mode infos
+    modeInfos.sort(function sortModeInfo(a, b) {
+      return a.pos - b.pos;
+    });
+
+    return modeInfos;
+  },
+
+  autoFormatLineBreaks: function (text, startPos, endPos) {
+    var modeInfos = this.getModeInfos(text);
+    var reBlockStartsWithNewline = new RegExp("^\\s*?\n");
+    var reBlockEndsWithNewline = new RegExp("\n\\s*?$");
+    var res = "";
+    // Use modes info to break lines correspondingly
+    if (modeInfos.length > 1) { // Deal with multi-mode text
+      for (var i = 1; i <= modeInfos.length; i++) {
+        var selStart = modeInfos[i - 1].pos;
+        var selEnd = (i < modeInfos.length ? modeInfos[i].pos : endPos);
+
+        if (selStart >= endPos) { // The block starts later than the needed fragment
+          break;
+        }
+        if (selStart < startPos) {
+          if (selEnd <= startPos) { // The block starts earlier than the needed fragment
+            continue;
+          }
+          selStart = startPos;
+        }
+        if (selEnd > endPos) {
+          selEnd = endPos;
+        }
+        var textPortion = text.substring(selStart, selEnd);
+        if (modeInfos[i - 1].modeName != "xml") { // Starting a CSS or JavaScript block
+          if (!reBlockStartsWithNewline.test(textPortion)
+              && selStart > 0) { // The block does not start with a line break
+            textPortion = "\n" + textPortion;
+          }
+          if (!reBlockEndsWithNewline.test(textPortion)
+              && selEnd < text.length - 1) { // The block does not end with a line break
+            textPortion += "\n";
+          }
+        }
+        res += modeInfos[i - 1].modeExt.autoFormatLineBreaks(textPortion);
+      }
+    }
+    else { // Single-mode text
+      res = modeInfos[0].modeExt.autoFormatLineBreaks(text.substring(startPos, endPos));
+    }
+
+    return res;
+  }
+};
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js
new file mode 100644
index 0000000..2117e5a
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/javascript-hint.js
@@ -0,0 +1,134 @@
+(function () {
+  function forEach(arr, f) {
+    for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
+  }
+  
+  function arrayContains(arr, item) {
+    if (!Array.prototype.indexOf) {
+      var i = arr.length;
+      while (i--) {
+        if (arr[i] === item) {
+          return true;
+        }
+      }
+      return false;
+    }
+    return arr.indexOf(item) != -1;
+  }
+
+  function scriptHint(editor, keywords, getToken) {
+    // Find the token at the cursor
+    var cur = editor.getCursor(), token = getToken(editor, cur), tprop = token;
+    // If it's not a 'word-style' token, ignore the token.
+		if (!/^[\w$_]*$/.test(token.string)) {
+      token = tprop = {start: cur.ch, end: cur.ch, string: "", state: token.state,
+                       className: token.string == "." ? "property" : null};
+    }
+    // If it is a property, find out what it is a property of.
+    while (tprop.className == "property") {
+      tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+      if (tprop.string != ".") return;
+      tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+      if (tprop.string == ')') {
+        var level = 1;
+        do {
+          tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+          switch (tprop.string) {
+          case ')': level++; break;
+          case '(': level--; break;
+          default: break;
+          }
+        } while (level > 0)
+        tprop = getToken(editor, {line: cur.line, ch: tprop.start});
+				if (tprop.className == 'variable')
+					tprop.className = 'function';
+				else return; // no clue
+      }
+      if (!context) var context = [];
+      context.push(tprop);
+    }
+    return {list: getCompletions(token, context, keywords),
+            from: {line: cur.line, ch: token.start},
+            to: {line: cur.line, ch: token.end}};
+  }
+
+  CodeMirror.javascriptHint = function(editor) {
+    return scriptHint(editor, javascriptKeywords,
+                      function (e, cur) {return e.getTokenAt(cur);});
+  }
+
+  function getCoffeeScriptToken(editor, cur) {
+  // This getToken, it is for coffeescript, imitates the behavior of
+  // getTokenAt method in javascript.js, that is, returning "property"
+  // type and treat "." as indepenent token.
+    var token = editor.getTokenAt(cur);
+    if (cur.ch == token.start + 1 && token.string.charAt(0) == '.') {
+      token.end = token.start;
+      token.string = '.';
+      token.className = "property";
+    }
+    else if (/^\.[\w$_]*$/.test(token.string)) {
+      token.className = "property";
+      token.start++;
+      token.string = token.string.replace(/\./, '');
+    }
+    return token;
+  }
+
+  CodeMirror.coffeescriptHint = function(editor) {
+    return scriptHint(editor, coffeescriptKeywords, getCoffeeScriptToken);
+  }
+
+  var stringProps = ("charAt charCodeAt indexOf lastIndexOf substring substr slice trim trimLeft trimRight " +
+                     "toUpperCase toLowerCase split concat match replace search").split(" ");
+  var arrayProps = ("length concat join splice push pop shift unshift slice reverse sort indexOf " +
+                    "lastIndexOf every some filter forEach map reduce reduceRight ").split(" ");
+  var funcProps = "prototype apply call bind".split(" ");
+  var javascriptKeywords = ("break case catch continue debugger default delete do else false finally for function " +
+                  "if in instanceof new null return switch throw true try typeof var void while with").split(" ");
+  var coffeescriptKeywords = ("and break catch class continue delete do else extends false finally for " +
+                  "if in instanceof isnt new no not null of off on or return switch then throw true try typeof until void while with yes").split(" ");
+
+  function getCompletions(token, context, keywords) {
+    var found = [], start = token.string;
+    function maybeAdd(str) {
+      if (str.indexOf(start) == 0 && !arrayContains(found, str)) found.push(str);
+    }
+    function gatherCompletions(obj) {
+      if (typeof obj == "string") forEach(stringProps, maybeAdd);
+      else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
+      else if (obj instanceof Function) forEach(funcProps, maybeAdd);
+      for (var name in obj) maybeAdd(name);
+    }
+
+    if (context) {
+      // If this is a property, see if it belongs to some object we can
+      // find in the current environment.
+      var obj = context.pop(), base;
+      if (obj.className == "variable")
+        base = window[obj.string];
+      else if (obj.className == "string")
+        base = "";
+      else if (obj.className == "atom")
+        base = 1;
+      else if (obj.className == "function") {
+        if (window.jQuery != null && (obj.string == '$' || obj.string == 'jQuery') &&
+            (typeof window.jQuery == 'function'))
+          base = window.jQuery();
+        else if (window._ != null && (obj.string == '_') && (typeof window._ == 'function'))
+          base = window._();
+      }
+      while (base != null && context.length)
+        base = base[context.pop().string];
+      if (base != null) gatherCompletions(base);
+    }
+    else {
+      // If not, just look in the window object and any local scope
+      // (reading into JS mode internals to get at the local variables)
+      for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
+      gatherCompletions(window);
+      forEach(keywords, maybeAdd);
+    }
+    return found;
+  }
+})();
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/loadmode.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/loadmode.js
new file mode 100644
index 0000000..48d5a7a
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/loadmode.js
@@ -0,0 +1,51 @@
+(function() {
+  if (!CodeMirror.modeURL) CodeMirror.modeURL = "../mode/%N/%N.js";
+
+  var loading = {};
+  function splitCallback(cont, n) {
+    var countDown = n;
+    return function() { if (--countDown == 0) cont(); }
+  }
+  function ensureDeps(mode, cont) {
+    var deps = CodeMirror.modes[mode].dependencies;
+    if (!deps) return cont();
+    var missing = [];
+    for (var i = 0; i < deps.length; ++i) {
+      if (!CodeMirror.modes.hasOwnProperty(deps[i]))
+        missing.push(deps[i]);
+    }
+    if (!missing.length) return cont();
+    var split = splitCallback(cont, missing.length);
+    for (var i = 0; i < missing.length; ++i)
+      CodeMirror.requireMode(missing[i], split);
+  }
+
+  CodeMirror.requireMode = function(mode, cont) {
+    if (typeof mode != "string") mode = mode.name;
+    if (CodeMirror.modes.hasOwnProperty(mode)) return ensureDeps(mode, cont);
+    if (loading.hasOwnProperty(mode)) return loading[mode].push(cont);
+
+    var script = document.createElement("script");
+    script.src = CodeMirror.modeURL.replace(/%N/g, mode);
+    var others = document.getElementsByTagName("script")[0];
+    others.parentNode.insertBefore(script, others);
+    var list = loading[mode] = [cont];
+    var count = 0, poll = setInterval(function() {
+      if (++count > 100) return clearInterval(poll);
+      if (CodeMirror.modes.hasOwnProperty(mode)) {
+        clearInterval(poll);
+        loading[mode] = null;
+        ensureDeps(mode, function() {
+          for (var i = 0; i < list.length; ++i) list[i]();
+        });
+      }
+    }, 200);
+  };
+
+  CodeMirror.autoLoadMode = function(instance, mode) {
+    if (!CodeMirror.modes.hasOwnProperty(mode))
+      CodeMirror.requireMode(mode, function() {
+        instance.setOption("mode", instance.getOption("mode"));
+      });
+  };
+}());
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/match-highlighter.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/match-highlighter.js
new file mode 100644
index 0000000..59098ff
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/match-highlighter.js
@@ -0,0 +1,44 @@
+// Define match-highlighter commands. Depends on searchcursor.js
+// Use by attaching the following function call to the onCursorActivity event:
+	//myCodeMirror.matchHighlight(minChars);
+// And including a special span.CodeMirror-matchhighlight css class (also optionally a separate one for .CodeMirror-focused -- see demo matchhighlighter.html)
+
+(function() {
+  var DEFAULT_MIN_CHARS = 2;
+  
+  function MatchHighlightState() {
+	this.marked = [];
+  }
+  function getMatchHighlightState(cm) {
+	return cm._matchHighlightState || (cm._matchHighlightState = new MatchHighlightState());
+  }
+  
+  function clearMarks(cm) {
+	var state = getMatchHighlightState(cm);
+	for (var i = 0; i < state.marked.length; ++i)
+		state.marked[i].clear();
+	state.marked = [];
+  }
+  
+  function markDocument(cm, className, minChars) {
+    clearMarks(cm);
+	minChars = (typeof minChars !== 'undefined' ? minChars : DEFAULT_MIN_CHARS);
+	if (cm.somethingSelected() && cm.getSelection().replace(/^\s+|\s+$/g, "").length >= minChars) {
+		var state = getMatchHighlightState(cm);
+		var query = cm.getSelection();
+		cm.operation(function() {
+			if (cm.lineCount() < 2000) { // This is too expensive on big documents.
+			  for (var cursor = cm.getSearchCursor(query); cursor.findNext();) {
+				//Only apply matchhighlight to the matches other than the one actually selected
+				if (!(cursor.from().line === cm.getCursor(true).line && cursor.from().ch === cm.getCursor(true).ch))
+					state.marked.push(cm.markText(cursor.from(), cursor.to(), className));
+			  }
+			}
+		  });
+	}
+  }
+
+  CodeMirror.defineExtension("matchHighlight", function(className, minChars) {
+    markDocument(this, className, minChars);
+  });
+})();
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/multiplex.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/multiplex.js
new file mode 100644
index 0000000..822ee62
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/multiplex.js
@@ -0,0 +1,72 @@
+CodeMirror.multiplexingMode = function(outer /*, others */) {
+  // Others should be {open, close, mode [, delimStyle]} objects
+  var others = Array.prototype.slice.call(arguments, 1);
+  var n_others = others.length;
+
+  return {
+    startState: function() {
+      return {
+        outer: CodeMirror.startState(outer),
+        innerActive: null,
+        inner: null
+      };
+    },
+
+    copyState: function(state) {
+      return {
+        outer: CodeMirror.copyState(outer, state.outer),
+        innerActive: state.innerActive,
+        inner: state.innerActive && CodeMirror.copyState(state.innerActive.mode, state.inner)
+      };
+    },
+
+    token: function(stream, state) {
+      if (!state.innerActive) {
+        for (var i = 0; i < n_others; ++i) {
+          var other = others[i];
+          if (stream.match(other.open)) {
+            state.innerActive = other;
+            state.inner = CodeMirror.startState(other.mode);
+            return other.delimStyle;
+          }
+        }
+        var outerToken = outer.token(stream, state.outer);
+        var cur = stream.current();
+        for (var i = 0; i < n_others; ++i) {
+          var other = others[i], found = cur.indexOf(other.open);
+          if (found > -1) {
+            stream.backUp(cur.length - found);
+            cur = cur.slice(0, found);
+          }
+        }
+        return outerToken;
+      } else {
+        var curInner = state.innerActive;
+        if (stream.match(curInner.close)) {
+          state.innerActive = state.inner = null;
+          return curInner.delimStyle;
+        }
+        var innerToken = curInner.mode.token(stream, state.inner);
+        var cur = stream.current(), found = cur.indexOf(curInner.close);
+        if (found > -1) stream.backUp(cur.length - found);
+        return innerToken;
+      }
+    },
+    
+    indent: function(state, textAfter) {
+      var mode = state.innerActive || outer;
+      if (!mode.indent) return CodeMirror.Pass;
+      return mode.indent(state.innerActive ? state.inner : state.outer, textAfter);
+    },
+
+    compareStates: function(a, b) {
+      if (a.innerActive != b.innerActive) return false;
+      var mode = a.innerActive || outer;
+      if (!mode.compareStates) return CodeMirror.Pass;
+      return mode.compareStates(a.innerActive ? a.inner : a.outer,
+                                b.innerActive ? b.inner : b.outer);
+    },
+
+    electricChars: outer.electricChars
+  };
+};
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/overlay.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/overlay.js
new file mode 100644
index 0000000..1d5df6c
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/overlay.js
@@ -0,0 +1,52 @@
+// Utility function that allows modes to be combined. The mode given
+// as the base argument takes care of most of the normal mode
+// functionality, but a second (typically simple) mode is used, which
+// can override the style of text. Both modes get to parse all of the
+// text, but when both assign a non-null style to a piece of code, the
+// overlay wins, unless the combine argument was true, in which case
+// the styles are combined.
+
+// overlayParser is the old, deprecated name
+CodeMirror.overlayMode = CodeMirror.overlayParser = function(base, overlay, combine) {
+  return {
+    startState: function() {
+      return {
+        base: CodeMirror.startState(base),
+        overlay: CodeMirror.startState(overlay),
+        basePos: 0, baseCur: null,
+        overlayPos: 0, overlayCur: null
+      };
+    },
+    copyState: function(state) {
+      return {
+        base: CodeMirror.copyState(base, state.base),
+        overlay: CodeMirror.copyState(overlay, state.overlay),
+        basePos: state.basePos, baseCur: null,
+        overlayPos: state.overlayPos, overlayCur: null
+      };
+    },
+
+    token: function(stream, state) {
+      if (stream.start == state.basePos) {
+        state.baseCur = base.token(stream, state.base);
+        state.basePos = stream.pos;
+      }
+      if (stream.start == state.overlayPos) {
+        stream.pos = stream.start;
+        state.overlayCur = overlay.token(stream, state.overlay);
+        state.overlayPos = stream.pos;
+      }
+      stream.pos = Math.min(state.basePos, state.overlayPos);
+      if (stream.eol()) state.basePos = state.overlayPos = 0;
+
+      if (state.overlayCur == null) return state.baseCur;
+      if (state.baseCur != null && combine) return state.baseCur + " " + state.overlayCur;
+      else return state.overlayCur;
+    },
+    
+    indent: base.indent && function(state, textAfter) {
+      return base.indent(state.base, textAfter);
+    },
+    electricChars: base.electricChars
+  };
+};
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/pig-hint.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/pig-hint.js
new file mode 100644
index 0000000..233b72b
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/pig-hint.js
@@ -0,0 +1,123 @@
+(function () {
+  function forEach(arr, f) {
+    for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
+  }
+  
+  function arrayContains(arr, item) {
+    if (!Array.prototype.indexOf) {
+      var i = arr.length;
+      while (i--) {
+        if (arr[i] === item) {
+          return true;
+        }
+      }
+      return false;
+    }
+    return arr.indexOf(item) != -1;
+  }
+
+  function scriptHint(editor, keywords, getToken) {
+    // Find the token at the cursor
+    var cur = editor.getCursor(), token = getToken(editor, cur), tprop = token;
+    // If it's not a 'word-style' token, ignore the token.
+
+    if (!/^[\w$_]*$/.test(token.string)) {
+        token = tprop = {start: cur.ch, end: cur.ch, string: "", state: token.state,
+                         className: token.string == ":" ? "pig-type" : null};
+    }
+      
+    if (!context) var context = [];
+    context.push(tprop);
+    
+    completionList = getCompletions(token, context); 
+    completionList = completionList.sort();
+    //prevent autocomplete for last word, instead show dropdown with one word
+    if(completionList.length == 1) {
+      completionList.push(" ");
+    }
+
+    return {list: completionList,
+              from: {line: cur.line, ch: token.start},
+              to: {line: cur.line, ch: token.end}};
+  }
+  
+  CodeMirror.pigHint = function(editor) {
+    return scriptHint(editor, pigKeywordsU, function (e, cur) {return e.getTokenAt(cur);});
+  }
+ 
+ function toTitleCase(str) {
+    return str.replace(/(?:^|\s)\w/g, function(match) {
+        return match.toUpperCase();
+    });
+ }
+  
+  var pigKeywords = "VOID IMPORT RETURNS DEFINE LOAD FILTER FOREACH ORDER CUBE DISTINCT COGROUP "
+  + "JOIN CROSS UNION SPLIT INTO IF OTHERWISE ALL AS BY USING INNER OUTER ONSCHEMA PARALLEL "
+  + "PARTITION GROUP AND OR NOT GENERATE FLATTEN ASC DESC IS STREAM THROUGH STORE MAPREDUCE "
+  + "SHIP CACHE INPUT OUTPUT STDERROR STDIN STDOUT LIMIT SAMPLE LEFT RIGHT FULL EQ GT LT GTE LTE " 
+  + "NEQ MATCHES TRUE FALSE";
+  var pigKeywordsU = pigKeywords.split(" ");
+  var pigKeywordsL = pigKeywords.toLowerCase().split(" ");
+  
+  var pigTypes = "BOOLEAN INT LONG FLOAT DOUBLE CHARARRAY BYTEARRAY BAG TUPLE MAP";
+  var pigTypesU = pigTypes.split(" ");
+  var pigTypesL = pigTypes.toLowerCase().split(" ");
+  
+  var pigBuiltins = "ABS ACOS ARITY ASIN ATAN AVG BAGSIZE BINSTORAGE BLOOM BUILDBLOOM CBRT CEIL " 
+  + "CONCAT COR COS COSH COUNT COUNT_STAR COV CONSTANTSIZE CUBEDIMENSIONS DIFF DISTINCT DOUBLEABS "
+  + "DOUBLEAVG DOUBLEBASE DOUBLEMAX DOUBLEMIN DOUBLEROUND DOUBLESUM EXP FLOOR FLOATABS FLOATAVG "
+  + "FLOATMAX FLOATMIN FLOATROUND FLOATSUM GENERICINVOKER INDEXOF INTABS INTAVG INTMAX INTMIN "
+  + "INTSUM INVOKEFORDOUBLE INVOKEFORFLOAT INVOKEFORINT INVOKEFORLONG INVOKEFORSTRING INVOKER "
+  + "ISEMPTY JSONLOADER JSONMETADATA JSONSTORAGE LAST_INDEX_OF LCFIRST LOG LOG10 LOWER LONGABS "
+  + "LONGAVG LONGMAX LONGMIN LONGSUM MAX MIN MAPSIZE MONITOREDUDF NONDETERMINISTIC OUTPUTSCHEMA  "
+  + "PIGSTORAGE PIGSTREAMING RANDOM REGEX_EXTRACT REGEX_EXTRACT_ALL REPLACE ROUND SIN SINH SIZE "
+  + "SQRT STRSPLIT SUBSTRING SUM STRINGCONCAT STRINGMAX STRINGMIN STRINGSIZE TAN TANH TOBAG "
+  + "TOKENIZE TOMAP TOP TOTUPLE TRIM TEXTLOADER TUPLESIZE UCFIRST UPPER UTF8STORAGECONVERTER";  
+  var pigBuiltinsU = pigBuiltins.split(" ").join("() ").split(" ");  
+  var pigBuiltinsL = pigBuiltins.toLowerCase().split(" ").join("() ").split(" ");   
+  var pigBuiltinsC = ("BagSize BinStorage Bloom BuildBloom ConstantSize CubeDimensions DoubleAbs "
+  + "DoubleAvg DoubleBase DoubleMax DoubleMin DoubleRound DoubleSum FloatAbs FloatAvg FloatMax "
+  + "FloatMin FloatRound FloatSum GenericInvoker IntAbs IntAvg IntMax IntMin IntSum "
+  + "InvokeForDouble InvokeForFloat InvokeForInt InvokeForLong InvokeForString Invoker "
+  + "IsEmpty JsonLoader JsonMetadata JsonStorage LongAbs LongAvg LongMax LongMin LongSum MapSize "
+  + "MonitoredUDF Nondeterministic OutputSchema PigStorage PigStreaming StringConcat StringMax "
+  + "StringMin StringSize TextLoader TupleSize Utf8StorageConverter").split(" ").join("() ").split(" ");
+                    
+  function getCompletions(token, context) {
+    var found = [], start = token.string;
+    function maybeAdd(str) {
+      if (str.indexOf(start) == 0 && !arrayContains(found, str)) found.push(str);
+    }
+    
+    function gatherCompletions(obj) {
+      if(obj == ":") {
+        forEach(pigTypesL, maybeAdd);
+      }
+      else {
+        forEach(pigBuiltinsU, maybeAdd);
+        forEach(pigBuiltinsL, maybeAdd);
+        forEach(pigBuiltinsC, maybeAdd);
+        forEach(pigTypesU, maybeAdd);
+        forEach(pigTypesL, maybeAdd);
+        forEach(pigKeywordsU, maybeAdd);
+        forEach(pigKeywordsL, maybeAdd);
+      }
+    }
+
+    if (context) {
+      // If this is a property, see if it belongs to some object we can
+      // find in the current environment.
+      var obj = context.pop(), base;
+
+      if (obj.className == "pig-word") 
+          base = obj.string;
+      else if(obj.className == "pig-type")
+          base = ":" + obj.string;
+        
+      while (base != null && context.length)
+        base = base[context.pop().string];
+      if (base != null) gatherCompletions(base);
+    }
+    return found;
+  }
+})();
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/runmode.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/runmode.js
new file mode 100644
index 0000000..fc58d85
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/runmode.js
@@ -0,0 +1,49 @@
+CodeMirror.runMode = function(string, modespec, callback, options) {
+  var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
+  var isNode = callback.nodeType == 1;
+  var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
+  if (isNode) {
+    var node = callback, accum = [], col = 0;
+    callback = function(text, style) {
+      if (text == "\n") {
+        accum.push("
");
+        col = 0;
+        return;
+      }
+      var escaped = "";
+      // HTML-escape and replace tabs
+      for (var pos = 0;;) {
+        var idx = text.indexOf("\t", pos);
+        if (idx == -1) {
+          escaped += CodeMirror.htmlEscape(text.slice(pos));
+          col += text.length - pos;
+          break;
+        } else {
+          col += idx - pos;
+          escaped += CodeMirror.htmlEscape(text.slice(pos, idx));
+          var size = tabSize - col % tabSize;
+          col += size;
+          for (var i = 0; i < size; ++i) escaped += " ";
+          pos = idx + 1;
+        }
+      }
+
+      if (style) 
+        accum.push("" + escaped + "");
+      else
+        accum.push(escaped);
+    }
+  }
+  var lines = CodeMirror.splitLines(string), state = CodeMirror.startState(mode);
+  for (var i = 0, e = lines.length; i < e; ++i) {
+    if (i) callback("\n");
+    var stream = new CodeMirror.StringStream(lines[i]);
+    while (!stream.eol()) {
+      var style = mode.token(stream, state);
+      callback(stream.current(), style, i, stream.start);
+      stream.start = stream.pos;
+    }
+  }
+  if (isNode)
+    node.innerHTML = accum.join("");
+};
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/search.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/search.js
new file mode 100644
index 0000000..c5a2bcc
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/search.js
@@ -0,0 +1,118 @@
+// Define search commands. Depends on dialog.js or another
+// implementation of the openDialog method.
+
+// Replace works a little oddly -- it will do the replace on the next
+// Ctrl-G (or whatever is bound to findNext) press. You prevent a
+// replace by making sure the match is no longer selected when hitting
+// Ctrl-G.
+
+(function() {
+  function SearchState() {
+    this.posFrom = this.posTo = this.query = null;
+    this.marked = [];
+  }
+  function getSearchState(cm) {
+    return cm._searchState || (cm._searchState = new SearchState());
+  }
+  function getSearchCursor(cm, query, pos) {
+    // Heuristic: if the query string is all lowercase, do a case insensitive search.
+    return cm.getSearchCursor(query, pos, typeof query == "string" && query == query.toLowerCase());
+  }
+  function dialog(cm, text, shortText, f) {
+    if (cm.openDialog) cm.openDialog(text, f);
+    else f(prompt(shortText, ""));
+  }
+  function confirmDialog(cm, text, shortText, fs) {
+    if (cm.openConfirm) cm.openConfirm(text, fs);
+    else if (confirm(shortText)) fs[0]();
+  }
+  function parseQuery(query) {
+    var isRE = query.match(/^\/(.*)\/([a-z]*)$/);
+    return isRE ? new RegExp(isRE[1], isRE[2].indexOf("i") == -1 ? "" : "i") : query;
+  }
+  var queryDialog =
+    'Search:  (Use /re/ syntax for regexp search)';
+  function doSearch(cm, rev) {
+    var state = getSearchState(cm);
+    if (state.query) return findNext(cm, rev);
+    dialog(cm, queryDialog, "Search for:", function(query) {
+      cm.operation(function() {
+        if (!query || state.query) return;
+        state.query = parseQuery(query);
+        if (cm.lineCount() < 2000) { // This is too expensive on big documents.
+          for (var cursor = getSearchCursor(cm, query); cursor.findNext();)
+            state.marked.push(cm.markText(cursor.from(), cursor.to(), "CodeMirror-searching"));
+        }
+        state.posFrom = state.posTo = cm.getCursor();
+        findNext(cm, rev);
+      });
+    });
+  }
+  function findNext(cm, rev) {cm.operation(function() {
+    var state = getSearchState(cm);
+    var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
+    if (!cursor.find(rev)) {
+      cursor = getSearchCursor(cm, state.query, rev ? {line: cm.lineCount() - 1} : {line: 0, ch: 0});
+      if (!cursor.find(rev)) return;
+    }
+    cm.setSelection(cursor.from(), cursor.to());
+    state.posFrom = cursor.from(); state.posTo = cursor.to();
+  })}
+  function clearSearch(cm) {cm.operation(function() {
+    var state = getSearchState(cm);
+    if (!state.query) return;
+    state.query = null;
+    for (var i = 0; i < state.marked.length; ++i) state.marked[i].clear();
+    state.marked.length = 0;
+  })}
+
+  var replaceQueryDialog =
+    'Replace:  (Use /re/ syntax for regexp search)';
+  var replacementQueryDialog = 'With: ';
+  var doReplaceConfirm = "Replace?   ";
+  function replace(cm, all) {
+    dialog(cm, replaceQueryDialog, "Replace:", function(query) {
+      if (!query) return;
+      query = parseQuery(query);
+      dialog(cm, replacementQueryDialog, "Replace with:", function(text) {
+        if (all) {
+          cm.compoundChange(function() { cm.operation(function() {
+            for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
+              if (typeof query != "string") {
+                var match = cm.getRange(cursor.from(), cursor.to()).match(query);
+                cursor.replace(text.replace(/\$(\d)/, function(w, i) {return match[i];}));
+              } else cursor.replace(text);
+            }
+          })});
+        } else {
+          clearSearch(cm);
+          var cursor = getSearchCursor(cm, query, cm.getCursor());
+          function advance() {
+            var start = cursor.from(), match;
+            if (!(match = cursor.findNext())) {
+              cursor = getSearchCursor(cm, query);
+              if (!(match = cursor.findNext()) ||
+                  (start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
+            }
+            cm.setSelection(cursor.from(), cursor.to());
+            confirmDialog(cm, doReplaceConfirm, "Replace?",
+                          [function() {doReplace(match);}, advance]);
+          }
+          function doReplace(match) {
+            cursor.replace(typeof query == "string" ? text :
+                           text.replace(/\$(\d)/, function(w, i) {return match[i];}));
+            advance();
+          }
+          advance();
+        }
+      });
+    });
+  }
+
+  CodeMirror.commands.find = function(cm) {clearSearch(cm); doSearch(cm);};
+  CodeMirror.commands.findNext = doSearch;
+  CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
+  CodeMirror.commands.clearSearch = clearSearch;
+  CodeMirror.commands.replace = replace;
+  CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
+})();
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/searchcursor.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/searchcursor.js
new file mode 100644
index 0000000..ec3f73c
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/searchcursor.js
@@ -0,0 +1,117 @@
+(function(){
+  function SearchCursor(cm, query, pos, caseFold) {
+    this.atOccurrence = false; this.cm = cm;
+    if (caseFold == null && typeof query == "string") caseFold = false;
+
+    pos = pos ? cm.clipPos(pos) : {line: 0, ch: 0};
+    this.pos = {from: pos, to: pos};
+
+    // The matches method is filled in based on the type of query.
+    // It takes a position and a direction, and returns an object
+    // describing the next occurrence of the query, or null if no
+    // more matches were found.
+    if (typeof query != "string") // Regexp match
+      this.matches = function(reverse, pos) {
+        if (reverse) {
+          var line = cm.getLine(pos.line).slice(0, pos.ch), match = line.match(query), start = 0;
+          while (match) {
+            var ind = line.indexOf(match[0]);
+            start += ind;
+            line = line.slice(ind + 1);
+            var newmatch = line.match(query);
+            if (newmatch) match = newmatch;
+            else break;
+            start++;
+          }
+        }
+        else {
+          var line = cm.getLine(pos.line).slice(pos.ch), match = line.match(query),
+          start = match && pos.ch + line.indexOf(match[0]);
+        }
+        if (match)
+          return {from: {line: pos.line, ch: start},
+                  to: {line: pos.line, ch: start + match[0].length},
+                  match: match};
+      };
+    else { // String query
+      if (caseFold) query = query.toLowerCase();
+      var fold = caseFold ? function(str){return str.toLowerCase();} : function(str){return str;};
+      var target = query.split("\n");
+      // Different methods for single-line and multi-line queries
+      if (target.length == 1)
+        this.matches = function(reverse, pos) {
+          var line = fold(cm.getLine(pos.line)), len = query.length, match;
+          if (reverse ? (pos.ch >= len && (match = line.lastIndexOf(query, pos.ch - len)) != -1)
+              : (match = line.indexOf(query, pos.ch)) != -1)
+            return {from: {line: pos.line, ch: match},
+                    to: {line: pos.line, ch: match + len}};
+        };
+      else
+        this.matches = function(reverse, pos) {
+          var ln = pos.line, idx = (reverse ? target.length - 1 : 0), match = target[idx], line = fold(cm.getLine(ln));
+          var offsetA = (reverse ? line.indexOf(match) + match.length : line.lastIndexOf(match));
+          if (reverse ? offsetA >= pos.ch || offsetA != match.length
+              : offsetA <= pos.ch || offsetA != line.length - match.length)
+            return;
+          for (;;) {
+            if (reverse ? !ln : ln == cm.lineCount() - 1) return;
+            line = fold(cm.getLine(ln += reverse ? -1 : 1));
+            match = target[reverse ? --idx : ++idx];
+            if (idx > 0 && idx < target.length - 1) {
+              if (line != match) return;
+              else continue;
+            }
+            var offsetB = (reverse ? line.lastIndexOf(match) : line.indexOf(match) + match.length);
+            if (reverse ? offsetB != line.length - match.length : offsetB != match.length)
+              return;
+            var start = {line: pos.line, ch: offsetA}, end = {line: ln, ch: offsetB};
+            return {from: reverse ? end : start, to: reverse ? start : end};
+          }
+        };
+    }
+  }
+
+  SearchCursor.prototype = {
+    findNext: function() {return this.find(false);},
+    findPrevious: function() {return this.find(true);},
+
+    find: function(reverse) {
+      var self = this, pos = this.cm.clipPos(reverse ? this.pos.from : this.pos.to);
+      function savePosAndFail(line) {
+        var pos = {line: line, ch: 0};
+        self.pos = {from: pos, to: pos};
+        self.atOccurrence = false;
+        return false;
+      }
+
+      for (;;) {
+        if (this.pos = this.matches(reverse, pos)) {
+          this.atOccurrence = true;
+          return this.pos.match || true;
+        }
+        if (reverse) {
+          if (!pos.line) return savePosAndFail(0);
+          pos = {line: pos.line-1, ch: this.cm.getLine(pos.line-1).length};
+        }
+        else {
+          var maxLine = this.cm.lineCount();
+          if (pos.line == maxLine - 1) return savePosAndFail(maxLine);
+          pos = {line: pos.line+1, ch: 0};
+        }
+      }
+    },
+
+    from: function() {if (this.atOccurrence) return this.pos.from;},
+    to: function() {if (this.atOccurrence) return this.pos.to;},
+
+    replace: function(newText) {
+      var self = this;
+      if (this.atOccurrence)
+        self.pos.to = this.cm.replaceRange(newText, self.pos.from, self.pos.to);
+    }
+  };
+
+  CodeMirror.defineExtension("getSearchCursor", function(query, pos, caseFold) {
+    return new SearchCursor(this, query, pos, caseFold);
+  });
+})();
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.css b/codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.css
new file mode 100644
index 0000000..4387cb9
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.css
@@ -0,0 +1,16 @@
+.CodeMirror-completions {
+  position: absolute;
+  z-index: 10;
+  overflow: hidden;
+  -webkit-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+  -moz-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+  box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+}
+.CodeMirror-completions select {
+  background: #fafafa;
+  outline: none;
+  border: none;
+  padding: 0;
+  margin: 0;
+  font-family: monospace;
+}
diff --git a/codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.js b/codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.js
new file mode 100644
index 0000000..7decd58
--- /dev/null
+++ b/codemirror_ui/lib/CodeMirror-2.3/lib/util/simple-hint.js
@@ -0,0 +1,72 @@
+(function() {
+  CodeMirror.simpleHint = function(editor, getHints) {
+    // We want a single cursor position.
+    if (editor.somethingSelected()) return;
+    var result = getHints(editor);
+    if (!result || !result.list.length) return;
+    var completions = result.list;
+    function insert(str) {
+      editor.replaceRange(str, result.from, result.to);
+    }
+    // When there is only one completion, use it directly.
+    if (completions.length == 1) {insert(completions[0]); return true;}
+
+    // Build the select widget
+    var complete = document.createElement("div");
+    complete.className = "CodeMirror-completions";
+    var sel = complete.appendChild(document.createElement("select"));
+    // Opera doesn't move the selection when pressing up/down in a
+    // multi-select, but it does properly support the size property on
+    // single-selects, so no multi-select is necessary.
+    if (!window.opera) sel.multiple = true;
+    for (var i = 0; i < completions.length; ++i) {
+      var opt = sel.appendChild(document.createElement("option"));
+      opt.appendChild(document.createTextNode(completions[i]));
+    }
+    sel.firstChild.selected = true;
+    sel.size = Math.min(10, completions.length);
+    var pos = editor.cursorCoords();
+    complete.style.left = pos.x + "px";
+    complete.style.top = pos.yBot + "px";
+    document.body.appendChild(complete);
+    // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
+    var winW = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth);
+    if(winW - pos.x < sel.clientWidth)
+      complete.style.left = (pos.x - sel.clientWidth) + "px";
+    // Hack to hide the scrollbar.
+    if (completions.length <= 10)
+      complete.style.width = (sel.clientWidth - 1) + "px";
+
+    var done = false;
+    function close() {
+      if (done) return;
+      done = true;
+      complete.parentNode.removeChild(complete);
+    }
+    function pick() {
+      insert(completions[sel.selectedIndex]);
+      close();
+      setTimeout(function(){editor.focus();}, 50);
+    }
+    CodeMirror.connect(sel, "blur", close);
+    CodeMirror.connect(sel, "keydown", function(event) {
+      var code = event.keyCode;
+      // Enter
+      if (code == 13) {CodeMirror.e_stop(event); pick();}
+      // Escape
+      else if (code == 27) {CodeMirror.e_stop(event); close(); editor.focus();}
+      else if (code != 38 && code != 40) {
+        close(); editor.focus();
+        // Pass the event to the CodeMirror instance so that it can handle things like backspace properly.
+        editor.triggerOnKeyDown(event);
+        setTimeout(function(){CodeMirror.simpleHint(editor, getHints);}, 50);
+      }
+    });
+    CodeMirror.connect(sel, "dblclick", pick);
+
+    sel.focus();
+    // Opera sometimes ignores focusing a freshly created node
+    if (window.opera) setTimeout(function(){if (!done) sel.focus();}, 100);
+    return true;
+  };
+})();
-- 
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