kallithea: rhodecode/public/js/codemirror.js comparison

comparison rhodecode/public/js/codemirror.js @ 1305:166317d464f3 beta

Added server side file editing with commit

author	Marcin Kuzminski <marcin@python-works.com>
date	Tue, 03 May 2011 14:13:37 +0200
parents
children	a30689fc4f61

comparison

equal deleted inserted replaced

-:5a96551ee9c0
+:166317d464f3
+// 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. It's
+// 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. Takes care of scrolling
+// (if enabled).
+var wrapper = document.createElement("div");
+wrapper.className = "CodeMirror";
+// This mess creates the base DOM structure for the editor.
+wrapper.innerHTML =
+'<div style="position: relative">' + // Set to the height of the text, causes scrolling
+'<pre style="position: relative; height: 0; visibility: hidden; overflow: hidden;">' + // To measure line/char size
+'<span>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</span></pre>' +
+'<div style="position: relative">' + // Moved around its parent to cover visible view
+'<div class="CodeMirror-gutter"><div class="CodeMirror-gutter-text"></div></div>' +
+'<div style="overflow: hidden; position: absolute; width: 0; left: 0">' + // Wraps and hides input textarea
+'<textarea style="height: 1px; position: absolute; width: 1px;" wrap="off"></textarea></div>' +
+// Provides positioning relative to (visible) text origin
+'<div class="CodeMirror-lines"><div style="position: relative">' +
+'<pre class="CodeMirror-cursor">&#160;</pre>' + // Absolutely positioned blinky cursor
+'<div></div></div></div></div></div>'; // This DIV contains the actual code
+if (place.appendChild) place.appendChild(wrapper); else place(wrapper);
+// I've never seen more elegant code in my life.
+var code = wrapper.firstChild, measure = code.firstChild, mover = measure.nextSibling,
+gutter = mover.firstChild, gutterText = gutter.firstChild,
+inputDiv = gutter.nextSibling, input = inputDiv.firstChild,
+lineSpace = inputDiv.nextSibling.firstChild, cursor = lineSpace.firstChild, lineDiv = cursor.nextSibling;
+if (options.tabindex != null) input.tabindex = options.tabindex;
+if (!options.gutter && !options.lineNumbers) gutter.style.display = "none";
+// 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. lines an array of Line objects
+// (see Line constructor), work an array of lines that should be
+// parsed, and history the undo history (instance of History
+// constructor).
+var mode, lines = [new Line("")], work, history = new History(), 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. reducedSelection is a hack
+// to get around the fact that we can't create inverted
+// selections. See below.
+var shiftSelecting, reducedSelection;
+// Variables used by startOperation/endOperation to track what
+// happened during the operation.
+var updateInput, changes, textChanged, selectionChanged, leaveInputAlone;
+// Current visible range (may be bigger than the view window).
+var showingFrom = 0, showingTo = 0, lastHeight = 0, curKeyId = null;
+// editing will hold an object describing the things we put in the
+// textarea, to help figure out whether something changed.
+// bracketHighlighted is used to remember that a backet has been
+// marked.
+var editing, bracketHighlighted;
+// Initialize the content. Somewhat hacky (delayed prepareInput)
+// to work around browser issues.
+operation(function(){setValue(options.value || ""); updateInput = false;})();
+setTimeout(prepareInput, 20);
+// Register our event handlers.
+connect(wrapper, "mousedown", operation(onMouseDown));
+// 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(wrapper, "contextmenu", operation(onContextMenu));
+connect(code, "dblclick", operation(onDblClick));
+connect(wrapper, "scroll", function() {updateDisplay([]); if (options.onScroll) options.onScroll(instance);});
+connect(window, "resize", function() {updateDisplay(true);});
+connect(input, "keyup", operation(onKeyUp));
+connect(input, "keydown", operation(onKeyDown));
+connect(input, "keypress", operation(onKeyPress));
+connect(input, "focus", onFocus);
+connect(input, "blur", onBlur);
+connect(wrapper, "dragenter", function(e){e.stop();});
+connect(wrapper, "dragover", function(e){e.stop();});
+connect(wrapper, "drop", operation(onDrop));
+connect(wrapper, "paste", function(){input.focus(); fastPoll();});
+connect(input, "paste", function(){fastPoll();});
+connect(input, "cut", function(){fastPoll();});
+if (document.activeElement == input) onFocus();
+else onBlur();
+function isLine(l) {return l >= 0 && l < lines.length;}
+// 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 = {
+getValue: getValue,
+setValue: operation(setValue),
+getSelection: getSelection,
+replaceSelection: operation(replaceSelection),
+focus: function(){input.focus(); onFocus(); fastPoll();},
+setOption: function(option, value) {
+options[option] = value;
+if (option == "lineNumbers" || option == "gutter") gutterChanged();
+else if (option == "mode" || option == "indentUnit") loadMode();
+},
+getOption: function(option) {return options[option];},
+undo: operation(undo),
+redo: operation(redo),
+indentLine: operation(function(n) {if (isLine(n)) indentLine(n, "smart");}),
+historySize: function() {return {undo: history.done.length, redo: history.undone.length};},
+matchBrackets: operation(function(){matchBrackets(true);}),
+getTokenAt: function(pos) {
+pos = clipPos(pos);
+return lines[pos.line].getTokenAt(mode, getStateBefore(pos.line), pos.ch);
+},
+cursorCoords: function(start){
+if (start == null) start = sel.inverted;
+return pageCoords(start ? sel.from : sel.to);
+},
+charCoords: function(pos){return pageCoords(clipPos(pos));},
+coordsChar: function(coords) {
+var off = eltOffset(lineSpace);
+var line = Math.min(showingTo - 1, showingFrom + Math.floor(coords.y / lineHeight()));
+return clipPos({line: line, ch: charFromX(clipLine(line), coords.x)});
+},
+getSearchCursor: function(query, pos, caseFold) {return new SearchCursor(query, pos, caseFold);},
+markText: operation(function(a, b, c){return operation(markText(a, b, c));}),
+setMarker: addGutterMarker,
+clearMarker: removeGutterMarker,
+setLineClass: operation(setLineClass),
+lineInfo: lineInfo,
+addWidget: function(pos, node, scroll) {
+var pos = localCoords(clipPos(pos), true);
+node.style.top = (showingFrom * lineHeight() + pos.yBot + paddingTop()) + "px";
+node.style.left = (pos.x + paddingLeft()) + "px";
+code.appendChild(node);
+if (scroll)
+scrollIntoView(pos.x, pos.yBot, pos.x + node.offsetWidth, pos.yBot + node.offsetHeight);
+},
+lineCount: function() {return lines.length;},
+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) {
+if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch);
+else setCursor(line, ch);
+}),
+setSelection: operation(function(from, to) {setSelection(clipPos(from), clipPos(to || from));}),
+getLine: function(line) {if (isLine(line)) return lines[line].text;},
+setLine: operation(function(line, text) {
+if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: lines[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));},
+operation: function(f){return operation(f)();},
+refresh: function(){updateDisplay(true);},
+getInputField: function(){return input;},
+getWrapperElement: function(){return wrapper;}
+};
+function setValue(code) {
+history = null;
+var top = {line: 0, ch: 0};
+updateLines(top, {line: lines.length - 1, ch: lines[lines.length-1].text.length},
+splitLines(code), top, top);
+history = new History();
+}
+function getValue(code) {
+var text = [];
+for (var i = 0, l = lines.length; i < l; ++i)
+text.push(lines[i].text);
+return text.join("\n");
+}
+function onMouseDown(e) {
+// First, see if this is a click in the gutter
+for (var n = e.target(); n != wrapper; n = n.parentNode)
+if (n.parentNode == gutterText) {
+if (options.onGutterClick)
+options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom);
+return e.stop();
+}
+if (gecko && e.button() == 3) onContextMenu(e);
+if (e.button() != 1) return;
+// For button 1, if it was clicked inside the editor
+// (posFromMouse returning non-null), we have to adjust the
+// selection.
+var start = posFromMouse(e), last = start, going;
+if (!start) {if (e.target() == wrapper) e.stop(); return;}
+setCursor(start.line, start.ch, false);
+if (!focused) onFocus();
+e.stop();
+// And then we have to see if it's a drag event, in which case
+// the dragged-over text must be selected.
+function end() {
+input.focus();
+updateInput = true;
+move(); up();
+}
+function extend(e) {
+var cur = posFromMouse(e, true);
+if (cur && !posEq(cur, last)) {
+if (!focused) onFocus();
+last = cur;
+setSelection(start, cur);
+updateInput = false;
+var visible = visibleLines();
+if (cur.line >= visible.to || cur.line < visible.from)
+going = setTimeout(operation(function(){extend(e);}), 150);
+}
+}
+var move = connect(document, "mousemove", operation(function(e) {
+clearTimeout(going);
+e.stop();
+extend(e);
+}), true);
+var up = connect(document, "mouseup", operation(function(e) {
+clearTimeout(going);
+var cur = posFromMouse(e);
+if (cur) setSelection(start, cur);
+e.stop();
+end();
+}), true);
+}
+function onDblClick(e) {
+var pos = posFromMouse(e);
+if (!pos) return;
+selectWordAt(pos);
+e.stop();
+}
+function onDrop(e) {
+var pos = posFromMouse(e, true), files = e.e.dataTransfer.files;
+if (!pos || options.readOnly) return;
+if (files && files.length && window.FileReader && window.File) {
+var n = files.length, text = Array(n), read = 0;
+for (var i = 0; i < n; ++i) loadFile(files[i], i);
+function loadFile(file, i) {
+var reader = new FileReader;
+reader.onload = function() {
+text[i] = reader.result;
+if (++read == n) replaceRange(text.join(""), clipPos(pos), clipPos(pos));
+};
+reader.readAsText(file);
+}
+}
+else {
+try {
+var text = e.e.dataTransfer.getData("Text");
+if (text) replaceRange(text, pos, pos);
+}
+catch(e){}
+}
+}
+function onKeyDown(e) {
+if (!focused) onFocus();
+var code = e.e.keyCode;
+// Tries to detect ctrl on non-mac, cmd on mac.
+var mod = (mac ? e.e.metaKey : e.e.ctrlKey) && !e.e.altKey, anyMod = e.e.ctrlKey || e.e.altKey || e.e.metaKey;
+if (code == 16 || e.e.shiftKey) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
+else shiftSelecting = null;
+// First give onKeyEvent option a chance to handle this.
+if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e.e))) return;
+if (code == 33 || code == 34) {scrollPage(code == 34); return e.stop();} // page up/down
+if (mod && (code == 36 || code == 35)) {scrollEnd(code == 36); return e.stop();} // ctrl-home/end
+if (mod && code == 65) {selectAll(); return e.stop();} // ctrl-a
+if (!options.readOnly) {
+if (!anyMod && code == 13) {return;} // enter
+if (!anyMod && code == 9 && handleTab(e.e.shiftKey)) return e.stop(); // tab
+if (mod && code == 90) {undo(); return e.stop();} // ctrl-z
+if (mod && ((e.e.shiftKey && code == 90) || code == 89)) {redo(); return e.stop();} // ctrl-shift-z, ctrl-y
+}
+// Key id to use in the movementKeys map. We also pass it to
+// fastPoll in order to 'self learn'. We need this because
+// reducedSelection, the hack where we collapse the selection to
+// its start when it is inverted and a movement key is pressed
+// (and later restore it again), shouldn't be used for
+// non-movement keys.
+curKeyId = (mod ? "c" : "") + code;
+if (sel.inverted && movementKeys.hasOwnProperty(curKeyId)) {
+var range = selRange(input);
+if (range) {
+reducedSelection = {anchor: range.start};
+setSelRange(input, range.start, range.start);
+}
+}
+fastPoll(curKeyId);
+}
+function onKeyUp(e) {
+if (reducedSelection) {
+reducedSelection = null;
+updateInput = true;
+}
+if (e.e.keyCode == 16) shiftSelecting = null;
+}
+function onKeyPress(e) {
+if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e.e))) return;
+if (options.electricChars && mode.electricChars) {
+var ch = String.fromCharCode(e.e.charCode == null ? e.e.keyCode : e.e.charCode);
+if (mode.electricChars.indexOf(ch) > -1)
+setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 50);
+}
+var code = e.e.keyCode;
+// Re-stop tab and enter. Necessary on some browsers.
+if (code == 13) {handleEnter(); e.stop();}
+else if (code == 9 && options.tabMode != "default") e.stop();
+else fastPoll(curKeyId);
+}
+function onFocus() {
+if (!focused && options.onFocus) options.onFocus(instance);
+focused = true;
+slowPoll();
+if (wrapper.className.search(/\bCodeMirror-focused\b/) == -1)
+wrapper.className += " CodeMirror-focused";
+restartBlink();
+}
+function onBlur() {
+if (focused && options.onBlur) options.onBlur(instance);
+clearInterval(blinker);
+shiftSelecting = null;
+focused = false;
+wrapper.className = wrapper.className.replace(" CodeMirror-focused", "");
+}
+// 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 (history) {
+var old = [];
+for (var i = from.line, e = to.line + 1; i < e; ++i) old.push(lines[i].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) {
+var change = from.pop();
+if (change) {
+var replaced = [], end = change.start + change.added;
+for (var i = change.start; i < end; ++i) replaced.push(lines[i].text);
+to.push({start: change.start, added: change.old.length, old: replaced});
+var pos = clipPos({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: lines[end-1].text.length}, change.old, pos, pos);
+}
+}
+function undo() {unredoHelper(history.done, history.undone);}
+function redo() {unredoHelper(history.undone, history.done);}
+function updateLinesNoUndo(from, to, newText, selFrom, selTo) {
+var nlines = to.line - from.line, firstLine = lines[from.line], lastLine = lines[to.line];
+// First adjust the line structure, taking some care to leave highlighting intact.
+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]);
+var spliceargs = [from.line + 1, nlines];
+firstLine.replace(from.ch, firstLine.text.length, newText[0]);
+for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i]));
+spliceargs.push(lastLine);
+lines.splice.apply(lines, spliceargs);
+}
+}
+else if (newText.length == 1) {
+firstLine.replace(from.ch, firstLine.text.length, newText[0] + lastLine.text.slice(to.ch));
+lines.splice(from.line + 1, nlines);
+}
+else {
+var spliceargs = [from.line + 1, nlines - 1];
+firstLine.replace(from.ch, firstLine.text.length, newText[0]);
+lastLine.replace(0, to.ch, newText[newText.length-1]);
+for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i]));
+lines.splice.apply(lines, spliceargs);
+}
+// 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);
+}
+if (newText.length) newWork.push(from.line);
+work = newWork;
+startWorker(100);
+// Remember that these lines changed, for updating the display
+changes.push({from: from.line, to: to.line + 1, diff: lendiff});
+textChanged = true;
+// Update the selection
+function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;}
+setSelection(selFrom, selTo, updateLine(sel.from.line), updateLine(sel.to.line));
+// Make sure the scroll-size div has the correct height.
+code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px";
+}
+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 lines[l1].text.slice(from.ch, to.ch);
+var code = [lines[l1].text.slice(from.ch)];
+for (var i = l1 + 1; i < l2; ++i) code.push(lines[i].text);
+code.push(lines[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(2000, function() {
+startOperation();
+readInput();
+if (focused) slowPoll();
+endOperation();
+});
+}
+function fastPoll(keyId) {
+var missed = false;
+pollingFast = true;
+function p() {
+startOperation();
+var changed = readInput();
+if (changed == "moved" && keyId) movementKeys[keyId] = true;
+if (!changed && !missed) {missed = true; poll.set(80, p);}
+else {pollingFast = false; slowPoll();}
+endOperation();
+}
+poll.set(20, p);
+}
+// Inspects the textarea, compares its state (content, selection)
+// to the data in the editing variable, and updates the editor
+// content or cursor if something changed.
+function readInput() {
+var changed = false, text = input.value, sr = selRange(input);
+if (!sr) return false;
+var changed = editing.text != text, rs = reducedSelection;
+var moved = changed || sr.start != editing.start || sr.end != (rs ? editing.start : editing.end);
+if (reducedSelection && !moved && sel.from.line == 0 && sel.from.ch == 0)
+reducedSelection = null;
+else if (!moved) return false;
+if (changed) {
+shiftSelecting = reducedSelection = null;
+if (options.readOnly) {updateInput = true; return "changed";}
+}
+// Compute selection start and end based on start/end offsets in textarea
+function computeOffset(n, startLine) {
+var pos = 0;
+for (;;) {
+var found = text.indexOf("\n", pos);
+if (found == -1 || (text.charAt(found-1) == "\r" ? found - 1 : found) >= n)
+return {line: startLine, ch: n - pos};
+++startLine;
+pos = found + 1;
+}
+}
+var from = computeOffset(sr.start, editing.from),
+to = computeOffset(sr.end, editing.from);
+// Here we have to take the reducedSelection hack into account,
+// so that you can, for example, press shift-up at the start of
+// your selection and have the right thing happen.
+if (rs) {
+from = sr.start == rs.anchor ? to : from;
+to = shiftSelecting ? sel.to : sr.start == rs.anchor ? from : to;
+if (!posLess(from, to)) {
+reducedSelection = null;
+sel.inverted = false;
+var tmp = from; from = to; to = tmp;
+}
+}
+// In some cases (cursor on same line as before), we don't have
+// to update the textarea content at all.
+if (from.line == to.line && from.line == sel.from.line && from.line == sel.to.line && !shiftSelecting)
+updateInput = false;
+// Magic mess to extract precise edited range from the changed
+// string.
+if (changed) {
+var start = 0, end = text.length, len = Math.min(end, editing.text.length);
+var c, line = editing.from, nl = -1;
+while (start < len && (c = text.charAt(start)) == editing.text.charAt(start)) {
+++start;
+if (c == "\n") {line++; nl = start;}
+}
+var ch = nl > -1 ? start - nl : start, endline = editing.to - 1, edend = editing.text.length;
+for (;;) {
+c = editing.text.charAt(edend);
+if (c == "\n") endline--;
+if (text.charAt(end) != c) {++end; ++edend; break;}
+if (edend <= start || end <= start) break;
+--end; --edend;
+}
+var nl = editing.text.lastIndexOf("\n", edend - 1), endch = nl == -1 ? edend : edend - nl - 1;
+updateLines({line: line, ch: ch}, {line: endline, ch: endch}, splitLines(text.slice(start, end)), from, to);
+if (line != endline || from.line != line) updateInput = true;
+}
+else setSelection(from, to);
+editing.text = text; editing.start = sr.start; editing.end = sr.end;
+return changed ? "changed" : moved ? "moved" : false;
+}
+// Set the textarea content and selection range to match the
+// editor state.
+function prepareInput() {
+var text = [];
+var from = Math.max(0, sel.from.line - 1), to = Math.min(lines.length, sel.to.line + 2);
+for (var i = from; i < to; ++i) text.push(lines[i].text);
+text = input.value = text.join(lineSep);
+var startch = sel.from.ch, endch = sel.to.ch;
+for (var i = from; i < sel.from.line; ++i)
+startch += lineSep.length + lines[i].text.length;
+for (var i = from; i < sel.to.line; ++i)
+endch += lineSep.length + lines[i].text.length;
+editing = {text: text, from: from, to: to, start: startch, end: endch};
+setSelRange(input, startch, reducedSelection ? startch : endch);
+}
+function scrollCursorIntoView() {
+var cursor = localCoords(sel.inverted ? sel.from : sel.to);
+return scrollIntoView(cursor.x, cursor.y, cursor.x, cursor.yBot);
+}
+function scrollIntoView(x1, y1, x2, y2) {
+var pl = paddingLeft(), pt = paddingTop();
+y1 += pt; y2 += pt; x1 += pl; x2 += pl;
+var screen = wrapper.clientHeight, screentop = wrapper.scrollTop, scrolled = false, result = true;
+if (y1 < screentop) {wrapper.scrollTop = Math.max(0, y1 - 10); scrolled = true;}
+else if (y2 > screentop + screen) {wrapper.scrollTop = y2 + 10 - screen; scrolled = true;}
+var screenw = wrapper.clientWidth, screenleft = wrapper.scrollLeft;
+if (x1 < screenleft) {wrapper.scrollLeft = Math.max(0, x1 - 10); scrolled = true;}
+else if (x2 > screenw + screenleft) {
+wrapper.scrollLeft = x2 + 10 - screenw;
+scrolled = true;
+if (x2 > code.clientWidth) result = false;
+}
+if (scrolled && options.onScroll) options.onScroll(instance);
+return result;
+}
+function visibleLines() {
+var lh = lineHeight(), top = wrapper.scrollTop - paddingTop();
+return {from: Math.min(lines.length, Math.max(0, Math.floor(top / lh))),
+to: Math.min(lines.length, Math.ceil((top + wrapper.clientHeight) / lh))};
+}
+// 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) {
+if (!wrapper.clientWidth) {
+showingFrom = showingTo = 0;
+return;
+}
+// First create a range of theoretically intact lines, and punch
+// holes in that using the change info.
+var intact = changes === true ? [] : [{from: showingFrom, to: showingTo, domStart: 0}];
+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)
+intact2.push({from: range.from + diff, to: range.to + diff, domStart: range.domStart});
+else if (range.to <= change.from)
+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;
+}
+// Then, determine which lines we'd want to see, and which
+// updates have to be made to get there.
+var visible = visibleLines();
+var from = Math.min(showingFrom, Math.max(visible.from - 3, 0)),
+to = Math.min(lines.length, Math.max(showingTo, visible.to + 3)),
+updates = [], domPos = 0, domEnd = showingTo - showingFrom, pos = from, changedLines = 0;
+for (var i = 0, l = intact.length; i < l; ++i) {
+var range = intact[i];
+if (range.to <= from) continue;
+if (range.from >= to) break;
+if (range.domStart > domPos || range.from > pos) {
+updates.push({from: pos, to: range.from, domSize: range.domStart - domPos, domStart: domPos});
+changedLines += range.from - pos;
+}
+pos = range.to;
+domPos = range.domStart + (range.to - range.from);
+}
+if (domPos != domEnd || pos != to) {
+changedLines += Math.abs(to - pos);
+updates.push({from: pos, to: to, domSize: domEnd - domPos, domStart: domPos});
+}
+if (!updates.length) return;
+lineDiv.style.display = "none";
+// If more than 30% of the screen needs update, just do a full
+// redraw (which is quicker than patching)
+if (changedLines > (visible.to - visible.from) * .3)
+refreshDisplay(from = Math.max(visible.from - 10, 0), to = Math.min(visible.to + 7, lines.length));
+// Otherwise, only update the stuff that needs updating.
+else
+patchDisplay(updates);
+lineDiv.style.display = "";
+// Position the mover div to align with the lines it's supposed
+// to be showing (which will cover the visible display)
+var different = from != showingFrom || to != showingTo || lastHeight != wrapper.clientHeight;
+showingFrom = from; showingTo = to;
+mover.style.top = (from * lineHeight()) + "px";
+if (different) {
+lastHeight = wrapper.clientHeight;
+code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px";
+updateGutter();
+}
+// 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(updates) + " size=" + (showingTo - showingFrom) +
+" nodes=" + lineDiv.childNodes.length);
+updateCursor();
+}
+function refreshDisplay(from, to) {
+var html = [], start = {line: from, ch: 0}, inSel = posLess(sel.from, start) && !posLess(sel.to, start);
+for (var i = from; i < to; ++i) {
+var ch1 = null, ch2 = null;
+if (inSel) {
+ch1 = 0;
+if (sel.to.line == i) {inSel = false; ch2 = sel.to.ch;}
+}
+else if (sel.from.line == i) {
+if (sel.to.line == i) {ch1 = sel.from.ch; ch2 = sel.to.ch;}
+else {inSel = true; ch1 = sel.from.ch;}
+}
+html.push(lines[i].getHTML(ch1, ch2, true));
+}
+lineDiv.innerHTML = html.join("");
+}
+function patchDisplay(updates) {
+// Slightly different algorithm for IE (badInnerHTML), since
+// there .innerHTML on PRE nodes is dumb, and discards
+// whitespace.
+var sfrom = sel.from.line, sto = sel.to.line, off = 0,
+scratch = badInnerHTML && document.createElement("div");
+for (var i = 0, e = updates.length; i < e; ++i) {
+var rec = updates[i];
+var extra = (rec.to - rec.from) - rec.domSize;
+var nodeAfter = lineDiv.childNodes[rec.domStart + rec.domSize + off] || null;
+if (badInnerHTML)
+for (var j = Math.max(-extra, rec.domSize); j > 0; --j)
+lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild);
+else if (extra) {
+for (var j = Math.max(0, extra); j > 0; --j)
+lineDiv.insertBefore(document.createElement("pre"), nodeAfter);
+for (var j = Math.max(0, -extra); j > 0; --j)
+lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild);
+}
+var node = lineDiv.childNodes[rec.domStart + off], inSel = sfrom < rec.from && sto >= rec.from;
+for (var j = rec.from; j < rec.to; ++j) {
+var ch1 = null, ch2 = null;
+if (inSel) {
+ch1 = 0;
+if (sto == j) {inSel = false; ch2 = sel.to.ch;}
+}
+else if (sfrom == j) {
+if (sto == j) {ch1 = sel.from.ch; ch2 = sel.to.ch;}
+else {inSel = true; ch1 = sel.from.ch;}
+}
+if (badInnerHTML) {
+scratch.innerHTML = lines[j].getHTML(ch1, ch2, true);
+lineDiv.insertBefore(scratch.firstChild, nodeAfter);
+}
+else {
+node.innerHTML = lines[j].getHTML(ch1, ch2, false);
+node.className = lines[j].className || "";
+node = node.nextSibling;
+}
+}
+off += extra;
+}
+}
+function updateGutter() {
+if (!options.gutter && !options.lineNumbers) return;
+var hText = mover.offsetHeight, hEditor = wrapper.clientHeight;
+gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
+var html = [];
+for (var i = showingFrom; i < showingTo; ++i) {
+var marker = lines[i].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 ? '<pre class="' + marker.style + '">' : "<pre>"), text, "</pre>");
+}
+gutter.style.display = "none";
+gutterText.innerHTML = html.join("");
+var minwidth = String(lines.length).length, firstNode = gutterText.firstChild, val = eltText(firstNode), pad = "";
+while (val.length + pad.length < minwidth) pad += "\u00a0";
+if (pad) firstNode.insertBefore(document.createTextNode(pad), firstNode.firstChild);
+gutter.style.display = "";
+lineSpace.style.marginLeft = gutter.offsetWidth + "px";
+}
+function updateCursor() {
+var head = sel.inverted ? sel.from : sel.to;
+var x = charX(head.line, head.ch) + "px", y = (head.line - showingFrom) * lineHeight() + "px";
+inputDiv.style.top = y; inputDiv.style.left = x;
+if (posEq(sel.from, sel.to)) {
+cursor.style.top = y; cursor.style.left = x;
+cursor.style.display = "";
+}
+else cursor.style.display = "none";
+}
+// 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) {
+if (posEq(sel.from, from) && posEq(sel.to, to)) return;
+var sh = shiftSelecting && clipPos(shiftSelecting);
+if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
+if (sh) {
+if (posLess(sh, from)) from = sh;
+else if (posLess(to, sh)) to = sh;
+}
+var startEq = posEq(sel.to, to), endEq = posEq(sel.from, from);
+if (posEq(from, to)) sel.inverted = false;
+else if (startEq && !endEq) sel.inverted = true;
+else if (endEq && !startEq) sel.inverted = false;
+// Some ugly logic used to only mark the lines that actually did
+// see a change in selection as changed, rather than the whole
+// selected range.
+if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
+if (posEq(from, to)) {
+if (!posEq(sel.from, sel.to))
+changes.push({from: oldFrom, to: oldTo + 1});
+}
+else if (posEq(sel.from, sel.to)) {
+changes.push({from: from.line, to: to.line + 1});
+}
+else {
+if (!posEq(from, sel.from)) {
+if (from.line < oldFrom)
+changes.push({from: from.line, to: Math.min(to.line, oldFrom) + 1});
+else
+changes.push({from: oldFrom, to: Math.min(oldTo, from.line) + 1});
+}
+if (!posEq(to, sel.to)) {
+if (to.line < oldTo)
+changes.push({from: Math.max(oldFrom, from.line), to: oldTo + 1});
+else
+changes.push({from: Math.max(from.line, oldTo), to: to.line + 1});
+}
+}
+sel.from = from; sel.to = to;
+selectionChanged = true;
+}
+function setCursor(line, ch) {
+var pos = clipPos({line: line, ch: ch || 0});
+setSelection(pos, pos);
+}
+function clipLine(n) {return Math.max(0, Math.min(n, lines.length-1));}
+function clipPos(pos) {
+if (pos.line < 0) return {line: 0, ch: 0};
+if (pos.line >= lines.length) return {line: lines.length-1, ch: lines[lines.length-1].text.length};
+var ch = pos.ch, linelen = lines[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 scrollPage(down) {
+var linesPerPage = Math.floor(wrapper.clientHeight / lineHeight()), head = sel.inverted ? sel.from : sel.to;
+setCursor(head.line + (Math.max(linesPerPage - 1, 1) * (down ? 1 : -1)), head.ch);
+}
+function scrollEnd(top) {
+setCursor(top ? 0 : lines.length - 1);
+}
+function selectAll() {
+var endLine = lines.length - 1;
+setSelection({line: 0, ch: 0}, {line: endLine, ch: lines[endLine].text.length});
+}
+function selectWordAt(pos) {
+var line = lines[pos.line].text;
+var start = pos.ch, end = pos.ch;
+while (start > 0 && /\w/.test(line.charAt(start - 1))) --start;
+while (end < line.length - 1 && /\w/.test(line.charAt(end))) ++end;
+setSelection({line: pos.line, ch: start}, {line: pos.line, ch: end});
+}
+function handleEnter() {
+replaceSelection("\n", "end");
+if (options.enterMode != "flat")
+indentLine(sel.from.line, options.enterMode == "keep" ? "prev" : "smart");
+}
+function handleTab(shift) {
+shiftSelecting = null;
+switch (options.tabMode) {
+case "default":
+return false;
+case "indent":
+for (var i = sel.from.line, e = sel.to.line; i <= e; ++i) indentLine(i, "smart");
+break;
+case "classic":
+if (posEq(sel.from, sel.to)) {
+if (shift) indentLine(sel.from.line, "smart");
+else replaceSelection("\t", "end");
+break;
+}
+case "shift":
+for (var i = sel.from.line, e = sel.to.line; i <= e; ++i) indentLine(i, shift ? "subtract" : "add");
+break;
+}
+return true;
+}
+function indentLine(n, how) {
+if (how == "smart") {
+if (!mode.indent) how = "prev";
+else var state = getStateBefore(n);
+}
+var line = lines[n], curSpace = line.indentation(), curSpaceString = line.text.match(/^\s*/)[0], indentation;
+if (how == "prev") {
+if (n) indentation = lines[n-1].indentation();
+else indentation = 0;
+}
+else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length));
+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 / tabSize); i; --i) {pos += 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);
+for (var i = 0, l = lines.length; i < l; ++i)
+lines[i].stateAfter = null;
+work = [0];
+}
+function gutterChanged() {
+var visible = options.gutter || options.lineNumbers;
+gutter.style.display = visible ? "" : "none";
+if (visible) updateGutter();
+else lineDiv.parentNode.style.marginLeft = 0;
+}
+function markText(from, to, className) {
+from = clipPos(from); to = clipPos(to);
+var accum = [];
+function add(line, from, to, className) {
+var line = lines[line], mark = line.addMark(from, to, className);
+mark.line = line;
+accum.push(mark);
+}
+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, 0, null, className);
+add(to.line, 0, to.ch, className);
+}
+changes.push({from: from.line, to: to.line + 1});
+return function() {
+var start, end;
+for (var i = 0; i < accum.length; ++i) {
+var mark = accum[i], found = indexOf(lines, mark.line);
+mark.line.removeMark(mark);
+if (found > -1) {
+if (start == null) start = found;
+end = found;
+}
+}
+if (start != null) changes.push({from: start, to: end + 1});
+};
+}
+function addGutterMarker(line, text, className) {
+if (typeof line == "number") line = lines[clipLine(line)];
+line.gutterMarker = {text: text, style: className};
+updateGutter();
+return line;
+}
+function removeGutterMarker(line) {
+if (typeof line == "number") line = lines[clipLine(line)];
+line.gutterMarker = null;
+updateGutter();
+}
+function setLineClass(line, className) {
+if (typeof line == "number") {
+var no = line;
+line = lines[clipLine(line)];
+}
+else {
+var no = indexOf(lines, line);
+if (no == -1) return null;
+}
+line.className = className;
+changes.push({from: no, to: no + 1});
+return line;
+}
+function lineInfo(line) {
+if (typeof line == "number") {
+var n = line;
+line = lines[line];
+if (!line) return null;
+}
+else {
+var n = indexOf(lines, line);
+if (n == -1) return null;
+}
+var marker = line.gutterMarker;
+return {line: n, text: line.text, markerText: marker && marker.text, markerClass: marker && marker.style};
+}
+// These are used to go from pixel positions to character
+// positions, taking tabs into account.
+function charX(line, pos) {
+var text = lines[line].text, span = measure.firstChild;
+if (text.lastIndexOf("\t", pos) == -1) return pos * charWidth();
+var old = span.firstChild.nodeValue;
+try {
+span.firstChild.nodeValue = text.slice(0, pos);
+return span.offsetWidth;
+} finally {span.firstChild.nodeValue = old;}
+}
+function charFromX(line, x) {
+var text = lines[line].text, cw = charWidth();
+if (x <= 0) return 0;
+if (text.indexOf("\t") == -1) return Math.min(text.length, Math.round(x / cw));
+var mspan = measure.firstChild, mtext = mspan.firstChild, old = mtext.nodeValue;
+try {
+mtext.nodeValue = text;
+var from = 0, fromX = 0, to = text.length, toX = mspan.offsetWidth;
+if (x > toX) return to;
+for (;;) {
+if (to - from <= 1) return (toX - x > x - fromX) ? from : to;
+var middle = Math.ceil((from + to) / 2);
+mtext.nodeValue = text.slice(0, middle);
+var curX = mspan.offsetWidth;
+if (curX > x) {to = middle; toX = curX;}
+else {from = middle; fromX = curX;}
+}
+} finally {mtext.nodeValue = old;}
+}
+function localCoords(pos, inLineWrap) {
+var lh = lineHeight(), line = pos.line - (inLineWrap ? showingFrom : 0);
+return {x: charX(pos.line, pos.ch), y: line * lh, yBot: (line + 1) * lh};
+}
+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};
+}
+function lineHeight() {
+var nlines = lineDiv.childNodes.length;
+if (nlines) return lineDiv.offsetHeight / nlines;
+else return measure.firstChild.offsetHeight || 1;
+}
+function charWidth() {return (measure.firstChild.offsetWidth || 320) / 40;}
+function paddingTop() {return lineSpace.offsetTop;}
+function paddingLeft() {return lineSpace.offsetLeft;}
+function posFromMouse(e, liberal) {
+var off = eltOffset(lineSpace),
+x = e.pageX() - off.left,
+y = e.pageY() - off.top;
+if (!liberal && e.target() != lineSpace.parentNode && !(e.target() == wrapper && y > (lines.length * lineHeight())))
+for (var n = e.target(); n != lineDiv && n != cursor; n = n.parentNode)
+if (!n || n == wrapper) return null;
+var line = showingFrom + Math.floor(y / lineHeight());
+return clipPos({line: line, ch: charFromX(clipLine(line), x)});
+}
+function onContextMenu(e) {
+var pos = posFromMouse(e);
+if (!pos || window.opera) return; // Opera is difficult.
+if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
+setCursor(pos.line, pos.ch);
+var oldCSS = input.style.cssText;
+input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.pageY() - 1) +
+"px; left: " + (e.pageX() - 1) + "px; z-index: 1000; background: white; " +
+"border-width: 0; outline: none; overflow: hidden;";
+var val = input.value = getSelection();
+input.focus();
+setSelRange(input, 0, val.length);
+if (gecko) e.stop();
+leaveInputAlone = true;
+setTimeout(function() {
+if (input.value != val) operation(replaceSelection)(input.value, "end");
+input.style.cssText = oldCSS;
+leaveInputAlone = false;
+prepareInput();
+slowPoll();
+}, 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 = lines[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] != null && 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 + 50, lines.length) : Math.max(0, i - 50); i != e; i+=d) {
+var line = lines[i], first = i == head.line;
+var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length);
+if (found) {
+var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
+var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style),
+two = markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style);
+var clear = operation(function(){one(); two();});
+if (autoclear) setTimeout(clear, 800);
+else bracketHighlighted = clear;
+break;
+}
+}
+}
+// 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 = lines[search-1];
+if (line.stateAfter) return search;
+var indented = line.indentation();
+if (minline == null || minindent > indented) {
+minline = search;
+minindent = indented;
+}
+}
+return minline;
+}
+function getStateBefore(n) {
+var start = findStartLine(n), state = start && lines[start-1].stateAfter;
+if (!state) state = startState(mode);
+else state = copyState(mode, state);
+for (var i = start; i < n; ++i) {
+var line = lines[i];
+line.highlight(mode, state);
+line.stateAfter = copyState(mode, state);
+}
+if (!lines[n].stateAfter) work.push(n);
+return state;
+}
+function highlightWorker() {
+var end = +new Date + options.workTime;
+while (work.length) {
+if (!lines[showingFrom].stateAfter) var task = showingFrom;
+else var task = work.pop();
+if (task >= lines.length) continue;
+var start = findStartLine(task), state = start && lines[start-1].stateAfter;
+if (state) state = copyState(mode, state);
+else state = startState(mode);
+for (var i = start, l = lines.length; i < l; ++i) {
+var line = lines[i], hadState = line.stateAfter;
+if (+new Date > end) {
+work.push(i);
+startWorker(options.workDelay);
+changes.push({from: task, to: i});
+return;
+}
+var changed = line.highlight(mode, state);
+line.stateAfter = copyState(mode, state);
+if (hadState && !changed && line.text) break;
+}
+changes.push({from: task, to: i});
+}
+}
+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 = null; changes = []; textChanged = selectionChanged = false;
+}
+function endOperation() {
+var reScroll = false;
+if (selectionChanged) reScroll = !scrollCursorIntoView();
+if (changes.length) updateDisplay(changes);
+else if (selectionChanged) updateCursor();
+if (reScroll) scrollCursorIntoView();
+if (selectionChanged) restartBlink();
+// updateInput can be set to a boolean value to force/prevent an
+// update.
+if (!leaveInputAlone && (updateInput === true || (updateInput !== false && selectionChanged)))
+prepareInput();
+if (selectionChanged && options.onCursorActivity)
+options.onCursorActivity(instance);
+if (textChanged && options.onChange)
+options.onChange(instance);
+if (selectionChanged && options.matchBrackets)
+setTimeout(operation(function() {
+if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
+matchBrackets(false);
+}), 20);
+}
+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 SearchCursor(query, pos, caseFold) {
+this.atOccurrence = false;
+if (caseFold == null) caseFold = typeof query == "string" && query == query.toLowerCase();
+if (pos && typeof pos == "object") pos = clipPos(pos);
+else 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 = lines[pos.line].text.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;
+}
+}
+else {
+var line = lines[pos.line].text.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(lines[pos.line].text), 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(lines[ln].text);
+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 == lines.length - 1) return;
+line = fold(lines[ln += reverse ? -1 : 1].text);
+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 = 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: lines[pos.line-1].text.length};
+}
+else {
+if (pos.line == lines.length - 1) return savePosAndFail(lines.length);
+pos = {line: pos.line+1, ch: 0};
+}
+}
+},
+from: function() {if (this.atOccurrence) return copyPos(this.pos.from);},
+to: function() {if (this.atOccurrence) return copyPos(this.pos.to);}
+};
+return instance;
+} // (end of function CodeMirror)
+// The default configuration options.
+CodeMirror.defaults = {
+value: "",
+mode: null,
+indentUnit: 2,
+indentWithTabs: false,
+tabMode: "classic",
+enterMode: "indent",
+electricChars: true,
+onKeyEvent: null,
+lineNumbers: false,
+gutter: false,
+firstLineNumber: 1,
+readOnly: false,
+onChange: null,
+onCursorActivity: null,
+onGutterClick: null,
+onFocus: null, onBlur: null, onScroll: null,
+matchBrackets: false,
+workTime: 100,
+workDelay: 200,
+undoDepth: 40,
+tabindex: null
+};
+// Known modes, by name and by MIME
+var modes = {}, mimeModes = {};
+CodeMirror.defineMode = function(name, mode) {
+if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
+modes[name] = mode;
+};
+CodeMirror.defineMIME = function(mime, spec) {
+mimeModes[mime] = spec;
+};
+CodeMirror.getMode = function(options, spec) {
+if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
+spec = mimeModes[spec];
+if (typeof spec == "string")
+var mname = spec, config = {};
+else
+var mname = spec.name, config = spec;
+var mfactory = modes[mname];
+if (!mfactory) {
+if (window.console) console.warn("No mode " + mname + " found, falling back to plain text.");
+return CodeMirror.getMode(options, "text/plain");
+}
+return mfactory(options, config);
+}
+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(m);
+return list;
+};
+CodeMirror.fromTextArea = function(textarea, options) {
+if (!options) options = {};
+options.value = textarea.value;
+if (!options.tabindex && textarea.tabindex)
+options.tabindex = textarea.tabindex;
+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.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.startState = startState;
+function startState(mode, a1, a2) {
+return mode.startState ? mode.startState(a1, a2) : true;
+}
+CodeMirror.copyState = copyState;
+// The character stream used by a mode's parser.
+function StringStream(string) {
+this.pos = this.start = 0;
+this.string = string;
+}
+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.start;
+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);},
+indentation: function() {return countColumn(this.string);},
+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);}
+};
+// 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.stateAfter = null;
+this.text = text;
+this.marked = this.gutterMarker = this.className = null;
+}
+Line.prototype = {
+// Replace a piece of a line, keeping the styles around it intact.
+replace: function(from, to, text) {
+var st = [], mk = this.marked;
+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), end = this.text.length;
+function fix(n) {return n <= Math.min(to, to + diff) ? n : n + diff;}
+for (var i = 0; i < mk.length; ++i) {
+var mark = mk[i], del = false;
+if (mark.from >= end) del = true;
+else {mark.from = fix(mark.from); if (mark.to != null) mark.to = fix(mark.to);}
+if (del || mark.from >= mark.to) {mk.splice(i, 1); i--;}
+}
+}
+},
+// Split a line in two, again keeping styles intact.
+split: function(pos, textBefore) {
+var st = [textBefore, null];
+copyStyles(pos, this.text.length, this.styles, st);
+return new Line(textBefore + this.text.slice(pos), st);
+},
+addMark: function(from, to, style) {
+var mk = this.marked, mark = {from: from, to: to, style: style};
+if (this.marked == null) this.marked = [];
+this.marked.push(mark);
+this.marked.sort(function(a, b){return a.from - b.from;});
+return mark;
+},
+removeMark: function(mark) {
+var mk = this.marked;
+if (!mk) return;
+for (var i = 0; i < mk.length; ++i)
+if (mk[i] == mark) {mk.splice(i, 1); break;}
+},
+// 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) {
+var stream = new StringStream(this.text), st = this.styles, pos = 0, changed = false;
+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] != substr || st[pos+1] != style) changed = true;
+st[pos++] = substr; st[pos++] = style;
+}
+// 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;}
+return changed;
+},
+// 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() {return countColumn(this.text);},
+// Produces an HTML fragment for the line, taking selection,
+// marking, and highlighting into account.
+getHTML: function(sfrom, sto, includePre) {
+var html = [];
+if (includePre)
+html.push(this.className ? '<pre class="' + this.className + '">': "<pre>");
+function span(text, style) {
+if (!text) return;
+if (style) html.push('<span class="', style, '">', htmlEscape(text), "</span>");
+else html.push(htmlEscape(text));
+}
+var st = this.styles, allText = this.text, marked = this.marked;
+if (sfrom == sto) sfrom = null;
+if (!allText)
+span(" ", sfrom != null && sto == null ? "CodeMirror-selected" : null);
+else if (!marked && sfrom == null)
+for (var i = 0, e = st.length; i < e; i+=2) span(st[i], st[i+1]);
+else {
+var pos = 0, i = 0, text = "", style, sg = 0;
+var markpos = -1, mark = null;
+function nextMark() {
+if (marked) {
+markpos += 1;
+mark = (markpos < marked.length) ? marked[markpos] : null;
+}
+}
+nextMark();
+while (pos < allText.length) {
+var upto = allText.length;
+var extraStyle = "";
+if (sfrom != null) {
+if (sfrom > pos) upto = sfrom;
+else if (sto == null || sto > pos) {
+extraStyle = " CodeMirror-selected";
+if (sto != null) upto = Math.min(upto, sto);
+}
+}
+while (mark && mark.to != null && mark.to <= pos) nextMark();
+if (mark) {
+if (mark.from > pos) upto = Math.min(upto, mark.from);
+else {
+extraStyle += " " + mark.style;
+if (mark.to != null) upto = Math.min(upto, mark.to);
+}
+}
+for (;;) {
+var end = pos + text.length;
+var apliedStyle = style;
+if (extraStyle) apliedStyle = style ? style + extraStyle : extraStyle;
+span(end > upto ? text.slice(0, upto - pos) : text, apliedStyle);
+if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
+pos = end;
+text = st[i++]; style = st[i++];
+}
+}
+if (sfrom != null && sto == null) span(" ", "CodeMirror-selected");
+}
+if (includePre) html.push("</pre>");
+return html.join("");
+}
+};
+// 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;
+}
+}
+// 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 = [];
+}
+History.prototype = {
+addChange: function(start, added, old) {
+this.undone.length = 0;
+var time = +new Date, last = this.done[this.done.length - 1];
+if (time - this.time > 400 || !last ||
+last.start > start + added || last.start + last.added < start - last.added + last.old.length)
+this.done.push({start: start, added: added, old: old});
+else {
+var oldoff = 0;
+if (start < last.start) {
+for (var i = last.start - start - 1; i >= 0; --i)
+last.old.unshift(old[i]);
+last.added += last.start - start;
+last.start = start;
+}
+else if (last.start < start) {
+oldoff = start - last.start;
+added += oldoff;
+}
+for (var i = last.added - oldoff, e = old.length; i < e; ++i)
+last.old.push(old[i]);
+if (last.added < added) last.added = added;
+}
+this.time = time;
+}
+};
+// Event stopping compatibility wrapper.
+function stopEvent() {
+if (this.preventDefault) {this.preventDefault(); this.stopPropagation();}
+else {this.returnValue = false; this.cancelBubble = true;}
+}
+// Ensure an event has a stop method.
+function addStop(event) {
+if (!event.stop) event.stop = stopEvent;
+return event;
+}
+// Event wrapper, exposing the few operations we need.
+function Event(orig) {this.e = orig;}
+Event.prototype = {
+stop: function() {stopEvent.call(this.e);},
+target: function() {return this.e.target || this.e.srcElement;},
+button: function() {
+if (this.e.which) return this.e.which;
+else if (this.e.button & 1) return 1;
+else if (this.e.button & 2) return 3;
+else if (this.e.button & 4) return 2;
+},
+pageX: function() {
+if (this.e.pageX != null) return this.e.pageX;
+else return this.e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
+},
+pageY: function() {
+if (this.e.pageY != null) return this.e.pageY;
+else return this.e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
+}
+};
+// Event handler registration. If disconnect is true, it'll return a
+// function that unregisters the handler.
+function connect(node, type, handler, disconnect) {
+function wrapHandler(event) {handler(new Event(event || window.event));}
+if (typeof node.addEventListener == "function") {
+node.addEventListener(type, wrapHandler, false);
+if (disconnect) return function() {node.removeEventListener(type, wrapHandler, false);};
+}
+else {
+node.attachEvent("on" + type, wrapHandler);
+if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
+}
+}
+function Delayed() {this.id = null;}
+Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
+// Some IE versions don't preserve whitespace when setting the
+// innerHTML of a PRE tag.
+var badInnerHTML = (function() {
+var pre = document.createElement("pre");
+pre.innerHTML = " "; return !pre.innerHTML;
+})();
+var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
+var lineSep = "\n";
+// Feature-detect whether newlines in textareas are converted to \r\n
+(function () {
+var te = document.createElement("textarea");
+te.value = "foo\nbar";
+if (te.value.indexOf("\r") > -1) lineSep = "\r\n";
+}());
+var tabSize = 8;
+var mac = /Mac/.test(navigator.platform);
+var movementKeys = {};
+for (var i = 35; i <= 40; ++i)
+movementKeys[i] = movementKeys["c" + i] = true;
+// Counts the column offset in a string, taking tabs into account.
+// Used mostly to find indentation.
+function countColumn(string, end) {
+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;
+}
+// Find the position of an element by following the offsetParent chain.
+function eltOffset(node) {
+var x = 0, y = 0, n2 = node;
+for (var n = node; n; n = n.offsetParent) {x += n.offsetLeft; y += n.offsetTop;}
+for (var n = node; n != document.body; n = n.parentNode) {x -= n.scrollLeft; y -= n.scrollTop;}
+return {left: x, top: y};
+}
+// Get a node's text content.
+function eltText(node) {
+return node.textContent || node.innerText || node.nodeValue || "";
+}
+// 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};}
+function htmlEscape(str) {
+return str.replace(/[<&]/g, function(str) {return str == "&" ? "&amp;" : "&lt;";});
+}
+// Used to position the cursor after an undo/redo by finding the
+// last edited character.
+function editEnd(from, to) {
+if (!to) return from ? from.length : 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;
+}
+// See if "".split is the broken IE version, if so, provide an
+// alternative way to split lines.
+if ("\n\nb".split(/\n/).length != 3)
+var splitLines = 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;
+};
+else
+var splitLines = function(string){return string.split(/\r?\n/);};
+// Sane model of finding and setting the selection in a textarea
+if (window.getSelection) {
+var selRange = function(te) {
+try {return {start: te.selectionStart, end: te.selectionEnd};}
+catch(e) {return null;}
+};
+var setSelRange = function(te, start, end) {
+try {te.setSelectionRange(start, end);}
+catch(e) {} // Fails on Firefox when textarea isn't part of the document
+};
+}
+// IE model. Don't ask.
+else {
+var selRange = function(te) {
+try {var range = document.selection.createRange();}
+catch(e) {return null;}
+if (!range || range.parentElement() != te) return null;
+var val = te.value, len = val.length, localRange = te.createTextRange();
+localRange.moveToBookmark(range.getBookmark());
+var endRange = te.createTextRange();
+endRange.collapse(false);
+if (localRange.compareEndPoints("StartToEnd", endRange) > -1)
+return {start: len, end: len};
+var start = -localRange.moveStart("character", -len);
+for (var i = val.indexOf("\r"); i > -1 && i < start; i = val.indexOf("\r", i+1), start++) {}
+if (localRange.compareEndPoints("EndToEnd", endRange) > -1)
+return {start: start, end: len};
+var end = -localRange.moveEnd("character", -len);
+for (var i = val.indexOf("\r"); i > -1 && i < end; i = val.indexOf("\r", i+1), end++) {}
+return {start: start, end: end};
+};
+var setSelRange = function(te, start, end) {
+var range = te.createTextRange();
+range.collapse(true);
+var endrange = range.duplicate();
+var newlines = 0, txt = te.value;
+for (var pos = txt.indexOf("\n"); pos > -1 && pos < start; pos = txt.indexOf("\n", pos + 1))
+++newlines;
+range.move("character", start - newlines);
+for (; pos > -1 && pos < end; pos = txt.indexOf("\n", pos + 1))
+++newlines;
+endrange.move("character", end - newlines);
+range.setEndPoint("EndToEnd", endrange);
+range.select();
+};
+}
+CodeMirror.defineMode("null", function() {
+return {token: function(stream) {stream.skipToEnd();}};
+});
+CodeMirror.defineMIME("text/plain", "null");
+return CodeMirror;
+})();