feature:2262

Replace editarea by Codemirror:
http://codemirror.net

git-svn-id: http://piwigo.org/svn/trunk@10307 68402e56-0260-453c-a942-63ccdbb3a9ee

28 files changed, 4162 insertions, 0 deletions

diff --git a/plugins/LocalFilesEditor/codemirror/lib/codemirror.css b/plugins/LocalFilesEditor/codemirror/lib/codemirror.css
new file mode 100644
index 000000000..578af41ae
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/lib/codemirror.css
@@ -0,0 +1,53 @@
+.CodeMirror {
+  overflow: auto;
+  height: 300px;
+  line-height: 1em;
+  font-family: monospace;
+  _position: relative; /* IE6 hack */
+}
+
+.CodeMirror-gutter {
+  position: absolute; left: 0; top: 0;
+  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;
+}
+.CodeMirror-lines {
+  padding: .4em;
+}
+
+.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;
+}
+
+.CodeMirror-cursor {
+  z-index: 10;
+  position: absolute;
+  visibility: hidden;
+  border-left: 1px solid black !important;
+}
+.CodeMirror-focused .CodeMirror-cursor {
+  visibility: visible;
+}
+
+span.CodeMirror-selected {
+  background: #ccc !important;
+  color: HighlightText !important;
+}
+.CodeMirror-focused span.CodeMirror-selected {
+  background: Highlight !important;
+}
+
+.CodeMirror-matchingbracket {color: #0f0 !important;}
+.CodeMirror-nonmatchingbracket {color: #f22 !important;}
diff --git a/plugins/LocalFilesEditor/codemirror/lib/codemirror.js b/plugins/LocalFilesEditor/codemirror/lib/codemirror.js
new file mode 100644
index 000000000..390e68c1f
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/lib/codemirror.js
@@ -0,0 +1,1915 @@
+// 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;
+})();
diff --git a/plugins/LocalFilesEditor/codemirror/lib/overlay.js b/plugins/LocalFilesEditor/codemirror/lib/overlay.js
new file mode 100644
index 000000000..c4cdf9fc8
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/lib/overlay.js
@@ -0,0 +1,51 @@
+// 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.
+
+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: function(state, textAfter) {
+      return base.indent(state.base, textAfter);
+    },
+    electricChars: base.electricChars
+  };
+};
diff --git a/plugins/LocalFilesEditor/codemirror/mode/clike/clike.css b/plugins/LocalFilesEditor/codemirror/mode/clike/clike.css
new file mode 100644
index 000000000..21016d7b1
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/clike/clike.css
@@ -0,0 +1,6 @@
+span.c-like-keyword {color: #90b;}
+span.c-like-number {color: #291;}
+span.c-like-comment {color: #a70;}
+span.c-like-string {color: #a22;}
+span.c-like-preprocessor {color: #049;}
+span.c-like-var {color: #22b;}
diff --git a/plugins/LocalFilesEditor/codemirror/mode/clike/clike.js b/plugins/LocalFilesEditor/codemirror/mode/clike/clike.js
new file mode 100644
index 000000000..25bd79144
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/clike/clike.js
@@ -0,0 +1,181 @@
+CodeMirror.defineMode("clike", function(config, parserConfig) {
+  var indentUnit = config.indentUnit, keywords = parserConfig.keywords,
+      cpp = parserConfig.useCPP, multiLineStrings = parserConfig.multiLineStrings, $vars = parserConfig.$vars;
+  var isOperatorChar = /[+\-*&%=<>!?|]/;
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  var type;
+  function ret(tp, style) {
+    type = tp;
+    return style;
+  }
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'")
+      return chain(stream, state, tokenString(ch));
+    else if (/[\[\]{}\(\),;\:\.]/.test(ch))
+      return ret(ch);
+    else if (ch == "#" && cpp && state.startOfLine) {
+      stream.skipToEnd();
+      return ret("directive", "c-like-preprocessor");
+    }
+    else if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/)
+      return ret("number", "c-like-number");
+    }
+    else if (ch == "/") {
+      if (stream.eat("*")) {
+        return chain(stream, state, tokenComment);
+      }
+      else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return ret("comment", "c-like-comment");
+      }
+      else {
+        stream.eatWhile(isOperatorChar);
+        return ret("operator");
+      }
+    }
+    else if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return ret("operator");
+    }
+    else if ($vars && ch == "$") {
+      stream.eatWhile(/[\w\$_]/);
+      return ret("word", "c-like-var");
+    }
+    else {
+      stream.eatWhile(/[\w\$_]/);
+      if (keywords && keywords.propertyIsEnumerable(stream.current())) return ret("keyword", "c-like-keyword");
+      return ret("word", "c-like-word");
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {end = true; break;}
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !(escaped || multiLineStrings))
+        state.tokenize = tokenBase;
+      return ret("string", "c-like-string");
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "c-like-comment");
+  }
+
+  function Context(indented, column, type, align, prev) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.align = align;
+    this.prev = prev;
+  }
+
+  function pushContext(state, col, type) {
+    return state.context = new Context(state.indented, col, type, null, state.context);
+  }
+  function popContext(state) {
+    return state.context = state.context.prev;
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: tokenBase,
+        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+        indented: 0,
+        startOfLine: true
+      };
+    },
+
+    token: function(stream, state) {
+      var ctx = state.context;
+      if (stream.sol()) {
+        if (ctx.align == null) ctx.align = false;
+        state.indented = stream.indentation();
+        state.startOfLine = true;
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (type == "comment") return style;
+      if (ctx.align == null) ctx.align = true;
+
+      if ((type == ";" || type == ":") && ctx.type == "statement") popContext(state);
+      else if (type == "{") pushContext(state, stream.column(), "}");
+      else if (type == "[") pushContext(state, stream.column(), "]");
+      else if (type == "(") pushContext(state, stream.column(), ")");
+      else if (type == "}") {
+        if (ctx.type == "statement") ctx = popContext(state);
+        if (ctx.type == "}") ctx = popContext(state);
+        if (ctx.type == "statement") ctx = popContext(state);
+      }
+      else if (type == ctx.type) popContext(state);
+      else if (ctx.type == "}") pushContext(state, stream.column(), "statement");
+      state.startOfLine = false;
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), ctx = state.context, closing = firstChar == ctx.type;
+      if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : indentUnit);
+      else if (ctx.align) return ctx.column + (closing ? 0 : 1);
+      else return ctx.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: "{}"
+  };
+});
+
+(function() {
+  function keywords(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  var cKeywords = "auto if break int case long char register continue return default short do sizeof " +
+    "double static else struct entry switch extern typedef float union for unsigned " +
+    "goto while enum void const signed volatile";
+
+  CodeMirror.defineMIME("text/x-csrc", {
+    name: "clike",
+    useCPP: true,
+    keywords: keywords(cKeywords)
+  });
+  CodeMirror.defineMIME("text/x-c++src", {
+    name: "clike",
+    useCPP: true,
+    keywords: keywords(cKeywords + " asm dynamic_cast namespace reinterpret_cast try bool explicit new " +
+                       "static_cast typeid catch false operator template typename class friend private " +
+                       "this using const_cast inline public throw virtual delete mutable protected true " +
+                       "wchar_t")
+  });
+  CodeMirror.defineMIME("text/x-java", {
+    name: "clike",
+    keywords: keywords("abstract assert boolean break byte case catch char class const continue default " + 
+                       "do double else enum extends false final finally float for goto if implements import " +
+                       "instanceof int interface long native new null package private protected public " +
+                       "return short static strictfp super switch synchronized this throw throws transient " +
+                       "true try void volatile while")
+  });
+}());
diff --git a/plugins/LocalFilesEditor/codemirror/mode/clike/index.html b/plugins/LocalFilesEditor/codemirror/mode/clike/index.html
new file mode 100644
index 000000000..0836535d2
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/clike/index.html
@@ -0,0 +1,101 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: C-like mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="clike.js"></script>
+    <link rel="stylesheet" href="clike.css">
+    <link rel="stylesheet" href="../../css/docs.css">
+    <style>.CodeMirror {border: 2px inset #dee;}</style>
+  </head>
+  <body>
+    <h1>CodeMirror 2: C-like mode</h1>
+
+<form><textarea id="code" name="code">
+/* C demo code */
+
+#include <zmq.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <time.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <malloc.h>
+
+typedef struct {
+  void* arg_socket;
+  zmq_msg_t* arg_msg;
+  char* arg_string;
+  unsigned long arg_len;
+  int arg_int, arg_command;
+
+  int signal_fd;
+  int pad;
+  void* context;
+  sem_t sem;
+} acl_zmq_context;
+
+#define p(X) (context->arg_##X)
+
+void* zmq_thread(void* context_pointer) {
+  acl_zmq_context* context = (acl_zmq_context*)context_pointer;
+  char ok = 'K', err = 'X';
+  int res;
+
+  while (1) {
+    while ((res = sem_wait(&amp;context->sem)) == EINTR);
+    if (res) {write(context->signal_fd, &amp;err, 1); goto cleanup;}
+    switch(p(command)) {
+    case 0: goto cleanup;
+    case 1: p(socket) = zmq_socket(context->context, p(int)); break;
+    case 2: p(int) = zmq_close(p(socket)); break;
+    case 3: p(int) = zmq_bind(p(socket), p(string)); break;
+    case 4: p(int) = zmq_connect(p(socket), p(string)); break;
+    case 5: p(int) = zmq_getsockopt(p(socket), p(int), (void*)p(string), &amp;p(len)); break;
+    case 6: p(int) = zmq_setsockopt(p(socket), p(int), (void*)p(string), p(len)); break;
+    case 7: p(int) = zmq_send(p(socket), p(msg), p(int)); break;
+    case 8: p(int) = zmq_recv(p(socket), p(msg), p(int)); break;
+    case 9: p(int) = zmq_poll(p(socket), p(int), p(len)); break;
+    }
+    p(command) = errno;
+    write(context->signal_fd, &amp;ok, 1);
+  }
+ cleanup:
+  close(context->signal_fd);
+  free(context_pointer);
+  return 0;
+}
+
+void* zmq_thread_init(void* zmq_context, int signal_fd) {
+  acl_zmq_context* context = malloc(sizeof(acl_zmq_context));
+  pthread_t thread;
+
+  context->context = zmq_context;
+  context->signal_fd = signal_fd;
+  sem_init(&amp;context->sem, 1, 0);
+  pthread_create(&amp;thread, 0, &amp;zmq_thread, context);
+  pthread_detach(thread);
+  return context;
+}
+</textarea></form>
+
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+        lineNumbers: true,
+        matchBrackets: true,
+        mode: "text/x-csrc"
+      });
+    </script>
+
+    <p>Simple mode that tries to handle C-like languages as well as it
+    can. Takes two configuration parameters: <code>keywords</code>, an
+    object whose property names are the keywords in the language,
+    and <code>useCPP</code>, which determines whether C preprocessor
+    directives are recognized.</p>
+
+    <p><strong>MIME types defined:</strong> <code>text/x-csrc</code>
+    (C code), <code>text/x-c++src</code> (C++
+    code), <code>text/x-java</code> (Java code).</p>
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/css/css.css b/plugins/LocalFilesEditor/codemirror/mode/css/css.css
new file mode 100644
index 000000000..02d40ecb2
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/css/css.css
@@ -0,0 +1,9 @@
+span.css-at {color: #708;}
+span.css-unit {color: #281;}
+span.css-value {color: #708;}
+span.css-identifier {color: black;}
+span.css-selector {color: #11B;}
+span.css-important {color: #00F;}
+span.css-colorcode {color: #299;}
+span.css-comment {color: #A70;}
+span.css-string {color: #A22;}
diff --git a/plugins/LocalFilesEditor/codemirror/mode/css/css.js b/plugins/LocalFilesEditor/codemirror/mode/css/css.js
new file mode 100644
index 000000000..5faad7b2f
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/css/css.js
@@ -0,0 +1,124 @@
+CodeMirror.defineMode("css", function(config) {
+  var indentUnit = config.indentUnit, type;
+  function ret(style, tp) {type = tp; return style;}
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == "@") {stream.eatWhile(/\w/); return ret("css-at", stream.current());}
+    else if (ch == "/" && stream.eat("*")) {
+      state.tokenize = tokenCComment;
+      return tokenCComment(stream, state);
+    }
+    else if (ch == "<" && stream.eat("!")) {
+      state.tokenize = tokenSGMLComment;
+      return tokenSGMLComment(stream, state);
+    }
+    else if (ch == "=") ret(null, "compare");
+    else if ((ch == "~" || ch == "|") && stream.eat("=")) return ret(null, "compare");
+    else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    else if (ch == "#") {
+      stream.eatWhile(/\w/);
+      return ret("css-selector", "hash");
+    }
+    else if (ch == "!") {
+      stream.match(/^\s*\w*/);
+      return ret("css-important", "important");
+    }
+    else if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w.%]/);
+      return ret("css-unit", "unit");
+    }
+    else if (/[,.+>*\/]/.test(ch)) {
+      return ret(null, "select-op");
+    }
+    else if (/[;{}:\[\]]/.test(ch)) {
+      return ret(null, ch);
+    }
+    else {
+      stream.eatWhile(/[\w\\\-_]/);
+      return ret("css-identifier", "identifier");
+    }
+  }
+
+  function tokenCComment(stream, state) {
+    var maybeEnd = false, ch;
+    while ((ch = stream.next()) != null) {
+      if (maybeEnd && ch == "/") {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("css-comment", "comment");
+  }
+
+  function tokenSGMLComment(stream, state) {
+    var dashes = 0, ch;
+    while ((ch = stream.next()) != null) {
+      if (dashes >= 2 && ch == ">") {
+        state.tokenize = tokenBase;
+        break;
+      }
+      dashes = (ch == "-") ? dashes + 1 : 0;
+    }
+    return ret("css-comment", "comment");
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped)
+          break;
+        escaped = !escaped && ch == "\\";
+      }
+      if (!escaped) state.tokenize = tokenBase;
+      return ret("css-string", "string");
+    };
+  }
+
+  return {
+    startState: function(base) {
+      return {tokenize: tokenBase,
+              baseIndent: base || 0,
+              stack: []};
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+
+      var context = state.stack[state.stack.length-1];
+      if (type == "hash" && context == "rule") style = "css-colorcode";
+      else if (style == "css-identifier") {
+        if (context == "rule") style = "css-value";
+        else if (!context || context == "@media{") style = "css-selector";
+      }
+
+      if (context == "rule" && /^[\{\};]$/.test(type))
+        state.stack.pop();
+      if (type == "{") {
+        if (context == "@media") state.stack[state.stack.length-1] = "@media{";
+        else state.stack.push("{");
+      }
+      else if (type == "}") state.stack.pop();
+      else if (type == "@media") state.stack.push("@media");
+      else if (context != "rule" && context != "@media" && type != "comment") state.stack.push("rule");
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var n = state.stack.length;
+      if (/^\}/.test(textAfter))
+        n -= state.stack[state.stack.length-1] == "rule" ? 2 : 1;
+      return state.baseIndent + n * indentUnit;
+    },
+
+    electricChars: "}"
+  };
+});
+
+CodeMirror.defineMIME("text/css", "css");
diff --git a/plugins/LocalFilesEditor/codemirror/mode/css/index.html b/plugins/LocalFilesEditor/codemirror/mode/css/index.html
new file mode 100644
index 000000000..ad895610f
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/css/index.html
@@ -0,0 +1,56 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: CSS mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="css.js"></script>
+    <link rel="stylesheet" href="css.css">
+    <style>.CodeMirror {background: #f8f8f8;}</style>
+    <link rel="stylesheet" href="../../css/docs.css">
+  </head>
+  <body>
+    <h1>CodeMirror 2: CSS mode</h1>
+    <form><textarea id="code" name="code">
+/* Some example CSS */
+
+@import url("something.css");
+
+body {
+  margin: 0;
+  padding: 3em 6em;
+  font-family: tahoma, arial, sans-serif;
+  color: #000;
+}
+
+#navigation a {
+  font-weight: bold;
+  text-decoration: none !important;
+}
+
+h1 {
+  font-size: 2.5em;
+}
+
+h2 {
+  font-size: 1.7em;
+}
+
+h1:before, h2:before {
+  content: "::";
+}
+
+code {
+  font-family: courier, monospace;
+  font-size: 80%;
+  color: #418A8A;
+}
+</textarea></form>
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {});
+    </script>
+
+    <p><strong>MIME types defined:</strong> <code>text/css</code>.</p>
+
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/diff/diff.css b/plugins/LocalFilesEditor/codemirror/mode/diff/diff.css
new file mode 100644
index 000000000..60c1379ed
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/diff/diff.css
@@ -0,0 +1,3 @@
+span.diff-rangeinfo {color: #a0b;}
+span.diff-minus {color: #a22;}
+span.diff-plus {color: #2b2;}
diff --git a/plugins/LocalFilesEditor/codemirror/mode/diff/diff.js b/plugins/LocalFilesEditor/codemirror/mode/diff/diff.js
new file mode 100644
index 000000000..619d74e2a
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/diff/diff.js
@@ -0,0 +1,13 @@
+CodeMirror.defineMode("diff", function() {
+  return {
+    token: function(stream) {
+      var ch = stream.next();
+      stream.skipToEnd();
+      if (ch == "+") return "diff-plus";
+      if (ch == "-") return "diff-minus";
+      if (ch == "@") return "diff-rangeinfo";
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-diff", "diff");
diff --git a/plugins/LocalFilesEditor/codemirror/mode/diff/index.html b/plugins/LocalFilesEditor/codemirror/mode/diff/index.html
new file mode 100644
index 000000000..2748f2fa8
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/diff/index.html
@@ -0,0 +1,99 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: Diff mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="diff.js"></script>
+    <link rel="stylesheet" href="diff.css">
+    <style>.CodeMirror {border-top: 1px solid #ddd; border-bottom: 1px solid #ddd;}</style>
+    <link rel="stylesheet" href="../../css/docs.css">
+  </head>
+  <body>
+    <h1>CodeMirror 2: Diff mode</h1>
+    <form><textarea id="code" name="code">
+diff --git a/index.html b/index.html
+index c1d9156..7764744 100644
+--- a/index.html
++++ b/index.html
+@@ -95,7 +95,8 @@ StringStream.prototype = {
+     <script>
+       var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+         lineNumbers: true,
+-        autoMatchBrackets: true
++        autoMatchBrackets: true,
++      onGutterClick: function(x){console.log(x);}
+       });
+     </script>
+   </body>
+diff --git a/lib/codemirror.js b/lib/codemirror.js
+index 04646a9..9a39cc7 100644
+--- a/lib/codemirror.js
++++ b/lib/codemirror.js
+@@ -399,10 +399,16 @@ var CodeMirror = (function() {
+     }
+ 
+     function onMouseDown(e) {
+-      var start = posFromMouse(e), last = start;
++      var start = posFromMouse(e), last = start, target = e.target();
+       if (!start) return;
+       setCursor(start.line, start.ch, false);
+       if (e.button() != 1) return;
++      if (target.parentNode == gutter) {
++        if (options.onGutterClick)
++          options.onGutterClick(indexOf(gutter.childNodes, target) + showingFrom);
++        return;
++      }
++
+       if (!focused) onFocus();
+ 
+       e.stop();
+@@ -808,7 +814,7 @@ var CodeMirror = (function() {
+       for (var i = showingFrom; i < showingTo; ++i) {
+         var marker = lines[i].gutterMarker;
+         if (marker) html.push('<div class="' + marker.style + '">' + htmlEscape(marker.text) + '</div>');
+-        else html.push("<div>" + (options.lineNumbers ? i + 1 : "\u00a0") + "</div>");
++        else html.push("<div>" + (options.lineNumbers ? i + options.firstLineNumber : "\u00a0") + "</div>");
+       }
+       gutter.style.display = "none"; // TODO test whether this actually helps
+       gutter.innerHTML = html.join("");
+@@ -1371,10 +1377,8 @@ var CodeMirror = (function() {
+         if (option == "parser") setParser(value);
+         else if (option === "lineNumbers") setLineNumbers(value);
+         else if (option === "gutter") setGutter(value);
+-        else if (option === "readOnly") options.readOnly = value;
+-        else if (option === "indentUnit") {options.indentUnit = indentUnit = value; setParser(options.parser);}
+-        else if (/^(?:enterMode|tabMode|indentWithTabs|readOnly|autoMatchBrackets|undoDepth)$/.test(option)) options[option] = value;
+-        else throw new Error("Can't set option " + option);
++        else if (option === "indentUnit") {options.indentUnit = value; setParser(options.parser);}
++        else options[option] = value;
+       },
+       cursorCoords: cursorCoords,
+       undo: operation(undo),
+@@ -1402,7 +1406,8 @@ var CodeMirror = (function() {
+       replaceRange: operation(replaceRange),
+ 
+       operation: function(f){return operation(f)();},
+-      refresh: function(){updateDisplay([{from: 0, to: lines.length}]);}
++      refresh: function(){updateDisplay([{from: 0, to: lines.length}]);},
++      getInputField: function(){return input;}
+     };
+     return instance;
+   }
+@@ -1420,6 +1425,7 @@ var CodeMirror = (function() {
+     readOnly: false,
+     onChange: null,
+     onCursorActivity: null,
++    onGutterClick: null,
+     autoMatchBrackets: false,
+     workTime: 200,
+     workDelay: 300,
+</textarea></form>
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {});
+    </script>
+
+    <p><strong>MIME types defined:</strong> <code>text/x-diff</code>.</p>
+
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/haskell/haskell.css b/plugins/LocalFilesEditor/codemirror/mode/haskell/haskell.css
new file mode 100644
index 000000000..41f915556
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/haskell/haskell.css
@@ -0,0 +1,25 @@
+span.hs-char,
+span.hs-float,
+span.hs-integer,
+span.hs-string 	{color: #762;}
+
+span.hs-comment {color: #262;font-style: italic;}
+span.hs-pragma {color: #555;font-style: italic;}
+
+span.hs-special,
+span.hs-varid,
+span.hs-varsym {color: #000;}
+
+span.hs-conid,
+span.hs-consym {color: #b11;}
+
+span.hs-qualifier {color: #555;}
+
+span.hs-reservedid,
+span.hs-reservedop {color: #730;}
+
+span.hs-prelude-varid,
+span.hs-prelude-varsym {color: #30a;}
+span.hs-prelude-conid {color: #b11;}
+
+span.hs-error {background-color: #fdd;}
diff --git a/plugins/LocalFilesEditor/codemirror/mode/haskell/haskell.js b/plugins/LocalFilesEditor/codemirror/mode/haskell/haskell.js
new file mode 100644
index 000000000..107885c20
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/haskell/haskell.js
@@ -0,0 +1,242 @@
+CodeMirror.defineMode("haskell", function(cmCfg, modeCfg) {
+
+  function switchState(source, setState, f) {
+    setState(f);
+    return f(source, setState);
+  }
+  
+  // These should all be Unicode extended, as per the Haskell 2010 report
+  var smallRE = /[a-z_]/;
+  var largeRE = /[A-Z]/;
+  var digitRE = /[0-9]/;
+  var hexitRE = /[0-9A-Fa-f]/;
+  var octitRE = /[0-7]/;
+  var idRE = /[a-z_A-Z0-9']/;
+  var symbolRE = /[-!#$%&*+.\/<=>?@\\^|~:]/;
+  var specialRE = /[(),;[\]`{}]/;
+  var whiteCharRE = /[ \t\v\f]/; // newlines are handled in tokenizer
+    
+  function normal(source, setState) {
+    if (source.eatWhile(whiteCharRE)) {
+      return null;
+    }
+      
+    var ch = source.next();
+    if (specialRE.test(ch)) {
+      if (ch == '{' && source.eat('-')) {
+        var t = "hs-comment";
+        if (source.eat('#')) {
+          t = "hs-pragma";
+        }
+        return switchState(source, setState, ncomment(t, 1));
+      }
+      return "hs-special";
+    }
+    
+    if (ch == '\'') {
+      if (source.eat('\\')) {
+        source.next();  // should handle other escapes here
+      }
+      else {
+        source.next();
+      }
+      if (source.eat('\'')) {
+        return "hs-char";
+      }
+      return "hs-error";
+    }
+    
+    if (ch == '"') {
+      return switchState(source, setState, stringLiteral);
+    }
+      
+    if (largeRE.test(ch)) {
+      source.eatWhile(idRE);
+      if (source.eat('.')) {
+        return "hs-qualifier";
+      }
+      return "hs-conid";
+    }
+      
+    if (smallRE.test(ch)) {
+      source.eatWhile(idRE);
+      return "hs-varid";
+    }
+      
+    if (digitRE.test(ch)) {
+      if (ch == '0') {
+        if (source.eat(/[xX]/)) {
+          source.eatWhile(hexitRE); // should require at least 1
+          return "hs-integer";
+        }
+        if (source.eat(/[oO]/)) {
+          source.eatWhile(octitRE); // should require at least 1
+          return "hs-integer";
+        }
+      }
+      source.eatWhile(digitRE);
+      var t = "hs-integer";
+      if (source.eat('.')) {
+        t = "hs-float";
+        source.eatWhile(digitRE); // should require at least 1
+      }
+      if (source.eat(/[eE]/)) {
+        t = "hs-float";
+        source.eat(/[-+]/);
+        source.eatWhile(digitRE); // should require at least 1
+      }
+      return t;
+    }
+      
+    if (symbolRE.test(ch)) {
+      if (ch == '-' && source.eat(/-/)) {
+        source.eatWhile(/-/);
+        if (!source.eat(symbolRE)) {
+          source.skipToEnd();
+          return "hs-comment";
+        }
+      }
+      var t = "hs-varsym";
+      if (ch == ':') {
+        t = "hs-consym";
+      }
+      source.eatWhile(symbolRE);
+      return t;    
+    }
+      
+    return "hs-error";
+  }
+    
+  function ncomment(type, nest) {
+    if (nest == 0) {
+      return normal;
+    }
+    return function(source, setState) {
+      var currNest = nest;
+      while (!source.eol()) {
+        ch = source.next();
+        if (ch == '{' && source.eat('-')) {
+          ++currNest;
+        }
+        else if (ch == '-' && source.eat('}')) {
+          --currNest;
+          if (currNest == 0) {
+            setState(normal);
+            return type;
+          }
+        }
+      }
+      setState(ncomment(type, currNest));
+      return type;
+    }
+  }
+    
+  function stringLiteral(source, setState) {
+    while (!source.eol()) {
+      var ch = source.next();
+      if (ch == '"') {
+        setState(normal);
+        return "hs-string";
+      }
+      if (ch == '\\') {
+        if (source.eol() || source.eat(whiteCharRE)) {
+          setState(stringGap);
+          return "hs-string";
+        }
+        if (source.eat('&')) {
+        }
+        else {
+          source.next(); // should handle other escapes here
+        }
+      }
+    }
+    setState(normal);
+    return "hs-error";
+  }
+  
+  function stringGap(source, setState) {
+    if (source.eat('\\')) {
+      return switchState(source, setState, stringLiteral);
+    }
+    source.next();
+    setState(normal);
+    return "hs-error";
+  }
+  
+  
+  var wellKnownWords = (function() {
+    var wkw = {};
+    function setType(t) {
+      return function () {
+        for (var i = 0; i < arguments.length; i++)
+          wkw[arguments[i]] = t;
+      }
+    }
+    
+    setType("hs-reservedid")(
+      "case", "class", "data", "default", "deriving", "do", "else", "foreign",
+      "if", "import", "in", "infix", "infixl", "infixr", "instance", "let",
+      "module", "newtype", "of", "then", "type", "where", "_");
+      
+    setType("hs-reservedop")(
+      "\.\.", ":", "::", "=", "\\", "\"", "<-", "->", "@", "~", "=>");
+      
+    setType("hs-prelude-varsym")(
+      "!!", "$!", "$", "&&", "+", "++", "-", ".", "/", "/=", "<", "<=", "=<<",
+      "==", ">", ">=", ">>", ">>=", "^", "^^", "||", "*", "**");
+      
+    setType("hs-prelude-conid")(
+      "Bool", "Bounded", "Char", "Double", "EQ", "Either", "Enum", "Eq",
+      "False", "FilePath", "Float", "Floating", "Fractional", "Functor", "GT",
+      "IO", "IOError", "Int", "Integer", "Integral", "Just", "LT", "Left",
+      "Maybe", "Monad", "Nothing", "Num", "Ord", "Ordering", "Rational", "Read",
+      "ReadS", "Real", "RealFloat", "RealFrac", "Right", "Show", "ShowS",
+      "String", "True");
+      
+    setType("hs-prelude-varid")(
+      "abs", "acos", "acosh", "all", "and", "any", "appendFile", "asTypeOf",
+      "asin", "asinh", "atan", "atan2", "atanh", "break", "catch", "ceiling",
+      "compare", "concat", "concatMap", "const", "cos", "cosh", "curry",
+      "cycle", "decodeFloat", "div", "divMod", "drop", "dropWhile", "either",
+      "elem", "encodeFloat", "enumFrom", "enumFromThen", "enumFromThenTo",
+      "enumFromTo", "error", "even", "exp", "exponent", "fail", "filter",
+      "flip", "floatDigits", "floatRadix", "floatRange", "floor", "fmap",
+      "foldl", "foldl1", "foldr", "foldr1", "fromEnum", "fromInteger",
+      "fromIntegral", "fromRational", "fst", "gcd", "getChar", "getContents",
+      "getLine", "head", "id", "init", "interact", "ioError", "isDenormalized",
+      "isIEEE", "isInfinite", "isNaN", "isNegativeZero", "iterate", "last",
+      "lcm", "length", "lex", "lines", "log", "logBase", "lookup", "map",
+      "mapM", "mapM_", "max", "maxBound", "maximum", "maybe", "min", "minBound",
+      "minimum", "mod", "negate", "not", "notElem", "null", "odd", "or",
+      "otherwise", "pi", "pred", "print", "product", "properFraction",
+      "putChar", "putStr", "putStrLn", "quot", "quotRem", "read", "readFile",
+      "readIO", "readList", "readLn", "readParen", "reads", "readsPrec",
+      "realToFrac", "recip", "rem", "repeat", "replicate", "return", "reverse",
+      "round", "scaleFloat", "scanl", "scanl1", "scanr", "scanr1", "seq",
+      "sequence", "sequence_", "show", "showChar", "showList", "showParen",
+      "showString", "shows", "showsPrec", "significand", "signum", "sin",
+      "sinh", "snd", "span", "splitAt", "sqrt", "subtract", "succ", "sum",
+      "tail", "take", "takeWhile", "tan", "tanh", "toEnum", "toInteger",
+      "toRational", "truncate", "uncurry", "undefined", "unlines", "until",
+      "unwords", "unzip", "unzip3", "userError", "words", "writeFile", "zip",
+      "zip3", "zipWith", "zipWith3");
+      
+    return wkw;
+  })();
+    
+  
+  
+  return {
+    startState: function ()  { return { f: normal }; },
+    copyState:  function (s) { return { f: s.f }; },
+    
+    token: function(stream, state) {
+      var t = state.f(stream, function(s) { state.f = s; });
+      var w = stream.current();
+      return (w in wellKnownWords) ? wellKnownWords[w] : t;
+    }
+  };
+
+});
+
+CodeMirror.defineMIME("text/x-haskell", "haskell");
diff --git a/plugins/LocalFilesEditor/codemirror/mode/haskell/index.html b/plugins/LocalFilesEditor/codemirror/mode/haskell/index.html
new file mode 100644
index 000000000..0bf34d570
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/haskell/index.html
@@ -0,0 +1,59 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: Haskell mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="haskell.js"></script>
+    <link rel="stylesheet" href="haskell.css">
+    <style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
+    <link rel="stylesheet" href="../../css/docs.css">
+  </head>
+  <body>
+    <h1>CodeMirror 2: Haskell mode</h1>
+
+<form><textarea id="code" name="code">
+module UniquePerms (
+    uniquePerms
+    )
+where
+
+-- | Find all unique permutations of a list where there might be duplicates.
+uniquePerms :: (Eq a) => [a] -> [[a]]
+uniquePerms = permBag . makeBag
+
+-- | An unordered collection where duplicate values are allowed,
+-- but represented with a single value and a count.
+type Bag a = [(a, Int)]
+
+makeBag :: (Eq a) => [a] -> Bag a
+makeBag [] = []
+makeBag (a:as) = mix a $ makeBag as
+  where
+    mix a []                        = [(a,1)]
+    mix a (bn@(b,n):bs) | a == b    = (b,n+1):bs
+                        | otherwise = bn : mix a bs
+
+permBag :: Bag a -> [[a]]
+permBag [] = [[]]
+permBag bs = concatMap (\(f,cs) -> map (f:) $ permBag cs) . oneOfEach $ bs
+  where
+    oneOfEach [] = []
+    oneOfEach (an@(a,n):bs) =
+        let bs' = if n == 1 then bs else (a,n-1):bs
+        in (a,bs') : mapSnd (an:) (oneOfEach bs)
+    
+    apSnd f (a,b) = (a, f b)
+    mapSnd = map . apSnd
+</textarea></form>
+
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+        lineNumbers: true,
+        matchBrackets: true
+      });
+    </script>
+
+    <p><strong>MIME types defined:</strong> <code>text/x-haskell</code>.</p>
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/htmlmixed/htmlmixed.js b/plugins/LocalFilesEditor/codemirror/mode/htmlmixed/htmlmixed.js
new file mode 100644
index 000000000..8d7165201
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/htmlmixed/htmlmixed.js
@@ -0,0 +1,66 @@
+CodeMirror.defineMode("htmlmixed", function(config, parserConfig) {
+  var htmlMode = CodeMirror.getMode(config, {name: "xml", htmlMode: true});
+  var jsMode = CodeMirror.getMode(config, "javascript");
+  var cssMode = CodeMirror.getMode(config, "css");
+
+  function html(stream, state) {
+    var style = htmlMode.token(stream, state.htmlState);
+    if (style == "xml-tag" && stream.current() == ">" && state.htmlState.context) {
+      if (/^script$/i.test(state.htmlState.context.tagName)) {
+        state.token = javascript;
+        state.localState = jsMode.startState(htmlMode.indent(state.htmlState, ""));
+      }
+      else if (/^style$/i.test(state.htmlState.context.tagName)) {
+        state.token = css;
+        state.localState = cssMode.startState(htmlMode.indent(state.htmlState, ""));
+      }
+    }
+    return style;
+  }
+  function javascript(stream, state) {
+    if (stream.match(/^<\/\s*script\s*>/i, false)) {
+      state.token = html;
+      state.curState = null;
+      return html(stream, state);
+    }
+    return jsMode.token(stream, state.localState);
+  }
+  function css(stream, state) {
+    if (stream.match(/^<\/\s*style\s*>/i, false)) {
+      state.token = html;
+      state.localState = null;
+      return html(stream, state);
+    }
+    return cssMode.token(stream, state.localState);
+  }
+
+  return {
+    startState: function() {
+      var state = htmlMode.startState();
+      return {token: html, localState: null, htmlState: state};
+    },
+
+    copyState: function(state) {
+      if (state.localState)
+        var local = CodeMirror.copyState(state.token == css ? cssMode : jsMode, state.localState);
+      return {token: state.token, localState: local, htmlState: CodeMirror.copyState(htmlMode, state.htmlState)};
+    },
+
+    token: function(stream, state) {
+      return state.token(stream, state);
+    },
+
+    indent: function(state, textAfter) {
+      if (state.token == html || /^\s*<\//.test(textAfter))
+        return htmlMode.indent(state.htmlState, textAfter);
+      else if (state.token == javascript)
+        return jsMode.indent(state.localState, textAfter);
+      else
+        return cssMode.indent(state.localState, textAfter);
+    },
+
+    electricChars: "/{}:"
+  }
+});
+
+CodeMirror.defineMIME("text/html", "htmlmixed");
diff --git a/plugins/LocalFilesEditor/codemirror/mode/htmlmixed/index.html b/plugins/LocalFilesEditor/codemirror/mode/htmlmixed/index.html
new file mode 100644
index 000000000..c661c98d5
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/htmlmixed/index.html
@@ -0,0 +1,54 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: HTML mixed mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="../xml/xml.js"></script>
+    <link rel="stylesheet" href="../xml/xml.css">
+    <script src="../javascript/javascript.js"></script>
+    <link rel="stylesheet" href="../javascript/javascript.css">
+    <script src="../css/css.js"></script>
+    <link rel="stylesheet" href="../css/css.css">
+    <script src="htmlmixed.js"></script>
+    <link rel="stylesheet" href="../../css/docs.css">
+    <style>.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
+  </head>
+  <body>
+    <h1>CodeMirror 2: HTML mixed mode</h1>
+    <form><textarea id="code" name="code">
+<html style="color: green">
+  <!-- this is a comment -->
+  <head>
+    <title>Mixed HTML Example</title>
+    <style type="text/css">
+      h1 {font-family: comic sans; color: #f0f;}
+      div {background: yellow !important;}
+      body {
+        max-width: 50em;
+        margin: 1em 2em 1em 5em;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>Mixed HTML Example</h1>
+    <script>
+      function jsFunc(arg1, arg2) {
+        if (arg1 && arg2) document.body.innerHTML = "achoo";
+      }
+    </script>
+  </body>
+</html>
+</textarea></form>
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {mode: "text/html", tabMode: "indent"});
+    </script>
+
+    <p>The HTML mixed mode depends on the XML, JavaScript, and CSS modes.</p>
+
+    <p><strong>MIME types defined:</strong> <code>text/html</code>
+    (redefined, only takes effect if you load this parser after the
+    XML parser).</p>
+
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/javascript/index.html b/plugins/LocalFilesEditor/codemirror/mode/javascript/index.html
new file mode 100644
index 000000000..7b528e041
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/javascript/index.html
@@ -0,0 +1,78 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: JavaScript mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="javascript.js"></script>
+    <link rel="stylesheet" href="javascript.css">
+    <link rel="stylesheet" href="../../css/docs.css">
+    <style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
+  </head>
+  <body>
+    <h1>CodeMirror 2: JavaScript mode</h1>
+
+<div><textarea id="code" name="code">
+// Demo code (the actual new parser character stream implementation)
+
+function StringStream(string) {
+  this.pos = 0;
+  this.string = string;
+}
+
+StringStream.prototype = {
+  done: function() {return this.pos >= this.string.length;},
+  peek: function() {return this.string.charAt(this.pos);},
+  next: function() {
+    if (this.pos &lt; 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 &amp;&amp; match.test ? match.test(ch) : match(ch);
+    if (ok) {this.pos++; return ch;}
+  },
+  eatWhile: function(match) {
+    var start = this.pos;
+    while (this.eat(match));
+    if (this.pos > start) return this.string.slice(start, this.pos);
+  },
+  backUp: function(n) {this.pos -= n;},
+  column: function() {return this.pos;},
+  eatSpace: function() {
+    var start = this.pos;
+    while (/\s/.test(this.string.charAt(this.pos))) this.pos++;
+    return this.pos - start;
+  },
+  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 += str.length;
+        return true;
+      }
+    }
+    else {
+      var match = this.string.slice(this.pos).match(pattern);
+      if (match &amp;&amp; consume !== false) this.pos += match[0].length;
+      return match;
+    }
+  }
+};
+</textarea></div>
+
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+        lineNumbers: true,
+        matchBrackets: true
+      });
+    </script>
+
+    <p>JavaScript mode supports a single configuration
+    option, <code>json</code>, which will set the mode to expect JSON
+    data rather than a JavaScript program.</p>
+
+    <p><strong>MIME types defined:</strong> <code>text/javascript</code>, <code>application/json</code>.</p>
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.css b/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.css
new file mode 100644
index 000000000..84fb1dfd4
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.css
@@ -0,0 +1,6 @@
+span.js-keyword {color: #90b;}
+span.js-atom {color: #291;}
+span.js-variabledef {color: #00f;}
+span.js-localvariable {color: #049;}
+span.js-comment {color: #a70;}
+span.js-string {color: #a22;}
diff --git a/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js b/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js
new file mode 100644
index 000000000..065216591
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js
@@ -0,0 +1,348 @@
+CodeMirror.defineMode("javascript", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+  var jsonMode = parserConfig.json;
+
+  // Tokenizer
+
+  var keywords = function(){
+    function kw(type) {return {type: type, style: "js-keyword"};}
+    var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
+    var operator = kw("operator"), atom = {type: "atom", style: "js-atom"};
+    return {
+      "if": A, "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
+      "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C,
+      "var": kw("var"), "function": kw("function"), "catch": kw("catch"),
+      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
+      "in": operator, "typeof": operator, "instanceof": operator,
+      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom
+    };
+  }();
+
+  var isOperatorChar = /[+\-*&%=<>!?|]/;
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  function nextUntilUnescaped(stream, end) {
+    var escaped = false, next;
+    while ((next = stream.next()) != null) {
+      if (next == end && !escaped)
+        return false;
+      escaped = !escaped && next == "\\";
+    }
+    return escaped;
+  }
+
+  // Used as scratch variables to communicate multiple values without
+  // consing up tons of objects.
+  var type, content;
+  function ret(tp, style, cont) {
+    type = tp; content = cont;
+    return style;
+  }
+
+  function jsTokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'")
+      return chain(stream, state, jsTokenString(ch));
+    else if (/[\[\]{}\(\),;\:\.]/.test(ch))
+      return ret(ch);
+    else if (ch == "0" && stream.eat(/x/i)) {
+      stream.eatWhile(/[\da-f]/i);
+      return ret("number", "js-atom");
+    }      
+    else if (/\d/.test(ch)) {
+      stream.match(/^\d*(?:\.\d*)?(?:e[+\-]?\d+)?/);
+      return ret("number", "js-atom");
+    }
+    else if (ch == "/") {
+      if (stream.eat("*")) {
+        return chain(stream, state, jsTokenComment);
+      }
+      else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return ret("comment", "js-comment");
+      }
+      else if (state.reAllowed) {
+        nextUntilUnescaped(stream, "/");
+        stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla
+        return ret("regexp", "js-string");
+      }
+      else {
+        stream.eatWhile(isOperatorChar);
+        return ret("operator", null, stream.current());
+      }
+    }
+    else if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return ret("operator", null, stream.current());
+    }
+    else {
+      stream.eatWhile(/[\w\$_]/);
+      var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
+      return known ? ret(known.type, known.style, word) :
+                     ret("variable", "js-variable", word);
+    }
+  }
+
+  function jsTokenString(quote) {
+    return function(stream, state) {
+      if (!nextUntilUnescaped(stream, quote))
+        state.tokenize = jsTokenBase;
+      return ret("string", "js-string");
+    };
+  }
+
+  function jsTokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = jsTokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "js-comment");
+  }
+
+  // Parser
+
+  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true};
+
+  function JSLexical(indented, column, type, align, prev, info) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.prev = prev;
+    this.info = info;
+    if (align != null) this.align = align;
+  }
+
+  function inScope(state, varname) {
+    for (var v = state.localVars; v; v = v.next)
+      if (v.name == varname) return true;
+  }
+
+  function parseJS(state, style, type, content, stream) {
+    var cc = state.cc;
+    // Communicate our context to the combinators.
+    // (Less wasteful than consing up a hundred closures on every call.)
+    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;
+  
+    if (!state.lexical.hasOwnProperty("align"))
+      state.lexical.align = true;
+
+    while(true) {
+      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
+      if (combinator(type, content)) {
+        while(cc.length && cc[cc.length - 1].lex)
+          cc.pop()();
+        if (cx.marked) return cx.marked;
+        if (type == "variable" && inScope(state, content)) return "js-localvariable";
+        return style;
+      }
+    }
+  }
+
+  // Combinator utils
+
+  var cx = {state: null, column: null, marked: null, cc: null};
+  function pass() {
+    for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
+  }
+  function cont() {
+    pass.apply(null, arguments);
+    return true;
+  }
+  function register(varname) {
+    var state = cx.state;
+    if (state.context) {
+      cx.marked = "js-variabledef";
+      for (var v = state.localVars; v; v = v.next)
+        if (v.name == varname) return;
+      state.localVars = {name: varname, next: state.localVars};
+    }
+  }
+
+  // Combinators
+
+  var defaultVars = {name: "this", next: {name: "arguments"}};
+  function pushcontext() {
+    if (!cx.state.context) cx.state.localVars = defaultVars;
+    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
+  }
+  function popcontext() {
+    cx.state.localVars = cx.state.context.vars;
+    cx.state.context = cx.state.context.prev;
+  }
+  function pushlex(type, info) {
+    var result = function() {
+      var state = cx.state;
+      state.lexical = new JSLexical(state.indented, cx.stream.column(), type, null, state.lexical, info)
+    };
+    result.lex = true;
+    return result;
+  }
+  function poplex() {
+    var state = cx.state;
+    if (state.lexical.prev) {
+      if (state.lexical.type == ")")
+        state.indented = state.lexical.indented;
+      state.lexical = state.lexical.prev;
+    }
+  }
+  poplex.lex = true;
+
+  function expect(wanted) {
+    return function expecting(type) {
+      if (type == wanted) return cont();
+      else if (wanted == ";") return pass();
+      else return cont(arguments.callee);
+    };
+  }
+
+  function statement(type) {
+    if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex);
+    if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
+    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
+    if (type == "{") return cont(pushlex("}"), block, poplex);
+    if (type == ";") return cont();
+    if (type == "function") return cont(functiondef);
+    if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"),
+                                      poplex, statement, poplex);
+    if (type == "variable") return cont(pushlex("stat"), maybelabel);
+    if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
+                                         block, poplex, poplex);
+    if (type == "case") return cont(expression, expect(":"));
+    if (type == "default") return cont(expect(":"));
+    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
+                                        statement, poplex, popcontext);
+    return pass(pushlex("stat"), expression, expect(";"), poplex);
+  }
+  function expression(type) {
+    if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator);
+    if (type == "function") return cont(functiondef);
+    if (type == "keyword c") return cont(expression);
+    if (type == "(") return cont(pushlex(")"), expression, expect(")"), poplex, maybeoperator);
+    if (type == "operator") return cont(expression);
+    if (type == "[") return cont(pushlex("]"), commasep(expression, "]"), poplex, maybeoperator);
+    if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator);
+    return cont();
+  }
+  function maybeoperator(type, value) {
+    if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator);
+    if (type == "operator") return cont(expression);
+    if (type == ";") return;
+    if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator);
+    if (type == ".") return cont(property, maybeoperator);
+    if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator);
+  }
+  function maybelabel(type) {
+    if (type == ":") return cont(poplex, statement);
+    return pass(maybeoperator, expect(";"), poplex);
+  }
+  function property(type) {
+    if (type == "variable") {cx.marked = "js-property"; return cont();}
+  }
+  function objprop(type) {
+    if (type == "variable") cx.marked = "js-property";
+    if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression);
+  }
+  function commasep(what, end) {
+    function proceed(type) {
+      if (type == ",") return cont(what, proceed);
+      if (type == end) return cont();
+      return cont(expect(end));
+    }
+    return function commaSeparated(type) {
+      if (type == end) return cont();
+      else return pass(what, proceed);
+    };
+  }
+  function block(type) {
+    if (type == "}") return cont();
+    return pass(statement, block);
+  }
+  function vardef1(type, value) {
+    if (type == "variable"){register(value); return cont(vardef2);}
+    return cont();
+  }
+  function vardef2(type, value) {
+    if (value == "=") return cont(expression, vardef2);
+    if (type == ",") return cont(vardef1);
+  }
+  function forspec1(type) {
+    if (type == "var") return cont(vardef1, forspec2);
+    if (type == ";") return pass(forspec2);
+    if (type == "variable") return cont(formaybein);
+    return pass(forspec2);
+  }
+  function formaybein(type, value) {
+    if (value == "in") return cont(expression);
+    return cont(maybeoperator, forspec2);
+  }
+  function forspec2(type, value) {
+    if (type == ";") return cont(forspec3);
+    if (value == "in") return cont(expression);
+    return cont(expression, expect(";"), forspec3);
+  }
+  function forspec3(type) {
+    if (type != ")") cont(expression);
+  }
+  function functiondef(type, value) {
+    if (type == "variable") {register(value); return cont(functiondef);}
+    if (type == "(") return cont(pushlex(")"), pushcontext, commasep(funarg, ")"), poplex, statement, popcontext);
+  }
+  function funarg(type, value) {
+    if (type == "variable") {register(value); return cont();}
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: jsTokenBase,
+        reAllowed: true,
+        cc: [],
+        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+        localVars: null,
+        context: null,
+        indented: 0
+      };
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (!state.lexical.hasOwnProperty("align"))
+          state.lexical.align = false;
+        state.indented = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (type == "comment") return style;
+      state.reAllowed = type == "operator" || type == "keyword c" || type.match(/^[\[{}\(,;:]$/);
+      return parseJS(state, style, type, content, stream);
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != jsTokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical,
+          type = lexical.type, closing = firstChar == type;
+      if (type == "vardef") return lexical.indented + 4;
+      else if (type == "form" && firstChar == "{") return lexical.indented;
+      else if (type == "stat" || type == "form") return lexical.indented + indentUnit;
+      else if (lexical.info == "switch" && !closing)
+        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
+      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
+      else return lexical.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: ":{}"
+  };
+});
+
+CodeMirror.defineMIME("text/javascript", "javascript");
+CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
diff --git a/plugins/LocalFilesEditor/codemirror/mode/php/index.html b/plugins/LocalFilesEditor/codemirror/mode/php/index.html
new file mode 100644
index 000000000..020e24898
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/php/index.html
@@ -0,0 +1,52 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: PHP mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="../xml/xml.js"></script>
+    <link rel="stylesheet" href="../xml/xml.css">
+    <script src="../javascript/javascript.js"></script>
+    <link rel="stylesheet" href="../javascript/javascript.css">
+    <script src="../css/css.js"></script>
+    <link rel="stylesheet" href="../css/css.css">
+    <script src="../clike/clike.js"></script>
+    <link rel="stylesheet" href="../clike/clike.css">
+    <script src="php.js"></script>
+    <style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
+    <link rel="stylesheet" href="../../css/docs.css">
+  </head>
+  <body>
+    <h1>CodeMirror 2: PHP mode</h1>
+
+<form><textarea id="code" name="code">
+<?php
+function hello($who) {
+	return "Hello " . $who;
+}
+?>
+<p>The program says <?= hello("World") ?>.</p>
+<script>
+	alert("And here is some JS code"); // also colored
+</script>
+</textarea></form>
+
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+        lineNumbers: true,
+        matchBrackets: true,
+        mode: "application/x-httpd-php",
+        indentUnit: 8,
+        indentWithTabs: true,
+        enterMode: "keep",
+        tabMode: "shift"
+      });
+    </script>
+
+    <p>Simple HTML/PHP mode based on
+    the <a href="../clike/">C-like</a> mode. Depends on XML,
+    JavaScript, CSS, and C-like modes.</p>
+
+    <p><strong>MIME types defined:</strong> <code>application/x-httpd-php</code>.</p>
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/php/php.js b/plugins/LocalFilesEditor/codemirror/mode/php/php.js
new file mode 100644
index 000000000..a23538f6b
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/php/php.js
@@ -0,0 +1,83 @@
+(function() {
+  function keywords(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  var phpKeywords =
+    keywords("abstract and array as break case catch cfunction class clone const continue declare " +
+             "default do else elseif enddeclare endfor endforeach endif endswitch endwhile extends " +
+             "final for foreach function global goto if implements interface instanceof namespace " +
+             "new or private protected public static switch throw try use var while xor");
+
+  CodeMirror.defineMode("php", function(config, parserConfig) {
+    var htmlMode = CodeMirror.getMode(config, "text/html");
+    var jsMode = CodeMirror.getMode(config, "text/javascript");
+    var cssMode = CodeMirror.getMode(config, "text/css");
+    var phpMode = CodeMirror.getMode(config, {name: "clike", keywords: phpKeywords, multiLineStrings: true, $vars: true});
+
+    function dispatch(stream, state) { // TODO open PHP inside text/css
+      if (state.curMode == htmlMode) {
+        var style = htmlMode.token(stream, state.curState);
+        if (style == "xml-processing" && /^<\?/.test(stream.current())) {
+          state.curMode = phpMode;
+          state.curState = state.php;
+          state.curClose = /^\?>/;
+        }
+        else if (style == "xml-tag" && stream.current() == ">" && state.curState.context) {
+          if (/^script$/i.test(state.curState.context.tagName)) {
+            state.curMode = jsMode;
+            state.curState = jsMode.startState(htmlMode.indent(state.curState, ""));
+            state.curClose = /^<\/\s*script\s*>/i;
+          }
+          else if (/^style$/i.test(state.curState.context.tagName)) {
+            state.curMode = cssMode;
+            state.curState = cssMode.startState(htmlMode.indent(state.curState, ""));
+            state.curClose =  /^<\/\s*style\s*>/i;
+          }
+        }
+        return style;
+      }
+      else if (stream.match(state.curClose, false)) {
+        state.curMode = htmlMode;
+        state.curState = state.html;
+        state.curClose = null;
+        return dispatch(stream, state);
+      }
+      else return state.curMode.token(stream, state.curState);
+    }
+
+    return {
+      startState: function() {
+        var html = htmlMode.startState();
+        return {html: html,
+                php: phpMode.startState(),
+                curMode: htmlMode,
+                curState: html,
+                curClose: null}
+      },
+
+      copyState: function(state) {
+        var html = state.html, htmlNew = CodeMirror.copyState(htmlMode, html),
+            php = state.php, phpNew = CodeMirror.copyState(phpMode, php), cur;
+        if (state.curState == html) cur = htmlNew;
+        else if (state.curState == php) cur = phpNew;
+        else cur = CodeMirror.copyState(state.curMode, state.curState);
+        return {html: htmlNew, php: phpNew, curMode: state.curMode, curState: cur, curClose: state.curClose};
+      },
+
+      token: dispatch,
+
+      indent: function(state, textAfter) {
+        if ((state.curMode != phpMode && /^\s*<\//.test(textAfter)) ||
+            (state.curMode == phpMode && /^\?>/.test(textAfter)))
+          return htmlMode.indent(state.html, textAfter);
+        return state.curMode.indent(state.curState, textAfter);
+      },
+
+      electricChars: "/{}:"
+    }
+  });
+})();
+
+CodeMirror.defineMIME("application/x-httpd-php", "php");
diff --git a/plugins/LocalFilesEditor/codemirror/mode/stex/index.html b/plugins/LocalFilesEditor/codemirror/mode/stex/index.html
new file mode 100644
index 000000000..73b07ac13
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/stex/index.html
@@ -0,0 +1,96 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: sTeX mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="stex.js"></script>
+    <link rel="stylesheet" href="stex.css">
+    <style>.CodeMirror {background: #f8f8f8;}</style>
+    <link rel="stylesheet" href="../../css/docs.css">
+  </head>
+  <body>
+    <h1>CodeMirror 2: sTeX mode</h1>
+     <form><textarea id="code" name="code">
+\begin{module}[id=bbt-size]
+\importmodule[balanced-binary-trees]{balanced-binary-trees}
+\importmodule[\KWARCslides{dmath/en/cardinality}]{cardinality}
+
+\begin{frame}
+  \frametitle{Size Lemma for Balanced Trees}
+  \begin{itemize}
+  \item
+    \begin{assertion}[id=size-lemma,type=lemma] 
+    Let $G=\tup{V,E}$ be a \termref[cd=binary-trees]{balanced binary tree} 
+    of \termref[cd=graph-depth,name=vertex-depth]{depth}$n>i$, then the set
+     $\defeq{\livar{V}i}{\setst{\inset{v}{V}}{\gdepth{v} = i}}$ of
+    \termref[cd=graphs-intro,name=node]{nodes} at 
+    \termref[cd=graph-depth,name=vertex-depth]{depth} $i$ has
+    \termref[cd=cardinality,name=cardinality]{cardinality} $\power2i$.
+   \end{assertion}
+  \item
+    \begin{sproof}[id=size-lemma-pf,proofend=,for=size-lemma]{via induction over the depth $i$.}
+      \begin{spfcases}{We have to consider two cases}
+        \begin{spfcase}{$i=0$}
+          \begin{spfstep}[display=flow]
+            then $\livar{V}i=\set{\livar{v}r}$, where $\livar{v}r$ is the root, so
+            $\eq{\card{\livar{V}0},\card{\set{\livar{v}r}},1,\power20}$.
+          \end{spfstep}
+        \end{spfcase}
+        \begin{spfcase}{$i>0$}
+          \begin{spfstep}[display=flow]
+           then $\livar{V}{i-1}$ contains $\power2{i-1}$ vertexes 
+           \begin{justification}[method=byIH](IH)\end{justification}
+          \end{spfstep}
+          \begin{spfstep}
+           By the \begin{justification}[method=byDef]definition of a binary
+              tree\end{justification}, each $\inset{v}{\livar{V}{i-1}}$ is a leaf or has
+            two children that are at depth $i$.
+          \end{spfstep}
+          \begin{spfstep}
+           As $G$ is \termref[cd=balanced-binary-trees,name=balanced-binary-tree]{balanced} and $\gdepth{G}=n>i$, $\livar{V}{i-1}$ cannot contain
+            leaves.
+          \end{spfstep}
+          \begin{spfstep}[type=conclusion]
+           Thus $\eq{\card{\livar{V}i},{\atimes[cdot]{2,\card{\livar{V}{i-1}}}},{\atimes[cdot]{2,\power2{i-1}}},\power2i}$.
+          \end{spfstep}
+        \end{spfcase}
+      \end{spfcases}
+    \end{sproof}
+  \item 
+    \begin{assertion}[id=fbbt,type=corollary]	
+      A fully balanced tree of depth $d$ has $\power2{d+1}-1$ nodes.
+    \end{assertion}
+  \item
+      \begin{sproof}[for=fbbt,id=fbbt-pf]{}
+        \begin{spfstep}
+          Let $\defeq{G}{\tup{V,E}}$ be a fully balanced tree
+        \end{spfstep}
+        \begin{spfstep}
+          Then $\card{V}=\Sumfromto{i}1d{\power2i}= \power2{d+1}-1$.
+        \end{spfstep}
+      \end{sproof}
+    \end{itemize}
+  \end{frame}
+\begin{note}
+  \begin{omtext}[type=conclusion,for=binary-tree]
+    This shows that balanced binary trees grow in breadth very quickly, a consequence of
+    this is that they are very shallow (and this compute very fast), which is the essence of
+    the next result.
+  \end{omtext}
+\end{note}
+\end{module}
+
+%%% Local Variables: 
+%%% mode: LaTeX
+%%% TeX-master: "all"
+%%% End: \end{document}
+</textarea></form>
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {});
+    </script>
+
+    <p><strong>MIME types defined:</strong> <code>text/stex</code>.</p>
+
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/stex/stex.css b/plugins/LocalFilesEditor/codemirror/mode/stex/stex.css
new file mode 100644
index 000000000..64b975e98
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/stex/stex.css
@@ -0,0 +1,20 @@
+span.css-at {color: #708;}
+span.css-unit {color: #281;}
+span.css-value {color: #708;}
+span.css-identifier {color: black;}
+span.css-selector {color: #11B;}
+span.css-important {color: #00F;}
+span.css-colorcode {color: #299;}
+span.css-comment {color: #A70;}
+span.css-string {color: #A22;}
+
+span.stex-unit { color: #281; }
+span.stex-identifier { color: black; }
+span.stex-slash { color: #FAA; }
+span.stex-command { color: #00F; }
+span.stex-comment { color: #A70; }
+span.stex-import { color: #00F; }
+span.stex-filepath { color: #852626; }
+span.stex-module { color: #852626; }
+span.stex-error { text-decoration: underline; color: red; }
+span.stex-string { color: #A22; }
diff --git a/plugins/LocalFilesEditor/codemirror/mode/stex/stex.js b/plugins/LocalFilesEditor/codemirror/mode/stex/stex.js
new file mode 100644
index 000000000..10e0d6cad
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/stex/stex.js
@@ -0,0 +1,167 @@
+/*
+ * Author: Constantin Jucovschi (c.jucovschi@jacobs-university.de)
+ * Licence: MIT
+ */
+
+CodeMirror.defineMode("stex", function(cmCfg, modeCfg) 
+{    
+    function pushCommand(state, command) {
+	state.cmdState.push(command);
+    }
+
+    function peekCommand(state) { 
+	if (state.cmdState.length>0)
+	    return state.cmdState[state.cmdState.length-1];
+	else
+	    return null;
+    }
+
+    function popCommand(state) {
+	if (state.cmdState.length>0) {
+	    var plug = state.cmdState.pop();
+	    plug.closeBracket();
+	}	    
+    }
+
+    function applyMostPowerful(state) {
+      context = state.cmdState;
+      for (var i = context.length - 1; i >= 0; i--) {
+	  var plug = context[i];
+	  if (plug.name=="DEFAULT")
+	      continue;
+	  return plug.styleIdentifier();
+      }
+      return "stex-identifier";
+    }
+
+    function addPluginPattern(pluginName, cmdStyle, brackets, styles) {
+	return function () {
+	    this.name=pluginName;
+	    this.bracketNo = 0;
+	    this.style=cmdStyle;
+	    this.styles = styles;
+	    this.brackets = brackets;
+
+	    this.styleIdentifier = function(content) {
+		if (this.bracketNo<=this.styles.length)
+		    return this.styles[this.bracketNo-1];
+		else
+		    return null;
+	    };
+	    this.openBracket = function(content) {
+		this.bracketNo++;
+		return "stex-bracket";
+	    };
+	    this.closeBracket = function(content) {
+	    };
+	}
+    }
+
+    var plugins = new Array();
+   
+    plugins["importmodule"] = addPluginPattern("importmodule", "stex-command", "{[", ["stex-filepath", "stex-module"]);
+    plugins["documentclass"] = addPluginPattern("documentclass", "stex-command", "{[", ["", "stex-unit"]);
+    plugins["usepackage"] = addPluginPattern("documentclass", "stex-command", "[", ["stex-unit"]);
+    plugins["begin"] = addPluginPattern("documentclass", "stex-command", "[", ["stex-unit"]);
+    plugins["end"] = addPluginPattern("documentclass", "stex-command", "[", ["stex-unit"]);
+
+    plugins["DEFAULT"] = function () {
+	this.name="DEFAULT";
+	this.style="stex-command";
+
+	this.styleIdentifier = function(content) {
+	};
+	this.openBracket = function(content) {
+	};
+	this.closeBracket = function(content) {
+	};
+    };
+
+    function setState(state, f) {
+	state.f = f;
+    }
+
+    function normal(source, state) {
+	if (source.match(/^\\[a-z]+/)) {
+	    cmdName = source.current();
+	    cmdName = cmdName.substr(1, cmdName.length-1);
+	    var plug = plugins[cmdName];
+	    if (typeof(plug) == 'undefined') {
+		plug = plugins["DEFAULT"];
+	    }
+	    plug = new plug();
+	    pushCommand(state, plug);
+	    setState(state, beginParams);
+	    return plug.style;
+	}
+
+	var ch = source.next();
+	if (ch == "%") {
+	    setState(state, inCComment);
+	    return "stex-comment";
+	} 
+	else if (ch=='}' || ch==']') {
+	    plug = peekCommand(state);
+	    if (plug) {
+		plug.closeBracket(ch);
+		setState(state, beginParams);
+	    } else
+		return "stex-error";
+	    return "stex-bracket";
+	} else if (ch=='{' || ch=='[') {
+	    plug = plugins["DEFAULT"];	    
+	    plug = new plug();
+	    pushCommand(state, plug);
+	    return "stex-bracket";	    
+	}
+	else if (/\d/.test(ch)) {
+	    source.eatWhile(/[\w.%]/);
+	    return "stex-unit";
+	}
+	else {
+	    source.eatWhile(/[\w-_]/);
+	    return applyMostPowerful(state);
+	}
+    }
+
+    function inCComment(source, state) {
+	source.skipToEnd();
+	setState(state, normal);
+	return "css-comment";
+    }
+
+    function beginParams(source, state) {
+	var ch = source.peek();
+	if (ch == '{' || ch == '[') {
+	   lastPlug = peekCommand(state);
+	   style = lastPlug.openBracket(ch);
+	   source.eat(ch);
+	   setState(state, normal);
+	   return "stex-bracket";
+	}
+	if (/[ \t\r]/.test(ch)) {
+	    source.eat(ch);
+	    return null;
+	}
+	setState(state, normal);
+	lastPlug = peekCommand(state);
+	if (lastPlug) {
+	    popCommand(state);
+	}
+        return normal(source, state);
+    }
+
+    return {
+     startState: function() { return { f:normal, cmdState:[] }; },
+	 copyState: function(s) { return { f: s.f, cmdState: s.cmdState.slice(0, s.cmdState.length) }; },
+	 
+	 token: function(stream, state) {
+	 var t = state.f(stream, state);
+	 var w = stream.current();
+	 return t;
+     }
+ };
+});
+
+
+CodeMirror.defineMIME("text/x-stex", "stex");
diff --git a/plugins/LocalFilesEditor/codemirror/mode/xml/index.html b/plugins/LocalFilesEditor/codemirror/mode/xml/index.html
new file mode 100644
index 000000000..5ad7c63fe
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/xml/index.html
@@ -0,0 +1,42 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror 2: XML mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="xml.js"></script>
+    <link rel="stylesheet" href="xml.css">
+    <style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
+    <link rel="stylesheet" href="../../css/docs.css">
+  </head>
+  <body>
+    <h1>CodeMirror 2: XML mode</h1>
+    <form><textarea id="code" name="code">
+&lt;html style="color: green"&gt;
+  &lt;!-- this is a comment --&gt;
+  &lt;head&gt;
+    &lt;title&gt;HTML Example&lt;/title&gt;
+  &lt;/head&gt;
+  &lt;body&gt;
+    The indentation tries to be &lt;em&gt;somewhat &amp;quot;do what
+    I mean&amp;quot;&lt;/em&gt;... but might not match your style.
+  &lt;/body&gt;
+&lt;/html&gt;
+</textarea></form>
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {mode: {name: "xml", htmlMode: true}});
+    </script>
+    <p>The XML mode supports two configuration parameters:</p>
+    <dl>
+      <dt><code>htmlMode (boolean)</code></dt>
+      <dd>This switches the mode to parse HTML instead of XML. This
+      means attributes do not have to be quoted, and some elements
+      (such as <code>br</code>) do not require a closing tag.</dd>
+      <dt><code>alignCDATA (boolean)</code></dt>
+      <dd>Setting this to true will force the opening tag of CDATA
+      blocks to not be indented.</dd>
+    </dl>
+
+    <p><strong>MIME types defined:</strong> <code>application/xml</code>, <code>text/html</code>.</p>
+  </body>
+</html>
diff --git a/plugins/LocalFilesEditor/codemirror/mode/xml/xml.css b/plugins/LocalFilesEditor/codemirror/mode/xml/xml.css
new file mode 100644
index 000000000..86845faa6
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/xml/xml.css
@@ -0,0 +1,7 @@
+span.xml-tag {color: #a0b;}
+span.xml-attribute {color: #281;}
+span.xml-attname {color: #00f;}
+span.xml-comment {color: #a70;}
+span.xml-cdata {color: #48a;}
+span.xml-processing {color: #999;}
+span.xml-entity {color: #a22;}
diff --git a/plugins/LocalFilesEditor/codemirror/mode/xml/xml.js b/plugins/LocalFilesEditor/codemirror/mode/xml/xml.js
new file mode 100644
index 000000000..21da47b22
--- /dev/null
+++ b/plugins/LocalFilesEditor/codemirror/mode/xml/xml.js
@@ -0,0 +1,206 @@
+CodeMirror.defineMode("xml", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+  var Kludges = parserConfig.htmlMode ? {
+    autoSelfClosers: {"br": true, "img": true, "hr": true, "link": true, "input": true,
+                      "meta": true, "col": true, "frame": true, "base": true, "area": true},
+    doNotIndent: {"pre": true, "!cdata": true},
+    allowUnquoted: true
+  } : {autoSelfClosers: {}, doNotIndent: {"!cdata": true}, allowUnquoted: false};
+  var alignCDATA = parserConfig.alignCDATA;
+
+  // Return variables for tokenizers
+  var tagName, type;
+
+  function inText(stream, state) {
+    function chain(parser) {
+      state.tokenize = parser;
+      return parser(stream, state);
+    }
+
+    var ch = stream.next();
+    if (ch == "<") {
+      if (stream.eat("!")) {
+        if (stream.eat("[")) {
+          if (stream.match("[CDATA[")) return chain(inBlock("xml-cdata", "]]>"));
+          else return null;
+        }
+        else if (stream.match("--")) return chain(inBlock("xml-comment", "-->"));
+        else if (stream.match("DOCTYPE")) {
+          stream.eatWhile(/[\w\._\-]/);
+          return chain(inBlock("xml-doctype", ">"));
+        }
+        else return null;
+      }
+      else if (stream.eat("?")) {
+        stream.eatWhile(/[\w\._\-]/);
+        state.tokenize = inBlock("xml-processing", "?>");
+        return "xml-processing";
+      }
+      else {
+        type = stream.eat("/") ? "closeTag" : "openTag";
+        stream.eatSpace();
+        tagName = "";
+        var c;
+        while ((c = stream.eat(/[^\s\u00a0=<>\"\'\/?]/))) tagName += c;
+        state.tokenize = inTag;
+        return "xml-tag";
+      }
+    }
+    else if (ch == "&") {
+      stream.eatWhile(/[^;]/);
+      stream.eat(";");
+      return "xml-entity";
+    }
+    else {
+      stream.eatWhile(/[^&<]/);
+      return null;
+    }
+  }
+
+  function inTag(stream, state) {
+    var ch = stream.next();
+    if (ch == ">" || (ch == "/" && stream.eat(">"))) {
+      state.tokenize = inText;
+      type = ch == ">" ? "endTag" : "selfcloseTag";
+      return "xml-tag";
+    }
+    else if (ch == "=") {
+      type = "equals";
+      return null;
+    }
+    else if (/[\'\"]/.test(ch)) {
+      state.tokenize = inAttribute(ch);
+      return state.tokenize(stream, state);
+    }
+    else {
+      stream.eatWhile(/[^\s\u00a0=<>\"\'\/?]/);
+      return "xml-word";
+    }
+  }
+
+  function inAttribute(quote) {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        if (stream.next() == quote) {
+          state.tokenize = inTag;
+          break;
+        }
+      }
+      return "xml-attribute";
+    };
+  }
+
+  function inBlock(style, terminator) {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        if (stream.match(terminator)) {
+          state.tokenize = inText;
+          break;
+        }
+        stream.next();
+      }
+      return style;
+    };
+  }
+
+  var curState, setStyle;
+  function pass() {
+    for (var i = arguments.length - 1; i >= 0; i--) curState.cc.push(arguments[i]);
+  }
+  function cont() {
+    pass.apply(null, arguments);
+    return true;
+  }
+
+  function pushContext(tagName, startOfLine) {
+    var noIndent = Kludges.doNotIndent.hasOwnProperty(tagName) || (curState.context && curState.context.noIndent);
+    curState.context = {
+      prev: curState.context,
+      tagName: tagName,
+      indent: curState.indented,
+      startOfLine: startOfLine,
+      noIndent: noIndent
+    };
+  }
+  function popContext() {
+    if (curState.context) curState.context = curState.context.prev;
+  }
+
+  function element(type) {
+    if (type == "openTag") {curState.tagName = tagName; return cont(attributes, endtag(curState.startOfLine));}
+    else if (type == "closeTag") {popContext(); return cont(endclosetag);}
+    else if (type == "xml-cdata") {
+      if (!curState.context || curState.context.name != "!cdata") pushContext("!cdata");
+      if (curState.tokenize == inText) popContext();
+      return cont();
+    }
+    else return cont();
+  }
+  function endtag(startOfLine) {
+    return function(type) {
+      if (type == "selfcloseTag" ||
+          (type == "endTag" && Kludges.autoSelfClosers.hasOwnProperty(curState.tagName.toLowerCase())))
+        return cont();
+      if (type == "endTag") {pushContext(curState.tagName, startOfLine); return cont();}
+      return cont();
+    };
+  }
+  function endclosetag(type) {
+    if (type == "endTag") return cont();
+    return pass();
+  }
+
+  function attributes(type) {
+    if (type == "xml-word") {setStyle = "xml-attname"; return cont(attributes);}
+    if (type == "equals") return cont(attvalue, attributes);
+    return pass();
+  }
+  function attvalue(type) {
+    if (type == "xml-word" && Kludges.allowUnquoted) {setStyle = "xml-attribute"; return cont();}
+    if (type == "xml-attribute") return cont();
+    return pass();
+  }
+
+  return {
+    startState: function() {
+      return {tokenize: inText, cc: [], indented: 0, startOfLine: true, tagName: null, context: null};
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        state.startOfLine = true;
+        state.indented = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+
+      setStyle = type = tagName = null;
+      var style = state.tokenize(stream, state);
+      if ((style || type) && style != "xml-comment") {
+        curState = state;
+        while (true) {
+          var comb = state.cc.pop() || element;
+          if (comb(type || style)) break;
+        }
+      }
+      state.startOfLine = false;
+      return setStyle || style;
+    },
+
+    indent: function(state, textAfter) {
+      var context = state.context;
+      if (context && context.noIndent) return 0;
+      if (alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
+      if (context && /^<\//.test(textAfter))
+        context = context.prev;
+      while (context && !context.startOfLine)
+        context = context.prev;
+      if (context) return context.indent + indentUnit;
+      else return 0;
+    },
+
+    electricChars: "/"
+  };
+});
+
+CodeMirror.defineMIME("application/xml", "xml");
+CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});