' : "
"), text);
          for (var j = 1; j < line.height; ++j) html.push("
 ");
          html.push("
");
          if (!marker) normalNode = i;
        }
        ++i;
      });
      gutter.style.display = "none";
      gutterText.innerHTML = html.join("");
      // Make sure scrolling doesn't cause number gutter size to pop
      if (normalNode != null && options.lineNumbers) {
        var node = gutterText.childNodes[normalNode - showingFrom];
        var minwidth = String(doc.size).length, val = eltText(node.firstChild), pad = "";
        while (val.length + pad.length < minwidth) pad += "\u00a0";
        if (pad) node.insertBefore(document.createTextNode(pad), node.firstChild);
      }
      gutter.style.display = "";
      var resized = Math.abs((parseInt(lineSpace.style.marginLeft) || 0) - gutter.offsetWidth) > 2;
      lineSpace.style.marginLeft = gutter.offsetWidth + "px";
      gutterDirty = false;
      return resized;
    }
    function updateSelection() {
      var collapsed = posEq(sel.from, sel.to);
      var fromPos = localCoords(sel.from, true);
      var toPos = collapsed ? fromPos : localCoords(sel.to, true);
      var headPos = sel.inverted ? fromPos : toPos, th = textHeight();
      var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv);
      inputDiv.style.top = Math.max(0, Math.min(scroller.offsetHeight, headPos.y + lineOff.top - wrapOff.top)) + "px";
      inputDiv.style.left = Math.max(0, Math.min(scroller.offsetWidth, headPos.x + lineOff.left - wrapOff.left)) + "px";
      if (collapsed) {
        cursor.style.top = headPos.y + "px";
        cursor.style.left = (options.lineWrapping ? Math.min(headPos.x, lineSpace.offsetWidth) : headPos.x) + "px";
        cursor.style.display = "";
        selectionDiv.style.display = "none";
      } else {
        var sameLine = fromPos.y == toPos.y, html = "";
        var clientWidth = lineSpace.clientWidth || lineSpace.offsetWidth;
        var clientHeight = lineSpace.clientHeight || lineSpace.offsetHeight;
        function add(left, top, right, height) {
          var rstyle = quirksMode ? "width: " + (!right ? clientWidth : clientWidth - right - left) + "px"
                                  : "right: " + right + "px";
          html += '
';
        }
        if (sel.from.ch && fromPos.y >= 0) {
          var right = sameLine ? clientWidth - toPos.x : 0;
          add(fromPos.x, fromPos.y, right, th);
        }
        var middleStart = Math.max(0, fromPos.y + (sel.from.ch ? th : 0));
        var middleHeight = Math.min(toPos.y, clientHeight) - middleStart;
        if (middleHeight > 0.2 * th)
          add(0, middleStart, 0, middleHeight);
        if ((!sameLine || !sel.from.ch) && toPos.y < clientHeight - .5 * th)
          add(0, toPos.y, clientWidth - toPos.x, th);
        selectionDiv.innerHTML = html;
        cursor.style.display = "none";
        selectionDiv.style.display = "";
      }
    }

    function setShift(val) {
      if (val) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
      else shiftSelecting = null;
    }
    function setSelectionUser(from, to) {
      var sh = shiftSelecting && clipPos(shiftSelecting);
      if (sh) {
        if (posLess(sh, from)) from = sh;
        else if (posLess(to, sh)) to = sh;
      }
      setSelection(from, to);
      userSelChange = true;
    }
    // Update the selection. Last two args are only used by
    // updateLines, since they have to be expressed in the line
    // numbers before the update.
    function setSelection(from, to, oldFrom, oldTo) {
      goalColumn = null;
      if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
      if (posEq(sel.from, from) && posEq(sel.to, to)) return;
      if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}

      // Skip over hidden lines.
      if (from.line != oldFrom) {
        var from1 = skipHidden(from, oldFrom, sel.from.ch);
        // If there is no non-hidden line left, force visibility on current line
        if (!from1) setLineHidden(from.line, false);
        else from = from1;
      }
      if (to.line != oldTo) to = skipHidden(to, oldTo, sel.to.ch);

      if (posEq(from, to)) sel.inverted = false;
      else if (posEq(from, sel.to)) sel.inverted = false;
      else if (posEq(to, sel.from)) sel.inverted = true;

      if (options.autoClearEmptyLines && posEq(sel.from, sel.to)) {
        var head = sel.inverted ? from : to;
        if (head.line != sel.from.line && sel.from.line < doc.size) {
          var oldLine = getLine(sel.from.line);
          if (/^\s+$/.test(oldLine.text))
            setTimeout(operation(function() {
              if (oldLine.parent && /^\s+$/.test(oldLine.text)) {
                var no = lineNo(oldLine);
                replaceRange("", {line: no, ch: 0}, {line: no, ch: oldLine.text.length});
              }
            }, 10));
        }
      }

      sel.from = from; sel.to = to;
      selectionChanged = true;
    }
    function skipHidden(pos, oldLine, oldCh) {
      function getNonHidden(dir) {
        var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;
        while (lNo != end) {
          var line = getLine(lNo);
          if (!line.hidden) {
            var ch = pos.ch;
            if (toEnd || ch > oldCh || ch > line.text.length) ch = line.text.length;
            return {line: lNo, ch: ch};
          }
          lNo += dir;
        }
      }
      var line = getLine(pos.line);
      var toEnd = pos.ch == line.text.length && pos.ch != oldCh;
      if (!line.hidden) return pos;
      if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);
      else return getNonHidden(-1) || getNonHidden(1);
    }
    function setCursor(line, ch, user) {
      var pos = clipPos({line: line, ch: ch || 0});
      (user ? setSelectionUser : setSelection)(pos, pos);
    }

    function clipLine(n) {return Math.max(0, Math.min(n, doc.size-1));}
    function clipPos(pos) {
      if (pos.line < 0) return {line: 0, ch: 0};
      if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc.size-1).text.length};
      var ch = pos.ch, linelen = getLine(pos.line).text.length;
      if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};
      else if (ch < 0) return {line: pos.line, ch: 0};
      else return pos;
    }

    function findPosH(dir, unit) {
      var end = sel.inverted ? sel.from : sel.to, line = end.line, ch = end.ch;
      var lineObj = getLine(line);
      function findNextLine() {
        for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {
          var lo = getLine(l);
          if (!lo.hidden) { line = l; lineObj = lo; return true; }
        }
      }
      function moveOnce(boundToLine) {
        if (ch == (dir < 0 ? 0 : lineObj.text.length)) {
          if (!boundToLine && findNextLine()) ch = dir < 0 ? lineObj.text.length : 0;
          else return false;
        } else ch += dir;
        return true;
      }
      if (unit == "char") moveOnce();
      else if (unit == "column") moveOnce(true);
      else if (unit == "word") {
        var sawWord = false;
        for (;;) {
          if (dir < 0) if (!moveOnce()) break;
          if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;
          else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}
          if (dir > 0) if (!moveOnce()) break;
        }
      }
      return {line: line, ch: ch};
    }
    function moveH(dir, unit) {
      var pos = dir < 0 ? sel.from : sel.to;
      if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit);
      setCursor(pos.line, pos.ch, true);
    }
    function deleteH(dir, unit) {
      if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to);
      else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to);
      else replaceRange("", sel.from, findPosH(dir, unit));
      userSelChange = true;
    }
    var goalColumn = null;
    function moveV(dir, unit) {
      var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true);
      if (goalColumn != null) pos.x = goalColumn;
      if (unit == "page") dist = Math.min(scroller.clientHeight, window.innerHeight || document.documentElement.clientHeight);
      else if (unit == "line") dist = textHeight();
      var target = coordsChar(pos.x, pos.y + dist * dir + 2);
      if (unit == "page") scrollbar.scrollTop += localCoords(target, true).y - pos.y;
      setCursor(target.line, target.ch, true);
      goalColumn = pos.x;
    }

    function selectWordAt(pos) {
      var line = getLine(pos.line).text;
      var start = pos.ch, end = pos.ch;
      while (start > 0 && isWordChar(line.charAt(start - 1))) --start;
      while (end < line.length && isWordChar(line.charAt(end))) ++end;
      setSelectionUser({line: pos.line, ch: start}, {line: pos.line, ch: end});
    }
    function selectLine(line) {
      setSelectionUser({line: line, ch: 0}, clipPos({line: line + 1, ch: 0}));
    }
    function indentSelected(mode) {
      if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
      var e = sel.to.line - (sel.to.ch ? 0 : 1);
      for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);
    }

    function indentLine(n, how) {
      if (!how) how = "add";
      if (how == "smart") {
        if (!mode.indent) how = "prev";
        else var state = getStateBefore(n);
      }

      var line = getLine(n), curSpace = line.indentation(options.tabSize),
          curSpaceString = line.text.match(/^\s*/)[0], indentation;
      if (how == "smart") {
        indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text);
        if (indentation == Pass) how = "prev";
      }
      if (how == "prev") {
        if (n) indentation = getLine(n-1).indentation(options.tabSize);
        else indentation = 0;
      }
      else if (how == "add") indentation = curSpace + options.indentUnit;
      else if (how == "subtract") indentation = curSpace - options.indentUnit;
      indentation = Math.max(0, indentation);
      var diff = indentation - curSpace;

      if (!diff) {
        if (sel.from.line != n && sel.to.line != n) return;
        var indentString = curSpaceString;
      } else {
        var indentString = "", pos = 0;
        if (options.indentWithTabs)
          for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";}
        while (pos < indentation) {++pos; indentString += " ";}
      }

      replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});
    }

    function loadMode() {
      mode = CodeMirror.getMode(options, options.mode);
      doc.iter(0, doc.size, function(line) { line.stateAfter = null; });
      work = [0];
      startWorker();
    }
    function gutterChanged() {
      var visible = options.gutter || options.lineNumbers;
      gutter.style.display = visible ? "" : "none";
      if (visible) gutterDirty = true;
      else lineDiv.parentNode.style.marginLeft = 0;
    }
    function wrappingChanged(from, to) {
      if (options.lineWrapping) {
        wrapper.className += " CodeMirror-wrap";
        var perLine = scroller.clientWidth / charWidth() - 3;
        doc.iter(0, doc.size, function(line) {
          if (line.hidden) return;
          var guess = Math.ceil(line.text.length / perLine) || 1;
          if (guess != 1) updateLineHeight(line, guess);
        });
        lineSpace.style.width = code.style.width = "";
        widthForcer.style.left = "";
      } else {
        wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
        maxLine = ""; maxLineChanged = true;
        doc.iter(0, doc.size, function(line) {
          if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
          if (line.text.length > maxLine.length) maxLine = line.text;
        });
      }
      changes.push({from: 0, to: doc.size});
    }
    function makeTab(col) {
      var w = options.tabSize - col % options.tabSize, cached = tabCache[w];
      if (cached) return cached;
      for (var str = '', i = 0; i < w; ++i) str += " ";
      return (tabCache[w] = {html: str + "", width: w});
    }
    function themeChanged() {
      scroller.className = scroller.className.replace(/\s*cm-s-\S+/g, "") +
        options.theme.replace(/(^|\s)\s*/g, " cm-s-");
    }
    function keyMapChanged() {
      var style = keyMap[options.keyMap].style;
      wrapper.className = wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
        (style ? " cm-keymap-" + style : "");
    }

    function TextMarker() { this.set = []; }
    TextMarker.prototype.clear = operation(function() {
      var min = Infinity, max = -Infinity;
      for (var i = 0, e = this.set.length; i < e; ++i) {
        var line = this.set[i], mk = line.marked;
        if (!mk || !line.parent) continue;
        var lineN = lineNo(line);
        min = Math.min(min, lineN); max = Math.max(max, lineN);
        for (var j = 0; j < mk.length; ++j)
          if (mk[j].marker == this) mk.splice(j--, 1);
      }
      if (min != Infinity)
        changes.push({from: min, to: max + 1});
    });
    TextMarker.prototype.find = function() {
      var from, to;
      for (var i = 0, e = this.set.length; i < e; ++i) {
        var line = this.set[i], mk = line.marked;
        for (var j = 0; j < mk.length; ++j) {
          var mark = mk[j];
          if (mark.marker == this) {
            if (mark.from != null || mark.to != null) {
              var found = lineNo(line);
              if (found != null) {
                if (mark.from != null) from = {line: found, ch: mark.from};
                if (mark.to != null) to = {line: found, ch: mark.to};
              }
            }
          }
        }
      }
      return {from: from, to: to};
    };

    function markText(from, to, className) {
      from = clipPos(from); to = clipPos(to);
      var tm = new TextMarker();
      if (!posLess(from, to)) return tm;
      function add(line, from, to, className) {
        getLine(line).addMark(new MarkedText(from, to, className, tm));
      }
      if (from.line == to.line) add(from.line, from.ch, to.ch, className);
      else {
        add(from.line, from.ch, null, className);
        for (var i = from.line + 1, e = to.line; i < e; ++i)
          add(i, null, null, className);
        add(to.line, null, to.ch, className);
      }
      changes.push({from: from.line, to: to.line + 1});
      return tm;
    }

    function setBookmark(pos) {
      pos = clipPos(pos);
      var bm = new Bookmark(pos.ch);
      getLine(pos.line).addMark(bm);
      return bm;
    }

    function findMarksAt(pos) {
      pos = clipPos(pos);
      var markers = [], marked = getLine(pos.line).marked;
      if (!marked) return markers;
      for (var i = 0, e = marked.length; i < e; ++i) {
        var m = marked[i];
        if ((m.from == null || m.from <= pos.ch) &&
            (m.to == null || m.to >= pos.ch))
          markers.push(m.marker || m);
      }
      return markers;
    }

    function addGutterMarker(line, text, className) {
      if (typeof line == "number") line = getLine(clipLine(line));
      line.gutterMarker = {text: text, style: className};
      gutterDirty = true;
      return line;
    }
    function removeGutterMarker(line) {
      if (typeof line == "number") line = getLine(clipLine(line));
      line.gutterMarker = null;
      gutterDirty = true;
    }

    function changeLine(handle, op) {
      var no = handle, line = handle;
      if (typeof handle == "number") line = getLine(clipLine(handle));
      else no = lineNo(handle);
      if (no == null) return null;
      if (op(line, no)) changes.push({from: no, to: no + 1});
      else return null;
      return line;
    }
    function setLineClass(handle, className, bgClassName) {
      return changeLine(handle, function(line) {
        if (line.className != className || line.bgClassName != bgClassName) {
          line.className = className;
          line.bgClassName = bgClassName;
          return true;
        }
      });
    }
    function setLineHidden(handle, hidden) {
      return changeLine(handle, function(line, no) {
        if (line.hidden != hidden) {
          line.hidden = hidden;
          if (!options.lineWrapping) {
            var l = line.text;
            if (hidden && l.length == maxLine.length) {
              updateMaxLine = true;
            } else if (!hidden && l.length > maxLine.length) {
              maxLine = l; maxWidth = null; updateMaxLine = false;
            }
          }
          updateLineHeight(line, hidden ? 0 : 1);
          var fline = sel.from.line, tline = sel.to.line;
          if (hidden && (fline == no || tline == no)) {
            var from = fline == no ? skipHidden({line: fline, ch: 0}, fline, 0) : sel.from;
            var to = tline == no ? skipHidden({line: tline, ch: 0}, tline, 0) : sel.to;
            // Can't hide the last visible line, we'd have no place to put the cursor
            if (!to) return;
            setSelection(from, to);
          }
          return (gutterDirty = true);
        }
      });
    }

    function lineInfo(line) {
      if (typeof line == "number") {
        if (!isLine(line)) return null;
        var n = line;
        line = getLine(line);
        if (!line) return null;
      } else {
        var n = lineNo(line);
        if (n == null) return null;
      }
      var marker = line.gutterMarker;
      return {line: n, handle: line, text: line.text, markerText: marker && marker.text,
              markerClass: marker && marker.style, lineClass: line.className, bgClass: line.bgClassName};
    }

    function stringWidth(str) {
      measure.innerHTML = "
x
";
      measure.firstChild.firstChild.firstChild.nodeValue = str;
      return measure.firstChild.firstChild.offsetWidth || 10;
    }
    // These are used to go from pixel positions to character
    // positions, taking varying character widths into account.
    function charFromX(line, x) {
      if (x <= 0) return 0;
      var lineObj = getLine(line), text = lineObj.text;
      function getX(len) {
        return measureLine(lineObj, len).left;
      }
      var from = 0, fromX = 0, to = text.length, toX;
      // Guess a suitable upper bound for our search.
      var estimated = Math.min(to, Math.ceil(x / charWidth()));
      for (;;) {
        var estX = getX(estimated);
        if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
        else {toX = estX; to = estimated; break;}
      }
      if (x > toX) return to;
      // Try to guess a suitable lower bound as well.
      estimated = Math.floor(to * 0.8); estX = getX(estimated);
      if (estX < x) {from = estimated; fromX = estX;}
      // Do a binary search between these bounds.
      for (;;) {
        if (to - from <= 1) return (toX - x > x - fromX) ? from : to;
        var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
        if (middleX > x) {to = middle; toX = middleX;}
        else {from = middle; fromX = middleX;}
      }
    }

    var tempId = "CodeMirror-temp-" + Math.floor(Math.random() * 0xffffff).toString(16);
    function measureLine(line, ch) {
      if (ch == 0) return {top: 0, left: 0};
      var wbr = options.lineWrapping && ch < line.text.length &&
                spanAffectsWrapping.test(line.text.slice(ch - 1, ch + 1));
      measure.innerHTML = "
" + line.getHTML(makeTab, ch, tempId, wbr) + "
";
      var elt = document.getElementById(tempId);
      var top = elt.offsetTop, left = elt.offsetLeft;
      // Older IEs report zero offsets for spans directly after a wrap
      if (ie && top == 0 && left == 0) {
        var backup = document.createElement("span");
        backup.innerHTML = "x";
        elt.parentNode.insertBefore(backup, elt.nextSibling);
        top = backup.offsetTop;
      }
      return {top: top, left: left};
    }
    function localCoords(pos, inLineWrap) {
      var x, lh = textHeight(), y = lh * (heightAtLine(doc, pos.line) - (inLineWrap ? displayOffset : 0));
      if (pos.ch == 0) x = 0;
      else {
        var sp = measureLine(getLine(pos.line), pos.ch);
        x = sp.left;
        if (options.lineWrapping) y += Math.max(0, sp.top);
      }
      return {x: x, y: y, yBot: y + lh};
    }
    // Coords must be lineSpace-local
    function coordsChar(x, y) {
      if (y < 0) y = 0;
      var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th);
      var lineNo = lineAtHeight(doc, heightPos);
      if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc.size - 1).text.length};
      var lineObj = getLine(lineNo), text = lineObj.text;
      var tw = options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0;
      if (x <= 0 && innerOff == 0) return {line: lineNo, ch: 0};
      function getX(len) {
        var sp = measureLine(lineObj, len);
        if (tw) {
          var off = Math.round(sp.top / th);
          return Math.max(0, sp.left + (off - innerOff) * scroller.clientWidth);
        }
        return sp.left;
      }
      var from = 0, fromX = 0, to = text.length, toX;
      // Guess a suitable upper bound for our search.
      var estimated = Math.min(to, Math.ceil((x + innerOff * scroller.clientWidth * .9) / cw));
      for (;;) {
        var estX = getX(estimated);
        if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
        else {toX = estX; to = estimated; break;}
      }
      if (x > toX) return {line: lineNo, ch: to};
      // Try to guess a suitable lower bound as well.
      estimated = Math.floor(to * 0.8); estX = getX(estimated);
      if (estX < x) {from = estimated; fromX = estX;}
      // Do a binary search between these bounds.
      for (;;) {
        if (to - from <= 1) return {line: lineNo, ch: (toX - x > x - fromX) ? from : to};
        var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
        if (middleX > x) {to = middle; toX = middleX;}
        else {from = middle; fromX = middleX;}
      }
    }
    function pageCoords(pos) {
      var local = localCoords(pos, true), off = eltOffset(lineSpace);
      return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot};
    }

    var cachedHeight, cachedHeightFor, measureText;
    function textHeight() {
      if (measureText == null) {
        measureText = "
";
        for (var i = 0; i < 49; ++i) measureText += "x
";
        measureText += "x
";
      }
      var offsetHeight = lineDiv.clientHeight;
      if (offsetHeight == cachedHeightFor) return cachedHeight;
      cachedHeightFor = offsetHeight;
      measure.innerHTML = measureText;
      cachedHeight = measure.firstChild.offsetHeight / 50 || 1;
      measure.innerHTML = "";
      return cachedHeight;
    }
    var cachedWidth, cachedWidthFor = 0;
    function charWidth() {
      if (scroller.clientWidth == cachedWidthFor) return cachedWidth;
      cachedWidthFor = scroller.clientWidth;
      return (cachedWidth = stringWidth("x"));
    }
    function paddingTop() {return lineSpace.offsetTop;}
    function paddingLeft() {return lineSpace.offsetLeft;}

    function posFromMouse(e, liberal) {
      var offW = eltOffset(scroller, true), x, y;
      // Fails unpredictably on IE[67] when mouse is dragged around quickly.
      try { x = e.clientX; y = e.clientY; } catch (e) { return null; }
      // This is a mess of a heuristic to try and determine whether a
      // scroll-bar was clicked or not, and to return null if one was
      // (and !liberal).
      if (!liberal && (x - offW.left > scroller.clientWidth || y - offW.top > scroller.clientHeight))
        return null;
      var offL = eltOffset(lineSpace, true);
      return coordsChar(x - offL.left, y - offL.top);
    }
    function onContextMenu(e) {
      var pos = posFromMouse(e), scrollPos = scrollbar.scrollTop;
      if (!pos || opera) return; // Opera is difficult.
      if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
        operation(setCursor)(pos.line, pos.ch);

      var oldCSS = input.style.cssText;
      inputDiv.style.position = "absolute";
      input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
        "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; " +
        "border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
      leaveInputAlone = true;
      var val = input.value = getSelection();
      focusInput();
      selectInput(input);
      function rehide() {
        var newVal = splitLines(input.value).join("\n");
        if (newVal != val && !options.readOnly) operation(replaceSelection)(newVal, "end");
        inputDiv.style.position = "relative";
        input.style.cssText = oldCSS;
        if (ie_lt9) scrollbar.scrollTop = scrollPos;
        leaveInputAlone = false;
        resetInput(true);
        slowPoll();
      }

      if (gecko) {
        e_stop(e);
        var mouseup = connect(window, "mouseup", function() {
          mouseup();
          setTimeout(rehide, 20);
        }, true);
      } else {
        setTimeout(rehide, 50);
      }
    }

    // Cursor-blinking
    function restartBlink() {
      clearInterval(blinker);
      var on = true;
      cursor.style.visibility = "";
      blinker = setInterval(function() {
        cursor.style.visibility = (on = !on) ? "" : "hidden";
      }, 650);
    }

    var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
    function matchBrackets(autoclear) {
      var head = sel.inverted ? sel.from : sel.to, line = getLine(head.line), pos = head.ch - 1;
      var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
      if (!match) return;
      var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles;
      for (var off = pos + 1, i = 0, e = st.length; i < e; i+=2)
        if ((off -= st[i].length) <= 0) {var style = st[i+1]; break;}

      var stack = [line.text.charAt(pos)], re = /[(){}[\]]/;
      function scan(line, from, to) {
        if (!line.text) return;
        var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur;
        for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) {
          var text = st[i];
          if (st[i+1] != style) {pos += d * text.length; continue;}
          for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) {
            if (pos >= from && pos < to && re.test(cur = text.charAt(j))) {
              var match = matching[cur];
              if (match.charAt(1) == ">" == forward) stack.push(cur);
              else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false};
              else if (!stack.length) return {pos: pos, match: true};
            }
          }
        }
      }
      for (var i = head.line, e = forward ? Math.min(i + 100, doc.size) : Math.max(-1, i - 100); i != e; i+=d) {
        var line = getLine(i), first = i == head.line;
        var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length);
        if (found) break;
      }
      if (!found) found = {pos: null, match: false};
      var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
      var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style),
          two = found.pos != null && markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style);
      var clear = operation(function(){one.clear(); two && two.clear();});
      if (autoclear) setTimeout(clear, 800);
      else bracketHighlighted = clear;
    }

    // Finds the line to start with when starting a parse. Tries to
    // find a line with a stateAfter, so that it can start with a
    // valid state. If that fails, it returns the line with the
    // smallest indentation, which tends to need the least context to
    // parse correctly.
    function findStartLine(n) {
      var minindent, minline;
      for (var search = n, lim = n - 40; search > lim; --search) {
        if (search == 0) return 0;
        var line = getLine(search-1);
        if (line.stateAfter) return search;
        var indented = line.indentation(options.tabSize);
        if (minline == null || minindent > indented) {
          minline = search - 1;
          minindent = indented;
        }
      }
      return minline;
    }
    function getStateBefore(n) {
      var start = findStartLine(n), state = start && getLine(start-1).stateAfter;
      if (!state) state = startState(mode);
      else state = copyState(mode, state);
      doc.iter(start, n, function(line) {
        line.highlight(mode, state, options.tabSize);
        line.stateAfter = copyState(mode, state);
      });
      if (start < n) changes.push({from: start, to: n});
      if (n < doc.size && !getLine(n).stateAfter) work.push(n);
      return state;
    }
    function highlightLines(start, end) {
      var state = getStateBefore(start);
      doc.iter(start, end, function(line) {
        line.highlight(mode, state, options.tabSize);
        line.stateAfter = copyState(mode, state);
      });
    }
    function highlightWorker() {
      var end = +new Date + options.workTime;
      var foundWork = work.length;
      while (work.length) {
        if (!getLine(showingFrom).stateAfter) var task = showingFrom;
        else var task = work.pop();
        if (task >= doc.size) continue;
        var start = findStartLine(task), state = start && getLine(start-1).stateAfter;
        if (state) state = copyState(mode, state);
        else state = startState(mode);

        var unchanged = 0, compare = mode.compareStates, realChange = false,
            i = start, bail = false;
        doc.iter(i, doc.size, function(line) {
          var hadState = line.stateAfter;
          if (+new Date > end) {
            work.push(i);
            startWorker(options.workDelay);
            if (realChange) changes.push({from: task, to: i + 1});
            return (bail = true);
          }
          var changed = line.highlight(mode, state, options.tabSize);
          if (changed) realChange = true;
          line.stateAfter = copyState(mode, state);
          var done = null;
          if (compare) {
            var same = hadState && compare(hadState, state);
            if (same != Pass) done = !!same;
          }
          if (done == null) {
            if (changed !== false || !hadState) unchanged = 0;
            else if (++unchanged > 3 && (!mode.indent || mode.indent(hadState, "") == mode.indent(state, "")))
              done = true;
          }
          if (done) return true;
          ++i;
        });
        if (bail) return;
        if (realChange) changes.push({from: task, to: i + 1});
      }
      if (foundWork && options.onHighlightComplete)
        options.onHighlightComplete(instance);
    }
    function startWorker(time) {
      if (!work.length) return;
      highlight.set(time, operation(highlightWorker));
    }

    // Operations are used to wrap changes in such a way that each
    // change won't have to update the cursor and display (which would
    // be awkward, slow, and error-prone), but instead updates are
    // batched and then all combined and executed at once.
    function startOperation() {
      updateInput = userSelChange = textChanged = null;
      changes = []; selectionChanged = false; callbacks = [];
    }
    function endOperation() {
      if (updateMaxLine) computeMaxLength();
      if (maxLineChanged && !options.lineWrapping) {
        widthForcer.style.left = stringWidth(maxLine) + "px";
        maxLineChanged = false;
      }
      var newScrollPos, updated;
      if (selectionChanged) {
        var coords = calculateCursorCoords();
        newScrollPos = calculateScrollPos(coords.x, coords.y, coords.x, coords.yBot);
      }
      if (changes.length) updated = updateDisplay(changes, true, (newScrollPos ? newScrollPos.scrollTop : null));
      else {
        if (selectionChanged) updateSelection();
        if (gutterDirty) updateGutter();
      }
      if (newScrollPos) scrollCursorIntoView();
      if (selectionChanged) {scrollEditorIntoView(); restartBlink();}

      if (focused && !leaveInputAlone &&
          (updateInput === true || (updateInput !== false && selectionChanged)))
        resetInput(userSelChange);

      if (selectionChanged && options.matchBrackets)
        setTimeout(operation(function() {
          if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
          if (posEq(sel.from, sel.to)) matchBrackets(false);
        }), 20);
      var sc = selectionChanged, cbs = callbacks; // these can be reset by callbacks
      if (textChanged && options.onChange && instance)
        options.onChange(instance, textChanged);
      if (sc && options.onCursorActivity)
        options.onCursorActivity(instance);
      for (var i = 0; i < cbs.length; ++i) cbs[i](instance);
      if (updated && options.onUpdate) options.onUpdate(instance);
    }
    var nestedOperation = 0;
    function operation(f) {
      return function() {
        if (!nestedOperation++) startOperation();
        try {var result = f.apply(this, arguments);}
        finally {if (!--nestedOperation) endOperation();}
        return result;
      };
    }

    function compoundChange(f) {
      history.startCompound();
      try { return f(); } finally { history.endCompound(); }
    }

    for (var ext in extensions)
      if (extensions.propertyIsEnumerable(ext) &&
          !instance.propertyIsEnumerable(ext))
        instance[ext] = extensions[ext];
    return instance;
  } // (end of function CodeMirror)

  // The default configuration options.
  CodeMirror.defaults = {
    value: "",
    mode: null,
    theme: "default",
    indentUnit: 2,
    indentWithTabs: false,
    smartIndent: true,
    tabSize: 4,
    keyMap: "default",
    extraKeys: null,
    electricChars: true,
    autoClearEmptyLines: false,
    onKeyEvent: null,
    onDragEvent: null,
    lineWrapping: false,
    lineNumbers: false,
    gutter: false,
    fixedGutter: false,
    firstLineNumber: 1,
    readOnly: false,
    dragDrop: true,
    onChange: null,
    onCursorActivity: null,
    onGutterClick: null,
    onHighlightComplete: null,
    onUpdate: null,
    onFocus: null, onBlur: null, onScroll: null,
    matchBrackets: false,
    workTime: 100,
    workDelay: 200,
    pollInterval: 100,
    undoDepth: 40,
    tabindex: null,
    autofocus: null
  };

  var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
  var mac = ios || /Mac/.test(navigator.platform);
  var win = /Win/.test(navigator.platform);

  // Known modes, by name and by MIME
  var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
  CodeMirror.defineMode = function(name, mode) {
    if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
    if (arguments.length > 2) {
      mode.dependencies = [];
      for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
    }
    modes[name] = mode;
  };
  CodeMirror.defineMIME = function(mime, spec) {
    mimeModes[mime] = spec;
  };
  CodeMirror.resolveMode = function(spec) {
    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
      spec = mimeModes[spec];
    else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec))
      return CodeMirror.resolveMode("application/xml");
    if (typeof spec == "string") return {name: spec};
    else return spec || {name: "null"};
  };
  CodeMirror.getMode = function(options, spec) {
    var spec = CodeMirror.resolveMode(spec);
    var mfactory = modes[spec.name];
    if (!mfactory) return CodeMirror.getMode(options, "text/plain");
    return mfactory(options, spec);
  };
  CodeMirror.listModes = function() {
    var list = [];
    for (var m in modes)
      if (modes.propertyIsEnumerable(m)) list.push(m);
    return list;
  };
  CodeMirror.listMIMEs = function() {
    var list = [];
    for (var m in mimeModes)
      if (mimeModes.propertyIsEnumerable(m)) list.push({mime: m, mode: mimeModes[m]});
    return list;
  };

  var extensions = CodeMirror.extensions = {};
  CodeMirror.defineExtension = function(name, func) {
    extensions[name] = func;
  };

  var commands = CodeMirror.commands = {
    selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},
    killLine: function(cm) {
      var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
      if (!sel && cm.getLine(from.line).length == from.ch) cm.replaceRange("", from, {line: from.line + 1, ch: 0});
      else cm.replaceRange("", from, sel ? to : {line: from.line});
    },
    deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});},
    undo: function(cm) {cm.undo();},
    redo: function(cm) {cm.redo();},
    goDocStart: function(cm) {cm.setCursor(0, 0, true);},
    goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},
    goLineStart: function(cm) {cm.setCursor(cm.getCursor().line, 0, true);},
    goLineStartSmart: function(cm) {
      var cur = cm.getCursor();
      var text = cm.getLine(cur.line), firstNonWS = Math.max(0, text.search(/\S/));
      cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);
    },
    goLineEnd: function(cm) {cm.setSelection({line: cm.getCursor().line}, null, true);},
    goLineUp: function(cm) {cm.moveV(-1, "line");},
    goLineDown: function(cm) {cm.moveV(1, "line");},
    goPageUp: function(cm) {cm.moveV(-1, "page");},
    goPageDown: function(cm) {cm.moveV(1, "page");},
    goCharLeft: function(cm) {cm.moveH(-1, "char");},
    goCharRight: function(cm) {cm.moveH(1, "char");},
    goColumnLeft: function(cm) {cm.moveH(-1, "column");},
    goColumnRight: function(cm) {cm.moveH(1, "column");},
    goWordLeft: function(cm) {cm.moveH(-1, "word");},
    goWordRight: function(cm) {cm.moveH(1, "word");},
    delCharLeft: function(cm) {cm.deleteH(-1, "char");},
    delCharRight: function(cm) {cm.deleteH(1, "char");},
    delWordLeft: function(cm) {cm.deleteH(-1, "word");},
    delWordRight: function(cm) {cm.deleteH(1, "word");},
    indentAuto: function(cm) {cm.indentSelection("smart");},
    indentMore: function(cm) {cm.indentSelection("add");},
    indentLess: function(cm) {cm.indentSelection("subtract");},
    insertTab: function(cm) {cm.replaceSelection("\t", "end");},
    defaultTab: function(cm) {
      if (cm.somethingSelected()) cm.indentSelection("add");
      else cm.replaceSelection("\t", "end");
    },
    transposeChars: function(cm) {
      var cur = cm.getCursor(), line = cm.getLine(cur.line);
      if (cur.ch > 0 && cur.ch < line.length - 1)
        cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
                        {line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});
    },
    newlineAndIndent: function(cm) {
      cm.replaceSelection("\n", "end");
      cm.indentLine(cm.getCursor().line);
    },
    toggleOverwrite: function(cm) {cm.toggleOverwrite();}
  };

  var keyMap = CodeMirror.keyMap = {};
  keyMap.basic = {
    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
    "Delete": "delCharRight", "Backspace": "delCharLeft", "Tab": "defaultTab", "Shift-Tab": "indentAuto",
    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
  };
  // Note that the save and find-related commands aren't defined by
  // default. Unknown commands are simply ignored.
  keyMap.pcDefault = {
    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
    "Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
    "Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
    "Ctrl-Backspace": "delWordLeft", "Ctrl-Delete": "delWordRight", "Ctrl-S": "save", "Ctrl-F": "find",
    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
    fallthrough: "basic"
  };
  keyMap.macDefault = {
    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
    "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft",
    "Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordLeft",
    "Ctrl-Alt-Backspace": "delWordRight", "Alt-Delete": "delWordRight", "Cmd-S": "save", "Cmd-F": "find",
    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
    "Cmd-[": "indentLess", "Cmd-]": "indentMore",
    fallthrough: ["basic", "emacsy"]
  };
  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
  keyMap.emacsy = {
    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
    "Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharRight", "Ctrl-H": "delCharLeft",
    "Alt-D": "delWordRight", "Alt-Backspace": "delWordLeft", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
  };

  function getKeyMap(val) {
    if (typeof val == "string") return keyMap[val];
    else return val;
  }
  function lookupKey(name, extraMap, map, handle, stop) {
    function lookup(map) {
      map = getKeyMap(map);
      var found = map[name];
      if (found != null && handle(found)) return true;
      if (map.nofallthrough) {
        if (stop) stop();
        return true;
      }
      var fallthrough = map.fallthrough;
      if (fallthrough == null) return false;
      if (Object.prototype.toString.call(fallthrough) != "[object Array]")
        return lookup(fallthrough);
      for (var i = 0, e = fallthrough.length; i < e; ++i) {
        if (lookup(fallthrough[i])) return true;
      }
      return false;
    }
    if (extraMap && lookup(extraMap)) return true;
    return lookup(map);
  }
  function isModifierKey(event) {
    var name = keyNames[e_prop(event, "keyCode")];
    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
  }

  CodeMirror.fromTextArea = function(textarea, options) {
    if (!options) options = {};
    options.value = textarea.value;
    if (!options.tabindex && textarea.tabindex)
      options.tabindex = textarea.tabindex;
    if (options.autofocus == null && textarea.getAttribute("autofocus") != null)
      options.autofocus = true;

    function save() {textarea.value = instance.getValue();}
    if (textarea.form) {
      // Deplorable hack to make the submit method do the right thing.
      var rmSubmit = connect(textarea.form, "submit", save, true);
      if (typeof textarea.form.submit == "function") {
        var realSubmit = textarea.form.submit;
        function wrappedSubmit() {
          save();
          textarea.form.submit = realSubmit;
          textarea.form.submit();
          textarea.form.submit = wrappedSubmit;
        }
        textarea.form.submit = wrappedSubmit;
      }
    }

    textarea.style.display = "none";
    var instance = CodeMirror(function(node) {
      textarea.parentNode.insertBefore(node, textarea.nextSibling);
    }, options);
    instance.save = save;
    instance.getTextArea = function() { return textarea; };
    instance.toTextArea = function() {
      save();
      textarea.parentNode.removeChild(instance.getWrapperElement());
      textarea.style.display = "";
      if (textarea.form) {
        rmSubmit();
        if (typeof textarea.form.submit == "function")
          textarea.form.submit = realSubmit;
      }
    };
    return instance;
  };

  // Utility functions for working with state. Exported because modes
  // sometimes need to do this.
  function copyState(mode, state) {
    if (state === true) return state;
    if (mode.copyState) return mode.copyState(state);
    var nstate = {};
    for (var n in state) {
      var val = state[n];
      if (val instanceof Array) val = val.concat([]);
      nstate[n] = val;
    }
    return nstate;
  }
  CodeMirror.copyState = copyState;
  function startState(mode, a1, a2) {
    return mode.startState ? mode.startState(a1, a2) : true;
  }
  CodeMirror.startState = startState;

  // The character stream used by a mode's parser.
  function StringStream(string, tabSize) {
    this.pos = this.start = 0;
    this.string = string;
    this.tabSize = tabSize || 8;
  }
  StringStream.prototype = {
    eol: function() {return this.pos >= this.string.length;},
    sol: function() {return this.pos == 0;},
    peek: function() {return this.string.charAt(this.pos);},
    next: function() {
      if (this.pos < this.string.length)
        return this.string.charAt(this.pos++);
    },
    eat: function(match) {
      var ch = this.string.charAt(this.pos);
      if (typeof match == "string") var ok = ch == match;
      else var ok = ch && (match.test ? match.test(ch) : match(ch));
      if (ok) {++this.pos; return ch;}
    },
    eatWhile: function(match) {
      var start = this.pos;
      while (this.eat(match)){}
      return this.pos > start;
    },
    eatSpace: function() {
      var start = this.pos;
      while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
      return this.pos > start;
    },
    skipToEnd: function() {this.pos = this.string.length;},
    skipTo: function(ch) {
      var found = this.string.indexOf(ch, this.pos);
      if (found > -1) {this.pos = found; return true;}
    },
    backUp: function(n) {this.pos -= n;},
    column: function() {return countColumn(this.string, this.start, this.tabSize);},
    indentation: function() {return countColumn(this.string, null, this.tabSize);},
    match: function(pattern, consume, caseInsensitive) {
      if (typeof pattern == "string") {
        function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
        if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
          if (consume !== false) this.pos += pattern.length;
          return true;
        }
      } else {
        var match = this.string.slice(this.pos).match(pattern);
        if (match && consume !== false) this.pos += match[0].length;
        return match;
      }
    },
    current: function(){return this.string.slice(this.start, this.pos);}
  };
  CodeMirror.StringStream = StringStream;

  function MarkedText(from, to, className, marker) {
    this.from = from; this.to = to; this.style = className; this.marker = marker;
  }
  MarkedText.prototype = {
    attach: function(line) { this.marker.set.push(line); },
    detach: function(line) {
      var ix = indexOf(this.marker.set, line);
      if (ix > -1) this.marker.set.splice(ix, 1);
    },
    split: function(pos, lenBefore) {
      if (this.to <= pos && this.to != null) return null;
      var from = this.from < pos || this.from == null ? null : this.from - pos + lenBefore;
      var to = this.to == null ? null : this.to - pos + lenBefore;
      return new MarkedText(from, to, this.style, this.marker);
    },
    dup: function() { return new MarkedText(null, null, this.style, this.marker); },
    clipTo: function(fromOpen, from, toOpen, to, diff) {
      if (fromOpen && to > this.from && (to < this.to || this.to == null))
        this.from = null;
      else if (this.from != null && this.from >= from)
        this.from = Math.max(to, this.from) + diff;
      if (toOpen && (from < this.to || this.to == null) && (from > this.from || this.from == null))
        this.to = null;
      else if (this.to != null && this.to > from)
        this.to = to < this.to ? this.to + diff : from;
    },
    isDead: function() { return this.from != null && this.to != null && this.from >= this.to; },
    sameSet: function(x) { return this.marker == x.marker; }
  };

  function Bookmark(pos) {
    this.from = pos; this.to = pos; this.line = null;
  }
  Bookmark.prototype = {
    attach: function(line) { this.line = line; },
    detach: function(line) { if (this.line == line) this.line = null; },
    split: function(pos, lenBefore) {
      if (pos < this.from) {
        this.from = this.to = (this.from - pos) + lenBefore;
        return this;
      }
    },
    isDead: function() { return this.from > this.to; },
    clipTo: function(fromOpen, from, toOpen, to, diff) {
      if ((fromOpen || from < this.from) && (toOpen || to > this.to)) {
        this.from = 0; this.to = -1;
      } else if (this.from > from) {
        this.from = this.to = Math.max(to, this.from) + diff;
      }
    },
    sameSet: function(x) { return false; },
    find: function() {
      if (!this.line || !this.line.parent) return null;
      return {line: lineNo(this.line), ch: this.from};
    },
    clear: function() {
      if (this.line) {
        var found = indexOf(this.line.marked, this);
        if (found != -1) this.line.marked.splice(found, 1);
        this.line = null;
      }
    }
  };

  // Line objects. These hold state related to a line, including
  // highlighting info (the styles array).
  function Line(text, styles) {
    this.styles = styles || [text, null];
    this.text = text;
    this.height = 1;
    this.marked = this.gutterMarker = this.className = this.bgClassName = this.handlers = null;
    this.stateAfter = this.parent = this.hidden = null;
  }
  Line.inheritMarks = function(text, orig) {
    var ln = new Line(text), mk = orig && orig.marked;
    if (mk) {
      for (var i = 0; i < mk.length; ++i) {
        if (mk[i].to == null && mk[i].style) {
          var newmk = ln.marked || (ln.marked = []), mark = mk[i];
          var nmark = mark.dup(); newmk.push(nmark); nmark.attach(ln);
        }
      }
    }
    return ln;
  }
  Line.prototype = {
    // Replace a piece of a line, keeping the styles around it intact.
    replace: function(from, to_, text) {
      var st = [], mk = this.marked, to = to_ == null ? this.text.length : to_;
      copyStyles(0, from, this.styles, st);
      if (text) st.push(text, null);
      copyStyles(to, this.text.length, this.styles, st);
      this.styles = st;
      this.text = this.text.slice(0, from) + text + this.text.slice(to);
      this.stateAfter = null;
      if (mk) {
        var diff = text.length - (to - from);
        for (var i = 0; i < mk.length; ++i) {
          var mark = mk[i];
          mark.clipTo(from == null, from || 0, to_ == null, to, diff);
          if (mark.isDead()) {mark.detach(this); mk.splice(i--, 1);}
        }
      }
    },
    // Split a part off a line, keeping styles and markers intact.
    split: function(pos, textBefore) {
      var st = [textBefore, null], mk = this.marked;
      copyStyles(pos, this.text.length, this.styles, st);
      var taken = new Line(textBefore + this.text.slice(pos), st);
      if (mk) {
        for (var i = 0; i < mk.length; ++i) {
          var mark = mk[i];
          var newmark = mark.split(pos, textBefore.length);
          if (newmark) {
            if (!taken.marked) taken.marked = [];
            taken.marked.push(newmark); newmark.attach(taken);
            if (newmark == mark) mk.splice(i--, 1);
          }
        }
      }
      return taken;
    },
    append: function(line) {
      var mylen = this.text.length, mk = line.marked, mymk = this.marked;
      this.text += line.text;
      copyStyles(0, line.text.length, line.styles, this.styles);
      if (mymk) {
        for (var i = 0; i < mymk.length; ++i)
          if (mymk[i].to == null) mymk[i].to = mylen;
      }
      if (mk && mk.length) {
        if (!mymk) this.marked = mymk = [];
        outer: for (var i = 0; i < mk.length; ++i) {
          var mark = mk[i];
          if (!mark.from) {
            for (var j = 0; j < mymk.length; ++j) {
              var mymark = mymk[j];
              if (mymark.to == mylen && mymark.sameSet(mark)) {
                mymark.to = mark.to == null ? null : mark.to + mylen;
                if (mymark.isDead()) {
                  mymark.detach(this);
                  mk.splice(i--, 1);
                }
                continue outer;
              }
            }
          }
          mymk.push(mark);
          mark.attach(this);
          mark.from += mylen;
          if (mark.to != null) mark.to += mylen;
        }
      }
    },
    fixMarkEnds: function(other) {
      var mk = this.marked, omk = other.marked;
      if (!mk) return;
      for (var i = 0; i < mk.length; ++i) {
        var mark = mk[i], close = mark.to == null;
        if (close && omk) {
          for (var j = 0; j < omk.length; ++j)
            if (omk[j].sameSet(mark)) {close = false; break;}
        }
        if (close) mark.to = this.text.length;
      }
    },
    fixMarkStarts: function() {
      var mk = this.marked;
      if (!mk) return;
      for (var i = 0; i < mk.length; ++i)
        if (mk[i].from == null) mk[i].from = 0;
    },
    addMark: function(mark) {
      mark.attach(this);
      if (this.marked == null) this.marked = [];
      this.marked.push(mark);
      this.marked.sort(function(a, b){return (a.from || 0) - (b.from || 0);});
    },
    // Run the given mode's parser over a line, update the styles
    // array, which contains alternating fragments of text and CSS
    // classes.
    highlight: function(mode, state, tabSize) {
      var stream = new StringStream(this.text, tabSize), st = this.styles, pos = 0;
      var changed = false, curWord = st[0], prevWord;
      if (this.text == "" && mode.blankLine) mode.blankLine(state);
      while (!stream.eol()) {
        var style = mode.token(stream, state);
        var substr = this.text.slice(stream.start, stream.pos);
        stream.start = stream.pos;
        if (pos && st[pos-1] == style)
          st[pos-2] += substr;
        else if (substr) {
          if (!changed && (st[pos+1] != style || (pos && st[pos-2] != prevWord))) changed = true;
          st[pos++] = substr; st[pos++] = style;
          prevWord = curWord; curWord = st[pos];
        }
        // Give up when line is ridiculously long
        if (stream.pos > 5000) {
          st[pos++] = this.text.slice(stream.pos); st[pos++] = null;
          break;
        }
      }
      if (st.length != pos) {st.length = pos; changed = true;}
      if (pos && st[pos-2] != prevWord) changed = true;
      // Short lines with simple highlights return null, and are
      // counted as changed by the driver because they are likely to
      // highlight the same way in various contexts.
      return changed || (st.length < 5 && this.text.length < 10 ? null : false);
    },
    // Fetch the parser token for a given character. Useful for hacks
    // that want to inspect the mode state (say, for completion).
    getTokenAt: function(mode, state, ch) {
      var txt = this.text, stream = new StringStream(txt);
      while (stream.pos < ch && !stream.eol()) {
        stream.start = stream.pos;
        var style = mode.token(stream, state);
      }
      return {start: stream.start,
              end: stream.pos,
              string: stream.current(),
              className: style || null,
              state: state};
    },
    indentation: function(tabSize) {return countColumn(this.text, null, tabSize);},
    // Produces an HTML fragment for the line, taking selection,
    // marking, and highlighting into account.
    getHTML: function(makeTab, wrapAt, wrapId, wrapWBR) {
      var html = [], first = true, col = 0;
      function span_(text, style) {
        if (!text) return;
        // Work around a bug where, in some compat modes, IE ignores leading spaces
        if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
        first = false;
        if (text.indexOf("\t") == -1) {
          col += text.length;
          var escaped = htmlEscape(text);
        } else {
          var escaped = "";
          for (var pos = 0;;) {
            var idx = text.indexOf("\t", pos);
            if (idx == -1) {
              escaped += htmlEscape(text.slice(pos));
              col += text.length - pos;
              break;
            } else {
              col += idx - pos;
              var tab = makeTab(col);
              escaped += htmlEscape(text.slice(pos, idx)) + tab.html;
              col += tab.width;
              pos = idx + 1;
            }
          }
        }
        if (style) html.push('', escaped, "");
        else html.push(escaped);
      }
      var span = span_;
      if (wrapAt != null) {
        var outPos = 0, open = "";
        span = function(text, style) {
          var l = text.length;
          if (wrapAt >= outPos && wrapAt < outPos + l) {
            if (wrapAt > outPos) {
              span_(text.slice(0, wrapAt - outPos), style);
              // See comment at the definition of spanAffectsWrapping
              if (wrapWBR) html.push("");
            }
            html.push(open);
            var cut = wrapAt - outPos;
            span_(opera ? text.slice(cut, cut + 1) : text.slice(cut), style);
            html.push("");
            if (opera) span_(text.slice(cut + 1), style);
            wrapAt--;
            outPos += l;
          } else {
            outPos += l;
            span_(text, style);
            // Output empty wrapper when at end of line
            if (outPos == wrapAt && outPos == len) html.push(open + " ");
            // Stop outputting HTML when gone sufficiently far beyond measure
            else if (outPos > wrapAt + 10 && /\s/.test(text)) span = function(){};
          }
        }
      }

      var st = this.styles, allText = this.text, marked = this.marked;
      var len = allText.length;
      function styleToClass(style) {
        if (!style) return null;
        return "cm-" + style.replace(/ +/g, " cm-");
      }

      if (!allText && wrapAt == null) {
        span(" ");
      } else if (!marked || !marked.length) {
        for (var i = 0, ch = 0; ch < len; i+=2) {
          var str = st[i], style = st[i+1], l = str.length;
          if (ch + l > len) str = str.slice(0, len - ch);
          ch += l;
          span(str, styleToClass(style));
        }
      } else {
        var pos = 0, i = 0, text = "", style, sg = 0;
        var nextChange = marked[0].from || 0, marks = [], markpos = 0;
        function advanceMarks() {
          var m;
          while (markpos < marked.length &&
                 ((m = marked[markpos]).from == pos || m.from == null)) {
            if (m.style != null) marks.push(m);
            ++markpos;
          }
          nextChange = markpos < marked.length ? marked[markpos].from : Infinity;
          for (var i = 0; i < marks.length; ++i) {
            var to = marks[i].to || Infinity;
            if (to == pos) marks.splice(i--, 1);
            else nextChange = Math.min(to, nextChange);
          }
        }
        var m = 0;
        while (pos < len) {
          if (nextChange == pos) advanceMarks();
          var upto = Math.min(len, nextChange);
          while (true) {
            if (text) {
              var end = pos + text.length;
              var appliedStyle = style;
              for (var j = 0; j < marks.length; ++j)
                appliedStyle = (appliedStyle ? appliedStyle + " " : "") + marks[j].style;
              span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
              if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
              pos = end;
            }
            text = st[i++]; style = styleToClass(st[i++]);
          }
        }
      }
      return html.join("");
    },
    cleanUp: function() {
      this.parent = null;
      if (this.marked)
        for (var i = 0, e = this.marked.length; i < e; ++i) this.marked[i].detach(this);
    }
  };
  // Utility used by replace and split above
  function copyStyles(from, to, source, dest) {
    for (var i = 0, pos = 0, state = 0; pos < to; i+=2) {
      var part = source[i], end = pos + part.length;
      if (state == 0) {
        if (end > from) dest.push(part.slice(from - pos, Math.min(part.length, to - pos)), source[i+1]);
        if (end >= from) state = 1;
      } else if (state == 1) {
        if (end > to) dest.push(part.slice(0, to - pos), source[i+1]);
        else dest.push(part, source[i+1]);
      }
      pos = end;
    }
  }

  // Data structure that holds the sequence of lines.
  function LeafChunk(lines) {
    this.lines = lines;
    this.parent = null;
    for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
      lines[i].parent = this;
      height += lines[i].height;
    }
    this.height = height;
  }
  LeafChunk.prototype = {
    chunkSize: function() { return this.lines.length; },
    remove: function(at, n, callbacks) {
      for (var i = at, e = at + n; i < e; ++i) {
        var line = this.lines[i];
        this.height -= line.height;
        line.cleanUp();
        if (line.handlers)
          for (var j = 0; j < line.handlers.length; ++j) callbacks.push(line.handlers[j]);
      }
      this.lines.splice(at, n);
    },
    collapse: function(lines) {
      lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
    },
    insertHeight: function(at, lines, height) {
      this.height += height;
      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
      for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
    },
    iterN: function(at, n, op) {
      for (var e = at + n; at < e; ++at)
        if (op(this.lines[at])) return true;
    }
  };
  function BranchChunk(children) {
    this.children = children;
    var size = 0, height = 0;
    for (var i = 0, e = children.length; i < e; ++i) {
      var ch = children[i];
      size += ch.chunkSize(); height += ch.height;
      ch.parent = this;
    }
    this.size = size;
    this.height = height;
    this.parent = null;
  }
  BranchChunk.prototype = {
    chunkSize: function() { return this.size; },
    remove: function(at, n, callbacks) {
      this.size -= n;
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var rm = Math.min(n, sz - at), oldHeight = child.height;
          child.remove(at, rm, callbacks);
          this.height -= oldHeight - child.height;
          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
          if ((n -= rm) == 0) break;
          at = 0;
        } else at -= sz;
      }
      if (this.size - n < 25) {
        var lines = [];
        this.collapse(lines);
        this.children = [new LeafChunk(lines)];
        this.children[0].parent = this;
      }
    },
    collapse: function(lines) {
      for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
    },
    insert: function(at, lines) {
      var height = 0;
      for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
      this.insertHeight(at, lines, height);
    },
    insertHeight: function(at, lines, height) {
      this.size += lines.length;
      this.height += height;
      for (var i = 0, e = this.children.length; i < e; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at <= sz) {
          child.insertHeight(at, lines, height);
          if (child.lines && child.lines.length > 50) {
            while (child.lines.length > 50) {
              var spilled = child.lines.splice(child.lines.length - 25, 25);
              var newleaf = new LeafChunk(spilled);
              child.height -= newleaf.height;
              this.children.splice(i + 1, 0, newleaf);
              newleaf.parent = this;
            }
            this.maybeSpill();
          }
          break;
        }
        at -= sz;
      }
    },
    maybeSpill: function() {
      if (this.children.length <= 10) return;
      var me = this;
      do {
        var spilled = me.children.splice(me.children.length - 5, 5);
        var sibling = new BranchChunk(spilled);
        if (!me.parent) { // Become the parent node
          var copy = new BranchChunk(me.children);
          copy.parent = me;
          me.children = [copy, sibling];
          me = copy;
        } else {
          me.size -= sibling.size;
          me.height -= sibling.height;
          var myIndex = indexOf(me.parent.children, me);
          me.parent.children.splice(myIndex + 1, 0, sibling);
        }
        sibling.parent = me.parent;
      } while (me.children.length > 10);
      me.parent.maybeSpill();
    },
    iter: function(from, to, op) { this.iterN(from, to - from, op); },
    iterN: function(at, n, op) {
      for (var i = 0, e = this.children.length; i < e; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var used = Math.min(n, sz - at);
          if (child.iterN(at, used, op)) return true;
          if ((n -= used) == 0) break;
          at = 0;
        } else at -= sz;
      }
    }
  };

  function getLineAt(chunk, n) {
    while (!chunk.lines) {
      for (var i = 0;; ++i) {
        var child = chunk.children[i], sz = child.chunkSize();
        if (n < sz) { chunk = child; break; }
        n -= sz;
      }
    }
    return chunk.lines[n];
  }
  function lineNo(line) {
    if (line.parent == null) return null;
    var cur = line.parent, no = indexOf(cur.lines, line);
    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
      for (var i = 0, e = chunk.children.length; ; ++i) {
        if (chunk.children[i] == cur) break;
        no += chunk.children[i].chunkSize();
      }
    }
    return no;
  }
  function lineAtHeight(chunk, h) {
    var n = 0;
    outer: do {
      for (var i = 0, e = chunk.children.length; i < e; ++i) {
        var child = chunk.children[i], ch = child.height;
        if (h < ch) { chunk = child; continue outer; }
        h -= ch;
        n += child.chunkSize();
      }
      return n;
    } while (!chunk.lines);
    for (var i = 0, e = chunk.lines.length; i < e; ++i) {
      var line = chunk.lines[i], lh = line.height;
      if (h < lh) break;
      h -= lh;
    }
    return n + i;
  }
  function heightAtLine(chunk, n) {
    var h = 0;
    outer: do {
      for (var i = 0, e = chunk.children.length; i < e; ++i) {
        var child = chunk.children[i], sz = child.chunkSize();
        if (n < sz) { chunk = child; continue outer; }
        n -= sz;
        h += child.height;
      }
      return h;
    } while (!chunk.lines);
    for (var i = 0; i < n; ++i) h += chunk.lines[i].height;
    return h;
  }

  // The history object 'chunks' changes that are made close together
  // and at almost the same time into bigger undoable units.
  function History() {
    this.time = 0;
    this.done = []; this.undone = [];
    this.compound = 0;
    this.closed = false;
  }
  History.prototype = {
    addChange: function(start, added, old) {
      this.undone.length = 0;
      var time = +new Date, cur = this.done[this.done.length - 1], last = cur && cur[cur.length - 1];
      var dtime = time - this.time;

      if (this.compound && cur && !this.closed) {
        cur.push({start: start, added: added, old: old});
      } else if (dtime > 400 || !last || this.closed ||
                 last.start > start + old.length || last.start + last.added < start) {
        this.done.push([{start: start, added: added, old: old}]);
        this.closed = false;
      } else {
        var startBefore = Math.max(0, last.start - start),
            endAfter = Math.max(0, (start + old.length) - (last.start + last.added));
        for (var i = startBefore; i > 0; --i) last.old.unshift(old[i - 1]);
        for (var i = endAfter; i > 0; --i) last.old.push(old[old.length - i]);
        if (startBefore) last.start = start;
        last.added += added - (old.length - startBefore - endAfter);
      }
      this.time = time;
    },
    startCompound: function() {
      if (!this.compound++) this.closed = true;
    },
    endCompound: function() {
      if (!--this.compound) this.closed = true;
    }
  };

  function stopMethod() {e_stop(this);}
  // Ensure an event has a stop method.
  function addStop(event) {
    if (!event.stop) event.stop = stopMethod;
    return event;
  }

  function e_preventDefault(e) {
    if (e.preventDefault) e.preventDefault();
    else e.returnValue = false;
  }
  function e_stopPropagation(e) {
    if (e.stopPropagation) e.stopPropagation();
    else e.cancelBubble = true;
  }
  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
  CodeMirror.e_stop = e_stop;
  CodeMirror.e_preventDefault = e_preventDefault;
  CodeMirror.e_stopPropagation = e_stopPropagation;

  function e_target(e) {return e.target || e.srcElement;}
  function e_button(e) {
    if (e.which) return e.which;
    else if (e.button & 1) return 1;
    else if (e.button & 2) return 3;
    else if (e.button & 4) return 2;
  }

  // Allow 3rd-party code to override event properties by adding an override
  // object to an event object.
  function e_prop(e, prop) {
    var overridden = e.override && e.override.hasOwnProperty(prop);
    return overridden ? e.override[prop] : e[prop];
  }

  // Event handler registration. If disconnect is true, it'll return a
  // function that unregisters the handler.
  function connect(node, type, handler, disconnect) {
    if (typeof node.addEventListener == "function") {
      node.addEventListener(type, handler, false);
      if (disconnect) return function() {node.removeEventListener(type, handler, false);};
    } else {
      var wrapHandler = function(event) {handler(event || window.event);};
      node.attachEvent("on" + type, wrapHandler);
      if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
    }
  }
  CodeMirror.connect = connect;

  function Delayed() {this.id = null;}
  Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};

  var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};

  var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
  var ie = /MSIE \d/.test(navigator.userAgent);
  var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
  var ie_lt9 = /MSIE [1-8]\b/.test(navigator.userAgent);
  var quirksMode = ie && document.documentMode == 5;
  var webkit = /WebKit\//.test(navigator.userAgent);
  var chrome = /Chrome\//.test(navigator.userAgent);
  var opera = /Opera\//.test(navigator.userAgent);
  var safari = /Apple Computer/.test(navigator.vendor);
  var khtml = /KHTML\//.test(navigator.userAgent);
  var mac_geLion = /Mac OS X 10\D([7-9]|\d\d)\D/.test(navigator.userAgent);

  // Detect drag-and-drop
  var dragAndDrop = function() {
    // There is *some* kind of drag-and-drop support in IE6-8, but I
    // couldn't get it to work yet.
    if (ie_lt9) return false;
    var div = document.createElement('div');
    return "draggable" in div || "dragDrop" in div;
  }();

  // Feature-detect whether newlines in textareas are converted to \r\n
  var lineSep = function () {
    var te = document.createElement("textarea");
    te.value = "foo\nbar";
    if (te.value.indexOf("\r") > -1) return "\r\n";
    return "\n";
  }();

  // For a reason I have yet to figure out, some browsers disallow
  // word wrapping between certain characters *only* if a new inline
  // element is started between them. This makes it hard to reliably
  // measure the position of things, since that requires inserting an
  // extra span. This terribly fragile set of regexps matches the
  // character combinations that suffer from this phenomenon on the
  // various browsers.
  var spanAffectsWrapping = /^$/; // Won't match any two-character string
  if (gecko) spanAffectsWrapping = /$'/;
  else if (safari) spanAffectsWrapping = /\-[^ \-?]|\?[^ !'\"\),.\-\/:;\?\]\}]/;
  else if (chrome) spanAffectsWrapping = /\-[^ \-\.?]|\?[^ \-\.?\]\}:;!'\"\),\/]|[\.!\"#&%\)*+,:;=>\]|\}~][\(\{\[<]|\$'/;

  // Counts the column offset in a string, taking tabs into account.
  // Used mostly to find indentation.
  function countColumn(string, end, tabSize) {
    if (end == null) {
      end = string.search(/[^\s\u00a0]/);
      if (end == -1) end = string.length;
    }
    for (var i = 0, n = 0; i < end; ++i) {
      if (string.charAt(i) == "\t") n += tabSize - (n % tabSize);
      else ++n;
    }
    return n;
  }

  function computedStyle(elt) {
    if (elt.currentStyle) return elt.currentStyle;
    return window.getComputedStyle(elt, null);
  }

  // Find the position of an element by following the offsetParent chain.
  // If screen==true, it returns screen (rather than page) coordinates.
  function eltOffset(node, screen) {
    var bod = node.ownerDocument.body;
    var x = 0, y = 0, skipBody = false;
    for (var n = node; n; n = n.offsetParent) {
      var ol = n.offsetLeft, ot = n.offsetTop;
      // Firefox reports weird inverted offsets when the body has a border.
      if (n == bod) { x += Math.abs(ol); y += Math.abs(ot); }
      else { x += ol, y += ot; }
      if (screen && computedStyle(n).position == "fixed")
        skipBody = true;
    }
    var e = screen && !skipBody ? null : bod;
    for (var n = node.parentNode; n != e; n = n.parentNode)
      if (n.scrollLeft != null) { x -= n.scrollLeft; y -= n.scrollTop;}
    return {left: x, top: y};
  }
  // Use the faster and saner getBoundingClientRect method when possible.
  if (document.documentElement.getBoundingClientRect != null) eltOffset = function(node, screen) {
    // Take the parts of bounding client rect that we are interested in so we are able to edit if need be,
    // since the returned value cannot be changed externally (they are kept in sync as the element moves within the page)
    try { var box = node.getBoundingClientRect(); box = { top: box.top, left: box.left }; }
    catch(e) { box = {top: 0, left: 0}; }
    if (!screen) {
      // Get the toplevel scroll, working around browser differences.
      if (window.pageYOffset == null) {
        var t = document.documentElement || document.body.parentNode;
        if (t.scrollTop == null) t = document.body;
        box.top += t.scrollTop; box.left += t.scrollLeft;
      } else {
        box.top += window.pageYOffset; box.left += window.pageXOffset;
      }
    }
    return box;
  };

  // Get a node's text content.
  function eltText(node) {
    return node.textContent || node.innerText || node.nodeValue || "";
  }
  function selectInput(node) {
    if (ios) { // Mobile Safari apparently has a bug where select() is broken.
      node.selectionStart = 0;
      node.selectionEnd = node.value.length;
    } else node.select();
  }

  // Operations on {line, ch} objects.
  function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
  function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}
  function copyPos(x) {return {line: x.line, ch: x.ch};}

  var escapeElement = document.createElement("pre");
  function htmlEscape(str) {
    escapeElement.textContent = str;
    return escapeElement.innerHTML;
  }
  // Recent (late 2011) Opera betas insert bogus newlines at the start
  // of the textContent, so we strip those.
  if (htmlEscape("a") == "\na") {
    htmlEscape = function(str) {
      escapeElement.textContent = str;
      return escapeElement.innerHTML.slice(1);
    };
  // Some IEs don't preserve tabs through innerHTML
  } else if (htmlEscape("\t") != "\t") {
    htmlEscape = function(str) {
      escapeElement.innerHTML = "";
      escapeElement.appendChild(document.createTextNode(str));
      return escapeElement.innerHTML;
    };
  }
  CodeMirror.htmlEscape = htmlEscape;

  // Used to position the cursor after an undo/redo by finding the
  // last edited character.
  function editEnd(from, to) {
    if (!to) return 0;
    if (!from) return to.length;
    for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)
      if (from.charAt(i) != to.charAt(j)) break;
    return j + 1;
  }

  function indexOf(collection, elt) {
    if (collection.indexOf) return collection.indexOf(elt);
    for (var i = 0, e = collection.length; i < e; ++i)
      if (collection[i] == elt) return i;
    return -1;
  }
  function isWordChar(ch) {
    return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();
  }

  // See if "".split is the broken IE version, if so, provide an
  // alternative way to split lines.
  var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
    var pos = 0, nl, result = [];
    while ((nl = string.indexOf("\n", pos)) > -1) {
      result.push(string.slice(pos, string.charAt(nl-1) == "\r" ? nl - 1 : nl));
      pos = nl + 1;
    }
    result.push(string.slice(pos));
    return result;
  } : function(string){return string.split(/\r?\n/);};
  CodeMirror.splitLines = splitLines;

  var hasSelection = window.getSelection ? function(te) {
    try { return te.selectionStart != te.selectionEnd; }
    catch(e) { return false; }
  } : function(te) {
    try {var range = te.ownerDocument.selection.createRange();}
    catch(e) {}
    if (!range || range.parentElement() != te) return false;
    return range.compareEndPoints("StartToEnd", range) != 0;
  };

  CodeMirror.defineMode("null", function() {
    return {token: function(stream) {stream.skipToEnd();}};
  });
  CodeMirror.defineMIME("text/plain", "null");

  var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
                  19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
                  36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
                  46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete",
                  186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
                  221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home",
                  63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"};
  CodeMirror.keyNames = keyNames;
  (function() {
    // Number keys
    for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
    // Alphabetic keys
    for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
    // Function keys
    for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
  })();

  return CodeMirror;
})();



A PHP Error was encountered

Severity: 8192
Message:  str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated
Filename: core/Output.php
Line Number: 457


	
Backtrace:
	
		
	
		
	
		
	
		
	
		
	
		
			

			File: /home/paste/public_html/index.php

			Line: 284

			Function: require_once