CSS Beautify - taken from https://github.com/senchalabs/cssbeautify

In this example below you will see how to do a CSS Beautify - taken from https://github.com/senchalabs/cssbeautify with some HTML / CSS and Javascript

CSS Beautify is a JavaScript implementation of reindenter and reformatter for styles written in CSS.

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This awesome code was written by systemctl, you can see more from this user in the personal repository.
You can find the original code on Codepen.io
Copyright systemctl ©
  • HTML
  • CSS
  • JavaScript
<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <title>CSS Beautify - taken from https://github.com/senchalabs/cssbeautify</title>
  
  
  
      <link rel="stylesheet" href="css/style.css">

  
</head>

<body>

  <div class="container">

    <h1>CSS Beautify <small>automatically formats your style to be consistent and easy to read</small></h1>
    <ul>
        <li>Only one blank line between two rulesets</li>
        <li>Closed curly brace is at its own line</li>
        <li>There is no empty line between declarations inside a ruleset</li>
        <li>No space between the property name and colon</li>
        <li>One space between colon and the property value</li>
        <li>Comments are preserved</li>
    </ul>

    <p>For a command-line use, install Node.js <a href="https://npmjs.org/package/cssbeautify">cssbeautify package</a>.</p>

    <div class="raw">
        <h3>Type any unformatted CSS:</h3>
        <textarea id="raw" rows="22" autofocus="autofocus" spellcheck="false" onChange='format()' onKeyDown='format()'>menu{color:red} navigation{background-color:#333 /* darkgrey */}</textarea>
    </div>

    <div class="formatted">
        <h3>Beautified CSS:</h3>
        <textarea id="beautified" rows="22" readonly></textarea>
    </div>

    <div class="options">
        <h3>Options:</h3>
        <p>Indent with<br>
        <label><input checked type="radio" name="indent" id="fourspaces" value="fourspaces" onChange='format()'>4 spaces</label><br>
        <label><input type="radio" name="indent" id="twospaces" value="twospaces" onChange='format()'>2 spaces</label><br>
        <label><input type="radio" name="indent" id="tab" value="tab" onChange='format()'>tab</label>
        </p>
        <p>Open curly brace:<br>
        <label><input checked type="radio" name="openbrace" id="openbrace-end-of-line" onChange='format()'>end of line</label><br>
        <label><input type="radio" name="openbrace" id="openbrace-separate-line" onChange='format()'>separate line</label>
        </p>
        <p><label><input checked type="checkbox" name="autosemicolon" id="autosemicolon" onChange='format()'>Automatic semicolon</label></p>
    </div>

    <br clear="all"/>
    <div class="footer"><strong>CSS Beautify</strong> is an open-source project from <a href="http://senchalabs.org">Sencha Labs</a>.<br>Check the repository at <a href="https://github.com/senchalabs/cssbeautify">github.com/senchalabs/cssbeautify</a>.</div>

  <p><a href="https://github.com/senchalabs/cssbeautify"><img style="position: absolute; top: 0; right: 0; border: 0;" src="data:image/png;base64,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" alt="Fork me on GitHub"></a></p>
  </div>
  
  

    <script  src="js/index.js"></script>




</body>

</html>

/*Downloaded from https://www.codeseek.co/systemctl/css-beautify-taken-from-httpsgithubcomsenchalabscssbeautify-bEGYoy */
.CodeMirror {
  line-height: 1em;
  font-family: monospace;

  /* Necessary so the scrollbar can be absolutely positioned within the wrapper on Lion. */
  position: relative;
  /* This prevents unwanted scrollbars from showing up on the body and wrapper in IE. */
  overflow: hidden;
}

.CodeMirror-scroll {
  overflow: auto;
  height: 300px;
  /* This is needed to prevent an IE[67] bug where the scrolled content
     is visible outside of the scrolling box. */
  position: relative;
  outline: none;
}

/* Vertical scrollbar */
.CodeMirror-scrollbar {
  position: absolute;
  right: 0; top: 0;
  overflow-x: hidden;
  overflow-y: scroll;
  z-index: 5;
}
.CodeMirror-scrollbar-inner {
  /* This needs to have a nonzero width in order for the scrollbar to appear
     in Firefox and IE9. */
  width: 1px;
}
.CodeMirror-scrollbar.cm-sb-overlap {
  /* Ensure that the scrollbar appears in Lion, and that it overlaps the content
     rather than sitting to the right of it. */
  position: absolute;
  z-index: 1;
  float: none;
  right: 0;
  min-width: 12px;
}
.CodeMirror-scrollbar.cm-sb-nonoverlap {
  min-width: 12px;
}
.CodeMirror-scrollbar.cm-sb-ie7 {
  min-width: 18px;
}

.CodeMirror-gutter {
  position: absolute; left: 0; top: 0;
  z-index: 10;
  background-color: #f7f7f7;
  border-right: 1px solid #eee;
  min-width: 2em;
  height: 100%;
}
.CodeMirror-gutter-text {
  color: #aaa;
  text-align: right;
  padding: .4em .2em .4em .4em;
  white-space: pre !important;
  cursor: default;
}
.CodeMirror-lines {
  padding: .4em;
  white-space: pre;
  cursor: text;
}

.CodeMirror pre {
  -moz-border-radius: 0;
  -webkit-border-radius: 0;
  -o-border-radius: 0;
  border-radius: 0;
  border-width: 0; margin: 0; padding: 0; background: transparent;
  font-family: inherit;
  font-size: inherit;
  padding: 0; margin: 0;
  white-space: pre;
  word-wrap: normal;
  line-height: inherit;
  color: inherit;
}

.CodeMirror-wrap pre {
  word-wrap: break-word;
  white-space: pre-wrap;
  word-break: normal;
}
.CodeMirror-wrap .CodeMirror-scroll {
  overflow-x: hidden;
}

.CodeMirror textarea {
  outline: none !important;
}

.CodeMirror pre.CodeMirror-cursor {
  z-index: 10;
  position: absolute;
  visibility: hidden;
  border-left: 1px solid black;
  border-right: none;
  width: 0;
}
.cm-keymap-fat-cursor pre.CodeMirror-cursor {
  width: auto;
  border: 0;
  background: transparent;
  background: rgba(0, 200, 0, .4);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#6600c800, endColorstr=#4c00c800);
}
/* Kludge to turn off filter in ie9+, which also accepts rgba */
.cm-keymap-fat-cursor pre.CodeMirror-cursor:not(#nonsense_id) {
  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
}
.CodeMirror pre.CodeMirror-cursor.CodeMirror-overwrite {}
.CodeMirror-focused pre.CodeMirror-cursor {
  visibility: visible;
}

div.CodeMirror-selected { background: #d9d9d9; }
.CodeMirror-focused div.CodeMirror-selected { background: #d7d4f0; }

.CodeMirror-searching {
  background: #ffa;
  background: rgba(255, 255, 0, .4);
}

/* Default theme */

.cm-s-default span.cm-keyword {color: #708;}
.cm-s-default span.cm-atom {color: #219;}
.cm-s-default span.cm-number {color: #164;}
.cm-s-default span.cm-def {color: #00f;}
.cm-s-default span.cm-variable {color: black;}
.cm-s-default span.cm-variable-2 {color: #05a;}
.cm-s-default span.cm-variable-3 {color: #085;}
.cm-s-default span.cm-property {color: black;}
.cm-s-default span.cm-operator {color: black;}
.cm-s-default span.cm-comment {color: #a50;}
.cm-s-default span.cm-string {color: #a11;}
.cm-s-default span.cm-string-2 {color: #f50;}
.cm-s-default span.cm-meta {color: #555;}
.cm-s-default span.cm-error {color: #f00;}
.cm-s-default span.cm-qualifier {color: #555;}
.cm-s-default span.cm-builtin {color: #30a;}
.cm-s-default span.cm-bracket {color: #997;}
.cm-s-default span.cm-tag {color: #170;}
.cm-s-default span.cm-attribute {color: #00c;}
.cm-s-default span.cm-header {color: blue;}
.cm-s-default span.cm-quote {color: #090;}
.cm-s-default span.cm-hr {color: #999;}
.cm-s-default span.cm-link {color: #00c;}

span.cm-header, span.cm-strong {font-weight: bold;}
span.cm-em {font-style: italic;}
span.cm-emstrong {font-style: italic; font-weight: bold;}
span.cm-link {text-decoration: underline;}

span.cm-invalidchar {color: #f00;}

div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}

@media print {

  /* Hide the cursor when printing */
  .CodeMirror pre.CodeMirror-cursor {
    visibility: hidden;
  }

}


















































body {
    min-width: 960px;
    background-color: #ffffff;
    margin: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 13px;
    font-weight: normal;
    line-height: 18px;
    color: #444;
}

p {
    font-size: 13px;
    font-weight: normal;
    line-height: 18px;
    margin-bottom: 9px;
}

a {
    text-decoration: none;
}

h1 {
    margin-bottom: 18px;
    font-size: 30px;
    line-height: 36px;
    font-weight: bold;
    color: #444;
}

h1 small {
    font-size: 18px;
    color: #ccc;
}

h3 {
    color: #555;
}

textarea {
    font-family: Inconsolata, Monaco, Consolas, "Lucida Console", monospace;
    font-size: 14px;
    color: #555;
    width: 340px;
    padding: 7px;
    -webkit-appearance: none;
    outline: 0;
    border: 1px solid #bbb;
}

.container {
    margin-left: auto;
    margin-right: auto;
    width: 960px;
}

.container .raw {
    width: 380px;
    display: inline;
    float: left;
    margin-left: 10px;
    margin-right: 10px;
}

.container .raw textarea {
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
    -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
    -moz-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: border linear 0.25s, box-shadow linear 0.25s;
    -webkit-transition: border linear 0.25s, box-shadow linear 0.25s;
    -moz-transition: border linear 0.25s, box-shadow linear 0.25s;
    -o-transition: border linear 0.25s, box-shadow linear 0.25s;
}

.container .raw textarea:focus {
    border-color: rgba(60, 200, 1, 0.8);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(60, 200, 1, 0.4);
    -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(60, 200, 1, 0.4);
    -moz-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(60, 200, 1, 0.4);
}

.container .formatted {
    width: 380px;
    display: inline;
    float: left;
    margin-left: 10px;
    margin-right: 10px;
}

.container .formatted textarea {
    color: #000;
}

.container .options {
    width: 140px;
    display: inline;
    float: left;
    margin-left: 10px;
    margin-right: 10px;
}

.container .options input {
    margin: 5px 5px 5px 0px;
}

.container .options input[type=radio] {
    margin-left: 10px;
}

.footer {
    margin-top: 25px;
    color: #555;
    text-align: center;
}

.CodeMirror {
    padding: 0;
    border: 1px solid #bbb;
}

.CodeMirror-scroll {
    height: 320px;
}


/*Downloaded from https://www.codeseek.co/systemctl/css-beautify-taken-from-httpsgithubcomsenchalabscssbeautify-bEGYoy */
// CodeMirror version 2.34

// 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
window.CodeMirror = (function() {
  "use strict";
  // This is the function that produces an editor instance. Its
  // closure is used to store the editor state.
  function CodeMirror(place, givenOptions) {
    // Determine effective options based on given values and defaults.
    var options = {}, defaults = CodeMirror.defaults;
    for (var opt in defaults)
      if (defaults.hasOwnProperty(opt))
        options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt];

    var input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em");
    input.setAttribute("wrap", "off"); input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off");
    // Wraps and hides input textarea
    var inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
    // The empty scrollbar content, used solely for managing the scrollbar thumb.
    var scrollbarInner = elt("div", null, "CodeMirror-scrollbar-inner");
    // The vertical scrollbar. Horizontal scrolling is handled by the scroller itself.
    var scrollbar = elt("div", [scrollbarInner], "CodeMirror-scrollbar");
    // DIVs containing the selection and the actual code
    var lineDiv = elt("div"), selectionDiv = elt("div", null, null, "position: relative; z-index: -1");
    // Blinky cursor, and element used to ensure cursor fits at the end of a line
    var cursor = elt("pre", "\u00a0", "CodeMirror-cursor"), widthForcer = elt("pre", "\u00a0", "CodeMirror-cursor", "visibility: hidden");
    // Used to measure text size
    var measure = elt("div", null, null, "position: absolute; width: 100%; height: 0px; overflow: hidden; visibility: hidden;");
    var lineSpace = elt("div", [measure, cursor, widthForcer, selectionDiv, lineDiv], null, "position: relative; z-index: 0");
    var gutterText = elt("div", null, "CodeMirror-gutter-text"), gutter = elt("div", [gutterText], "CodeMirror-gutter");
    // Moved around its parent to cover visible view
    var mover = elt("div", [gutter, elt("div", [lineSpace], "CodeMirror-lines")], null, "position: relative");
    // Set to the height of the text, causes scrolling
    var sizer = elt("div", [mover], null, "position: relative");
    // Provides scrolling
    var scroller = elt("div", [sizer], "CodeMirror-scroll");
    scroller.setAttribute("tabIndex", "-1");
    // The element in which the editor lives.
    var wrapper = elt("div", [inputDiv, scrollbar, scroller], "CodeMirror" + (options.lineWrapping ? " CodeMirror-wrap" : ""));
    if (place.appendChild) place.appendChild(wrapper); else place(wrapper);

    themeChanged(); keyMapChanged();
    // Needed to hide big blue blinking cursor on Mobile Safari
    if (ios) input.style.width = "0px";
    if (!webkit) scroller.draggable = true;
    lineSpace.style.outline = "none";
    if (options.tabindex != null) input.tabIndex = options.tabindex;
    if (options.autofocus) focusInput();
    if (!options.gutter && !options.lineNumbers) gutter.style.display = "none";
    // Needed to handle Tab key in KHTML
    if (khtml) inputDiv.style.height = "1px", inputDiv.style.position = "absolute";

    // Check for OS X >= 10.7. This has transparent scrollbars, so the
    // overlaying of one scrollbar with another won't work. This is a
    // temporary hack to simply turn off the overlay scrollbar. See
    // issue #727.
    if (mac_geLion) { scrollbar.style.zIndex = -2; scrollbar.style.visibility = "hidden"; }
    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
    else if (ie_lt8) scrollbar.style.minWidth = "18px";

    // Delayed object wrap timeouts, making sure only one is active. blinker holds an interval.
    var poll = new Delayed(), highlight = new Delayed(), blinker;

    // mode holds a mode API object. doc is the tree of Line objects,
    // frontier is the point up to which the content has been parsed,
    // and history the undo history (instance of History constructor).
    var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), frontier = 0, focused;
    loadMode();
    // The selection. These are always maintained to point at valid
    // positions. Inverted is used to remember that the user is
    // selecting bottom-to-top.
    var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false};
    // Selection-related flags. shiftSelecting obviously tracks
    // whether the user is holding shift.
    var shiftSelecting, lastClick, lastDoubleClick, lastScrollTop = 0, draggingText,
        overwrite = false, suppressEdits = false;
    // Variables used by startOperation/endOperation to track what
    // happened during the operation.
    var updateInput, userSelChange, changes, textChanged, selectionChanged,
        gutterDirty, callbacks;
    // Current visible range (may be bigger than the view window).
    var displayOffset = 0, showingFrom = 0, showingTo = 0, lastSizeC = 0;
    // bracketHighlighted is used to remember that a bracket has been
    // marked.
    var bracketHighlighted;
    // Tracks the maximum line length so that the horizontal scrollbar
    // can be kept static when scrolling.
    var maxLine = getLine(0), updateMaxLine = false, maxLineChanged = true;
    var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll
    var goalColumn = null;

    // Initialize the content.
    operation(function(){setValue(options.value || ""); updateInput = false;})();
    var history = new History();

    // Register our event handlers.
    connect(scroller, "mousedown", operation(onMouseDown));
    connect(scroller, "dblclick", operation(onDoubleClick));
    connect(lineSpace, "selectstart", e_preventDefault);
    // Gecko browsers fire contextmenu *after* opening the menu, at
    // which point we can't mess with it anymore. Context menu is
    // handled in onMouseDown for Gecko.
    if (!gecko) connect(scroller, "contextmenu", onContextMenu);
    connect(scroller, "scroll", onScrollMain);
    connect(scrollbar, "scroll", onScrollBar);
    connect(scrollbar, "mousedown", function() {if (focused) setTimeout(focusInput, 0);});
    var resizeHandler = connect(window, "resize", function() {
      if (wrapper.parentNode) updateDisplay(true);
      else resizeHandler();
    }, true);
    connect(input, "keyup", operation(onKeyUp));
    connect(input, "input", fastPoll);
    connect(input, "keydown", operation(onKeyDown));
    connect(input, "keypress", operation(onKeyPress));
    connect(input, "focus", onFocus);
    connect(input, "blur", onBlur);

    function drag_(e) {
      if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
      e_stop(e);
    }
    if (options.dragDrop) {
      connect(scroller, "dragstart", onDragStart);
      connect(scroller, "dragenter", drag_);
      connect(scroller, "dragover", drag_);
      connect(scroller, "drop", operation(onDrop));
    }
    connect(scroller, "paste", function(){focusInput(); fastPoll();});
    connect(input, "paste", fastPoll);
    connect(input, "cut", operation(function(){
      if (!options.readOnly) replaceSelection("");
    }));

    // Needed to handle Tab key in KHTML
    if (khtml) connect(sizer, "mouseup", function() {
        if (document.activeElement == input) input.blur();
        focusInput();
    });

    // IE throws unspecified error in certain cases, when
    // trying to access activeElement before onload
    var hasFocus; try { hasFocus = (document.activeElement == input); } catch(e) { }
    if (hasFocus || options.autofocus) setTimeout(onFocus, 20);
    else onBlur();

    function isLine(l) {return l >= 0 && l < doc.size;}
    // The instance object that we'll return. Mostly calls out to
    // local functions in the CodeMirror function. Some do some extra
    // range checking and/or clipping. operation is used to wrap the
    // call so that changes it makes are tracked, and the display is
    // updated afterwards.
    var instance = wrapper.CodeMirror = {
      getValue: getValue,
      setValue: operation(setValue),
      getSelection: getSelection,
      replaceSelection: operation(replaceSelection),
      focus: function(){window.focus(); focusInput(); onFocus(); fastPoll();},
      setOption: function(option, value) {
        var oldVal = options[option];
        options[option] = value;
        if (option == "mode" || option == "indentUnit") loadMode();
        else if (option == "readOnly" && value == "nocursor") {onBlur(); input.blur();}
        else if (option == "readOnly" && !value) {resetInput(true);}
        else if (option == "theme") themeChanged();
        else if (option == "lineWrapping" && oldVal != value) operation(wrappingChanged)();
        else if (option == "tabSize") updateDisplay(true);
        else if (option == "keyMap") keyMapChanged();
        if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" ||
            option == "theme" || option == "lineNumberFormatter") {
          gutterChanged();
          updateDisplay(true);
        }
      },
      getOption: function(option) {return options[option];},
      getMode: function() {return mode;},
      undo: operation(undo),
      redo: operation(redo),
      indentLine: operation(function(n, dir) {
        if (typeof dir != "string") {
          if (dir == null) dir = options.smartIndent ? "smart" : "prev";
          else dir = dir ? "add" : "subtract";
        }
        if (isLine(n)) indentLine(n, dir);
      }),
      indentSelection: operation(indentSelected),
      historySize: function() {return {undo: history.done.length, redo: history.undone.length};},
      clearHistory: function() {history = new History();},
      setHistory: function(histData) {
        history = new History();
        history.done = histData.done;
        history.undone = histData.undone;
      },
      getHistory: function() {
        function cp(arr) {
          for (var i = 0, nw = [], nwelt; i < arr.length; ++i) {
            nw.push(nwelt = []);
            for (var j = 0, elt = arr[i]; j < elt.length; ++j) {
              var old = [], cur = elt[j];
              nwelt.push({start: cur.start, added: cur.added, old: old});
              for (var k = 0; k < cur.old.length; ++k) old.push(hlText(cur.old[k]));
            }
          }
          return nw;
        }
        return {done: cp(history.done), undone: cp(history.undone)};
      },
      matchBrackets: operation(function(){matchBrackets(true);}),
      getTokenAt: operation(function(pos) {
        pos = clipPos(pos);
        return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), options.tabSize, pos.ch);
      }),
      getStateAfter: function(line) {
        line = clipLine(line == null ? doc.size - 1: line);
        return getStateBefore(line + 1);
      },
      cursorCoords: function(start, mode) {
        if (start == null) start = sel.inverted;
        return this.charCoords(start ? sel.from : sel.to, mode);
      },
      charCoords: function(pos, mode) {
        pos = clipPos(pos);
        if (mode == "local") return localCoords(pos, false);
        if (mode == "div") return localCoords(pos, true);
        return pageCoords(pos);
      },
      coordsChar: function(coords) {
        var off = eltOffset(lineSpace);
        return coordsChar(coords.x - off.left, coords.y - off.top);
      },
      markText: operation(markText),
      setBookmark: setBookmark,
      findMarksAt: findMarksAt,
      setMarker: operation(addGutterMarker),
      clearMarker: operation(removeGutterMarker),
      setLineClass: operation(setLineClass),
      hideLine: operation(function(h) {return setLineHidden(h, true);}),
      showLine: operation(function(h) {return setLineHidden(h, false);}),
      onDeleteLine: function(line, f) {
        if (typeof line == "number") {
          if (!isLine(line)) return null;
          line = getLine(line);
        }
        (line.handlers || (line.handlers = [])).push(f);
        return line;
      },
      lineInfo: lineInfo,
      getViewport: function() { return {from: showingFrom, to: showingTo};},
      addWidget: function(pos, node, scroll, vert, horiz) {
        pos = localCoords(clipPos(pos));
        var top = pos.yBot, left = pos.x;
        node.style.position = "absolute";
        sizer.appendChild(node);
        if (vert == "over") top = pos.y;
        else if (vert == "near") {
          var vspace = Math.max(scroller.offsetHeight, doc.height * textHeight()),
              hspace = Math.max(sizer.clientWidth, lineSpace.clientWidth) - paddingLeft();
          if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight)
            top = pos.y - node.offsetHeight;
          if (left + node.offsetWidth > hspace)
            left = hspace - node.offsetWidth;
        }
        node.style.top = (top + paddingTop()) + "px";
        node.style.left = node.style.right = "";
        if (horiz == "right") {
          left = sizer.clientWidth - node.offsetWidth;
          node.style.right = "0px";
        } else {
          if (horiz == "left") left = 0;
          else if (horiz == "middle") left = (sizer.clientWidth - node.offsetWidth) / 2;
          node.style.left = (left + paddingLeft()) + "px";
        }
        if (scroll)
          scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
      },

      lineCount: function() {return doc.size;},
      clipPos: clipPos,
      getCursor: function(start) {
        if (start == null) start = sel.inverted;
        return copyPos(start ? sel.from : sel.to);
      },
      somethingSelected: function() {return !posEq(sel.from, sel.to);},
      setCursor: operation(function(line, ch, user) {
        if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch, user);
        else setCursor(line, ch, user);
      }),
      setSelection: operation(function(from, to, user) {
        (user ? setSelectionUser : setSelection)(clipPos(from), clipPos(to || from));
      }),
      getLine: function(line) {if (isLine(line)) return getLine(line).text;},
      getLineHandle: function(line) {if (isLine(line)) return getLine(line);},
      setLine: operation(function(line, text) {
        if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: getLine(line).text.length});
      }),
      removeLine: operation(function(line) {
        if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0}));
      }),
      replaceRange: operation(replaceRange),
      getRange: function(from, to, lineSep) {return getRange(clipPos(from), clipPos(to), lineSep);},

      triggerOnKeyDown: operation(onKeyDown),
      execCommand: function(cmd) {return commands[cmd](instance);},
      // Stuff used by commands, probably not much use to outside code.
      moveH: operation(moveH),
      deleteH: operation(deleteH),
      moveV: operation(moveV),
      toggleOverwrite: function() {
        if(overwrite){
          overwrite = false;
          cursor.className = cursor.className.replace(" CodeMirror-overwrite", "");
        } else {
          overwrite = true;
          cursor.className += " CodeMirror-overwrite";
        }
      },

      posFromIndex: function(off) {
        var lineNo = 0, ch;
        doc.iter(0, doc.size, function(line) {
          var sz = line.text.length + 1;
          if (sz > off) { ch = off; return true; }
          off -= sz;
          ++lineNo;
        });
        return clipPos({line: lineNo, ch: ch});
      },
      indexFromPos: function (coords) {
        if (coords.line < 0 || coords.ch < 0) return 0;
        var index = coords.ch;
        doc.iter(0, coords.line, function (line) {
          index += line.text.length + 1;
        });
        return index;
      },
      scrollTo: function(x, y) {
        if (x != null) scroller.scrollLeft = x;
        if (y != null) scrollbar.scrollTop = scroller.scrollTop = y;
        updateDisplay([]);
      },
      getScrollInfo: function() {
        return {x: scroller.scrollLeft, y: scrollbar.scrollTop,
                height: scrollbar.scrollHeight, width: scroller.scrollWidth};
      },
      setSize: function(width, height) {
        function interpret(val) {
          val = String(val);
          return /^\d+$/.test(val) ? val + "px" : val;
        }
        if (width != null) wrapper.style.width = interpret(width);
        if (height != null) scroller.style.height = interpret(height);
        instance.refresh();
      },

      operation: function(f){return operation(f)();},
      compoundChange: function(f){return compoundChange(f);},
      refresh: function(){
        updateDisplay(true, null, lastScrollTop);
        if (scrollbar.scrollHeight > lastScrollTop)
          scrollbar.scrollTop = lastScrollTop;
      },
      getInputField: function(){return input;},
      getWrapperElement: function(){return wrapper;},
      getScrollerElement: function(){return scroller;},
      getGutterElement: function(){return gutter;}
    };

    function getLine(n) { return getLineAt(doc, n); }
    function updateLineHeight(line, height) {
      gutterDirty = true;
      var diff = height - line.height;
      for (var n = line; n; n = n.parent) n.height += diff;
    }

    function lineContent(line, wrapAt) {
      if (!line.styles)
        line.highlight(mode, line.stateAfter = getStateBefore(lineNo(line)), options.tabSize);
      return line.getContent(options.tabSize, wrapAt, options.lineWrapping);
    }

    function setValue(code) {
      var top = {line: 0, ch: 0};
      updateLines(top, {line: doc.size - 1, ch: getLine(doc.size-1).text.length},
                  splitLines(code), top, top);
      updateInput = true;
    }
    function getValue(lineSep) {
      var text = [];
      doc.iter(0, doc.size, function(line) { text.push(line.text); });
      return text.join(lineSep || "\n");
    }

    function onScrollBar(e) {
      if (scrollbar.scrollTop != lastScrollTop) {
        lastScrollTop = scroller.scrollTop = scrollbar.scrollTop;
        updateDisplay([]);
      }
    }

    function onScrollMain(e) {
      if (options.fixedGutter && gutter.style.left != scroller.scrollLeft + "px")
        gutter.style.left = scroller.scrollLeft + "px";
      if (scroller.scrollTop != lastScrollTop) {
        lastScrollTop = scroller.scrollTop;
        if (scrollbar.scrollTop != lastScrollTop)
          scrollbar.scrollTop = lastScrollTop;
        updateDisplay([]);
      }
      if (options.onScroll) options.onScroll(instance);
    }

    function onMouseDown(e) {
      setShift(e_prop(e, "shiftKey"));
      // Check whether this is a click in a widget
      for (var n = e_target(e); n != wrapper; n = n.parentNode)
        if (n.parentNode == sizer && n != mover) return;

      // See if this is a click in the gutter
      for (var n = e_target(e); n != wrapper; n = n.parentNode)
        if (n.parentNode == gutterText) {
          if (options.onGutterClick)
            options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom, e);
          return e_preventDefault(e);
        }

      var start = posFromMouse(e);

      switch (e_button(e)) {
      case 3:
        if (gecko) onContextMenu(e);
        return;
      case 2:
        if (start) setCursor(start.line, start.ch, true);
        setTimeout(focusInput, 20);
        e_preventDefault(e);
        return;
      }
      // For button 1, if it was clicked inside the editor
      // (posFromMouse returning non-null), we have to adjust the
      // selection.
      if (!start) {if (e_target(e) == scroller) e_preventDefault(e); return;}

      if (!focused) onFocus();

      var now = +new Date, type = "single";
      if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
        type = "triple";
        e_preventDefault(e);
        setTimeout(focusInput, 20);
        selectLine(start.line);
      } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
        type = "double";
        lastDoubleClick = {time: now, pos: start};
        e_preventDefault(e);
        var word = findWordAt(start);
        setSelectionUser(word.from, word.to);
      } else { lastClick = {time: now, pos: start}; }

      function dragEnd(e2) {
        if (webkit) scroller.draggable = false;
        draggingText = false;
        up(); drop();
        if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
          e_preventDefault(e2);
          setCursor(start.line, start.ch, true);
          focusInput();
        }
      }
      var last = start, going;
      if (options.dragDrop && dragAndDrop && !options.readOnly && !posEq(sel.from, sel.to) &&
          !posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") {
        // Let the drag handler handle this.
        if (webkit) scroller.draggable = true;
        var up = connect(document, "mouseup", operation(dragEnd), true);
        var drop = connect(scroller, "drop", operation(dragEnd), true);
        draggingText = true;
        // IE's approach to draggable
        if (scroller.dragDrop) scroller.dragDrop();
        return;
      }
      e_preventDefault(e);
      if (type == "single") setCursor(start.line, start.ch, true);

      var startstart = sel.from, startend = sel.to;

      function doSelect(cur) {
        if (type == "single") {
          setSelectionUser(start, cur);
        } else if (type == "double") {
          var word = findWordAt(cur);
          if (posLess(cur, startstart)) setSelectionUser(word.from, startend);
          else setSelectionUser(startstart, word.to);
        } else if (type == "triple") {
          if (posLess(cur, startstart)) setSelectionUser(startend, clipPos({line: cur.line, ch: 0}));
          else setSelectionUser(startstart, clipPos({line: cur.line + 1, ch: 0}));
        }
      }

      function extend(e) {
        var cur = posFromMouse(e, true);
        if (cur && !posEq(cur, last)) {
          if (!focused) onFocus();
          last = cur;
          doSelect(cur);
          updateInput = false;
          var visible = visibleLines();
          if (cur.line >= visible.to || cur.line < visible.from)
            going = setTimeout(operation(function(){extend(e);}), 150);
        }
      }

      function done(e) {
        clearTimeout(going);
        var cur = posFromMouse(e);
        if (cur) doSelect(cur);
        e_preventDefault(e);
        focusInput();
        updateInput = true;
        move(); up();
      }
      var move = connect(document, "mousemove", operation(function(e) {
        clearTimeout(going);
        e_preventDefault(e);
        if (!ie && !e_button(e)) done(e);
        else extend(e);
      }), true);
      var up = connect(document, "mouseup", operation(done), true);
    }
    function onDoubleClick(e) {
      for (var n = e_target(e); n != wrapper; n = n.parentNode)
        if (n.parentNode == gutterText) return e_preventDefault(e);
      e_preventDefault(e);
    }
    function onDrop(e) {
      if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
      e_preventDefault(e);
      var pos = posFromMouse(e, true), files = 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;
        var loadFile = function(file, i) {
          var reader = new FileReader;
          reader.onload = function() {
            text[i] = reader.result;
            if (++read == n) {
              pos = clipPos(pos);
              operation(function() {
                var end = replaceRange(text.join(""), pos, pos);
                setSelectionUser(pos, end);
              })();
            }
          };
          reader.readAsText(file);
        };
        for (var i = 0; i < n; ++i) loadFile(files[i], i);
      } else {
        // Don't do a replace if the drop happened inside of the selected text.
        if (draggingText && !(posLess(pos, sel.from) || posLess(sel.to, pos))) return;
        try {
          var text = e.dataTransfer.getData("Text");
          if (text) {
            compoundChange(function() {
              var curFrom = sel.from, curTo = sel.to;
              setSelectionUser(pos, pos);
              if (draggingText) replaceRange("", curFrom, curTo);
              replaceSelection(text);
              focusInput();
            });
          }
        }
        catch(e){}
      }
    }
    function onDragStart(e) {
      var txt = getSelection();
      e.dataTransfer.setData("Text", txt);

      // Use dummy image instead of default browsers image.
      if (e.dataTransfer.setDragImage)
        e.dataTransfer.setDragImage(elt('img'), 0, 0);
    }

    function doHandleBinding(bound, dropShift) {
      if (typeof bound == "string") {
        bound = commands[bound];
        if (!bound) return false;
      }
      var prevShift = shiftSelecting;
      try {
        if (options.readOnly) suppressEdits = true;
        if (dropShift) shiftSelecting = null;
        bound(instance);
      } catch(e) {
        if (e != Pass) throw e;
        return false;
      } finally {
        shiftSelecting = prevShift;
        suppressEdits = false;
      }
      return true;
    }
    var maybeTransition;
    function handleKeyBinding(e) {
      // Handle auto keymap transitions
      var startMap = getKeyMap(options.keyMap), next = startMap.auto;
      clearTimeout(maybeTransition);
      if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
        if (getKeyMap(options.keyMap) == startMap) {
          options.keyMap = (next.call ? next.call(null, instance) : next);
        }
      }, 50);

      var name = keyNames[e_prop(e, "keyCode")], handled = false;
      var flipCtrlCmd = opera && mac;
      if (name == null || e.altGraphKey) return false;
      if (e_prop(e, "altKey")) name = "Alt-" + name;
      if (e_prop(e, flipCtrlCmd ? "metaKey" : "ctrlKey")) name = "Ctrl-" + name;
      if (e_prop(e, flipCtrlCmd ? "ctrlKey" : "metaKey")) name = "Cmd-" + name;

      var stopped = false;
      function stop() { stopped = true; }

      if (e_prop(e, "shiftKey")) {
        handled = lookupKey("Shift-" + name, options.extraKeys, options.keyMap,
                            function(b) {return doHandleBinding(b, true);}, stop)
               || lookupKey(name, options.extraKeys, options.keyMap, function(b) {
                 if (typeof b == "string" && /^go[A-Z]/.test(b)) return doHandleBinding(b);
               }, stop);
      } else {
        handled = lookupKey(name, options.extraKeys, options.keyMap, doHandleBinding, stop);
      }
      if (stopped) handled = false;
      if (handled) {
        e_preventDefault(e);
        restartBlink();
        if (ie) { e.oldKeyCode = e.keyCode; e.keyCode = 0; }
      }
      return handled;
    }
    function handleCharBinding(e, ch) {
      var handled = lookupKey("'" + ch + "'", options.extraKeys,
                              options.keyMap, function(b) { return doHandleBinding(b, true); });
      if (handled) {
        e_preventDefault(e);
        restartBlink();
      }
      return handled;
    }

    var lastStoppedKey = null;
    function onKeyDown(e) {
      if (!focused) onFocus();
      if (ie && e.keyCode == 27) { e.returnValue = false; }
      if (pollingFast) { if (readInput()) pollingFast = false; }
      if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
      var code = e_prop(e, "keyCode");
      // IE does strange things with escape.
      setShift(code == 16 || e_prop(e, "shiftKey"));
      // First give onKeyEvent option a chance to handle this.
      var handled = handleKeyBinding(e);
      if (opera) {
        lastStoppedKey = handled ? code : null;
        // Opera has no cut event... we try to at least catch the key combo
        if (!handled && code == 88 && e_prop(e, mac ? "metaKey" : "ctrlKey"))
          replaceSelection("");
      }
    }
    function onKeyPress(e) {
      if (pollingFast) readInput();
      if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
      var keyCode = e_prop(e, "keyCode"), charCode = e_prop(e, "charCode");
      if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
      if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(e)) return;
      var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
      if (options.electricChars && mode.electricChars && options.smartIndent && !options.readOnly) {
        if (mode.electricChars.indexOf(ch) > -1)
          setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75);
      }
      if (handleCharBinding(e, ch)) return;
      fastPoll();
    }
    function onKeyUp(e) {
      if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
      if (e_prop(e, "keyCode") == 16) shiftSelecting = null;
    }

    function onFocus() {
      if (options.readOnly == "nocursor") return;
      if (!focused) {
        if (options.onFocus) options.onFocus(instance);
        focused = true;
        if (scroller.className.search(/\bCodeMirror-focused\b/) == -1)
          scroller.className += " CodeMirror-focused";
      }
      slowPoll();
      restartBlink();
    }
    function onBlur() {
      if (focused) {
        if (options.onBlur) options.onBlur(instance);
        focused = false;
        if (bracketHighlighted)
          operation(function(){
            if (bracketHighlighted) { bracketHighlighted(); bracketHighlighted = null; }
          })();
        scroller.className = scroller.className.replace(" CodeMirror-focused", "");
      }
      clearInterval(blinker);
      setTimeout(function() {if (!focused) shiftSelecting = null;}, 150);
    }

    // Replace the range from from to to by the strings in newText.
    // Afterwards, set the selection to selFrom, selTo.
    function updateLines(from, to, newText, selFrom, selTo) {
      if (suppressEdits) return;
      var old = [];
      doc.iter(from.line, to.line + 1, function(line) {
        old.push(newHL(line.text, line.markedSpans));
      });
      if (history) {
        history.addChange(from.line, newText.length, old);
        while (history.done.length > options.undoDepth) history.done.shift();
      }
      var lines = updateMarkedSpans(hlSpans(old[0]), hlSpans(lst(old)), from.ch, to.ch, newText);
      updateLinesNoUndo(from, to, lines, selFrom, selTo);
    }
    function unredoHelper(from, to) {
      if (!from.length) return;
      var set = from.pop(), out = [];
      for (var i = set.length - 1; i >= 0; i -= 1) {
        var change = set[i];
        var replaced = [], end = change.start + change.added;
        doc.iter(change.start, end, function(line) { replaced.push(newHL(line.text, line.markedSpans)); });
        out.push({start: change.start, added: change.old.length, old: replaced});
        var pos = {line: change.start + change.old.length - 1,
                   ch: editEnd(hlText(lst(replaced)), hlText(lst(change.old)))};
        updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: getLine(end-1).text.length},
                          change.old, pos, pos);
      }
      updateInput = true;
      to.push(out);
    }
    function undo() {unredoHelper(history.done, history.undone);}
    function redo() {unredoHelper(history.undone, history.done);}

    function updateLinesNoUndo(from, to, lines, selFrom, selTo) {
      if (suppressEdits) return;
      var recomputeMaxLength = false, maxLineLength = maxLine.text.length;
      if (!options.lineWrapping)
        doc.iter(from.line, to.line + 1, function(line) {
          if (!line.hidden && line.text.length == maxLineLength) {recomputeMaxLength = true; return true;}
        });
      if (from.line != to.line || lines.length > 1) gutterDirty = true;

      var nlines = to.line - from.line, firstLine = getLine(from.line), lastLine = getLine(to.line);
      var lastHL = lst(lines);

      // First adjust the line structure
      if (from.ch == 0 && to.ch == 0 && hlText(lastHL) == "") {
        // This is a whole-line replace. Treated specially to make
        // sure line objects move the way they are supposed to.
        var added = [], prevLine = null;
        for (var i = 0, e = lines.length - 1; i < e; ++i)
          added.push(new Line(hlText(lines[i]), hlSpans(lines[i])));
        lastLine.update(lastLine.text, hlSpans(lastHL));
        if (nlines) doc.remove(from.line, nlines, callbacks);
        if (added.length) doc.insert(from.line, added);
      } else if (firstLine == lastLine) {
        if (lines.length == 1) {
          firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]) + firstLine.text.slice(to.ch), hlSpans(lines[0]));
        } else {
          for (var added = [], i = 1, e = lines.length - 1; i < e; ++i)
            added.push(new Line(hlText(lines[i]), hlSpans(lines[i])));
          added.push(new Line(hlText(lastHL) + firstLine.text.slice(to.ch), hlSpans(lastHL)));
          firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]));
          doc.insert(from.line + 1, added);
        }
      } else if (lines.length == 1) {
        firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]) + lastLine.text.slice(to.ch), hlSpans(lines[0]));
        doc.remove(from.line + 1, nlines, callbacks);
      } else {
        var added = [];
        firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]));
        lastLine.update(hlText(lastHL) + lastLine.text.slice(to.ch), hlSpans(lastHL));
        for (var i = 1, e = lines.length - 1; i < e; ++i)
          added.push(new Line(hlText(lines[i]), hlSpans(lines[i])));
        if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks);
        doc.insert(from.line + 1, added);
      }
      if (options.lineWrapping) {
        var perLine = Math.max(5, scroller.clientWidth / charWidth() - 3);
        doc.iter(from.line, from.line + lines.length, function(line) {
          if (line.hidden) return;
          var guess = Math.ceil(line.text.length / perLine) || 1;
          if (guess != line.height) updateLineHeight(line, guess);
        });
      } else {
        doc.iter(from.line, from.line + lines.length, function(line) {
          var l = line.text;
          if (!line.hidden && l.length > maxLineLength) {
            maxLine = line; maxLineLength = l.length; maxLineChanged = true;
            recomputeMaxLength = false;
          }
        });
        if (recomputeMaxLength) updateMaxLine = true;
      }

      // Adjust frontier, schedule worker
      frontier = Math.min(frontier, from.line);
      startWorker(400);

      var lendiff = lines.length - nlines - 1;
      // Remember that these lines changed, for updating the display
      changes.push({from: from.line, to: to.line + 1, diff: lendiff});
      if (options.onChange) {
        // Normalize lines to contain only strings, since that's what
        // the change event handler expects
        for (var i = 0; i < lines.length; ++i)
          if (typeof lines[i] != "string") lines[i] = lines[i].text;
        var changeObj = {from: from, to: to, text: lines};
        if (textChanged) {
          for (var cur = textChanged; cur.next; cur = cur.next) {}
          cur.next = changeObj;
        } else textChanged = changeObj;
      }

      // Update the selection
      function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;}
      setSelection(clipPos(selFrom), clipPos(selTo),
                   updateLine(sel.from.line), updateLine(sel.to.line));
    }

    function needsScrollbar() {
      var realHeight = doc.height * textHeight() + 2 * paddingTop();
      return realHeight * .99 > scroller.offsetHeight ? realHeight : false;
    }

    function updateVerticalScroll(scrollTop) {
      var scrollHeight = needsScrollbar();
      scrollbar.style.display = scrollHeight ? "block" : "none";
      if (scrollHeight) {
        scrollbarInner.style.height = sizer.style.minHeight = scrollHeight + "px";
        scrollbar.style.height = scroller.clientHeight + "px";
        if (scrollTop != null) {
          scrollbar.scrollTop = scroller.scrollTop = scrollTop;
          // 'Nudge' the scrollbar to work around a Webkit bug where,
          // in some situations, we'd end up with a scrollbar that
          // reported its scrollTop (and looked) as expected, but
          // *behaved* as if it was still in a previous state (i.e.
          // couldn't scroll up, even though it appeared to be at the
          // bottom).
          if (webkit) setTimeout(function() {
            if (scrollbar.scrollTop != scrollTop) return;
            scrollbar.scrollTop = scrollTop + (scrollTop ? -1 : 1);
            scrollbar.scrollTop = scrollTop;
          }, 0);
        }
      } else {
        sizer.style.minHeight = "";
      }
      // Position the mover div to align with the current virtual scroll position
      mover.style.top = displayOffset * textHeight() + "px";
    }

    function computeMaxLength() {
      maxLine = getLine(0); maxLineChanged = true;
      var maxLineLength = maxLine.text.length;
      doc.iter(1, doc.size, function(line) {
        var l = line.text;
        if (!line.hidden && l.length > maxLineLength) {
          maxLineLength = l.length; maxLine = line;
        }
      });
      updateMaxLine = false;
    }

    function replaceRange(code, from, to) {
      from = clipPos(from);
      if (!to) to = from; else to = clipPos(to);
      code = splitLines(code);
      function adjustPos(pos) {
        if (posLess(pos, from)) return pos;
        if (!posLess(to, pos)) return end;
        var line = pos.line + code.length - (to.line - from.line) - 1;
        var ch = pos.ch;
        if (pos.line == to.line)
          ch += lst(code).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 : lst(code).length;
      var newSel = computeSel({line: from.line + code.length - 1, ch: endch});
      updateLines(from, to, code, newSel.from, newSel.to);
    }

    function getRange(from, to, lineSep) {
      var l1 = from.line, l2 = to.line;
      if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch);
      var code = [getLine(l1).text.slice(from.ch)];
      doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });
      code.push(getLine(l2).text.slice(0, to.ch));
      return code.join(lineSep || "\n");
    }
    function getSelection(lineSep) {
      return getRange(sel.from, sel.to, lineSep);
    }

    function slowPoll() {
      if (pollingFast) return;
      poll.set(options.pollInterval, function() {
        readInput();
        if (focused) slowPoll();
      });
    }
    function fastPoll() {
      var missed = false;
      pollingFast = true;
      function p() {
        var changed = readInput();
        if (!changed && !missed) {missed = true; poll.set(60, p);}
        else {pollingFast = false; slowPoll();}
      }
      poll.set(20, p);
    }

    // Previnput is a hack to work with IME. If we reset the textarea
    // on every change, that breaks IME. So we look for changes
    // compared to the previous content instead. (Modern browsers have
    // events that indicate IME taking place, but these are not widely
    // supported or compatible enough yet to rely on.)
    var prevInput = "";
    function readInput() {
      if (!focused || hasSelection(input) || options.readOnly) return false;
      var text = input.value;
      if (text == prevInput) return false;
      if (!nestedOperation) startOperation();
      shiftSelecting = null;
      var same = 0, l = Math.min(prevInput.length, text.length);
      while (same < l && prevInput[same] == text[same]) ++same;
      if (same < prevInput.length)
        sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)};
      else if (overwrite && posEq(sel.from, sel.to))
        sel.to = {line: sel.to.line, ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same))};
      replaceSelection(text.slice(same), "end");
      if (text.length > 1000) { input.value = prevInput = ""; }
      else prevInput = text;
      if (!nestedOperation) endOperation();
      return true;
    }
    function resetInput(user) {
      if (!posEq(sel.from, sel.to)) {
        prevInput = "";
        input.value = getSelection();
        if (focused) selectInput(input);
      } else if (user) prevInput = input.value = "";
    }

    function focusInput() {
      if (options.readOnly != "nocursor") input.focus();
    }

    function scrollCursorIntoView() {
      var coords = calculateCursorCoords();
      scrollIntoView(coords.x, coords.y, coords.x, coords.yBot);
      if (!focused) return;
      var box = sizer.getBoundingClientRect(), doScroll = null;
      if (coords.y + box.top < 0) doScroll = true;
      else if (coords.y + box.top + textHeight() > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
      if (doScroll != null) {
        var hidden = cursor.style.display == "none";
        if (hidden) {
          cursor.style.display = "";
          cursor.style.left = coords.x + "px";
          cursor.style.top = (coords.y - displayOffset) + "px";
        }
        cursor.scrollIntoView(doScroll);
        if (hidden) cursor.style.display = "none";
      }
    }
    function calculateCursorCoords() {
      var cursor = localCoords(sel.inverted ? sel.from : sel.to);
      var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x;
      return {x: x, y: cursor.y, yBot: cursor.yBot};
    }
    function scrollIntoView(x1, y1, x2, y2) {
      var scrollPos = calculateScrollPos(x1, y1, x2, y2);
      if (scrollPos.scrollLeft != null) {scroller.scrollLeft = scrollPos.scrollLeft;}
      if (scrollPos.scrollTop != null) {scrollbar.scrollTop = scroller.scrollTop = scrollPos.scrollTop;}
    }
    function calculateScrollPos(x1, y1, x2, y2) {
      var pl = paddingLeft(), pt = paddingTop();
      y1 += pt; y2 += pt; x1 += pl; x2 += pl;
      var screen = scroller.clientHeight, screentop = scrollbar.scrollTop, result = {};
      var docBottom = needsScrollbar() || Infinity;
      var atTop = y1 < pt + 10, atBottom = y2 + pt > docBottom - 10;
      if (y1 < screentop) result.scrollTop = atTop ? 0 : Math.max(0, y1);
      else if (y2 > screentop + screen) result.scrollTop = (atBottom ? docBottom : y2) - screen;

      var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft;
      var gutterw = options.fixedGutter ? gutter.clientWidth : 0;
      var atLeft = x1 < gutterw + pl + 10;
      if (x1 < screenleft + gutterw || atLeft) {
        if (atLeft) x1 = 0;
        result.scrollLeft = Math.max(0, x1 - 10 - gutterw);
      } else if (x2 > screenw + screenleft - 3) {
        result.scrollLeft = x2 + 10 - screenw;
      }
      return result;
    }

    function visibleLines(scrollTop) {
      var lh = textHeight(), top = (scrollTop != null ? scrollTop : scrollbar.scrollTop) - paddingTop();
      var fromHeight = Math.max(0, Math.floor(top / lh));
      var toHeight = Math.ceil((top + scroller.clientHeight) / lh);
      return {from: lineAtHeight(doc, fromHeight),
              to: lineAtHeight(doc, toHeight)};
    }
    // Uses a set of changes plus the current scroll position to
    // determine which DOM updates have to be made, and makes the
    // updates.
    function updateDisplay(changes, suppressCallback, scrollTop) {
      if (!scroller.clientWidth) {
        showingFrom = showingTo = displayOffset = 0;
        return;
      }
      // Compute the new visible window
      // If scrollTop is specified, use that to determine which lines
      // to render instead of the current scrollbar position.
      var visible = visibleLines(scrollTop);
      // Bail out if the visible area is already rendered and nothing changed.
      if (changes !== true && changes.length == 0 && visible.from > showingFrom && visible.to < showingTo) {
        updateVerticalScroll(scrollTop);
        return;
      }
      var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100);
      if (showingFrom < from && from - showingFrom < 20) from = showingFrom;
      if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo);

      // Create a range of theoretically intact lines, and punch holes
      // in that using the change info.
      var intact = changes === true ? [] :
        computeIntact([{from: showingFrom, to: showingTo, domStart: 0}], changes);
      // Clip off the parts that won't be visible
      var intactLines = 0;
      for (var i = 0; i < intact.length; ++i) {
        var range = intact[i];
        if (range.from < from) {range.domStart += (from - range.from); range.from = from;}
        if (range.to > to) range.to = to;
        if (range.from >= range.to) intact.splice(i--, 1);
        else intactLines += range.to - range.from;
      }
      if (intactLines == to - from && from == showingFrom && to == showingTo) {
        updateVerticalScroll(scrollTop);
        return;
      }
      intact.sort(function(a, b) {return a.domStart - b.domStart;});

      var th = textHeight(), gutterDisplay = gutter.style.display;
      lineDiv.style.display = "none";
      patchDisplay(from, to, intact);
      lineDiv.style.display = gutter.style.display = "";

      var different = from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th;
      // This is just a bogus formula that detects when the editor is
      // resized or the font size changes.
      if (different) lastSizeC = scroller.clientHeight + th;
      if (from != showingFrom || to != showingTo && options.onViewportChange)
        setTimeout(function(){
          if (options.onViewportChange) options.onViewportChange(instance, from, to);
        });
      showingFrom = from; showingTo = to;
      displayOffset = heightAtLine(doc, from);
      startWorker(100);

      // Since this is all rather error prone, it is honoured with the
      // only assertion in the whole file.
      if (lineDiv.childNodes.length != showingTo - showingFrom)
        throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (showingTo - showingFrom) +
                        " nodes=" + lineDiv.childNodes.length);

      function checkHeights() {
        var curNode = lineDiv.firstChild, heightChanged = false;
        doc.iter(showingFrom, showingTo, function(line) {
          // Work around bizarro IE7 bug where, sometimes, our curNode
          // is magically replaced with a new node in the DOM, leaving
          // us with a reference to an orphan (nextSibling-less) node.
          if (!curNode) return;
          if (!line.hidden) {
            var height = Math.round(curNode.offsetHeight / th) || 1;
            if (line.height != height) {
              updateLineHeight(line, height);
              gutterDirty = heightChanged = true;
            }
          }
          curNode = curNode.nextSibling;
        });
        return heightChanged;
      }

      if (options.lineWrapping) checkHeights();

      gutter.style.display = gutterDisplay;
      if (different || gutterDirty) {
        // If the gutter grew in size, re-check heights. If those changed, re-draw gutter.
        updateGutter() && options.lineWrapping && checkHeights() && updateGutter();
      }
      updateVerticalScroll(scrollTop);
      updateSelection();
      if (!suppressCallback && options.onUpdate) options.onUpdate(instance);
      return true;
    }

    function computeIntact(intact, changes) {
      for (var i = 0, l = changes.length || 0; i < l; ++i) {
        var change = changes[i], intact2 = [], diff = change.diff || 0;
        for (var j = 0, l2 = intact.length; j < l2; ++j) {
          var range = intact[j];
          if (change.to <= range.from && change.diff)
            intact2.push({from: range.from + diff, to: range.to + diff,
                          domStart: range.domStart});
          else if (change.to <= range.from || change.from >= range.to)
            intact2.push(range);
          else {
            if (change.from > range.from)
              intact2.push({from: range.from, to: change.from, domStart: range.domStart});
            if (change.to < range.to)
              intact2.push({from: change.to + diff, to: range.to + diff,
                            domStart: range.domStart + (change.to - range.from)});
          }
        }
        intact = intact2;
      }
      return intact;
    }

    function patchDisplay(from, to, intact) {
      function killNode(node) {
        var tmp = node.nextSibling;
        node.parentNode.removeChild(node);
        return tmp;
      }
      // The first pass removes the DOM nodes that aren't intact.
      if (!intact.length) removeChildren(lineDiv);
      else {
        var domPos = 0, curNode = lineDiv.firstChild, n;
        for (var i = 0; i < intact.length; ++i) {
          var cur = intact[i];
          while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;}
          for (var j = 0, e = cur.to - cur.from; j < e; ++j) {curNode = curNode.nextSibling; domPos++;}
        }
        while (curNode) curNode = killNode(curNode);
      }
      // This pass fills in the lines that actually changed.
      var nextIntact = intact.shift(), curNode = lineDiv.firstChild, j = from;
      doc.iter(from, to, function(line) {
        if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
        if (!nextIntact || nextIntact.from > j) {
          if (line.hidden) var lineElement = elt("pre");
          else {
            var lineElement = lineContent(line);
            if (line.className) lineElement.className = line.className;
            // Kludge to make sure the styled element lies behind the selection (by z-index)
            if (line.bgClassName) {
              var pre = elt("pre", "\u00a0", line.bgClassName, "position: absolute; left: 0; right: 0; top: 0; bottom: 0; z-index: -2");
              lineElement = elt("div", [pre, lineElement], null, "position: relative");
            }
          }
          lineDiv.insertBefore(lineElement, curNode);
        } else {
          curNode = curNode.nextSibling;
        }
        ++j;
      });
    }

    function updateGutter() {
      if (!options.gutter && !options.lineNumbers) return;
      var hText = mover.offsetHeight, hEditor = scroller.clientHeight;
      gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
      var fragment = document.createDocumentFragment(), i = showingFrom, normalNode;
      doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
        if (line.hidden) {
          fragment.appendChild(elt("pre"));
        } else {
          var marker = line.gutterMarker;
          var text = options.lineNumbers ? options.lineNumberFormatter(i + options.firstLineNumber) : null;
          if (marker && marker.text)
            text = marker.text.replace("%N%", text != null ? text : "");
          else if (text == null)
            text = "\u00a0";
          var markerElement = fragment.appendChild(elt("pre", null, marker && marker.style));
          markerElement.innerHTML = text;
          for (var j = 1; j < line.height; ++j) {
            markerElement.appendChild(elt("br"));
            markerElement.appendChild(document.createTextNode("\u00a0"));
          }
          if (!marker) normalNode = i;
        }
        ++i;
      });
      gutter.style.display = "none";
      removeChildrenAndAdd(gutterText, fragment);
      // 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, fragment = document.createDocumentFragment();
        var clientWidth = lineSpace.clientWidth || lineSpace.offsetWidth;
        var clientHeight = lineSpace.clientHeight || lineSpace.offsetHeight;
        var add = function(left, top, right, height) {
          var rstyle = quirksMode ? "width: " + (!right ? clientWidth : clientWidth - right - left) + "px"
                                  : "right: " + right + "px";
          fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
                                   "px; top: " + top + "px; " + rstyle + "; height: " + height + "px"));
        };
        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);
        removeChildrenAndAdd(selectionDiv, fragment);
        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;
    }
    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") {
        var screen = Math.min(scroller.clientHeight, window.innerHeight || document.documentElement.clientHeight);
        var target = coordsChar(pos.x, pos.y + screen * dir);
      } else if (unit == "line") {
        var th = textHeight();
        var target = coordsChar(pos.x, pos.y + .5 * th + dir * th);
      }
      if (unit == "page") scrollbar.scrollTop += localCoords(target, true).y - pos.y;
      setCursor(target.line, target.ch, true);
      goalColumn = pos.x;
    }

    function findWordAt(pos) {
      var line = getLine(pos.line).text;
      var start = pos.ch, end = pos.ch;
      if (line) {
        if (pos.after === false || end == line.length) --start; else ++end;
        var startChar = line.charAt(start);
        var check = isWordChar(startChar) ? isWordChar :
                    /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} :
                    function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
        while (start > 0 && check(line.charAt(start - 1))) --start;
        while (end < line.length && check(line.charAt(end))) ++end;
      }
      return {from: {line: pos.line, ch: start}, to: {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;

      var indentString = "", pos = 0;
      if (options.indentWithTabs)
        for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";}
      if (pos < indentation) indentString += spaceStr(indentation - pos);

      if (indentString != curSpaceString)
        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; });
      frontier = 0;
      startWorker(100);
    }
    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.minWidth = widthForcer.style.left = "";
      } else {
        wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
        computeMaxLength();
        doc.iter(0, doc.size, function(line) {
          if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
        });
      }
      changes.push({from: 0, to: doc.size});
    }
    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(type, style) { this.lines = []; this.type = type; if (style) this.style = style; }
    TextMarker.prototype.clear = operation(function() {
      var min = Infinity, max = -Infinity;
      for (var i = 0; i < this.lines.length; ++i) {
        var line = this.lines[i];
        var span = getMarkedSpanFor(line.markedSpans, this, true);
        if (span.from != null || span.to != null) {
          var lineN = lineNo(line);
          min = Math.min(min, lineN); max = Math.max(max, lineN);
        }
      }
      if (min != Infinity)
        changes.push({from: min, to: max + 1});
      this.lines.length = 0;
    });
    TextMarker.prototype.find = function() {
      var from, to;
      for (var i = 0; i < this.lines.length; ++i) {
        var line = this.lines[i];
        var span = getMarkedSpanFor(line.markedSpans, this);
        if (span.from != null || span.to != null) {
          var found = lineNo(line);
          if (span.from != null) from = {line: found, ch: span.from};
          if (span.to != null) to = {line: found, ch: span.to};
        }
      }
      if (this.type == "bookmark") return from;
      return from && {from: from, to: to};
    };

    function markText(from, to, className, options) {
      from = clipPos(from); to = clipPos(to);
      var marker = new TextMarker("range", className);
      if (options) for (var opt in options) if (options.hasOwnProperty(opt))
        marker[opt] = options[opt];
      var curLine = from.line;
      doc.iter(curLine, to.line + 1, function(line) {
        var span = {from: curLine == from.line ? from.ch : null,
                    to: curLine == to.line ? to.ch : null,
                    marker: marker};
        (line.markedSpans || (line.markedSpans = [])).push(span);
        marker.lines.push(line);
        ++curLine;
      });
      changes.push({from: from.line, to: to.line + 1});
      return marker;
    }

    function setBookmark(pos) {
      pos = clipPos(pos);
      var marker = new TextMarker("bookmark"), line = getLine(pos.line);
      var span = {from: pos.ch, to: pos.ch, marker: marker};
      (line.markedSpans || (line.markedSpans = [])).push(span);
      marker.lines.push(line);
      return marker;
    }

    function findMarksAt(pos) {
      pos = clipPos(pos);
      var markers = [], spans = getLine(pos.line).markedSpans;
      if (spans) for (var i = 0; i < spans.length; ++i) {
        var span = spans[i];
        if ((span.from == null || span.from <= pos.ch) &&
            (span.to == null || span.to >= pos.ch))
          markers.push(span.marker);
      }
      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) {
            if (hidden && line.text.length == maxLine.text.length) {
              updateMaxLine = true;
            } else if (!hidden && line.text.length > maxLine.text.length) {
              maxLine = line; 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 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));
      var pre = lineContent(line, ch);
      removeChildrenAndAdd(measure, pre);
      var anchor = pre.anchor;
      var top = anchor.offsetTop, left = anchor.offsetLeft;
      // Older IEs report zero offsets for spans directly after a wrap
      if (ie && top == 0 && left == 0) {
        var backup = elt("span", "x");
        anchor.parentNode.insertBefore(backup, anchor.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) {
      var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th);
      if (heightPos < 0) return {line: 0, ch: 0};
      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};
      var wrongLine = false;
      function getX(len) {
        var sp = measureLine(lineObj, len);
        if (tw) {
          var off = Math.round(sp.top / th);
          wrongLine = off != innerOff;
          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) {
          var after = x - fromX < toX - x;
          return {line: lineNo, ch: after ? from : to, after: after};
        }
        var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
        if (middleX > x) {to = middle; toX = middleX; if (wrongLine) toX += 1000; }
        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, measurePre;
    function textHeight() {
      if (measurePre == null) {
        measurePre = elt("pre");
        for (var i = 0; i < 49; ++i) {
          measurePre.appendChild(document.createTextNode("x"));
          measurePre.appendChild(elt("br"));
        }
        measurePre.appendChild(document.createTextNode("x"));
      }
      var offsetHeight = lineDiv.clientHeight;
      if (offsetHeight == cachedHeightFor) return cachedHeight;
      cachedHeightFor = offsetHeight;
      removeChildrenAndAdd(measure, measurePre.cloneNode(true));
      cachedHeight = measure.firstChild.offsetHeight / 50 || 1;
      removeChildren(measure);
      return cachedHeight;
    }
    var cachedWidth, cachedWidthFor = 0;
    function charWidth() {
      if (scroller.clientWidth == cachedWidthFor) return cachedWidth;
      cachedWidthFor = scroller.clientWidth;
      var anchor = elt("span", "x");
      var pre = elt("pre", [anchor]);
      removeChildrenAndAdd(measure, pre);
      return (cachedWidth = anchor.offsetWidth || 10);
    }
    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);
    }
    var detectingSelectAll;
    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);";
      focusInput();
      resetInput(true);
      // Adds "Select all" to context menu in FF
      if (posEq(sel.from, sel.to)) input.value = prevInput = " ";

      function rehide() {
        inputDiv.style.position = "relative";
        input.style.cssText = oldCSS;
        if (ie_lt9) scrollbar.scrollTop = scrollPos;
        slowPoll();

        // Try to detect the user choosing select-all 
        if (input.selectionStart != null) {
          clearTimeout(detectingSelectAll);
          var extval = input.value = " " + (posEq(sel.from, sel.to) ? "" : input.value), i = 0;
          prevInput = " ";
          input.selectionStart = 1; input.selectionEnd = extval.length;
          detectingSelectAll = setTimeout(function poll(){
            if (prevInput == " " && input.selectionStart == 0)
              operation(commands.selectAll)(instance);
            else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500);
            else resetInput();
          }, 200);
        }
      }

      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";
      }, options.cursorBlinkRate);
    }

    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 pos = findStartLine(n), state = pos && getLine(pos-1).stateAfter;
      if (!state) state = startState(mode);
      else state = copyState(mode, state);
      doc.iter(pos, n, function(line) {
        line.process(mode, state, options.tabSize);
        line.stateAfter = (pos == n - 1 || pos % 5 == 0) ? copyState(mode, state) : null;
      });
      return state;
    }
    function highlightWorker() {
      if (frontier >= showingTo) return;
      var end = +new Date + options.workTime, state = copyState(mode, getStateBefore(frontier));
      var startFrontier = frontier;
      doc.iter(frontier, showingTo, function(line) {
        if (frontier >= showingFrom) { // Visible
          line.highlight(mode, state, options.tabSize);
          line.stateAfter = copyState(mode, state);
        } else {
          line.process(mode, state, options.tabSize);
          line.stateAfter = frontier % 5 == 0 ? copyState(mode, state) : null;
        }
        ++frontier;
        if (+new Date > end) {
          startWorker(options.workDelay);
          return true;
        }
      });
      if (showingTo > startFrontier && frontier >= showingFrom)
        operation(function() {changes.push({from: startFrontier, to: frontier});})();
    }
    function startWorker(time) {
      if (frontier < showingTo)
        highlight.set(time, 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) {
        var cursorWidth = widthForcer.offsetWidth, left = measureLine(maxLine, maxLine.text.length).left;
        if (!ie_lt8) {
          widthForcer.style.left = left + "px";
          lineSpace.style.minWidth = (left + cursorWidth) + "px";
        }
        maxLineChanged = false;
      }
      var newScrollPos, updated;
      if (selectionChanged) {
        var coords = calculateCursorCoords();
        newScrollPos = calculateScrollPos(coords.x, coords.y, coords.x, coords.yBot);
      }
      if (changes.length || newScrollPos && newScrollPos.scrollTop != null)
        updated = updateDisplay(changes, true, newScrollPos && newScrollPos.scrollTop);
      if (!updated) {
        if (selectionChanged) updateSelection();
        if (gutterDirty) updateGutter();
      }
      if (newScrollPos) scrollCursorIntoView();
      if (selectionChanged) restartBlink();

      if (focused && (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,
    onViewportChange: null,
    onGutterClick: null,
    onUpdate: null,
    onFocus: null, onBlur: null, onScroll: null,
    matchBrackets: false,
    cursorBlinkRate: 530,
    workTime: 100,
    workDelay: 200,
    pollInterval: 100,
    undoDepth: 40,
    tabindex: null,
    autofocus: null,
    lineNumberFormatter: function(integer) { return integer; }
  };

  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");
    var modeObj = mfactory(options, spec);
    if (modeExtensions.hasOwnProperty(spec.name)) {
      var exts = modeExtensions[spec.name];
      for (var prop in exts) if (exts.hasOwnProperty(prop)) modeObj[prop] = exts[prop];
    }
    modeObj.name = spec.name;
    return modeObj;
  };
  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 modeExtensions = CodeMirror.modeExtensions = {};
  CodeMirror.extendMode = function(mode, properties) {
    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
    for (var prop in properties) if (properties.hasOwnProperty(prop))
      exts[prop] = properties[prop];
  };

  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 === false) {
        if (stop) stop();
        return true;
      }
      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;
    // Set autofocus to true if this textarea is focused, or if it has
    // autofocus and no other element is focused.
    if (options.autofocus == null) {
      var hasFocus = document.body;
      // doc.activeElement occasionally throws on IE
      try { hasFocus = document.activeElement; } catch(e) {}
      options.autofocus = hasFocus == textarea ||
        textarea.getAttribute("autofocus") != null && hasFocus == document.body;
    }

    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;
        textarea.form.submit = function wrappedSubmit() {
          save();
          textarea.form.submit = realSubmit;
          textarea.form.submit();
          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;
  };

  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);

  // 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;
  CodeMirror.innerMode = function(mode, state) {
    while (mode.innerMode) {
      var info = mode.innerMode(state);
      state = info.state;
      mode = info.mode;
    }
    return info || {mode: mode, state: state};
  };

  // 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) || undefined;},
    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") {
        var cased = function(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 && match.index > 0) return null;
        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 MarkedSpan(from, to, marker) {
    this.from = from; this.to = to; this.marker = marker;
  }

  function getMarkedSpanFor(spans, marker, del) {
    if (spans) for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if (span.marker == marker) {
        if (del) spans.splice(i, 1);
        return span;
      }
    }
  }

  function markedSpansBefore(old, startCh, endCh) {
    if (old) for (var i = 0, nw; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
      if (startsBefore || marker.type == "bookmark" && span.from == startCh && span.from != endCh) {
        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
        (nw || (nw = [])).push({from: span.from,
                                to: endsAfter ? null : span.to,
                                marker: marker});
      }
    }
    return nw;
  }

  function markedSpansAfter(old, endCh) {
    if (old) for (var i = 0, nw; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
      if (endsAfter || marker.type == "bookmark" && span.from == endCh) {
        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
        (nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh,
                                to: span.to == null ? null : span.to - endCh,
                                marker: marker});
      }
    }
    return nw;
  }

  function updateMarkedSpans(oldFirst, oldLast, startCh, endCh, newText) {
    if (!oldFirst && !oldLast) return newText;
    // Get the spans that 'stick out' on both sides
    var first = markedSpansBefore(oldFirst, startCh);
    var last = markedSpansAfter(oldLast, endCh);

    // Next, merge those two ends
    var sameLine = newText.length == 1, offset = lst(newText).length + (sameLine ? startCh : 0);
    if (first) {
      // Fix up .to properties of first
      for (var i = 0; i < first.length; ++i) {
        var span = first[i];
        if (span.to == null) {
          var found = getMarkedSpanFor(last, span.marker);
          if (!found) span.to = startCh;
          else if (sameLine) span.to = found.to == null ? null : found.to + offset;
        }
      }
    }
    if (last) {
      // Fix up .from in last (or move them into first in case of sameLine)
      for (var i = 0; i < last.length; ++i) {
        var span = last[i];
        if (span.to != null) span.to += offset;
        if (span.from == null) {
          var found = getMarkedSpanFor(first, span.marker);
          if (!found) {
            span.from = offset;
            if (sameLine) (first || (first = [])).push(span);
          }
        } else {
          span.from += offset;
          if (sameLine) (first || (first = [])).push(span);
        }
      }
    }

    var newMarkers = [newHL(newText[0], first)];
    if (!sameLine) {
      // Fill gap with whole-line-spans
      var gap = newText.length - 2, gapMarkers;
      if (gap > 0 && first)
        for (var i = 0; i < first.length; ++i)
          if (first[i].to == null)
            (gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker});
      for (var i = 0; i < gap; ++i)
        newMarkers.push(newHL(newText[i+1], gapMarkers));
      newMarkers.push(newHL(lst(newText), last));
    }
    return newMarkers;
  }

  // hl stands for history-line, a data structure that can be either a
  // string (line without markers) or a {text, markedSpans} object.
  function hlText(val) { return typeof val == "string" ? val : val.text; }
  function hlSpans(val) { return typeof val == "string" ? null : val.markedSpans; }
  function newHL(text, spans) { return spans ? {text: text, markedSpans: spans} : text; }

  function detachMarkedSpans(line) {
    var spans = line.markedSpans;
    if (!spans) return;
    for (var i = 0; i < spans.length; ++i) {
      var lines = spans[i].marker.lines;
      var ix = indexOf(lines, line);
      lines.splice(ix, 1);
    }
    line.markedSpans = null;
  }

  function attachMarkedSpans(line, spans) {
    if (!spans) return;
    for (var i = 0; i < spans.length; ++i)
      var marker = spans[i].marker.lines.push(line);
    line.markedSpans = spans;
  }

  // When measuring the position of the end of a line, different
  // browsers require different approaches. If an empty span is added,
  // many browsers report bogus offsets. Of those, some (Webkit,
  // recent IE) will accept a space without moving the whole span to
  // the next line when wrapping it, others work with a zero-width
  // space.
  var eolSpanContent = " ";
  if (gecko || (ie && !ie_lt8)) eolSpanContent = "\u200b";
  else if (opera) eolSpanContent = "";

  // Line objects. These hold state related to a line, including
  // highlighting info (the styles array).
  function Line(text, markedSpans) {
    this.text = text;
    this.height = 1;
    attachMarkedSpans(this, markedSpans);
  }
  Line.prototype = {
    update: function(text, markedSpans) {
      this.text = text;
      this.stateAfter = this.styles = null;
      detachMarkedSpans(this);
      attachMarkedSpans(this, markedSpans);
    },
    // 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 || (this.styles = []);
      var pos = st.length = 0;
      if (this.text == "" && mode.blankLine) mode.blankLine(state);
      while (!stream.eol()) {
        var style = mode.token(stream, state), substr = stream.current();
        stream.start = stream.pos;
        if (pos && st[pos-1] == style) {
          st[pos-2] += substr;
        } else if (substr) {
          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;
        }
      }
    },
    process: function(mode, state, tabSize) {
      var stream = new StringStream(this.text, tabSize);
      if (this.text == "" && mode.blankLine) mode.blankLine(state);
      while (!stream.eol() && stream.pos <= 5000) {
        mode.token(stream, state);
        stream.start = stream.pos;
      }
    },
    // 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, tabSize, ch) {
      var txt = this.text, stream = new StringStream(txt, tabSize);
      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.
    getContent: function(tabSize, wrapAt, compensateForWrapping) {
      var first = true, col = 0, specials = /[\t\u0000-\u0019\u200b\u2028\u2029\uFEFF]/g;
      var pre = elt("pre");
      function span_(html, 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 (!specials.test(text)) {
          col += text.length;
          var content = document.createTextNode(text);
        } else {
          var content = document.createDocumentFragment(), pos = 0;
          while (true) {
            specials.lastIndex = pos;
            var m = specials.exec(text);
            var skipped = m ? m.index - pos : text.length - pos;
            if (skipped) {
              content.appendChild(document.createTextNode(text.slice(pos, pos + skipped)));
              col += skipped;
            }
            if (!m) break;
            pos += skipped + 1;
            if (m[0] == "\t") {
              var tabWidth = tabSize - col % tabSize;
              content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
              col += tabWidth;
            } else {
              var token = elt("span", "\u2022", "cm-invalidchar");
              token.title = "\\u" + m[0].charCodeAt(0).toString(16);
              content.appendChild(token);
              col += 1;
            }
          }
        }
        if (style) html.appendChild(elt("span", [content], style));
        else html.appendChild(content);
      }
      var span = span_;
      if (wrapAt != null) {
        var outPos = 0, anchor = pre.anchor = elt("span");
        span = function(html, text, style) {
          var l = text.length;
          if (wrapAt >= outPos && wrapAt < outPos + l) {
            if (wrapAt > outPos) {
              span_(html, text.slice(0, wrapAt - outPos), style);
              // See comment at the definition of spanAffectsWrapping
              if (compensateForWrapping) html.appendChild(elt("wbr"));
            }
            html.appendChild(anchor);
            var cut = wrapAt - outPos;
            span_(anchor, opera ? text.slice(cut, cut + 1) : text.slice(cut), style);
            if (opera) span_(html, text.slice(cut + 1), style);
            wrapAt--;
            outPos += l;
          } else {
            outPos += l;
            span_(html, text, style);
            if (outPos == wrapAt && outPos == len) {
              setTextContent(anchor, eolSpanContent);
              html.appendChild(anchor);
            }
            // 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.markedSpans;
      var len = allText.length;
      function styleToClass(style) {
        if (!style) return null;
        return "cm-" + style.replace(/ +/g, " cm-");
      }
      if (!allText && wrapAt == null) {
        span(pre, " ");
      } 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(pre, str, styleToClass(style));
        }
      } else {
        marked.sort(function(a, b) { return a.from - b.from; });
        var pos = 0, i = 0, text = "", style, sg = 0;
        var nextChange = marked[0].from || 0, marks = [], markpos = 0;
        var advanceMarks = function() {
          var m;
          while (markpos < marked.length &&
                 ((m = marked[markpos]).from == pos || m.from == null)) {
            if (m.marker.type == "range") 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;
            if (to == null) 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) {
                var mark = marks[j];
                appliedStyle = (appliedStyle ? appliedStyle + " " : "") + mark.marker.style;
                if (mark.marker.endStyle && mark.to === Math.min(end, upto)) appliedStyle += " " + mark.marker.endStyle;
                if (mark.marker.startStyle && mark.from === pos) appliedStyle += " " + mark.marker.startStyle;
              }
              span(pre, 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 pre;
    },
    cleanUp: function() {
      this.parent = null;
      detachMarkedSpans(this);
    }
  };

  // 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 = lst(this.done), last = cur && lst(cur);
      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) {
    var b = e.which;
    if (b == null) {
      if (e.button & 1) b = 1;
      else if (e.button & 2) b = 3;
      else if (e.button & 4) b = 2;
    }
    if (mac && e.ctrlKey && b == 1) b = 3;
    return b;
  }

  // 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";}};

  // 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 = elt('div');
    return "draggable" in div || "dragDrop" in div;
  }();

  // Feature-detect whether newlines in textareas are converted to \r\n
  var lineSep = function () {
    var te = elt("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 eltOffset(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;
  }

  function eltText(node) {
    return node.textContent || node.innerText || node.nodeValue || "";
  }

  var spaceStrs = [""];
  function spaceStr(n) {
    while (spaceStrs.length <= n)
      spaceStrs.push(lst(spaceStrs) + " ");
    return spaceStrs[n];
  }

  function lst(arr) { return arr[arr.length-1]; }

  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};}

  function elt(tag, content, className, style) {
    var e = document.createElement(tag);
    if (className) e.className = className;
    if (style) e.style.cssText = style;
    if (typeof content == "string") setTextContent(e, content);
    else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
    return e;
  }
  function removeChildren(e) {
    e.innerHTML = "";
    return e;
  }
  function removeChildrenAndAdd(parent, e) {
    removeChildren(parent).appendChild(e);
  }
  function setTextContent(e, str) {
    if (ie_lt9) {
      e.innerHTML = "";
      e.appendChild(document.createTextNode(str));
    } else e.textContent = str;
  }

  // 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, result = [], l = string.length;
    while (pos <= l) {
      var nl = string.indexOf("\n", pos);
      if (nl == -1) nl = string.length;
      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
      var rt = line.indexOf("\r");
      if (rt != -1) {
        result.push(line.slice(0, rt));
        pos += rt + 1;
      } else {
        result.push(line);
        pos = nl + 1;
      }
    }
    return result;
  } : function(string){return string.split(/\r\n?|\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;
  })();

  CodeMirror.version = "2.34";

  return CodeMirror;
})();










































CodeMirror.defineMode("css", function(config) {
  var indentUnit = config.indentUnit, type;
  
  var atMediaTypes = keySet([
    "all", "aural", "braille", "handheld", "print", "projection", "screen",
    "tty", "tv", "embossed"
  ]);
  
  var atMediaFeatures = keySet([
    "width", "min-width", "max-width", "height", "min-height", "max-height",
    "device-width", "min-device-width", "max-device-width", "device-height",
    "min-device-height", "max-device-height", "aspect-ratio",
    "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
    "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
    "max-color", "color-index", "min-color-index", "max-color-index",
    "monochrome", "min-monochrome", "max-monochrome", "resolution",
    "min-resolution", "max-resolution", "scan", "grid"
  ]);

  var propertyKeywords = keySet([
    "align-content", "align-items", "align-self", "alignment-adjust",
    "alignment-baseline", "anchor-point", "animation", "animation-delay",
    "animation-direction", "animation-duration", "animation-iteration-count",
    "animation-name", "animation-play-state", "animation-timing-function",
    "appearance", "azimuth", "backface-visibility", "background",
    "background-attachment", "background-clip", "background-color",
    "background-image", "background-origin", "background-position",
    "background-repeat", "background-size", "baseline-shift", "binding",
    "bleed", "bookmark-label", "bookmark-level", "bookmark-state",
    "bookmark-target", "border", "border-bottom", "border-bottom-color",
    "border-bottom-left-radius", "border-bottom-right-radius",
    "border-bottom-style", "border-bottom-width", "border-collapse",
    "border-color", "border-image", "border-image-outset",
    "border-image-repeat", "border-image-slice", "border-image-source",
    "border-image-width", "border-left", "border-left-color",
    "border-left-style", "border-left-width", "border-radius", "border-right",
    "border-right-color", "border-right-style", "border-right-width",
    "border-spacing", "border-style", "border-top", "border-top-color",
    "border-top-left-radius", "border-top-right-radius", "border-top-style",
    "border-top-width", "border-width", "bottom", "box-decoration-break",
    "box-shadow", "box-sizing", "break-after", "break-before", "break-inside",
    "caption-side", "clear", "clip", "color", "color-profile", "column-count",
    "column-fill", "column-gap", "column-rule", "column-rule-color",
    "column-rule-style", "column-rule-width", "column-span", "column-width",
    "columns", "content", "counter-increment", "counter-reset", "crop", "cue",
    "cue-after", "cue-before", "cursor", "direction", "display",
    "dominant-baseline", "drop-initial-after-adjust",
    "drop-initial-after-align", "drop-initial-before-adjust",
    "drop-initial-before-align", "drop-initial-size", "drop-initial-value",
    "elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis",
    "flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap",
    "float", "float-offset", "font", "font-feature-settings", "font-family",
    "font-kerning", "font-language-override", "font-size", "font-size-adjust",
    "font-stretch", "font-style", "font-synthesis", "font-variant",
    "font-variant-alternates", "font-variant-caps", "font-variant-east-asian",
    "font-variant-ligatures", "font-variant-numeric", "font-variant-position",
    "font-weight", "grid-cell", "grid-column", "grid-column-align",
    "grid-column-sizing", "grid-column-span", "grid-columns", "grid-flow",
    "grid-row", "grid-row-align", "grid-row-sizing", "grid-row-span",
    "grid-rows", "grid-template", "hanging-punctuation", "height", "hyphens",
    "icon", "image-orientation", "image-rendering", "image-resolution",
    "inline-box-align", "justify-content", "left", "letter-spacing",
    "line-break", "line-height", "line-stacking", "line-stacking-ruby",
    "line-stacking-shift", "line-stacking-strategy", "list-style",
    "list-style-image", "list-style-position", "list-style-type", "margin",
    "margin-bottom", "margin-left", "margin-right", "margin-top",
    "marker-offset", "marks", "marquee-direction", "marquee-loop",
    "marquee-play-count", "marquee-speed", "marquee-style", "max-height",
    "max-width", "min-height", "min-width", "move-to", "nav-down", "nav-index",
    "nav-left", "nav-right", "nav-up", "opacity", "order", "orphans", "outline",
    "outline-color", "outline-offset", "outline-style", "outline-width",
    "overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y",
    "padding", "padding-bottom", "padding-left", "padding-right", "padding-top",
    "page", "page-break-after", "page-break-before", "page-break-inside",
    "page-policy", "pause", "pause-after", "pause-before", "perspective",
    "perspective-origin", "pitch", "pitch-range", "play-during", "position",
    "presentation-level", "punctuation-trim", "quotes", "rendering-intent",
    "resize", "rest", "rest-after", "rest-before", "richness", "right",
    "rotation", "rotation-point", "ruby-align", "ruby-overhang",
    "ruby-position", "ruby-span", "size", "speak", "speak-as", "speak-header",
    "speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set",
    "tab-size", "table-layout", "target", "target-name", "target-new",
    "target-position", "text-align", "text-align-last", "text-decoration",
    "text-decoration-color", "text-decoration-line", "text-decoration-skip",
    "text-decoration-style", "text-emphasis", "text-emphasis-color",
    "text-emphasis-position", "text-emphasis-style", "text-height",
    "text-indent", "text-justify", "text-outline", "text-shadow",
    "text-space-collapse", "text-transform", "text-underline-position",
    "text-wrap", "top", "transform", "transform-origin", "transform-style",
    "transition", "transition-delay", "transition-duration",
    "transition-property", "transition-timing-function", "unicode-bidi",
    "vertical-align", "visibility", "voice-balance", "voice-duration",
    "voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress",
    "voice-volume", "volume", "white-space", "widows", "width", "word-break",
    "word-spacing", "word-wrap", "z-index"
  ]);

  var colorKeywords = keySet([
    "black", "silver", "gray", "white", "maroon", "red", "purple", "fuchsia",
    "green", "lime", "olive", "yellow", "navy", "blue", "teal", "aqua"
  ]);
  
  var valueKeywords = keySet([
    "above", "absolute", "activeborder", "activecaption", "afar",
    "after-white-space", "ahead", "alias", "all", "all-scroll", "alternate",
    "always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
    "arabic-indic", "armenian", "asterisks", "auto", "avoid", "background",
    "backwards", "baseline", "below", "bidi-override", "binary", "bengali",
    "blink", "block", "block-axis", "bold", "bolder", "border", "border-box",
    "both", "bottom", "break-all", "break-word", "button", "button-bevel",
    "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "cambodian",
    "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
    "cell", "center", "checkbox", "circle", "cjk-earthly-branch",
    "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
    "col-resize", "collapse", "compact", "condensed", "contain", "content",
    "content-box", "context-menu", "continuous", "copy", "cover", "crop",
    "cross", "crosshair", "currentcolor", "cursive", "dashed", "decimal",
    "decimal-leading-zero", "default", "default-button", "destination-atop",
    "destination-in", "destination-out", "destination-over", "devanagari",
    "disc", "discard", "document", "dot-dash", "dot-dot-dash", "dotted",
    "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
    "element", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
    "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
    "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
    "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
    "ethiopic-halehame-gez", "ethiopic-halehame-om-et",
    "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
    "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et",
    "ethiopic-halehame-tig", "ew-resize", "expanded", "extra-condensed",
    "extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "footnotes",
    "forwards", "from", "geometricPrecision", "georgian", "graytext", "groove",
    "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hebrew",
    "help", "hidden", "hide", "higher", "highlight", "highlighttext",
    "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "icon", "ignore",
    "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
    "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
    "inline-block", "inline-table", "inset", "inside", "intrinsic", "invert",
    "italic", "justify", "kannada", "katakana", "katakana-iroha", "khmer",
    "landscape", "lao", "large", "larger", "left", "level", "lighter",
    "line-through", "linear", "lines", "list-item", "listbox", "listitem",
    "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
    "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
    "lower-roman", "lowercase", "ltr", "malayalam", "match",
    "media-controls-background", "media-current-time-display",
    "media-fullscreen-button", "media-mute-button", "media-play-button",
    "media-return-to-realtime-button", "media-rewind-button",
    "media-seek-back-button", "media-seek-forward-button", "media-slider",
    "media-sliderthumb", "media-time-remaining-display", "media-volume-slider",
    "media-volume-slider-container", "media-volume-sliderthumb", "medium",
    "menu", "menulist", "menulist-button", "menulist-text",
    "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic",
    "mix", "mongolian", "monospace", "move", "multiple", "myanmar", "n-resize",
    "narrower", "navy", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
    "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
    "ns-resize", "nw-resize", "nwse-resize", "oblique", "octal", "open-quote",
    "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
    "outside", "overlay", "overline", "padding", "padding-box", "painted",
    "paused", "persian", "plus-darker", "plus-lighter", "pointer", "portrait",
    "pre", "pre-line", "pre-wrap", "preserve-3d", "progress", "push-button",
    "radio", "read-only", "read-write", "read-write-plaintext-only", "relative",
    "repeat", "repeat-x", "repeat-y", "reset", "reverse", "rgb", "rgba",
    "ridge", "right", "round", "row-resize", "rtl", "run-in", "running",
    "s-resize", "sans-serif", "scroll", "scrollbar", "se-resize", "searchfield",
    "searchfield-cancel-button", "searchfield-decoration",
    "searchfield-results-button", "searchfield-results-decoration",
    "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama",
    "single", "skip-white-space", "slide", "slider-horizontal",
    "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
    "small", "small-caps", "small-caption", "smaller", "solid", "somali",
    "source-atop", "source-in", "source-out", "source-over", "space", "square",
    "square-button", "start", "static", "status-bar", "stretch", "stroke",
    "sub", "subpixel-antialiased", "super", "sw-resize", "table",
    "table-caption", "table-cell", "table-column", "table-column-group",
    "table-footer-group", "table-header-group", "table-row", "table-row-group",
    "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
    "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
    "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
    "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
    "transparent", "ultra-condensed", "ultra-expanded", "underline", "up",
    "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
    "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
    "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted",
    "visibleStroke", "visual", "w-resize", "wait", "wave", "white", "wider",
    "window", "windowframe", "windowtext", "x-large", "x-small", "xor",
    "xx-large", "xx-small", "yellow"
  ]);

  function keySet(array) { var keys = {}; for (var i = 0; i < array.length; ++i) keys[array[i]] = true; return keys; }
  function ret(style, tp) {type = tp; return style;}

  function tokenBase(stream, state) {
    var ch = stream.next();
    if (ch == "@") {stream.eatWhile(/[\w\\\-]/); return ret("def", 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("atom", "hash");
    }
    else if (ch == "!") {
      stream.match(/^\s*\w*/);
      return ret("keyword", "important");
    }
    else if (/\d/.test(ch)) {
      stream.eatWhile(/[\w.%]/);
      return ret("number", "unit");
    }
    else if (ch === "-") {
      if (/\d/.test(stream.peek())) {
        stream.eatWhile(/[\w.%]/);
        return ret("number", "unit");
      } else if (stream.match(/^[^-]+-/)) {
        return ret("meta", type);
      }
    }
    else if (/[,+>*\/]/.test(ch)) {
      return ret(null, "select-op");
    }
    else if (ch == "." && stream.match(/^\w+/)) {
      return ret("qualifier", type);
    }
    else if (ch == ":") {
      return ret("operator", ch);
    }
    else if (/[;{}\[\]\(\)]/.test(ch)) {
      return ret(null, ch);
    }
    else {
      stream.eatWhile(/[\w\\\-]/);
      return ret("property", "variable");
    }
  }

  function tokenCComment(stream, state) {
    var maybeEnd = false, ch;
    while ((ch = stream.next()) != null) {
      if (maybeEnd && ch == "/") {
        state.tokenize = tokenBase;
        break;
      }
      maybeEnd = (ch == "*");
    }
    return ret("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("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("string", "string");
    };
  }

  return {
    startState: function(base) {
      return {tokenize: tokenBase,
              baseIndent: base || 0,
              stack: []};
    },

    token: function(stream, state) {
      
      // Use these terms when applicable (see http://www.xanthir.com/blog/b4E50)
      // 
      // rule** or **ruleset:
      // A selector + braces combo, or an at-rule.
      // 
      // declaration block:
      // A sequence of declarations.
      // 
      // declaration:
      // A property + colon + value combo.
      // 
      // property value:
      // The entire value of a property.
      // 
      // component value:
      // A single piece of a property value. Like the 5px in
      // text-shadow: 0 0 5px blue;. Can also refer to things that are
      // multiple terms, like the 1-4 terms that make up the background-size
      // portion of the background shorthand.
      // 
      // term:
      // The basic unit of author-facing CSS, like a single number (5),
      // dimension (5px), string ("foo"), or function. Officially defined
      //  by the CSS 2.1 grammar (look for the 'term' production)
      // 
      // 
      // simple selector:
      // A single atomic selector, like a type selector, an attr selector, a
      // class selector, etc.
      // 
      // compound selector:
      // One or more simple selectors without a combinator. div.example is
      // compound, div > .example is not.
      // 
      // complex selector:
      // One or more compound selectors chained with combinators.
      // 
      // combinator:
      // The parts of selectors that express relationships. There are four
      // currently - the space (descendant combinator), the greater-than
      // bracket (child combinator), the plus sign (next sibling combinator),
      // and the tilda (following sibling combinator).
      // 
      // sequence of selectors:
      // One or more of the named type of selector chained with commas.

      if (stream.eatSpace()) return null;
      var style = state.tokenize(stream, state);

      // Changing style returned based on context
      var context = state.stack[state.stack.length-1];
      if (style == "property") {
        if (context == "propertyValue"){
          if (valueKeywords[stream.current()]) {
            style = "string-2";
          } else if (colorKeywords[stream.current()]) {
            style = "keyword";
          } else {
            style = "variable-2";
          }
        } else if (context == "rule") {
          if (!propertyKeywords[stream.current()]) {
            style += " error";
          }
        } else if (!context || context == "@media{") {
          style = "tag";
        } else if (context == "@media") {
          if (atMediaTypes[stream.current()]) {
            style = "attribute"; // Known attribute
          } else if (/^(only|not)$/i.test(stream.current())) {
            style = "keyword";
          } else if (stream.current().toLowerCase() == "and") {
            style = "error"; // "and" is only allowed in @mediaType
          } else if (atMediaFeatures[stream.current()]) {
            style = "error"; // Known property, should be in @mediaType(
          } else {
            // Unknown, expecting keyword or attribute, assuming attribute
            style = "attribute error";
          }
        } else if (context == "@mediaType") {
          if (atMediaTypes[stream.current()]) {
            style = "attribute";
          } else if (stream.current().toLowerCase() == "and") {
            style = "operator";
          } else if (/^(only|not)$/i.test(stream.current())) {
            style = "error"; // Only allowed in @media
          } else if (atMediaFeatures[stream.current()]) {
            style = "error"; // Known property, should be in parentheses
          } else {
            // Unknown attribute or property, but expecting property (preceded
            // by "and"). Should be in parentheses
            style = "error";
          }
        } else if (context == "@mediaType(") {
          if (propertyKeywords[stream.current()]) {
            // do nothing, remains "property"
          } else if (atMediaTypes[stream.current()]) {
            style = "error"; // Known property, should be in parentheses
          } else if (stream.current().toLowerCase() == "and") {
            style = "operator";
          } else if (/^(only|not)$/i.test(stream.current())) {
            style = "error"; // Only allowed in @media
          } else {
            style += " error";
          }
        } else {
          style = "error";
        }
      } else if (style == "atom") {
        if(!context || context == "@media{") {
          style = "builtin";
        } else if (context == "propertyValue") {
          if (!/^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/.test(stream.current())) {
            style += " error";
          }
        } else {
          style = "error";
        }
      } else if (context == "@media" && type == "{") {
        style = "error";
      }

      // Push/pop context stack
      if (type == "{") {
        if (context == "@media" || context == "@mediaType") {
          state.stack.pop();
          state.stack[state.stack.length-1] = "@media{";
        }
        else state.stack.push("rule");
      }
      else if (type == "}") {
        state.stack.pop();
        if (context == "propertyValue") state.stack.pop();
      }
      else if (type == "@media") state.stack.push("@media");
      else if (context == "@media" && /\b(keyword|attribute)\b/.test(style))
        state.stack.push("@mediaType");
      else if (context == "@mediaType" && stream.current() == ",") state.stack.pop();
      else if (context == "@mediaType" && type == "(") state.stack.push("@mediaType(");
      else if (context == "@mediaType(" && type == ")") state.stack.pop();
      else if (context == "rule" && type == ":") state.stack.push("propertyValue");
      else if (context == "propertyValue" && type == ";") state.stack.pop();
      return style;
    },

    indent: function(state, textAfter) {
      var n = state.stack.length;
      if (/^\}/.test(textAfter))
        n -= state.stack[state.stack.length-1] == "propertyValue" ? 2 : 1;
      return state.baseIndent + n * indentUnit;
    },

    electricChars: "}"
  };
});

CodeMirror.defineMIME("text/css", "css");


































































/*
 Copyright (C) 2013 Sencha Inc.
 Copyright (C) 2012 Sencha Inc.
 Copyright (C) 2011 Sencha Inc.

 Author: Ariya Hidayat.

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
*/

/*jslint continue: true, indent: 4 */
/*global exports:true, module:true, window:true */

(function () {

    'use strict';

    function cssbeautify(style, opt) {

        var options, index = 0, length = style.length, blocks, formatted = '',
            ch, ch2, str, state, State, depth, quote, comment,
            openbracesuffix = true,
            autosemicolon = false,
            trimRight;

        options = arguments.length > 1 ? opt : {};
        if (typeof options.indent === 'undefined') {
            options.indent = '    ';
        }
        if (typeof options.openbrace === 'string') {
            openbracesuffix = (options.openbrace === 'end-of-line');
        }
        if (typeof options.autosemicolon === 'boolean') {
            autosemicolon = options.autosemicolon;
        }

        function isWhitespace(c) {
            return (c === ' ') || (c === '\n') || (c === '\t') || (c === '\r') || (c === '\f');
        }

        function isQuote(c) {
            return (c === '\'') || (c === '"');
        }

        // FIXME: handle Unicode characters
        function isName(c) {
            return (ch >= 'a' && ch <= 'z') ||
                (ch >= 'A' && ch <= 'Z') ||
                (ch >= '0' && ch <= '9') ||
                '-_*.:#[]'.indexOf(c) >= 0;
        }

        function appendIndent() {
            var i;
            for (i = depth; i > 0; i -= 1) {
                formatted += options.indent;
            }
        }

        function openBlock() {
            formatted = trimRight(formatted);
            if (openbracesuffix) {
                formatted += ' {';
            } else {
                formatted += '\n';
                appendIndent();
                formatted += '{';
            }
            if (ch2 !== '\n') {
                formatted += '\n';
            }
            depth += 1;
        }

        function closeBlock() {
            var last;
            depth -= 1;
            formatted = trimRight(formatted);

            if (formatted.length > 0 && autosemicolon) {
                last = formatted.charAt(formatted.length - 1);
                if (last !== ';' && last !== '{') {
                    formatted += ';';
                }
            }

            formatted += '\n';
            appendIndent();
            formatted += '}';
            blocks.push(formatted);
            formatted = '';
        }

        if (String.prototype.trimRight) {
            trimRight = function (s) {
                return s.trimRight();
            };
        } else {
            // old Internet Explorer
            trimRight = function (s) {
                return s.replace(/\s+$/, '');
            };
        }

        State = {
            Start: 0,
            AtRule: 1,
            Block: 2,
            Selector: 3,
            Ruleset: 4,
            Property: 5,
            Separator: 6,
            Expression: 7,
            URL: 8
        };

        depth = 0;
        state = State.Start;
        comment = false;
        blocks = [];

        // We want to deal with LF (\n) only
        style = style.replace(/\r\n/g, '\n');

        while (index < length) {
            ch = style.charAt(index);
            ch2 = style.charAt(index + 1);
            index += 1;

            // Inside a string literal?
            if (isQuote(quote)) {
                formatted += ch;
                if (ch === quote) {
                    quote = null;
                }
                if (ch === '\\' && ch2 === quote) {
                    // Don't treat escaped character as the closing quote
                    formatted += ch2;
                    index += 1;
                }
                continue;
            }

            // Starting a string literal?
            if (isQuote(ch)) {
                formatted += ch;
                quote = ch;
                continue;
            }

            // Comment
            if (comment) {
                formatted += ch;
                if (ch === '*' && ch2 === '/') {
                    comment = false;
                    formatted += ch2;
                    index += 1;
                }
                continue;
            }
            if (ch === '/' && ch2 === '*') {
                comment = true;
                formatted += ch;
                formatted += ch2;
                index += 1;
                continue;
            }

            if (state === State.Start) {

                if (blocks.length === 0) {
                    if (isWhitespace(ch) && formatted.length === 0) {
                        continue;
                    }
                }

                // Copy white spaces and control characters
                if (ch <= ' ' || ch.charCodeAt(0) >= 128) {
                    state = State.Start;
                    formatted += ch;
                    continue;
                }

                // Selector or at-rule
                if (isName(ch) || (ch === '@')) {

                    // Clear trailing whitespaces and linefeeds.
                    str = trimRight(formatted);

                    if (str.length === 0) {
                        // If we have empty string after removing all the trailing
                        // spaces, that means we are right after a block.
                        // Ensure a blank line as the separator.
                        if (blocks.length > 0) {
                            formatted = '\n\n';
                        }
                    } else {
                        // After finishing a ruleset or directive statement,
                        // there should be one blank line.
                        if (str.charAt(str.length - 1) === '}' ||
                                str.charAt(str.length - 1) === ';') {

                            formatted = str + '\n\n';
                        } else {
                            // After block comment, keep all the linefeeds but
                            // start from the first column (remove whitespaces prefix).
                            while (true) {
                                ch2 = formatted.charAt(formatted.length - 1);
                                if (ch2 !== ' ' && ch2.charCodeAt(0) !== 9) {
                                    break;
                                }
                                formatted = formatted.substr(0, formatted.length - 1);
                            }
                        }
                    }
                    formatted += ch;
                    state = (ch === '@') ? State.AtRule : State.Selector;
                    continue;
                }
            }

            if (state === State.AtRule) {

                // ';' terminates a statement.
                if (ch === ';') {
                    formatted += ch;
                    state = State.Start;
                    continue;
                }

                // '{' starts a block
                if (ch === '{') {
                    str = trimRight(formatted);
                    openBlock();
                    state = (str === '@font-face') ? State.Ruleset : State.Block;
                    continue;
                }

                formatted += ch;
                continue;
            }

            if (state === State.Block) {

                // Selector
                if (isName(ch)) {

                    // Clear trailing whitespaces and linefeeds.
                    str = trimRight(formatted);

                    if (str.length === 0) {
                        // If we have empty string after removing all the trailing
                        // spaces, that means we are right after a block.
                        // Ensure a blank line as the separator.
                        if (blocks.length > 0) {
                            formatted = '\n\n';
                        }
                    } else {
                        // Insert blank line if necessary.
                        if (str.charAt(str.length - 1) === '}') {
                            formatted = str + '\n\n';
                        } else {
                            // After block comment, keep all the linefeeds but
                            // start from the first column (remove whitespaces prefix).
                            while (true) {
                                ch2 = formatted.charAt(formatted.length - 1);
                                if (ch2 !== ' ' && ch2.charCodeAt(0) !== 9) {
                                    break;
                                }
                                formatted = formatted.substr(0, formatted.length - 1);
                            }
                        }
                    }

                    appendIndent();
                    formatted += ch;
                    state = State.Selector;
                    continue;
                }

                // '}' resets the state.
                if (ch === '}') {
                    closeBlock();
                    state = State.Start;
                    continue;
                }

                formatted += ch;
                continue;
            }

            if (state === State.Selector) {

                // '{' starts the ruleset.
                if (ch === '{') {
                    openBlock();
                    state = State.Ruleset;
                    continue;
                }

                // '}' resets the state.
                if (ch === '}') {
                    closeBlock();
                    state = State.Start;
                    continue;
                }

                formatted += ch;
                continue;
            }

            if (state === State.Ruleset) {

                // '}' finishes the ruleset.
                if (ch === '}') {
                    closeBlock();
                    state = State.Start;
                    if (depth > 0) {
                        state = State.Block;
                    }
                    continue;
                }

                // Make sure there is no blank line or trailing spaces inbetween
                if (ch === '\n') {
                    formatted = trimRight(formatted);
                    formatted += '\n';
                    continue;
                }

                // property name
                if (!isWhitespace(ch)) {
                    formatted = trimRight(formatted);
                    formatted += '\n';
                    appendIndent();
                    formatted += ch;
                    state = State.Property;
                    continue;
                }
                formatted += ch;
                continue;
            }

            if (state === State.Property) {

                // ':' concludes the property.
                if (ch === ':') {
                    formatted = trimRight(formatted);
                    formatted += ': ';
                    state = State.Expression;
                    if (isWhitespace(ch2)) {
                        state = State.Separator;
                    }
                    continue;
                }

                // '}' finishes the ruleset.
                if (ch === '}') {
                    closeBlock();
                    state = State.Start;
                    if (depth > 0) {
                        state = State.Block;
                    }
                    continue;
                }

                formatted += ch;
                continue;
            }

            if (state === State.Separator) {

                // Non-whitespace starts the expression.
                if (!isWhitespace(ch)) {
                    formatted += ch;
                    state = State.Expression;
                    continue;
                }

                // Anticipate string literal.
                if (isQuote(ch2)) {
                    state = State.Expression;
                }

                continue;
            }

            if (state === State.Expression) {

                // '}' finishes the ruleset.
                if (ch === '}') {
                    closeBlock();
                    state = State.Start;
                    if (depth > 0) {
                        state = State.Block;
                    }
                    continue;
                }

                // ';' completes the declaration.
                if (ch === ';') {
                    formatted = trimRight(formatted);
                    formatted += ';\n';
                    state = State.Ruleset;
                    continue;
                }

                formatted += ch;

                if (ch === '(') {
                    if (formatted.charAt(formatted.length - 2) === 'l' &&
                            formatted.charAt(formatted.length - 3) === 'r' &&
                            formatted.charAt(formatted.length - 4) === 'u') {

                        // URL starts with '(' and closes with ')'.
                        state = State.URL;
                        continue;
                    }
                }

                continue;
            }

            if (state === State.URL) {


                // ')' finishes the URL (only if it is not escaped).
                if (ch === ')' && formatted.charAt(formatted.length - 1 !== '\\')) {
                    formatted += ch;
                    state = State.Expression;
                    continue;
                }
            }

            // The default action is to copy the character (to prevent
            // infinite loop).
            formatted += ch;
        }

        formatted = blocks.join('') + formatted;

        return formatted;
    }

    if (typeof exports !== 'undefined') {
        // Node.js module.
        module.exports = exports = cssbeautify;
    } else if (typeof window === 'object') {
        // Browser loading.
        window.cssbeautify = cssbeautify;
    }

}());





















































/*global cssbeautify:true, document:true, window:true, CodeMirror: true */

var editor, viewer, formatId;

function format() {
    'use strict';
    if (formatId) {
        window.clearTimeout(formatId);
    }
    formatId = window.setTimeout(function () {
        var options, raw, beautified;

        options = {
            indent: '    '
        };

        if (document.getElementById('tab').checked) {
            options.indent = '\t';
        } else if (document.getElementById('twospaces').checked) {
            options.indent = '  ';
        }

        if (document.getElementById('openbrace-separate-line').checked) {
            options.openbrace = 'separate-line';
        }

        if (document.getElementById('autosemicolon').checked) {
            options.autosemicolon = true;
        }

        if (typeof editor === undefined) {
            raw = document.getElementById('raw').value;
        } else {
            raw = editor.getValue();
        }

        beautified = cssbeautify(raw, options);

        if (typeof viewer === undefined) {
            document.getElementById('beautified').value = beautified;
        } else {
            viewer.setValue(beautified);
        }

        formatId = undefined;
    }, 42);
}

window.onload = function () {
    'use strict';

    editor = CodeMirror.fromTextArea(document.getElementById("raw"), {
        lineNumbers: true,
        matchBrackets: false,
        lineWrapping: true,
        tabSize: 8,
        onChange: format
    });

    viewer = CodeMirror.fromTextArea(document.getElementById("beautified"), {
        lineNumbers: true,
        matchBrackets: false,
        lineWrapping: true,
        readOnly: true,
        tabSize: 8
    });

    format();
};

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