Adding upstream version 110.0.1.upstream/110.0.1 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:22:09 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:22:09 +0000
commit: 43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree: 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/editing/include
parent: Initial commit. (diff)
download: firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
6 files changed, 15005 insertions, 0 deletions
diff --git a/testing/web-platform/tests/editing/include/editor-test-utils.js b/testing/web-platform/tests/editing/include/editor-test-utils.js
new file mode 100644
index 0000000000..8d8e778836
--- /dev/null
+++ b/testing/web-platform/tests/editing/include/editor-test-utils.js
@@ -0,0 +1,387 @@
+/**
+ * EditorTestUtils is a helper utilities to test HTML editor.  This can be
+ * instantiated per an editing host.  If you test `designMode`, the editing
+ * host should be the <body> element.
+ * Note that if you want to use sendKey in a sub-document, you need to include
+ * testdriver.js (and related files) from the sub-document before creating this.
+ */
+class EditorTestUtils {
+  kShift = "\uE008";
+  kMeta = "\uE03d";
+  kControl = "\uE009";
+  kAlt = "\uE00A";
+
+  editingHost;
+
+  constructor(aEditingHost, aHarnessWindow = window) {
+    this.editingHost = aEditingHost;
+    if (aHarnessWindow != this.window && this.window.test_driver) {
+      this.window.test_driver.set_test_context(aHarnessWindow);
+    }
+  }
+
+  get document() {
+    return this.editingHost.ownerDocument;
+  }
+  get window() {
+    return this.document.defaultView;
+  }
+  get selection() {
+    return this.window.getSelection();
+  }
+
+  sendKey(key, modifier) {
+    if (!modifier) {
+      return new this.window.test_driver.Actions()
+        .keyDown(key)
+        .keyUp(key)
+        .send();
+    }
+    return new this.window.test_driver.Actions()
+      .keyDown(modifier)
+      .keyDown(key)
+      .keyUp(key)
+      .keyUp(modifier)
+      .send();
+  }
+
+  sendDeleteKey(modifier) {
+    const kDeleteKey = "\uE017";
+    return this.sendKey(kDeleteKey, modifier);
+  }
+
+  sendBackspaceKey(modifier) {
+    const kBackspaceKey = "\uE003";
+    return this.sendKey(kBackspaceKey, modifier);
+  }
+
+  sendArrowLeftKey(modifier) {
+    const kArrowLeft = "\uE012";
+    return this.sendKey(kArrowLeft, modifier);
+  }
+
+  sendArrowRightKey(modifier) {
+    const kArrowRight = "\uE014";
+    return this.sendKey(kArrowRight, modifier);
+  }
+
+  sendHomeKey(modifier) {
+    const kHome = "\uE011";
+    return this.sendKey(kHome, modifier);
+  }
+
+  sendEndKey(modifier) {
+    const kEnd = "\uE010";
+    return this.sendKey(kEnd, modifier);
+  }
+
+  sendEnterKey(modifier) {
+    const kEnter = "\uE007";
+    return this.sendKey(kEnter, modifier);
+  }
+
+  sendSelectAllShortcutKey() {
+    return this.sendKey(
+      "a",
+      this.window.navigator.platform.includes("Mac")
+        ? this.kMeta
+        : this.kControl
+    );
+  }
+
+  // Similar to `setupDiv` in editing/include/tests.js, this method sets
+  // innerHTML value of this.editingHost, and sets multiple selection ranges
+  // specified with the markers.
+  // - `[` specifies start boundary in a text node
+  // - `{` specifies start boundary before a node
+  // - `]` specifies end boundary in a text node
+  // - `}` specifies end boundary after a node
+  setupEditingHost(innerHTMLWithRangeMarkers) {
+    const startBoundaries = innerHTMLWithRangeMarkers.match(/\{|\[/g) || [];
+    const endBoundaries = innerHTMLWithRangeMarkers.match(/\}|\]/g) || [];
+    if (startBoundaries.length !== endBoundaries.length) {
+      throw "Should match number of open/close markers";
+    }
+
+    this.editingHost.innerHTML = innerHTMLWithRangeMarkers;
+    this.editingHost.focus();
+
+    if (startBoundaries.length === 0) {
+      // Don't remove the range for now since some tests may assume that
+      // setting innerHTML does not remove all selection ranges.
+      return;
+    }
+
+    let getNextRangeAndDeleteMarker = startNode => {
+      let getNextLeafNode = node => {
+        let inclusiveDeepestFirstChildNode = container => {
+          while (container.firstChild) {
+            container = container.firstChild;
+          }
+          return container;
+        };
+        if (node.hasChildNodes()) {
+          return inclusiveDeepestFirstChildNode(node);
+        }
+        if (node === this.editingHost) {
+          return null;
+        }
+        if (node.nextSibling) {
+          return inclusiveDeepestFirstChildNode(node.nextSibling);
+        }
+        let nextSibling = (child => {
+          for (
+            let parent = child.parentElement;
+            parent && parent != this.editingHost;
+            parent = parent.parentElement
+          ) {
+            if (parent.nextSibling) {
+              return parent.nextSibling;
+            }
+          }
+          return null;
+        })(node);
+        if (!nextSibling) {
+          return null;
+        }
+        return inclusiveDeepestFirstChildNode(nextSibling);
+      };
+      let scanMarkerInTextNode = (textNode, offset) => {
+        return /[\{\[\]\}]/.exec(textNode.data.substr(offset));
+      };
+      let startMarker = ((startContainer, startOffset) => {
+        let scanStartMakerInTextNode = (textNode, offset) => {
+          let scanResult = scanMarkerInTextNode(textNode, offset);
+          if (scanResult === null) {
+            return null;
+          }
+          if (scanResult[0] === "}" || scanResult[0] === "]") {
+            throw "An end marker is found before a start marker";
+          }
+          return {
+            marker: scanResult[0],
+            container: textNode,
+            offset: scanResult.index + offset,
+          };
+        };
+        if (startContainer.nodeType === Node.TEXT_NODE) {
+          let scanResult = scanStartMakerInTextNode(
+            startContainer,
+            startOffset
+          );
+          if (scanResult !== null) {
+            return scanResult;
+          }
+        }
+        let nextNode = startContainer;
+        while ((nextNode = getNextLeafNode(nextNode))) {
+          if (nextNode.nodeType === Node.TEXT_NODE) {
+            let scanResult = scanStartMakerInTextNode(nextNode, 0);
+            if (scanResult !== null) {
+              return scanResult;
+            }
+            continue;
+          }
+        }
+        return null;
+      })(startNode, 0);
+      if (startMarker === null) {
+        return null;
+      }
+      let endMarker = ((startContainer, startOffset) => {
+        let scanEndMarkerInTextNode = (textNode, offset) => {
+          let scanResult = scanMarkerInTextNode(textNode, offset);
+          if (scanResult === null) {
+            return null;
+          }
+          if (scanResult[0] === "{" || scanResult[0] === "[") {
+            throw "A start marker is found before an end marker";
+          }
+          return {
+            marker: scanResult[0],
+            container: textNode,
+            offset: scanResult.index + offset,
+          };
+        };
+        if (startContainer.nodeType === Node.TEXT_NODE) {
+          let scanResult = scanEndMarkerInTextNode(startContainer, startOffset);
+          if (scanResult !== null) {
+            return scanResult;
+          }
+        }
+        let nextNode = startContainer;
+        while ((nextNode = getNextLeafNode(nextNode))) {
+          if (nextNode.nodeType === Node.TEXT_NODE) {
+            let scanResult = scanEndMarkerInTextNode(nextNode, 0);
+            if (scanResult !== null) {
+              return scanResult;
+            }
+            continue;
+          }
+        }
+        return null;
+      })(startMarker.container, startMarker.offset + 1);
+      if (endMarker === null) {
+        throw "Found an open marker, but not found corresponding close marker";
+      }
+      let indexOfContainer = (container, child) => {
+        let offset = 0;
+        for (let node = container.firstChild; node; node = node.nextSibling) {
+          if (node == child) {
+            return offset;
+          }
+          offset++;
+        }
+        throw "child must be a child node of container";
+      };
+      let deleteFoundMarkers = () => {
+        let removeNode = node => {
+          let container = node.parentElement;
+          let offset = indexOfContainer(container, node);
+          node.remove();
+          return { container, offset };
+        };
+        if (startMarker.container == endMarker.container) {
+          // If the text node becomes empty, remove it and set collapsed range
+          // to the position where there is the text node.
+          if (startMarker.container.length === 2) {
+            if (!/[\[\{][\]\}]/.test(startMarker.container.data)) {
+              throw `Unexpected text node (data: "${startMarker.container.data}")`;
+            }
+            let { container, offset } = removeNode(startMarker.container);
+            startMarker.container = endMarker.container = container;
+            startMarker.offset = endMarker.offset = offset;
+            startMarker.marker = endMarker.marker = "";
+            return;
+          }
+          startMarker.container.data = `${startMarker.container.data.substring(
+            0,
+            startMarker.offset
+          )}${startMarker.container.data.substring(
+            startMarker.offset + 1,
+            endMarker.offset
+          )}${startMarker.container.data.substring(endMarker.offset + 1)}`;
+          if (startMarker.offset >= startMarker.container.length) {
+            startMarker.offset = endMarker.offset =
+              startMarker.container.length;
+            return;
+          }
+          endMarker.offset--; // remove the start marker's length
+          if (endMarker.offset > endMarker.container.length) {
+            endMarker.offset = endMarker.container.length;
+          }
+          return;
+        }
+        if (startMarker.container.length === 1) {
+          let { container, offset } = removeNode(startMarker.container);
+          startMarker.container = container;
+          startMarker.offset = offset;
+          startMarker.marker = "";
+        } else {
+          startMarker.container.data = `${startMarker.container.data.substring(
+            0,
+            startMarker.offset
+          )}${startMarker.container.data.substring(startMarker.offset + 1)}`;
+        }
+        if (endMarker.container.length === 1) {
+          let { container, offset } = removeNode(endMarker.container);
+          endMarker.container = container;
+          endMarker.offset = offset;
+          endMarker.marker = "";
+        } else {
+          endMarker.container.data = `${endMarker.container.data.substring(
+            0,
+            endMarker.offset
+          )}${endMarker.container.data.substring(endMarker.offset + 1)}`;
+        }
+      };
+      deleteFoundMarkers();
+
+      let handleNodeSelectMarker = () => {
+        if (startMarker.marker === "{") {
+          if (startMarker.offset === 0) {
+            // The range start with the text node.
+            let container = startMarker.container.parentElement;
+            startMarker.offset = indexOfContainer(
+              container,
+              startMarker.container
+            );
+            startMarker.container = container;
+          } else if (startMarker.offset === startMarker.container.data.length) {
+            // The range start after the text node.
+            let container = startMarker.container.parentElement;
+            startMarker.offset =
+              indexOfContainer(container, startMarker.container) + 1;
+            startMarker.container = container;
+          } else {
+            throw 'Start marker "{" is allowed start or end of a text node';
+          }
+        }
+        if (endMarker.marker === "}") {
+          if (endMarker.offset === 0) {
+            // The range ends before the text node.
+            let container = endMarker.container.parentElement;
+            endMarker.offset = indexOfContainer(container, endMarker.container);
+            endMarker.container = container;
+          } else if (endMarker.offset === endMarker.container.data.length) {
+            // The range ends with the text node.
+            let container = endMarker.container.parentElement;
+            endMarker.offset =
+              indexOfContainer(container, endMarker.container) + 1;
+            endMarker.container = container;
+          } else {
+            throw 'End marker "}" is allowed start or end of a text node';
+          }
+        }
+      };
+      handleNodeSelectMarker();
+
+      let range = document.createRange();
+      range.setStart(startMarker.container, startMarker.offset);
+      range.setEnd(endMarker.container, endMarker.offset);
+      return range;
+    };
+
+    let ranges = [];
+    for (
+      let range = getNextRangeAndDeleteMarker(this.editingHost.firstChild);
+      range;
+      range = getNextRangeAndDeleteMarker(range.endContainer)
+    ) {
+      ranges.push(range);
+    }
+
+    this.selection.removeAllRanges();
+    for (let range of ranges) {
+      this.selection.addRange(range);
+    }
+
+    if (this.selection.rangeCount != ranges.length) {
+      throw `Failed to set selection to the given ranges whose length is ${ranges.length}, but only ${this.selection.rangeCount} ranges are added`;
+    }
+  }
+
+  // Originated from normalizeSerializedStyle in include/tests.js
+  normalizeStyleAttributeValues() {
+    for (const element of Array.from(
+      this.editingHost.querySelectorAll("[style]")
+    )) {
+      element.setAttribute(
+        "style",
+        element
+          .getAttribute("style")
+          // Random spacing differences
+          .replace(/; ?$/, "")
+          .replace(/: /g, ":")
+          // Gecko likes "transparent"
+          .replace(/transparent/g, "rgba(0, 0, 0, 0)")
+          // WebKit likes to look overly precise
+          .replace(/, 0.496094\)/g, ", 0.5)")
+          // Gecko converts anything with full alpha to "transparent" which
+          // then becomes "rgba(0, 0, 0, 0)", so we have to make other
+          // browsers match
+          .replace(/rgba\([0-9]+, [0-9]+, [0-9]+, 0\)/g, "rgba(0, 0, 0, 0)")
+      );
+    }
+  }
+}
diff --git a/testing/web-platform/tests/editing/include/implementation.js b/testing/web-platform/tests/editing/include/implementation.js
new file mode 100644
index 0000000000..44a7afd82d
--- /dev/null
+++ b/testing/web-platform/tests/editing/include/implementation.js
@@ -0,0 +1,8526 @@
+"use strict";
+
+var htmlNamespace = "http://www.w3.org/1999/xhtml";
+
+var cssStylingFlag = false;
+
+var defaultSingleLineContainerName = "div";
+
+// This is bad :(
+var globalRange = null;
+
+// Commands are stored in a dictionary where we call their actions and such
+var commands = {};
+
+///////////////////////////////////////////////////////////////////////////////
+////////////////////////////// Utility functions //////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+//@{
+
+function nextNode(node) {
+    if (node.hasChildNodes()) {
+        return node.firstChild;
+    }
+    return nextNodeDescendants(node);
+}
+
+function previousNode(node) {
+    if (node.previousSibling) {
+        node = node.previousSibling;
+        while (node.hasChildNodes()) {
+            node = node.lastChild;
+        }
+        return node;
+    }
+    if (node.parentNode
+    && node.parentNode.nodeType == Node.ELEMENT_NODE) {
+        return node.parentNode;
+    }
+    return null;
+}
+
+function nextNodeDescendants(node) {
+    while (node && !node.nextSibling) {
+        node = node.parentNode;
+    }
+    if (!node) {
+        return null;
+    }
+    return node.nextSibling;
+}
+
+/**
+ * Returns true if ancestor is an ancestor of descendant, false otherwise.
+ */
+function isAncestor(ancestor, descendant) {
+    return ancestor
+        && descendant
+        && Boolean(ancestor.compareDocumentPosition(descendant) & Node.DOCUMENT_POSITION_CONTAINED_BY);
+}
+
+/**
+ * Returns true if ancestor is an ancestor of or equal to descendant, false
+ * otherwise.
+ */
+function isAncestorContainer(ancestor, descendant) {
+    return (ancestor || descendant)
+        && (ancestor == descendant || isAncestor(ancestor, descendant));
+}
+
+/**
+ * Returns true if descendant is a descendant of ancestor, false otherwise.
+ */
+function isDescendant(descendant, ancestor) {
+    return ancestor
+        && descendant
+        && Boolean(ancestor.compareDocumentPosition(descendant) & Node.DOCUMENT_POSITION_CONTAINED_BY);
+}
+
+/**
+ * Returns true if node1 is before node2 in tree order, false otherwise.
+ */
+function isBefore(node1, node2) {
+    return Boolean(node1.compareDocumentPosition(node2) & Node.DOCUMENT_POSITION_FOLLOWING);
+}
+
+/**
+ * Returns true if node1 is after node2 in tree order, false otherwise.
+ */
+function isAfter(node1, node2) {
+    return Boolean(node1.compareDocumentPosition(node2) & Node.DOCUMENT_POSITION_PRECEDING);
+}
+
+function getAncestors(node) {
+    var ancestors = [];
+    while (node.parentNode) {
+        ancestors.unshift(node.parentNode);
+        node = node.parentNode;
+    }
+    return ancestors;
+}
+
+function getInclusiveAncestors(node) {
+    return getAncestors(node).concat(node);
+}
+
+function getDescendants(node) {
+    var descendants = [];
+    var stop = nextNodeDescendants(node);
+    while ((node = nextNode(node))
+    && node != stop) {
+        descendants.push(node);
+    }
+    return descendants;
+}
+
+function getInclusiveDescendants(node) {
+    return [node].concat(getDescendants(node));
+}
+
+function convertProperty(property) {
+    // Special-case for now
+    var map = {
+        "fontFamily": "font-family",
+        "fontSize": "font-size",
+        "fontStyle": "font-style",
+        "fontWeight": "font-weight",
+        "textDecoration": "text-decoration",
+    };
+    if (typeof map[property] != "undefined") {
+        return map[property];
+    }
+
+    return property;
+}
+
+// Return the <font size=X> value for the given CSS size, or undefined if there
+// is none.
+function cssSizeToLegacy(cssVal) {
+    return {
+        "x-small": 1,
+        "small": 2,
+        "medium": 3,
+        "large": 4,
+        "x-large": 5,
+        "xx-large": 6,
+        "xxx-large": 7
+    }[cssVal];
+}
+
+// Return the CSS size given a legacy size.
+function legacySizeToCss(legacyVal) {
+    return {
+        1: "x-small",
+        2: "small",
+        3: "medium",
+        4: "large",
+        5: "x-large",
+        6: "xx-large",
+        7: "xxx-large",
+    }[legacyVal];
+}
+
+// Opera 11 puts HTML elements in the null namespace, it seems.
+function isHtmlNamespace(ns) {
+    return ns === null
+        || ns === htmlNamespace;
+}
+
+// "the directionality" from HTML.  I don't bother caring about non-HTML
+// elements.
+//
+// "The directionality of an element is either 'ltr' or 'rtl', and is
+// determined as per the first appropriate set of steps from the following
+// list:"
+function getDirectionality(element) {
+    // "If the element's dir attribute is in the ltr state
+    //     The directionality of the element is 'ltr'."
+    if (element.dir == "ltr") {
+        return "ltr";
+    }
+
+    // "If the element's dir attribute is in the rtl state
+    //     The directionality of the element is 'rtl'."
+    if (element.dir == "rtl") {
+        return "rtl";
+    }
+
+    // "If the element's dir attribute is in the auto state
+    // "If the element is a bdi element and the dir attribute is not in a
+    // defined state (i.e. it is not present or has an invalid value)
+    //     [lots of complicated stuff]
+    //
+    // Skip this, since no browser implements it anyway.
+
+    // "If the element is a root element and the dir attribute is not in a
+    // defined state (i.e. it is not present or has an invalid value)
+    //     The directionality of the element is 'ltr'."
+    if (!isHtmlElement(element.parentNode)) {
+        return "ltr";
+    }
+
+    // "If the element has a parent element and the dir attribute is not in a
+    // defined state (i.e. it is not present or has an invalid value)
+    //     The directionality of the element is the same as the element's
+    //     parent element's directionality."
+    return getDirectionality(element.parentNode);
+}
+
+//@}
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////// DOM Range functions /////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+//@{
+
+function getNodeIndex(node) {
+    var ret = 0;
+    while (node.previousSibling) {
+        ret++;
+        node = node.previousSibling;
+    }
+    return ret;
+}
+
+// "The length of a Node node is the following, depending on node:
+//
+// ProcessingInstruction
+// DocumentType
+//   Always 0.
+// Text
+// Comment
+//   node's length.
+// Any other node
+//   node's childNodes's length."
+function getNodeLength(node) {
+    switch (node.nodeType) {
+        case Node.PROCESSING_INSTRUCTION_NODE:
+        case Node.DOCUMENT_TYPE_NODE:
+            return 0;
+
+        case Node.TEXT_NODE:
+        case Node.COMMENT_NODE:
+            return node.length;
+
+        default:
+            return node.childNodes.length;
+    }
+}
+
+/**
+ * The position of two boundary points relative to one another, as defined by
+ * DOM Range.
+ */
+function getPosition(nodeA, offsetA, nodeB, offsetB) {
+    // "If node A is the same as node B, return equal if offset A equals offset
+    // B, before if offset A is less than offset B, and after if offset A is
+    // greater than offset B."
+    if (nodeA == nodeB) {
+        if (offsetA == offsetB) {
+            return "equal";
+        }
+        if (offsetA < offsetB) {
+            return "before";
+        }
+        if (offsetA > offsetB) {
+            return "after";
+        }
+    }
+
+    // "If node A is after node B in tree order, compute the position of (node
+    // B, offset B) relative to (node A, offset A). If it is before, return
+    // after. If it is after, return before."
+    if (nodeB.compareDocumentPosition(nodeA) & Node.DOCUMENT_POSITION_FOLLOWING) {
+        var pos = getPosition(nodeB, offsetB, nodeA, offsetA);
+        if (pos == "before") {
+            return "after";
+        }
+        if (pos == "after") {
+            return "before";
+        }
+    }
+
+    // "If node A is an ancestor of node B:"
+    if (nodeB.compareDocumentPosition(nodeA) & Node.DOCUMENT_POSITION_CONTAINS) {
+        // "Let child equal node B."
+        var child = nodeB;
+
+        // "While child is not a child of node A, set child to its parent."
+        while (child.parentNode != nodeA) {
+            child = child.parentNode;
+        }
+
+        // "If the index of child is less than offset A, return after."
+        if (getNodeIndex(child) < offsetA) {
+            return "after";
+        }
+    }
+
+    // "Return before."
+    return "before";
+}
+
+/**
+ * Returns the furthest ancestor of a Node as defined by DOM Range.
+ */
+function getFurthestAncestor(node) {
+    var root = node;
+    while (root.parentNode != null) {
+        root = root.parentNode;
+    }
+    return root;
+}
+
+/**
+ * "contained" as defined by DOM Range: "A Node node is contained in a range
+ * range if node's furthest ancestor is the same as range's root, and (node, 0)
+ * is after range's start, and (node, length of node) is before range's end."
+ */
+function isContained(node, range) {
+    var pos1 = getPosition(node, 0, range.startContainer, range.startOffset);
+    var pos2 = getPosition(node, getNodeLength(node), range.endContainer, range.endOffset);
+
+    return getFurthestAncestor(node) == getFurthestAncestor(range.startContainer)
+        && pos1 == "after"
+        && pos2 == "before";
+}
+
+/**
+ * Return all nodes contained in range that the provided function returns true
+ * for, omitting any with an ancestor already being returned.
+ */
+function getContainedNodes(range, condition) {
+    if (typeof condition == "undefined") {
+        condition = function() { return true };
+    }
+    var node = range.startContainer;
+    if (node.hasChildNodes()
+    && range.startOffset < node.childNodes.length) {
+        // A child is contained
+        node = node.childNodes[range.startOffset];
+    } else if (range.startOffset == getNodeLength(node)) {
+        // No descendant can be contained
+        node = nextNodeDescendants(node);
+    } else {
+        // No children; this node at least can't be contained
+        node = nextNode(node);
+    }
+
+    var stop = range.endContainer;
+    if (stop.hasChildNodes()
+    && range.endOffset < stop.childNodes.length) {
+        // The node after the last contained node is a child
+        stop = stop.childNodes[range.endOffset];
+    } else {
+        // This node and/or some of its children might be contained
+        stop = nextNodeDescendants(stop);
+    }
+
+    var nodeList = [];
+    while (isBefore(node, stop)) {
+        if (isContained(node, range)
+        && condition(node)) {
+            nodeList.push(node);
+            node = nextNodeDescendants(node);
+            continue;
+        }
+        node = nextNode(node);
+    }
+    return nodeList;
+}
+
+/**
+ * As above, but includes nodes with an ancestor that's already been returned.
+ */
+function getAllContainedNodes(range, condition) {
+    if (typeof condition == "undefined") {
+        condition = function() { return true };
+    }
+    var node = range.startContainer;
+    if (node.hasChildNodes()
+    && range.startOffset < node.childNodes.length) {
+        // A child is contained
+        node = node.childNodes[range.startOffset];
+    } else if (range.startOffset == getNodeLength(node)) {
+        // No descendant can be contained
+        node = nextNodeDescendants(node);
+    } else {
+        // No children; this node at least can't be contained
+        node = nextNode(node);
+    }
+
+    var stop = range.endContainer;
+    if (stop.hasChildNodes()
+    && range.endOffset < stop.childNodes.length) {
+        // The node after the last contained node is a child
+        stop = stop.childNodes[range.endOffset];
+    } else {
+        // This node and/or some of its children might be contained
+        stop = nextNodeDescendants(stop);
+    }
+
+    var nodeList = [];
+    while (isBefore(node, stop)) {
+        if (isContained(node, range)
+        && condition(node)) {
+            nodeList.push(node);
+        }
+        node = nextNode(node);
+    }
+    return nodeList;
+}
+
+// Returns either null, or something of the form rgb(x, y, z), or something of
+// the form rgb(x, y, z, w) with w != 0.
+function normalizeColor(color) {
+    if (color.toLowerCase() == "currentcolor") {
+        return null;
+    }
+
+    if (normalizeColor.resultCache === undefined) {
+        normalizeColor.resultCache = {};
+    }
+
+    if (normalizeColor.resultCache[color] !== undefined) {
+        return normalizeColor.resultCache[color];
+    }
+
+    var originalColor = color;
+
+    var outerSpan = document.createElement("span");
+    document.body.appendChild(outerSpan);
+    outerSpan.style.color = "black";
+
+    var innerSpan = document.createElement("span");
+    outerSpan.appendChild(innerSpan);
+    innerSpan.style.color = color;
+    color = getComputedStyle(innerSpan).color;
+
+    if (color == "rgb(0, 0, 0)") {
+        // Maybe it's really black, maybe it's invalid.
+        outerSpan.color = "white";
+        color = getComputedStyle(innerSpan).color;
+        if (color != "rgb(0, 0, 0)") {
+            return normalizeColor.resultCache[originalColor] = null;
+        }
+    }
+
+    document.body.removeChild(outerSpan);
+
+    // I rely on the fact that browsers generally provide consistent syntax for
+    // getComputedStyle(), although it's not standardized.  There are only
+    // three exceptions I found:
+    if (/^rgba\([0-9]+, [0-9]+, [0-9]+, 1\)$/.test(color)) {
+        // IE10PP2 seems to do this sometimes.
+        return normalizeColor.resultCache[originalColor] =
+            color.replace("rgba", "rgb").replace(", 1)", ")");
+    }
+    if (color == "transparent") {
+        // IE10PP2, Firefox 7.0a2, and Opera 11.50 all return "transparent" if
+        // the specified value is "transparent".
+        return normalizeColor.resultCache[originalColor] =
+            "rgba(0, 0, 0, 0)";
+    }
+    // Chrome 15 dev adds way too many significant figures.  This isn't a full
+    // fix, it just fixes one case that comes up in tests.
+    color = color.replace(/, 0.496094\)$/, ", 0.5)");
+    return normalizeColor.resultCache[originalColor] = color;
+}
+
+// Returns either null, or something of the form #xxxxxx.
+function parseSimpleColor(color) {
+    color = normalizeColor(color);
+    var matches = /^rgb\(([0-9]+), ([0-9]+), ([0-9]+)\)$/.exec(color);
+    if (matches) {
+        return "#"
+            + parseInt(matches[1]).toString(16).replace(/^.$/, "0$&")
+            + parseInt(matches[2]).toString(16).replace(/^.$/, "0$&")
+            + parseInt(matches[3]).toString(16).replace(/^.$/, "0$&");
+    }
+    return null;
+}
+
+//@}
+
+//////////////////////////////////////////////////////////////////////////////
+/////////////////////////// Edit command functions ///////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////
+///// Methods of the HTMLDocument interface /////
+/////////////////////////////////////////////////
+//@{
+
+var executionStackDepth = 0;
+
+// Helper function for common behavior.
+function editCommandMethod(command, range, callback) {
+    // Set up our global range magic, but only if we're the outermost function
+    if (executionStackDepth == 0 && typeof range != "undefined") {
+        globalRange = range;
+    } else if (executionStackDepth == 0) {
+        globalRange = null;
+        globalRange = getActiveRange();
+    }
+
+    executionStackDepth++;
+    try {
+        var ret = callback();
+    } catch(e) {
+        executionStackDepth--;
+        throw e;
+    }
+    executionStackDepth--;
+    return ret;
+}
+
+function myExecCommand(command, showUi, value, range) {
+    // "All of these methods must treat their command argument ASCII
+    // case-insensitively."
+    command = command.toLowerCase();
+
+    // "If only one argument was provided, let show UI be false."
+    //
+    // If range was passed, I can't actually detect how many args were passed
+    // . . .
+    if (arguments.length == 1
+    || (arguments.length >=4 && typeof showUi == "undefined")) {
+        showUi = false;
+    }
+
+    // "If only one or two arguments were provided, let value be the empty
+    // string."
+    if (arguments.length <= 2
+    || (arguments.length >=4 && typeof value == "undefined")) {
+        value = "";
+    }
+
+    return editCommandMethod(command, range, (function(command, showUi, value) { return function() {
+        // "If command is not supported or not enabled, return false."
+        if (!(command in commands) || !myQueryCommandEnabled(command)) {
+            return false;
+        }
+
+        // "Take the action for command, passing value to the instructions as an
+        // argument."
+        var ret = commands[command].action(value);
+
+        // Check for bugs
+        if (ret !== true && ret !== false) {
+            throw "execCommand() didn't return true or false: " + ret;
+        }
+
+        // "If the previous step returned false, return false."
+        if (ret === false) {
+            return false;
+        }
+
+        // "Return true."
+        return true;
+    }})(command, showUi, value));
+}
+
+function myQueryCommandEnabled(command, range) {
+    // "All of these methods must treat their command argument ASCII
+    // case-insensitively."
+    command = command.toLowerCase();
+
+    return editCommandMethod(command, range, (function(command) { return function() {
+        // "Return true if command is both supported and enabled, false
+        // otherwise."
+        if (!(command in commands)) {
+            return false;
+        }
+
+        // "Among commands defined in this specification, those listed in
+        // Miscellaneous commands are always enabled, except for the cut
+        // command and the paste command. The other commands defined here are
+        // enabled if the active range is not null, its start node is either
+        // editable or an editing host, its end node is either editable or an
+        // editing host, and there is some editing host that is an inclusive
+        // ancestor of both its start node and its end node."
+        return ["copy", "defaultparagraphseparator", "selectall", "stylewithcss",
+        "usecss"].indexOf(command) != -1
+            || (
+                getActiveRange() !== null
+                && (isEditable(getActiveRange().startContainer) || isEditingHost(getActiveRange().startContainer))
+                && (isEditable(getActiveRange().endContainer) || isEditingHost(getActiveRange().endContainer))
+                && (getInclusiveAncestors(getActiveRange().commonAncestorContainer).some(isEditingHost))
+            );
+    }})(command));
+}
+
+function myQueryCommandIndeterm(command, range) {
+    // "All of these methods must treat their command argument ASCII
+    // case-insensitively."
+    command = command.toLowerCase();
+
+    return editCommandMethod(command, range, (function(command) { return function() {
+        // "If command is not supported or has no indeterminacy, return false."
+        if (!(command in commands) || !("indeterm" in commands[command])) {
+            return false;
+        }
+
+        // "Return true if command is indeterminate, otherwise false."
+        return commands[command].indeterm();
+    }})(command));
+}
+
+function myQueryCommandState(command, range) {
+    // "All of these methods must treat their command argument ASCII
+    // case-insensitively."
+    command = command.toLowerCase();
+
+    return editCommandMethod(command, range, (function(command) { return function() {
+        // "If command is not supported or has no state, return false."
+        if (!(command in commands) || !("state" in commands[command])) {
+            return false;
+        }
+
+        // "If the state override for command is set, return it."
+        if (typeof getStateOverride(command) != "undefined") {
+            return getStateOverride(command);
+        }
+
+        // "Return true if command's state is true, otherwise false."
+        return commands[command].state();
+    }})(command));
+}
+
+// "When the queryCommandSupported(command) method on the HTMLDocument
+// interface is invoked, the user agent must return true if command is
+// supported, and false otherwise."
+function myQueryCommandSupported(command) {
+    // "All of these methods must treat their command argument ASCII
+    // case-insensitively."
+    command = command.toLowerCase();
+
+    return command in commands;
+}
+
+function myQueryCommandValue(command, range) {
+    // "All of these methods must treat their command argument ASCII
+    // case-insensitively."
+    command = command.toLowerCase();
+
+    return editCommandMethod(command, range, function() {
+        // "If command is not supported or has no value, return the empty string."
+        if (!(command in commands) || !("value" in commands[command])) {
+            return "";
+        }
+
+        // "If command is "fontSize" and its value override is set, convert the
+        // value override to an integer number of pixels and return the legacy
+        // font size for the result."
+        if (command == "fontsize"
+        && getValueOverride("fontsize") !== undefined) {
+            return getLegacyFontSize(getValueOverride("fontsize"));
+        }
+
+        // "If the value override for command is set, return it."
+        if (typeof getValueOverride(command) != "undefined") {
+            return getValueOverride(command);
+        }
+
+        // "Return command's value."
+        return commands[command].value();
+    });
+}
+//@}
+
+//////////////////////////////
+///// Common definitions /////
+//////////////////////////////
+//@{
+
+// "An HTML element is an Element whose namespace is the HTML namespace."
+//
+// I allow an extra argument to more easily check whether something is a
+// particular HTML element, like isHtmlElement(node, "OL").  It accepts arrays
+// too, like isHtmlElement(node, ["OL", "UL"]) to check if it's an ol or ul.
+function isHtmlElement(node, tags) {
+    if (typeof tags == "string") {
+        tags = [tags];
+    }
+    if (typeof tags == "object") {
+        tags = tags.map(function(tag) { return tag.toUpperCase() });
+    }
+    return node
+        && node.nodeType == Node.ELEMENT_NODE
+        && isHtmlNamespace(node.namespaceURI)
+        && (typeof tags == "undefined" || tags.indexOf(node.tagName) != -1);
+}
+
+// "A prohibited paragraph child name is "address", "article", "aside",
+// "blockquote", "caption", "center", "col", "colgroup", "dd", "details",
+// "dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer",
+// "form", "h1", "h2", "h3", "h4", "h5", "h6", "header", "hgroup", "hr", "li",
+// "listing", "menu", "nav", "ol", "p", "plaintext", "pre", "section",
+// "summary", "table", "tbody", "td", "tfoot", "th", "thead", "tr", "ul", or
+// "xmp"."
+var prohibitedParagraphChildNames = ["address", "article", "aside",
+    "blockquote", "caption", "center", "col", "colgroup", "dd", "details",
+    "dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer",
+    "form", "h1", "h2", "h3", "h4", "h5", "h6", "header", "hgroup", "hr", "li",
+    "listing", "menu", "nav", "ol", "p", "plaintext", "pre", "section",
+    "summary", "table", "tbody", "td", "tfoot", "th", "thead", "tr", "ul",
+    "xmp"];
+
+// "A prohibited paragraph child is an HTML element whose local name is a
+// prohibited paragraph child name."
+function isProhibitedParagraphChild(node) {
+    return isHtmlElement(node, prohibitedParagraphChildNames);
+}
+
+// "A block node is either an Element whose "display" property does not have
+// resolved value "inline" or "inline-block" or "inline-table" or "none", or a
+// Document, or a DocumentFragment."
+function isBlockNode(node) {
+    return node
+        && ((node.nodeType == Node.ELEMENT_NODE && ["inline", "inline-block", "inline-table", "none"].indexOf(getComputedStyle(node).display) == -1)
+        || node.nodeType == Node.DOCUMENT_NODE
+        || node.nodeType == Node.DOCUMENT_FRAGMENT_NODE);
+}
+
+// "An inline node is a node that is not a block node."
+function isInlineNode(node) {
+    return node && !isBlockNode(node);
+}
+
+// "An editing host is a node that is either an HTML element with a
+// contenteditable attribute set to the true state, or the HTML element child
+// of a Document whose designMode is enabled."
+function isEditingHost(node) {
+    return node
+        && isHtmlElement(node)
+        && (node.contentEditable == "true"
+        || (node.parentNode
+        && node.parentNode.nodeType == Node.DOCUMENT_NODE
+        && node.parentNode.designMode == "on"));
+}
+
+// "Something is editable if it is a node; it is not an editing host; it does
+// not have a contenteditable attribute set to the false state; its parent is
+// an editing host or editable; and either it is an HTML element, or it is an
+// svg or math element, or it is not an Element and its parent is an HTML
+// element."
+function isEditable(node) {
+    return node
+        && !isEditingHost(node)
+        && (node.nodeType != Node.ELEMENT_NODE || node.contentEditable != "false")
+        && (isEditingHost(node.parentNode) || isEditable(node.parentNode))
+        && (isHtmlElement(node)
+        || (node.nodeType == Node.ELEMENT_NODE && node.namespaceURI == "http://www.w3.org/2000/svg" && node.localName == "svg")
+        || (node.nodeType == Node.ELEMENT_NODE && node.namespaceURI == "http://www.w3.org/1998/Math/MathML" && node.localName == "math")
+        || (node.nodeType != Node.ELEMENT_NODE && isHtmlElement(node.parentNode)));
+}
+
+// Helper function, not defined in the spec
+function hasEditableDescendants(node) {
+    for (var i = 0; i < node.childNodes.length; i++) {
+        if (isEditable(node.childNodes[i])
+        || hasEditableDescendants(node.childNodes[i])) {
+            return true;
+        }
+    }
+    return false;
+}
+
+// "The editing host of node is null if node is neither editable nor an editing
+// host; node itself, if node is an editing host; or the nearest ancestor of
+// node that is an editing host, if node is editable."
+function getEditingHostOf(node) {
+    if (isEditingHost(node)) {
+        return node;
+    } else if (isEditable(node)) {
+        var ancestor = node.parentNode;
+        while (!isEditingHost(ancestor)) {
+            ancestor = ancestor.parentNode;
+        }
+        return ancestor;
+    } else {
+        return null;
+    }
+}
+
+// "Two nodes are in the same editing host if the editing host of the first is
+// non-null and the same as the editing host of the second."
+function inSameEditingHost(node1, node2) {
+    return getEditingHostOf(node1)
+        && getEditingHostOf(node1) == getEditingHostOf(node2);
+}
+
+// "A collapsed line break is a br that begins a line box which has nothing
+// else in it, and therefore has zero height."
+function isCollapsedLineBreak(br) {
+    if (!isHtmlElement(br, "br")) {
+        return false;
+    }
+
+    // Add a zwsp after it and see if that changes the height of the nearest
+    // non-inline parent.  Note: this is not actually reliable, because the
+    // parent might have a fixed height or something.
+    var ref = br.parentNode;
+    while (getComputedStyle(ref).display == "inline") {
+        ref = ref.parentNode;
+    }
+    var refStyle = ref.hasAttribute("style") ? ref.getAttribute("style") : null;
+    ref.style.height = "auto";
+    ref.style.maxHeight = "none";
+    ref.style.minHeight = "0";
+    var space = document.createTextNode("\u200b");
+    var origHeight = ref.offsetHeight;
+    if (origHeight == 0) {
+        throw "isCollapsedLineBreak: original height is zero, bug?";
+    }
+    br.parentNode.insertBefore(space, br.nextSibling);
+    var finalHeight = ref.offsetHeight;
+    space.parentNode.removeChild(space);
+    if (refStyle === null) {
+        // Without the setAttribute() line, removeAttribute() doesn't work in
+        // Chrome 14 dev.  I have no idea why.
+        ref.setAttribute("style", "");
+        ref.removeAttribute("style");
+    } else {
+        ref.setAttribute("style", refStyle);
+    }
+
+    // Allow some leeway in case the zwsp didn't create a whole new line, but
+    // only made an existing line slightly higher.  Firefox 6.0a2 shows this
+    // behavior when the first line is bold.
+    return origHeight < finalHeight - 5;
+}
+
+// "An extraneous line break is a br that has no visual effect, in that
+// removing it from the DOM would not change layout, except that a br that is
+// the sole child of an li is not extraneous."
+//
+// FIXME: This doesn't work in IE, since IE ignores display: none in
+// contenteditable.
+function isExtraneousLineBreak(br) {
+    if (!isHtmlElement(br, "br")) {
+        return false;
+    }
+
+    if (isHtmlElement(br.parentNode, "li")
+    && br.parentNode.childNodes.length == 1) {
+        return false;
+    }
+
+    // Make the line break disappear and see if that changes the block's
+    // height.  Yes, this is an absurd hack.  We have to reset height etc. on
+    // the reference node because otherwise its height won't change if it's not
+    // auto.
+    var ref = br.parentNode;
+    while (getComputedStyle(ref).display == "inline") {
+        ref = ref.parentNode;
+    }
+    var refStyle = ref.hasAttribute("style") ? ref.getAttribute("style") : null;
+    ref.style.height = "auto";
+    ref.style.maxHeight = "none";
+    ref.style.minHeight = "0";
+    var brStyle = br.hasAttribute("style") ? br.getAttribute("style") : null;
+    var origHeight = ref.offsetHeight;
+    if (origHeight == 0) {
+        throw "isExtraneousLineBreak: original height is zero, bug?";
+    }
+    br.setAttribute("style", "display:none");
+    var finalHeight = ref.offsetHeight;
+    if (refStyle === null) {
+        // Without the setAttribute() line, removeAttribute() doesn't work in
+        // Chrome 14 dev.  I have no idea why.
+        ref.setAttribute("style", "");
+        ref.removeAttribute("style");
+    } else {
+        ref.setAttribute("style", refStyle);
+    }
+    if (brStyle === null) {
+        br.removeAttribute("style");
+    } else {
+        br.setAttribute("style", brStyle);
+    }
+
+    return origHeight == finalHeight;
+}
+
+// "A whitespace node is either a Text node whose data is the empty string; or
+// a Text node whose data consists only of one or more tabs (0x0009), line
+// feeds (0x000A), carriage returns (0x000D), and/or spaces (0x0020), and whose
+// parent is an Element whose resolved value for "white-space" is "normal" or
+// "nowrap"; or a Text node whose data consists only of one or more tabs
+// (0x0009), carriage returns (0x000D), and/or spaces (0x0020), and whose
+// parent is an Element whose resolved value for "white-space" is "pre-line"."
+function isWhitespaceNode(node) {
+    return node
+        && node.nodeType == Node.TEXT_NODE
+        && (node.data == ""
+        || (
+            /^[\t\n\r ]+$/.test(node.data)
+            && node.parentNode
+            && node.parentNode.nodeType == Node.ELEMENT_NODE
+            && ["normal", "nowrap"].indexOf(getComputedStyle(node.parentNode).whiteSpace) != -1
+        ) || (
+            /^[\t\r ]+$/.test(node.data)
+            && node.parentNode
+            && node.parentNode.nodeType == Node.ELEMENT_NODE
+            && getComputedStyle(node.parentNode).whiteSpace == "pre-line"
+        ));
+}
+
+// "node is a collapsed whitespace node if the following algorithm returns
+// true:"
+function isCollapsedWhitespaceNode(node) {
+    // "If node is not a whitespace node, return false."
+    if (!isWhitespaceNode(node)) {
+        return false;
+    }
+
+    // "If node's data is the empty string, return true."
+    if (node.data == "") {
+        return true;
+    }
+
+    // "Let ancestor be node's parent."
+    var ancestor = node.parentNode;
+
+    // "If ancestor is null, return true."
+    if (!ancestor) {
+        return true;
+    }
+
+    // "If the "display" property of some ancestor of node has resolved value
+    // "none", return true."
+    if (getAncestors(node).some(function(ancestor) {
+        return ancestor.nodeType == Node.ELEMENT_NODE
+            && getComputedStyle(ancestor).display == "none";
+    })) {
+        return true;
+    }
+
+    // "While ancestor is not a block node and its parent is not null, set
+    // ancestor to its parent."
+    while (!isBlockNode(ancestor)
+    && ancestor.parentNode) {
+        ancestor = ancestor.parentNode;
+    }
+
+    // "Let reference be node."
+    var reference = node;
+
+    // "While reference is a descendant of ancestor:"
+    while (reference != ancestor) {
+        // "Let reference be the node before it in tree order."
+        reference = previousNode(reference);
+
+        // "If reference is a block node or a br, return true."
+        if (isBlockNode(reference)
+        || isHtmlElement(reference, "br")) {
+            return true;
+        }
+
+        // "If reference is a Text node that is not a whitespace node, or is an
+        // img, break from this loop."
+        if ((reference.nodeType == Node.TEXT_NODE && !isWhitespaceNode(reference))
+        || isHtmlElement(reference, "img")) {
+            break;
+        }
+    }
+
+    // "Let reference be node."
+    reference = node;
+
+    // "While reference is a descendant of ancestor:"
+    var stop = nextNodeDescendants(ancestor);
+    while (reference != stop) {
+        // "Let reference be the node after it in tree order, or null if there
+        // is no such node."
+        reference = nextNode(reference);
+
+        // "If reference is a block node or a br, return true."
+        if (isBlockNode(reference)
+        || isHtmlElement(reference, "br")) {
+            return true;
+        }
+
+        // "If reference is a Text node that is not a whitespace node, or is an
+        // img, break from this loop."
+        if ((reference && reference.nodeType == Node.TEXT_NODE && !isWhitespaceNode(reference))
+        || isHtmlElement(reference, "img")) {
+            break;
+        }
+    }
+
+    // "Return false."
+    return false;
+}
+
+// "Something is visible if it is a node that either is a block node, or a Text
+// node that is not a collapsed whitespace node, or an img, or a br that is not
+// an extraneous line break, or any node with a visible descendant; excluding
+// any node with an ancestor container Element whose "display" property has
+// resolved value "none"."
+function isVisible(node) {
+    if (!node) {
+        return false;
+    }
+
+    if (getAncestors(node).concat(node)
+    .filter(function(node) { return node.nodeType == Node.ELEMENT_NODE })
+    .some(function(node) { return getComputedStyle(node).display == "none" })) {
+        return false;
+    }
+
+    if (isBlockNode(node)
+    || (node.nodeType == Node.TEXT_NODE && !isCollapsedWhitespaceNode(node))
+    || isHtmlElement(node, "img")
+    || (isHtmlElement(node, "br") && !isExtraneousLineBreak(node))) {
+        return true;
+    }
+
+    for (var i = 0; i < node.childNodes.length; i++) {
+        if (isVisible(node.childNodes[i])) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+// "Something is invisible if it is a node that is not visible."
+function isInvisible(node) {
+    return node && !isVisible(node);
+}
+
+// "A collapsed block prop is either a collapsed line break that is not an
+// extraneous line break, or an Element that is an inline node and whose
+// children are all either invisible or collapsed block props and that has at
+// least one child that is a collapsed block prop."
+function isCollapsedBlockProp(node) {
+    if (isCollapsedLineBreak(node)
+    && !isExtraneousLineBreak(node)) {
+        return true;
+    }
+
+    if (!isInlineNode(node)
+    || node.nodeType != Node.ELEMENT_NODE) {
+        return false;
+    }
+
+    var hasCollapsedBlockPropChild = false;
+    for (var i = 0; i < node.childNodes.length; i++) {
+        if (!isInvisible(node.childNodes[i])
+        && !isCollapsedBlockProp(node.childNodes[i])) {
+            return false;
+        }
+        if (isCollapsedBlockProp(node.childNodes[i])) {
+            hasCollapsedBlockPropChild = true;
+        }
+    }
+
+    return hasCollapsedBlockPropChild;
+}
+
+// "The active range is the range of the selection given by calling
+// getSelection() on the context object. (Thus the active range may be null.)"
+//
+// We cheat and return globalRange if that's defined.  We also ensure that the
+// active range meets the requirements that selection boundary points are
+// supposed to meet, i.e., that the nodes are both Text or Element nodes that
+// descend from a Document.
+function getActiveRange() {
+    var ret;
+    if (globalRange) {
+        ret = globalRange;
+    } else if (getSelection().rangeCount) {
+        ret = getSelection().getRangeAt(0);
+    } else {
+        return null;
+    }
+    if ([Node.TEXT_NODE, Node.ELEMENT_NODE].indexOf(ret.startContainer.nodeType) == -1
+    || [Node.TEXT_NODE, Node.ELEMENT_NODE].indexOf(ret.endContainer.nodeType) == -1
+    || !ret.startContainer.ownerDocument
+    || !ret.endContainer.ownerDocument
+    || !isDescendant(ret.startContainer, ret.startContainer.ownerDocument)
+    || !isDescendant(ret.endContainer, ret.endContainer.ownerDocument)) {
+        throw "Invalid active range; test bug?";
+    }
+    return ret;
+}
+
+// "For some commands, each HTMLDocument must have a boolean state override
+// and/or a string value override. These do not change the command's state or
+// value, but change the way some algorithms behave, as specified in those
+// algorithms' definitions. Initially, both must be unset for every command.
+// Whenever the number of ranges in the Selection changes to something
+// different, and whenever a boundary point of the range at a given index in
+// the Selection changes to something different, the state override and value
+// override must be unset for every command."
+//
+// We implement this crudely by using setters and getters.  To verify that the
+// selection hasn't changed, we copy the active range and just check the
+// endpoints match.  This isn't really correct, but it's good enough for us.
+// Unset state/value overrides are undefined.  We put everything in a function
+// so no one can access anything except via the provided functions, since
+// otherwise callers might mistakenly use outdated overrides (if the selection
+// has changed).
+var getStateOverride, setStateOverride, unsetStateOverride,
+    getValueOverride, setValueOverride, unsetValueOverride;
+(function() {
+    var stateOverrides = {};
+    var valueOverrides = {};
+    var storedRange = null;
+
+    function resetOverrides() {
+        if (!storedRange
+        || storedRange.startContainer != getActiveRange().startContainer
+        || storedRange.endContainer != getActiveRange().endContainer
+        || storedRange.startOffset != getActiveRange().startOffset
+        || storedRange.endOffset != getActiveRange().endOffset) {
+            stateOverrides = {};
+            valueOverrides = {};
+            storedRange = getActiveRange().cloneRange();
+        }
+    }
+
+    getStateOverride = function(command) {
+        resetOverrides();
+        return stateOverrides[command];
+    };
+
+    setStateOverride = function(command, newState) {
+        resetOverrides();
+        stateOverrides[command] = newState;
+    };
+
+    unsetStateOverride = function(command) {
+        resetOverrides();
+        delete stateOverrides[command];
+    }
+
+    getValueOverride = function(command) {
+        resetOverrides();
+        return valueOverrides[command];
+    }
+
+    // "The value override for the backColor command must be the same as the
+    // value override for the hiliteColor command, such that setting one sets
+    // the other to the same thing and unsetting one unsets the other."
+    setValueOverride = function(command, newValue) {
+        resetOverrides();
+        valueOverrides[command] = newValue;
+        if (command == "backcolor") {
+            valueOverrides.hilitecolor = newValue;
+        } else if (command == "hilitecolor") {
+            valueOverrides.backcolor = newValue;
+        }
+    }
+
+    unsetValueOverride = function(command) {
+        resetOverrides();
+        delete valueOverrides[command];
+        if (command == "backcolor") {
+            delete valueOverrides.hilitecolor;
+        } else if (command == "hilitecolor") {
+            delete valueOverrides.backcolor;
+        }
+    }
+})();
+
+//@}
+
+/////////////////////////////
+///// Common algorithms /////
+/////////////////////////////
+
+///// Assorted common algorithms /////
+//@{
+
+// Magic array of extra ranges whose endpoints we want to preserve.
+var extraRanges = [];
+
+function movePreservingRanges(node, newParent, newIndex) {
+    // For convenience, I allow newIndex to be -1 to mean "insert at the end".
+    if (newIndex == -1) {
+        newIndex = newParent.childNodes.length;
+    }
+
+    // "When the user agent is to move a Node to a new location, preserving
+    // ranges, it must remove the Node from its original parent (if any), then
+    // insert it in the new location. In doing so, however, it must ignore the
+    // regular range mutation rules, and instead follow these rules:"
+
+    // "Let node be the moved Node, old parent and old index be the old parent
+    // (which may be null) and index, and new parent and new index be the new
+    // parent and index."
+    var oldParent = node.parentNode;
+    var oldIndex = getNodeIndex(node);
+
+    // We preserve the global range object, the ranges in the selection, and
+    // any range that's in the extraRanges array.  Any other ranges won't get
+    // updated, because we have no references to them.
+    var ranges = [globalRange].concat(extraRanges);
+    for (var i = 0; i < getSelection().rangeCount; i++) {
+        ranges.push(getSelection().getRangeAt(i));
+    }
+    var boundaryPoints = [];
+    ranges.forEach(function(range) {
+        boundaryPoints.push([range.startContainer, range.startOffset]);
+        boundaryPoints.push([range.endContainer, range.endOffset]);
+    });
+
+    boundaryPoints.forEach(function(boundaryPoint) {
+        // "If a boundary point's node is the same as or a descendant of node,
+        // leave it unchanged, so it moves to the new location."
+        //
+        // No modifications necessary.
+
+        // "If a boundary point's node is new parent and its offset is greater
+        // than new index, add one to its offset."
+        if (boundaryPoint[0] == newParent
+        && boundaryPoint[1] > newIndex) {
+            boundaryPoint[1]++;
+        }
+
+        // "If a boundary point's node is old parent and its offset is old index or
+        // old index + 1, set its node to new parent and add new index − old index
+        // to its offset."
+        if (boundaryPoint[0] == oldParent
+        && (boundaryPoint[1] == oldIndex
+        || boundaryPoint[1] == oldIndex + 1)) {
+            boundaryPoint[0] = newParent;
+            boundaryPoint[1] += newIndex - oldIndex;
+        }
+
+        // "If a boundary point's node is old parent and its offset is greater than
+        // old index + 1, subtract one from its offset."
+        if (boundaryPoint[0] == oldParent
+        && boundaryPoint[1] > oldIndex + 1) {
+            boundaryPoint[1]--;
+        }
+    });
+
+    // Now actually move it and preserve the ranges.
+    if (newParent.childNodes.length == newIndex) {
+        newParent.appendChild(node);
+    } else {
+        newParent.insertBefore(node, newParent.childNodes[newIndex]);
+    }
+
+    globalRange.setStart(boundaryPoints[0][0], boundaryPoints[0][1]);
+    globalRange.setEnd(boundaryPoints[1][0], boundaryPoints[1][1]);
+
+    for (var i = 0; i < extraRanges.length; i++) {
+        extraRanges[i].setStart(boundaryPoints[2*i + 2][0], boundaryPoints[2*i + 2][1]);
+        extraRanges[i].setEnd(boundaryPoints[2*i + 3][0], boundaryPoints[2*i + 3][1]);
+    }
+
+    getSelection().removeAllRanges();
+    for (var i = 1 + extraRanges.length; i < ranges.length; i++) {
+        var newRange = document.createRange();
+        newRange.setStart(boundaryPoints[2*i][0], boundaryPoints[2*i][1]);
+        newRange.setEnd(boundaryPoints[2*i + 1][0], boundaryPoints[2*i + 1][1]);
+        getSelection().addRange(newRange);
+    }
+}
+
+function setTagName(element, newName) {
+    // "If element is an HTML element with local name equal to new name, return
+    // element."
+    if (isHtmlElement(element, newName.toUpperCase())) {
+        return element;
+    }
+
+    // "If element's parent is null, return element."
+    if (!element.parentNode) {
+        return element;
+    }
+
+    // "Let replacement element be the result of calling createElement(new
+    // name) on the ownerDocument of element."
+    var replacementElement = element.ownerDocument.createElement(newName);
+
+    // "Insert replacement element into element's parent immediately before
+    // element."
+    element.parentNode.insertBefore(replacementElement, element);
+
+    // "Copy all attributes of element to replacement element, in order."
+    for (var i = 0; i < element.attributes.length; i++) {
+        replacementElement.setAttributeNS(element.attributes[i].namespaceURI, element.attributes[i].name, element.attributes[i].value);
+    }
+
+    // "While element has children, append the first child of element as the
+    // last child of replacement element, preserving ranges."
+    while (element.childNodes.length) {
+        movePreservingRanges(element.firstChild, replacementElement, replacementElement.childNodes.length);
+    }
+
+    // "Remove element from its parent."
+    element.parentNode.removeChild(element);
+
+    // "Return replacement element."
+    return replacementElement;
+}
+
+function removeExtraneousLineBreaksBefore(node) {
+    // "Let ref be the previousSibling of node."
+    var ref = node.previousSibling;
+
+    // "If ref is null, abort these steps."
+    if (!ref) {
+        return;
+    }
+
+    // "While ref has children, set ref to its lastChild."
+    while (ref.hasChildNodes()) {
+        ref = ref.lastChild;
+    }
+
+    // "While ref is invisible but not an extraneous line break, and ref does
+    // not equal node's parent, set ref to the node before it in tree order."
+    while (isInvisible(ref)
+    && !isExtraneousLineBreak(ref)
+    && ref != node.parentNode) {
+        ref = previousNode(ref);
+    }
+
+    // "If ref is an editable extraneous line break, remove it from its
+    // parent."
+    if (isEditable(ref)
+    && isExtraneousLineBreak(ref)) {
+        ref.parentNode.removeChild(ref);
+    }
+}
+
+function removeExtraneousLineBreaksAtTheEndOf(node) {
+    // "Let ref be node."
+    var ref = node;
+
+    // "While ref has children, set ref to its lastChild."
+    while (ref.hasChildNodes()) {
+        ref = ref.lastChild;
+    }
+
+    // "While ref is invisible but not an extraneous line break, and ref does
+    // not equal node, set ref to the node before it in tree order."
+    while (isInvisible(ref)
+    && !isExtraneousLineBreak(ref)
+    && ref != node) {
+        ref = previousNode(ref);
+    }
+
+    // "If ref is an editable extraneous line break:"
+    if (isEditable(ref)
+    && isExtraneousLineBreak(ref)) {
+        // "While ref's parent is editable and invisible, set ref to its
+        // parent."
+        while (isEditable(ref.parentNode)
+        && isInvisible(ref.parentNode)) {
+            ref = ref.parentNode;
+        }
+
+        // "Remove ref from its parent."
+        ref.parentNode.removeChild(ref);
+    }
+}
+
+// "To remove extraneous line breaks from a node, first remove extraneous line
+// breaks before it, then remove extraneous line breaks at the end of it."
+function removeExtraneousLineBreaksFrom(node) {
+    removeExtraneousLineBreaksBefore(node);
+    removeExtraneousLineBreaksAtTheEndOf(node);
+}
+
+//@}
+///// Wrapping a list of nodes /////
+//@{
+
+function wrap(nodeList, siblingCriteria, newParentInstructions) {
+    // "If not provided, sibling criteria returns false and new parent
+    // instructions returns null."
+    if (typeof siblingCriteria == "undefined") {
+        siblingCriteria = function() { return false };
+    }
+    if (typeof newParentInstructions == "undefined") {
+        newParentInstructions = function() { return null };
+    }
+
+    // "If every member of node list is invisible, and none is a br, return
+    // null and abort these steps."
+    if (nodeList.every(isInvisible)
+    && !nodeList.some(function(node) { return isHtmlElement(node, "br") })) {
+        return null;
+    }
+
+    // "If node list's first member's parent is null, return null and abort
+    // these steps."
+    if (!nodeList[0].parentNode) {
+        return null;
+    }
+
+    // "If node list's last member is an inline node that's not a br, and node
+    // list's last member's nextSibling is a br, append that br to node list."
+    if (isInlineNode(nodeList[nodeList.length - 1])
+    && !isHtmlElement(nodeList[nodeList.length - 1], "br")
+    && isHtmlElement(nodeList[nodeList.length - 1].nextSibling, "br")) {
+        nodeList.push(nodeList[nodeList.length - 1].nextSibling);
+    }
+
+    // "While node list's first member's previousSibling is invisible, prepend
+    // it to node list."
+    while (isInvisible(nodeList[0].previousSibling)) {
+        nodeList.unshift(nodeList[0].previousSibling);
+    }
+
+    // "While node list's last member's nextSibling is invisible, append it to
+    // node list."
+    while (isInvisible(nodeList[nodeList.length - 1].nextSibling)) {
+        nodeList.push(nodeList[nodeList.length - 1].nextSibling);
+    }
+
+    // "If the previousSibling of the first member of node list is editable and
+    // running sibling criteria on it returns true, let new parent be the
+    // previousSibling of the first member of node list."
+    var newParent;
+    if (isEditable(nodeList[0].previousSibling)
+    && siblingCriteria(nodeList[0].previousSibling)) {
+        newParent = nodeList[0].previousSibling;
+
+    // "Otherwise, if the nextSibling of the last member of node list is
+    // editable and running sibling criteria on it returns true, let new parent
+    // be the nextSibling of the last member of node list."
+    } else if (isEditable(nodeList[nodeList.length - 1].nextSibling)
+    && siblingCriteria(nodeList[nodeList.length - 1].nextSibling)) {
+        newParent = nodeList[nodeList.length - 1].nextSibling;
+
+    // "Otherwise, run new parent instructions, and let new parent be the
+    // result."
+    } else {
+        newParent = newParentInstructions();
+    }
+
+    // "If new parent is null, abort these steps and return null."
+    if (!newParent) {
+        return null;
+    }
+
+    // "If new parent's parent is null:"
+    if (!newParent.parentNode) {
+        // "Insert new parent into the parent of the first member of node list
+        // immediately before the first member of node list."
+        nodeList[0].parentNode.insertBefore(newParent, nodeList[0]);
+
+        // "If any range has a boundary point with node equal to the parent of
+        // new parent and offset equal to the index of new parent, add one to
+        // that boundary point's offset."
+        //
+        // Only try to fix the global range.
+        if (globalRange.startContainer == newParent.parentNode
+        && globalRange.startOffset == getNodeIndex(newParent)) {
+            globalRange.setStart(globalRange.startContainer, globalRange.startOffset + 1);
+        }
+        if (globalRange.endContainer == newParent.parentNode
+        && globalRange.endOffset == getNodeIndex(newParent)) {
+            globalRange.setEnd(globalRange.endContainer, globalRange.endOffset + 1);
+        }
+    }
+
+    // "Let original parent be the parent of the first member of node list."
+    var originalParent = nodeList[0].parentNode;
+
+    // "If new parent is before the first member of node list in tree order:"
+    if (isBefore(newParent, nodeList[0])) {
+        // "If new parent is not an inline node, but the last visible child of
+        // new parent and the first visible member of node list are both inline
+        // nodes, and the last child of new parent is not a br, call
+        // createElement("br") on the ownerDocument of new parent and append
+        // the result as the last child of new parent."
+        if (!isInlineNode(newParent)
+        && isInlineNode([].filter.call(newParent.childNodes, isVisible).slice(-1)[0])
+        && isInlineNode(nodeList.filter(isVisible)[0])
+        && !isHtmlElement(newParent.lastChild, "BR")) {
+            newParent.appendChild(newParent.ownerDocument.createElement("br"));
+        }
+
+        // "For each node in node list, append node as the last child of new
+        // parent, preserving ranges."
+        for (var i = 0; i < nodeList.length; i++) {
+            movePreservingRanges(nodeList[i], newParent, -1);
+        }
+
+    // "Otherwise:"
+    } else {
+        // "If new parent is not an inline node, but the first visible child of
+        // new parent and the last visible member of node list are both inline
+        // nodes, and the last member of node list is not a br, call
+        // createElement("br") on the ownerDocument of new parent and insert
+        // the result as the first child of new parent."
+        if (!isInlineNode(newParent)
+        && isInlineNode([].filter.call(newParent.childNodes, isVisible)[0])
+        && isInlineNode(nodeList.filter(isVisible).slice(-1)[0])
+        && !isHtmlElement(nodeList[nodeList.length - 1], "BR")) {
+            newParent.insertBefore(newParent.ownerDocument.createElement("br"), newParent.firstChild);
+        }
+
+        // "For each node in node list, in reverse order, insert node as the
+        // first child of new parent, preserving ranges."
+        for (var i = nodeList.length - 1; i >= 0; i--) {
+            movePreservingRanges(nodeList[i], newParent, 0);
+        }
+    }
+
+    // "If original parent is editable and has no children, remove it from its
+    // parent."
+    if (isEditable(originalParent) && !originalParent.hasChildNodes()) {
+        originalParent.parentNode.removeChild(originalParent);
+    }
+
+    // "If new parent's nextSibling is editable and running sibling criteria on
+    // it returns true:"
+    if (isEditable(newParent.nextSibling)
+    && siblingCriteria(newParent.nextSibling)) {
+        // "If new parent is not an inline node, but new parent's last child
+        // and new parent's nextSibling's first child are both inline nodes,
+        // and new parent's last child is not a br, call createElement("br") on
+        // the ownerDocument of new parent and append the result as the last
+        // child of new parent."
+        if (!isInlineNode(newParent)
+        && isInlineNode(newParent.lastChild)
+        && isInlineNode(newParent.nextSibling.firstChild)
+        && !isHtmlElement(newParent.lastChild, "BR")) {
+            newParent.appendChild(newParent.ownerDocument.createElement("br"));
+        }
+
+        // "While new parent's nextSibling has children, append its first child
+        // as the last child of new parent, preserving ranges."
+        while (newParent.nextSibling.hasChildNodes()) {
+            movePreservingRanges(newParent.nextSibling.firstChild, newParent, -1);
+        }
+
+        // "Remove new parent's nextSibling from its parent."
+        newParent.parentNode.removeChild(newParent.nextSibling);
+    }
+
+    // "Remove extraneous line breaks from new parent."
+    removeExtraneousLineBreaksFrom(newParent);
+
+    // "Return new parent."
+    return newParent;
+}
+
+
+//@}
+///// Allowed children /////
+//@{
+
+// "A name of an element with inline contents is "a", "abbr", "b", "bdi",
+// "bdo", "cite", "code", "dfn", "em", "h1", "h2", "h3", "h4", "h5", "h6", "i",
+// "kbd", "mark", "p", "pre", "q", "rp", "rt", "ruby", "s", "samp", "small",
+// "span", "strong", "sub", "sup", "u", "var", "acronym", "listing", "strike",
+// "xmp", "big", "blink", "font", "marquee", "nobr", or "tt"."
+var namesOfElementsWithInlineContents = ["a", "abbr", "b", "bdi", "bdo",
+    "cite", "code", "dfn", "em", "h1", "h2", "h3", "h4", "h5", "h6", "i",
+    "kbd", "mark", "p", "pre", "q", "rp", "rt", "ruby", "s", "samp", "small",
+    "span", "strong", "sub", "sup", "u", "var", "acronym", "listing", "strike",
+    "xmp", "big", "blink", "font", "marquee", "nobr", "tt"];
+
+// "An element with inline contents is an HTML element whose local name is a
+// name of an element with inline contents."
+function isElementWithInlineContents(node) {
+    return isHtmlElement(node, namesOfElementsWithInlineContents);
+}
+
+function isAllowedChild(child, parent_) {
+    // "If parent is "colgroup", "table", "tbody", "tfoot", "thead", "tr", or
+    // an HTML element with local name equal to one of those, and child is a
+    // Text node whose data does not consist solely of space characters, return
+    // false."
+    if ((["colgroup", "table", "tbody", "tfoot", "thead", "tr"].indexOf(parent_) != -1
+    || isHtmlElement(parent_, ["colgroup", "table", "tbody", "tfoot", "thead", "tr"]))
+    && typeof child == "object"
+    && child.nodeType == Node.TEXT_NODE
+    && !/^[ \t\n\f\r]*$/.test(child.data)) {
+        return false;
+    }
+
+    // "If parent is "script", "style", "plaintext", or "xmp", or an HTML
+    // element with local name equal to one of those, and child is not a Text
+    // node, return false."
+    if ((["script", "style", "plaintext", "xmp"].indexOf(parent_) != -1
+    || isHtmlElement(parent_, ["script", "style", "plaintext", "xmp"]))
+    && (typeof child != "object" || child.nodeType != Node.TEXT_NODE)) {
+        return false;
+    }
+
+    // "If child is a Document, DocumentFragment, or DocumentType, return
+    // false."
+    if (typeof child == "object"
+    && (child.nodeType == Node.DOCUMENT_NODE
+    || child.nodeType == Node.DOCUMENT_FRAGMENT_NODE
+    || child.nodeType == Node.DOCUMENT_TYPE_NODE)) {
+        return false;
+    }
+
+    // "If child is an HTML element, set child to the local name of child."
+    if (isHtmlElement(child)) {
+        child = child.tagName.toLowerCase();
+    }
+
+    // "If child is not a string, return true."
+    if (typeof child != "string") {
+        return true;
+    }
+
+    // "If parent is an HTML element:"
+    if (isHtmlElement(parent_)) {
+        // "If child is "a", and parent or some ancestor of parent is an a,
+        // return false."
+        //
+        // "If child is a prohibited paragraph child name and parent or some
+        // ancestor of parent is an element with inline contents, return
+        // false."
+        //
+        // "If child is "h1", "h2", "h3", "h4", "h5", or "h6", and parent or
+        // some ancestor of parent is an HTML element with local name "h1",
+        // "h2", "h3", "h4", "h5", or "h6", return false."
+        var ancestor = parent_;
+        while (ancestor) {
+            if (child == "a" && isHtmlElement(ancestor, "a")) {
+                return false;
+            }
+            if (prohibitedParagraphChildNames.indexOf(child) != -1
+            && isElementWithInlineContents(ancestor)) {
+                return false;
+            }
+            if (/^h[1-6]$/.test(child)
+            && isHtmlElement(ancestor)
+            && /^H[1-6]$/.test(ancestor.tagName)) {
+                return false;
+            }
+            ancestor = ancestor.parentNode;
+        }
+
+        // "Let parent be the local name of parent."
+        parent_ = parent_.tagName.toLowerCase();
+    }
+
+    // "If parent is an Element or DocumentFragment, return true."
+    if (typeof parent_ == "object"
+    && (parent_.nodeType == Node.ELEMENT_NODE
+    || parent_.nodeType == Node.DOCUMENT_FRAGMENT_NODE)) {
+        return true;
+    }
+
+    // "If parent is not a string, return false."
+    if (typeof parent_ != "string") {
+        return false;
+    }
+
+    // "If parent is on the left-hand side of an entry on the following list,
+    // then return true if child is listed on the right-hand side of that
+    // entry, and false otherwise."
+    switch (parent_) {
+        case "colgroup":
+            return child == "col";
+        case "table":
+            return ["caption", "col", "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"].indexOf(child) != -1;
+        case "tbody":
+        case "thead":
+        case "tfoot":
+            return ["td", "th", "tr"].indexOf(child) != -1;
+        case "tr":
+            return ["td", "th"].indexOf(child) != -1;
+        case "dl":
+            return ["dt", "dd"].indexOf(child) != -1;
+        case "dir":
+        case "ol":
+        case "ul":
+            return ["dir", "li", "ol", "ul"].indexOf(child) != -1;
+        case "hgroup":
+            return /^h[1-6]$/.test(child);
+    }
+
+    // "If child is "body", "caption", "col", "colgroup", "frame", "frameset",
+    // "head", "html", "tbody", "td", "tfoot", "th", "thead", or "tr", return
+    // false."
+    if (["body", "caption", "col", "colgroup", "frame", "frameset", "head",
+    "html", "tbody", "td", "tfoot", "th", "thead", "tr"].indexOf(child) != -1) {
+        return false;
+    }
+
+    // "If child is "dd" or "dt" and parent is not "dl", return false."
+    if (["dd", "dt"].indexOf(child) != -1
+    && parent_ != "dl") {
+        return false;
+    }
+
+    // "If child is "li" and parent is not "ol" or "ul", return false."
+    if (child == "li"
+    && parent_ != "ol"
+    && parent_ != "ul") {
+        return false;
+    }
+
+    // "If parent is on the left-hand side of an entry on the following list
+    // and child is listed on the right-hand side of that entry, return false."
+    var table = [
+        [["a"], ["a"]],
+        [["dd", "dt"], ["dd", "dt"]],
+        [["h1", "h2", "h3", "h4", "h5", "h6"], ["h1", "h2", "h3", "h4", "h5", "h6"]],
+        [["li"], ["li"]],
+        [["nobr"], ["nobr"]],
+        [namesOfElementsWithInlineContents, prohibitedParagraphChildNames],
+        [["td", "th"], ["caption", "col", "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"]],
+    ];
+    for (var i = 0; i < table.length; i++) {
+        if (table[i][0].indexOf(parent_) != -1
+        && table[i][1].indexOf(child) != -1) {
+            return false;
+        }
+    }
+
+    // "Return true."
+    return true;
+}
+
+
+//@}
+
+//////////////////////////////////////
+///// Inline formatting commands /////
+//////////////////////////////////////
+
+///// Inline formatting command definitions /////
+//@{
+
+// "A node node is effectively contained in a range range if range is not
+// collapsed, and at least one of the following holds:"
+function isEffectivelyContained(node, range) {
+    if (range.collapsed) {
+        return false;
+    }
+
+    // "node is contained in range."
+    if (isContained(node, range)) {
+        return true;
+    }
+
+    // "node is range's start node, it is a Text node, and its length is
+    // different from range's start offset."
+    if (node == range.startContainer
+    && node.nodeType == Node.TEXT_NODE
+    && getNodeLength(node) != range.startOffset) {
+        return true;
+    }
+
+    // "node is range's end node, it is a Text node, and range's end offset is
+    // not 0."
+    if (node == range.endContainer
+    && node.nodeType == Node.TEXT_NODE
+    && range.endOffset != 0) {
+        return true;
+    }
+
+    // "node has at least one child; and all its children are effectively
+    // contained in range; and either range's start node is not a descendant of
+    // node or is not a Text node or range's start offset is zero; and either
+    // range's end node is not a descendant of node or is not a Text node or
+    // range's end offset is its end node's length."
+    if (node.hasChildNodes()
+    && [].every.call(node.childNodes, function(child) { return isEffectivelyContained(child, range) })
+    && (!isDescendant(range.startContainer, node)
+    || range.startContainer.nodeType != Node.TEXT_NODE
+    || range.startOffset == 0)
+    && (!isDescendant(range.endContainer, node)
+    || range.endContainer.nodeType != Node.TEXT_NODE
+    || range.endOffset == getNodeLength(range.endContainer))) {
+        return true;
+    }
+
+    return false;
+}
+
+// Like get(All)ContainedNodes(), but for effectively contained nodes.
+function getEffectivelyContainedNodes(range, condition) {
+    if (typeof condition == "undefined") {
+        condition = function() { return true };
+    }
+    var node = range.startContainer;
+    while (isEffectivelyContained(node.parentNode, range)) {
+        node = node.parentNode;
+    }
+
+    var stop = nextNodeDescendants(range.endContainer);
+
+    var nodeList = [];
+    while (isBefore(node, stop)) {
+        if (isEffectivelyContained(node, range)
+        && condition(node)) {
+            nodeList.push(node);
+            node = nextNodeDescendants(node);
+            continue;
+        }
+        node = nextNode(node);
+    }
+    return nodeList;
+}
+
+function getAllEffectivelyContainedNodes(range, condition) {
+    if (typeof condition == "undefined") {
+        condition = function() { return true };
+    }
+    var node = range.startContainer;
+    while (isEffectivelyContained(node.parentNode, range)) {
+        node = node.parentNode;
+    }
+
+    var stop = nextNodeDescendants(range.endContainer);
+
+    var nodeList = [];
+    while (isBefore(node, stop)) {
+        if (isEffectivelyContained(node, range)
+        && condition(node)) {
+            nodeList.push(node);
+        }
+        node = nextNode(node);
+    }
+    return nodeList;
+}
+
+// "A modifiable element is a b, em, i, s, span, strong, sub, sup, or u element
+// with no attributes except possibly style; or a font element with no
+// attributes except possibly style, color, face, and/or size; or an a element
+// with no attributes except possibly style and/or href."
+function isModifiableElement(node) {
+    if (!isHtmlElement(node)) {
+        return false;
+    }
+
+    if (["B", "EM", "I", "S", "SPAN", "STRIKE", "STRONG", "SUB", "SUP", "U"].indexOf(node.tagName) != -1) {
+        if (node.attributes.length == 0) {
+            return true;
+        }
+
+        if (node.attributes.length == 1
+        && node.hasAttribute("style")) {
+            return true;
+        }
+    }
+
+    if (node.tagName == "FONT" || node.tagName == "A") {
+        var numAttrs = node.attributes.length;
+
+        if (node.hasAttribute("style")) {
+            numAttrs--;
+        }
+
+        if (node.tagName == "FONT") {
+            if (node.hasAttribute("color")) {
+                numAttrs--;
+            }
+
+            if (node.hasAttribute("face")) {
+                numAttrs--;
+            }
+
+            if (node.hasAttribute("size")) {
+                numAttrs--;
+            }
+        }
+
+        if (node.tagName == "A"
+        && node.hasAttribute("href")) {
+            numAttrs--;
+        }
+
+        if (numAttrs == 0) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+function isSimpleModifiableElement(node) {
+    // "A simple modifiable element is an HTML element for which at least one
+    // of the following holds:"
+    if (!isHtmlElement(node)) {
+        return false;
+    }
+
+    // Only these elements can possibly be a simple modifiable element.
+    if (["A", "B", "EM", "FONT", "I", "S", "SPAN", "STRIKE", "STRONG", "SUB", "SUP", "U"].indexOf(node.tagName) == -1) {
+        return false;
+    }
+
+    // "It is an a, b, em, font, i, s, span, strike, strong, sub, sup, or u
+    // element with no attributes."
+    if (node.attributes.length == 0) {
+        return true;
+    }
+
+    // If it's got more than one attribute, everything after this fails.
+    if (node.attributes.length > 1) {
+        return false;
+    }
+
+    // "It is an a, b, em, font, i, s, span, strike, strong, sub, sup, or u
+    // element with exactly one attribute, which is style, which sets no CSS
+    // properties (including invalid or unrecognized properties)."
+    //
+    // Not gonna try for invalid or unrecognized.
+    if (node.hasAttribute("style")
+    && node.style.length == 0) {
+        return true;
+    }
+
+    // "It is an a element with exactly one attribute, which is href."
+    if (node.tagName == "A"
+    && node.hasAttribute("href")) {
+        return true;
+    }
+
+    // "It is a font element with exactly one attribute, which is either color,
+    // face, or size."
+    if (node.tagName == "FONT"
+    && (node.hasAttribute("color")
+    || node.hasAttribute("face")
+    || node.hasAttribute("size")
+    )) {
+        return true;
+    }
+
+    // "It is a b or strong element with exactly one attribute, which is style,
+    // and the style attribute sets exactly one CSS property (including invalid
+    // or unrecognized properties), which is "font-weight"."
+    if ((node.tagName == "B" || node.tagName == "STRONG")
+    && node.hasAttribute("style")
+    && node.style.length == 1
+    && node.style.fontWeight != "") {
+        return true;
+    }
+
+    // "It is an i or em element with exactly one attribute, which is style,
+    // and the style attribute sets exactly one CSS property (including invalid
+    // or unrecognized properties), which is "font-style"."
+    if ((node.tagName == "I" || node.tagName == "EM")
+    && node.hasAttribute("style")
+    && node.style.length == 1
+    && node.style.fontStyle != "") {
+        return true;
+    }
+
+    // "It is an a, font, or span element with exactly one attribute, which is
+    // style, and the style attribute sets exactly one CSS property (including
+    // invalid or unrecognized properties), and that property is not
+    // "text-decoration"."
+    if ((node.tagName == "A" || node.tagName == "FONT" || node.tagName == "SPAN")
+    && node.hasAttribute("style")
+    && node.style.length == 1
+    && node.style.textDecoration == "") {
+        return true;
+    }
+
+    // "It is an a, font, s, span, strike, or u element with exactly one
+    // attribute, which is style, and the style attribute sets exactly one CSS
+    // property (including invalid or unrecognized properties), which is
+    // "text-decoration", which is set to "line-through" or "underline" or
+    // "overline" or "none"."
+    //
+    // The weird extra node.style.length check is for Firefox, which as of
+    // 8.0a2 has annoying and weird behavior here.
+    if (["A", "FONT", "S", "SPAN", "STRIKE", "U"].indexOf(node.tagName) != -1
+    && node.hasAttribute("style")
+    && (node.style.length == 1
+        || (node.style.length == 4
+            && "MozTextBlink" in node.style
+            && "MozTextDecorationColor" in node.style
+            && "MozTextDecorationLine" in node.style
+            && "MozTextDecorationStyle" in node.style)
+        || (node.style.length == 4
+            && "MozTextBlink" in node.style
+            && "textDecorationColor" in node.style
+            && "textDecorationLine" in node.style
+            && "textDecorationStyle" in node.style)
+    )
+    && (node.style.textDecoration == "line-through"
+    || node.style.textDecoration == "underline"
+    || node.style.textDecoration == "overline"
+    || node.style.textDecoration == "none")) {
+        return true;
+    }
+
+    return false;
+}
+
+// "A formattable node is an editable visible node that is either a Text node,
+// an img, or a br."
+function isFormattableNode(node) {
+    return isEditable(node)
+        && isVisible(node)
+        && (node.nodeType == Node.TEXT_NODE
+        || isHtmlElement(node, ["img", "br"]));
+}
+
+// "Two quantities are equivalent values for a command if either both are null,
+// or both are strings and they're equal and the command does not define any
+// equivalent values, or both are strings and the command defines equivalent
+// values and they match the definition."
+function areEquivalentValues(command, val1, val2) {
+    if (val1 === null && val2 === null) {
+        return true;
+    }
+
+    if (typeof val1 == "string"
+    && typeof val2 == "string"
+    && val1 == val2
+    && !("equivalentValues" in commands[command])) {
+        return true;
+    }
+
+    if (typeof val1 == "string"
+    && typeof val2 == "string"
+    && "equivalentValues" in commands[command]
+    && commands[command].equivalentValues(val1, val2)) {
+        return true;
+    }
+
+    return false;
+}
+
+// "Two quantities are loosely equivalent values for a command if either they
+// are equivalent values for the command, or if the command is the fontSize
+// command; one of the quantities is one of "x-small", "small", "medium",
+// "large", "x-large", "xx-large", or "xxx-large"; and the other quantity is
+// the resolved value of "font-size" on a font element whose size attribute has
+// the corresponding value set ("1" through "7" respectively)."
+function areLooselyEquivalentValues(command, val1, val2) {
+    if (areEquivalentValues(command, val1, val2)) {
+        return true;
+    }
+
+    if (command != "fontsize"
+    || typeof val1 != "string"
+    || typeof val2 != "string") {
+        return false;
+    }
+
+    // Static variables in JavaScript?
+    var callee = areLooselyEquivalentValues;
+    if (callee.sizeMap === undefined) {
+        callee.sizeMap = {};
+        var font = document.createElement("font");
+        document.body.appendChild(font);
+        ["x-small", "small", "medium", "large", "x-large", "xx-large",
+        "xxx-large"].forEach(function(keyword) {
+            font.size = cssSizeToLegacy(keyword);
+            callee.sizeMap[keyword] = getComputedStyle(font).fontSize;
+        });
+        document.body.removeChild(font);
+    }
+
+    return val1 === callee.sizeMap[val2]
+        || val2 === callee.sizeMap[val1];
+}
+
+//@}
+///// Assorted inline formatting command algorithms /////
+//@{
+
+function getEffectiveCommandValue(node, command) {
+    // "If neither node nor its parent is an Element, return null."
+    if (node.nodeType != Node.ELEMENT_NODE
+    && (!node.parentNode || node.parentNode.nodeType != Node.ELEMENT_NODE)) {
+        return null;
+    }
+
+    // "If node is not an Element, return the effective command value of its
+    // parent for command."
+    if (node.nodeType != Node.ELEMENT_NODE) {
+        return getEffectiveCommandValue(node.parentNode, command);
+    }
+
+    // "If command is "createLink" or "unlink":"
+    if (command == "createlink" || command == "unlink") {
+        // "While node is not null, and is not an a element that has an href
+        // attribute, set node to its parent."
+        while (node
+        && (!isHtmlElement(node)
+        || node.tagName != "A"
+        || !node.hasAttribute("href"))) {
+            node = node.parentNode;
+        }
+
+        // "If node is null, return null."
+        if (!node) {
+            return null;
+        }
+
+        // "Return the value of node's href attribute."
+        return node.getAttribute("href");
+    }
+
+    // "If command is "backColor" or "hiliteColor":"
+    if (command == "backcolor"
+    || command == "hilitecolor") {
+        // "While the resolved value of "background-color" on node is any
+        // fully transparent value, and node's parent is an Element, set
+        // node to its parent."
+        //
+        // Another lame hack to avoid flawed APIs.
+        while ((getComputedStyle(node).backgroundColor == "rgba(0, 0, 0, 0)"
+        || getComputedStyle(node).backgroundColor === ""
+        || getComputedStyle(node).backgroundColor == "transparent")
+        && node.parentNode
+        && node.parentNode.nodeType == Node.ELEMENT_NODE) {
+            node = node.parentNode;
+        }
+
+        // "Return the resolved value of "background-color" for node."
+        return getComputedStyle(node).backgroundColor;
+    }
+
+    // "If command is "subscript" or "superscript":"
+    if (command == "subscript" || command == "superscript") {
+        // "Let affected by subscript and affected by superscript be two
+        // boolean variables, both initially false."
+        var affectedBySubscript = false;
+        var affectedBySuperscript = false;
+
+        // "While node is an inline node:"
+        while (isInlineNode(node)) {
+            var verticalAlign = getComputedStyle(node).verticalAlign;
+
+            // "If node is a sub, set affected by subscript to true."
+            if (isHtmlElement(node, "sub")) {
+                affectedBySubscript = true;
+            // "Otherwise, if node is a sup, set affected by superscript to
+            // true."
+            } else if (isHtmlElement(node, "sup")) {
+                affectedBySuperscript = true;
+            }
+
+            // "Set node to its parent."
+            node = node.parentNode;
+        }
+
+        // "If affected by subscript and affected by superscript are both true,
+        // return the string "mixed"."
+        if (affectedBySubscript && affectedBySuperscript) {
+            return "mixed";
+        }
+
+        // "If affected by subscript is true, return "subscript"."
+        if (affectedBySubscript) {
+            return "subscript";
+        }
+
+        // "If affected by superscript is true, return "superscript"."
+        if (affectedBySuperscript) {
+            return "superscript";
+        }
+
+        // "Return null."
+        return null;
+    }
+
+    // "If command is "strikethrough", and the "text-decoration" property of
+    // node or any of its ancestors has resolved value containing
+    // "line-through", return "line-through". Otherwise, return null."
+    if (command == "strikethrough") {
+        do {
+            if (getComputedStyle(node).textDecoration.indexOf("line-through") != -1) {
+                return "line-through";
+            }
+            node = node.parentNode;
+        } while (node && node.nodeType == Node.ELEMENT_NODE);
+        return null;
+    }
+
+    // "If command is "underline", and the "text-decoration" property of node
+    // or any of its ancestors has resolved value containing "underline",
+    // return "underline". Otherwise, return null."
+    if (command == "underline") {
+        do {
+            if (getComputedStyle(node).textDecoration.indexOf("underline") != -1) {
+                return "underline";
+            }
+            node = node.parentNode;
+        } while (node && node.nodeType == Node.ELEMENT_NODE);
+        return null;
+    }
+
+    if (!("relevantCssProperty" in commands[command])) {
+        throw "Bug: no relevantCssProperty for " + command + " in getEffectiveCommandValue";
+    }
+
+    // "Return the resolved value for node of the relevant CSS property for
+    // command."
+    return getComputedStyle(node)[commands[command].relevantCssProperty];
+}
+
+function getSpecifiedCommandValue(element, command) {
+    // "If command is "backColor" or "hiliteColor" and element's display
+    // property does not have resolved value "inline", return null."
+    if ((command == "backcolor" || command == "hilitecolor")
+    && getComputedStyle(element).display != "inline") {
+        return null;
+    }
+
+    // "If command is "createLink" or "unlink":"
+    if (command == "createlink" || command == "unlink") {
+        // "If element is an a element and has an href attribute, return the
+        // value of that attribute."
+        if (isHtmlElement(element)
+        && element.tagName == "A"
+        && element.hasAttribute("href")) {
+            return element.getAttribute("href");
+        }
+
+        // "Return null."
+        return null;
+    }
+
+    // "If command is "subscript" or "superscript":"
+    if (command == "subscript" || command == "superscript") {
+        // "If element is a sup, return "superscript"."
+        if (isHtmlElement(element, "sup")) {
+            return "superscript";
+        }
+
+        // "If element is a sub, return "subscript"."
+        if (isHtmlElement(element, "sub")) {
+            return "subscript";
+        }
+
+        // "Return null."
+        return null;
+    }
+
+    // "If command is "strikethrough", and element has a style attribute set,
+    // and that attribute sets "text-decoration":"
+    if (command == "strikethrough"
+    && element.style.textDecoration != "") {
+        // "If element's style attribute sets "text-decoration" to a value
+        // containing "line-through", return "line-through"."
+        if (element.style.textDecoration.indexOf("line-through") != -1) {
+            return "line-through";
+        }
+
+        // "Return null."
+        return null;
+    }
+
+    // "If command is "strikethrough" and element is a s or strike element,
+    // return "line-through"."
+    if (command == "strikethrough"
+    && isHtmlElement(element, ["S", "STRIKE"])) {
+        return "line-through";
+    }
+
+    // "If command is "underline", and element has a style attribute set, and
+    // that attribute sets "text-decoration":"
+    if (command == "underline"
+    && element.style.textDecoration != "") {
+        // "If element's style attribute sets "text-decoration" to a value
+        // containing "underline", return "underline"."
+        if (element.style.textDecoration.indexOf("underline") != -1) {
+            return "underline";
+        }
+
+        // "Return null."
+        return null;
+    }
+
+    // "If command is "underline" and element is a u element, return
+    // "underline"."
+    if (command == "underline"
+    && isHtmlElement(element, "U")) {
+        return "underline";
+    }
+
+    // "Let property be the relevant CSS property for command."
+    var property = commands[command].relevantCssProperty;
+
+    // "If property is null, return null."
+    if (property === null) {
+        return null;
+    }
+
+    // "If element has a style attribute set, and that attribute has the
+    // effect of setting property, return the value that it sets property to."
+    if (element.style[property] != "") {
+        return element.style[property];
+    }
+
+    // "If element is a font element that has an attribute whose effect is
+    // to create a presentational hint for property, return the value that the
+    // hint sets property to.  (For a size of 7, this will be the non-CSS value
+    // "xxx-large".)"
+    if (isHtmlNamespace(element.namespaceURI)
+    && element.tagName == "FONT") {
+        if (property == "color" && element.hasAttribute("color")) {
+            return element.color;
+        }
+        if (property == "fontFamily" && element.hasAttribute("face")) {
+            return element.face;
+        }
+        if (property == "fontSize" && element.hasAttribute("size")) {
+            // This is not even close to correct in general.
+            var size = parseInt(element.size);
+            if (size < 1) {
+                size = 1;
+            }
+            if (size > 7) {
+                size = 7;
+            }
+            return {
+                1: "x-small",
+                2: "small",
+                3: "medium",
+                4: "large",
+                5: "x-large",
+                6: "xx-large",
+                7: "xxx-large"
+            }[size];
+        }
+    }
+
+    // "If element is in the following list, and property is equal to the
+    // CSS property name listed for it, return the string listed for it."
+    //
+    // A list follows, whose meaning is copied here.
+    if (property == "fontWeight"
+    && (element.tagName == "B" || element.tagName == "STRONG")) {
+        return "bold";
+    }
+    if (property == "fontStyle"
+    && (element.tagName == "I" || element.tagName == "EM")) {
+        return "italic";
+    }
+
+    // "Return null."
+    return null;
+}
+
+function reorderModifiableDescendants(node, command, newValue) {
+    // "Let candidate equal node."
+    var candidate = node;
+
+    // "While candidate is a modifiable element, and candidate has exactly one
+    // child, and that child is also a modifiable element, and candidate is not
+    // a simple modifiable element or candidate's specified command value for
+    // command is not equivalent to new value, set candidate to its child."
+    while (isModifiableElement(candidate)
+    && candidate.childNodes.length == 1
+    && isModifiableElement(candidate.firstChild)
+    && (!isSimpleModifiableElement(candidate)
+    || !areEquivalentValues(command, getSpecifiedCommandValue(candidate, command), newValue))) {
+        candidate = candidate.firstChild;
+    }
+
+    // "If candidate is node, or is not a simple modifiable element, or its
+    // specified command value is not equivalent to new value, or its effective
+    // command value is not loosely equivalent to new value, abort these
+    // steps."
+    if (candidate == node
+    || !isSimpleModifiableElement(candidate)
+    || !areEquivalentValues(command, getSpecifiedCommandValue(candidate, command), newValue)
+    || !areLooselyEquivalentValues(command, getEffectiveCommandValue(candidate, command), newValue)) {
+        return;
+    }
+
+    // "While candidate has children, insert the first child of candidate into
+    // candidate's parent immediately before candidate, preserving ranges."
+    while (candidate.hasChildNodes()) {
+        movePreservingRanges(candidate.firstChild, candidate.parentNode, getNodeIndex(candidate));
+    }
+
+    // "Insert candidate into node's parent immediately after node."
+    node.parentNode.insertBefore(candidate, node.nextSibling);
+
+    // "Append the node as the last child of candidate, preserving ranges."
+    movePreservingRanges(node, candidate, -1);
+}
+
+function recordValues(nodeList) {
+    // "Let values be a list of (node, command, specified command value)
+    // triples, initially empty."
+    var values = [];
+
+    // "For each node in node list, for each command in the list "subscript",
+    // "bold", "fontName", "fontSize", "foreColor", "hiliteColor", "italic",
+    // "strikethrough", and "underline" in that order:"
+    nodeList.forEach(function(node) {
+        ["subscript", "bold", "fontname", "fontsize", "forecolor",
+        "hilitecolor", "italic", "strikethrough", "underline"].forEach(function(command) {
+            // "Let ancestor equal node."
+            var ancestor = node;
+
+            // "If ancestor is not an Element, set it to its parent."
+            if (ancestor.nodeType != Node.ELEMENT_NODE) {
+                ancestor = ancestor.parentNode;
+            }
+
+            // "While ancestor is an Element and its specified command value
+            // for command is null, set it to its parent."
+            while (ancestor
+            && ancestor.nodeType == Node.ELEMENT_NODE
+            && getSpecifiedCommandValue(ancestor, command) === null) {
+                ancestor = ancestor.parentNode;
+            }
+
+            // "If ancestor is an Element, add (node, command, ancestor's
+            // specified command value for command) to values. Otherwise add
+            // (node, command, null) to values."
+            if (ancestor && ancestor.nodeType == Node.ELEMENT_NODE) {
+                values.push([node, command, getSpecifiedCommandValue(ancestor, command)]);
+            } else {
+                values.push([node, command, null]);
+            }
+        });
+    });
+
+    // "Return values."
+    return values;
+}
+
+function restoreValues(values) {
+    // "For each (node, command, value) triple in values:"
+    values.forEach(function(triple) {
+        var node = triple[0];
+        var command = triple[1];
+        var value = triple[2];
+
+        // "Let ancestor equal node."
+        var ancestor = node;
+
+        // "If ancestor is not an Element, set it to its parent."
+        if (!ancestor || ancestor.nodeType != Node.ELEMENT_NODE) {
+            ancestor = ancestor.parentNode;
+        }
+
+        // "While ancestor is an Element and its specified command value for
+        // command is null, set it to its parent."
+        while (ancestor
+        && ancestor.nodeType == Node.ELEMENT_NODE
+        && getSpecifiedCommandValue(ancestor, command) === null) {
+            ancestor = ancestor.parentNode;
+        }
+
+        // "If value is null and ancestor is an Element, push down values on
+        // node for command, with new value null."
+        if (value === null
+        && ancestor
+        && ancestor.nodeType == Node.ELEMENT_NODE) {
+            pushDownValues(node, command, null);
+
+        // "Otherwise, if ancestor is an Element and its specified command
+        // value for command is not equivalent to value, or if ancestor is not
+        // an Element and value is not null, force the value of command to
+        // value on node."
+        } else if ((ancestor
+        && ancestor.nodeType == Node.ELEMENT_NODE
+        && !areEquivalentValues(command, getSpecifiedCommandValue(ancestor, command), value))
+        || ((!ancestor || ancestor.nodeType != Node.ELEMENT_NODE)
+        && value !== null)) {
+            forceValue(node, command, value);
+        }
+    });
+}
+
+
+//@}
+///// Clearing an element's value /////
+//@{
+
+function clearValue(element, command) {
+    // "If element is not editable, return the empty list."
+    if (!isEditable(element)) {
+        return [];
+    }
+
+    // "If element's specified command value for command is null, return the
+    // empty list."
+    if (getSpecifiedCommandValue(element, command) === null) {
+        return [];
+    }
+
+    // "If element is a simple modifiable element:"
+    if (isSimpleModifiableElement(element)) {
+        // "Let children be the children of element."
+        var children = Array.prototype.slice.call(element.childNodes);
+
+        // "For each child in children, insert child into element's parent
+        // immediately before element, preserving ranges."
+        for (var i = 0; i < children.length; i++) {
+            movePreservingRanges(children[i], element.parentNode, getNodeIndex(element));
+        }
+
+        // "Remove element from its parent."
+        element.parentNode.removeChild(element);
+
+        // "Return children."
+        return children;
+    }
+
+    // "If command is "strikethrough", and element has a style attribute that
+    // sets "text-decoration" to some value containing "line-through", delete
+    // "line-through" from the value."
+    if (command == "strikethrough"
+    && element.style.textDecoration.indexOf("line-through") != -1) {
+        if (element.style.textDecoration == "line-through") {
+            element.style.textDecoration = "";
+        } else {
+            element.style.textDecoration = element.style.textDecoration.replace("line-through", "");
+        }
+        if (element.getAttribute("style") == "") {
+            element.removeAttribute("style");
+        }
+    }
+
+    // "If command is "underline", and element has a style attribute that sets
+    // "text-decoration" to some value containing "underline", delete
+    // "underline" from the value."
+    if (command == "underline"
+    && element.style.textDecoration.indexOf("underline") != -1) {
+        if (element.style.textDecoration == "underline") {
+            element.style.textDecoration = "";
+        } else {
+            element.style.textDecoration = element.style.textDecoration.replace("underline", "");
+        }
+        if (element.getAttribute("style") == "") {
+            element.removeAttribute("style");
+        }
+    }
+
+    // "If the relevant CSS property for command is not null, unset the CSS
+    // property property of element."
+    if (commands[command].relevantCssProperty !== null) {
+        element.style[commands[command].relevantCssProperty] = '';
+        if (element.getAttribute("style") == "") {
+            element.removeAttribute("style");
+        }
+    }
+
+    // "If element is a font element:"
+    if (isHtmlNamespace(element.namespaceURI) && element.tagName == "FONT") {
+        // "If command is "foreColor", unset element's color attribute, if set."
+        if (command == "forecolor") {
+            element.removeAttribute("color");
+        }
+
+        // "If command is "fontName", unset element's face attribute, if set."
+        if (command == "fontname") {
+            element.removeAttribute("face");
+        }
+
+        // "If command is "fontSize", unset element's size attribute, if set."
+        if (command == "fontsize") {
+            element.removeAttribute("size");
+        }
+    }
+
+    // "If element is an a element and command is "createLink" or "unlink",
+    // unset the href property of element."
+    if (isHtmlElement(element, "A")
+    && (command == "createlink" || command == "unlink")) {
+        element.removeAttribute("href");
+    }
+
+    // "If element's specified command value for command is null, return the
+    // empty list."
+    if (getSpecifiedCommandValue(element, command) === null) {
+        return [];
+    }
+
+    // "Set the tag name of element to "span", and return the one-node list
+    // consisting of the result."
+    return [setTagName(element, "span")];
+}
+
+
+//@}
+///// Pushing down values /////
+//@{
+
+function pushDownValues(node, command, newValue) {
+    // "If node's parent is not an Element, abort this algorithm."
+    if (!node.parentNode
+    || node.parentNode.nodeType != Node.ELEMENT_NODE) {
+        return;
+    }
+
+    // "If the effective command value of command is loosely equivalent to new
+    // value on node, abort this algorithm."
+    if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
+        return;
+    }
+
+    // "Let current ancestor be node's parent."
+    var currentAncestor = node.parentNode;
+
+    // "Let ancestor list be a list of Nodes, initially empty."
+    var ancestorList = [];
+
+    // "While current ancestor is an editable Element and the effective command
+    // value of command is not loosely equivalent to new value on it, append
+    // current ancestor to ancestor list, then set current ancestor to its
+    // parent."
+    while (isEditable(currentAncestor)
+    && currentAncestor.nodeType == Node.ELEMENT_NODE
+    && !areLooselyEquivalentValues(command, getEffectiveCommandValue(currentAncestor, command), newValue)) {
+        ancestorList.push(currentAncestor);
+        currentAncestor = currentAncestor.parentNode;
+    }
+
+    // "If ancestor list is empty, abort this algorithm."
+    if (!ancestorList.length) {
+        return;
+    }
+
+    // "Let propagated value be the specified command value of command on the
+    // last member of ancestor list."
+    var propagatedValue = getSpecifiedCommandValue(ancestorList[ancestorList.length - 1], command);
+
+    // "If propagated value is null and is not equal to new value, abort this
+    // algorithm."
+    if (propagatedValue === null && propagatedValue != newValue) {
+        return;
+    }
+
+    // "If the effective command value for the parent of the last member of
+    // ancestor list is not loosely equivalent to new value, and new value is
+    // not null, abort this algorithm."
+    if (newValue !== null
+    && !areLooselyEquivalentValues(command, getEffectiveCommandValue(ancestorList[ancestorList.length - 1].parentNode, command), newValue)) {
+        return;
+    }
+
+    // "While ancestor list is not empty:"
+    while (ancestorList.length) {
+        // "Let current ancestor be the last member of ancestor list."
+        // "Remove the last member from ancestor list."
+        var currentAncestor = ancestorList.pop();
+
+        // "If the specified command value of current ancestor for command is
+        // not null, set propagated value to that value."
+        if (getSpecifiedCommandValue(currentAncestor, command) !== null) {
+            propagatedValue = getSpecifiedCommandValue(currentAncestor, command);
+        }
+
+        // "Let children be the children of current ancestor."
+        var children = Array.prototype.slice.call(currentAncestor.childNodes);
+
+        // "If the specified command value of current ancestor for command is
+        // not null, clear the value of current ancestor."
+        if (getSpecifiedCommandValue(currentAncestor, command) !== null) {
+            clearValue(currentAncestor, command);
+        }
+
+        // "For every child in children:"
+        for (var i = 0; i < children.length; i++) {
+            var child = children[i];
+
+            // "If child is node, continue with the next child."
+            if (child == node) {
+                continue;
+            }
+
+            // "If child is an Element whose specified command value for
+            // command is neither null nor equivalent to propagated value,
+            // continue with the next child."
+            if (child.nodeType == Node.ELEMENT_NODE
+            && getSpecifiedCommandValue(child, command) !== null
+            && !areEquivalentValues(command, propagatedValue, getSpecifiedCommandValue(child, command))) {
+                continue;
+            }
+
+            // "If child is the last member of ancestor list, continue with the
+            // next child."
+            if (child == ancestorList[ancestorList.length - 1]) {
+                continue;
+            }
+
+            // "Force the value of child, with command as in this algorithm
+            // and new value equal to propagated value."
+            forceValue(child, command, propagatedValue);
+        }
+    }
+}
+
+
+//@}
+///// Forcing the value of a node /////
+//@{
+
+function forceValue(node, command, newValue) {
+    // "If node's parent is null, abort this algorithm."
+    if (!node.parentNode) {
+        return;
+    }
+
+    // "If new value is null, abort this algorithm."
+    if (newValue === null) {
+        return;
+    }
+
+    // "If node is an allowed child of "span":"
+    if (isAllowedChild(node, "span")) {
+        // "Reorder modifiable descendants of node's previousSibling."
+        reorderModifiableDescendants(node.previousSibling, command, newValue);
+
+        // "Reorder modifiable descendants of node's nextSibling."
+        reorderModifiableDescendants(node.nextSibling, command, newValue);
+
+        // "Wrap the one-node list consisting of node, with sibling criteria
+        // returning true for a simple modifiable element whose specified
+        // command value is equivalent to new value and whose effective command
+        // value is loosely equivalent to new value and false otherwise, and
+        // with new parent instructions returning null."
+        wrap([node],
+            function(node) {
+                return isSimpleModifiableElement(node)
+                    && areEquivalentValues(command, getSpecifiedCommandValue(node, command), newValue)
+                    && areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue);
+            },
+            function() { return null }
+        );
+    }
+
+    // "If node is invisible, abort this algorithm."
+    if (isInvisible(node)) {
+        return;
+    }
+
+    // "If the effective command value of command is loosely equivalent to new
+    // value on node, abort this algorithm."
+    if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
+        return;
+    }
+
+    // "If node is not an allowed child of "span":"
+    if (!isAllowedChild(node, "span")) {
+        // "Let children be all children of node, omitting any that are
+        // Elements whose specified command value for command is neither null
+        // nor equivalent to new value."
+        var children = [];
+        for (var i = 0; i < node.childNodes.length; i++) {
+            if (node.childNodes[i].nodeType == Node.ELEMENT_NODE) {
+                var specifiedValue = getSpecifiedCommandValue(node.childNodes[i], command);
+
+                if (specifiedValue !== null
+                && !areEquivalentValues(command, newValue, specifiedValue)) {
+                    continue;
+                }
+            }
+            children.push(node.childNodes[i]);
+        }
+
+        // "Force the value of each Node in children, with command and new
+        // value as in this invocation of the algorithm."
+        for (var i = 0; i < children.length; i++) {
+            forceValue(children[i], command, newValue);
+        }
+
+        // "Abort this algorithm."
+        return;
+    }
+
+    // "If the effective command value of command is loosely equivalent to new
+    // value on node, abort this algorithm."
+    if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
+        return;
+    }
+
+    // "Let new parent be null."
+    var newParent = null;
+
+    // "If the CSS styling flag is false:"
+    if (!cssStylingFlag) {
+        // "If command is "bold" and new value is "bold", let new parent be the
+        // result of calling createElement("b") on the ownerDocument of node."
+        if (command == "bold" && (newValue == "bold" || newValue == "700")) {
+            newParent = node.ownerDocument.createElement("b");
+        }
+
+        // "If command is "italic" and new value is "italic", let new parent be
+        // the result of calling createElement("i") on the ownerDocument of
+        // node."
+        if (command == "italic" && newValue == "italic") {
+            newParent = node.ownerDocument.createElement("i");
+        }
+
+        // "If command is "strikethrough" and new value is "line-through", let
+        // new parent be the result of calling createElement("s") on the
+        // ownerDocument of node."
+        if (command == "strikethrough" && newValue == "line-through") {
+            newParent = node.ownerDocument.createElement("s");
+        }
+
+        // "If command is "underline" and new value is "underline", let new
+        // parent be the result of calling createElement("u") on the
+        // ownerDocument of node."
+        if (command == "underline" && newValue == "underline") {
+            newParent = node.ownerDocument.createElement("u");
+        }
+
+        // "If command is "foreColor", and new value is fully opaque with red,
+        // green, and blue components in the range 0 to 255:"
+        if (command == "forecolor" && parseSimpleColor(newValue)) {
+            // "Let new parent be the result of calling createElement("font")
+            // on the ownerDocument of node."
+            newParent = node.ownerDocument.createElement("font");
+
+            // "Set the color attribute of new parent to the result of applying
+            // the rules for serializing simple color values to new value
+            // (interpreted as a simple color)."
+            newParent.setAttribute("color", parseSimpleColor(newValue));
+        }
+
+        // "If command is "fontName", let new parent be the result of calling
+        // createElement("font") on the ownerDocument of node, then set the
+        // face attribute of new parent to new value."
+        if (command == "fontname") {
+            newParent = node.ownerDocument.createElement("font");
+            newParent.face = newValue;
+        }
+    }
+
+    // "If command is "createLink" or "unlink":"
+    if (command == "createlink" || command == "unlink") {
+        // "Let new parent be the result of calling createElement("a") on the
+        // ownerDocument of node."
+        newParent = node.ownerDocument.createElement("a");
+
+        // "Set the href attribute of new parent to new value."
+        newParent.setAttribute("href", newValue);
+
+        // "Let ancestor be node's parent."
+        var ancestor = node.parentNode;
+
+        // "While ancestor is not null:"
+        while (ancestor) {
+            // "If ancestor is an a, set the tag name of ancestor to "span",
+            // and let ancestor be the result."
+            if (isHtmlElement(ancestor, "A")) {
+                ancestor = setTagName(ancestor, "span");
+            }
+
+            // "Set ancestor to its parent."
+            ancestor = ancestor.parentNode;
+        }
+    }
+
+    // "If command is "fontSize"; and new value is one of "x-small", "small",
+    // "medium", "large", "x-large", "xx-large", or "xxx-large"; and either the
+    // CSS styling flag is false, or new value is "xxx-large": let new parent
+    // be the result of calling createElement("font") on the ownerDocument of
+    // node, then set the size attribute of new parent to the number from the
+    // following table based on new value: [table omitted]"
+    if (command == "fontsize"
+    && ["x-small", "small", "medium", "large", "x-large", "xx-large", "xxx-large"].indexOf(newValue) != -1
+    && (!cssStylingFlag || newValue == "xxx-large")) {
+        newParent = node.ownerDocument.createElement("font");
+        newParent.size = cssSizeToLegacy(newValue);
+    }
+
+    // "If command is "subscript" or "superscript" and new value is
+    // "subscript", let new parent be the result of calling
+    // createElement("sub") on the ownerDocument of node."
+    if ((command == "subscript" || command == "superscript")
+    && newValue == "subscript") {
+        newParent = node.ownerDocument.createElement("sub");
+    }
+
+    // "If command is "subscript" or "superscript" and new value is
+    // "superscript", let new parent be the result of calling
+    // createElement("sup") on the ownerDocument of node."
+    if ((command == "subscript" || command == "superscript")
+    && newValue == "superscript") {
+        newParent = node.ownerDocument.createElement("sup");
+    }
+
+    // "If new parent is null, let new parent be the result of calling
+    // createElement("span") on the ownerDocument of node."
+    if (!newParent) {
+        newParent = node.ownerDocument.createElement("span");
+    }
+
+    // "Insert new parent in node's parent before node."
+    node.parentNode.insertBefore(newParent, node);
+
+    // "If the effective command value of command for new parent is not loosely
+    // equivalent to new value, and the relevant CSS property for command is
+    // not null, set that CSS property of new parent to new value (if the new
+    // value would be valid)."
+    var property = commands[command].relevantCssProperty;
+    if (property !== null
+    && !areLooselyEquivalentValues(command, getEffectiveCommandValue(newParent, command), newValue)) {
+        newParent.style[property] = newValue;
+    }
+
+    // "If command is "strikethrough", and new value is "line-through", and the
+    // effective command value of "strikethrough" for new parent is not
+    // "line-through", set the "text-decoration" property of new parent to
+    // "line-through"."
+    if (command == "strikethrough"
+    && newValue == "line-through"
+    && getEffectiveCommandValue(newParent, "strikethrough") != "line-through") {
+        newParent.style.textDecoration = "line-through";
+    }
+
+    // "If command is "underline", and new value is "underline", and the
+    // effective command value of "underline" for new parent is not
+    // "underline", set the "text-decoration" property of new parent to
+    // "underline"."
+    if (command == "underline"
+    && newValue == "underline"
+    && getEffectiveCommandValue(newParent, "underline") != "underline") {
+        newParent.style.textDecoration = "underline";
+    }
+
+    // "Append node to new parent as its last child, preserving ranges."
+    movePreservingRanges(node, newParent, newParent.childNodes.length);
+
+    // "If node is an Element and the effective command value of command for
+    // node is not loosely equivalent to new value:"
+    if (node.nodeType == Node.ELEMENT_NODE
+    && !areEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
+        // "Insert node into the parent of new parent before new parent,
+        // preserving ranges."
+        movePreservingRanges(node, newParent.parentNode, getNodeIndex(newParent));
+
+        // "Remove new parent from its parent."
+        newParent.parentNode.removeChild(newParent);
+
+        // "Let children be all children of node, omitting any that are
+        // Elements whose specified command value for command is neither null
+        // nor equivalent to new value."
+        var children = [];
+        for (var i = 0; i < node.childNodes.length; i++) {
+            if (node.childNodes[i].nodeType == Node.ELEMENT_NODE) {
+                var specifiedValue = getSpecifiedCommandValue(node.childNodes[i], command);
+
+                if (specifiedValue !== null
+                && !areEquivalentValues(command, newValue, specifiedValue)) {
+                    continue;
+                }
+            }
+            children.push(node.childNodes[i]);
+        }
+
+        // "Force the value of each Node in children, with command and new
+        // value as in this invocation of the algorithm."
+        for (var i = 0; i < children.length; i++) {
+            forceValue(children[i], command, newValue);
+        }
+    }
+}
+
+
+//@}
+///// Setting the selection's value /////
+//@{
+
+function setSelectionValue(command, newValue) {
+    // "If there is no formattable node effectively contained in the active
+    // range:"
+    if (!getAllEffectivelyContainedNodes(getActiveRange())
+    .some(isFormattableNode)) {
+        // "If command has inline command activated values, set the state
+        // override to true if new value is among them and false if it's not."
+        if ("inlineCommandActivatedValues" in commands[command]) {
+            setStateOverride(command, commands[command].inlineCommandActivatedValues
+                .indexOf(newValue) != -1);
+        }
+
+        // "If command is "subscript", unset the state override for
+        // "superscript"."
+        if (command == "subscript") {
+            unsetStateOverride("superscript");
+        }
+
+        // "If command is "superscript", unset the state override for
+        // "subscript"."
+        if (command == "superscript") {
+            unsetStateOverride("subscript");
+        }
+
+        // "If new value is null, unset the value override (if any)."
+        if (newValue === null) {
+            unsetValueOverride(command);
+
+        // "Otherwise, if command is "createLink" or it has a value specified,
+        // set the value override to new value."
+        } else if (command == "createlink" || "value" in commands[command]) {
+            setValueOverride(command, newValue);
+        }
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "If the active range's start node is an editable Text node, and its
+    // start offset is neither zero nor its start node's length, call
+    // splitText() on the active range's start node, with argument equal to the
+    // active range's start offset. Then set the active range's start node to
+    // the result, and its start offset to zero."
+    if (isEditable(getActiveRange().startContainer)
+    && getActiveRange().startContainer.nodeType == Node.TEXT_NODE
+    && getActiveRange().startOffset != 0
+    && getActiveRange().startOffset != getNodeLength(getActiveRange().startContainer)) {
+        // Account for browsers not following range mutation rules
+        var newActiveRange = document.createRange();
+        var newNode;
+        if (getActiveRange().startContainer == getActiveRange().endContainer) {
+            var newEndOffset = getActiveRange().endOffset - getActiveRange().startOffset;
+            newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
+            newActiveRange.setEnd(newNode, newEndOffset);
+            getActiveRange().setEnd(newNode, newEndOffset);
+        } else {
+            newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
+        }
+        newActiveRange.setStart(newNode, 0);
+        getSelection().removeAllRanges();
+        getSelection().addRange(newActiveRange);
+
+        getActiveRange().setStart(newNode, 0);
+    }
+
+    // "If the active range's end node is an editable Text node, and its end
+    // offset is neither zero nor its end node's length, call splitText() on
+    // the active range's end node, with argument equal to the active range's
+    // end offset."
+    if (isEditable(getActiveRange().endContainer)
+    && getActiveRange().endContainer.nodeType == Node.TEXT_NODE
+    && getActiveRange().endOffset != 0
+    && getActiveRange().endOffset != getNodeLength(getActiveRange().endContainer)) {
+        // IE seems to mutate the range incorrectly here, so we need correction
+        // here as well.  The active range will be temporarily in orphaned
+        // nodes, so calling getActiveRange() after splitText() but before
+        // fixing the range will throw an exception.
+        var activeRange = getActiveRange();
+        var newStart = [activeRange.startContainer, activeRange.startOffset];
+        var newEnd = [activeRange.endContainer, activeRange.endOffset];
+        activeRange.endContainer.splitText(activeRange.endOffset);
+        activeRange.setStart(newStart[0], newStart[1]);
+        activeRange.setEnd(newEnd[0], newEnd[1]);
+
+        getSelection().removeAllRanges();
+        getSelection().addRange(activeRange);
+    }
+
+    // "Let element list be all editable Elements effectively contained in the
+    // active range.
+    //
+    // "For each element in element list, clear the value of element."
+    getAllEffectivelyContainedNodes(getActiveRange(), function(node) {
+        return isEditable(node) && node.nodeType == Node.ELEMENT_NODE;
+    }).forEach(function(element) {
+        clearValue(element, command);
+    });
+
+    // "Let node list be all editable nodes effectively contained in the active
+    // range.
+    //
+    // "For each node in node list:"
+    getAllEffectivelyContainedNodes(getActiveRange(), isEditable).forEach(function(node) {
+        // "Push down values on node."
+        pushDownValues(node, command, newValue);
+
+        // "If node is an allowed child of span, force the value of node."
+        if (isAllowedChild(node, "span")) {
+            forceValue(node, command, newValue);
+        }
+    });
+}
+
+
+//@}
+///// The backColor command /////
+//@{
+commands.backcolor = {
+    // Copy-pasted, same as hiliteColor
+    action: function(value) {
+        // Action is further copy-pasted, same as foreColor
+
+        // "If value is not a valid CSS color, prepend "#" to it."
+        //
+        // "If value is still not a valid CSS color, or if it is currentColor,
+        // return false."
+        //
+        // Cheap hack for testing, no attempt to be comprehensive.
+        if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
+            value = "#" + value;
+        }
+        if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
+        && !parseSimpleColor(value)
+        && value.toLowerCase() != "transparent") {
+            return false;
+        }
+
+        // "Set the selection's value to value."
+        setSelectionValue("backcolor", value);
+
+        // "Return true."
+        return true;
+    }, standardInlineValueCommand: true, relevantCssProperty: "backgroundColor",
+    equivalentValues: function(val1, val2) {
+        // "Either both strings are valid CSS colors and have the same red,
+        // green, blue, and alpha components, or neither string is a valid CSS
+        // color."
+        return normalizeColor(val1) === normalizeColor(val2);
+    },
+};
+
+//@}
+///// The bold command /////
+//@{
+commands.bold = {
+    action: function() {
+        // "If queryCommandState("bold") returns true, set the selection's
+        // value to "normal". Otherwise set the selection's value to "bold".
+        // Either way, return true."
+        if (myQueryCommandState("bold")) {
+            setSelectionValue("bold", "normal");
+        } else {
+            setSelectionValue("bold", "bold");
+        }
+        return true;
+    }, inlineCommandActivatedValues: ["bold", "600", "700", "800", "900"],
+    relevantCssProperty: "fontWeight",
+    equivalentValues: function(val1, val2) {
+        // "Either the two strings are equal, or one is "bold" and the other is
+        // "700", or one is "normal" and the other is "400"."
+        return val1 == val2
+            || (val1 == "bold" && val2 == "700")
+            || (val1 == "700" && val2 == "bold")
+            || (val1 == "normal" && val2 == "400")
+            || (val1 == "400" && val2 == "normal");
+    },
+};
+
+//@}
+///// The createLink command /////
+//@{
+commands.createlink = {
+    action: function(value) {
+        // "If value is the empty string, return false."
+        if (value === "") {
+            return false;
+        }
+
+        // "For each editable a element that has an href attribute and is an
+        // ancestor of some node effectively contained in the active range, set
+        // that a element's href attribute to value."
+        //
+        // TODO: We don't actually do this in tree order, not that it matters
+        // unless you're spying with mutation events.
+        getAllEffectivelyContainedNodes(getActiveRange()).forEach(function(node) {
+            getAncestors(node).forEach(function(ancestor) {
+                if (isEditable(ancestor)
+                && isHtmlElement(ancestor, "a")
+                && ancestor.hasAttribute("href")) {
+                    ancestor.setAttribute("href", value);
+                }
+            });
+        });
+
+        // "Set the selection's value to value."
+        setSelectionValue("createlink", value);
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The fontName command /////
+//@{
+commands.fontname = {
+    action: function(value) {
+        // "Set the selection's value to value, then return true."
+        setSelectionValue("fontname", value);
+        return true;
+    }, standardInlineValueCommand: true, relevantCssProperty: "fontFamily"
+};
+
+//@}
+///// The fontSize command /////
+//@{
+
+// Helper function for fontSize's action plus queryOutputHelper.  It's just the
+// middle of fontSize's action, ripped out into its own function.  Returns null
+// if the size is invalid.
+function normalizeFontSize(value) {
+    // "Strip leading and trailing whitespace from value."
+    //
+    // Cheap hack, not following the actual algorithm.
+    value = value.trim();
+
+    // "If value is not a valid floating point number, and would not be a valid
+    // floating point number if a single leading "+" character were stripped,
+    // return false."
+    if (!/^[-+]?[0-9]+(\.[0-9]+)?([eE][-+]?[0-9]+)?$/.test(value)) {
+        return null;
+    }
+
+    var mode;
+
+    // "If the first character of value is "+", delete the character and let
+    // mode be "relative-plus"."
+    if (value[0] == "+") {
+        value = value.slice(1);
+        mode = "relative-plus";
+    // "Otherwise, if the first character of value is "-", delete the character
+    // and let mode be "relative-minus"."
+    } else if (value[0] == "-") {
+        value = value.slice(1);
+        mode = "relative-minus";
+    // "Otherwise, let mode be "absolute"."
+    } else {
+        mode = "absolute";
+    }
+
+    // "Apply the rules for parsing non-negative integers to value, and let
+    // number be the result."
+    //
+    // Another cheap hack.
+    var num = parseInt(value);
+
+    // "If mode is "relative-plus", add three to number."
+    if (mode == "relative-plus") {
+        num += 3;
+    }
+
+    // "If mode is "relative-minus", negate number, then add three to it."
+    if (mode == "relative-minus") {
+        num = 3 - num;
+    }
+
+    // "If number is less than one, let number equal 1."
+    if (num < 1) {
+        num = 1;
+    }
+
+    // "If number is greater than seven, let number equal 7."
+    if (num > 7) {
+        num = 7;
+    }
+
+    // "Set value to the string here corresponding to number:" [table omitted]
+    value = {
+        1: "x-small",
+        2: "small",
+        3: "medium",
+        4: "large",
+        5: "x-large",
+        6: "xx-large",
+        7: "xxx-large"
+    }[num];
+
+    return value;
+}
+
+commands.fontsize = {
+    action: function(value) {
+        value = normalizeFontSize(value);
+        if (value === null) {
+            return false;
+        }
+
+        // "Set the selection's value to value."
+        setSelectionValue("fontsize", value);
+
+        // "Return true."
+        return true;
+    }, indeterm: function() {
+        // "True if among formattable nodes that are effectively contained in
+        // the active range, there are two that have distinct effective command
+        // values.  Otherwise false."
+        return getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)
+        .map(function(node) {
+            return getEffectiveCommandValue(node, "fontsize");
+        }).filter(function(value, i, arr) {
+            return arr.slice(0, i).indexOf(value) == -1;
+        }).length >= 2;
+    }, value: function() {
+        // "If the active range is null, return the empty string."
+        if (!getActiveRange()) {
+            return "";
+        }
+
+        // "Let pixel size be the effective command value of the first
+        // formattable node that is effectively contained in the active range,
+        // or if there is no such node, the effective command value of the
+        // active range's start node, in either case interpreted as a number of
+        // pixels."
+        var node = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)[0];
+        if (node === undefined) {
+            node = getActiveRange().startContainer;
+        }
+        var pixelSize = getEffectiveCommandValue(node, "fontsize");
+
+        // "Return the legacy font size for pixel size."
+        return getLegacyFontSize(pixelSize);
+    }, relevantCssProperty: "fontSize"
+};
+
+function getLegacyFontSize(size) {
+    if (getLegacyFontSize.resultCache === undefined) {
+        getLegacyFontSize.resultCache = {};
+    }
+
+    if (getLegacyFontSize.resultCache[size] !== undefined) {
+        return getLegacyFontSize.resultCache[size];
+    }
+
+    // For convenience in other places in my code, I handle all sizes, not just
+    // pixel sizes as the spec says.  This means pixel sizes have to be passed
+    // in suffixed with "px", not as plain numbers.
+    if (normalizeFontSize(size) !== null) {
+        return getLegacyFontSize.resultCache[size] = cssSizeToLegacy(normalizeFontSize(size));
+    }
+
+    if (["x-small", "x-small", "small", "medium", "large", "x-large", "xx-large", "xxx-large"].indexOf(size) == -1
+    && !/^[0-9]+(\.[0-9]+)?(cm|mm|in|pt|pc|px)$/.test(size)) {
+        // There is no sensible legacy size for things like "2em".
+        return getLegacyFontSize.resultCache[size] = null;
+    }
+
+    var font = document.createElement("font");
+    document.body.appendChild(font);
+    if (size == "xxx-large") {
+        font.size = 7;
+    } else {
+        font.style.fontSize = size;
+    }
+    var pixelSize = parseInt(getComputedStyle(font).fontSize);
+    document.body.removeChild(font);
+
+    // "Let returned size be 1."
+    var returnedSize = 1;
+
+    // "While returned size is less than 7:"
+    while (returnedSize < 7) {
+        // "Let lower bound be the resolved value of "font-size" in pixels
+        // of a font element whose size attribute is set to returned size."
+        var font = document.createElement("font");
+        font.size = returnedSize;
+        document.body.appendChild(font);
+        var lowerBound = parseInt(getComputedStyle(font).fontSize);
+
+        // "Let upper bound be the resolved value of "font-size" in pixels
+        // of a font element whose size attribute is set to one plus
+        // returned size."
+        font.size = 1 + returnedSize;
+        var upperBound = parseInt(getComputedStyle(font).fontSize);
+        document.body.removeChild(font);
+
+        // "Let average be the average of upper bound and lower bound."
+        var average = (upperBound + lowerBound)/2;
+
+        // "If pixel size is less than average, return the one-element
+        // string consisting of the digit returned size."
+        if (pixelSize < average) {
+            return getLegacyFontSize.resultCache[size] = String(returnedSize);
+        }
+
+        // "Add one to returned size."
+        returnedSize++;
+    }
+
+    // "Return "7"."
+    return getLegacyFontSize.resultCache[size] = "7";
+}
+
+//@}
+///// The foreColor command /////
+//@{
+commands.forecolor = {
+    action: function(value) {
+        // Copy-pasted, same as backColor and hiliteColor
+
+        // "If value is not a valid CSS color, prepend "#" to it."
+        //
+        // "If value is still not a valid CSS color, or if it is currentColor,
+        // return false."
+        //
+        // Cheap hack for testing, no attempt to be comprehensive.
+        if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
+            value = "#" + value;
+        }
+        if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
+        && !parseSimpleColor(value)
+        && value.toLowerCase() != "transparent") {
+            return false;
+        }
+
+        // "Set the selection's value to value."
+        setSelectionValue("forecolor", value);
+
+        // "Return true."
+        return true;
+    }, standardInlineValueCommand: true, relevantCssProperty: "color",
+    equivalentValues: function(val1, val2) {
+        // "Either both strings are valid CSS colors and have the same red,
+        // green, blue, and alpha components, or neither string is a valid CSS
+        // color."
+        return normalizeColor(val1) === normalizeColor(val2);
+    },
+};
+
+//@}
+///// The hiliteColor command /////
+//@{
+commands.hilitecolor = {
+    // Copy-pasted, same as backColor
+    action: function(value) {
+        // Action is further copy-pasted, same as foreColor
+
+        // "If value is not a valid CSS color, prepend "#" to it."
+        //
+        // "If value is still not a valid CSS color, or if it is currentColor,
+        // return false."
+        //
+        // Cheap hack for testing, no attempt to be comprehensive.
+        if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
+            value = "#" + value;
+        }
+        if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
+        && !parseSimpleColor(value)
+        && value.toLowerCase() != "transparent") {
+            return false;
+        }
+
+        // "Set the selection's value to value."
+        setSelectionValue("hilitecolor", value);
+
+        // "Return true."
+        return true;
+    }, indeterm: function() {
+        // "True if among editable Text nodes that are effectively contained in
+        // the active range, there are two that have distinct effective command
+        // values.  Otherwise false."
+        return getAllEffectivelyContainedNodes(getActiveRange(), function(node) {
+            return isEditable(node) && node.nodeType == Node.TEXT_NODE;
+        }).map(function(node) {
+            return getEffectiveCommandValue(node, "hilitecolor");
+        }).filter(function(value, i, arr) {
+            return arr.slice(0, i).indexOf(value) == -1;
+        }).length >= 2;
+    }, standardInlineValueCommand: true, relevantCssProperty: "backgroundColor",
+    equivalentValues: function(val1, val2) {
+        // "Either both strings are valid CSS colors and have the same red,
+        // green, blue, and alpha components, or neither string is a valid CSS
+        // color."
+        return normalizeColor(val1) === normalizeColor(val2);
+    },
+};
+
+//@}
+///// The italic command /////
+//@{
+commands.italic = {
+    action: function() {
+        // "If queryCommandState("italic") returns true, set the selection's
+        // value to "normal". Otherwise set the selection's value to "italic".
+        // Either way, return true."
+        if (myQueryCommandState("italic")) {
+            setSelectionValue("italic", "normal");
+        } else {
+            setSelectionValue("italic", "italic");
+        }
+        return true;
+    }, inlineCommandActivatedValues: ["italic", "oblique"],
+    relevantCssProperty: "fontStyle"
+};
+
+//@}
+///// The removeFormat command /////
+//@{
+commands.removeformat = {
+    action: function() {
+        // "A removeFormat candidate is an editable HTML element with local
+        // name "abbr", "acronym", "b", "bdi", "bdo", "big", "blink", "cite",
+        // "code", "dfn", "em", "font", "i", "ins", "kbd", "mark", "nobr", "q",
+        // "s", "samp", "small", "span", "strike", "strong", "sub", "sup",
+        // "tt", "u", or "var"."
+        function isRemoveFormatCandidate(node) {
+            return isEditable(node)
+                && isHtmlElement(node, ["abbr", "acronym", "b", "bdi", "bdo",
+                "big", "blink", "cite", "code", "dfn", "em", "font", "i",
+                "ins", "kbd", "mark", "nobr", "q", "s", "samp", "small",
+                "span", "strike", "strong", "sub", "sup", "tt", "u", "var"]);
+        }
+
+        // "Let elements to remove be a list of every removeFormat candidate
+        // effectively contained in the active range."
+        var elementsToRemove = getAllEffectivelyContainedNodes(getActiveRange(), isRemoveFormatCandidate);
+
+        // "For each element in elements to remove:"
+        elementsToRemove.forEach(function(element) {
+            // "While element has children, insert the first child of element
+            // into the parent of element immediately before element,
+            // preserving ranges."
+            while (element.hasChildNodes()) {
+                movePreservingRanges(element.firstChild, element.parentNode, getNodeIndex(element));
+            }
+
+            // "Remove element from its parent."
+            element.parentNode.removeChild(element);
+        });
+
+        // "If the active range's start node is an editable Text node, and its
+        // start offset is neither zero nor its start node's length, call
+        // splitText() on the active range's start node, with argument equal to
+        // the active range's start offset. Then set the active range's start
+        // node to the result, and its start offset to zero."
+        if (isEditable(getActiveRange().startContainer)
+        && getActiveRange().startContainer.nodeType == Node.TEXT_NODE
+        && getActiveRange().startOffset != 0
+        && getActiveRange().startOffset != getNodeLength(getActiveRange().startContainer)) {
+            // Account for browsers not following range mutation rules
+            if (getActiveRange().startContainer == getActiveRange().endContainer) {
+                var newEnd = getActiveRange().endOffset - getActiveRange().startOffset;
+                var newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
+                getActiveRange().setStart(newNode, 0);
+                getActiveRange().setEnd(newNode, newEnd);
+            } else {
+                getActiveRange().setStart(getActiveRange().startContainer.splitText(getActiveRange().startOffset), 0);
+            }
+        }
+
+        // "If the active range's end node is an editable Text node, and its
+        // end offset is neither zero nor its end node's length, call
+        // splitText() on the active range's end node, with argument equal to
+        // the active range's end offset."
+        if (isEditable(getActiveRange().endContainer)
+        && getActiveRange().endContainer.nodeType == Node.TEXT_NODE
+        && getActiveRange().endOffset != 0
+        && getActiveRange().endOffset != getNodeLength(getActiveRange().endContainer)) {
+            // IE seems to mutate the range incorrectly here, so we need
+            // correction here as well.  Have to be careful to set the range to
+            // something not including the text node so that getActiveRange()
+            // doesn't throw an exception due to a temporarily detached
+            // endpoint.
+            var newStart = [getActiveRange().startContainer, getActiveRange().startOffset];
+            var newEnd = [getActiveRange().endContainer, getActiveRange().endOffset];
+            getActiveRange().setEnd(document.documentElement, 0);
+            newEnd[0].splitText(newEnd[1]);
+            getActiveRange().setStart(newStart[0], newStart[1]);
+            getActiveRange().setEnd(newEnd[0], newEnd[1]);
+        }
+
+        // "Let node list consist of all editable nodes effectively contained
+        // in the active range."
+        //
+        // "For each node in node list, while node's parent is a removeFormat
+        // candidate in the same editing host as node, split the parent of the
+        // one-node list consisting of node."
+        getAllEffectivelyContainedNodes(getActiveRange(), isEditable).forEach(function(node) {
+            while (isRemoveFormatCandidate(node.parentNode)
+            && inSameEditingHost(node.parentNode, node)) {
+                splitParent([node]);
+            }
+        });
+
+        // "For each of the entries in the following list, in the given order,
+        // set the selection's value to null, with command as given."
+        [
+            "subscript",
+            "bold",
+            "fontname",
+            "fontsize",
+            "forecolor",
+            "hilitecolor",
+            "italic",
+            "strikethrough",
+            "underline",
+        ].forEach(function(command) {
+            setSelectionValue(command, null);
+        });
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The strikethrough command /////
+//@{
+commands.strikethrough = {
+    action: function() {
+        // "If queryCommandState("strikethrough") returns true, set the
+        // selection's value to null. Otherwise set the selection's value to
+        // "line-through".  Either way, return true."
+        if (myQueryCommandState("strikethrough")) {
+            setSelectionValue("strikethrough", null);
+        } else {
+            setSelectionValue("strikethrough", "line-through");
+        }
+        return true;
+    }, inlineCommandActivatedValues: ["line-through"]
+};
+
+//@}
+///// The subscript command /////
+//@{
+commands.subscript = {
+    action: function() {
+        // "Call queryCommandState("subscript"), and let state be the result."
+        var state = myQueryCommandState("subscript");
+
+        // "Set the selection's value to null."
+        setSelectionValue("subscript", null);
+
+        // "If state is false, set the selection's value to "subscript"."
+        if (!state) {
+            setSelectionValue("subscript", "subscript");
+        }
+
+        // "Return true."
+        return true;
+    }, indeterm: function() {
+        // "True if either among formattable nodes that are effectively
+        // contained in the active range, there is at least one with effective
+        // command value "subscript" and at least one with some other effective
+        // command value; or if there is some formattable node effectively
+        // contained in the active range with effective command value "mixed".
+        // Otherwise false."
+        var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
+        return (nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") == "subscript" })
+            && nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") != "subscript" }))
+            || nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") == "mixed" });
+    }, inlineCommandActivatedValues: ["subscript"],
+};
+
+//@}
+///// The superscript command /////
+//@{
+commands.superscript = {
+    action: function() {
+        // "Call queryCommandState("superscript"), and let state be the
+        // result."
+        var state = myQueryCommandState("superscript");
+
+        // "Set the selection's value to null."
+        setSelectionValue("superscript", null);
+
+        // "If state is false, set the selection's value to "superscript"."
+        if (!state) {
+            setSelectionValue("superscript", "superscript");
+        }
+
+        // "Return true."
+        return true;
+    }, indeterm: function() {
+        // "True if either among formattable nodes that are effectively
+        // contained in the active range, there is at least one with effective
+        // command value "superscript" and at least one with some other
+        // effective command value; or if there is some formattable node
+        // effectively contained in the active range with effective command
+        // value "mixed".  Otherwise false."
+        var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
+        return (nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") == "superscript" })
+            && nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") != "superscript" }))
+            || nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") == "mixed" });
+    }, inlineCommandActivatedValues: ["superscript"],
+};
+
+//@}
+///// The underline command /////
+//@{
+commands.underline = {
+    action: function() {
+        // "If queryCommandState("underline") returns true, set the selection's
+        // value to null. Otherwise set the selection's value to "underline".
+        // Either way, return true."
+        if (myQueryCommandState("underline")) {
+            setSelectionValue("underline", null);
+        } else {
+            setSelectionValue("underline", "underline");
+        }
+        return true;
+    }, inlineCommandActivatedValues: ["underline"]
+};
+
+//@}
+///// The unlink command /////
+//@{
+commands.unlink = {
+    action: function() {
+        // "Let hyperlinks be a list of every a element that has an href
+        // attribute and is contained in the active range or is an ancestor of
+        // one of its boundary points."
+        //
+        // As usual, take care to ensure it's tree order.  The correctness of
+        // the following is left as an exercise for the reader.
+        var range = getActiveRange();
+        var hyperlinks = [];
+        for (
+            var node = range.startContainer;
+            node;
+            node = node.parentNode
+        ) {
+            if (isHtmlElement(node, "A")
+            && node.hasAttribute("href")) {
+                hyperlinks.unshift(node);
+            }
+        }
+        for (
+            var node = range.startContainer;
+            node != nextNodeDescendants(range.endContainer);
+            node = nextNode(node)
+        ) {
+            if (isHtmlElement(node, "A")
+            && node.hasAttribute("href")
+            && (isContained(node, range)
+            || isAncestor(node, range.endContainer)
+            || node == range.endContainer)) {
+                hyperlinks.push(node);
+            }
+        }
+
+        // "Clear the value of each member of hyperlinks."
+        for (var i = 0; i < hyperlinks.length; i++) {
+            clearValue(hyperlinks[i], "unlink");
+        }
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+
+/////////////////////////////////////
+///// Block formatting commands /////
+/////////////////////////////////////
+
+///// Block formatting command definitions /////
+//@{
+
+// "An indentation element is either a blockquote, or a div that has a style
+// attribute that sets "margin" or some subproperty of it."
+function isIndentationElement(node) {
+    if (!isHtmlElement(node)) {
+        return false;
+    }
+
+    if (node.tagName == "BLOCKQUOTE") {
+        return true;
+    }
+
+    if (node.tagName != "DIV") {
+        return false;
+    }
+
+    for (var i = 0; i < node.style.length; i++) {
+        // Approximate check
+        if (/^(-[a-z]+-)?margin/.test(node.style[i])) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+// "A simple indentation element is an indentation element that has no
+// attributes except possibly
+//
+//   * "a style attribute that sets no properties other than "margin",
+//     "border", "padding", or subproperties of those; and/or
+//   * "a dir attribute."
+function isSimpleIndentationElement(node) {
+    if (!isIndentationElement(node)) {
+        return false;
+    }
+
+    for (var i = 0; i < node.attributes.length; i++) {
+        if (!isHtmlNamespace(node.attributes[i].namespaceURI)
+        || ["style", "dir"].indexOf(node.attributes[i].name) == -1) {
+            return false;
+        }
+    }
+
+    for (var i = 0; i < node.style.length; i++) {
+        // This is approximate, but it works well enough for my purposes.
+        if (!/^(-[a-z]+-)?(margin|border|padding)/.test(node.style[i])) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+// "A non-list single-line container is an HTML element with local name
+// "address", "div", "h1", "h2", "h3", "h4", "h5", "h6", "listing", "p", "pre",
+// or "xmp"."
+function isNonListSingleLineContainer(node) {
+    return isHtmlElement(node, ["address", "div", "h1", "h2", "h3", "h4", "h5",
+        "h6", "listing", "p", "pre", "xmp"]);
+}
+
+// "A single-line container is either a non-list single-line container, or an
+// HTML element with local name "li", "dt", or "dd"."
+function isSingleLineContainer(node) {
+    return isNonListSingleLineContainer(node)
+        || isHtmlElement(node, ["li", "dt", "dd"]);
+}
+
+function getBlockNodeOf(node) {
+    // "While node is an inline node, set node to its parent."
+    while (isInlineNode(node)) {
+        node = node.parentNode;
+    }
+
+    // "Return node."
+    return node;
+}
+
+//@}
+///// Assorted block formatting command algorithms /////
+//@{
+
+function fixDisallowedAncestors(node) {
+    // "If node is not editable, abort these steps."
+    if (!isEditable(node)) {
+        return;
+    }
+
+    // "If node is not an allowed child of any of its ancestors in the same
+    // editing host:"
+    if (getAncestors(node).every(function(ancestor) {
+        return !inSameEditingHost(node, ancestor)
+            || !isAllowedChild(node, ancestor)
+    })) {
+        // "If node is a dd or dt, wrap the one-node list consisting of node,
+        // with sibling criteria returning true for any dl with no attributes
+        // and false otherwise, and new parent instructions returning the
+        // result of calling createElement("dl") on the context object. Then
+        // abort these steps."
+        if (isHtmlElement(node, ["dd", "dt"])) {
+            wrap([node],
+                function(sibling) { return isHtmlElement(sibling, "dl") && !sibling.attributes.length },
+                function() { return document.createElement("dl") });
+            return;
+        }
+
+        // "If "p" is not an allowed child of the editing host of node, abort
+        // these steps."
+        if (!isAllowedChild("p", getEditingHostOf(node))) {
+            return;
+        }
+
+        // "If node is not a prohibited paragraph child, abort these steps."
+        if (!isProhibitedParagraphChild(node)) {
+            return;
+        }
+
+        // "Set the tag name of node to the default single-line container name,
+        // and let node be the result."
+        node = setTagName(node, defaultSingleLineContainerName);
+
+        // "Fix disallowed ancestors of node."
+        fixDisallowedAncestors(node);
+
+        // "Let children be node's children."
+        var children = [].slice.call(node.childNodes);
+
+        // "For each child in children, if child is a prohibited paragraph
+        // child:"
+        children.filter(isProhibitedParagraphChild)
+        .forEach(function(child) {
+            // "Record the values of the one-node list consisting of child, and
+            // let values be the result."
+            var values = recordValues([child]);
+
+            // "Split the parent of the one-node list consisting of child."
+            splitParent([child]);
+
+            // "Restore the values from values."
+            restoreValues(values);
+        });
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "Record the values of the one-node list consisting of node, and let
+    // values be the result."
+    var values = recordValues([node]);
+
+    // "While node is not an allowed child of its parent, split the parent of
+    // the one-node list consisting of node."
+    while (!isAllowedChild(node, node.parentNode)) {
+        splitParent([node]);
+    }
+
+    // "Restore the values from values."
+    restoreValues(values);
+}
+
+function normalizeSublists(item) {
+    // "If item is not an li or it is not editable or its parent is not
+    // editable, abort these steps."
+    if (!isHtmlElement(item, "LI")
+    || !isEditable(item)
+    || !isEditable(item.parentNode)) {
+        return;
+    }
+
+    // "Let new item be null."
+    var newItem = null;
+
+    // "While item has an ol or ul child:"
+    while ([].some.call(item.childNodes, function (node) { return isHtmlElement(node, ["OL", "UL"]) })) {
+        // "Let child be the last child of item."
+        var child = item.lastChild;
+
+        // "If child is an ol or ul, or new item is null and child is a Text
+        // node whose data consists of zero of more space characters:"
+        if (isHtmlElement(child, ["OL", "UL"])
+        || (!newItem && child.nodeType == Node.TEXT_NODE && /^[ \t\n\f\r]*$/.test(child.data))) {
+            // "Set new item to null."
+            newItem = null;
+
+            // "Insert child into the parent of item immediately following
+            // item, preserving ranges."
+            movePreservingRanges(child, item.parentNode, 1 + getNodeIndex(item));
+
+        // "Otherwise:"
+        } else {
+            // "If new item is null, let new item be the result of calling
+            // createElement("li") on the ownerDocument of item, then insert
+            // new item into the parent of item immediately after item."
+            if (!newItem) {
+                newItem = item.ownerDocument.createElement("li");
+                item.parentNode.insertBefore(newItem, item.nextSibling);
+            }
+
+            // "Insert child into new item as its first child, preserving
+            // ranges."
+            movePreservingRanges(child, newItem, 0);
+        }
+    }
+}
+
+function getSelectionListState() {
+    // "If the active range is null, return "none"."
+    if (!getActiveRange()) {
+        return "none";
+    }
+
+    // "Block-extend the active range, and let new range be the result."
+    var newRange = blockExtend(getActiveRange());
+
+    // "Let node list be a list of nodes, initially empty."
+    //
+    // "For each node contained in new range, append node to node list if the
+    // last member of node list (if any) is not an ancestor of node; node is
+    // editable; node is not an indentation element; and node is either an ol
+    // or ul, or the child of an ol or ul, or an allowed child of "li"."
+    var nodeList = getContainedNodes(newRange, function(node) {
+        return isEditable(node)
+            && !isIndentationElement(node)
+            && (isHtmlElement(node, ["ol", "ul"])
+            || isHtmlElement(node.parentNode, ["ol", "ul"])
+            || isAllowedChild(node, "li"));
+    });
+
+    // "If node list is empty, return "none"."
+    if (!nodeList.length) {
+        return "none";
+    }
+
+    // "If every member of node list is either an ol or the child of an ol or
+    // the child of an li child of an ol, and none is a ul or an ancestor of a
+    // ul, return "ol"."
+    if (nodeList.every(function(node) {
+        return isHtmlElement(node, "ol")
+            || isHtmlElement(node.parentNode, "ol")
+            || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ol"));
+    })
+    && !nodeList.some(function(node) { return isHtmlElement(node, "ul") || ("querySelector" in node && node.querySelector("ul")) })) {
+        return "ol";
+    }
+
+    // "If every member of node list is either a ul or the child of a ul or the
+    // child of an li child of a ul, and none is an ol or an ancestor of an ol,
+    // return "ul"."
+    if (nodeList.every(function(node) {
+        return isHtmlElement(node, "ul")
+            || isHtmlElement(node.parentNode, "ul")
+            || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ul"));
+    })
+    && !nodeList.some(function(node) { return isHtmlElement(node, "ol") || ("querySelector" in node && node.querySelector("ol")) })) {
+        return "ul";
+    }
+
+    var hasOl = nodeList.some(function(node) {
+        return isHtmlElement(node, "ol")
+            || isHtmlElement(node.parentNode, "ol")
+            || ("querySelector" in node && node.querySelector("ol"))
+            || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ol"));
+    });
+    var hasUl = nodeList.some(function(node) {
+        return isHtmlElement(node, "ul")
+            || isHtmlElement(node.parentNode, "ul")
+            || ("querySelector" in node && node.querySelector("ul"))
+            || (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ul"));
+    });
+    // "If some member of node list is either an ol or the child or ancestor of
+    // an ol or the child of an li child of an ol, and some member of node list
+    // is either a ul or the child or ancestor of a ul or the child of an li
+    // child of a ul, return "mixed"."
+    if (hasOl && hasUl) {
+        return "mixed";
+    }
+
+    // "If some member of node list is either an ol or the child or ancestor of
+    // an ol or the child of an li child of an ol, return "mixed ol"."
+    if (hasOl) {
+        return "mixed ol";
+    }
+
+    // "If some member of node list is either a ul or the child or ancestor of
+    // a ul or the child of an li child of a ul, return "mixed ul"."
+    if (hasUl) {
+        return "mixed ul";
+    }
+
+    // "Return "none"."
+    return "none";
+}
+
+function getAlignmentValue(node) {
+    // "While node is neither null nor an Element, or it is an Element but its
+    // "display" property has resolved value "inline" or "none", set node to
+    // its parent."
+    while ((node && node.nodeType != Node.ELEMENT_NODE)
+    || (node.nodeType == Node.ELEMENT_NODE
+    && ["inline", "none"].indexOf(getComputedStyle(node).display) != -1)) {
+        node = node.parentNode;
+    }
+
+    // "If node is not an Element, return "left"."
+    if (!node || node.nodeType != Node.ELEMENT_NODE) {
+        return "left";
+    }
+
+    var resolvedValue = getComputedStyle(node).textAlign
+        // Hack around browser non-standardness
+        .replace(/^-(moz|webkit)-/, "")
+        .replace(/^auto$/, "start");
+
+    // "If node's "text-align" property has resolved value "start", return
+    // "left" if the directionality of node is "ltr", "right" if it is "rtl"."
+    if (resolvedValue == "start") {
+        return getDirectionality(node) == "ltr" ? "left" : "right";
+    }
+
+    // "If node's "text-align" property has resolved value "end", return
+    // "right" if the directionality of node is "ltr", "left" if it is "rtl"."
+    if (resolvedValue == "end") {
+        return getDirectionality(node) == "ltr" ? "right" : "left";
+    }
+
+    // "If node's "text-align" property has resolved value "center", "justify",
+    // "left", or "right", return that value."
+    if (["center", "justify", "left", "right"].indexOf(resolvedValue) != -1) {
+        return resolvedValue;
+    }
+
+    // "Return "left"."
+    return "left";
+}
+
+function getNextEquivalentPoint(node, offset) {
+    // "If node's length is zero, return null."
+    if (getNodeLength(node) == 0) {
+        return null;
+    }
+
+    // "If offset is node's length, and node's parent is not null, and node is
+    // an inline node, return (node's parent, 1 + node's index)."
+    if (offset == getNodeLength(node)
+    && node.parentNode
+    && isInlineNode(node)) {
+        return [node.parentNode, 1 + getNodeIndex(node)];
+    }
+
+    // "If node has a child with index offset, and that child's length is not
+    // zero, and that child is an inline node, return (that child, 0)."
+    if (0 <= offset
+    && offset < node.childNodes.length
+    && getNodeLength(node.childNodes[offset]) != 0
+    && isInlineNode(node.childNodes[offset])) {
+        return [node.childNodes[offset], 0];
+    }
+
+    // "Return null."
+    return null;
+}
+
+function getPreviousEquivalentPoint(node, offset) {
+    // "If node's length is zero, return null."
+    if (getNodeLength(node) == 0) {
+        return null;
+    }
+
+    // "If offset is 0, and node's parent is not null, and node is an inline
+    // node, return (node's parent, node's index)."
+    if (offset == 0
+    && node.parentNode
+    && isInlineNode(node)) {
+        return [node.parentNode, getNodeIndex(node)];
+    }
+
+    // "If node has a child with index offset − 1, and that child's length is
+    // not zero, and that child is an inline node, return (that child, that
+    // child's length)."
+    if (0 <= offset - 1
+    && offset - 1 < node.childNodes.length
+    && getNodeLength(node.childNodes[offset - 1]) != 0
+    && isInlineNode(node.childNodes[offset - 1])) {
+        return [node.childNodes[offset - 1], getNodeLength(node.childNodes[offset - 1])];
+    }
+
+    // "Return null."
+    return null;
+}
+
+function getFirstEquivalentPoint(node, offset) {
+    // "While (node, offset)'s previous equivalent point is not null, set
+    // (node, offset) to its previous equivalent point."
+    var prev;
+    while (prev = getPreviousEquivalentPoint(node, offset)) {
+        node = prev[0];
+        offset = prev[1];
+    }
+
+    // "Return (node, offset)."
+    return [node, offset];
+}
+
+function getLastEquivalentPoint(node, offset) {
+    // "While (node, offset)'s next equivalent point is not null, set (node,
+    // offset) to its next equivalent point."
+    var next;
+    while (next = getNextEquivalentPoint(node, offset)) {
+        node = next[0];
+        offset = next[1];
+    }
+
+    // "Return (node, offset)."
+    return [node, offset];
+}
+
+//@}
+///// Block-extending a range /////
+//@{
+
+// "A boundary point (node, offset) is a block start point if either node's
+// parent is null and offset is zero; or node has a child with index offset −
+// 1, and that child is either a visible block node or a visible br."
+function isBlockStartPoint(node, offset) {
+    return (!node.parentNode && offset == 0)
+        || (0 <= offset - 1
+        && offset - 1 < node.childNodes.length
+        && isVisible(node.childNodes[offset - 1])
+        && (isBlockNode(node.childNodes[offset - 1])
+        || isHtmlElement(node.childNodes[offset - 1], "br")));
+}
+
+// "A boundary point (node, offset) is a block end point if either node's
+// parent is null and offset is node's length; or node has a child with index
+// offset, and that child is a visible block node."
+function isBlockEndPoint(node, offset) {
+    return (!node.parentNode && offset == getNodeLength(node))
+        || (offset < node.childNodes.length
+        && isVisible(node.childNodes[offset])
+        && isBlockNode(node.childNodes[offset]));
+}
+
+// "A boundary point is a block boundary point if it is either a block start
+// point or a block end point."
+function isBlockBoundaryPoint(node, offset) {
+    return isBlockStartPoint(node, offset)
+        || isBlockEndPoint(node, offset);
+}
+
+function blockExtend(range) {
+    // "Let start node, start offset, end node, and end offset be the start
+    // and end nodes and offsets of the range."
+    var startNode = range.startContainer;
+    var startOffset = range.startOffset;
+    var endNode = range.endContainer;
+    var endOffset = range.endOffset;
+
+    // "If some ancestor container of start node is an li, set start offset to
+    // the index of the last such li in tree order, and set start node to that
+    // li's parent."
+    var liAncestors = getAncestors(startNode).concat(startNode)
+        .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })
+        .slice(-1);
+    if (liAncestors.length) {
+        startOffset = getNodeIndex(liAncestors[0]);
+        startNode = liAncestors[0].parentNode;
+    }
+
+    // "If (start node, start offset) is not a block start point, repeat the
+    // following steps:"
+    if (!isBlockStartPoint(startNode, startOffset)) do {
+        // "If start offset is zero, set it to start node's index, then set
+        // start node to its parent."
+        if (startOffset == 0) {
+            startOffset = getNodeIndex(startNode);
+            startNode = startNode.parentNode;
+
+        // "Otherwise, subtract one from start offset."
+        } else {
+            startOffset--;
+        }
+
+        // "If (start node, start offset) is a block boundary point, break from
+        // this loop."
+    } while (!isBlockBoundaryPoint(startNode, startOffset));
+
+    // "While start offset is zero and start node's parent is not null, set
+    // start offset to start node's index, then set start node to its parent."
+    while (startOffset == 0
+    && startNode.parentNode) {
+        startOffset = getNodeIndex(startNode);
+        startNode = startNode.parentNode;
+    }
+
+    // "If some ancestor container of end node is an li, set end offset to one
+    // plus the index of the last such li in tree order, and set end node to
+    // that li's parent."
+    var liAncestors = getAncestors(endNode).concat(endNode)
+        .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })
+        .slice(-1);
+    if (liAncestors.length) {
+        endOffset = 1 + getNodeIndex(liAncestors[0]);
+        endNode = liAncestors[0].parentNode;
+    }
+
+    // "If (end node, end offset) is not a block end point, repeat the
+    // following steps:"
+    if (!isBlockEndPoint(endNode, endOffset)) do {
+        // "If end offset is end node's length, set it to one plus end node's
+        // index, then set end node to its parent."
+        if (endOffset == getNodeLength(endNode)) {
+            endOffset = 1 + getNodeIndex(endNode);
+            endNode = endNode.parentNode;
+
+        // "Otherwise, add one to end offset.
+        } else {
+            endOffset++;
+        }
+
+        // "If (end node, end offset) is a block boundary point, break from
+        // this loop."
+    } while (!isBlockBoundaryPoint(endNode, endOffset));
+
+    // "While end offset is end node's length and end node's parent is not
+    // null, set end offset to one plus end node's index, then set end node to
+    // its parent."
+    while (endOffset == getNodeLength(endNode)
+    && endNode.parentNode) {
+        endOffset = 1 + getNodeIndex(endNode);
+        endNode = endNode.parentNode;
+    }
+
+    // "Let new range be a new range whose start and end nodes and offsets
+    // are start node, start offset, end node, and end offset."
+    var newRange = startNode.ownerDocument.createRange();
+    newRange.setStart(startNode, startOffset);
+    newRange.setEnd(endNode, endOffset);
+
+    // "Return new range."
+    return newRange;
+}
+
+function followsLineBreak(node) {
+    // "Let offset be zero."
+    var offset = 0;
+
+    // "While (node, offset) is not a block boundary point:"
+    while (!isBlockBoundaryPoint(node, offset)) {
+        // "If node has a visible child with index offset minus one, return
+        // false."
+        if (0 <= offset - 1
+        && offset - 1 < node.childNodes.length
+        && isVisible(node.childNodes[offset - 1])) {
+            return false;
+        }
+
+        // "If offset is zero or node has no children, set offset to node's
+        // index, then set node to its parent."
+        if (offset == 0
+        || !node.hasChildNodes()) {
+            offset = getNodeIndex(node);
+            node = node.parentNode;
+
+        // "Otherwise, set node to its child with index offset minus one, then
+        // set offset to node's length."
+        } else {
+            node = node.childNodes[offset - 1];
+            offset = getNodeLength(node);
+        }
+    }
+
+    // "Return true."
+    return true;
+}
+
+function precedesLineBreak(node) {
+    // "Let offset be node's length."
+    var offset = getNodeLength(node);
+
+    // "While (node, offset) is not a block boundary point:"
+    while (!isBlockBoundaryPoint(node, offset)) {
+        // "If node has a visible child with index offset, return false."
+        if (offset < node.childNodes.length
+        && isVisible(node.childNodes[offset])) {
+            return false;
+        }
+
+        // "If offset is node's length or node has no children, set offset to
+        // one plus node's index, then set node to its parent."
+        if (offset == getNodeLength(node)
+        || !node.hasChildNodes()) {
+            offset = 1 + getNodeIndex(node);
+            node = node.parentNode;
+
+        // "Otherwise, set node to its child with index offset and set offset
+        // to zero."
+        } else {
+            node = node.childNodes[offset];
+            offset = 0;
+        }
+    }
+
+    // "Return true."
+    return true;
+}
+
+//@}
+///// Recording and restoring overrides /////
+//@{
+
+function recordCurrentOverrides() {
+    // "Let overrides be a list of (string, string or boolean) ordered pairs,
+    // initially empty."
+    var overrides = [];
+
+    // "If there is a value override for "createLink", add ("createLink", value
+    // override for "createLink") to overrides."
+    if (getValueOverride("createlink") !== undefined) {
+        overrides.push(["createlink", getValueOverride("createlink")]);
+    }
+
+    // "For each command in the list "bold", "italic", "strikethrough",
+    // "subscript", "superscript", "underline", in order: if there is a state
+    // override for command, add (command, command's state override) to
+    // overrides."
+    ["bold", "italic", "strikethrough", "subscript", "superscript",
+    "underline"].forEach(function(command) {
+        if (getStateOverride(command) !== undefined) {
+            overrides.push([command, getStateOverride(command)]);
+        }
+    });
+
+    // "For each command in the list "fontName", "fontSize", "foreColor",
+    // "hiliteColor", in order: if there is a value override for command, add
+    // (command, command's value override) to overrides."
+    ["fontname", "fontsize", "forecolor",
+    "hilitecolor"].forEach(function(command) {
+        if (getValueOverride(command) !== undefined) {
+            overrides.push([command, getValueOverride(command)]);
+        }
+    });
+
+    // "Return overrides."
+    return overrides;
+}
+
+function recordCurrentStatesAndValues() {
+    // "Let overrides be a list of (string, string or boolean) ordered pairs,
+    // initially empty."
+    var overrides = [];
+
+    // "Let node be the first formattable node effectively contained in the
+    // active range, or null if there is none."
+    var node = getAllEffectivelyContainedNodes(getActiveRange())
+        .filter(isFormattableNode)[0];
+
+    // "If node is null, return overrides."
+    if (!node) {
+        return overrides;
+    }
+
+    // "Add ("createLink", node's effective command value for "createLink") to
+    // overrides."
+    overrides.push(["createlink", getEffectiveCommandValue(node, "createlink")]);
+
+    // "For each command in the list "bold", "italic", "strikethrough",
+    // "subscript", "superscript", "underline", in order: if node's effective
+    // command value for command is one of its inline command activated values,
+    // add (command, true) to overrides, and otherwise add (command, false) to
+    // overrides."
+    ["bold", "italic", "strikethrough", "subscript", "superscript",
+    "underline"].forEach(function(command) {
+        if (commands[command].inlineCommandActivatedValues
+        .indexOf(getEffectiveCommandValue(node, command)) != -1) {
+            overrides.push([command, true]);
+        } else {
+            overrides.push([command, false]);
+        }
+    });
+
+    // "For each command in the list "fontName", "foreColor", "hiliteColor", in
+    // order: add (command, command's value) to overrides."
+    ["fontname", "fontsize", "forecolor", "hilitecolor"].forEach(function(command) {
+        overrides.push([command, commands[command].value()]);
+    });
+
+    // "Add ("fontSize", node's effective command value for "fontSize") to
+    // overrides."
+    overrides.push(["fontsize", getEffectiveCommandValue(node, "fontsize")]);
+
+    // "Return overrides."
+    return overrides;
+}
+
+function restoreStatesAndValues(overrides) {
+    // "Let node be the first formattable node effectively contained in the
+    // active range, or null if there is none."
+    var node = getAllEffectivelyContainedNodes(getActiveRange())
+        .filter(isFormattableNode)[0];
+
+    // "If node is not null, then for each (command, override) pair in
+    // overrides, in order:"
+    if (node) {
+        for (var i = 0; i < overrides.length; i++) {
+            var command = overrides[i][0];
+            var override = overrides[i][1];
+
+            // "If override is a boolean, and queryCommandState(command)
+            // returns something different from override, take the action for
+            // command, with value equal to the empty string."
+            if (typeof override == "boolean"
+            && myQueryCommandState(command) != override) {
+                commands[command].action("");
+
+            // "Otherwise, if override is a string, and command is neither
+            // "createLink" nor "fontSize", and queryCommandValue(command)
+            // returns something not equivalent to override, take the action
+            // for command, with value equal to override."
+            } else if (typeof override == "string"
+            && command != "createlink"
+            && command != "fontsize"
+            && !areEquivalentValues(command, myQueryCommandValue(command), override)) {
+                commands[command].action(override);
+
+            // "Otherwise, if override is a string; and command is
+            // "createLink"; and either there is a value override for
+            // "createLink" that is not equal to override, or there is no value
+            // override for "createLink" and node's effective command value for
+            // "createLink" is not equal to override: take the action for
+            // "createLink", with value equal to override."
+            } else if (typeof override == "string"
+            && command == "createlink"
+            && (
+                (
+                    getValueOverride("createlink") !== undefined
+                    && getValueOverride("createlink") !== override
+                ) || (
+                    getValueOverride("createlink") === undefined
+                    && getEffectiveCommandValue(node, "createlink") !== override
+                )
+            )) {
+                commands.createlink.action(override);
+
+            // "Otherwise, if override is a string; and command is "fontSize";
+            // and either there is a value override for "fontSize" that is not
+            // equal to override, or there is no value override for "fontSize"
+            // and node's effective command value for "fontSize" is not loosely
+            // equivalent to override:"
+            } else if (typeof override == "string"
+            && command == "fontsize"
+            && (
+                (
+                    getValueOverride("fontsize") !== undefined
+                    && getValueOverride("fontsize") !== override
+                ) || (
+                    getValueOverride("fontsize") === undefined
+                    && !areLooselyEquivalentValues(command, getEffectiveCommandValue(node, "fontsize"), override)
+                )
+            )) {
+                // "Convert override to an integer number of pixels, and set
+                // override to the legacy font size for the result."
+                override = getLegacyFontSize(override);
+
+                // "Take the action for "fontSize", with value equal to
+                // override."
+                commands.fontsize.action(override);
+
+            // "Otherwise, continue this loop from the beginning."
+            } else {
+                continue;
+            }
+
+            // "Set node to the first formattable node effectively contained in
+            // the active range, if there is one."
+            node = getAllEffectivelyContainedNodes(getActiveRange())
+                .filter(isFormattableNode)[0]
+                || node;
+        }
+
+    // "Otherwise, for each (command, override) pair in overrides, in order:"
+    } else {
+        for (var i = 0; i < overrides.length; i++) {
+            var command = overrides[i][0];
+            var override = overrides[i][1];
+
+            // "If override is a boolean, set the state override for command to
+            // override."
+            if (typeof override == "boolean") {
+                setStateOverride(command, override);
+            }
+
+            // "If override is a string, set the value override for command to
+            // override."
+            if (typeof override == "string") {
+                setValueOverride(command, override);
+            }
+        }
+    }
+}
+
+//@}
+///// Deleting the selection /////
+//@{
+
+// The flags argument is a dictionary that can have blockMerging,
+// stripWrappers, and/or direction as keys.
+function deleteSelection(flags) {
+    if (flags === undefined) {
+        flags = {};
+    }
+
+    var blockMerging = "blockMerging" in flags ? Boolean(flags.blockMerging) : true;
+    var stripWrappers = "stripWrappers" in flags ? Boolean(flags.stripWrappers) : true;
+    var direction = "direction" in flags ? flags.direction : "forward";
+
+    // "If the active range is null, abort these steps and do nothing."
+    if (!getActiveRange()) {
+        return;
+    }
+
+    // "Canonicalize whitespace at the active range's start."
+    canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
+
+    // "Canonicalize whitespace at the active range's end."
+    canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset);
+
+    // "Let (start node, start offset) be the last equivalent point for the
+    // active range's start."
+    var start = getLastEquivalentPoint(getActiveRange().startContainer, getActiveRange().startOffset);
+    var startNode = start[0];
+    var startOffset = start[1];
+
+    // "Let (end node, end offset) be the first equivalent point for the active
+    // range's end."
+    var end = getFirstEquivalentPoint(getActiveRange().endContainer, getActiveRange().endOffset);
+    var endNode = end[0];
+    var endOffset = end[1];
+
+    // "If (end node, end offset) is not after (start node, start offset):"
+    if (getPosition(endNode, endOffset, startNode, startOffset) !== "after") {
+        // "If direction is "forward", call collapseToStart() on the context
+        // object's Selection."
+        //
+        // Here and in a few other places, we check rangeCount to work around a
+        // WebKit bug: it will sometimes incorrectly remove ranges from the
+        // selection if nodes are removed, so collapseToStart() will throw.
+        // This will break everything if we're using an actual selection, but
+        // if getActiveRange() is really just returning globalRange and that's
+        // all we care about, it will work fine.  I only add the extra check
+        // for errors I actually hit in testing.
+        if (direction == "forward") {
+            if (getSelection().rangeCount) {
+                getSelection().collapseToStart();
+            }
+            getActiveRange().collapse(true);
+
+        // "Otherwise, call collapseToEnd() on the context object's Selection."
+        } else {
+            getSelection().collapseToEnd();
+            getActiveRange().collapse(false);
+        }
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "If start node is a Text node and start offset is 0, set start offset to
+    // the index of start node, then set start node to its parent."
+    if (startNode.nodeType == Node.TEXT_NODE
+    && startOffset == 0) {
+        startOffset = getNodeIndex(startNode);
+        startNode = startNode.parentNode;
+    }
+
+    // "If end node is a Text node and end offset is its length, set end offset
+    // to one plus the index of end node, then set end node to its parent."
+    if (endNode.nodeType == Node.TEXT_NODE
+    && endOffset == getNodeLength(endNode)) {
+        endOffset = 1 + getNodeIndex(endNode);
+        endNode = endNode.parentNode;
+    }
+
+    // "Call collapse(start node, start offset) on the context object's
+    // Selection."
+    getSelection().collapse(startNode, startOffset);
+    getActiveRange().setStart(startNode, startOffset);
+
+    // "Call extend(end node, end offset) on the context object's Selection."
+    getSelection().extend(endNode, endOffset);
+    getActiveRange().setEnd(endNode, endOffset);
+
+    // "Let start block be the active range's start node."
+    var startBlock = getActiveRange().startContainer;
+
+    // "While start block's parent is in the same editing host and start block
+    // is an inline node, set start block to its parent."
+    while (inSameEditingHost(startBlock, startBlock.parentNode)
+    && isInlineNode(startBlock)) {
+        startBlock = startBlock.parentNode;
+    }
+
+    // "If start block is neither a block node nor an editing host, or "span"
+    // is not an allowed child of start block, or start block is a td or th,
+    // set start block to null."
+    if ((!isBlockNode(startBlock) && !isEditingHost(startBlock))
+    || !isAllowedChild("span", startBlock)
+    || isHtmlElement(startBlock, ["td", "th"])) {
+        startBlock = null;
+    }
+
+    // "Let end block be the active range's end node."
+    var endBlock = getActiveRange().endContainer;
+
+    // "While end block's parent is in the same editing host and end block is
+    // an inline node, set end block to its parent."
+    while (inSameEditingHost(endBlock, endBlock.parentNode)
+    && isInlineNode(endBlock)) {
+        endBlock = endBlock.parentNode;
+    }
+
+    // "If end block is neither a block node nor an editing host, or "span" is
+    // not an allowed child of end block, or end block is a td or th, set end
+    // block to null."
+    if ((!isBlockNode(endBlock) && !isEditingHost(endBlock))
+    || !isAllowedChild("span", endBlock)
+    || isHtmlElement(endBlock, ["td", "th"])) {
+        endBlock = null;
+    }
+
+    // "Record current states and values, and let overrides be the result."
+    var overrides = recordCurrentStatesAndValues();
+
+    // "If start node and end node are the same, and start node is an editable
+    // Text node:"
+    if (startNode == endNode
+    && isEditable(startNode)
+    && startNode.nodeType == Node.TEXT_NODE) {
+        // "Call deleteData(start offset, end offset − start offset) on start
+        // node."
+        startNode.deleteData(startOffset, endOffset - startOffset);
+
+        // "Canonicalize whitespace at (start node, start offset), with fix
+        // collapsed space false."
+        canonicalizeWhitespace(startNode, startOffset, false);
+
+        // "If direction is "forward", call collapseToStart() on the context
+        // object's Selection."
+        if (direction == "forward") {
+            if (getSelection().rangeCount) {
+                getSelection().collapseToStart();
+            }
+            getActiveRange().collapse(true);
+
+        // "Otherwise, call collapseToEnd() on the context object's Selection."
+        } else {
+            getSelection().collapseToEnd();
+            getActiveRange().collapse(false);
+        }
+
+        // "Restore states and values from overrides."
+        restoreStatesAndValues(overrides);
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "If start node is an editable Text node, call deleteData() on it, with
+    // start offset as the first argument and (length of start node − start
+    // offset) as the second argument."
+    if (isEditable(startNode)
+    && startNode.nodeType == Node.TEXT_NODE) {
+        startNode.deleteData(startOffset, getNodeLength(startNode) - startOffset);
+    }
+
+    // "Let node list be a list of nodes, initially empty."
+    //
+    // "For each node contained in the active range, append node to node list
+    // if the last member of node list (if any) is not an ancestor of node;
+    // node is editable; and node is not a thead, tbody, tfoot, tr, th, or td."
+    var nodeList = getContainedNodes(getActiveRange(),
+        function(node) {
+            return isEditable(node)
+                && !isHtmlElement(node, ["thead", "tbody", "tfoot", "tr", "th", "td"]);
+        }
+    );
+
+    // "For each node in node list:"
+    for (var i = 0; i < nodeList.length; i++) {
+        var node = nodeList[i];
+
+        // "Let parent be the parent of node."
+        var parent_ = node.parentNode;
+
+        // "Remove node from parent."
+        parent_.removeChild(node);
+
+        // "If the block node of parent has no visible children, and parent is
+        // editable or an editing host, call createElement("br") on the context
+        // object and append the result as the last child of parent."
+        if (![].some.call(getBlockNodeOf(parent_).childNodes, isVisible)
+        && (isEditable(parent_) || isEditingHost(parent_))) {
+            parent_.appendChild(document.createElement("br"));
+        }
+
+        // "If strip wrappers is true or parent is not an ancestor container of
+        // start node, while parent is an editable inline node with length 0,
+        // let grandparent be the parent of parent, then remove parent from
+        // grandparent, then set parent to grandparent."
+        if (stripWrappers
+        || (!isAncestor(parent_, startNode) && parent_ != startNode)) {
+            while (isEditable(parent_)
+            && isInlineNode(parent_)
+            && getNodeLength(parent_) == 0) {
+                var grandparent = parent_.parentNode;
+                grandparent.removeChild(parent_);
+                parent_ = grandparent;
+            }
+        }
+    }
+
+    // "If end node is an editable Text node, call deleteData(0, end offset) on
+    // it."
+    if (isEditable(endNode)
+    && endNode.nodeType == Node.TEXT_NODE) {
+        endNode.deleteData(0, endOffset);
+    }
+
+    // "Canonicalize whitespace at the active range's start, with fix collapsed
+    // space false."
+    canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);
+
+    // "Canonicalize whitespace at the active range's end, with fix collapsed
+    // space false."
+    canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);
+
+    // "If block merging is false, or start block or end block is null, or
+    // start block is not in the same editing host as end block, or start block
+    // and end block are the same:"
+    if (!blockMerging
+    || !startBlock
+    || !endBlock
+    || !inSameEditingHost(startBlock, endBlock)
+    || startBlock == endBlock) {
+        // "If direction is "forward", call collapseToStart() on the context
+        // object's Selection."
+        if (direction == "forward") {
+            if (getSelection().rangeCount) {
+                getSelection().collapseToStart();
+            }
+            getActiveRange().collapse(true);
+
+        // "Otherwise, call collapseToEnd() on the context object's Selection."
+        } else {
+            if (getSelection().rangeCount) {
+                getSelection().collapseToEnd();
+            }
+            getActiveRange().collapse(false);
+        }
+
+        // "Restore states and values from overrides."
+        restoreStatesAndValues(overrides);
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "If start block has one child, which is a collapsed block prop, remove
+    // its child from it."
+    if (startBlock.children.length == 1
+    && isCollapsedBlockProp(startBlock.firstChild)) {
+        startBlock.removeChild(startBlock.firstChild);
+    }
+
+    // "If start block is an ancestor of end block:"
+    if (isAncestor(startBlock, endBlock)) {
+        // "Let reference node be end block."
+        var referenceNode = endBlock;
+
+        // "While reference node is not a child of start block, set reference
+        // node to its parent."
+        while (referenceNode.parentNode != startBlock) {
+            referenceNode = referenceNode.parentNode;
+        }
+
+        // "Call collapse() on the context object's Selection, with first
+        // argument start block and second argument the index of reference
+        // node."
+        getSelection().collapse(startBlock, getNodeIndex(referenceNode));
+        getActiveRange().setStart(startBlock, getNodeIndex(referenceNode));
+        getActiveRange().collapse(true);
+
+        // "If end block has no children:"
+        if (!endBlock.hasChildNodes()) {
+            // "While end block is editable and is the only child of its parent
+            // and is not a child of start block, let parent equal end block,
+            // then remove end block from parent, then set end block to
+            // parent."
+            while (isEditable(endBlock)
+            && endBlock.parentNode.childNodes.length == 1
+            && endBlock.parentNode != startBlock) {
+                var parent_ = endBlock;
+                parent_.removeChild(endBlock);
+                endBlock = parent_;
+            }
+
+            // "If end block is editable and is not an inline node, and its
+            // previousSibling and nextSibling are both inline nodes, call
+            // createElement("br") on the context object and insert it into end
+            // block's parent immediately after end block."
+            if (isEditable(endBlock)
+            && !isInlineNode(endBlock)
+            && isInlineNode(endBlock.previousSibling)
+            && isInlineNode(endBlock.nextSibling)) {
+                endBlock.parentNode.insertBefore(document.createElement("br"), endBlock.nextSibling);
+            }
+
+            // "If end block is editable, remove it from its parent."
+            if (isEditable(endBlock)) {
+                endBlock.parentNode.removeChild(endBlock);
+            }
+
+            // "Restore states and values from overrides."
+            restoreStatesAndValues(overrides);
+
+            // "Abort these steps."
+            return;
+        }
+
+        // "If end block's firstChild is not an inline node, restore states and
+        // values from overrides, then abort these steps."
+        if (!isInlineNode(endBlock.firstChild)) {
+            restoreStatesAndValues(overrides);
+            return;
+        }
+
+        // "Let children be a list of nodes, initially empty."
+        var children = [];
+
+        // "Append the first child of end block to children."
+        children.push(endBlock.firstChild);
+
+        // "While children's last member is not a br, and children's last
+        // member's nextSibling is an inline node, append children's last
+        // member's nextSibling to children."
+        while (!isHtmlElement(children[children.length - 1], "br")
+        && isInlineNode(children[children.length - 1].nextSibling)) {
+            children.push(children[children.length - 1].nextSibling);
+        }
+
+        // "Record the values of children, and let values be the result."
+        var values = recordValues(children);
+
+        // "While children's first member's parent is not start block, split
+        // the parent of children."
+        while (children[0].parentNode != startBlock) {
+            splitParent(children);
+        }
+
+        // "If children's first member's previousSibling is an editable br,
+        // remove that br from its parent."
+        if (isEditable(children[0].previousSibling)
+        && isHtmlElement(children[0].previousSibling, "br")) {
+            children[0].parentNode.removeChild(children[0].previousSibling);
+        }
+
+    // "Otherwise, if start block is a descendant of end block:"
+    } else if (isDescendant(startBlock, endBlock)) {
+        // "Call collapse() on the context object's Selection, with first
+        // argument start block and second argument start block's length."
+        getSelection().collapse(startBlock, getNodeLength(startBlock));
+        getActiveRange().setStart(startBlock, getNodeLength(startBlock));
+        getActiveRange().collapse(true);
+
+        // "Let reference node be start block."
+        var referenceNode = startBlock;
+
+        // "While reference node is not a child of end block, set reference
+        // node to its parent."
+        while (referenceNode.parentNode != endBlock) {
+            referenceNode = referenceNode.parentNode;
+        }
+
+        // "If reference node's nextSibling is an inline node and start block's
+        // lastChild is a br, remove start block's lastChild from it."
+        if (isInlineNode(referenceNode.nextSibling)
+        && isHtmlElement(startBlock.lastChild, "br")) {
+            startBlock.removeChild(startBlock.lastChild);
+        }
+
+        // "Let nodes to move be a list of nodes, initially empty."
+        var nodesToMove = [];
+
+        // "If reference node's nextSibling is neither null nor a block node,
+        // append it to nodes to move."
+        if (referenceNode.nextSibling
+        && !isBlockNode(referenceNode.nextSibling)) {
+            nodesToMove.push(referenceNode.nextSibling);
+        }
+
+        // "While nodes to move is nonempty and its last member isn't a br and
+        // its last member's nextSibling is neither null nor a block node,
+        // append its last member's nextSibling to nodes to move."
+        if (nodesToMove.length
+        && !isHtmlElement(nodesToMove[nodesToMove.length - 1], "br")
+        && nodesToMove[nodesToMove.length - 1].nextSibling
+        && !isBlockNode(nodesToMove[nodesToMove.length - 1].nextSibling)) {
+            nodesToMove.push(nodesToMove[nodesToMove.length - 1].nextSibling);
+        }
+
+        // "Record the values of nodes to move, and let values be the result."
+        var values = recordValues(nodesToMove);
+
+        // "For each node in nodes to move, append node as the last child of
+        // start block, preserving ranges."
+        nodesToMove.forEach(function(node) {
+            movePreservingRanges(node, startBlock, -1);
+        });
+
+    // "Otherwise:"
+    } else {
+        // "Call collapse() on the context object's Selection, with first
+        // argument start block and second argument start block's length."
+        getSelection().collapse(startBlock, getNodeLength(startBlock));
+        getActiveRange().setStart(startBlock, getNodeLength(startBlock));
+        getActiveRange().collapse(true);
+
+        // "If end block's firstChild is an inline node and start block's
+        // lastChild is a br, remove start block's lastChild from it."
+        if (isInlineNode(endBlock.firstChild)
+        && isHtmlElement(startBlock.lastChild, "br")) {
+            startBlock.removeChild(startBlock.lastChild);
+        }
+
+        // "Record the values of end block's children, and let values be the
+        // result."
+        var values = recordValues([].slice.call(endBlock.childNodes));
+
+        // "While end block has children, append the first child of end block
+        // to start block, preserving ranges."
+        while (endBlock.hasChildNodes()) {
+            movePreservingRanges(endBlock.firstChild, startBlock, -1);
+        }
+
+        // "While end block has no children, let parent be the parent of end
+        // block, then remove end block from parent, then set end block to
+        // parent."
+        while (!endBlock.hasChildNodes()) {
+            var parent_ = endBlock.parentNode;
+            parent_.removeChild(endBlock);
+            endBlock = parent_;
+        }
+    }
+
+    // "Let ancestor be start block."
+    var ancestor = startBlock;
+
+    // "While ancestor has an inclusive ancestor ol in the same editing host
+    // whose nextSibling is also an ol in the same editing host, or an
+    // inclusive ancestor ul in the same editing host whose nextSibling is also
+    // a ul in the same editing host:"
+    while (getInclusiveAncestors(ancestor).some(function(node) {
+        return inSameEditingHost(ancestor, node)
+            && (
+                (isHtmlElement(node, "ol") && isHtmlElement(node.nextSibling, "ol"))
+                || (isHtmlElement(node, "ul") && isHtmlElement(node.nextSibling, "ul"))
+            ) && inSameEditingHost(ancestor, node.nextSibling);
+    })) {
+        // "While ancestor and its nextSibling are not both ols in the same
+        // editing host, and are also not both uls in the same editing host,
+        // set ancestor to its parent."
+        while (!(
+            isHtmlElement(ancestor, "ol")
+            && isHtmlElement(ancestor.nextSibling, "ol")
+            && inSameEditingHost(ancestor, ancestor.nextSibling)
+        ) && !(
+            isHtmlElement(ancestor, "ul")
+            && isHtmlElement(ancestor.nextSibling, "ul")
+            && inSameEditingHost(ancestor, ancestor.nextSibling)
+        )) {
+            ancestor = ancestor.parentNode;
+        }
+
+        // "While ancestor's nextSibling has children, append ancestor's
+        // nextSibling's firstChild as the last child of ancestor, preserving
+        // ranges."
+        while (ancestor.nextSibling.hasChildNodes()) {
+            movePreservingRanges(ancestor.nextSibling.firstChild, ancestor, -1);
+        }
+
+        // "Remove ancestor's nextSibling from its parent."
+        ancestor.parentNode.removeChild(ancestor.nextSibling);
+    }
+
+    // "Restore the values from values."
+    restoreValues(values);
+
+    // "If start block has no children, call createElement("br") on the context
+    // object and append the result as the last child of start block."
+    if (!startBlock.hasChildNodes()) {
+        startBlock.appendChild(document.createElement("br"));
+    }
+
+    // "Remove extraneous line breaks at the end of start block."
+    removeExtraneousLineBreaksAtTheEndOf(startBlock);
+
+    // "Restore states and values from overrides."
+    restoreStatesAndValues(overrides);
+}
+
+
+//@}
+///// Splitting a node list's parent /////
+//@{
+
+function splitParent(nodeList) {
+    // "Let original parent be the parent of the first member of node list."
+    var originalParent = nodeList[0].parentNode;
+
+    // "If original parent is not editable or its parent is null, do nothing
+    // and abort these steps."
+    if (!isEditable(originalParent)
+    || !originalParent.parentNode) {
+        return;
+    }
+
+    // "If the first child of original parent is in node list, remove
+    // extraneous line breaks before original parent."
+    if (nodeList.indexOf(originalParent.firstChild) != -1) {
+        removeExtraneousLineBreaksBefore(originalParent);
+    }
+
+    // "If the first child of original parent is in node list, and original
+    // parent follows a line break, set follows line break to true. Otherwise,
+    // set follows line break to false."
+    var followsLineBreak_ = nodeList.indexOf(originalParent.firstChild) != -1
+        && followsLineBreak(originalParent);
+
+    // "If the last child of original parent is in node list, and original
+    // parent precedes a line break, set precedes line break to true.
+    // Otherwise, set precedes line break to false."
+    var precedesLineBreak_ = nodeList.indexOf(originalParent.lastChild) != -1
+        && precedesLineBreak(originalParent);
+
+    // "If the first child of original parent is not in node list, but its last
+    // child is:"
+    if (nodeList.indexOf(originalParent.firstChild) == -1
+    && nodeList.indexOf(originalParent.lastChild) != -1) {
+        // "For each node in node list, in reverse order, insert node into the
+        // parent of original parent immediately after original parent,
+        // preserving ranges."
+        for (var i = nodeList.length - 1; i >= 0; i--) {
+            movePreservingRanges(nodeList[i], originalParent.parentNode, 1 + getNodeIndex(originalParent));
+        }
+
+        // "If precedes line break is true, and the last member of node list
+        // does not precede a line break, call createElement("br") on the
+        // context object and insert the result immediately after the last
+        // member of node list."
+        if (precedesLineBreak_
+        && !precedesLineBreak(nodeList[nodeList.length - 1])) {
+            nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);
+        }
+
+        // "Remove extraneous line breaks at the end of original parent."
+        removeExtraneousLineBreaksAtTheEndOf(originalParent);
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "If the first child of original parent is not in node list:"
+    if (nodeList.indexOf(originalParent.firstChild) == -1) {
+        // "Let cloned parent be the result of calling cloneNode(false) on
+        // original parent."
+        var clonedParent = originalParent.cloneNode(false);
+
+        // "If original parent has an id attribute, unset it."
+        originalParent.removeAttribute("id");
+
+        // "Insert cloned parent into the parent of original parent immediately
+        // before original parent."
+        originalParent.parentNode.insertBefore(clonedParent, originalParent);
+
+        // "While the previousSibling of the first member of node list is not
+        // null, append the first child of original parent as the last child of
+        // cloned parent, preserving ranges."
+        while (nodeList[0].previousSibling) {
+            movePreservingRanges(originalParent.firstChild, clonedParent, clonedParent.childNodes.length);
+        }
+    }
+
+    // "For each node in node list, insert node into the parent of original
+    // parent immediately before original parent, preserving ranges."
+    for (var i = 0; i < nodeList.length; i++) {
+        movePreservingRanges(nodeList[i], originalParent.parentNode, getNodeIndex(originalParent));
+    }
+
+    // "If follows line break is true, and the first member of node list does
+    // not follow a line break, call createElement("br") on the context object
+    // and insert the result immediately before the first member of node list."
+    if (followsLineBreak_
+    && !followsLineBreak(nodeList[0])) {
+        nodeList[0].parentNode.insertBefore(document.createElement("br"), nodeList[0]);
+    }
+
+    // "If the last member of node list is an inline node other than a br, and
+    // the first child of original parent is a br, and original parent is not
+    // an inline node, remove the first child of original parent from original
+    // parent."
+    if (isInlineNode(nodeList[nodeList.length - 1])
+    && !isHtmlElement(nodeList[nodeList.length - 1], "br")
+    && isHtmlElement(originalParent.firstChild, "br")
+    && !isInlineNode(originalParent)) {
+        originalParent.removeChild(originalParent.firstChild);
+    }
+
+    // "If original parent has no children:"
+    if (!originalParent.hasChildNodes()) {
+        // "Remove original parent from its parent."
+        originalParent.parentNode.removeChild(originalParent);
+
+        // "If precedes line break is true, and the last member of node list
+        // does not precede a line break, call createElement("br") on the
+        // context object and insert the result immediately after the last
+        // member of node list."
+        if (precedesLineBreak_
+        && !precedesLineBreak(nodeList[nodeList.length - 1])) {
+            nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);
+        }
+
+    // "Otherwise, remove extraneous line breaks before original parent."
+    } else {
+        removeExtraneousLineBreaksBefore(originalParent);
+    }
+
+    // "If node list's last member's nextSibling is null, but its parent is not
+    // null, remove extraneous line breaks at the end of node list's last
+    // member's parent."
+    if (!nodeList[nodeList.length - 1].nextSibling
+    && nodeList[nodeList.length - 1].parentNode) {
+        removeExtraneousLineBreaksAtTheEndOf(nodeList[nodeList.length - 1].parentNode);
+    }
+}
+
+// "To remove a node node while preserving its descendants, split the parent of
+// node's children if it has any. If it has no children, instead remove it from
+// its parent."
+function removePreservingDescendants(node) {
+    if (node.hasChildNodes()) {
+        splitParent([].slice.call(node.childNodes));
+    } else {
+        node.parentNode.removeChild(node);
+    }
+}
+
+
+//@}
+///// Canonical space sequences /////
+//@{
+
+function canonicalSpaceSequence(n, nonBreakingStart, nonBreakingEnd) {
+    // "If n is zero, return the empty string."
+    if (n == 0) {
+        return "";
+    }
+
+    // "If n is one and both non-breaking start and non-breaking end are false,
+    // return a single space (U+0020)."
+    if (n == 1 && !nonBreakingStart && !nonBreakingEnd) {
+        return " ";
+    }
+
+    // "If n is one, return a single non-breaking space (U+00A0)."
+    if (n == 1) {
+        return "\xa0";
+    }
+
+    // "Let buffer be the empty string."
+    var buffer = "";
+
+    // "If non-breaking start is true, let repeated pair be U+00A0 U+0020.
+    // Otherwise, let it be U+0020 U+00A0."
+    var repeatedPair;
+    if (nonBreakingStart) {
+        repeatedPair = "\xa0 ";
+    } else {
+        repeatedPair = " \xa0";
+    }
+
+    // "While n is greater than three, append repeated pair to buffer and
+    // subtract two from n."
+    while (n > 3) {
+        buffer += repeatedPair;
+        n -= 2;
+    }
+
+    // "If n is three, append a three-element string to buffer depending on
+    // non-breaking start and non-breaking end:"
+    if (n == 3) {
+        buffer +=
+            !nonBreakingStart && !nonBreakingEnd ? " \xa0 "
+            : nonBreakingStart && !nonBreakingEnd ? "\xa0\xa0 "
+            : !nonBreakingStart && nonBreakingEnd ? " \xa0\xa0"
+            : nonBreakingStart && nonBreakingEnd ? "\xa0 \xa0"
+            : "impossible";
+
+    // "Otherwise, append a two-element string to buffer depending on
+    // non-breaking start and non-breaking end:"
+    } else {
+        buffer +=
+            !nonBreakingStart && !nonBreakingEnd ? "\xa0 "
+            : nonBreakingStart && !nonBreakingEnd ? "\xa0 "
+            : !nonBreakingStart && nonBreakingEnd ? " \xa0"
+            : nonBreakingStart && nonBreakingEnd ? "\xa0\xa0"
+            : "impossible";
+    }
+
+    // "Return buffer."
+    return buffer;
+}
+
+function canonicalizeWhitespace(node, offset, fixCollapsedSpace) {
+    if (fixCollapsedSpace === undefined) {
+        // "an optional boolean argument fix collapsed space that defaults to
+        // true"
+        fixCollapsedSpace = true;
+    }
+
+    // "If node is neither editable nor an editing host, abort these steps."
+    if (!isEditable(node) && !isEditingHost(node)) {
+        return;
+    }
+
+    // "Let start node equal node and let start offset equal offset."
+    var startNode = node;
+    var startOffset = offset;
+
+    // "Repeat the following steps:"
+    while (true) {
+        // "If start node has a child in the same editing host with index start
+        // offset minus one, set start node to that child, then set start
+        // offset to start node's length."
+        if (0 <= startOffset - 1
+        && inSameEditingHost(startNode, startNode.childNodes[startOffset - 1])) {
+            startNode = startNode.childNodes[startOffset - 1];
+            startOffset = getNodeLength(startNode);
+
+        // "Otherwise, if start offset is zero and start node does not follow a
+        // line break and start node's parent is in the same editing host, set
+        // start offset to start node's index, then set start node to its
+        // parent."
+        } else if (startOffset == 0
+        && !followsLineBreak(startNode)
+        && inSameEditingHost(startNode, startNode.parentNode)) {
+            startOffset = getNodeIndex(startNode);
+            startNode = startNode.parentNode;
+
+        // "Otherwise, if start node is a Text node and its parent's resolved
+        // value for "white-space" is neither "pre" nor "pre-wrap" and start
+        // offset is not zero and the (start offset − 1)st element of start
+        // node's data is a space (0x0020) or non-breaking space (0x00A0),
+        // subtract one from start offset."
+        } else if (startNode.nodeType == Node.TEXT_NODE
+        && ["pre", "pre-wrap"].indexOf(getComputedStyle(startNode.parentNode).whiteSpace) == -1
+        && startOffset != 0
+        && /[ \xa0]/.test(startNode.data[startOffset - 1])) {
+            startOffset--;
+
+        // "Otherwise, break from this loop."
+        } else {
+            break;
+        }
+    }
+
+    // "Let end node equal start node and end offset equal start offset."
+    var endNode = startNode;
+    var endOffset = startOffset;
+
+    // "Let length equal zero."
+    var length = 0;
+
+    // "Let collapse spaces be true if start offset is zero and start node
+    // follows a line break, otherwise false."
+    var collapseSpaces = startOffset == 0 && followsLineBreak(startNode);
+
+    // "Repeat the following steps:"
+    while (true) {
+        // "If end node has a child in the same editing host with index end
+        // offset, set end node to that child, then set end offset to zero."
+        if (endOffset < endNode.childNodes.length
+        && inSameEditingHost(endNode, endNode.childNodes[endOffset])) {
+            endNode = endNode.childNodes[endOffset];
+            endOffset = 0;
+
+        // "Otherwise, if end offset is end node's length and end node does not
+        // precede a line break and end node's parent is in the same editing
+        // host, set end offset to one plus end node's index, then set end node
+        // to its parent."
+        } else if (endOffset == getNodeLength(endNode)
+        && !precedesLineBreak(endNode)
+        && inSameEditingHost(endNode, endNode.parentNode)) {
+            endOffset = 1 + getNodeIndex(endNode);
+            endNode = endNode.parentNode;
+
+        // "Otherwise, if end node is a Text node and its parent's resolved
+        // value for "white-space" is neither "pre" nor "pre-wrap" and end
+        // offset is not end node's length and the end offsetth element of
+        // end node's data is a space (0x0020) or non-breaking space (0x00A0):"
+        } else if (endNode.nodeType == Node.TEXT_NODE
+        && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -1
+        && endOffset != getNodeLength(endNode)
+        && /[ \xa0]/.test(endNode.data[endOffset])) {
+            // "If fix collapsed space is true, and collapse spaces is true,
+            // and the end offsetth code unit of end node's data is a space
+            // (0x0020): call deleteData(end offset, 1) on end node, then
+            // continue this loop from the beginning."
+            if (fixCollapsedSpace
+            && collapseSpaces
+            && " " == endNode.data[endOffset]) {
+                endNode.deleteData(endOffset, 1);
+                continue;
+            }
+
+            // "Set collapse spaces to true if the end offsetth element of end
+            // node's data is a space (0x0020), false otherwise."
+            collapseSpaces = " " == endNode.data[endOffset];
+
+            // "Add one to end offset."
+            endOffset++;
+
+            // "Add one to length."
+            length++;
+
+        // "Otherwise, break from this loop."
+        } else {
+            break;
+        }
+    }
+
+    // "If fix collapsed space is true, then while (start node, start offset)
+    // is before (end node, end offset):"
+    if (fixCollapsedSpace) {
+        while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {
+            // "If end node has a child in the same editing host with index end
+            // offset − 1, set end node to that child, then set end offset to end
+            // node's length."
+            if (0 <= endOffset - 1
+            && endOffset - 1 < endNode.childNodes.length
+            && inSameEditingHost(endNode, endNode.childNodes[endOffset - 1])) {
+                endNode = endNode.childNodes[endOffset - 1];
+                endOffset = getNodeLength(endNode);
+
+            // "Otherwise, if end offset is zero and end node's parent is in the
+            // same editing host, set end offset to end node's index, then set end
+            // node to its parent."
+            } else if (endOffset == 0
+            && inSameEditingHost(endNode, endNode.parentNode)) {
+                endOffset = getNodeIndex(endNode);
+                endNode = endNode.parentNode;
+
+            // "Otherwise, if end node is a Text node and its parent's resolved
+            // value for "white-space" is neither "pre" nor "pre-wrap" and end
+            // offset is end node's length and the last code unit of end node's
+            // data is a space (0x0020) and end node precedes a line break:"
+            } else if (endNode.nodeType == Node.TEXT_NODE
+            && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -1
+            && endOffset == getNodeLength(endNode)
+            && endNode.data[endNode.data.length - 1] == " "
+            && precedesLineBreak(endNode)) {
+                // "Subtract one from end offset."
+                endOffset--;
+
+                // "Subtract one from length."
+                length--;
+
+                // "Call deleteData(end offset, 1) on end node."
+                endNode.deleteData(endOffset, 1);
+
+            // "Otherwise, break from this loop."
+            } else {
+                break;
+            }
+        }
+    }
+
+    // "Let replacement whitespace be the canonical space sequence of length
+    // length. non-breaking start is true if start offset is zero and start
+    // node follows a line break, and false otherwise. non-breaking end is true
+    // if end offset is end node's length and end node precedes a line break,
+    // and false otherwise."
+    var replacementWhitespace = canonicalSpaceSequence(length,
+        startOffset == 0 && followsLineBreak(startNode),
+        endOffset == getNodeLength(endNode) && precedesLineBreak(endNode));
+
+    // "While (start node, start offset) is before (end node, end offset):"
+    while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {
+        // "If start node has a child with index start offset, set start node
+        // to that child, then set start offset to zero."
+        if (startOffset < startNode.childNodes.length) {
+            startNode = startNode.childNodes[startOffset];
+            startOffset = 0;
+
+        // "Otherwise, if start node is not a Text node or if start offset is
+        // start node's length, set start offset to one plus start node's
+        // index, then set start node to its parent."
+        } else if (startNode.nodeType != Node.TEXT_NODE
+        || startOffset == getNodeLength(startNode)) {
+            startOffset = 1 + getNodeIndex(startNode);
+            startNode = startNode.parentNode;
+
+        // "Otherwise:"
+        } else {
+            // "Remove the first element from replacement whitespace, and let
+            // element be that element."
+            var element = replacementWhitespace[0];
+            replacementWhitespace = replacementWhitespace.slice(1);
+
+            // "If element is not the same as the start offsetth element of
+            // start node's data:"
+            if (element != startNode.data[startOffset]) {
+                // "Call insertData(start offset, element) on start node."
+                startNode.insertData(startOffset, element);
+
+                // "Call deleteData(start offset + 1, 1) on start node."
+                startNode.deleteData(startOffset + 1, 1);
+            }
+
+            // "Add one to start offset."
+            startOffset++;
+        }
+    }
+}
+
+
+//@}
+///// Indenting and outdenting /////
+//@{
+
+function indentNodes(nodeList) {
+    // "If node list is empty, do nothing and abort these steps."
+    if (!nodeList.length) {
+        return;
+    }
+
+    // "Let first node be the first member of node list."
+    var firstNode = nodeList[0];
+
+    // "If first node's parent is an ol or ul:"
+    if (isHtmlElement(firstNode.parentNode, ["OL", "UL"])) {
+        // "Let tag be the local name of the parent of first node."
+        var tag = firstNode.parentNode.tagName;
+
+        // "Wrap node list, with sibling criteria returning true for an HTML
+        // element with local name tag and false otherwise, and new parent
+        // instructions returning the result of calling createElement(tag) on
+        // the ownerDocument of first node."
+        wrap(nodeList,
+            function(node) { return isHtmlElement(node, tag) },
+            function() { return firstNode.ownerDocument.createElement(tag) });
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "Wrap node list, with sibling criteria returning true for a simple
+    // indentation element and false otherwise, and new parent instructions
+    // returning the result of calling createElement("blockquote") on the
+    // ownerDocument of first node. Let new parent be the result."
+    var newParent = wrap(nodeList,
+        function(node) { return isSimpleIndentationElement(node) },
+        function() { return firstNode.ownerDocument.createElement("blockquote") });
+
+    // "Fix disallowed ancestors of new parent."
+    fixDisallowedAncestors(newParent);
+}
+
+function outdentNode(node) {
+    // "If node is not editable, abort these steps."
+    if (!isEditable(node)) {
+        return;
+    }
+
+    // "If node is a simple indentation element, remove node, preserving its
+    // descendants.  Then abort these steps."
+    if (isSimpleIndentationElement(node)) {
+        removePreservingDescendants(node);
+        return;
+    }
+
+    // "If node is an indentation element:"
+    if (isIndentationElement(node)) {
+        // "Unset the dir attribute of node, if any."
+        node.removeAttribute("dir");
+
+        // "Unset the margin, padding, and border CSS properties of node."
+        node.style.margin = "";
+        node.style.padding = "";
+        node.style.border = "";
+        if (node.getAttribute("style") == ""
+        // Crazy WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=68551
+        || node.getAttribute("style") == "border-width: initial; border-color: initial; ") {
+            node.removeAttribute("style");
+        }
+
+        // "Set the tag name of node to "div"."
+        setTagName(node, "div");
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "Let current ancestor be node's parent."
+    var currentAncestor = node.parentNode;
+
+    // "Let ancestor list be a list of nodes, initially empty."
+    var ancestorList = [];
+
+    // "While current ancestor is an editable Element that is neither a simple
+    // indentation element nor an ol nor a ul, append current ancestor to
+    // ancestor list and then set current ancestor to its parent."
+    while (isEditable(currentAncestor)
+    && currentAncestor.nodeType == Node.ELEMENT_NODE
+    && !isSimpleIndentationElement(currentAncestor)
+    && !isHtmlElement(currentAncestor, ["ol", "ul"])) {
+        ancestorList.push(currentAncestor);
+        currentAncestor = currentAncestor.parentNode;
+    }
+
+    // "If current ancestor is not an editable simple indentation element:"
+    if (!isEditable(currentAncestor)
+    || !isSimpleIndentationElement(currentAncestor)) {
+        // "Let current ancestor be node's parent."
+        currentAncestor = node.parentNode;
+
+        // "Let ancestor list be the empty list."
+        ancestorList = [];
+
+        // "While current ancestor is an editable Element that is neither an
+        // indentation element nor an ol nor a ul, append current ancestor to
+        // ancestor list and then set current ancestor to its parent."
+        while (isEditable(currentAncestor)
+        && currentAncestor.nodeType == Node.ELEMENT_NODE
+        && !isIndentationElement(currentAncestor)
+        && !isHtmlElement(currentAncestor, ["ol", "ul"])) {
+            ancestorList.push(currentAncestor);
+            currentAncestor = currentAncestor.parentNode;
+        }
+    }
+
+    // "If node is an ol or ul and current ancestor is not an editable
+    // indentation element:"
+    if (isHtmlElement(node, ["OL", "UL"])
+    && (!isEditable(currentAncestor)
+    || !isIndentationElement(currentAncestor))) {
+        // "Unset the reversed, start, and type attributes of node, if any are
+        // set."
+        node.removeAttribute("reversed");
+        node.removeAttribute("start");
+        node.removeAttribute("type");
+
+        // "Let children be the children of node."
+        var children = [].slice.call(node.childNodes);
+
+        // "If node has attributes, and its parent is not an ol or ul, set the
+        // tag name of node to "div"."
+        if (node.attributes.length
+        && !isHtmlElement(node.parentNode, ["OL", "UL"])) {
+            setTagName(node, "div");
+
+        // "Otherwise:"
+        } else {
+            // "Record the values of node's children, and let values be the
+            // result."
+            var values = recordValues([].slice.call(node.childNodes));
+
+            // "Remove node, preserving its descendants."
+            removePreservingDescendants(node);
+
+            // "Restore the values from values."
+            restoreValues(values);
+        }
+
+        // "Fix disallowed ancestors of each member of children."
+        for (var i = 0; i < children.length; i++) {
+            fixDisallowedAncestors(children[i]);
+        }
+
+        // "Abort these steps."
+        return;
+    }
+
+    // "If current ancestor is not an editable indentation element, abort these
+    // steps."
+    if (!isEditable(currentAncestor)
+    || !isIndentationElement(currentAncestor)) {
+        return;
+    }
+
+    // "Append current ancestor to ancestor list."
+    ancestorList.push(currentAncestor);
+
+    // "Let original ancestor be current ancestor."
+    var originalAncestor = currentAncestor;
+
+    // "While ancestor list is not empty:"
+    while (ancestorList.length) {
+        // "Let current ancestor be the last member of ancestor list."
+        //
+        // "Remove the last member of ancestor list."
+        currentAncestor = ancestorList.pop();
+
+        // "Let target be the child of current ancestor that is equal to either
+        // node or the last member of ancestor list."
+        var target = node.parentNode == currentAncestor
+            ? node
+            : ancestorList[ancestorList.length - 1];
+
+        // "If target is an inline node that is not a br, and its nextSibling
+        // is a br, remove target's nextSibling from its parent."
+        if (isInlineNode(target)
+        && !isHtmlElement(target, "BR")
+        && isHtmlElement(target.nextSibling, "BR")) {
+            target.parentNode.removeChild(target.nextSibling);
+        }
+
+        // "Let preceding siblings be the preceding siblings of target, and let
+        // following siblings be the following siblings of target."
+        var precedingSiblings = [].slice.call(currentAncestor.childNodes, 0, getNodeIndex(target));
+        var followingSiblings = [].slice.call(currentAncestor.childNodes, 1 + getNodeIndex(target));
+
+        // "Indent preceding siblings."
+        indentNodes(precedingSiblings);
+
+        // "Indent following siblings."
+        indentNodes(followingSiblings);
+    }
+
+    // "Outdent original ancestor."
+    outdentNode(originalAncestor);
+}
+
+
+//@}
+///// Toggling lists /////
+//@{
+
+function toggleLists(tagName) {
+    // "Let mode be "disable" if the selection's list state is tag name, and
+    // "enable" otherwise."
+    var mode = getSelectionListState() == tagName ? "disable" : "enable";
+
+    var range = getActiveRange();
+    tagName = tagName.toUpperCase();
+
+    // "Let other tag name be "ol" if tag name is "ul", and "ul" if tag name is
+    // "ol"."
+    var otherTagName = tagName == "OL" ? "UL" : "OL";
+
+    // "Let items be a list of all lis that are ancestor containers of the
+    // range's start and/or end node."
+    //
+    // It's annoying to get this in tree order using functional stuff without
+    // doing getDescendants(document), which is slow, so I do it imperatively.
+    var items = [];
+    (function(){
+        for (
+            var ancestorContainer = range.endContainer;
+            ancestorContainer != range.commonAncestorContainer;
+            ancestorContainer = ancestorContainer.parentNode
+        ) {
+            if (isHtmlElement(ancestorContainer, "li")) {
+                items.unshift(ancestorContainer);
+            }
+        }
+        for (
+            var ancestorContainer = range.startContainer;
+            ancestorContainer;
+            ancestorContainer = ancestorContainer.parentNode
+        ) {
+            if (isHtmlElement(ancestorContainer, "li")) {
+                items.unshift(ancestorContainer);
+            }
+        }
+    })();
+
+    // "For each item in items, normalize sublists of item."
+    items.forEach(normalizeSublists);
+
+    // "Block-extend the range, and let new range be the result."
+    var newRange = blockExtend(range);
+
+    // "If mode is "enable", then let lists to convert consist of every
+    // editable HTML element with local name other tag name that is contained
+    // in new range, and for every list in lists to convert:"
+    if (mode == "enable") {
+        getAllContainedNodes(newRange, function(node) {
+            return isEditable(node)
+                && isHtmlElement(node, otherTagName);
+        }).forEach(function(list) {
+            // "If list's previousSibling or nextSibling is an editable HTML
+            // element with local name tag name:"
+            if ((isEditable(list.previousSibling) && isHtmlElement(list.previousSibling, tagName))
+            || (isEditable(list.nextSibling) && isHtmlElement(list.nextSibling, tagName))) {
+                // "Let children be list's children."
+                var children = [].slice.call(list.childNodes);
+
+                // "Record the values of children, and let values be the
+                // result."
+                var values = recordValues(children);
+
+                // "Split the parent of children."
+                splitParent(children);
+
+                // "Wrap children, with sibling criteria returning true for an
+                // HTML element with local name tag name and false otherwise."
+                wrap(children, function(node) { return isHtmlElement(node, tagName) });
+
+                // "Restore the values from values."
+                restoreValues(values);
+
+            // "Otherwise, set the tag name of list to tag name."
+            } else {
+                setTagName(list, tagName);
+            }
+        });
+    }
+
+    // "Let node list be a list of nodes, initially empty."
+    //
+    // "For each node node contained in new range, if node is editable; the
+    // last member of node list (if any) is not an ancestor of node; node
+    // is not an indentation element; and either node is an ol or ul, or its
+    // parent is an ol or ul, or it is an allowed child of "li"; then append
+    // node to node list."
+    var nodeList = getContainedNodes(newRange, function(node) {
+        return isEditable(node)
+        && !isIndentationElement(node)
+        && (isHtmlElement(node, ["OL", "UL"])
+        || isHtmlElement(node.parentNode, ["OL", "UL"])
+        || isAllowedChild(node, "li"));
+    });
+
+    // "If mode is "enable", remove from node list any ol or ul whose parent is
+    // not also an ol or ul."
+    if (mode == "enable") {
+        nodeList = nodeList.filter(function(node) {
+            return !isHtmlElement(node, ["ol", "ul"])
+                || isHtmlElement(node.parentNode, ["ol", "ul"]);
+        });
+    }
+
+    // "If mode is "disable", then while node list is not empty:"
+    if (mode == "disable") {
+        while (nodeList.length) {
+            // "Let sublist be an empty list of nodes."
+            var sublist = [];
+
+            // "Remove the first member from node list and append it to
+            // sublist."
+            sublist.push(nodeList.shift());
+
+            // "If the first member of sublist is an HTML element with local
+            // name tag name, outdent it and continue this loop from the
+            // beginning."
+            if (isHtmlElement(sublist[0], tagName)) {
+                outdentNode(sublist[0]);
+                continue;
+            }
+
+            // "While node list is not empty, and the first member of node list
+            // is the nextSibling of the last member of sublist and is not an
+            // HTML element with local name tag name, remove the first member
+            // from node list and append it to sublist."
+            while (nodeList.length
+            && nodeList[0] == sublist[sublist.length - 1].nextSibling
+            && !isHtmlElement(nodeList[0], tagName)) {
+                sublist.push(nodeList.shift());
+            }
+
+            // "Record the values of sublist, and let values be the result."
+            var values = recordValues(sublist);
+
+            // "Split the parent of sublist."
+            splitParent(sublist);
+
+            // "Fix disallowed ancestors of each member of sublist."
+            for (var i = 0; i < sublist.length; i++) {
+                fixDisallowedAncestors(sublist[i]);
+            }
+
+            // "Restore the values from values."
+            restoreValues(values);
+        }
+
+    // "Otherwise, while node list is not empty:"
+    } else {
+        while (nodeList.length) {
+            // "Let sublist be an empty list of nodes."
+            var sublist = [];
+
+            // "While either sublist is empty, or node list is not empty and
+            // its first member is the nextSibling of sublist's last member:"
+            while (!sublist.length
+            || (nodeList.length
+            && nodeList[0] == sublist[sublist.length - 1].nextSibling)) {
+                // "If node list's first member is a p or div, set the tag name
+                // of node list's first member to "li", and append the result
+                // to sublist. Remove the first member from node list."
+                if (isHtmlElement(nodeList[0], ["p", "div"])) {
+                    sublist.push(setTagName(nodeList[0], "li"));
+                    nodeList.shift();
+
+                // "Otherwise, if the first member of node list is an li or ol
+                // or ul, remove it from node list and append it to sublist."
+                } else if (isHtmlElement(nodeList[0], ["li", "ol", "ul"])) {
+                    sublist.push(nodeList.shift());
+
+                // "Otherwise:"
+                } else {
+                    // "Let nodes to wrap be a list of nodes, initially empty."
+                    var nodesToWrap = [];
+
+                    // "While nodes to wrap is empty, or node list is not empty
+                    // and its first member is the nextSibling of nodes to
+                    // wrap's last member and the first member of node list is
+                    // an inline node and the last member of nodes to wrap is
+                    // an inline node other than a br, remove the first member
+                    // from node list and append it to nodes to wrap."
+                    while (!nodesToWrap.length
+                    || (nodeList.length
+                    && nodeList[0] == nodesToWrap[nodesToWrap.length - 1].nextSibling
+                    && isInlineNode(nodeList[0])
+                    && isInlineNode(nodesToWrap[nodesToWrap.length - 1])
+                    && !isHtmlElement(nodesToWrap[nodesToWrap.length - 1], "br"))) {
+                        nodesToWrap.push(nodeList.shift());
+                    }
+
+                    // "Wrap nodes to wrap, with new parent instructions
+                    // returning the result of calling createElement("li") on
+                    // the context object. Append the result to sublist."
+                    sublist.push(wrap(nodesToWrap,
+                        undefined,
+                        function() { return document.createElement("li") }));
+                }
+            }
+
+            // "If sublist's first member's parent is an HTML element with
+            // local name tag name, or if every member of sublist is an ol or
+            // ul, continue this loop from the beginning."
+            if (isHtmlElement(sublist[0].parentNode, tagName)
+            || sublist.every(function(node) { return isHtmlElement(node, ["ol", "ul"]) })) {
+                continue;
+            }
+
+            // "If sublist's first member's parent is an HTML element with
+            // local name other tag name:"
+            if (isHtmlElement(sublist[0].parentNode, otherTagName)) {
+                // "Record the values of sublist, and let values be the
+                // result."
+                var values = recordValues(sublist);
+
+                // "Split the parent of sublist."
+                splitParent(sublist);
+
+                // "Wrap sublist, with sibling criteria returning true for an
+                // HTML element with local name tag name and false otherwise,
+                // and new parent instructions returning the result of calling
+                // createElement(tag name) on the context object."
+                wrap(sublist,
+                    function(node) { return isHtmlElement(node, tagName) },
+                    function() { return document.createElement(tagName) });
+
+                // "Restore the values from values."
+                restoreValues(values);
+
+                // "Continue this loop from the beginning."
+                continue;
+            }
+
+            // "Wrap sublist, with sibling criteria returning true for an HTML
+            // element with local name tag name and false otherwise, and new
+            // parent instructions being the following:"
+            // . . .
+            // "Fix disallowed ancestors of the previous step's result."
+            fixDisallowedAncestors(wrap(sublist,
+                function(node) { return isHtmlElement(node, tagName) },
+                function() {
+                    // "If sublist's first member's parent is not an editable
+                    // simple indentation element, or sublist's first member's
+                    // parent's previousSibling is not an editable HTML element
+                    // with local name tag name, call createElement(tag name)
+                    // on the context object and return the result."
+                    if (!isEditable(sublist[0].parentNode)
+                    || !isSimpleIndentationElement(sublist[0].parentNode)
+                    || !isEditable(sublist[0].parentNode.previousSibling)
+                    || !isHtmlElement(sublist[0].parentNode.previousSibling, tagName)) {
+                        return document.createElement(tagName);
+                    }
+
+                    // "Let list be sublist's first member's parent's
+                    // previousSibling."
+                    var list = sublist[0].parentNode.previousSibling;
+
+                    // "Normalize sublists of list's lastChild."
+                    normalizeSublists(list.lastChild);
+
+                    // "If list's lastChild is not an editable HTML element
+                    // with local name tag name, call createElement(tag name)
+                    // on the context object, and append the result as the last
+                    // child of list."
+                    if (!isEditable(list.lastChild)
+                    || !isHtmlElement(list.lastChild, tagName)) {
+                        list.appendChild(document.createElement(tagName));
+                    }
+
+                    // "Return the last child of list."
+                    return list.lastChild;
+                }
+            ));
+        }
+    }
+}
+
+
+//@}
+///// Justifying the selection /////
+//@{
+
+function justifySelection(alignment) {
+    // "Block-extend the active range, and let new range be the result."
+    var newRange = blockExtend(globalRange);
+
+    // "Let element list be a list of all editable Elements contained in new
+    // range that either has an attribute in the HTML namespace whose local
+    // name is "align", or has a style attribute that sets "text-align", or is
+    // a center."
+    var elementList = getAllContainedNodes(newRange, function(node) {
+        return node.nodeType == Node.ELEMENT_NODE
+            && isEditable(node)
+            // Ignoring namespaces here
+            && (
+                node.hasAttribute("align")
+                || node.style.textAlign != ""
+                || isHtmlElement(node, "center")
+            );
+    });
+
+    // "For each element in element list:"
+    for (var i = 0; i < elementList.length; i++) {
+        var element = elementList[i];
+
+        // "If element has an attribute in the HTML namespace whose local name
+        // is "align", remove that attribute."
+        element.removeAttribute("align");
+
+        // "Unset the CSS property "text-align" on element, if it's set by a
+        // style attribute."
+        element.style.textAlign = "";
+        if (element.getAttribute("style") == "") {
+            element.removeAttribute("style");
+        }
+
+        // "If element is a div or span or center with no attributes, remove
+        // it, preserving its descendants."
+        if (isHtmlElement(element, ["div", "span", "center"])
+        && !element.attributes.length) {
+            removePreservingDescendants(element);
+        }
+
+        // "If element is a center with one or more attributes, set the tag
+        // name of element to "div"."
+        if (isHtmlElement(element, "center")
+        && element.attributes.length) {
+            setTagName(element, "div");
+        }
+    }
+
+    // "Block-extend the active range, and let new range be the result."
+    newRange = blockExtend(globalRange);
+
+    // "Let node list be a list of nodes, initially empty."
+    var nodeList = [];
+
+    // "For each node node contained in new range, append node to node list if
+    // the last member of node list (if any) is not an ancestor of node; node
+    // is editable; node is an allowed child of "div"; and node's alignment
+    // value is not alignment."
+    nodeList = getContainedNodes(newRange, function(node) {
+        return isEditable(node)
+            && isAllowedChild(node, "div")
+            && getAlignmentValue(node) != alignment;
+    });
+
+    // "While node list is not empty:"
+    while (nodeList.length) {
+        // "Let sublist be a list of nodes, initially empty."
+        var sublist = [];
+
+        // "Remove the first member of node list and append it to sublist."
+        sublist.push(nodeList.shift());
+
+        // "While node list is not empty, and the first member of node list is
+        // the nextSibling of the last member of sublist, remove the first
+        // member of node list and append it to sublist."
+        while (nodeList.length
+        && nodeList[0] == sublist[sublist.length - 1].nextSibling) {
+            sublist.push(nodeList.shift());
+        }
+
+        // "Wrap sublist. Sibling criteria returns true for any div that has
+        // one or both of the following two attributes and no other attributes,
+        // and false otherwise:"
+        //
+        //   * "An align attribute whose value is an ASCII case-insensitive
+        //     match for alignment.
+        //   * "A style attribute which sets exactly one CSS property
+        //     (including unrecognized or invalid attributes), which is
+        //     "text-align", which is set to alignment.
+        //
+        // "New parent instructions are to call createElement("div") on the
+        // context object, then set its CSS property "text-align" to alignment
+        // and return the result."
+        wrap(sublist,
+            function(node) {
+                return isHtmlElement(node, "div")
+                    && [].every.call(node.attributes, function(attr) {
+                        return (attr.name == "align" && attr.value.toLowerCase() == alignment)
+                            || (attr.name == "style" && node.style.length == 1 && node.style.textAlign == alignment);
+                    });
+            },
+            function() {
+                var newParent = document.createElement("div");
+                newParent.setAttribute("style", "text-align: " + alignment);
+                return newParent;
+            }
+        );
+    }
+}
+
+
+//@}
+///// Automatic linking /////
+//@{
+// "An autolinkable URL is a string of the following form:"
+var autolinkableUrlRegexp =
+    // "Either a string matching the scheme pattern from RFC 3986 section 3.1
+    // followed by the literal string ://, or the literal string mailto:;
+    // followed by"
+    //
+    // From the RFC: scheme      = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
+    "([a-zA-Z][a-zA-Z0-9+.-]*://|mailto:)"
+    // "Zero or more characters other than space characters; followed by"
+    + "[^ \t\n\f\r]*"
+    // "A character that is not one of the ASCII characters !"'(),-.:;<>[]`{}."
+    + "[^!\"'(),\\-.:;<>[\\]`{}]";
+
+// "A valid e-mail address is a string that matches the ABNF production 1*(
+// atext / "." ) "@" ldh-str *( "." ldh-str ) where atext is defined in RFC
+// 5322 section 3.2.3, and ldh-str is defined in RFC 1034 section 3.5."
+//
+// atext: ALPHA / DIGIT / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" /
+// "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~"
+//
+//<ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
+//<let-dig-hyp> ::= <let-dig> | "-"
+//<let-dig> ::= <letter> | <digit>
+var validEmailRegexp =
+    "[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~.]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*";
+
+function autolink(node, endOffset) {
+    // "While (node, end offset)'s previous equivalent point is not null, set
+    // it to its previous equivalent point."
+    while (getPreviousEquivalentPoint(node, endOffset)) {
+        var prev = getPreviousEquivalentPoint(node, endOffset);
+        node = prev[0];
+        endOffset = prev[1];
+    }
+
+    // "If node is not a Text node, or has an a ancestor, do nothing and abort
+    // these steps."
+    if (node.nodeType != Node.TEXT_NODE
+    || getAncestors(node).some(function(ancestor) { return isHtmlElement(ancestor, "a") })) {
+        return;
+    }
+
+    // "Let search be the largest substring of node's data whose end is end
+    // offset and that contains no space characters."
+    var search = /[^ \t\n\f\r]*$/.exec(node.substringData(0, endOffset))[0];
+
+    // "If some substring of search is an autolinkable URL:"
+    if (new RegExp(autolinkableUrlRegexp).test(search)) {
+        // "While there is no substring of node's data ending at end offset
+        // that is an autolinkable URL, decrement end offset."
+        while (!(new RegExp(autolinkableUrlRegexp + "$").test(node.substringData(0, endOffset)))) {
+            endOffset--;
+        }
+
+        // "Let start offset be the start index of the longest substring of
+        // node's data that is an autolinkable URL ending at end offset."
+        var startOffset = new RegExp(autolinkableUrlRegexp + "$").exec(node.substringData(0, endOffset)).index;
+
+        // "Let href be the substring of node's data starting at start offset
+        // and ending at end offset."
+        var href = node.substringData(startOffset, endOffset - startOffset);
+
+    // "Otherwise, if some substring of search is a valid e-mail address:"
+    } else if (new RegExp(validEmailRegexp).test(search)) {
+        // "While there is no substring of node's data ending at end offset
+        // that is a valid e-mail address, decrement end offset."
+        while (!(new RegExp(validEmailRegexp + "$").test(node.substringData(0, endOffset)))) {
+            endOffset--;
+        }
+
+        // "Let start offset be the start index of the longest substring of
+        // node's data that is a valid e-mail address ending at end offset."
+        var startOffset = new RegExp(validEmailRegexp + "$").exec(node.substringData(0, endOffset)).index;
+
+        // "Let href be "mailto:" concatenated with the substring of node's
+        // data starting at start offset and ending at end offset."
+        var href = "mailto:" + node.substringData(startOffset, endOffset - startOffset);
+
+    // "Otherwise, do nothing and abort these steps."
+    } else {
+        return;
+    }
+
+    // "Let original range be the active range."
+    var originalRange = getActiveRange();
+
+    // "Create a new range with start (node, start offset) and end (node, end
+    // offset), and set the context object's selection's range to it."
+    var newRange = document.createRange();
+    newRange.setStart(node, startOffset);
+    newRange.setEnd(node, endOffset);
+    getSelection().removeAllRanges();
+    getSelection().addRange(newRange);
+    globalRange = newRange;
+
+    // "Take the action for "createLink", with value equal to href."
+    commands.createlink.action(href);
+
+    // "Set the context object's selection's range to original range."
+    getSelection().removeAllRanges();
+    getSelection().addRange(originalRange);
+    globalRange = originalRange;
+}
+//@}
+///// The delete command /////
+//@{
+commands["delete"] = {
+    preservesOverrides: true,
+    action: function() {
+        // "If the active range is not collapsed, delete the selection and
+        // return true."
+        if (!getActiveRange().collapsed) {
+            deleteSelection();
+            return true;
+        }
+
+        // "Canonicalize whitespace at the active range's start."
+        canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
+
+        // "Let node and offset be the active range's start node and offset."
+        var node = getActiveRange().startContainer;
+        var offset = getActiveRange().startOffset;
+
+        // "Repeat the following steps:"
+        while (true) {
+            // "If offset is zero and node's previousSibling is an editable
+            // invisible node, remove node's previousSibling from its parent."
+            if (offset == 0
+            && isEditable(node.previousSibling)
+            && isInvisible(node.previousSibling)) {
+                node.parentNode.removeChild(node.previousSibling);
+
+            // "Otherwise, if node has a child with index offset − 1 and that
+            // child is an editable invisible node, remove that child from
+            // node, then subtract one from offset."
+            } else if (0 <= offset - 1
+            && offset - 1 < node.childNodes.length
+            && isEditable(node.childNodes[offset - 1])
+            && isInvisible(node.childNodes[offset - 1])) {
+                node.removeChild(node.childNodes[offset - 1]);
+                offset--;
+
+            // "Otherwise, if offset is zero and node is an inline node, or if
+            // node is an invisible node, set offset to the index of node, then
+            // set node to its parent."
+            } else if ((offset == 0
+            && isInlineNode(node))
+            || isInvisible(node)) {
+                offset = getNodeIndex(node);
+                node = node.parentNode;
+
+            // "Otherwise, if node has a child with index offset − 1 and that
+            // child is an editable a, remove that child from node, preserving
+            // its descendants. Then return true."
+            } else if (0 <= offset - 1
+            && offset - 1 < node.childNodes.length
+            && isEditable(node.childNodes[offset - 1])
+            && isHtmlElement(node.childNodes[offset - 1], "a")) {
+                removePreservingDescendants(node.childNodes[offset - 1]);
+                return true;
+
+            // "Otherwise, if node has a child with index offset − 1 and that
+            // child is not a block node or a br or an img, set node to that
+            // child, then set offset to the length of node."
+            } else if (0 <= offset - 1
+            && offset - 1 < node.childNodes.length
+            && !isBlockNode(node.childNodes[offset - 1])
+            && !isHtmlElement(node.childNodes[offset - 1], ["br", "img"])) {
+                node = node.childNodes[offset - 1];
+                offset = getNodeLength(node);
+
+            // "Otherwise, break from this loop."
+            } else {
+                break;
+            }
+        }
+
+        // "If node is a Text node and offset is not zero, or if node is a
+        // block node that has a child with index offset − 1 and that child is
+        // a br or hr or img:"
+        if ((node.nodeType == Node.TEXT_NODE
+        && offset != 0)
+        || (isBlockNode(node)
+        && 0 <= offset - 1
+        && offset - 1 < node.childNodes.length
+        && isHtmlElement(node.childNodes[offset - 1], ["br", "hr", "img"]))) {
+            // "Call collapse(node, offset) on the context object's Selection."
+            getSelection().collapse(node, offset);
+            getActiveRange().setEnd(node, offset);
+
+            // "Call extend(node, offset − 1) on the context object's
+            // Selection."
+            getSelection().extend(node, offset - 1);
+            getActiveRange().setStart(node, offset - 1);
+
+            // "Delete the selection."
+            deleteSelection();
+
+            // "Return true."
+            return true;
+        }
+
+        // "If node is an inline node, return true."
+        if (isInlineNode(node)) {
+            return true;
+        }
+
+        // "If node is an li or dt or dd and is the first child of its parent,
+        // and offset is zero:"
+        if (isHtmlElement(node, ["li", "dt", "dd"])
+        && node == node.parentNode.firstChild
+        && offset == 0) {
+            // "Let items be a list of all lis that are ancestors of node."
+            //
+            // Remember, must be in tree order.
+            var items = [];
+            for (var ancestor = node.parentNode; ancestor; ancestor = ancestor.parentNode) {
+                if (isHtmlElement(ancestor, "li")) {
+                    items.unshift(ancestor);
+                }
+            }
+
+            // "Normalize sublists of each item in items."
+            for (var i = 0; i < items.length; i++) {
+                normalizeSublists(items[i]);
+            }
+
+            // "Record the values of the one-node list consisting of node, and
+            // let values be the result."
+            var values = recordValues([node]);
+
+            // "Split the parent of the one-node list consisting of node."
+            splitParent([node]);
+
+            // "Restore the values from values."
+            restoreValues(values);
+
+            // "If node is a dd or dt, and it is not an allowed child of any of
+            // its ancestors in the same editing host, set the tag name of node
+            // to the default single-line container name and let node be the
+            // result."
+            if (isHtmlElement(node, ["dd", "dt"])
+            && getAncestors(node).every(function(ancestor) {
+                return !inSameEditingHost(node, ancestor)
+                    || !isAllowedChild(node, ancestor)
+            })) {
+                node = setTagName(node, defaultSingleLineContainerName);
+            }
+
+            // "Fix disallowed ancestors of node."
+            fixDisallowedAncestors(node);
+
+            // "Return true."
+            return true;
+        }
+
+        // "Let start node equal node and let start offset equal offset."
+        var startNode = node;
+        var startOffset = offset;
+
+        // "Repeat the following steps:"
+        while (true) {
+            // "If start offset is zero, set start offset to the index of start
+            // node and then set start node to its parent."
+            if (startOffset == 0) {
+                startOffset = getNodeIndex(startNode);
+                startNode = startNode.parentNode;
+
+            // "Otherwise, if start node has an editable invisible child with
+            // index start offset minus one, remove it from start node and
+            // subtract one from start offset."
+            } else if (0 <= startOffset - 1
+            && startOffset - 1 < startNode.childNodes.length
+            && isEditable(startNode.childNodes[startOffset - 1])
+            && isInvisible(startNode.childNodes[startOffset - 1])) {
+                startNode.removeChild(startNode.childNodes[startOffset - 1]);
+                startOffset--;
+
+            // "Otherwise, break from this loop."
+            } else {
+                break;
+            }
+        }
+
+        // "If offset is zero, and node has an editable ancestor container in
+        // the same editing host that's an indentation element:"
+        if (offset == 0
+        && getAncestors(node).concat(node).filter(function(ancestor) {
+            return isEditable(ancestor)
+                && inSameEditingHost(ancestor, node)
+                && isIndentationElement(ancestor);
+        }).length) {
+            // "Block-extend the range whose start and end are both (node, 0),
+            // and let new range be the result."
+            var newRange = document.createRange();
+            newRange.setStart(node, 0);
+            newRange = blockExtend(newRange);
+
+            // "Let node list be a list of nodes, initially empty."
+            //
+            // "For each node current node contained in new range, append
+            // current node to node list if the last member of node list (if
+            // any) is not an ancestor of current node, and current node is
+            // editable but has no editable descendants."
+            var nodeList = getContainedNodes(newRange, function(currentNode) {
+                return isEditable(currentNode)
+                    && !hasEditableDescendants(currentNode);
+            });
+
+            // "Outdent each node in node list."
+            for (var i = 0; i < nodeList.length; i++) {
+                outdentNode(nodeList[i]);
+            }
+
+            // "Return true."
+            return true;
+        }
+
+        // "If the child of start node with index start offset is a table,
+        // return true."
+        if (isHtmlElement(startNode.childNodes[startOffset], "table")) {
+            return true;
+        }
+
+        // "If start node has a child with index start offset − 1, and that
+        // child is a table:"
+        if (0 <= startOffset - 1
+        && startOffset - 1 < startNode.childNodes.length
+        && isHtmlElement(startNode.childNodes[startOffset - 1], "table")) {
+            // "Call collapse(start node, start offset − 1) on the context
+            // object's Selection."
+            getSelection().collapse(startNode, startOffset - 1);
+            getActiveRange().setStart(startNode, startOffset - 1);
+
+            // "Call extend(start node, start offset) on the context object's
+            // Selection."
+            getSelection().extend(startNode, startOffset);
+            getActiveRange().setEnd(startNode, startOffset);
+
+            // "Return true."
+            return true;
+        }
+
+        // "If offset is zero; and either the child of start node with index
+        // start offset minus one is an hr, or the child is a br whose
+        // previousSibling is either a br or not an inline node:"
+        if (offset == 0
+        && (isHtmlElement(startNode.childNodes[startOffset - 1], "hr")
+            || (
+                isHtmlElement(startNode.childNodes[startOffset - 1], "br")
+                && (
+                    isHtmlElement(startNode.childNodes[startOffset - 1].previousSibling, "br")
+                    || !isInlineNode(startNode.childNodes[startOffset - 1].previousSibling)
+                )
+            )
+        )) {
+            // "Call collapse(start node, start offset − 1) on the context
+            // object's Selection."
+            getSelection().collapse(startNode, startOffset - 1);
+            getActiveRange().setStart(startNode, startOffset - 1);
+
+            // "Call extend(start node, start offset) on the context object's
+            // Selection."
+            getSelection().extend(startNode, startOffset);
+            getActiveRange().setEnd(startNode, startOffset);
+
+            // "Delete the selection."
+            deleteSelection();
+
+            // "Call collapse(node, offset) on the Selection."
+            getSelection().collapse(node, offset);
+            getActiveRange().setStart(node, offset);
+            getActiveRange().collapse(true);
+
+            // "Return true."
+            return true;
+        }
+
+        // "If the child of start node with index start offset is an li or dt
+        // or dd, and that child's firstChild is an inline node, and start
+        // offset is not zero:"
+        if (isHtmlElement(startNode.childNodes[startOffset], ["li", "dt", "dd"])
+        && isInlineNode(startNode.childNodes[startOffset].firstChild)
+        && startOffset != 0) {
+            // "Let previous item be the child of start node with index start
+            // offset minus one."
+            var previousItem = startNode.childNodes[startOffset - 1];
+
+            // "If previous item's lastChild is an inline node other than a br,
+            // call createElement("br") on the context object and append the
+            // result as the last child of previous item."
+            if (isInlineNode(previousItem.lastChild)
+            && !isHtmlElement(previousItem.lastChild, "br")) {
+                previousItem.appendChild(document.createElement("br"));
+            }
+
+            // "If previous item's lastChild is an inline node, call
+            // createElement("br") on the context object and append the result
+            // as the last child of previous item."
+            if (isInlineNode(previousItem.lastChild)) {
+                previousItem.appendChild(document.createElement("br"));
+            }
+        }
+
+        // "If start node's child with index start offset is an li or dt or dd,
+        // and that child's previousSibling is also an li or dt or dd:"
+        if (isHtmlElement(startNode.childNodes[startOffset], ["li", "dt", "dd"])
+        && isHtmlElement(startNode.childNodes[startOffset].previousSibling, ["li", "dt", "dd"])) {
+            // "Call cloneRange() on the active range, and let original range
+            // be the result."
+            //
+            // We need to add it to extraRanges so it will actually get updated
+            // when moving preserving ranges.
+            var originalRange = getActiveRange().cloneRange();
+            extraRanges.push(originalRange);
+
+            // "Set start node to its child with index start offset − 1."
+            startNode = startNode.childNodes[startOffset - 1];
+
+            // "Set start offset to start node's length."
+            startOffset = getNodeLength(startNode);
+
+            // "Set node to start node's nextSibling."
+            node = startNode.nextSibling;
+
+            // "Call collapse(start node, start offset) on the context object's
+            // Selection."
+            getSelection().collapse(startNode, startOffset);
+            getActiveRange().setStart(startNode, startOffset);
+
+            // "Call extend(node, 0) on the context object's Selection."
+            getSelection().extend(node, 0);
+            getActiveRange().setEnd(node, 0);
+
+            // "Delete the selection."
+            deleteSelection();
+
+            // "Call removeAllRanges() on the context object's Selection."
+            getSelection().removeAllRanges();
+
+            // "Call addRange(original range) on the context object's
+            // Selection."
+            getSelection().addRange(originalRange);
+            getActiveRange().setStart(originalRange.startContainer, originalRange.startOffset);
+            getActiveRange().setEnd(originalRange.endContainer, originalRange.endOffset);
+
+            // "Return true."
+            extraRanges.pop();
+            return true;
+        }
+
+        // "While start node has a child with index start offset minus one:"
+        while (0 <= startOffset - 1
+        && startOffset - 1 < startNode.childNodes.length) {
+            // "If start node's child with index start offset minus one is
+            // editable and invisible, remove it from start node, then subtract
+            // one from start offset."
+            if (isEditable(startNode.childNodes[startOffset - 1])
+            && isInvisible(startNode.childNodes[startOffset - 1])) {
+                startNode.removeChild(startNode.childNodes[startOffset - 1]);
+                startOffset--;
+
+            // "Otherwise, set start node to its child with index start offset
+            // minus one, then set start offset to the length of start node."
+            } else {
+                startNode = startNode.childNodes[startOffset - 1];
+                startOffset = getNodeLength(startNode);
+            }
+        }
+
+        // "Call collapse(start node, start offset) on the context object's
+        // Selection."
+        getSelection().collapse(startNode, startOffset);
+        getActiveRange().setStart(startNode, startOffset);
+
+        // "Call extend(node, offset) on the context object's Selection."
+        getSelection().extend(node, offset);
+        getActiveRange().setEnd(node, offset);
+
+        // "Delete the selection, with direction "backward"."
+        deleteSelection({direction: "backward"});
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The formatBlock command /////
+//@{
+// "A formattable block name is "address", "dd", "div", "dt", "h1", "h2", "h3",
+// "h4", "h5", "h6", "p", or "pre"."
+var formattableBlockNames = ["address", "dd", "div", "dt", "h1", "h2", "h3",
+    "h4", "h5", "h6", "p", "pre"];
+
+commands.formatblock = {
+    preservesOverrides: true,
+    action: function(value) {
+        // "If value begins with a "<" character and ends with a ">" character,
+        // remove the first and last characters from it."
+        if (/^<.*>$/.test(value)) {
+            value = value.slice(1, -1);
+        }
+
+        // "Let value be converted to ASCII lowercase."
+        value = value.toLowerCase();
+
+        // "If value is not a formattable block name, return false."
+        if (formattableBlockNames.indexOf(value) == -1) {
+            return false;
+        }
+
+        // "Block-extend the active range, and let new range be the result."
+        var newRange = blockExtend(getActiveRange());
+
+        // "Let node list be an empty list of nodes."
+        //
+        // "For each node node contained in new range, append node to node list
+        // if it is editable, the last member of original node list (if any) is
+        // not an ancestor of node, node is either a non-list single-line
+        // container or an allowed child of "p" or a dd or dt, and node is not
+        // the ancestor of a prohibited paragraph child."
+        var nodeList = getContainedNodes(newRange, function(node) {
+            return isEditable(node)
+                && (isNonListSingleLineContainer(node)
+                || isAllowedChild(node, "p")
+                || isHtmlElement(node, ["dd", "dt"]))
+                && !getDescendants(node).some(isProhibitedParagraphChild);
+        });
+
+        // "Record the values of node list, and let values be the result."
+        var values = recordValues(nodeList);
+
+        // "For each node in node list, while node is the descendant of an
+        // editable HTML element in the same editing host, whose local name is
+        // a formattable block name, and which is not the ancestor of a
+        // prohibited paragraph child, split the parent of the one-node list
+        // consisting of node."
+        for (var i = 0; i < nodeList.length; i++) {
+            var node = nodeList[i];
+            while (getAncestors(node).some(function(ancestor) {
+                return isEditable(ancestor)
+                    && inSameEditingHost(ancestor, node)
+                    && isHtmlElement(ancestor, formattableBlockNames)
+                    && !getDescendants(ancestor).some(isProhibitedParagraphChild);
+            })) {
+                splitParent([node]);
+            }
+        }
+
+        // "Restore the values from values."
+        restoreValues(values);
+
+        // "While node list is not empty:"
+        while (nodeList.length) {
+            var sublist;
+
+            // "If the first member of node list is a single-line
+            // container:"
+            if (isSingleLineContainer(nodeList[0])) {
+                // "Let sublist be the children of the first member of node
+                // list."
+                sublist = [].slice.call(nodeList[0].childNodes);
+
+                // "Record the values of sublist, and let values be the
+                // result."
+                var values = recordValues(sublist);
+
+                // "Remove the first member of node list from its parent,
+                // preserving its descendants."
+                removePreservingDescendants(nodeList[0]);
+
+                // "Restore the values from values."
+                restoreValues(values);
+
+                // "Remove the first member from node list."
+                nodeList.shift();
+
+            // "Otherwise:"
+            } else {
+                // "Let sublist be an empty list of nodes."
+                sublist = [];
+
+                // "Remove the first member of node list and append it to
+                // sublist."
+                sublist.push(nodeList.shift());
+
+                // "While node list is not empty, and the first member of
+                // node list is the nextSibling of the last member of
+                // sublist, and the first member of node list is not a
+                // single-line container, and the last member of sublist is
+                // not a br, remove the first member of node list and
+                // append it to sublist."
+                while (nodeList.length
+                && nodeList[0] == sublist[sublist.length - 1].nextSibling
+                && !isSingleLineContainer(nodeList[0])
+                && !isHtmlElement(sublist[sublist.length - 1], "BR")) {
+                    sublist.push(nodeList.shift());
+                }
+            }
+
+            // "Wrap sublist. If value is "div" or "p", sibling criteria
+            // returns false; otherwise it returns true for an HTML element
+            // with local name value and no attributes, and false otherwise.
+            // New parent instructions return the result of running
+            // createElement(value) on the context object. Then fix disallowed
+            // ancestors of the result."
+            fixDisallowedAncestors(wrap(sublist,
+                ["div", "p"].indexOf(value) == - 1
+                    ? function(node) { return isHtmlElement(node, value) && !node.attributes.length }
+                    : function() { return false },
+                function() { return document.createElement(value) }));
+        }
+
+        // "Return true."
+        return true;
+    }, indeterm: function() {
+        // "If the active range is null, return false."
+        if (!getActiveRange()) {
+            return false;
+        }
+
+        // "Block-extend the active range, and let new range be the result."
+        var newRange = blockExtend(getActiveRange());
+
+        // "Let node list be all visible editable nodes that are contained in
+        // new range and have no children."
+        var nodeList = getAllContainedNodes(newRange, function(node) {
+            return isVisible(node)
+                && isEditable(node)
+                && !node.hasChildNodes();
+        });
+
+        // "If node list is empty, return false."
+        if (!nodeList.length) {
+            return false;
+        }
+
+        // "Let type be null."
+        var type = null;
+
+        // "For each node in node list:"
+        for (var i = 0; i < nodeList.length; i++) {
+            var node = nodeList[i];
+
+            // "While node's parent is editable and in the same editing host as
+            // node, and node is not an HTML element whose local name is a
+            // formattable block name, set node to its parent."
+            while (isEditable(node.parentNode)
+            && inSameEditingHost(node, node.parentNode)
+            && !isHtmlElement(node, formattableBlockNames)) {
+                node = node.parentNode;
+            }
+
+            // "Let current type be the empty string."
+            var currentType = "";
+
+            // "If node is an editable HTML element whose local name is a
+            // formattable block name, and node is not the ancestor of a
+            // prohibited paragraph child, set current type to node's local
+            // name."
+            if (isEditable(node)
+            && isHtmlElement(node, formattableBlockNames)
+            && !getDescendants(node).some(isProhibitedParagraphChild)) {
+                currentType = node.tagName;
+            }
+
+            // "If type is null, set type to current type."
+            if (type === null) {
+                type = currentType;
+
+            // "Otherwise, if type does not equal current type, return true."
+            } else if (type != currentType) {
+                return true;
+            }
+        }
+
+        // "Return false."
+        return false;
+    }, value: function() {
+        // "If the active range is null, return the empty string."
+        if (!getActiveRange()) {
+            return "";
+        }
+
+        // "Block-extend the active range, and let new range be the result."
+        var newRange = blockExtend(getActiveRange());
+
+        // "Let node be the first visible editable node that is contained in
+        // new range and has no children. If there is no such node, return the
+        // empty string."
+        var nodes = getAllContainedNodes(newRange, function(node) {
+            return isVisible(node)
+                && isEditable(node)
+                && !node.hasChildNodes();
+        });
+        if (!nodes.length) {
+            return "";
+        }
+        var node = nodes[0];
+
+        // "While node's parent is editable and in the same editing host as
+        // node, and node is not an HTML element whose local name is a
+        // formattable block name, set node to its parent."
+        while (isEditable(node.parentNode)
+        && inSameEditingHost(node, node.parentNode)
+        && !isHtmlElement(node, formattableBlockNames)) {
+            node = node.parentNode;
+        }
+
+        // "If node is an editable HTML element whose local name is a
+        // formattable block name, and node is not the ancestor of a prohibited
+        // paragraph child, return node's local name, converted to ASCII
+        // lowercase."
+        if (isEditable(node)
+        && isHtmlElement(node, formattableBlockNames)
+        && !getDescendants(node).some(isProhibitedParagraphChild)) {
+            return node.tagName.toLowerCase();
+        }
+
+        // "Return the empty string."
+        return "";
+    }
+};
+
+//@}
+///// The forwardDelete command /////
+//@{
+commands.forwarddelete = {
+    preservesOverrides: true,
+    action: function() {
+        // "If the active range is not collapsed, delete the selection and
+        // return true."
+        if (!getActiveRange().collapsed) {
+            deleteSelection();
+            return true;
+        }
+
+        // "Canonicalize whitespace at the active range's start."
+        canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
+
+        // "Let node and offset be the active range's start node and offset."
+        var node = getActiveRange().startContainer;
+        var offset = getActiveRange().startOffset;
+
+        // "Repeat the following steps:"
+        while (true) {
+            // "If offset is the length of node and node's nextSibling is an
+            // editable invisible node, remove node's nextSibling from its
+            // parent."
+            if (offset == getNodeLength(node)
+            && isEditable(node.nextSibling)
+            && isInvisible(node.nextSibling)) {
+                node.parentNode.removeChild(node.nextSibling);
+
+            // "Otherwise, if node has a child with index offset and that child
+            // is an editable invisible node, remove that child from node."
+            } else if (offset < node.childNodes.length
+            && isEditable(node.childNodes[offset])
+            && isInvisible(node.childNodes[offset])) {
+                node.removeChild(node.childNodes[offset]);
+
+            // "Otherwise, if offset is the length of node and node is an
+            // inline node, or if node is invisible, set offset to one plus the
+            // index of node, then set node to its parent."
+            } else if ((offset == getNodeLength(node)
+            && isInlineNode(node))
+            || isInvisible(node)) {
+                offset = 1 + getNodeIndex(node);
+                node = node.parentNode;
+
+            // "Otherwise, if node has a child with index offset and that child
+            // is neither a block node nor a br nor an img nor a collapsed
+            // block prop, set node to that child, then set offset to zero."
+            } else if (offset < node.childNodes.length
+            && !isBlockNode(node.childNodes[offset])
+            && !isHtmlElement(node.childNodes[offset], ["br", "img"])
+            && !isCollapsedBlockProp(node.childNodes[offset])) {
+                node = node.childNodes[offset];
+                offset = 0;
+
+            // "Otherwise, break from this loop."
+            } else {
+                break;
+            }
+        }
+
+        // "If node is a Text node and offset is not node's length:"
+        if (node.nodeType == Node.TEXT_NODE
+        && offset != getNodeLength(node)) {
+            // "Let end offset be offset plus one."
+            var endOffset = offset + 1;
+
+            // "While end offset is not node's length and the end offsetth
+            // element of node's data has general category M when interpreted
+            // as a Unicode code point, add one to end offset."
+            //
+            // TODO: Not even going to try handling anything beyond the most
+            // basic combining marks, since I couldn't find a good list.  I
+            // special-case a few Hebrew diacritics too to test basic coverage
+            // of non-Latin stuff.
+            while (endOffset != node.length
+            && /^[\u0300-\u036f\u0591-\u05bd\u05c1\u05c2]$/.test(node.data[endOffset])) {
+                endOffset++;
+            }
+
+            // "Call collapse(node, offset) on the context object's Selection."
+            getSelection().collapse(node, offset);
+            getActiveRange().setStart(node, offset);
+
+            // "Call extend(node, end offset) on the context object's
+            // Selection."
+            getSelection().extend(node, endOffset);
+            getActiveRange().setEnd(node, endOffset);
+
+            // "Delete the selection."
+            deleteSelection();
+
+            // "Return true."
+            return true;
+        }
+
+        // "If node is an inline node, return true."
+        if (isInlineNode(node)) {
+            return true;
+        }
+
+        // "If node has a child with index offset and that child is a br or hr
+        // or img, but is not a collapsed block prop:"
+        if (offset < node.childNodes.length
+        && isHtmlElement(node.childNodes[offset], ["br", "hr", "img"])
+        && !isCollapsedBlockProp(node.childNodes[offset])) {
+            // "Call collapse(node, offset) on the context object's Selection."
+            getSelection().collapse(node, offset);
+            getActiveRange().setStart(node, offset);
+
+            // "Call extend(node, offset + 1) on the context object's
+            // Selection."
+            getSelection().extend(node, offset + 1);
+            getActiveRange().setEnd(node, offset + 1);
+
+            // "Delete the selection."
+            deleteSelection();
+
+            // "Return true."
+            return true;
+        }
+
+        // "Let end node equal node and let end offset equal offset."
+        var endNode = node;
+        var endOffset = offset;
+
+        // "If end node has a child with index end offset, and that child is a
+        // collapsed block prop, add one to end offset."
+        if (endOffset < endNode.childNodes.length
+        && isCollapsedBlockProp(endNode.childNodes[endOffset])) {
+            endOffset++;
+        }
+
+        // "Repeat the following steps:"
+        while (true) {
+            // "If end offset is the length of end node, set end offset to one
+            // plus the index of end node and then set end node to its parent."
+            if (endOffset == getNodeLength(endNode)) {
+                endOffset = 1 + getNodeIndex(endNode);
+                endNode = endNode.parentNode;
+
+            // "Otherwise, if end node has a an editable invisible child with
+            // index end offset, remove it from end node."
+            } else if (endOffset < endNode.childNodes.length
+            && isEditable(endNode.childNodes[endOffset])
+            && isInvisible(endNode.childNodes[endOffset])) {
+                endNode.removeChild(endNode.childNodes[endOffset]);
+
+            // "Otherwise, break from this loop."
+            } else {
+                break;
+            }
+        }
+
+        // "If the child of end node with index end offset minus one is a
+        // table, return true."
+        if (isHtmlElement(endNode.childNodes[endOffset - 1], "table")) {
+            return true;
+        }
+
+        // "If the child of end node with index end offset is a table:"
+        if (isHtmlElement(endNode.childNodes[endOffset], "table")) {
+            // "Call collapse(end node, end offset) on the context object's
+            // Selection."
+            getSelection().collapse(endNode, endOffset);
+            getActiveRange().setStart(endNode, endOffset);
+
+            // "Call extend(end node, end offset + 1) on the context object's
+            // Selection."
+            getSelection().extend(endNode, endOffset + 1);
+            getActiveRange().setEnd(endNode, endOffset + 1);
+
+            // "Return true."
+            return true;
+        }
+
+        // "If offset is the length of node, and the child of end node with
+        // index end offset is an hr or br:"
+        if (offset == getNodeLength(node)
+        && isHtmlElement(endNode.childNodes[endOffset], ["br", "hr"])) {
+            // "Call collapse(end node, end offset) on the context object's
+            // Selection."
+            getSelection().collapse(endNode, endOffset);
+            getActiveRange().setStart(endNode, endOffset);
+
+            // "Call extend(end node, end offset + 1) on the context object's
+            // Selection."
+            getSelection().extend(endNode, endOffset + 1);
+            getActiveRange().setEnd(endNode, endOffset + 1);
+
+            // "Delete the selection."
+            deleteSelection();
+
+            // "Call collapse(node, offset) on the Selection."
+            getSelection().collapse(node, offset);
+            getActiveRange().setStart(node, offset);
+            getActiveRange().collapse(true);
+
+            // "Return true."
+            return true;
+        }
+
+        // "While end node has a child with index end offset:"
+        while (endOffset < endNode.childNodes.length) {
+            // "If end node's child with index end offset is editable and
+            // invisible, remove it from end node."
+            if (isEditable(endNode.childNodes[endOffset])
+            && isInvisible(endNode.childNodes[endOffset])) {
+                endNode.removeChild(endNode.childNodes[endOffset]);
+
+            // "Otherwise, set end node to its child with index end offset and
+            // set end offset to zero."
+            } else {
+                endNode = endNode.childNodes[endOffset];
+                endOffset = 0;
+            }
+        }
+
+        // "Call collapse(node, offset) on the context object's Selection."
+        getSelection().collapse(node, offset);
+        getActiveRange().setStart(node, offset);
+
+        // "Call extend(end node, end offset) on the context object's
+        // Selection."
+        getSelection().extend(endNode, endOffset);
+        getActiveRange().setEnd(endNode, endOffset);
+
+        // "Delete the selection."
+        deleteSelection();
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The indent command /////
+//@{
+commands.indent = {
+    preservesOverrides: true,
+    action: function() {
+        // "Let items be a list of all lis that are ancestor containers of the
+        // active range's start and/or end node."
+        //
+        // Has to be in tree order, remember!
+        var items = [];
+        for (var node = getActiveRange().endContainer; node != getActiveRange().commonAncestorContainer; node = node.parentNode) {
+            if (isHtmlElement(node, "LI")) {
+                items.unshift(node);
+            }
+        }
+        for (var node = getActiveRange().startContainer; node != getActiveRange().commonAncestorContainer; node = node.parentNode) {
+            if (isHtmlElement(node, "LI")) {
+                items.unshift(node);
+            }
+        }
+        for (var node = getActiveRange().commonAncestorContainer; node; node = node.parentNode) {
+            if (isHtmlElement(node, "LI")) {
+                items.unshift(node);
+            }
+        }
+
+        // "For each item in items, normalize sublists of item."
+        for (var i = 0; i < items.length; i++) {
+            normalizeSublists(items[i]);
+        }
+
+        // "Block-extend the active range, and let new range be the result."
+        var newRange = blockExtend(getActiveRange());
+
+        // "Let node list be a list of nodes, initially empty."
+        var nodeList = [];
+
+        // "For each node node contained in new range, if node is editable and
+        // is an allowed child of "div" or "ol" and if the last member of node
+        // list (if any) is not an ancestor of node, append node to node list."
+        nodeList = getContainedNodes(newRange, function(node) {
+            return isEditable(node)
+                && (isAllowedChild(node, "div")
+                || isAllowedChild(node, "ol"));
+        });
+
+        // "If the first visible member of node list is an li whose parent is
+        // an ol or ul:"
+        if (isHtmlElement(nodeList.filter(isVisible)[0], "li")
+        && isHtmlElement(nodeList.filter(isVisible)[0].parentNode, ["ol", "ul"])) {
+            // "Let sibling be node list's first visible member's
+            // previousSibling."
+            var sibling = nodeList.filter(isVisible)[0].previousSibling;
+
+            // "While sibling is invisible, set sibling to its
+            // previousSibling."
+            while (isInvisible(sibling)) {
+                sibling = sibling.previousSibling;
+            }
+
+            // "If sibling is an li, normalize sublists of sibling."
+            if (isHtmlElement(sibling, "li")) {
+                normalizeSublists(sibling);
+            }
+        }
+
+        // "While node list is not empty:"
+        while (nodeList.length) {
+            // "Let sublist be a list of nodes, initially empty."
+            var sublist = [];
+
+            // "Remove the first member of node list and append it to sublist."
+            sublist.push(nodeList.shift());
+
+            // "While the first member of node list is the nextSibling of the
+            // last member of sublist, remove the first member of node list and
+            // append it to sublist."
+            while (nodeList.length
+            && nodeList[0] == sublist[sublist.length - 1].nextSibling) {
+                sublist.push(nodeList.shift());
+            }
+
+            // "Indent sublist."
+            indentNodes(sublist);
+        }
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The insertHorizontalRule command /////
+//@{
+commands.inserthorizontalrule = {
+    preservesOverrides: true,
+    action: function() {
+        // "Let start node, start offset, end node, and end offset be the
+        // active range's start and end nodes and offsets."
+        var startNode = getActiveRange().startContainer;
+        var startOffset = getActiveRange().startOffset;
+        var endNode = getActiveRange().endContainer;
+        var endOffset = getActiveRange().endOffset;
+
+        // "While start offset is 0 and start node's parent is not null, set
+        // start offset to start node's index, then set start node to its
+        // parent."
+        while (startOffset == 0
+        && startNode.parentNode) {
+            startOffset = getNodeIndex(startNode);
+            startNode = startNode.parentNode;
+        }
+
+        // "While end offset is end node's length, and end node's parent is not
+        // null, set end offset to one plus end node's index, then set end node
+        // to its parent."
+        while (endOffset == getNodeLength(endNode)
+        && endNode.parentNode) {
+            endOffset = 1 + getNodeIndex(endNode);
+            endNode = endNode.parentNode;
+        }
+
+        // "Call collapse(start node, start offset) on the context object's
+        // Selection."
+        getSelection().collapse(startNode, startOffset);
+        getActiveRange().setStart(startNode, startOffset);
+
+        // "Call extend(end node, end offset) on the context object's
+        // Selection."
+        getSelection().extend(endNode, endOffset);
+        getActiveRange().setEnd(endNode, endOffset);
+
+        // "Delete the selection, with block merging false."
+        deleteSelection({blockMerging: false});
+
+        // "If the active range's start node is neither editable nor an editing
+        // host, return true."
+        if (!isEditable(getActiveRange().startContainer)
+        && !isEditingHost(getActiveRange().startContainer)) {
+            return true;
+        }
+
+        // "If the active range's start node is a Text node and its start
+        // offset is zero, call collapse() on the context object's Selection,
+        // with first argument the active range's start node's parent and
+        // second argument the active range's start node's index."
+        if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
+        && getActiveRange().startOffset == 0) {
+            var newNode = getActiveRange().startContainer.parentNode;
+            var newOffset = getNodeIndex(getActiveRange().startContainer);
+            getSelection().collapse(newNode, newOffset);
+            getActiveRange().setStart(newNode, newOffset);
+            getActiveRange().collapse(true);
+        }
+
+        // "If the active range's start node is a Text node and its start
+        // offset is the length of its start node, call collapse() on the
+        // context object's Selection, with first argument the active range's
+        // start node's parent, and the second argument one plus the active
+        // range's start node's index."
+        if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
+        && getActiveRange().startOffset == getNodeLength(getActiveRange().startContainer)) {
+            var newNode = getActiveRange().startContainer.parentNode;
+            var newOffset = 1 + getNodeIndex(getActiveRange().startContainer);
+            getSelection().collapse(newNode, newOffset);
+            getActiveRange().setStart(newNode, newOffset);
+            getActiveRange().collapse(true);
+        }
+
+        // "Let hr be the result of calling createElement("hr") on the
+        // context object."
+        var hr = document.createElement("hr");
+
+        // "Run insertNode(hr) on the active range."
+        getActiveRange().insertNode(hr);
+
+        // "Fix disallowed ancestors of hr."
+        fixDisallowedAncestors(hr);
+
+        // "Run collapse() on the context object's Selection, with first
+        // argument hr's parent and the second argument equal to one plus hr's
+        // index."
+        getSelection().collapse(hr.parentNode, 1 + getNodeIndex(hr));
+        getActiveRange().setStart(hr.parentNode, 1 + getNodeIndex(hr));
+        getActiveRange().collapse(true);
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The insertHTML command /////
+//@{
+commands.inserthtml = {
+    preservesOverrides: true,
+    action: function(value) {
+        // "Delete the selection."
+        deleteSelection();
+
+        // "If the active range's start node is neither editable nor an editing
+        // host, return true."
+        if (!isEditable(getActiveRange().startContainer)
+        && !isEditingHost(getActiveRange().startContainer)) {
+            return true;
+        }
+
+        // "Let frag be the result of calling createContextualFragment(value)
+        // on the active range."
+        var frag = getActiveRange().createContextualFragment(value);
+
+        // "Let last child be the lastChild of frag."
+        var lastChild = frag.lastChild;
+
+        // "If last child is null, return true."
+        if (!lastChild) {
+            return true;
+        }
+
+        // "Let descendants be all descendants of frag."
+        var descendants = getDescendants(frag);
+
+        // "If the active range's start node is a block node:"
+        if (isBlockNode(getActiveRange().startContainer)) {
+            // "Let collapsed block props be all editable collapsed block prop
+            // children of the active range's start node that have index
+            // greater than or equal to the active range's start offset."
+            //
+            // "For each node in collapsed block props, remove node from its
+            // parent."
+            [].filter.call(getActiveRange().startContainer.childNodes, function(node) {
+                return isEditable(node)
+                    && isCollapsedBlockProp(node)
+                    && getNodeIndex(node) >= getActiveRange().startOffset;
+            }).forEach(function(node) {
+                node.parentNode.removeChild(node);
+            });
+        }
+
+        // "Call insertNode(frag) on the active range."
+        getActiveRange().insertNode(frag);
+
+        // "If the active range's start node is a block node with no visible
+        // children, call createElement("br") on the context object and append
+        // the result as the last child of the active range's start node."
+        if (isBlockNode(getActiveRange().startContainer)
+        && ![].some.call(getActiveRange().startContainer.childNodes, isVisible)) {
+            getActiveRange().startContainer.appendChild(document.createElement("br"));
+        }
+
+        // "Call collapse() on the context object's Selection, with last
+        // child's parent as the first argument and one plus its index as the
+        // second."
+        getActiveRange().setStart(lastChild.parentNode, 1 + getNodeIndex(lastChild));
+        getActiveRange().setEnd(lastChild.parentNode, 1 + getNodeIndex(lastChild));
+
+        // "Fix disallowed ancestors of each member of descendants."
+        for (var i = 0; i < descendants.length; i++) {
+            fixDisallowedAncestors(descendants[i]);
+        }
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The insertImage command /////
+//@{
+commands.insertimage = {
+    preservesOverrides: true,
+    action: function(value) {
+        // "If value is the empty string, return false."
+        if (value === "") {
+            return false;
+        }
+
+        // "Delete the selection, with strip wrappers false."
+        deleteSelection({stripWrappers: false});
+
+        // "Let range be the active range."
+        var range = getActiveRange();
+
+        // "If the active range's start node is neither editable nor an editing
+        // host, return true."
+        if (!isEditable(getActiveRange().startContainer)
+        && !isEditingHost(getActiveRange().startContainer)) {
+            return true;
+        }
+
+        // "If range's start node is a block node whose sole child is a br, and
+        // its start offset is 0, remove its start node's child from it."
+        if (isBlockNode(range.startContainer)
+        && range.startContainer.childNodes.length == 1
+        && isHtmlElement(range.startContainer.firstChild, "br")
+        && range.startOffset == 0) {
+            range.startContainer.removeChild(range.startContainer.firstChild);
+        }
+
+        // "Let img be the result of calling createElement("img") on the
+        // context object."
+        var img = document.createElement("img");
+
+        // "Run setAttribute("src", value) on img."
+        img.setAttribute("src", value);
+
+        // "Run insertNode(img) on the range."
+        range.insertNode(img);
+
+        // "Run collapse() on the Selection, with first argument equal to the
+        // parent of img and the second argument equal to one plus the index of
+        // img."
+        //
+        // Not everyone actually supports collapse(), so we do it manually
+        // instead.  Also, we need to modify the actual range we're given as
+        // well, for the sake of autoimplementation.html's range-filling-in.
+        range.setStart(img.parentNode, 1 + getNodeIndex(img));
+        range.setEnd(img.parentNode, 1 + getNodeIndex(img));
+        getSelection().removeAllRanges();
+        getSelection().addRange(range);
+
+        // IE adds width and height attributes for some reason, so remove those
+        // to actually do what the spec says.
+        img.removeAttribute("width");
+        img.removeAttribute("height");
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The insertLineBreak command /////
+//@{
+commands.insertlinebreak = {
+    preservesOverrides: true,
+    action: function(value) {
+        // "Delete the selection, with strip wrappers false."
+        deleteSelection({stripWrappers: false});
+
+        // "If the active range's start node is neither editable nor an editing
+        // host, return true."
+        if (!isEditable(getActiveRange().startContainer)
+        && !isEditingHost(getActiveRange().startContainer)) {
+            return true;
+        }
+
+        // "If the active range's start node is an Element, and "br" is not an
+        // allowed child of it, return true."
+        if (getActiveRange().startContainer.nodeType == Node.ELEMENT_NODE
+        && !isAllowedChild("br", getActiveRange().startContainer)) {
+            return true;
+        }
+
+        // "If the active range's start node is not an Element, and "br" is not
+        // an allowed child of the active range's start node's parent, return
+        // true."
+        if (getActiveRange().startContainer.nodeType != Node.ELEMENT_NODE
+        && !isAllowedChild("br", getActiveRange().startContainer.parentNode)) {
+            return true;
+        }
+
+        // "If the active range's start node is a Text node and its start
+        // offset is zero, call collapse() on the context object's Selection,
+        // with first argument equal to the active range's start node's parent
+        // and second argument equal to the active range's start node's index."
+        if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
+        && getActiveRange().startOffset == 0) {
+            var newNode = getActiveRange().startContainer.parentNode;
+            var newOffset = getNodeIndex(getActiveRange().startContainer);
+            getSelection().collapse(newNode, newOffset);
+            getActiveRange().setStart(newNode, newOffset);
+            getActiveRange().setEnd(newNode, newOffset);
+        }
+
+        // "If the active range's start node is a Text node and its start
+        // offset is the length of its start node, call collapse() on the
+        // context object's Selection, with first argument equal to the active
+        // range's start node's parent and second argument equal to one plus
+        // the active range's start node's index."
+        if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
+        && getActiveRange().startOffset == getNodeLength(getActiveRange().startContainer)) {
+            var newNode = getActiveRange().startContainer.parentNode;
+            var newOffset = 1 + getNodeIndex(getActiveRange().startContainer);
+            getSelection().collapse(newNode, newOffset);
+            getActiveRange().setStart(newNode, newOffset);
+            getActiveRange().setEnd(newNode, newOffset);
+        }
+
+        // "Let br be the result of calling createElement("br") on the context
+        // object."
+        var br = document.createElement("br");
+
+        // "Call insertNode(br) on the active range."
+        getActiveRange().insertNode(br);
+
+        // "Call collapse() on the context object's Selection, with br's parent
+        // as the first argument and one plus br's index as the second
+        // argument."
+        getSelection().collapse(br.parentNode, 1 + getNodeIndex(br));
+        getActiveRange().setStart(br.parentNode, 1 + getNodeIndex(br));
+        getActiveRange().setEnd(br.parentNode, 1 + getNodeIndex(br));
+
+        // "If br is a collapsed line break, call createElement("br") on the
+        // context object and let extra br be the result, then call
+        // insertNode(extra br) on the active range."
+        if (isCollapsedLineBreak(br)) {
+            getActiveRange().insertNode(document.createElement("br"));
+
+            // Compensate for nonstandard implementations of insertNode
+            getSelection().collapse(br.parentNode, 1 + getNodeIndex(br));
+            getActiveRange().setStart(br.parentNode, 1 + getNodeIndex(br));
+            getActiveRange().setEnd(br.parentNode, 1 + getNodeIndex(br));
+        }
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The insertOrderedList command /////
+//@{
+commands.insertorderedlist = {
+    preservesOverrides: true,
+    // "Toggle lists with tag name "ol", then return true."
+    action: function() { toggleLists("ol"); return true },
+    // "True if the selection's list state is "mixed" or "mixed ol", false
+    // otherwise."
+    indeterm: function() { return /^mixed( ol)?$/.test(getSelectionListState()) },
+    // "True if the selection's list state is "ol", false otherwise."
+    state: function() { return getSelectionListState() == "ol" },
+};
+
+//@}
+///// The insertParagraph command /////
+//@{
+commands.insertparagraph = {
+    preservesOverrides: true,
+    action: function() {
+        // "Delete the selection."
+        deleteSelection();
+
+        // "If the active range's start node is neither editable nor an editing
+        // host, return true."
+        if (!isEditable(getActiveRange().startContainer)
+        && !isEditingHost(getActiveRange().startContainer)) {
+            return true;
+        }
+
+        // "Let node and offset be the active range's start node and offset."
+        var node = getActiveRange().startContainer;
+        var offset = getActiveRange().startOffset;
+
+        // "If node is a Text node, and offset is neither 0 nor the length of
+        // node, call splitText(offset) on node."
+        if (node.nodeType == Node.TEXT_NODE
+        && offset != 0
+        && offset != getNodeLength(node)) {
+            node.splitText(offset);
+        }
+
+        // "If node is a Text node and offset is its length, set offset to one
+        // plus the index of node, then set node to its parent."
+        if (node.nodeType == Node.TEXT_NODE
+        && offset == getNodeLength(node)) {
+            offset = 1 + getNodeIndex(node);
+            node = node.parentNode;
+        }
+
+        // "If node is a Text or Comment node, set offset to the index of node,
+        // then set node to its parent."
+        if (node.nodeType == Node.TEXT_NODE
+        || node.nodeType == Node.COMMENT_NODE) {
+            offset = getNodeIndex(node);
+            node = node.parentNode;
+        }
+
+        // "Call collapse(node, offset) on the context object's Selection."
+        getSelection().collapse(node, offset);
+        getActiveRange().setStart(node, offset);
+        getActiveRange().setEnd(node, offset);
+
+        // "Let container equal node."
+        var container = node;
+
+        // "While container is not a single-line container, and container's
+        // parent is editable and in the same editing host as node, set
+        // container to its parent."
+        while (!isSingleLineContainer(container)
+        && isEditable(container.parentNode)
+        && inSameEditingHost(node, container.parentNode)) {
+            container = container.parentNode;
+        }
+
+        // "If container is an editable single-line container in the same
+        // editing host as node, and its local name is "p" or "div":"
+        if (isEditable(container)
+        && isSingleLineContainer(container)
+        && inSameEditingHost(node, container.parentNode)
+        && (container.tagName == "P" || container.tagName == "DIV")) {
+            // "Let outer container equal container."
+            var outerContainer = container;
+
+            // "While outer container is not a dd or dt or li, and outer
+            // container's parent is editable, set outer container to its
+            // parent."
+            while (!isHtmlElement(outerContainer, ["dd", "dt", "li"])
+            && isEditable(outerContainer.parentNode)) {
+                outerContainer = outerContainer.parentNode;
+            }
+
+            // "If outer container is a dd or dt or li, set container to outer
+            // container."
+            if (isHtmlElement(outerContainer, ["dd", "dt", "li"])) {
+                container = outerContainer;
+            }
+        }
+
+        // "If container is not editable or not in the same editing host as
+        // node or is not a single-line container:"
+        if (!isEditable(container)
+        || !inSameEditingHost(container, node)
+        || !isSingleLineContainer(container)) {
+            // "Let tag be the default single-line container name."
+            var tag = defaultSingleLineContainerName;
+
+            // "Block-extend the active range, and let new range be the
+            // result."
+            var newRange = blockExtend(getActiveRange());
+
+            // "Let node list be a list of nodes, initially empty."
+            //
+            // "Append to node list the first node in tree order that is
+            // contained in new range and is an allowed child of "p", if any."
+            var nodeList = getContainedNodes(newRange, function(node) { return isAllowedChild(node, "p") })
+                .slice(0, 1);
+
+            // "If node list is empty:"
+            if (!nodeList.length) {
+                // "If tag is not an allowed child of the active range's start
+                // node, return true."
+                if (!isAllowedChild(tag, getActiveRange().startContainer)) {
+                    return true;
+                }
+
+                // "Set container to the result of calling createElement(tag)
+                // on the context object."
+                container = document.createElement(tag);
+
+                // "Call insertNode(container) on the active range."
+                getActiveRange().insertNode(container);
+
+                // "Call createElement("br") on the context object, and append
+                // the result as the last child of container."
+                container.appendChild(document.createElement("br"));
+
+                // "Call collapse(container, 0) on the context object's
+                // Selection."
+                getSelection().collapse(container, 0);
+                getActiveRange().setStart(container, 0);
+                getActiveRange().setEnd(container, 0);
+
+                // "Return true."
+                return true;
+            }
+
+            // "While the nextSibling of the last member of node list is not
+            // null and is an allowed child of "p", append it to node list."
+            while (nodeList[nodeList.length - 1].nextSibling
+            && isAllowedChild(nodeList[nodeList.length - 1].nextSibling, "p")) {
+                nodeList.push(nodeList[nodeList.length - 1].nextSibling);
+            }
+
+            // "Wrap node list, with sibling criteria returning false and new
+            // parent instructions returning the result of calling
+            // createElement(tag) on the context object. Set container to the
+            // result."
+            container = wrap(nodeList,
+                function() { return false },
+                function() { return document.createElement(tag) }
+            );
+        }
+
+        // "If container's local name is "address", "listing", or "pre":"
+        if (container.tagName == "ADDRESS"
+        || container.tagName == "LISTING"
+        || container.tagName == "PRE") {
+            // "Let br be the result of calling createElement("br") on the
+            // context object."
+            var br = document.createElement("br");
+
+            // "Call insertNode(br) on the active range."
+            getActiveRange().insertNode(br);
+
+            // "Call collapse(node, offset + 1) on the context object's
+            // Selection."
+            getSelection().collapse(node, offset + 1);
+            getActiveRange().setStart(node, offset + 1);
+            getActiveRange().setEnd(node, offset + 1);
+
+            // "If br is the last descendant of container, let br be the result
+            // of calling createElement("br") on the context object, then call
+            // insertNode(br) on the active range."
+            //
+            // Work around browser bugs: some browsers select the
+            // newly-inserted node, not per spec.
+            if (!isDescendant(nextNode(br), container)) {
+                getActiveRange().insertNode(document.createElement("br"));
+                getSelection().collapse(node, offset + 1);
+                getActiveRange().setEnd(node, offset + 1);
+            }
+
+            // "Return true."
+            return true;
+        }
+
+        // "If container's local name is "li", "dt", or "dd"; and either it has
+        // no children or it has a single child and that child is a br:"
+        if (["LI", "DT", "DD"].indexOf(container.tagName) != -1
+        && (!container.hasChildNodes()
+        || (container.childNodes.length == 1
+        && isHtmlElement(container.firstChild, "br")))) {
+            // "Split the parent of the one-node list consisting of container."
+            splitParent([container]);
+
+            // "If container has no children, call createElement("br") on the
+            // context object and append the result as the last child of
+            // container."
+            if (!container.hasChildNodes()) {
+                container.appendChild(document.createElement("br"));
+            }
+
+            // "If container is a dd or dt, and it is not an allowed child of
+            // any of its ancestors in the same editing host, set the tag name
+            // of container to the default single-line container name and let
+            // container be the result."
+            if (isHtmlElement(container, ["dd", "dt"])
+            && getAncestors(container).every(function(ancestor) {
+                return !inSameEditingHost(container, ancestor)
+                    || !isAllowedChild(container, ancestor)
+            })) {
+                container = setTagName(container, defaultSingleLineContainerName);
+            }
+
+            // "Fix disallowed ancestors of container."
+            fixDisallowedAncestors(container);
+
+            // "Return true."
+            return true;
+        }
+
+        // "Let new line range be a new range whose start is the same as
+        // the active range's, and whose end is (container, length of
+        // container)."
+        var newLineRange = document.createRange();
+        newLineRange.setStart(getActiveRange().startContainer, getActiveRange().startOffset);
+        newLineRange.setEnd(container, getNodeLength(container));
+
+        // "While new line range's start offset is zero and its start node is
+        // not a prohibited paragraph child, set its start to (parent of start
+        // node, index of start node)."
+        while (newLineRange.startOffset == 0
+        && !isProhibitedParagraphChild(newLineRange.startContainer)) {
+            newLineRange.setStart(newLineRange.startContainer.parentNode, getNodeIndex(newLineRange.startContainer));
+        }
+
+        // "While new line range's start offset is the length of its start node
+        // and its start node is not a prohibited paragraph child, set its
+        // start to (parent of start node, 1 + index of start node)."
+        while (newLineRange.startOffset == getNodeLength(newLineRange.startContainer)
+        && !isProhibitedParagraphChild(newLineRange.startContainer)) {
+            newLineRange.setStart(newLineRange.startContainer.parentNode, 1 + getNodeIndex(newLineRange.startContainer));
+        }
+
+        // "Let end of line be true if new line range contains either nothing
+        // or a single br, and false otherwise."
+        var containedInNewLineRange = getContainedNodes(newLineRange);
+        var endOfLine = !containedInNewLineRange.length
+            || (containedInNewLineRange.length == 1
+            && isHtmlElement(containedInNewLineRange[0], "br"));
+
+        // "If the local name of container is "h1", "h2", "h3", "h4", "h5", or
+        // "h6", and end of line is true, let new container name be the default
+        // single-line container name."
+        var newContainerName;
+        if (/^H[1-6]$/.test(container.tagName)
+        && endOfLine) {
+            newContainerName = defaultSingleLineContainerName;
+
+        // "Otherwise, if the local name of container is "dt" and end of line
+        // is true, let new container name be "dd"."
+        } else if (container.tagName == "DT"
+        && endOfLine) {
+            newContainerName = "dd";
+
+        // "Otherwise, if the local name of container is "dd" and end of line
+        // is true, let new container name be "dt"."
+        } else if (container.tagName == "DD"
+        && endOfLine) {
+            newContainerName = "dt";
+
+        // "Otherwise, let new container name be the local name of container."
+        } else {
+            newContainerName = container.tagName.toLowerCase();
+        }
+
+        // "Let new container be the result of calling createElement(new
+        // container name) on the context object."
+        var newContainer = document.createElement(newContainerName);
+
+        // "Copy all attributes of container to new container."
+        for (var i = 0; i < container.attributes.length; i++) {
+            newContainer.setAttributeNS(container.attributes[i].namespaceURI, container.attributes[i].name, container.attributes[i].value);
+        }
+
+        // "If new container has an id attribute, unset it."
+        newContainer.removeAttribute("id");
+
+        // "Insert new container into the parent of container immediately after
+        // container."
+        container.parentNode.insertBefore(newContainer, container.nextSibling);
+
+        // "Let contained nodes be all nodes contained in new line range."
+        var containedNodes = getAllContainedNodes(newLineRange);
+
+        // "Let frag be the result of calling extractContents() on new line
+        // range."
+        var frag = newLineRange.extractContents();
+
+        // "Unset the id attribute (if any) of each Element descendant of frag
+        // that is not in contained nodes."
+        var descendants = getDescendants(frag);
+        for (var i = 0; i < descendants.length; i++) {
+            if (descendants[i].nodeType == Node.ELEMENT_NODE
+            && containedNodes.indexOf(descendants[i]) == -1) {
+                descendants[i].removeAttribute("id");
+            }
+        }
+
+        // "Call appendChild(frag) on new container."
+        newContainer.appendChild(frag);
+
+        // "While container's lastChild is a prohibited paragraph child, set
+        // container to its lastChild."
+        while (isProhibitedParagraphChild(container.lastChild)) {
+            container = container.lastChild;
+        }
+
+        // "While new container's lastChild is a prohibited paragraph child,
+        // set new container to its lastChild."
+        while (isProhibitedParagraphChild(newContainer.lastChild)) {
+            newContainer = newContainer.lastChild;
+        }
+
+        // "If container has no visible children, call createElement("br") on
+        // the context object, and append the result as the last child of
+        // container."
+        if (![].some.call(container.childNodes, isVisible)) {
+            container.appendChild(document.createElement("br"));
+        }
+
+        // "If new container has no visible children, call createElement("br")
+        // on the context object, and append the result as the last child of
+        // new container."
+        if (![].some.call(newContainer.childNodes, isVisible)) {
+            newContainer.appendChild(document.createElement("br"));
+        }
+
+        // "Call collapse(new container, 0) on the context object's Selection."
+        getSelection().collapse(newContainer, 0);
+        getActiveRange().setStart(newContainer, 0);
+        getActiveRange().setEnd(newContainer, 0);
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The insertText command /////
+//@{
+commands.inserttext = {
+    action: function(value) {
+        // "Delete the selection, with strip wrappers false."
+        deleteSelection({stripWrappers: false});
+
+        // "If the active range's start node is neither editable nor an editing
+        // host, return true."
+        if (!isEditable(getActiveRange().startContainer)
+        && !isEditingHost(getActiveRange().startContainer)) {
+            return true;
+        }
+
+        // "If value's length is greater than one:"
+        if (value.length > 1) {
+            // "For each element el in value, take the action for the
+            // insertText command, with value equal to el."
+            for (var i = 0; i < value.length; i++) {
+                commands.inserttext.action(value[i]);
+            }
+
+            // "Return true."
+            return true;
+        }
+
+        // "If value is the empty string, return true."
+        if (value == "") {
+            return true;
+        }
+
+        // "If value is a newline (U+00A0), take the action for the
+        // insertParagraph command and return true."
+        if (value == "\n") {
+            commands.insertparagraph.action();
+            return true;
+        }
+
+        // "Let node and offset be the active range's start node and offset."
+        var node = getActiveRange().startContainer;
+        var offset = getActiveRange().startOffset;
+
+        // "If node has a child whose index is offset − 1, and that child is a
+        // Text node, set node to that child, then set offset to node's
+        // length."
+        if (0 <= offset - 1
+        && offset - 1 < node.childNodes.length
+        && node.childNodes[offset - 1].nodeType == Node.TEXT_NODE) {
+            node = node.childNodes[offset - 1];
+            offset = getNodeLength(node);
+        }
+
+        // "If node has a child whose index is offset, and that child is a Text
+        // node, set node to that child, then set offset to zero."
+        if (0 <= offset
+        && offset < node.childNodes.length
+        && node.childNodes[offset].nodeType == Node.TEXT_NODE) {
+            node = node.childNodes[offset];
+            offset = 0;
+        }
+
+        // "Record current overrides, and let overrides be the result."
+        var overrides = recordCurrentOverrides();
+
+        // "Call collapse(node, offset) on the context object's Selection."
+        getSelection().collapse(node, offset);
+        getActiveRange().setStart(node, offset);
+        getActiveRange().setEnd(node, offset);
+
+        // "Canonicalize whitespace at (node, offset)."
+        canonicalizeWhitespace(node, offset);
+
+        // "Let (node, offset) be the active range's start."
+        node = getActiveRange().startContainer;
+        offset = getActiveRange().startOffset;
+
+        // "If node is a Text node:"
+        if (node.nodeType == Node.TEXT_NODE) {
+            // "Call insertData(offset, value) on node."
+            node.insertData(offset, value);
+
+            // "Call collapse(node, offset) on the context object's Selection."
+            getSelection().collapse(node, offset);
+            getActiveRange().setStart(node, offset);
+
+            // "Call extend(node, offset + 1) on the context object's
+            // Selection."
+            //
+            // Work around WebKit bug: the extend() can throw if the text we're
+            // adding is trailing whitespace.
+            try { getSelection().extend(node, offset + 1); } catch(e) {}
+            getActiveRange().setEnd(node, offset + 1);
+
+        // "Otherwise:"
+        } else {
+            // "If node has only one child, which is a collapsed line break,
+            // remove its child from it."
+            //
+            // FIXME: IE incorrectly returns false here instead of true
+            // sometimes?
+            if (node.childNodes.length == 1
+            && isCollapsedLineBreak(node.firstChild)) {
+                node.removeChild(node.firstChild);
+            }
+
+            // "Let text be the result of calling createTextNode(value) on the
+            // context object."
+            var text = document.createTextNode(value);
+
+            // "Call insertNode(text) on the active range."
+            getActiveRange().insertNode(text);
+
+            // "Call collapse(text, 0) on the context object's Selection."
+            getSelection().collapse(text, 0);
+            getActiveRange().setStart(text, 0);
+
+            // "Call extend(text, 1) on the context object's Selection."
+            getSelection().extend(text, 1);
+            getActiveRange().setEnd(text, 1);
+        }
+
+        // "Restore states and values from overrides."
+        restoreStatesAndValues(overrides);
+
+        // "Canonicalize whitespace at the active range's start, with fix
+        // collapsed space false."
+        canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);
+
+        // "Canonicalize whitespace at the active range's end, with fix
+        // collapsed space false."
+        canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);
+
+        // "If value is a space character, autolink the active range's start."
+        if (/^[ \t\n\f\r]$/.test(value)) {
+            autolink(getActiveRange().startContainer, getActiveRange().startOffset);
+        }
+
+        // "Call collapseToEnd() on the context object's Selection."
+        //
+        // Work around WebKit bug: sometimes it blows up the selection and
+        // throws, which we don't want.
+        try { getSelection().collapseToEnd(); } catch(e) {}
+        getActiveRange().collapse(false);
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The insertUnorderedList command /////
+//@{
+commands.insertunorderedlist = {
+    preservesOverrides: true,
+    // "Toggle lists with tag name "ul", then return true."
+    action: function() { toggleLists("ul"); return true },
+    // "True if the selection's list state is "mixed" or "mixed ul", false
+    // otherwise."
+    indeterm: function() { return /^mixed( ul)?$/.test(getSelectionListState()) },
+    // "True if the selection's list state is "ul", false otherwise."
+    state: function() { return getSelectionListState() == "ul" },
+};
+
+//@}
+///// The justifyCenter command /////
+//@{
+commands.justifycenter = {
+    preservesOverrides: true,
+    // "Justify the selection with alignment "center", then return true."
+    action: function() { justifySelection("center"); return true },
+    indeterm: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if among visible editable nodes that
+        // are contained in the result and have no children, at least one has
+        // alignment value "center" and at least one does not. Otherwise return
+        // false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.some(function(node) { return getAlignmentValue(node) == "center" })
+            && nodes.some(function(node) { return getAlignmentValue(node) != "center" });
+    }, state: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if there is at least one visible
+        // editable node that is contained in the result and has no children,
+        // and all such nodes have alignment value "center".  Otherwise return
+        // false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.length
+            && nodes.every(function(node) { return getAlignmentValue(node) == "center" });
+    }, value: function() {
+        // "Return the empty string if the active range is null.  Otherwise,
+        // block-extend the active range, and return the alignment value of the
+        // first visible editable node that is contained in the result and has
+        // no children. If there is no such node, return "left"."
+        if (!getActiveRange()) {
+            return "";
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        if (nodes.length) {
+            return getAlignmentValue(nodes[0]);
+        } else {
+            return "left";
+        }
+    },
+};
+
+//@}
+///// The justifyFull command /////
+//@{
+commands.justifyfull = {
+    preservesOverrides: true,
+    // "Justify the selection with alignment "justify", then return true."
+    action: function() { justifySelection("justify"); return true },
+    indeterm: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if among visible editable nodes that
+        // are contained in the result and have no children, at least one has
+        // alignment value "justify" and at least one does not. Otherwise
+        // return false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.some(function(node) { return getAlignmentValue(node) == "justify" })
+            && nodes.some(function(node) { return getAlignmentValue(node) != "justify" });
+    }, state: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if there is at least one visible
+        // editable node that is contained in the result and has no children,
+        // and all such nodes have alignment value "justify".  Otherwise return
+        // false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.length
+            && nodes.every(function(node) { return getAlignmentValue(node) == "justify" });
+    }, value: function() {
+        // "Return the empty string if the active range is null.  Otherwise,
+        // block-extend the active range, and return the alignment value of the
+        // first visible editable node that is contained in the result and has
+        // no children. If there is no such node, return "left"."
+        if (!getActiveRange()) {
+            return "";
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        if (nodes.length) {
+            return getAlignmentValue(nodes[0]);
+        } else {
+            return "left";
+        }
+    },
+};
+
+//@}
+///// The justifyLeft command /////
+//@{
+commands.justifyleft = {
+    preservesOverrides: true,
+    // "Justify the selection with alignment "left", then return true."
+    action: function() { justifySelection("left"); return true },
+    indeterm: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if among visible editable nodes that
+        // are contained in the result and have no children, at least one has
+        // alignment value "left" and at least one does not. Otherwise return
+        // false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.some(function(node) { return getAlignmentValue(node) == "left" })
+            && nodes.some(function(node) { return getAlignmentValue(node) != "left" });
+    }, state: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if there is at least one visible
+        // editable node that is contained in the result and has no children,
+        // and all such nodes have alignment value "left".  Otherwise return
+        // false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.length
+            && nodes.every(function(node) { return getAlignmentValue(node) == "left" });
+    }, value: function() {
+        // "Return the empty string if the active range is null.  Otherwise,
+        // block-extend the active range, and return the alignment value of the
+        // first visible editable node that is contained in the result and has
+        // no children. If there is no such node, return "left"."
+        if (!getActiveRange()) {
+            return "";
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        if (nodes.length) {
+            return getAlignmentValue(nodes[0]);
+        } else {
+            return "left";
+        }
+    },
+};
+
+//@}
+///// The justifyRight command /////
+//@{
+commands.justifyright = {
+    preservesOverrides: true,
+    // "Justify the selection with alignment "right", then return true."
+    action: function() { justifySelection("right"); return true },
+    indeterm: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if among visible editable nodes that
+        // are contained in the result and have no children, at least one has
+        // alignment value "right" and at least one does not. Otherwise return
+        // false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.some(function(node) { return getAlignmentValue(node) == "right" })
+            && nodes.some(function(node) { return getAlignmentValue(node) != "right" });
+    }, state: function() {
+        // "Return false if the active range is null.  Otherwise, block-extend
+        // the active range. Return true if there is at least one visible
+        // editable node that is contained in the result and has no children,
+        // and all such nodes have alignment value "right".  Otherwise return
+        // false."
+        if (!getActiveRange()) {
+            return false;
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        return nodes.length
+            && nodes.every(function(node) { return getAlignmentValue(node) == "right" });
+    }, value: function() {
+        // "Return the empty string if the active range is null.  Otherwise,
+        // block-extend the active range, and return the alignment value of the
+        // first visible editable node that is contained in the result and has
+        // no children. If there is no such node, return "left"."
+        if (!getActiveRange()) {
+            return "";
+        }
+        var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
+            return isEditable(node) && isVisible(node) && !node.hasChildNodes();
+        });
+        if (nodes.length) {
+            return getAlignmentValue(nodes[0]);
+        } else {
+            return "left";
+        }
+    },
+};
+
+//@}
+///// The outdent command /////
+//@{
+commands.outdent = {
+    preservesOverrides: true,
+    action: function() {
+        // "Let items be a list of all lis that are ancestor containers of the
+        // range's start and/or end node."
+        //
+        // It's annoying to get this in tree order using functional stuff
+        // without doing getDescendants(document), which is slow, so I do it
+        // imperatively.
+        var items = [];
+        (function(){
+            for (
+                var ancestorContainer = getActiveRange().endContainer;
+                ancestorContainer != getActiveRange().commonAncestorContainer;
+                ancestorContainer = ancestorContainer.parentNode
+            ) {
+                if (isHtmlElement(ancestorContainer, "li")) {
+                    items.unshift(ancestorContainer);
+                }
+            }
+            for (
+                var ancestorContainer = getActiveRange().startContainer;
+                ancestorContainer;
+                ancestorContainer = ancestorContainer.parentNode
+            ) {
+                if (isHtmlElement(ancestorContainer, "li")) {
+                    items.unshift(ancestorContainer);
+                }
+            }
+        })();
+
+        // "For each item in items, normalize sublists of item."
+        items.forEach(normalizeSublists);
+
+        // "Block-extend the active range, and let new range be the result."
+        var newRange = blockExtend(getActiveRange());
+
+        // "Let node list be a list of nodes, initially empty."
+        //
+        // "For each node node contained in new range, append node to node list
+        // if the last member of node list (if any) is not an ancestor of node;
+        // node is editable; and either node has no editable descendants, or is
+        // an ol or ul, or is an li whose parent is an ol or ul."
+        var nodeList = getContainedNodes(newRange, function(node) {
+            return isEditable(node)
+                && (!getDescendants(node).some(isEditable)
+                || isHtmlElement(node, ["ol", "ul"])
+                || (isHtmlElement(node, "li") && isHtmlElement(node.parentNode, ["ol", "ul"])));
+        });
+
+        // "While node list is not empty:"
+        while (nodeList.length) {
+            // "While the first member of node list is an ol or ul or is not
+            // the child of an ol or ul, outdent it and remove it from node
+            // list."
+            while (nodeList.length
+            && (isHtmlElement(nodeList[0], ["OL", "UL"])
+            || !isHtmlElement(nodeList[0].parentNode, ["OL", "UL"]))) {
+                outdentNode(nodeList.shift());
+            }
+
+            // "If node list is empty, break from these substeps."
+            if (!nodeList.length) {
+                break;
+            }
+
+            // "Let sublist be a list of nodes, initially empty."
+            var sublist = [];
+
+            // "Remove the first member of node list and append it to sublist."
+            sublist.push(nodeList.shift());
+
+            // "While the first member of node list is the nextSibling of the
+            // last member of sublist, and the first member of node list is not
+            // an ol or ul, remove the first member of node list and append it
+            // to sublist."
+            while (nodeList.length
+            && nodeList[0] == sublist[sublist.length - 1].nextSibling
+            && !isHtmlElement(nodeList[0], ["OL", "UL"])) {
+                sublist.push(nodeList.shift());
+            }
+
+            // "Record the values of sublist, and let values be the result."
+            var values = recordValues(sublist);
+
+            // "Split the parent of sublist, with new parent null."
+            splitParent(sublist);
+
+            // "Fix disallowed ancestors of each member of sublist."
+            sublist.forEach(fixDisallowedAncestors);
+
+            // "Restore the values from values."
+            restoreValues(values);
+        }
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+
+//////////////////////////////////
+///// Miscellaneous commands /////
+//////////////////////////////////
+
+///// The defaultParagraphSeparator command /////
+//@{
+commands.defaultparagraphseparator = {
+    action: function(value) {
+        // "Let value be converted to ASCII lowercase. If value is then equal
+        // to "p" or "div", set the context object's default single-line
+        // container name to value and return true. Otherwise, return false."
+        value = value.toLowerCase();
+        if (value == "p" || value == "div") {
+            defaultSingleLineContainerName = value;
+            return true;
+        }
+        return false;
+    }, value: function() {
+        // "Return the context object's default single-line container name."
+        return defaultSingleLineContainerName;
+    },
+};
+
+//@}
+///// The selectAll command /////
+//@{
+commands.selectall = {
+    // Note, this ignores the whole globalRange/getActiveRange() thing and
+    // works with actual selections.  Not suitable for autoimplementation.html.
+    action: function() {
+        // "Let target be the body element of the context object."
+        var target = document.body;
+
+        // "If target is null, let target be the context object's
+        // documentElement."
+        if (!target) {
+            target = document.documentElement;
+        }
+
+        // "If target is null, call getSelection() on the context object, and
+        // call removeAllRanges() on the result."
+        if (!target) {
+            getSelection().removeAllRanges();
+
+        // "Otherwise, call getSelection() on the context object, and call
+        // selectAllChildren(target) on the result."
+        } else {
+            getSelection().selectAllChildren(target);
+        }
+
+        // "Return true."
+        return true;
+    }
+};
+
+//@}
+///// The styleWithCSS command /////
+//@{
+commands.stylewithcss = {
+    action: function(value) {
+        // "If value is an ASCII case-insensitive match for the string
+        // "false", set the CSS styling flag to false. Otherwise, set the
+        // CSS styling flag to true.  Either way, return true."
+        cssStylingFlag = String(value).toLowerCase() != "false";
+        return true;
+    }, state: function() { return cssStylingFlag }
+};
+
+//@}
+///// The useCSS command /////
+//@{
+commands.usecss = {
+    action: function(value) {
+        // "If value is an ASCII case-insensitive match for the string "false",
+        // set the CSS styling flag to true. Otherwise, set the CSS styling
+        // flag to false.  Either way, return true."
+        cssStylingFlag = String(value).toLowerCase() == "false";
+        return true;
+    }
+};
+//@}
+
+// Some final setup
+//@{
+(function() {
+// Opera 11.50 doesn't implement Object.keys, so I have to make an explicit
+// temporary, which means I need an extra closure to not leak the temporaries
+// into the global namespace.  >:(
+var commandNames = [];
+for (var command in commands) {
+    commandNames.push(command);
+}
+commandNames.forEach(function(command) {
+    // "If a command does not have a relevant CSS property specified, it
+    // defaults to null."
+    if (!("relevantCssProperty" in commands[command])) {
+        commands[command].relevantCssProperty = null;
+    }
+
+    // "If a command has inline command activated values defined but nothing
+    // else defines when it is indeterminate, it is indeterminate if among
+    // formattable nodes effectively contained in the active range, there is at
+    // least one whose effective command value is one of the given values and
+    // at least one whose effective command value is not one of the given
+    // values."
+    if ("inlineCommandActivatedValues" in commands[command]
+    && !("indeterm" in commands[command])) {
+        commands[command].indeterm = function() {
+            if (!getActiveRange()) {
+                return false;
+            }
+
+            var values = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)
+                .map(function(node) { return getEffectiveCommandValue(node, command) });
+
+            var matchingValues = values.filter(function(value) {
+                return commands[command].inlineCommandActivatedValues.indexOf(value) != -1;
+            });
+
+            return matchingValues.length >= 1
+                && values.length - matchingValues.length >= 1;
+        };
+    }
+
+    // "If a command has inline command activated values defined, its state is
+    // true if either no formattable node is effectively contained in the
+    // active range, and the active range's start node's effective command
+    // value is one of the given values; or if there is at least one
+    // formattable node effectively contained in the active range, and all of
+    // them have an effective command value equal to one of the given values."
+    if ("inlineCommandActivatedValues" in commands[command]) {
+        commands[command].state = function() {
+            if (!getActiveRange()) {
+                return false;
+            }
+
+            var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
+
+            if (nodes.length == 0) {
+                return commands[command].inlineCommandActivatedValues
+                    .indexOf(getEffectiveCommandValue(getActiveRange().startContainer, command)) != -1;
+            } else {
+                return nodes.every(function(node) {
+                    return commands[command].inlineCommandActivatedValues
+                        .indexOf(getEffectiveCommandValue(node, command)) != -1;
+                });
+            }
+        };
+    }
+
+    // "If a command is a standard inline value command, it is indeterminate if
+    // among formattable nodes that are effectively contained in the active
+    // range, there are two that have distinct effective command values. Its
+    // value is the effective command value of the first formattable node that
+    // is effectively contained in the active range; or if there is no such
+    // node, the effective command value of the active range's start node; or
+    // if that is null, the empty string."
+    if ("standardInlineValueCommand" in commands[command]) {
+        commands[command].indeterm = function() {
+            if (!getActiveRange()) {
+                return false;
+            }
+
+            var values = getAllEffectivelyContainedNodes(getActiveRange())
+                .filter(isFormattableNode)
+                .map(function(node) { return getEffectiveCommandValue(node, command) });
+            for (var i = 1; i < values.length; i++) {
+                if (values[i] != values[i - 1]) {
+                    return true;
+                }
+            }
+            return false;
+        };
+
+        commands[command].value = function() {
+            if (!getActiveRange()) {
+                return "";
+            }
+
+            var refNode = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)[0];
+
+            if (typeof refNode == "undefined") {
+                refNode = getActiveRange().startContainer;
+            }
+
+            var ret = getEffectiveCommandValue(refNode, command);
+            if (ret === null) {
+                return "";
+            }
+            return ret;
+        };
+    }
+
+    // "If a command preserves overrides, then before taking its action, the
+    // user agent must record current overrides. After taking the action, if
+    // the active range is collapsed, it must restore states and values from
+    // the recorded list."
+    if ("preservesOverrides" in commands[command]) {
+        var oldAction = commands[command].action;
+
+        commands[command].action = function(value) {
+            var overrides = recordCurrentOverrides();
+            var ret = oldAction(value);
+            if (getActiveRange().collapsed) {
+                restoreStatesAndValues(overrides);
+            }
+            return ret;
+        };
+    }
+});
+})();
+//@}
+
+// vim: foldmarker=@{,@} foldmethod=marker
diff --git a/testing/web-platform/tests/editing/include/manualtest.js b/testing/web-platform/tests/editing/include/manualtest.js
new file mode 100644
index 0000000000..504fdae4cc
--- /dev/null
+++ b/testing/web-platform/tests/editing/include/manualtest.js
@@ -0,0 +1,225 @@
+// Initial setup
+//@{
+var globalValue;
+if (globalValue === undefined) {
+    globalValue = command in defaultValues ? defaultValues[command] : "";
+}
+var keyPrefix = globalValue == ""
+    ? "manualtest-" + command + "-"
+    : "manualtest-" + command + "-" + globalValue + "-";
+(function(){
+    var manualTests = tests[command]
+        .map(function(test) { return normalizeTest(command, test) })
+        .filter(function(test) { return test[1][1] == globalValue });
+    var relevantMultiTests = tests.multitest
+        .map(function(test) { return normalizeTest("multitest", test) })
+        .filter(function(test) {
+            // We only want multitests if there's exactly one occurrence of the
+            // command we're testing for, and the value is correct, and that's
+            // the last command we're testing.  Some of these limitations could
+            // be removed in the future.
+            return test[test.length - 1][0] === command
+                && test[test.length - 1][1] === globalValue;
+        });
+
+    tests = manualTests.concat(relevantMultiTests);
+})();
+//@}
+
+function clearCachedResults() {
+//@{
+    for (var key in localStorage) {
+        if (key.indexOf(keyPrefix) === 0) {
+            localStorage.removeItem(key);
+        }
+    }
+}
+//@}
+
+var numManualTests = 0;
+var currentTestIdx = null;
+
+// Make sure styleWithCss is always reset to false at the start of a test run
+// (I'm looking at you, Firefox)
+try { document.execCommand("stylewithcss", false, "false") } catch(e) {}
+
+function runTests() {
+//@{
+    // We don't ask the user to hit a key on all tests, so make sure not to
+    // claim more tests are going to be run than actually are.
+    for (var i = 0; i < tests.length; i++) {
+        if (localStorage.getItem(keyPrefix + JSON.stringify(tests[i])) === null) {
+            numManualTests++;
+        }
+    }
+
+    currentTestIdx = 0;
+
+    var runTestsButton = document.querySelector("#tests input[type=button]");
+    runTestsButton.parentNode.removeChild(runTestsButton);
+
+    var addTestButton = document.querySelector("#tests input[type=button]");
+    var input = document.querySelector("#tests label input");
+    // This code actually focuses and clicks everything because for some
+    // reason, anything else doesn't work in IE9 . . .
+    input.value = JSON.stringify(tests[0]);
+    input.focus();
+    addTestButton.click();
+}
+//@}
+
+function addTest() {
+//@{
+    var tr = doSetup("#tests table", 0);
+    var input = document.querySelector("#tests label input");
+    var test = JSON.parse(input.value);
+    doInputCell(tr, test, test.length == 2 ? command : "multitest");
+    doSpecCell(tr, test, test.length == 2 ? command : "multitest");
+    if (localStorage.getItem(keyPrefix + JSON.stringify(test)) !== null) {
+        // Yay, I get to cheat.  Remove the overlay div so the user doesn't
+        // keep hitting the key, in case it takes a while.
+        var browserCell = document.createElement("td");
+        tr.appendChild(browserCell);
+        browserCell.innerHTML = localStorage[keyPrefix + JSON.stringify(test)];
+        doBrowserCellButton(browserCell, test);
+        document.getElementById("overlay").style.display = "";
+        doSameCell(tr);
+        runNextTest(test);
+    } else {
+        doBrowserCell(tr, test, function() {
+            doSameCell(tr);
+            runNextTest();
+        });
+    }
+}
+//@}
+
+function runNextTest() {
+//@{
+    doTearDown();
+    var input = document.querySelector("#tests label input");
+    if (currentTestIdx === null
+    || currentTestIdx + 1 >= tests.length) {
+        currentTestIdx = null;
+        document.getElementById("overlay").style.display = "";
+        input.value = "";
+        return;
+    }
+    currentTestIdx++;
+    input.value = JSON.stringify(tests[currentTestIdx]);
+    input.focus();
+    addTest();
+}
+//@}
+
+function doBrowserCell(tr, test, callback) {
+//@{
+    var browserCell = document.createElement("td");
+    tr.appendChild(browserCell);
+
+    try {
+        var points = setupCell(browserCell, test[0]);
+
+        var testDiv = browserCell.firstChild;
+        // Work around weird Firefox bug:
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=649138
+        document.body.appendChild(testDiv);
+        testDiv.onkeyup = function() {
+            continueBrowserCell(test, testDiv, browserCell);
+            callback();
+        };
+        testDiv.contentEditable = "true";
+        testDiv.spellcheck = false;
+        if (currentTestIdx === null) {
+            document.getElementById("testcount").style.display = "none";
+        } else {
+            document.getElementById("testcount").style.display = "";
+            document.querySelector("#testcount > span").textContent = numManualTests;
+            numManualTests--;
+        }
+        document.getElementById("overlay").style.display = "block";
+        testDiv.focus();
+        setSelection(points[0], points[1], points[2], points[3]);
+        // Execute any extra commands beforehand, for multitests
+        for (var i = 1; i < test.length - 1; i++) {
+            document.execCommand(test[i][0], false, test[i][1]);
+        }
+    } catch (e) {
+        browserCellException(e, testDiv, browserCell);
+        callback();
+    }
+}
+//@}
+
+function continueBrowserCell(test, testDiv, browserCell) {
+//@{
+    try {
+        testDiv.contentEditable = "inherit";
+        testDiv.removeAttribute("spellcheck");
+        var compareDiv1 = testDiv.cloneNode(true);
+
+        if (getSelection().rangeCount) {
+            addBrackets(getSelection().getRangeAt(0));
+        }
+        browserCell.insertBefore(testDiv, browserCell.firstChild);
+
+        if (!browserCell.childNodes.length == 2) {
+            throw "The cell didn't have two children.  Did something spill outside the test div?";
+        }
+
+        compareDiv1.normalize();
+        // Sigh, Gecko is crazy
+        var treeWalker = document.createTreeWalker(compareDiv1, NodeFilter.SHOW_ELEMENT, null, null);
+        while (treeWalker.nextNode()) {
+            var remove = [].filter.call(treeWalker.currentNode.attributes, function(attrib) {
+                return /^_moz_/.test(attrib.name) || attrib.value == "_moz";
+            });
+            for (var i = 0; i < remove.length; i++) {
+                treeWalker.currentNode.removeAttribute(remove[i].name);
+            }
+        }
+        var compareDiv2 = compareDiv1.cloneNode(false);
+        compareDiv2.innerHTML = compareDiv1.innerHTML;
+        if (!compareDiv1.isEqualNode(compareDiv2)
+        && compareDiv1.innerHTML != compareDiv2.innerHTML) {
+            throw "DOM does not round-trip through serialization!  "
+                + compareDiv1.innerHTML + " vs. " + compareDiv2.innerHTML;
+        }
+        if (!compareDiv1.isEqualNode(compareDiv2)) {
+            throw "DOM does not round-trip through serialization (although innerHTML is the same)!  "
+                + compareDiv1.innerHTML;
+        }
+
+        browserCell.lastChild.textContent = browserCell.firstChild.innerHTML;
+    } catch (e) {
+        browserCellException(e, testDiv, browserCell);
+    }
+
+    localStorage[keyPrefix + JSON.stringify(test)] = browserCell.innerHTML;
+
+    doBrowserCellButton(browserCell, test);
+}
+//@}
+
+function doBrowserCellButton(browserCell, test) {
+//@{
+    var button = document.createElement("button");
+    browserCell.lastChild.appendChild(button);
+    button.textContent = "Redo browser output";
+    button.onclick = function() {
+        localStorage.removeItem(keyPrefix + JSON.stringify(test));
+        var tr = browserCell.parentNode;
+        while (browserCell.nextSibling) {
+            tr.removeChild(browserCell.nextSibling);
+        }
+        tr.removeChild(browserCell);
+        doBrowserCell(tr, test, function() {
+            doSameCell(tr);
+            doTearDown();
+            document.getElementById("overlay").style.display = "";
+            tr.scrollIntoView();
+        });
+    };
+}
+//@}
+// vim: foldmarker=@{,@} foldmethod=marker
diff --git a/testing/web-platform/tests/editing/include/reset.css b/testing/web-platform/tests/editing/include/reset.css
new file mode 100644
index 0000000000..b711d724c3
--- /dev/null
+++ b/testing/web-platform/tests/editing/include/reset.css
@@ -0,0 +1,27 @@
+/* Make sure various CSS values are what are expected, so that tests work
+ * right. */
+body { font-family: serif }
+/* http://www.w3.org/Bugs/Public/show_bug.cgi?id=12154
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=589124
+ * https://bugs.webkit.org/show_bug.cgi?id=56400 */
+b, strong { font-weight: bold }
+.bold { font-weight: bold }
+.notbold { font-weight: normal }
+.underline { text-decoration: underline }
+.line-through { text-decoration: line-through }
+.underline-and-line-through { text-decoration: underline line-through }
+#purple { color: purple }
+/* https://bugs.webkit.org/show_bug.cgi?id=56670 */
+dfn { font-style: italic }
+/* Opera has weird default blockquote style */
+blockquote { margin: 1em 40px }
+/* Some tests assume links are blue, for the sake of argument, but they aren't
+ * blue in any browser.  And :visited definitely isn't blue, except in engines
+ * like Gecko that lie.
+ *
+ * This should really be #00e, probably.  See:
+ * http://www.w3.org/Bugs/Public/show_bug.cgi?id=13330 */
+:link, :visited { color: blue }
+/* http://www.w3.org/Bugs/Public/show_bug.cgi?id=14066
+ * https://bugs.webkit.org/show_bug.cgi?id=68392 */
+quasit { text-align: inherit }
diff --git a/testing/web-platform/tests/editing/include/tests.css b/testing/web-platform/tests/editing/include/tests.css
new file mode 100644
index 0000000000..e72f338085
--- /dev/null
+++ b/testing/web-platform/tests/editing/include/tests.css
@@ -0,0 +1,84 @@
+@import "reset.css";
+.yes { color: green }
+.no { color: red }
+.maybe { color: orange }
+.yes, .no, .maybe {
+    text-align: center;
+    vertical-align: middle;
+    font-size: 3em;
+    /* Somehow Opera doesn't render the X's if the font is serif, on my
+     * machine. */
+    font-family: sans-serif;
+    border-color: black;
+}
+div.alert {
+    color: red;
+    font-weight: bold;
+}
+.extra-results { font-size: small }
+.good-result { color: green }
+.bad-result { color: red }
+body > div > table > tbody > tr > td > div:first-child {
+    padding-bottom: 0.2em;
+}
+body > div > table > tbody > tr > td > div:last-child {
+    padding-top: 0.2em;
+    border-top: 1px solid black;
+}
+/* Workaround for browsers that don't treat <wbr> as a line-break opportunity
+ * (activated via JS feature-detection) */
+body.wbr-workaround > div > table > tbody > tr > td > div:last-child {
+    word-wrap: break-word;
+}
+body > div > table > tbody > tr > td > div:last-child {
+    white-space: pre-wrap;
+}
+/* Let the rendered HTML line up so it's easier to compare whitespace */
+body > div > table > tbody > tr > td { vertical-align: top }
+/* We don't want test cells to not wrap */
+listing, plaintext, pre, xmp { white-space: pre-wrap }
+img, video { width: 50px }
+body > div > table {
+    width: 100%;
+    table-layout: fixed;
+}
+body > div > table > tbody > tr > td,
+body > div > table > tbody > tr > th {
+    width: 30%;
+}
+body > div > table > tbody > tr > td:last-child,
+body > div > table > tbody > tr > th:last-child {
+    width: 10%;
+}
+body > div > p > label > input { width: 30% }
+#toolbar {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    height: 1.5em;
+    background: white;
+    border-bottom: 2px solid gray;
+}
+body {
+    /* So the toolbar doesn't block it */
+    margin-top: 2em;
+}
+/* For easy visibility of nesting */
+ol ol { list-style-type: lower-alpha }
+ol ol ol { list-style-type: lower-roman }
+/* For manual tests */
+#overlay {
+    display: none;
+    position: fixed;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    color: red;
+    background: yellow;
+    font-size: 4em;
+    font-weight: bold;
+    text-align: center;
+    padding: 2em;
+}
diff --git a/testing/web-platform/tests/editing/include/tests.js b/testing/web-platform/tests/editing/include/tests.js
new file mode 100644
index 0000000000..c18aef136b
--- /dev/null
+++ b/testing/web-platform/tests/editing/include/tests.js
@@ -0,0 +1,5756 @@
+// For the original (development) tests, we want to make a bunch of changes to
+// the page as it loads.  We don't want this for the conformance tests, so let
+// them opt out.
+if (typeof testsJsLibraryOnly == "undefined" || !testsJsLibraryOnly) {
+    // Alert the reader of egregious Opera bug that will make the specced
+    // implementation horribly buggy
+    //@{
+    (function() {
+        var div = document.createElement("div");
+        div.appendChild(document.createElement("br"));
+        document.body.insertBefore(div, document.body.firstChild);
+        var range = document.createRange();
+        range.setStart(div, 1);
+        div.insertBefore(document.createElement("p"), div.firstChild);
+        if (range.startOffset > range.startContainer.childNodes.length) {
+            var warningDiv = document.createElement("p");
+            document.body.insertBefore(warningDiv, document.body.firstChild);
+            warningDiv.style.fontWeight = "bold";
+            warningDiv.style.fontSize = "2em";
+            warningDiv.style.color = "red";
+            warningDiv.innerHTML = 'Your browser suffers from an <a href="http://software.hixie.ch/utilities/js/live-dom-viewer/saved/1028">egregious bug</a> in range mutation that will give incorrect results for the spec columns in many cases.  To ensure that the spec column contains the output actually required by the spec, use a different browser.';
+        }
+        div.parentNode.removeChild(div);
+    })();
+    //@}
+
+    // Insert the toolbar thingie as soon as the script file is loaded
+    //@{
+    (function() {
+        var toolbarDiv = document.createElement("div");
+        toolbarDiv.id = "toolbar";
+        // Note: this is completely not a hack at all.
+        toolbarDiv.innerHTML = "<style id=alerts>body > div > table > tbody > tr:not(.alert):not(:first-child):not(.active) { display: none }</style>"
+            + "<label><input id=alert-checkbox type=checkbox accesskey=a checked onclick='updateAlertRowStyle()'> Display rows without spec <u>a</u>lerts</label>"
+            + "<label><input id=browser-checkbox type=checkbox accesskey=b checked onclick='localStorage[\"display-browser-tests\"] = event.target.checked'> Run <u>b</u>rowser tests as well as spec tests</label>";
+
+        document.body.appendChild(toolbarDiv);
+    })();
+    //@}
+
+    // Confusingly, we're storing a string here, not a boolean.
+    document.querySelector("#alert-checkbox").checked = localStorage["display-alerts"] != "false";
+    document.querySelector("#browser-checkbox").checked = localStorage["display-browser-tests"] != "false";
+
+    function updateAlertRowStyle() {
+    //@{
+        var checked = document.querySelector("#alert-checkbox").checked;
+        document.querySelector("#alerts").disabled = checked;
+        localStorage["display-alerts"] = checked;
+    }
+    //@}
+    updateAlertRowStyle();
+
+    // Feature-test whether the browser wraps at <wbr> or not, and set word-wrap:
+    // break-word where necessary if not.  (IE and Opera don't wrap, Gecko and
+    // WebKit do.)  word-wrap: break-word will break anywhere at all, so it looks
+    // significantly uglier.
+    //@{
+    (function() {
+        var wordWrapTestDiv = document.createElement("div");
+        wordWrapTestDiv.style.width = "5em";
+        document.body.appendChild(wordWrapTestDiv);
+        wordWrapTestDiv.innerHTML = "abc";
+        var height1 = getComputedStyle(wordWrapTestDiv).height;
+        wordWrapTestDiv.innerHTML = "abc<wbr>abc<wbr>abc<wbr>abc<wbr>abc<wbr>abc";
+        var height2 = getComputedStyle(wordWrapTestDiv).height;
+        document.body.removeChild(wordWrapTestDiv);
+        if (height1 == height2) {
+            document.body.className = (document.body.className + " wbr-workaround").trim();
+        }
+    })();
+    //@}
+}
+
+// Now for the meat of the file.
+var tests = {
+    backcolor: [
+    //@{ Same as hilitecolor (set below)
+    ],
+    //@}
+    bold: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        'foo<span contenteditable=false>[bar]</span>baz',
+        'fo[o<span contenteditable=false>bar</span>b]az',
+        'foo<span contenteditable=false>ba[r</span>b]az',
+        'fo[o<span contenteditable=false>b]ar</span>baz',
+        'fo[<b>o</b><span contenteditable=false>bar</span><b>b</b>]az',
+        '<span contenteditable=false>foo<span contenteditable=true>[bar]</span>baz</span>',
+        '<span contenteditable=false>fo[o<span contenteditable=true>bar</span>b]az</span>',
+        '<span contenteditable=false>foo<span contenteditable=true>ba[r</span>b]az</span>',
+        '<span contenteditable=false>fo[o<span contenteditable=true>b]ar</span>baz</span>',
+        '<span contenteditable=false>fo[<b>o<span contenteditable=true>bar</span>b</b>]az</span>',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<span style="font-weight: bold">[bar]</span>baz',
+        'foo<b>[bar]</b>baz',
+        'foo<b>bar</b>[baz]',
+        '[foo]<b>bar</b>baz',
+        '<b>foo</b>[bar]<b>baz</b>',
+        'foo<strong>bar</strong>[baz]',
+        '[foo]<strong>bar</strong>baz',
+        '<strong>foo</strong>[bar]<strong>baz</strong>',
+        '<b>foo</b>[bar]<strong>baz</strong>',
+        '<strong>foo</strong>[bar]<b>baz</b>',
+        'foo[<b>bar</b>]baz',
+        'foo[<b>bar]</b>baz',
+        'foo<b>[bar</b>]baz',
+
+        'foo{<b></b>}baz',
+        'foo{<i></i>}baz',
+        'foo{<b><i></i></b>}baz',
+        'foo{<i><b></b></i>}baz',
+
+        'foo<strong>[bar]</strong>baz',
+        'foo[<strong>bar</strong>]baz',
+        'foo[<strong>bar]</strong>baz',
+        'foo<strong>[bar</strong>]baz',
+        'foo[<span style="font-weight: bold">bar</span>]baz',
+        'foo[<span style="font-weight: bold">bar]</span>baz',
+        'foo<span style="font-weight: bold">[bar</span>]baz',
+
+        '<b>{<p>foo</p><p>bar</p>}<p>baz</p></b>',
+        '<b><p>foo[<i>bar</i>}</p><p>baz</p></b>',
+
+        'foo [bar <b>baz] qoz</b> quz sic',
+        'foo bar <b>baz [qoz</b> quz] sic',
+
+        '<b id=purple>bar [baz] qoz</b>',
+
+        'foo<span style="font-weight: 100">[bar]</span>baz',
+        'foo<span style="font-weight: 200">[bar]</span>baz',
+        'foo<span style="font-weight: 300">[bar]</span>baz',
+        'foo<span style="font-weight: 400">[bar]</span>baz',
+        'foo<span style="font-weight: 500">[bar]</span>baz',
+        'foo<span style="font-weight: 600">[bar]</span>baz',
+        'foo<span style="font-weight: 700">[bar]</span>baz',
+        'foo<span style="font-weight: 800">[bar]</span>baz',
+        'foo<span style="font-weight: 900">[bar]</span>baz',
+        'foo<span style="font-weight: 400">[bar</span>]baz',
+        'foo<span style="font-weight: 700">[bar</span>]baz',
+        'foo[<span style="font-weight: 400">bar]</span>baz',
+        'foo[<span style="font-weight: 700">bar]</span>baz',
+        'foo[<span style="font-weight: 400">bar</span>]baz',
+        'foo[<span style="font-weight: 700">bar</span>]baz',
+        '<span style="font-weight: 100">foo[bar]baz</span>',
+        '<span style="font-weight: 400">foo[bar]baz</span>',
+        '<span style="font-weight: 700">foo[bar]baz</span>',
+        '<span style="font-weight: 900">foo[bar]baz</span>',
+        '{<span style="font-weight: 100">foobar]baz</span>',
+        '{<span style="font-weight: 400">foobar]baz</span>',
+        '{<span style="font-weight: 700">foobar]baz</span>',
+        '{<span style="font-weight: 900">foobar]baz</span>',
+        '<span style="font-weight: 100">foo[barbaz</span>}',
+        '<span style="font-weight: 400">foo[barbaz</span>}',
+        '<span style="font-weight: 700">foo[barbaz</span>}',
+        '<span style="font-weight: 900">foo[barbaz</span>}',
+
+        '<h3>foo[bar]baz</h3>',
+        '{<h3>foobar]baz</h3>',
+        '<h3>foo[barbaz</h3>}',
+        '<h3>[foobarbaz]</h3>',
+        '{<h3>foobarbaz]</h3>',
+        '<h3>[foobarbaz</h3>}',
+        '{<h3>foobarbaz</h3>}',
+
+        '<b>foo<span style="font-weight: normal">bar<b>[baz]</b>quz</span>qoz</b>',
+        '<b>foo<span style="font-weight: normal">[bar]</span>baz</b>',
+
+        '{<b>foo</b> <b>bar</b>}',
+        '{<h3>foo</h3><b>bar</b>}',
+
+        '<i><b>foo</b></i>[bar]<i><b>baz</b></i>',
+        '<i><b>foo</b></i>[bar]<b>baz</b>',
+        '<b>foo</b>[bar]<i><b>baz</b></i>',
+        '<font color=blue face=monospace><b>foo</b></font>[bar]',
+
+        'foo<span style="font-weight: normal"><b>{bar}</b></span>baz',
+        '[foo<span class=notbold>bar</span>baz]',
+        '<b><span class=notbold>[foo]</span></b>',
+        '<b><span class=notbold>foo[bar]baz</span></b>',
+
+        '<p style="font-weight: bold">foo[bar]baz</p>',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<b>b]ar</b>baz',
+        'foo<b>ba[r</b>b]az',
+        'fo[o<b>bar</b>b]az',
+        'foo[<b>b]ar</b>baz',
+        'foo<b>ba[r</b>]baz',
+        'foo{<b>bar</b>}baz',
+        'fo[o<span style=font-weight:bold>b]ar</span>baz',
+        '<span style=font-weight:800>fo[o</span><span style=font-weight:900>b]ar</span>',
+        '<span style=font-weight:700>fo[o</span><span style=font-weight:800>b]ar</span>',
+        '<span style=font-weight:600>fo[o</span><span style=font-weight:700>b]ar</span>',
+        '<span style=font-weight:500>fo[o</span><span style=font-weight:600>b]ar</span>',
+        '<span style=font-weight:400>fo[o</span><span style=font-weight:500>b]ar</span>',
+        '<span style=font-weight:300>fo[o</span><span style=font-weight:400>b]ar</span>',
+        '<span style=font-weight:200>fo[o</span><span style=font-weight:300>b]ar</span>',
+        '<span style=font-weight:100>fo[o</span><span style=font-weight:200>b]ar</span>',
+    ],
+    //@}
+    createlink: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        '<a href=http://www.google.com/>foo[bar]baz</a>',
+        '<a href=http://www.google.com/>foo[barbaz</a>}',
+        '{<a href=http://www.google.com/>foobar]baz</a>',
+        '{<a href=http://www.google.com/>foobarbaz</a>}',
+        '<a href=http://www.google.com/>[foobarbaz]</a>',
+
+        'foo<a href=http://www.google.com/>[bar]</a>baz',
+        '[foo]<a href=http://www.google.com/>bar</a>baz',
+        'foo<a href=http://www.google.com/>bar</a>[baz]',
+        'foo[<a href=http://www.google.com/>bar</a>]baz',
+        'foo<a href=http://www.google.com/>[bar</a>baz]',
+        '[foo<a href=http://www.google.com/>bar]</a>baz',
+        '[foo<a href=http://www.google.com/>bar</a>baz]',
+
+        '<a href=otherurl>foo[bar]baz</a>',
+        '<a href=otherurl>foo[barbaz</a>}',
+        '{<a href=otherurl>foobar]baz</a>',
+        '{<a href=otherurl>foobarbaz</a>}',
+        '<a href=otherurl>[foobarbaz]</a>',
+
+        'foo<a href=otherurl>[bar]</a>baz',
+        'foo[<a href=otherurl>bar</a>]baz',
+        'foo<a href=otherurl>[bar</a>baz]',
+        '[foo<a href=otherurl>bar]</a>baz',
+        '[foo<a href=otherurl>bar</a>baz]',
+
+        '<a href=otherurl><b>foo[bar]baz</b></a>',
+        '<a href=otherurl><b>foo[barbaz</b></a>}',
+        '{<a href=otherurl><b>foobar]baz</b></a>',
+        '<a href=otherurl><b>[foobarbaz]</b></a>',
+
+        '<a name=abc>foo[bar]baz</a>',
+        '<a name=abc><b>foo[bar]baz</b></a>',
+
+        ['', 'foo[bar]baz'],
+    ],
+    //@}
+    // Opera requires this to be quoted, contrary to ES5 11.1.5 which allows
+    // PropertyName to be any IdentifierName, and see 7.6 which defines
+    // IdentifierName to include ReservedWord; Identifier excludes it.
+    "delete": [
+    //@{
+        // Collapsed selection
+        //
+        // These three commented-out test call Firefox 5.0a2 to blow up, not
+        // just throwing exceptions on the tests themselves but on many
+        // subsequent tests too.
+        //'[]foo',
+        //'<span>[]foo</span>',
+        //'<p>[]foo</p>',
+        'foo[]bar',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo<span style=display:none>bar</span>[]baz',
+        'foo<script>bar</script>[]baz',
+
+        'fo&ouml;[]bar',
+        'foo&#x308;[]bar',
+        'foo&#x308;&#x327;[]bar',
+        '&ouml;[]bar',
+        'o&#x308;[]bar',
+        'o&#x308;&#x327;[]bar',
+
+        '&#x5e9;&#x5c1;&#x5b8;[]&#x5dc;&#x5d5;&#x5b9;&#x5dd;',
+        '&#x5e9;&#x5c1;&#x5b8;&#x5dc;&#x5d5;&#x5b9;[]&#x5dd;',
+
+        '<p>foo</p><p>[]bar</p>',
+        '<p>foo</p>[]bar',
+        'foo<p>[]bar</p>',
+        '<p>foo<br></p><p>[]bar</p>',
+        '<p>foo<br></p>[]bar',
+        'foo<br><p>[]bar</p>',
+        '<p>foo<br><br></p><p>[]bar</p>',
+        '<p>foo<br><br></p>[]bar',
+        'foo<br><br><p>[]bar</p>',
+
+        '<div><p>foo</p></div><p>[]bar</p>',
+        '<p>foo</p><div><p>[]bar</p></div>',
+        '<div><p>foo</p></div><div><p>[]bar</p></div>',
+        '<div><p>foo</p></div>[]bar',
+        'foo<div><p>[]bar</p></div>',
+
+        '<div>foo</div><div>[]bar</div>',
+        '<pre>foo</pre>[]bar',
+
+        'foo<br>[]bar',
+        'foo<br><b>[]bar</b>',
+        'foo<hr>[]bar',
+        '<p>foo<hr><p>[]bar',
+        '<p>foo</p><br><p>[]bar</p>',
+        '<p>foo</p><br><br><p>[]bar</p>',
+        '<p>foo</p><img src=/img/lion.svg><p>[]bar',
+        'foo<img src=/img/lion.svg>[]bar',
+
+        '<a>foo</a>[]bar',
+        '<a href=/>foo</a>[]bar',
+        '<a name=abc>foo</a>[]bar',
+        '<a href=/ name=abc>foo</a>[]bar',
+        '<span><a>foo</a></span>[]bar',
+        '<span><a href=/>foo</a></span>[]bar',
+        '<span><a name=abc>foo</a></span>[]bar',
+        '<span><a href=/ name=abc>foo</a></span>[]bar',
+        'foo<a>[]bar</a>',
+        'foo<a href=/>[]bar</a>',
+        'foo<a name=abc>[]bar</a>',
+        'foo<a href=/ name=abc>[]bar</a>',
+
+        'foo &nbsp;[]',
+        '&nbsp;[] foo',
+        'foo &nbsp;[]bar',
+        'foo&nbsp; []bar',
+        'foo&nbsp;&nbsp;[]bar',
+        'foo  []bar',
+        'foo []&nbsp; bar',
+        'foo &nbsp;[] bar',
+        'foo &nbsp; []bar',
+        'foo []<span>&nbsp;</span> bar',
+        'foo <span>&nbsp;</span>[] bar',
+        'foo <span>&nbsp;</span> []bar',
+        '<b>foo </b>&nbsp;[]bar',
+        '<b>foo&nbsp;</b> []bar',
+        '<b>foo&nbsp;</b>&nbsp;[]bar',
+        '<b>foo </b> []bar',
+        '<p>foo </p><p>[] bar</p>',
+
+        '<pre>foo &nbsp;[]</pre>',
+        '<pre>&nbsp;[] foo</pre>',
+        '<pre>foo &nbsp;[]bar</pre>',
+        '<pre>foo&nbsp; []bar</pre>',
+        '<pre>foo  []bar</pre>',
+
+        '<div style=white-space:pre>foo &nbsp;[]</div>',
+        '<div style=white-space:pre>&nbsp;[] foo</div>',
+        '<div style=white-space:pre>foo &nbsp;[]bar</div>',
+        '<div style=white-space:pre>foo&nbsp; []bar</div>',
+        '<div style=white-space:pre>foo  []bar</div>',
+
+        '<div style=white-space:pre-wrap>foo &nbsp;[]</div>',
+        '<div style=white-space:pre-wrap>&nbsp;[] foo</div>',
+        '<div style=white-space:pre-wrap>foo &nbsp;[]bar</div>',
+        '<div style=white-space:pre-wrap>foo&nbsp; []bar</div>',
+        '<div style=white-space:pre-wrap>foo  []bar</div>',
+
+        '<div style=white-space:pre-line>foo &nbsp;[]</div>',
+        '<div style=white-space:pre-line>&nbsp;[] foo</div>',
+        '<div style=white-space:pre-line>foo &nbsp;[]bar</div>',
+        '<div style=white-space:pre-line>foo&nbsp; []bar</div>',
+        '<div style=white-space:pre-line>foo  []bar</div>',
+
+        '<div style=white-space:nowrap>foo &nbsp;[]</div>',
+        '<div style=white-space:nowrap>&nbsp;[] foo</div>',
+        '<div style=white-space:nowrap>foo &nbsp;[]bar</div>',
+        '<div style=white-space:nowrap>foo&nbsp; []bar</div>',
+        '<div style=white-space:nowrap>foo  []bar</div>',
+
+        // Tables with collapsed selection
+        'foo<table><tr><td>[]bar</table>baz',
+        'foo<table><tr><td>bar</table>[]baz',
+        '<p>foo<table><tr><td>[]bar</table><p>baz',
+        '<p>foo<table><tr><td>bar</table><p>[]baz',
+        '<table><tr><td>foo<td>[]bar</table>',
+        '<table><tr><td>foo<tr><td>[]bar</table>',
+
+        'foo<br><table><tr><td>[]bar</table>baz',
+        'foo<table><tr><td>bar<br></table>[]baz',
+        '<p>foo<br><table><tr><td>[]bar</table><p>baz',
+        '<p>foo<table><tr><td>bar<br></table><p>[]baz',
+        '<table><tr><td>foo<br><td>[]bar</table>',
+        '<table><tr><td>foo<br><tr><td>[]bar</table>',
+
+        'foo<br><br><table><tr><td>[]bar</table>baz',
+        'foo<table><tr><td>bar<br><br></table>[]baz',
+        '<p>foo<br><br><table><tr><td>[]bar</table><p>baz',
+        '<p>foo<table><tr><td>bar<br><br></table><p>[]baz',
+        '<table><tr><td>foo<br><br><td>[]bar</table>',
+        '<table><tr><td>foo<br><br><tr><td>[]bar</table>',
+
+        'foo<hr><table><tr><td>[]bar</table>baz',
+        'foo<table><tr><td>bar<hr></table>[]baz',
+        '<table><tr><td>foo<hr><td>[]bar</table>',
+        '<table><tr><td>foo<hr><tr><td>[]bar</table>',
+
+        // Lists with collapsed selection
+        'foo<ol><li>[]bar<li>baz</ol>',
+        'foo<br><ol><li>[]bar<li>baz</ol>',
+        'foo<br><br><ol><li>[]bar<li>baz</ol>',
+        '<ol><li>foo<li>[]bar</ol>',
+        '<ol><li>foo<br><li>[]bar</ol>',
+        '<ol><li>foo<br><br><li>[]bar</ol>',
+        '<ol><li>foo<li>[]bar<br>baz</ol>',
+        '<ol><li>foo<br>bar<li>[]baz</ol>',
+
+        '<ol><li><p>foo</p>{}bar</ol>',
+
+        '<ol><li><p>foo<li>[]bar</ol>',
+        '<ol><li>foo<li><p>[]bar</ol>',
+        '<ol><li><p>foo<li><p>[]bar</ol>',
+
+        '<ol><li>foo<ul><li>[]bar</ul></ol>',
+        'foo<ol><ol><li>[]bar</ol></ol>',
+        'foo<div><ol><li>[]bar</ol></div>',
+
+        'foo<dl><dt>[]bar<dd>baz</dl>',
+        'foo<dl><dd>[]bar</dl>',
+        '<dl><dt>foo<dd>[]bar</dl>',
+        '<dl><dt>foo<dt>[]bar<dd>baz</dl>',
+        '<dl><dt>foo<dd>bar<dd>[]baz</dl>',
+
+        '<ol><li>foo</ol>[]bar',
+        '<ol><li>foo<br></ol>[]bar',
+        '<ol><li>foo<br><br></ol>[]bar',
+        '<ol><li><br></ol>[]bar',
+        '<ol><li>foo<li><br></ol>[]bar',
+
+        '<ol><li>foo</ol><p>[]bar',
+        '<ol><li>foo<br></ol><p>[]bar',
+        '<ol><li>foo<br><br></ol><p>[]bar',
+        '<ol><li><br></ol><p>[]bar',
+        '<ol><li>foo<li><br></ol><p>[]bar',
+
+        '<ol><li>foo</ol>{}<br>',
+        '<ol><li>foo<br></ol>{}<br>',
+        '<ol><li>foo<br><br></ol>{}<br>',
+        '<ol><li><br></ol>{}<br>',
+        '<ol><li>foo<li><br></ol>{}<br>',
+
+        '<ol><li>foo</ol><p>{}<br>',
+        '<ol><li>foo<br></ol><p>{}<br>',
+        '<ol><li>foo<br><br></ol><p>{}<br>',
+        '<ol><li><br></ol><p>{}<br>',
+        '<ol><li>foo<li><br></ol><p>{}<br>',
+
+        // Indented stuff with collapsed selection
+        'foo<blockquote>[]bar</blockquote>',
+        'foo<blockquote><blockquote>[]bar</blockquote></blockquote>',
+        'foo<blockquote><div>[]bar</div></blockquote>',
+        'foo<blockquote style="color: blue">[]bar</blockquote>',
+
+        'foo<blockquote><blockquote><p>[]bar<p>baz</blockquote></blockquote>',
+        'foo<blockquote><div><p>[]bar<p>baz</div></blockquote>',
+        'foo<blockquote style="color: blue"><p>[]bar<p>baz</blockquote>',
+
+        'foo<blockquote><p><b>[]bar</b><p>baz</blockquote>',
+        'foo<blockquote><p><strong>[]bar</strong><p>baz</blockquote>',
+        'foo<blockquote><p><span>[]bar</span><p>baz</blockquote>',
+
+        'foo<blockquote><ol><li>[]bar</ol></blockquote><p>extra',
+        'foo<blockquote>bar<ol><li>[]baz</ol>quz</blockquote><p>extra',
+        'foo<blockquote><ol><li>bar</li><ol><li>[]baz</ol><li>quz</ol></blockquote><p>extra',
+
+        // Invisible stuff with collapsed selection
+        'foo<span></span>[]bar',
+        'foo<span><span></span></span>[]bar',
+        'foo<quasit></quasit>[]bar',
+        'foo<br><span></span>[]bar',
+        '<span>foo<span></span></span>[]bar',
+        'foo<span></span><span>[]bar</span>',
+        'foo<div><div><p>[]bar</div></div>',
+        'foo<div><div><p><!--abc-->[]bar</div></div>',
+        'foo<div><div><!--abc--><p>[]bar</div></div>',
+        'foo<div><!--abc--><div><p>[]bar</div></div>',
+        'foo<!--abc--><div><div><p>[]bar</div></div>',
+        '<div><div><p>foo</div></div>[]bar',
+        '<div><div><p>foo</div></div><!--abc-->[]bar',
+        '<div><div><p>foo</div><!--abc--></div>[]bar',
+        '<div><div><p>foo</p><!--abc--></div></div>[]bar',
+        '<div><div><p>foo<!--abc--></div></div>[]bar',
+        '<div><div><p>foo</p></div></div><div><div><div>[]bar</div></div></div>',
+        '<div><div><p>foo<!--abc--></p></div></div><div><div><div>[]bar</div></div></div>',
+        '<div><div><p>foo</p><!--abc--></div></div><div><div><div>[]bar</div></div></div>',
+        '<div><div><p>foo</p></div><!--abc--></div><div><div><div>[]bar</div></div></div>',
+        '<div><div><p>foo</p></div></div><!--abc--><div><div><div>[]bar</div></div></div>',
+        '<div><div><p>foo</p></div></div><div><!--abc--><div><div>[]bar</div></div></div>',
+        '<div><div><p>foo</p></div></div><div><div><!--abc--><div>[]bar</div></div></div>',
+        '<div><div><p>foo</p></div></div><div><div><div><!--abc-->[]bar</div></div></div>',
+
+        // Styled stuff with collapsed selection
+        '<p style=color:blue>foo<p>[]bar',
+        '<p style=color:blue>foo<p style=color:brown>[]bar',
+        '<p style=color:blue>foo<p style=color:rgba(0,0,255,1)>[]bar',
+        '<p style=color:transparent>foo<p style=color:rgba(0,0,0,0)>[]bar',
+        '<p>foo<p style=color:brown>[]bar',
+        '<p><font color=blue>foo</font><p>[]bar',
+        '<p><font color=blue>foo</font><p><font color=brown>[]bar</font>',
+        '<p>foo<p><font color=brown>[]bar</font>',
+        '<p><span style=color:blue>foo</font><p>[]bar',
+        '<p><span style=color:blue>foo</font><p><span style=color:brown>[]bar</font>',
+        '<p>foo<p><span style=color:brown>[]bar</font>',
+
+        '<p style=background-color:aqua>foo<p>[]bar',
+        '<p style=background-color:aqua>foo<p style=background-color:tan>[]bar',
+        '<p>foo<p style=background-color:tan>[]bar',
+        '<p><span style=background-color:aqua>foo</font><p>[]bar',
+        '<p><span style=background-color:aqua>foo</font><p><span style=background-color:tan>[]bar</font>',
+        '<p>foo<p><span style=background-color:tan>[]bar</font>',
+
+        '<p style=text-decoration:underline>foo<p>[]bar',
+        '<p style=text-decoration:underline>foo<p style=text-decoration:line-through>[]bar',
+        '<p>foo<p style=text-decoration:line-through>[]bar',
+        '<p><u>foo</u><p>[]bar',
+        '<p><u>foo</u><p><s>[]bar</s>',
+        '<p>foo<p><s>[]bar</s>',
+
+        '<p style=color:blue>foo</p>[]bar',
+        'foo<p style=color:brown>[]bar',
+        '<div style=color:blue><p style=color:green>foo</div>[]bar',
+        '<div style=color:blue><p style=color:green>foo</div><p style=color:brown>[]bar',
+        '<p style=color:blue>foo<div style=color:brown><p style=color:green>[]bar',
+
+        // Uncollapsed selection
+        'foo[bar]baz',
+        '<p>foo<span style=color:#aBcDeF>[bar]</span>baz',
+        '<p>foo<span style=color:#aBcDeF>{bar}</span>baz',
+        '<p>foo{<span style=color:#aBcDeF>bar</span>}baz',
+        '<p>[foo<span style=color:#aBcDeF>bar]</span>baz',
+        '<p>{foo<span style=color:#aBcDeF>bar}</span>baz',
+        '<p>foo<span style=color:#aBcDeF>[bar</span>baz]',
+        '<p>foo<span style=color:#aBcDeF>{bar</span>baz}',
+        '<p>foo<span style=color:#aBcDeF>[bar</span><span style=color:#fEdCbA>baz]</span>quz',
+
+        'foo<b>[bar]</b>baz',
+        'foo<b>{bar}</b>baz',
+        'foo{<b>bar</b>}baz',
+        'foo<span>[bar]</span>baz',
+        'foo<span>{bar}</span>baz',
+        'foo{<span>bar</span>}baz',
+        '<b>foo[bar</b><i>baz]quz</i>',
+        '<p>foo</p><p>[bar]</p><p>baz</p>',
+        '<p>foo</p><p>{bar}</p><p>baz</p>',
+        '<p>foo</p><p>{bar</p>}<p>baz</p>',
+        '<p>foo</p>{<p>bar}</p><p>baz</p>',
+        '<p>foo</p>{<p>bar</p>}<p>baz</p>',
+
+        '<p>foo[bar<p>baz]quz',
+        '<p>foo[bar<div>baz]quz</div>',
+        '<p>foo[bar<h1>baz]quz</h1>',
+        '<div>foo[bar</div><p>baz]quz',
+        '<blockquote>foo[bar</blockquote><pre>baz]quz</pre>',
+
+        '<p><b>foo[bar</b><p>baz]quz',
+        '<div><p>foo[bar</div><p>baz]quz',
+        '<p>foo[bar<blockquote><p>baz]quz<p>qoz</blockquote',
+        '<p>foo[bar<p style=color:blue>baz]quz',
+        '<p>foo[bar<p><b>baz]quz</b>',
+
+        '<div><p>foo<p>[bar<p>baz]</div>',
+
+        'foo[<br>]bar',
+        '<p>foo[</p><p>]bar</p>',
+        '<p>foo[</p><p>]bar<br>baz</p>',
+        'foo[<p>]bar</p>',
+        'foo{<p>}bar</p>',
+        'foo[<p>]bar<br>baz</p>',
+        'foo[<p>]bar</p>baz',
+        'foo{<p>bar</p>}baz',
+        'foo<p>{bar</p>}baz',
+        'foo{<p>bar}</p>baz',
+        '<p>foo[</p>]bar',
+        '<p>foo{</p>}bar',
+        '<p>foo[</p>]bar<br>baz',
+        '<p>foo[</p>]bar<p>baz</p>',
+        'foo[<div><p>]bar</div>',
+        '<div><p>foo[</p></div>]bar',
+        'foo[<div><p>]bar</p>baz</div>',
+        'foo[<div>]bar<p>baz</p></div>',
+        '<div><p>foo</p>bar[</div>]baz',
+        '<div>foo<p>bar[</p></div>]baz',
+
+        '<p>foo<br>{</p>]bar',
+        '<p>foo<br><br>{</p>]bar',
+        'foo<br>{<p>]bar</p>',
+        'foo<br><br>{<p>]bar</p>',
+        '<p>foo<br>{</p><p>}bar</p>',
+        '<p>foo<br><br>{</p><p>}bar</p>',
+
+        '<table><tbody><tr><th>foo<th>[bar]<th>baz<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>foo<th>ba[r<th>b]az<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>fo[o<th>bar<th>b]az<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>foo<th>bar<th>ba[z<tr><td>q]uz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>[foo<th>bar<th>baz]<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>[foo<th>bar<th>baz<tr><td>quz<td>qoz<td>qiz]</table>',
+        '{<table><tbody><tr><th>foo<th>bar<th>baz<tr><td>quz<td>qoz<td>qiz</table>}',
+        '<table><tbody><tr><td>foo<td>ba[r<tr><td>baz<td>quz<tr><td>q]oz<td>qiz</table>',
+        '<p>fo[o<table><tr><td>b]ar</table><p>baz',
+        '<p>foo<table><tr><td>ba[r</table><p>b]az',
+        '<p>fo[o<table><tr><td>bar</table><p>b]az',
+
+        '<p>foo<ol><li>ba[r<li>b]az</ol><p>quz',
+        '<p>foo<ol><li>bar<li>[baz]</ol><p>quz',
+        '<p>fo[o<ol><li>b]ar<li>baz</ol><p>quz',
+        '<p>foo<ol><li>bar<li>ba[z</ol><p>q]uz',
+        '<p>fo[o<ol><li>bar<li>b]az</ol><p>quz',
+        '<p>fo[o<ol><li>bar<li>baz</ol><p>q]uz',
+
+        '<ol><li>fo[o</ol><ol><li>b]ar</ol>',
+        '<ol><li>fo[o</ol><ul><li>b]ar</ul>',
+
+        'foo[<ol><li>]bar</ol>',
+        '<ol><li>foo[<li>]bar</ol>',
+        'foo[<dl><dt>]bar<dd>baz</dl>',
+        'foo[<dl><dd>]bar</dl>',
+        '<dl><dt>foo[<dd>]bar</dl>',
+        '<dl><dt>foo[<dt>]bar<dd>baz</dl>',
+        '<dl><dt>foo<dd>bar[<dd>]baz</dl>',
+
+        '<b>foo [&nbsp;</b>bar]',
+        'foo<b> [&nbsp;bar]</b>',
+        '<b>[foo&nbsp;] </b>bar',
+        '[foo<b>&nbsp;] bar</b>',
+
+        // Do we merge based on element names or the display property?
+        '<p style=display:inline>fo[o<p style=display:inline>b]ar',
+        '<span style=display:block>fo[o</span><span style=display:block>b]ar</span>',
+        '<span style=display:inline-block>fo[o</span><span style=display:inline-block>b]ar</span>',
+        '<span style=display:inline-table>fo[o</span><span style=display:inline-table>b]ar</span>',
+        '<span style=display:none>fo[o</span><span style=display:none>b]ar</span>',
+        '<quasit style=display:block>fo[o</quasit><quasit style=display:block>b]ar</quasit>',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=35281
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=13976
+        '<ol><li>foo</ol>{}<br><ol><li>bar</ol>',
+        '<ol><li>foo</ol><p>{}<br></p><ol><li>bar</ol>',
+        '<ol><li><p>foo</ol><p>{}<br></p><ol><li>bar</ol>',
+        '<ol id=a><li>foo</ol>{}<br><ol><li>bar</ol>',
+        '<ol><li>foo</ol>{}<br><ol id=b><li>bar</ol>',
+        '<ol id=a><li>foo</ol>{}<br><ol id=b><li>bar</ol>',
+        '<ol class=a><li>foo</ol>{}<br><ol class=b><li>bar</ol>',
+        // Broken test: http://www.w3.org/Bugs/Public/show_bug.cgi?id=14727
+        '!<ol><ol><li>foo</ol><li>{}<br><ol><li>bar</ol></ol>',
+        '<ol><ol><li>foo</ol><li>{}<br></li><ol><li>bar</ol></ol>',
+        '<ol><li>foo[</ol>bar]<ol><li>baz</ol>',
+        '<ol><li>foo[</ol><p>bar]<ol><li>baz</ol>',
+        '<ol><li><p>foo[</ol><p>bar]<ol><li>baz</ol>',
+        '<ol><li>foo[]</ol><ol><li>bar</ol>',
+        '<ol><li>foo</ol>[bar<ol><li>]baz</ol>',
+        '<ol><li>foo</ol><p>[bar<ol><li>]baz</ol>',
+        '<ol><li>foo</ol><p>[bar<ol><li><p>]baz</ol>',
+        '<ol><li>foo</ol><ol><li>b[]ar</ol>',
+        '<ol><ol><li>foo[</ol><li>bar</ol>baz]<ol><li>quz</ol>',
+        '<ul><li>foo</ul>{}<br><ul><li>bar</ul>',
+        '<ul><li>foo</ul><p>{}<br></p><ul><li>bar</ul>',
+        '<ol><li>foo[<li>bar]</ol><ol><li>baz</ol><ol><li>quz</ol>',
+        '<ol><li>foo</ol>{}<br><ul><li>bar</ul>',
+        '<ol><li>foo</ol><p>{}<br></p><ul><li>bar</ul>',
+        '<ul><li>foo</ul>{}<br><ol><li>bar</ol>',
+        '<ul><li>foo</ul><p>{}<br></p><ol><li>bar</ol>',
+
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=13831
+        '<p><b>[foo]</b>',
+        '<p><quasit>[foo]</quasit>',
+        '<p><b><i>[foo]</i></b>',
+        '<p><b>{foo}</b>',
+        '<p>{<b>foo</b>}',
+        '<p><b>f[]</b>',
+        '<b>[foo]</b>',
+        '<div><b>[foo]</b></div>',
+    ],
+    //@}
+    fontname: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<code>[bar]</code>baz',
+        'foo<kbd>[bar]</kbd>baz',
+        'foo<listing>[bar]</listing>baz',
+        'foo<pre>[bar]</pre>baz',
+        'foo<samp>[bar]</samp>baz',
+        'foo<tt>[bar]</tt>baz',
+
+        'foo<code>b[a]r</code>baz',
+        'foo<kbd>b[a]r</kbd>baz',
+        'foo<listing>b[a]r</listing>baz',
+        'foo<pre>b[a]r</pre>baz',
+        'foo<samp>b[a]r</samp>baz',
+        'foo<tt>b[a]r</tt>baz',
+
+        '[foo<code>bar</code>baz]',
+        '[foo<kbd>bar</kbd>baz]',
+        '[foo<listing>bar</listing>baz]',
+        '[foo<pre>bar</pre>baz]',
+        '[foo<samp>bar</samp>baz]',
+        '[foo<tt>bar</tt>baz]',
+
+        '[foo<code>ba]r</code>baz',
+        '[foo<kbd>ba]r</kbd>baz',
+        '[foo<listing>ba]r</listing>baz',
+        '[foo<pre>ba]r</pre>baz',
+        '[foo<samp>ba]r</samp>baz',
+        '[foo<tt>ba]r</tt>baz',
+
+        'foo<code>b[ar</code>baz]',
+        'foo<kbd>b[ar</kbd>baz]',
+        'foo<listing>b[ar</listing>baz]',
+        'foo<pre>b[ar</pre>baz]',
+        'foo<samp>b[ar</samp>baz]',
+        'foo<tt>b[ar</tt>baz]',
+
+        'foo<span style="font-family: sans-serif">[bar]</span>baz',
+        'foo<span style="font-family: sans-serif">b[a]r</span>baz',
+        'foo<span style="font-family: monospace">[bar]</span>baz',
+        'foo<span style="font-family: monospace">b[a]r</span>baz',
+
+        'foo<tt contenteditable=false>ba[r</tt>b]az',
+        'fo[o<tt contenteditable=false>b]ar</tt>baz',
+        'foo<tt>{}<br></tt>bar',
+        'foo<tt>{<br></tt>}bar',
+        'foo<tt>{<br></tt>b]ar',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<span style=font-family:monospace>b]ar</span>baz',
+        'foo<span style=font-family:monospace>ba[r</span>b]az',
+        'fo[o<span style=font-family:monospace>bar</span>b]az',
+        'foo[<span style=font-family:monospace>b]ar</span>baz',
+        'foo<span style=font-family:monospace>ba[r</span>]baz',
+        'foo[<span style=font-family:monospace>bar</span>]baz',
+        'foo<span style=font-family:monospace>[bar]</span>baz',
+        'foo{<span style=font-family:monospace>bar</span>}baz',
+        'fo[o<code>b]ar</code>',
+        'fo[o<kbd>b]ar</kbd>',
+        'fo[o<listing>b]ar</listing>',
+        'fo[o<pre>b]ar</pre>',
+        'fo[o<samp>b]ar</samp>',
+        'fo[o<tt>b]ar</tt>',
+        '<tt>fo[o</tt><code>b]ar</code>',
+        '<pre>fo[o</pre><samp>b]ar</samp>',
+        '<span style=font-family:monospace>fo[o</span><kbd>b]ar</kbd>',
+    ],
+    //@}
+    fontsize: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        ["1", 'foo[bar]baz'],
+        ["0", 'foo[bar]baz'],
+        ["-5", 'foo[bar]baz'],
+        ["6", 'foo[bar]baz'],
+        ["7", 'foo[bar]baz'],
+        ["8", 'foo[bar]baz'],
+        ["100", 'foo[bar]baz'],
+        ["2em", 'foo[bar]baz'],
+        ["20pt", 'foo[bar]baz'],
+        ["xx-large", 'foo[bar]baz'],
+        [" 1 ", 'foo[bar]baz'],
+        ["1.", 'foo[bar]baz'],
+        ["1.0", 'foo[bar]baz'],
+        ["1.0e2", 'foo[bar]baz'],
+        ["1.1", 'foo[bar]baz'],
+        ["1.9", 'foo[bar]baz'],
+        ["+0", 'foo[bar]baz'],
+        ["+1", 'foo[bar]baz'],
+        ["+9", 'foo[bar]baz'],
+        ["-0", 'foo[bar]baz'],
+        ["-1", 'foo[bar]baz'],
+        ["-9", 'foo[bar]baz'],
+        ["", 'foo[bar]baz'],
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<font size=1>[bar]</font>baz',
+        '<font size=1>foo[bar]baz</font>',
+        'foo<font size=3>[bar]</font>baz',
+        '<font size=3>foo[bar]baz</font>',
+        'foo<font size=4>[bar]</font>baz',
+        '<font size=4>foo[bar]baz</font>',
+        'foo<font size=+1>[bar]</font>baz',
+        '<font size=+1>foo[bar]baz</font>',
+        '<font size=4>foo<font size=1>b[a]r</font>baz</font>',
+
+        'foo<span style="font-size: xx-small">[bar]</span>baz',
+        '<span style="font-size: xx-small">foo[bar]baz</span>',
+        'foo<span style="font-size: medium">[bar]</span>baz',
+        '<span style="font-size: medium">foo[bar]baz</span>',
+        'foo<span style="font-size: large">[bar]</span>baz',
+        '<span style="font-size: large">foo[bar]baz</span>',
+        '<span style="font-size: large">foo<span style="font-size: xx-small">b[a]r</span>baz</span>',
+
+        'foo<span style="font-size: 2em">[bar]</span>baz',
+        '<span style="font-size: 2em">foo[bar]baz</span>',
+
+        '<p style="font-size: xx-small">foo[bar]baz</p>',
+        '<p style="font-size: medium">foo[bar]baz</p>',
+        '<p style="font-size: large">foo[bar]baz</p>',
+        '<p style="font-size: 2em">foo[bar]baz</p>',
+
+        ["3", '<p style="font-size: xx-small">foo[bar]baz</p>'],
+        ["3", '<p style="font-size: medium">foo[bar]baz</p>'],
+        ["3", '<p style="font-size: large">foo[bar]baz</p>'],
+        ["3", '<p style="font-size: 2em">foo[bar]baz</p>'],
+
+        // Minor algorithm bug: this changes the size of the "b" and "r" in
+        // "bar" when we pull down styles
+        ["3", '<font size=6>foo <span style="font-size: 2em">b[a]r</span> baz</font>'],
+
+        ["3", 'foo<big>[bar]</big>baz'],
+        ["3", 'foo<big>b[a]r</big>baz'],
+        ["3", 'foo<small>[bar]</small>baz'],
+        ["3", 'foo<small>b[a]r</small>baz'],
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<font size=2>b]ar</font>baz',
+        'foo<font size=2>ba[r</font>b]az',
+        'fo[o<font size=2>bar</font>b]az',
+        'foo[<font size=2>b]ar</font>baz',
+        'foo<font size=2>ba[r</font>]baz',
+        'foo[<font size=2>bar</font>]baz',
+        'foo<font size=2>[bar]</font>baz',
+        'foo{<font size=2>bar</font>}baz',
+        '<font size=1>fo[o</font><span style=font-size:xx-small>b]ar</span>',
+        '<font size=2>fo[o</font><span style=font-size:small>b]ar</span>',
+        '<font size=3>fo[o</font><span style=font-size:medium>b]ar</span>',
+        '<font size=4>fo[o</font><span style=font-size:large>b]ar</span>',
+        '<font size=5>fo[o</font><span style=font-size:x-large>b]ar</span>',
+        '<font size=6>fo[o</font><span style=font-size:xx-large>b]ar</span>',
+
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=13829
+        ["!6", '<span style=background-color:aqua>[foo]</span>'],
+        ["!6", '<span style=background-color:aqua>foo[bar]baz</span>'],
+        ["!6", '[foo<span style=background-color:aqua>bar</span>baz]'],
+    ],
+    //@}
+    forecolor: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        ['blue', 'foo[bar]baz'],
+        ['f', 'foo[bar]baz'],
+        ['#f', 'foo[bar]baz'],
+        ['00f', 'foo[bar]baz'],
+        ['#00f', 'foo[bar]baz'],
+        ['0000ff', 'foo[bar]baz'],
+        ['#0000ff', 'foo[bar]baz'],
+        ['000000fff', 'foo[bar]baz'],
+        ['#000000fff', 'foo[bar]baz'],
+        ['rgb(0, 0, 255)', 'foo[bar]baz'],
+        ['rgb(0%, 0%, 100%)', 'foo[bar]baz'],
+        ['rgb( 0 ,0 ,255)', 'foo[bar]baz'],
+        ['rgba(0, 0, 255, 0.0)', 'foo[bar]baz'],
+        ['rgb(15, -10, 375)', 'foo[bar]baz'],
+        ['rgba(0, 0, 0, 1)', 'foo[bar]baz'],
+        ['rgba(255, 255, 255, 1)', 'foo[bar]baz'],
+        ['rgba(0, 0, 255, 0.5)', 'foo[bar]baz'],
+        ['hsl(240, 100%, 50%)', 'foo[bar]baz'],
+        ['cornsilk', 'foo[bar]baz'],
+        ['potato quiche', 'foo[bar]baz'],
+        ['transparent', 'foo[bar]baz'],
+        ['currentColor', 'foo[bar]baz'],
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<font color=blue>[bar]</font>baz',
+        'foo{<font color=blue>bar</font>}baz',
+        '<span style="color: blue">foo<span style="color: brown">[bar]</span>baz</span>',
+        '<span style="color: #00f">foo<span style="color: brown">[bar]</span>baz</span>',
+        '<span style="color: #0000ff">foo<span style="color: brown">[bar]</span>baz</span>',
+        '<span style="color: rgb(0, 0, 255)">foo<span style="color: brown">[bar]</span>baz</span>',
+        '<font color=blue>foo<font color=brown>[bar]</font>baz</font>',
+        '<span style="color: rgb(0, 0, 255)">foo<span style="color: brown">b[ar]</span>baz</span>',
+        'foo<span id=purple>ba[r</span>ba]z',
+        '<span style="color: rgb(0, 0, 255)">foo<span id=purple>b[a]r</span>baz</span>',
+
+        ['blue', '<a href=http://www.google.com>foo[bar]baz</a>'],
+        ['#0000ff', '<a href=http://www.google.com>foo[bar]baz</a>'],
+        ['rgb(0,0,255)', '<a href=http://www.google.com>foo[bar]baz</a>'],
+
+        // Tests for queryCommandValue()
+        '<font color="blue">[foo]</font>',
+        '<font color="0000ff">[foo]</font>',
+        '<font color="#0000ff">[foo]</font>',
+        '<span style="color: blue">[foo]</span>',
+        '<span style="color: #0000ff">[foo]</span>',
+        '<span style="color: rgb(0, 0, 255)">[foo]</span>',
+        '<span style="color: rgb(0%, 0%, 100%)">[foo]</span>',
+        '<span style="color: rgb( 0 ,0 ,255)">[foo]</span>',
+        '<span style="color: rgba(0, 0, 255, 0.0)">[foo]</span>',
+        '<span style="color: rgb(15, -10, 375)">[foo]</span>',
+        '<span style="color: rgba(0, 0, 0, 1)">[foo]</span>',
+        '<span style="color: rgba(255, 255, 255, 1)">[foo]</span>',
+        '<span style="color: rgba(0, 0, 255, 0.5)">[foo]</span>',
+        '<span style="color: hsl(240, 100%, 50%)">[foo]</span>',
+        '<span style="color: cornsilk">[foo]</span>',
+        '<span style="color: transparent">[foo]</span>',
+        '<span style="color: currentColor">[foo]</span>',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<font color=brown>b]ar</font>baz',
+        'foo<font color=brown>ba[r</font>b]az',
+        'fo[o<font color=brown>bar</font>b]az',
+        'foo[<font color=brown>b]ar</font>baz',
+        'foo<font color=brown>ba[r</font>]baz',
+        'foo[<font color=brown>bar</font>]baz',
+        'foo<font color=brown>[bar]</font>baz',
+        'foo{<font color=brown>bar</font>}baz',
+        '<font color=brown>fo[o</font><span style=color:brown>b]ar</span>',
+        '<span style=color:brown>fo[o</span><span style=color:#0000ff>b]ar</span>',
+    ],
+    //@}
+    formatblock: [
+    //@{
+        'foo[]bar<p>extra',
+        '<span>foo</span>{}<span>bar</span><p>extra',
+        '<span>foo[</span><span>]bar</span><p>extra',
+        'foo[bar]baz<p>extra',
+        'foo]bar[baz<p>extra',
+        '{<p><p> <p>foo</p>}',
+        'foo[bar<i>baz]qoz</i>quz<p>extra',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        '<div>[foobar]</div>',
+        '<p>[foobar]</p>',
+        '<blockquote>[foobar]</blockquote>',
+        '<h1>[foobar]</h1>',
+        '<h2>[foobar]</h2>',
+        '<h3>[foobar]</h3>',
+        '<h4>[foobar]</h4>',
+        '<h5>[foobar]</h5>',
+        '<h6>[foobar]</h6>',
+        '<dl><dt>[foo]<dd>bar</dl>',
+        '<dl><dt>foo<dd>[bar]</dl>',
+        '<dl><dt>[foo<dd>bar]</dl>',
+        '<ol><li>[foobar]</ol>',
+        '<ul><li>[foobar]</ul>',
+        '<address>[foobar]</address>',
+        '<pre>[foobar]</pre>',
+        '<article>[foobar]</article>',
+        '<ins>[foobar]</ins>',
+        '<del>[foobar]</del>',
+        '<quasit>[foobar]</quasit>',
+        '<quasit style="display: block">[foobar]</quasit>',
+
+        ['<p>', 'foo[]bar<p>extra'],
+        ['<p>', '<span>foo</span>{}<span>bar</span><p>extra'],
+        ['<p>', '<span>foo[</span><span>]bar</span><p>extra'],
+        ['<p>', 'foo[bar]baz<p>extra'],
+        ['<p>', 'foo]bar[baz<p>extra'],
+        ['<p>', '{<p><p> <p>foo</p>}'],
+        ['<p>', 'foo[bar<i>baz]qoz</i>quz<p>extra'],
+
+        ['<p>', '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>'],
+        ['<p>', '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>'],
+        ['<p>', '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>'],
+        ['<p>', '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>'],
+        ['<p>', '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>'],
+        ['<p>', '{<table><tr><td>foo<td>bar<td>baz</table>}'],
+
+        ['<p>', '<div>[foobar]</div>'],
+        ['<p>', '<p>[foobar]</p>'],
+        ['<p>', '<blockquote>[foobar]</blockquote>'],
+        ['<p>', '<h1>[foobar]</h1>'],
+        ['<p>', '<h2>[foobar]</h2>'],
+        ['<p>', '<h3>[foobar]</h3>'],
+        ['<p>', '<h4>[foobar]</h4>'],
+        ['<p>', '<h5>[foobar]</h5>'],
+        ['<p>', '<h6>[foobar]</h6>'],
+        ['<p>', '<dl><dt>[foo]<dd>bar</dl>'],
+        ['<p>', '<dl><dt>foo<dd>[bar]</dl>'],
+        ['<p>', '<dl><dt>[foo<dd>bar]</dl>'],
+        ['<p>', '<ol><li>[foobar]</ol>'],
+        ['<p>', '<ul><li>[foobar]</ul>'],
+        ['<p>', '<address>[foobar]</address>'],
+        ['<p>', '<pre>[foobar]</pre>'],
+        ['<p>', '<listing>[foobar]</listing>'],
+        ['<p>', '<xmp>[foobar]</xmp>'],
+        ['<p>', '<article>[foobar]</article>'],
+        ['<p>', '<ins>[foobar]</ins>'],
+        ['<p>', '<del>[foobar]</del>'],
+        ['<p>', '<quasit>[foobar]</quasit>'],
+        ['<p>', '<quasit style="display: block">[foobar]</quasit>'],
+
+        ['<blockquote>', '<blockquote>[foo]</blockquote><p>extra'],
+        ['<blockquote>', '<blockquote><p>[foo]<p>bar</blockquote><p>extra'],
+        ['<blockquote>', '[foo]<blockquote>bar</blockquote><p>extra'],
+        ['<blockquote>', '<p>[foo<p>bar]<p>baz'],
+        ['<blockquote>', '<section>[foo]</section>'],
+        ['<blockquote>', '<section><p>[foo]</section>'],
+        ['<blockquote>', '<section><hgroup><h1>[foo]</h1><h2>bar</h2></hgroup><p>baz</section>'],
+        ['<article>', '<section>[foo]</section>'],
+
+        ['<address>', '<div>[foobar]</div>'],
+        ['<article>', '<div>[foobar]</div>'],
+        ['<blockquote>', '<div>[foobar]</div>'],
+        ['<dd>', '<div>[foobar]</div>'],
+        ['<del>', '<div>[foobar]</div>'],
+        ['<dl>', '<div>[foobar]</div>'],
+        ['<dt>', '<div>[foobar]</div>'],
+        ['<h1>', '<div>[foobar]</div>'],
+        ['<h2>', '<div>[foobar]</div>'],
+        ['<h3>', '<div>[foobar]</div>'],
+        ['<h4>', '<div>[foobar]</div>'],
+        ['<h5>', '<div>[foobar]</div>'],
+        ['<h6>', '<div>[foobar]</div>'],
+        ['<ins>', '<div>[foobar]</div>'],
+        ['<li>', '<div>[foobar]</div>'],
+        ['<ol>', '<div>[foobar]</div>'],
+        ['<pre>', '<div>[foobar]</div>'],
+        ['<ul>', '<div>[foobar]</div>'],
+        ['<quasit>', '<div>[foobar]</div>'],
+
+        ['<address>', '<p>[foobar]</p>'],
+        ['<article>', '<p>[foobar]</p>'],
+        ['<aside>', '<p>[foobar]</p>'],
+        ['<blockquote>', '<p>[foobar]</p>'],
+        ['<body>', '<p>[foobar]</p>'],
+        ['<dd>', '<p>[foobar]</p>'],
+        ['<del>', '<p>[foobar]</p>'],
+        ['<details>', '<p>[foobar]</p>'],
+        ['<dir>', '<p>[foobar]</p>'],
+        ['<dl>', '<p>[foobar]</p>'],
+        ['<dt>', '<p>[foobar]</p>'],
+        ['<fieldset>', '<p>[foobar]</p>'],
+        ['<figcaption>', '<p>[foobar]</p>'],
+        ['<figure>', '<p>[foobar]</p>'],
+        ['<footer>', '<p>[foobar]</p>'],
+        ['<form>', '<p>[foobar]</p>'],
+        ['<h1>', '<p>[foobar]</p>'],
+        ['<h2>', '<p>[foobar]</p>'],
+        ['<h3>', '<p>[foobar]</p>'],
+        ['<h4>', '<p>[foobar]</p>'],
+        ['<h5>', '<p>[foobar]</p>'],
+        ['<h6>', '<p>[foobar]</p>'],
+        ['<header>', '<p>[foobar]</p>'],
+        ['<head>', '<p>[foobar]</p>'],
+        ['<hgroup>', '<p>[foobar]</p>'],
+        ['<hr>', '<p>[foobar]</p>'],
+        ['<html>', '<p>[foobar]</p>'],
+        ['<ins>', '<p>[foobar]</p>'],
+        ['<li>', '<p>[foobar]</p>'],
+        ['<listing>', '<p>[foobar]</p>'],
+        ['<menu>', '<p>[foobar]</p>'],
+        ['<nav>', '<p>[foobar]</p>'],
+        ['<ol>', '<p>[foobar]</p>'],
+        ['<plaintext>', '<p>[foobar]</p>'],
+        ['<pre>', '<p>[foobar]</p>'],
+        ['<section>', '<p>[foobar]</p>'],
+        ['<ul>', '<p>[foobar]</p>'],
+        ['<xmp>', '<p>[foobar]</p>'],
+        ['<quasit>', '<p>[foobar]</p>'],
+
+        ['<address>', '<p>[foo<p>bar]'],
+        ['<article>', '<p>[foo<p>bar]'],
+        ['<aside>', '<p>[foo<p>bar]'],
+        ['<blockquote>', '<p>[foo<p>bar]'],
+        ['<body>', '<p>[foo<p>bar]'],
+        ['<dd>', '<p>[foo<p>bar]'],
+        ['<del>', '<p>[foo<p>bar]'],
+        ['<details>', '<p>[foo<p>bar]'],
+        ['<dir>', '<p>[foo<p>bar]'],
+        ['<div>', '<p>[foo<p>bar]'],
+        ['<dl>', '<p>[foo<p>bar]'],
+        ['<dt>', '<p>[foo<p>bar]'],
+        ['<fieldset>', '<p>[foo<p>bar]'],
+        ['<figcaption>', '<p>[foo<p>bar]'],
+        ['<figure>', '<p>[foo<p>bar]'],
+        ['<footer>', '<p>[foo<p>bar]'],
+        ['<form>', '<p>[foo<p>bar]'],
+        ['<h1>', '<p>[foo<p>bar]'],
+        ['<h2>', '<p>[foo<p>bar]'],
+        ['<h3>', '<p>[foo<p>bar]'],
+        ['<h4>', '<p>[foo<p>bar]'],
+        ['<h5>', '<p>[foo<p>bar]'],
+        ['<h6>', '<p>[foo<p>bar]'],
+        ['<header>', '<p>[foo<p>bar]'],
+        ['<head>', '<p>[foo<p>bar]'],
+        ['<hgroup>', '<p>[foo<p>bar]'],
+        ['<hr>', '<p>[foo<p>bar]'],
+        ['<html>', '<p>[foo<p>bar]'],
+        ['<ins>', '<p>[foo<p>bar]'],
+        ['<li>', '<p>[foo<p>bar]'],
+        ['<listing>', '<p>[foo<p>bar]'],
+        ['<menu>', '<p>[foo<p>bar]'],
+        ['<nav>', '<p>[foo<p>bar]'],
+        ['<ol>', '<p>[foo<p>bar]'],
+        ['<p>', '<p>[foo<p>bar]'],
+        ['<plaintext>', '<p>[foo<p>bar]'],
+        ['<pre>', '<p>[foo<p>bar]'],
+        ['<section>', '<p>[foo<p>bar]'],
+        ['<ul>', '<p>[foo<p>bar]'],
+        ['<xmp>', '<p>[foo<p>bar]'],
+        ['<quasit>', '<p>[foo<p>bar]'],
+
+        ['p', '<div>[foobar]</div>'],
+
+        '<ol><li>[foo]<li>bar</ol>',
+
+        ['<p>', '<h1>[foo]<br>bar</h1>'],
+        ['<p>', '<h1>foo<br>[bar]</h1>'],
+        ['<p>', '<h1>[foo<br>bar]</h1>'],
+        ['<address>', '<h1>[foo]<br>bar</h1>'],
+        ['<address>', '<h1>foo<br>[bar]</h1>'],
+        ['<address>', '<h1>[foo<br>bar]</h1>'],
+        ['<pre>', '<h1>[foo]<br>bar</h1>'],
+        ['<pre>', '<h1>foo<br>[bar]</h1>'],
+        ['<pre>', '<h1>[foo<br>bar]</h1>'],
+        ['<h2>', '<h1>[foo]<br>bar</h1>'],
+        ['<h2>', '<h1>foo<br>[bar]</h1>'],
+        ['<h2>', '<h1>[foo<br>bar]</h1>'],
+
+        ['<h1>', '<p>[foo]<br>bar</p>'],
+        ['<h1>', '<p>foo<br>[bar]</p>'],
+        ['<h1>', '<p>[foo<br>bar]</p>'],
+        ['<address>', '<p>[foo]<br>bar</p>'],
+        ['<address>', '<p>foo<br>[bar]</p>'],
+        ['<address>', '<p>[foo<br>bar]</p>'],
+        ['<pre>', '<p>[foo]<br>bar</p>'],
+        ['<pre>', '<p>foo<br>[bar]</p>'],
+        ['<pre>', '<p>[foo<br>bar]</p>'],
+
+        ['<p>', '<address>[foo]<br>bar</address>'],
+        ['<p>', '<address>foo<br>[bar]</address>'],
+        ['<p>', '<address>[foo<br>bar]</address>'],
+        ['<pre>', '<address>[foo]<br>bar</address>'],
+        ['<pre>', '<address>foo<br>[bar]</address>'],
+        ['<pre>', '<address>[foo<br>bar]</address>'],
+        ['<h1>', '<address>[foo]<br>bar</address>'],
+        ['<h1>', '<address>foo<br>[bar]</address>'],
+        ['<h1>', '<address>[foo<br>bar]</address>'],
+
+        ['<p>', '<pre>[foo]<br>bar</pre>'],
+        ['<p>', '<pre>foo<br>[bar]</pre>'],
+        ['<p>', '<pre>[foo<br>bar]</pre>'],
+        ['<address>', '<pre>[foo]<br>bar</pre>'],
+        ['<address>', '<pre>foo<br>[bar]</pre>'],
+        ['<address>', '<pre>[foo<br>bar]</pre>'],
+        ['<h1>', '<pre>[foo]<br>bar</pre>'],
+        ['<h1>', '<pre>foo<br>[bar]</pre>'],
+        ['<h1>', '<pre>[foo<br>bar]</pre>'],
+
+        ['<h1>', '<p>[foo</p>bar]'],
+        ['<h1>', '[foo<p>bar]</p>'],
+        ['<p>', '<div>[foo<p>bar]</p></div>'],
+        ['<p>', '<xmp>[foo]</xmp>'],
+        ['<div>', '<xmp>[foo]</xmp>'],
+
+        '<div><ol><li>[foo]</ol></div>',
+        '<div><table><tr><td>[foo]</table></div>',
+        '<p>[foo<h1>bar]</h1>',
+        '<h1>[foo</h1><h2>bar]</h2>',
+        '<div>[foo</div>bar]',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=47054
+        ['<p>', '<div style=color:blue>[foo]</div>'],
+        // https://bugs.webkit.org/show_bug.cgi?id=47574
+        ['<h1>', '{<p>foo</p>ba]r'],
+        ['<pre>', '&#10;[foo<p>bar]</p>'],
+        // From https://bugs.webkit.org/show_bug.cgi?id=47300
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14009
+        ['!<p>', '{<pre>&#10;foo&#10;&#10;bar&#10;</pre>}'],
+    ],
+    //@}
+    forwarddelete: [
+    //@{
+        // Collapsed selection
+        'foo[]',
+        '<span>foo[]</span>',
+        '<p>foo[]</p>',
+        'foo[]bar',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[]<span style=display:none>bar</span>baz',
+        'foo[]<script>bar</script>baz',
+        'fo[]&ouml;bar',
+        'fo[]o&#x308;bar',
+        'fo[]o&#x308;&#x327;bar',
+        '[]&ouml;bar',
+        '[]o&#x308;bar',
+        '[]o&#x308;&#x327;bar',
+
+        '[]&#x5e9;&#x5c1;&#x5b8;&#x5dc;&#x5d5;&#x5b9;&#x5dd;',
+        '&#x5e9;&#x5c1;&#x5b8;&#x5dc;[]&#x5d5;&#x5b9;&#x5dd;',
+
+        '<p>foo[]</p><p>bar</p>',
+        '<p>foo[]</p>bar',
+        'foo[]<p>bar</p>',
+        '<p>foo[]<br></p><p>bar</p>',
+        '<p>foo[]<br></p>bar',
+        'foo[]<br><p>bar</p>',
+
+        '<p>{}<br></p>foo',
+        '<p>{}<span><br></span></p>foo',
+        'foo{}<p><br>',
+        'foo{}<p><span><br></span>',
+        'foo{}<br><p><br>',
+        'foo{}<span><br></span><p><br>',
+        'foo{}<br><p><span><br></span>',
+        'foo{}<span><br></span><p><span><br></span>',
+        'foo{}<p>',
+        '<table><tr><td>{}</table>foo',
+        '<table><tr><td>{}<br></table>foo',
+        '<table><tr><td>{}<span><br></span></table>foo',
+
+        '<div><p>foo[]</p></div><p>bar</p>',
+        '<p>foo[]</p><div><p>bar</p></div>',
+        '<div><p>foo[]</p></div><div><p>bar</p></div>',
+        '<div><p>foo[]</p></div>bar',
+        'foo[]<div><p>bar</p></div>',
+
+        '<div>foo[]</div><div>bar</div>',
+        '<pre>foo[]</pre>bar',
+
+        'foo[]<br>bar',
+        '<b>foo[]</b><br>bar',
+        'foo[]<hr>bar',
+        '<p>foo[]<hr><p>bar',
+        '<p>foo[]</p><br><p>bar</p>',
+        '<p>foo[]</p><br><br><p>bar</p>',
+        '<p>foo[]</p><img src=/img/lion.svg><p>bar',
+        'foo[]<img src=/img/lion.svg>bar',
+
+        'foo[]<a>bar</a>',
+        'foo[]<a href=/>bar</a>',
+        'foo[]<a name=abc>bar</a>',
+        'foo[]<a href=/ name=abc>bar</a>',
+        'foo[]<span><a>bar</a></span>',
+        'foo[]<span><a href=/>bar</a></span>',
+        'foo[]<span><a name=abc>bar</a></span>',
+        'foo[]<span><a href=/ name=abc>bar</a></span>',
+        '<a>foo[]</a>bar',
+        '<a href=/>foo[]</a>bar',
+        '<a name=abc>foo[]</a>bar',
+        '<a href=/ name=abc>foo[]</a>bar',
+
+        'foo []&nbsp;',
+        '[]&nbsp; foo',
+        'foo[] &nbsp;bar',
+        'foo[]&nbsp; bar',
+        'foo[]&nbsp;&nbsp;bar',
+        'foo[]  bar',
+        'foo[] &nbsp; bar',
+        'foo []&nbsp; bar',
+        'foo &nbsp;[] bar',
+        'foo[] <span>&nbsp;</span> bar',
+        'foo []<span>&nbsp;</span> bar',
+        'foo <span>&nbsp;</span>[] bar',
+        '<b>foo[] </b>&nbsp;bar',
+        '<b>foo[]&nbsp;</b> bar',
+        '<b>foo[]&nbsp;</b>&nbsp;bar',
+        '<b>foo[] </b> bar',
+
+        '<pre>foo []&nbsp;</pre>',
+        '<pre>[]&nbsp; foo</pre>',
+        '<pre>foo[] &nbsp;bar</pre>',
+        '<pre>foo[]&nbsp; bar</pre>',
+        '<pre>foo[]  bar</pre>',
+
+        '<div style=white-space:pre>foo []&nbsp;</div>',
+        '<div style=white-space:pre>[]&nbsp; foo</div>',
+        '<div style=white-space:pre>foo[] &nbsp;bar</div>',
+        '<div style=white-space:pre>foo[]&nbsp; bar</div>',
+        '<div style=white-space:pre>foo[]  bar</div>',
+
+        '<div style=white-space:pre-wrap>foo []&nbsp;</div>',
+        '<div style=white-space:pre-wrap>[]&nbsp; foo</div>',
+        '<div style=white-space:pre-wrap>foo[] &nbsp;bar</div>',
+        '<div style=white-space:pre-wrap>foo[]&nbsp; bar</div>',
+        '<div style=white-space:pre-wrap>foo[]  bar</div>',
+
+        '<div style=white-space:pre-line>foo []&nbsp;</div>',
+        '<div style=white-space:pre-line>[]&nbsp; foo</div>',
+        '<div style=white-space:pre-line>foo[] &nbsp;bar</div>',
+        '<div style=white-space:pre-line>foo[]&nbsp; bar</div>',
+        '<div style=white-space:pre-line>foo[]  bar</div>',
+
+        '<div style=white-space:nowrap>foo []&nbsp;</div>',
+        '<div style=white-space:nowrap>[]&nbsp; foo</div>',
+        '<div style=white-space:nowrap>foo[] &nbsp;bar</div>',
+        '<div style=white-space:nowrap>foo[]&nbsp; bar</div>',
+        '<div style=white-space:nowrap>foo[]  bar</div>',
+
+        // Tables with collapsed selection
+        'foo[]<table><tr><td>bar</table>baz',
+        'foo<table><tr><td>bar[]</table>baz',
+        '<p>foo[]<table><tr><td>bar</table><p>baz',
+        '<table><tr><td>foo[]<td>bar</table>',
+        '<table><tr><td>foo[]<tr><td>bar</table>',
+
+        'foo[]<br><table><tr><td>bar</table>baz',
+        'foo<table><tr><td>bar[]<br></table>baz',
+        '<p>foo[]<br><table><tr><td>bar</table><p>baz',
+        '<p>foo<table><tr><td>bar[]<br></table><p>baz',
+        '<table><tr><td>foo[]<br><td>bar</table>',
+        '<table><tr><td>foo[]<br><tr><td>bar</table>',
+
+        'foo<table><tr><td>bar[]</table><br>baz',
+        'foo[]<table><tr><td><hr>bar</table>baz',
+        '<table><tr><td>foo[]<td><hr>bar</table>',
+        '<table><tr><td>foo[]<tr><td><hr>bar</table>',
+
+        // Lists with collapsed selection
+        'foo[]<ol><li>bar<li>baz</ol>',
+        'foo[]<br><ol><li>bar<li>baz</ol>',
+        '<ol><li>foo[]<li>bar</ol>',
+        '<ol><li>foo[]<br><li>bar</ol>',
+        '<ol><li>foo[]<li>bar<br>baz</ol>',
+
+        '<ol><li><p>foo[]<li>bar</ol>',
+        '<ol><li>foo[]<li><p>bar</ol>',
+        '<ol><li><p>foo[]<li><p>bar</ol>',
+
+        '<ol><li>foo[]<ul><li>bar</ul></ol>',
+        'foo[]<ol><ol><li>bar</ol></ol>',
+        'foo[]<div><ol><li>bar</ol></div>',
+
+        'foo[]<dl><dt>bar<dd>baz</dl>',
+        'foo[]<dl><dd>bar</dl>',
+        '<dl><dt>foo[]<dd>bar</dl>',
+        '<dl><dt>foo[]<dt>bar<dd>baz</dl>',
+        '<dl><dt>foo<dd>bar[]<dd>baz</dl>',
+
+        '<ol><li>foo[]</ol>bar',
+        '<ol><li>foo[]<br></ol>bar',
+        '<ol><li>{}<br></ol>bar',
+        '<ol><li>foo<li>{}<br></ol>bar',
+
+        '<ol><li>foo[]</ol><p>bar',
+        '<ol><li>foo[]<br></ol><p>bar',
+        '<ol><li>{}<br></ol><p>bar',
+        '<ol><li>foo<li>{}<br></ol><p>bar',
+
+        '<ol><li>foo[]</ol><br>',
+        '<ol><li>foo[]<br></ol><br>',
+        '<ol><li>{}<br></ol><br>',
+        '<ol><li>foo<li>{}<br></ol><br>',
+
+        '<ol><li>foo[]</ol><p><br>',
+        '<ol><li>foo[]<br></ol><p><br>',
+        '<ol><li>{}<br></ol><p><br>',
+        '<ol><li>foo<li>{}<br></ol><p><br>',
+
+        // Indented stuff with collapsed selection
+        'foo[]<blockquote>bar</blockquote>',
+        'foo[]<blockquote><blockquote>bar</blockquote></blockquote>',
+        'foo[]<blockquote><div>bar</div></blockquote>',
+        'foo[]<blockquote style="color: blue">bar</blockquote>',
+
+        'foo[]<blockquote><blockquote><p>bar<p>baz</blockquote></blockquote>',
+        'foo[]<blockquote><div><p>bar<p>baz</div></blockquote>',
+        'foo[]<blockquote style="color: blue"><p>bar<p>baz</blockquote>',
+
+        'foo[]<blockquote><p><b>bar</b><p>baz</blockquote>',
+        'foo[]<blockquote><p><strong>bar</strong><p>baz</blockquote>',
+        'foo[]<blockquote><p><span>bar</span><p>baz</blockquote>',
+
+        'foo[]<blockquote><ol><li>bar</ol></blockquote><p>extra',
+        'foo[]<blockquote>bar<ol><li>baz</ol>quz</blockquote><p>extra',
+        'foo<blockquote><ol><li>bar[]</li><ol><li>baz</ol><li>quz</ol></blockquote><p>extra',
+
+        // Invisible stuff with collapsed selection
+        'foo[]<span></span>bar',
+        'foo[]<span><span></span></span>bar',
+        'foo[]<quasit></quasit>bar',
+        'foo[]<span></span><br>bar',
+        '<span>foo[]<span></span></span>bar',
+        'foo[]<span></span><span>bar</span>',
+        'foo[]<div><div><p>bar</div></div>',
+        'foo[]<div><div><p><!--abc-->bar</div></div>',
+        'foo[]<div><div><!--abc--><p>bar</div></div>',
+        'foo[]<div><!--abc--><div><p>bar</div></div>',
+        'foo[]<!--abc--><div><div><p>bar</div></div>',
+        '<div><div><p>foo[]</div></div>bar',
+        '<div><div><p>foo[]</div></div><!--abc-->bar',
+        '<div><div><p>foo[]</div><!--abc--></div>bar',
+        '<div><div><p>foo[]</p><!--abc--></div></div>bar',
+        '<div><div><p>foo[]<!--abc--></div></div>bar',
+        '<div><div><p>foo[]</p></div></div><div><div><div>bar</div></div></div>',
+        '<div><div><p>foo[]<!--abc--></p></div></div><div><div><div>bar</div></div></div>',
+        '<div><div><p>foo[]</p><!--abc--></div></div><div><div><div>bar</div></div></div>',
+        '<div><div><p>foo[]</p></div><!--abc--></div><div><div><div>bar</div></div></div>',
+        '<div><div><p>foo[]</p></div></div><!--abc--><div><div><div>bar</div></div></div>',
+        '<div><div><p>foo[]</p></div></div><div><!--abc--><div><div>bar</div></div></div>',
+        '<div><div><p>foo[]</p></div></div><div><div><!--abc--><div>bar</div></div></div>',
+        '<div><div><p>foo[]</p></div></div><div><div><div><!--abc-->bar</div></div></div>',
+
+        // Styled stuff with collapsed selection
+        '<p style=color:blue>foo[]<p>bar',
+        '<p style=color:blue>foo[]<p style=color:brown>bar',
+        '<p>foo[]<p style=color:brown>bar',
+        '<p><font color=blue>foo[]</font><p>bar',
+        '<p><font color=blue>foo[]</font><p><font color=brown>bar</font>',
+        '<p>foo[]<p><font color=brown>bar</font>',
+        '<p><span style=color:blue>foo[]</font><p>bar',
+        '<p><span style=color:blue>foo[]</font><p><span style=color:brown>bar</font>',
+        '<p>foo[]<p><span style=color:brown>bar</font>',
+
+        '<p style=background-color:aqua>foo[]<p>bar',
+        '<p style=background-color:aqua>foo[]<p style=background-color:tan>bar',
+        '<p>foo[]<p style=background-color:tan>bar',
+        '<p><span style=background-color:aqua>foo[]</font><p>bar',
+        '<p><span style=background-color:aqua>foo[]</font><p><span style=background-color:tan>bar</font>',
+        '<p>foo[]<p><span style=background-color:tan>bar</font>',
+
+        '<p style=text-decoration:underline>foo[]<p>bar',
+        '<p style=text-decoration:underline>foo[]<p style=text-decoration:line-through>bar',
+        '<p>foo[]<p style=text-decoration:line-through>bar',
+        '<p><u>foo[]</u><p>bar',
+        '<p><u>foo[]</u><p><s>bar</s>',
+        '<p>foo[]<p><s>bar</s>',
+
+        '<p style=color:blue>foo[]</p>bar',
+        'foo[]<p style=color:brown>bar',
+        '<div style=color:blue><p style=color:green>foo[]</div>bar',
+        '<div style=color:blue><p style=color:green>foo[]</div><p style=color:brown>bar',
+        '<p style=color:blue>foo[]<div style=color:brown><p style=color:green>bar',
+
+        // Uncollapsed selection (should be same as delete command)
+        'foo[bar]baz',
+        '<p>foo<span style=color:#aBcDeF>[bar]</span>baz',
+        '<p>foo<span style=color:#aBcDeF>{bar}</span>baz',
+        '<p>foo{<span style=color:#aBcDeF>bar</span>}baz',
+        '<p>[foo<span style=color:#aBcDeF>bar]</span>baz',
+        '<p>{foo<span style=color:#aBcDeF>bar}</span>baz',
+        '<p>foo<span style=color:#aBcDeF>[bar</span>baz]',
+        '<p>foo<span style=color:#aBcDeF>{bar</span>baz}',
+        '<p>foo<span style=color:#aBcDeF>[bar</span><span style=color:#fEdCbA>baz]</span>quz',
+
+        'foo<b>[bar]</b>baz',
+        'foo<b>{bar}</b>baz',
+        'foo{<b>bar</b>}baz',
+        'foo<span>[bar]</span>baz',
+        'foo<span>{bar}</span>baz',
+        'foo{<span>bar</span>}baz',
+        '<b>foo[bar</b><i>baz]quz</i>',
+        '<p>foo</p><p>[bar]</p><p>baz</p>',
+        '<p>foo</p><p>{bar}</p><p>baz</p>',
+        '<p>foo</p><p>{bar</p>}<p>baz</p>',
+        '<p>foo</p>{<p>bar}</p><p>baz</p>',
+        '<p>foo</p>{<p>bar</p>}<p>baz</p>',
+
+        '<p>foo[bar<p>baz]quz',
+        '<p>foo[bar<div>baz]quz</div>',
+        '<p>foo[bar<h1>baz]quz</h1>',
+        '<div>foo[bar</div><p>baz]quz',
+        '<blockquote>foo[bar</blockquote><pre>baz]quz</pre>',
+
+        '<p><b>foo[bar</b><p>baz]quz',
+        '<div><p>foo[bar</div><p>baz]quz',
+        '<p>foo[bar<blockquote><p>baz]quz<p>qoz</blockquote',
+        '<p>foo[bar<p style=color:blue>baz]quz',
+        '<p>foo[bar<p><b>baz]quz</b>',
+
+        '<div><p>foo<p>[bar<p>baz]</div>',
+
+        'foo[<br>]bar',
+        '<p>foo[</p><p>]bar</p>',
+        '<p>foo[</p><p>]bar<br>baz</p>',
+        'foo[<p>]bar</p>',
+        'foo{<p>}bar</p>',
+        'foo[<p>]bar<br>baz</p>',
+        'foo[<p>]bar</p>baz',
+        'foo{<p>bar</p>}baz',
+        'foo<p>{bar</p>}baz',
+        'foo{<p>bar}</p>baz',
+        '<p>foo[</p>]bar',
+        '<p>foo{</p>}bar',
+        '<p>foo[</p>]bar<br>baz',
+        '<p>foo[</p>]bar<p>baz</p>',
+        'foo[<div><p>]bar</div>',
+        '<div><p>foo[</p></div>]bar',
+        'foo[<div><p>]bar</p>baz</div>',
+        'foo[<div>]bar<p>baz</p></div>',
+        '<div><p>foo</p>bar[</div>]baz',
+        '<div>foo<p>bar[</p></div>]baz',
+
+        '<p>foo<br>{</p>]bar',
+        '<p>foo<br><br>{</p>]bar',
+        'foo<br>{<p>]bar</p>',
+        'foo<br><br>{<p>]bar</p>',
+        '<p>foo<br>{</p><p>}bar</p>',
+        '<p>foo<br><br>{</p><p>}bar</p>',
+
+        '<table><tbody><tr><th>foo<th>[bar]<th>baz<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>foo<th>ba[r<th>b]az<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>fo[o<th>bar<th>b]az<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>foo<th>bar<th>ba[z<tr><td>q]uz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>[foo<th>bar<th>baz]<tr><td>quz<td>qoz<td>qiz</table>',
+        '<table><tbody><tr><th>[foo<th>bar<th>baz<tr><td>quz<td>qoz<td>qiz]</table>',
+        '{<table><tbody><tr><th>foo<th>bar<th>baz<tr><td>quz<td>qoz<td>qiz</table>}',
+        '<table><tbody><tr><td>foo<td>ba[r<tr><td>baz<td>quz<tr><td>q]oz<td>qiz</table>',
+        '<p>fo[o<table><tr><td>b]ar</table><p>baz',
+        '<p>foo<table><tr><td>ba[r</table><p>b]az',
+        '<p>fo[o<table><tr><td>bar</table><p>b]az',
+
+        '<p>foo<ol><li>ba[r<li>b]az</ol><p>quz',
+        '<p>foo<ol><li>bar<li>[baz]</ol><p>quz',
+        '<p>fo[o<ol><li>b]ar<li>baz</ol><p>quz',
+        '<p>foo<ol><li>bar<li>ba[z</ol><p>q]uz',
+        '<p>fo[o<ol><li>bar<li>b]az</ol><p>quz',
+        '<p>fo[o<ol><li>bar<li>baz</ol><p>q]uz',
+
+        '<ol><li>fo[o</ol><ol><li>b]ar</ol>',
+        '<ol><li>fo[o</ol><ul><li>b]ar</ul>',
+
+        'foo[<ol><li>]bar</ol>',
+        '<ol><li>foo[<li>]bar</ol>',
+        'foo[<dl><dt>]bar<dd>baz</dl>',
+        'foo[<dl><dd>]bar</dl>',
+        '<dl><dt>foo[<dd>]bar</dl>',
+        '<dl><dt>foo[<dt>]bar<dd>baz</dl>',
+        '<dl><dt>foo<dd>bar[<dd>]baz</dl>',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=35281
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=13976
+        '<ol><li>foo</ol>{}<br><ol><li>bar</ol>',
+        '<ol><li>foo</ol><p>{}<br></p><ol><li>bar</ol>',
+        '<ol><li><p>foo</ol><p>{}<br></p><ol><li>bar</ol>',
+        '<ol id=a><li>foo</ol>{}<br><ol><li>bar</ol>',
+        '<ol><li>foo</ol>{}<br><ol id=b><li>bar</ol>',
+        '<ol id=a><li>foo</ol>{}<br><ol id=b><li>bar</ol>',
+        '<ol class=a><li>foo</ol>{}<br><ol class=b><li>bar</ol>',
+        '<ol><ol><li>foo</ol><li>{}<br><ol><li>bar</ol></ol>',
+        '<ol><ol><li>foo</ol><li>{}<br></li><ol><li>bar</ol></ol>',
+        '<ol><li>foo[</ol>bar]<ol><li>baz</ol>',
+        '<ol><li>foo[</ol><p>bar]<ol><li>baz</ol>',
+        '<ol><li><p>foo[</ol><p>bar]<ol><li>baz</ol>',
+        '<ol><li>fo[]o</ol><ol><li>bar</ol>',
+        '<ol><li>foo</ol>[bar<ol><li>]baz</ol>',
+        '<ol><li>foo</ol><p>[bar<ol><li>]baz</ol>',
+        '<ol><li>foo</ol><p>[bar<ol><li><p>]baz</ol>',
+        '<ol><li>foo</ol><ol><li>[]bar</ol>',
+        '<ol><ol><li>foo[</ol><li>bar</ol>baz]<ol><li>quz</ol>',
+        '<ul><li>foo</ul>{}<br><ul><li>bar</ul>',
+        '<ul><li>foo</ul><p>{}<br></p><ul><li>bar</ul>',
+        '<ol><li>foo[<li>bar]</ol><ol><li>baz</ol><ol><li>quz</ol>',
+        '<ol><li>foo</ol>{}<br><ul><li>bar</ul>',
+        '<ol><li>foo</ol><p>{}<br></p><ul><li>bar</ul>',
+        '<ul><li>foo</ul>{}<br><ol><li>bar</ol>',
+        '<ul><li>foo</ul><p>{}<br></p><ol><li>bar</ol>',
+
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=13831
+        '<p><b>[foo]</b>',
+        '<p><quasit>[foo]</quasit>',
+        '<p><b><i>[foo]</i></b>',
+        '<p><b>{foo}</b>',
+        '<p>{<b>foo</b>}',
+        '<p><b>[]f</b>',
+        '<b>[foo]</b>',
+        '<div><b>[foo]</b></div>',
+    ],
+    //@}
+    hilitecolor: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        '<p style="background-color: rgb(0, 255, 255)">foo[bar]baz</p>',
+        '<p style="background-color: #00ffff">foo[bar]baz</p>',
+        '<p style="background-color: aqua">foo[bar]baz</p>',
+        '{<p style="background-color: aqua">foo</p><p>bar</p>}',
+        '<span style="background-color: aqua">foo<span style="background-color: tan">[bar]</span>baz</span>',
+        '<span style="background-color: #00ffff">foo<span style="background-color: tan">[bar]</span>baz</span>',
+        '<span style="background-color: #0ff">foo<span style="background-color: tan">[bar]</span>baz</span>',
+        '<span style="background-color: rgb(0, 255, 255)">foo<span style="background-color: tan">[bar]</span>baz</span>',
+        '<span style="background-color: aqua">foo<span style="background-color: tan">b[ar]</span>baz</span>',
+        '<p style="background-color: aqua">foo<span style="background-color: tan">b[ar]</span>baz</p>',
+        '<div style="background-color: aqua"><p style="background-color: tan">b[ar]</p></div>',
+        '<span style="display: block; background-color: aqua"><span style="display: block; background-color: tan">b[ar]</span></span>',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<span style=background-color:tan>b]ar</span>baz',
+        'foo<span style=background-color:tan>ba[r</span>b]az',
+        'fo[o<span style=background-color:tan>bar</span>b]az',
+        'foo[<span style=background-color:tan>b]ar</span>baz',
+        'foo<span style=background-color:tan>ba[r</span>]baz',
+        'foo[<span style=background-color:tan>bar</span>]baz',
+        'foo<span style=background-color:tan>[bar]</span>baz',
+        'foo{<span style=background-color:tan>bar</span>}baz',
+        '<span style=background-color:tan>fo[o</span><span style=background-color:yellow>b]ar</span>',
+        '<span style=background-color:tan>fo[o</span><span style=background-color:tan>b]ar</span>',
+        '<span style=background-color:tan>fo[o<span style=background-color:transparent>b]ar</span></span>',
+
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=13829
+        '!<font size=6>[foo]</font>',
+        '!<span style=font-size:xx-large>[foo]</span>',
+        '!<font size=6>foo[bar]baz</font>',
+        '!<span style=font-size:xx-large>foo[bar]baz</span>',
+        '![foo<font size=6>bar</font>baz]',
+        '![foo<span style=font-size:xx-large>bar</span>baz]',
+    ],
+    //@}
+    indent: [
+    //@{
+        // All these have a trailing unselected paragraph, because otherwise
+        // Gecko is unhappy: it throws exceptions in non-CSS mode, and in CSS
+        // mode it adds the indentation invisibly to the wrapper div in many
+        // cases.
+        'foo[]bar<p>extra',
+        '<span>foo</span>{}<span>bar</span><p>extra',
+        '<span>foo[</span><span>]bar</span><p>extra',
+        'foo[bar]baz<p>extra',
+        '<p dir=rtl>פו[בר]בז<p dir=rtl>נוםף',
+        '<p dir=rtl>פו[ברבז<p>Foobar]baz<p>Extra',
+        '<p>Foo[barbaz<p dir=rtl>פובר]בז<p>Extra',
+        '<div><p>Foo[barbaz<p dir=rtl>פובר]בז</div><p>Extra',
+        'foo]bar[baz<p>extra',
+        '{<p><p> <p>foo</p>}<p>extra',
+        'foo[bar<i>baz]qoz</i>quz<p>extra',
+        '[]foo<p>extra',
+        'foo[]<p>extra',
+        '<p>[]foo<p>extra',
+        '<p>foo[]<p>extra',
+        '<p>{}<br>foo</p><p>extra',
+        '<p>foo<br>{}</p><p>extra',
+        '<span>{}<br>foo</span>bar<p>extra',
+        '<span>foo<br>{}</span>bar<p>extra',
+        '<p>foo</p>{}<p>bar</p>',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<p>foo[bar]</p><p>baz</p><p>extra',
+        '<p>[foobar</p><p>ba]z</p><p>extra',
+        'foo[bar]<br>baz<p>extra',
+        'foo[bar]<br><br><br><br>baz<p>extra',
+        'foobar<br>[ba]z<p>extra',
+        'foobar<br><br><br><br>[ba]z<p>extra',
+        'foo[bar<br>ba]z<p>extra',
+        '<div>foo<p>[bar]</p>baz</div><p>extra',
+
+        // These mimic existing indentation in various browsers, to see how
+        // they cope with indenting twice.  This is spec, Gecko non-CSS, and
+        // Opera:
+        '<blockquote><p>foo[bar]</p><p>baz</p></blockquote><p>extra',
+        '<blockquote><p>foo[bar</p><p>b]az</p></blockquote><p>extra',
+        '<blockquote><p>foo[bar]</p></blockquote><p>baz</p><p>extra',
+        '<blockquote><p>foo[bar</p></blockquote><p>b]az</p><p>extra',
+        '<p>[foo]<blockquote><p>bar</blockquote><p>extra',
+        '<p>[foo<blockquote><p>b]ar</blockquote><p>extra',
+        '<p>foo<blockquote><p>bar</blockquote><p>[baz]<p>extra',
+        '<p>foo<blockquote><p>[bar</blockquote><p>baz]<p>extra',
+        '<p>[foo<blockquote><p>bar</blockquote><p>baz]<p>extra',
+        '<blockquote><p>foo</blockquote><p>[bar]<blockquote><p>baz</blockquote><p>extra',
+
+        '<blockquote>foo[bar]<br>baz</blockquote><p>extra',
+        '<blockquote>foo[bar<br>b]az</blockquote><p>extra',
+        '<blockquote>foo[bar]</blockquote>baz<p>extra',
+        '<blockquote>foo[bar</blockquote>b]az<p>extra',
+        '[foo]<blockquote>bar</blockquote><p>extra',
+        '[foo<blockquote>b]ar</blockquote><p>extra',
+        'foo<blockquote>bar</blockquote>[baz]<p>extra',
+        '[foo<blockquote>bar</blockquote>baz]<p>extra',
+        '<blockquote>foo</blockquote>[bar]<blockquote>baz</blockquote><p>extra',
+
+        // IE:
+        '<blockquote style="margin-right: 0" dir="ltr"><p>foo[bar]</p><p>baz</p></blockquote><p>extra',
+        '<blockquote style="margin-right: 0" dir="ltr"><p>foo[bar</p><p>b]az</p></blockquote><p>extra',
+        '<blockquote style="margin-right: 0" dir="ltr"><p>foo[bar]</p></blockquote><p>baz</p><p>extra',
+        '<blockquote style="margin-right: 0" dir="ltr"><p>foo[bar</p></blockquote><p>b]az</p><p>extra',
+        '<p>[foo]<blockquote style="margin-right: 0" dir="ltr"><p>bar</blockquote><p>extra',
+        '<p>[foo<blockquote style="margin-right: 0" dir="ltr"><p>b]ar</blockquote><p>extra',
+        '<p>foo<blockquote style="margin-right: 0" dir="ltr"><p>bar</blockquote><p>[baz]<p>extra',
+        '<p>foo<blockquote style="margin-right: 0" dir="ltr"><p>[bar</blockquote><p>baz]<p>extra',
+        '<p>[foo<blockquote style="margin-right: 0" dir="ltr"><p>bar</blockquote><p>baz]<p>extra',
+        '<blockquote style="margin-right: 0" dir="ltr"><p>foo</blockquote><p>[bar]<blockquote style="margin-right: 0" dir="ltr"><p>baz</blockquote><p>extra',
+
+        // Firefox CSS mode:
+        '<p style="margin-left: 40px">foo[bar]</p><p style="margin-left: 40px">baz</p><p>extra',
+        '<p style="margin-left: 40px">foo[bar</p><p style="margin-left: 40px">b]az</p><p>extra',
+        '<p style="margin-left: 40px">foo[bar]</p><p>baz</p><p>extra',
+        '<p style="margin-left: 40px">foo[bar</p><p>b]az</p><p>extra',
+        '<p>[foo]<p style="margin-left: 40px">bar<p>extra',
+        '<p>[foo<p style="margin-left: 40px">b]ar<p>extra',
+        '<p>foo<p style="margin-left: 40px">bar<p>[baz]<p>extra',
+        '<p>foo<p style="margin-left: 40px">[bar<p>baz]<p>extra',
+        '<p>[foo<p style="margin-left: 40px">bar<p>baz]<p>extra',
+        '<p style="margin-left: 40px">foo<p>[bar]<p style="margin-left: 40px">baz<p>extra',
+
+        // WebKit:
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>foo[bar]</p><p>baz</p></blockquote><p>extra',
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>foo[bar</p><p>b]az</p></blockquote><p>extra',
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>foo[bar]</p></blockquote><p>baz</p><p>extra',
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>foo[bar</p></blockquote><p>b]az</p><p>extra',
+        '<p>[foo]<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>bar</blockquote><p>extra',
+        '<p>[foo<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>b]ar</blockquote><p>extra',
+        '<p>foo<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>bar</blockquote><p>[baz]<p>extra',
+        '<p>foo<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>[bar</blockquote><p>baz]<p>extra',
+        '<p>[foo<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>bar</blockquote><p>baz]<p>extra',
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>foo</blockquote><p>[bar]<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px"><p>baz</blockquote><p>extra',
+
+        // MDC says "In Firefox, if the selection spans multiple lines at
+        // different levels of indentation, only the least indented lines in
+        // the selection will be indented."  Let's test that.
+        '<blockquote>f[oo<blockquote>b]ar</blockquote></blockquote><p>extra',
+
+        // Lists!
+        '<ol><li>foo<li>[bar]<li>baz</ol>',
+        '<ol data-start=1 data-end=2><li>foo<li>bar<li>baz</ol>',
+        '<ol><li>foo</ol>[bar]',
+        '<ol><li>[foo]<br>bar<li>baz</ol>',
+        '<ol><li>foo<br>[bar]<li>baz</ol>',
+        '<ol><li><div>[foo]</div>bar<li>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol data-start=0 data-end=1><li>bar<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol data-start=1 data-end=2><li>bar<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>b[a]r</ol><li>baz</ol>',
+        '<ol><li>foo</li><ol><li>b[a]r</ol><li>baz</ol>',
+        '<ol><li>foo{<ol><li>bar</ol>}<li>baz</ol>',
+        '<ol><li>foo</li>{<ol><li>bar</ol>}<li>baz</ol>',
+        '<ol><li>[foo]<ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>[foo]</li><ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>foo<li>[bar]<ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<li>[bar]</li><ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>baz</ol><li>[quz]</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>baz</ol><li>[quz]</ol>',
+
+        // Lists with id's:
+        // http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2009-July/020721.html
+        '<ol><ol id=u1><li id=i1>foo</ol><li id=i2>[bar]</li><ol id=u3><li id=i3>baz</ol></ol>',
+        '<ol><ol><li id=i1>foo</ol><li id=i2>[bar]</li><ol id=u3><li id=i3>baz</ol></ol>',
+        '<ol><ol id=u1><li id=i1>foo</ol><li id=i2>[bar]</li><ol><li id=i3>baz</ol></ol>',
+        '<ol><li id=i2>[bar]</li><ol id=u3><li id=i3>baz</ol></ol>',
+        '<ol><ol id=u1><li id=i1>foo</ol><li id=i2>[bar]</ol>',
+
+        // Try indenting multiple items at once.
+        '<ol><li>foo<li>b[ar<li>baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol><li>baz</ol>',
+        '<ol><li>[foo</li><ol><li>bar]</ol><li>baz</ol>',
+        '<ol><li>foo<ol><li>b[ar</ol><li>b]az</ol>',
+        '<ol><li>foo</li><ol><li>b[ar</ol><li>b]az</ol>',
+        '<ol><li>[foo<ol><li>bar</ol><li>baz]</ol><p>extra',
+        '<ol><li>[foo</li><ol><li>bar</ol><li>baz]</ol><p>extra',
+
+        // We probably can't actually get this DOM . . .
+        '<ol><li>[foo]<ol><li>bar</ol>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]</ol>baz</ol>',
+        '<ol><li>foo<ol><li>bar</ol>[baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol>baz</ol>',
+
+        'foo<!--bar-->[baz]<p>extra',
+        '[foo]<!--bar-->baz<p>extra',
+        '<p>foo<!--bar-->{}<p>extra',
+        '<p>{}<!--foo-->bar<p>extra',
+
+        // Whitespace nodes
+        '<blockquote><p>foo</blockquote> <p>[bar]',
+        '<p>[foo]</p> <blockquote><p>bar</blockquote>',
+        '<blockquote><p>foo</blockquote> <p>[bar]</p> <blockquote><p>baz</blockquote>',
+        '<ol><li>foo</li><ol><li>bar</li> </ol><li>[baz]</ol>',
+        '<ol><li>foo</li><ol><li>bar</li></ol> <li>[baz]</ol>',
+        '<ol><li>foo</li><ol><li>bar</li> </ol> <li>[baz]</ol>',
+        '<ol><li>foo<ol><li>bar</li> </ol></li><li>[baz]</ol>',
+        '<ol><li>foo<ol><li>bar</li></ol></li> <li>[baz]</ol>',
+        '<ol><li>foo<ol><li>bar</li> </ol></li> <li>[baz]</ol>',
+        '<ol><li>foo<li>[bar]</li> <ol><li>baz</ol></ol>',
+        '<ol><li>foo<li>[bar]</li><ol> <li>baz</ol></ol>',
+        '<ol><li>foo<li>[bar]</li> <ol> <li>baz</ol></ol>',
+        '<ol><li>foo<li>[bar] <ol><li>baz</ol></ol>',
+        '<ol><li>foo<li>[bar]<ol> <li>baz</ol></ol>',
+        '<ol><li>foo<li>[bar] <ol> <li>baz</ol></ol>',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=32003
+        '<ul><li>a<br>{<br>}</li><li>b</li></ul>',
+    ],
+    //@}
+    inserthorizontalrule: [
+    //@{
+        'foo[]bar',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        '<p>foo[bar<p>baz]quz',
+        '<div><b>foo</b>{}<b>bar</b></div>',
+        '<div><b>foo[</b><b>]bar</b></div>',
+        '<div><b>foo</b>{<b>bar</b>}<b>baz</b></div>',
+        '<b>foo[]bar</b>',
+        '<b id=abc>foo[]bar</b>',
+        ["abc", 'foo[bar]baz'],
+        'foo[bar]baz',
+
+        'foo<b>[bar]</b>baz',
+        'foo<b>{bar}</b>baz',
+        'foo{<b>bar</b>}baz',
+        '<p>foo<p>[bar]<p>baz',
+        '<p>foo<p>{bar}<p>baz',
+        '<p>foo{<p>bar</p>}<p>baz',
+
+        '<p>foo[bar]baz</p>',
+        '<p id=abc>foo[bar]baz</p>',
+        '<h1>foo[bar]baz</h1>',
+        '<p>foo<b>b[a]r</b>baz</p>',
+
+        '<a>foo[bar]baz</a>',
+        '<a href=/>foo[bar]baz</a>',
+        '<abbr>foo[bar]baz</abbr>',
+        '<address>foo[bar]baz</address>',
+        '<article>foo[bar]baz</article>',
+        '<aside>foo[bar]baz</aside>',
+        '<b>foo[bar]baz</b>',
+        '<bdi>foo[bar]baz</bdi>',
+        '<bdo dir=rtl>foo[bar]baz</bdo>',
+        '<blockquote>foo[bar]baz</blockquote>',
+        '<table><caption>foo[bar]baz</caption><tr><td>quz</table>',
+        '<cite>foo[bar]baz</cite>',
+        '<code>foo[bar]baz</code>',
+        '<dl><dd>foo[bar]baz</dd></dl>',
+        '<del>foo[bar]baz</del>',
+        '<details>foo[bar]baz</details>',
+        '<dfn>foo[bar]baz</dfn>',
+        '<div>foo[bar]baz</div>',
+        '<dl><dt>foo[bar]baz</dt></dl>',
+        '<em>foo[bar]baz</em>',
+        '<figure><figcaption>foo[bar]baz</figcaption>quz</figure>',
+        '<figure>foo[bar]baz</figure>',
+        '<footer>foo[bar]baz</footer>',
+        '<h1>foo[bar]baz</h1>',
+        '<h2>foo[bar]baz</h2>',
+        '<h3>foo[bar]baz</h3>',
+        '<h4>foo[bar]baz</h4>',
+        '<h5>foo[bar]baz</h5>',
+        '<h6>foo[bar]baz</h6>',
+        '<header>foo[bar]baz</header>',
+        '<hgroup>foo[bar]baz</hgroup>',
+        '<hgroup><h1>foo[bar]baz</h1></hgroup>',
+        '<i>foo[bar]baz</i>',
+        '<ins>foo[bar]baz</ins>',
+        '<kbd>foo[bar]baz</kbd>',
+        '<mark>foo[bar]baz</mark>',
+        '<nav>foo[bar]baz</nav>',
+        '<ol><li>foo[bar]baz</li></ol>',
+        '<p>foo[bar]baz</p>',
+        '<pre>foo[bar]baz</pre>',
+        '<q>foo[bar]baz</q>',
+        '<ruby>foo[bar]baz<rt>quz</rt></ruby>',
+        '<ruby>foo<rt>bar[baz]quz</rt></ruby>',
+        '<ruby>foo<rp>bar[baz]quz</rp><rt>qoz</rt><rp>qiz</rp></ruby>',
+        '<s>foo[bar]baz</s>',
+        '<samp>foo[bar]baz</samp>',
+        '<section>foo[bar]baz</section>',
+        '<small>foo[bar]baz</small>',
+        '<span>foo[bar]baz</span>',
+        '<strong>foo[bar]baz</strong>',
+        '<sub>foo[bar]baz</sub>',
+        '<sup>foo[bar]baz</sup>',
+        '<table><tr><td>foo[bar]baz</td></table>',
+        '<table><tr><th>foo[bar]baz</th></table>',
+        '<u>foo[bar]baz</u>',
+        '<ul><li>foo[bar]baz</li></ul>',
+        '<var>foo[bar]baz</var>',
+
+        '<acronym>foo[bar]baz</acronym>',
+        '<big>foo[bar]baz</big>',
+        '<blink>foo[bar]baz</blink>',
+        '<center>foo[bar]baz</center>',
+        '<dir>foo[bar]baz</dir>',
+        '<dir><li>foo[bar]baz</li></dir>',
+        '<font>foo[bar]baz</font>',
+        '<listing>foo[bar]baz</listing>',
+        '<marquee>foo[bar]baz</marquee>',
+        '<nobr>foo[bar]baz</nobr>',
+        '<strike>foo[bar]baz</strike>',
+        '<tt>foo[bar]baz</tt>',
+        '<xmp>foo[bar]baz</xmp>',
+
+        '<quasit>foo[bar]baz</quasit>',
+
+        '<table><tr><td>fo[o<td>b]ar</table>',
+        'fo[o<span contenteditable=false>bar</span>b]az',
+    ],
+    //@}
+    inserthtml: [
+    //@{
+        'foo[]bar',
+        'foo[bar]baz',
+        'foo<span style=color:#aBcDeF>[bar]</span>baz',
+        'foo<span style=color:#aBcDeF>{bar}</span>baz',
+        'foo{<span style=color:#aBcDeF>bar</span>}baz',
+        '[foo<span style=color:#aBcDeF>bar]</span>baz',
+        '{foo<span style=color:#aBcDeF>bar}</span>baz',
+        'foo<span style=color:#aBcDeF>[bar</span>baz]',
+        'foo<span style=color:#aBcDeF>{bar</span>baz}',
+        'foo<span style=color:#aBcDeF>[bar</span><span style=color:#fEdCbA>baz]</span>quz',
+
+        ['', 'foo[bar]baz'],
+        ['\0', 'foo[bar]baz'],
+        ['\x07', 'foo[bar]baz'],
+        // The following line makes Firefox 7.0a2 go into an infinite loop on
+        // my machine.
+        //['\ud800', 'foo[bar]baz'],
+
+        ['<b>', 'foo[bar]baz'],
+        ['<b>abc', 'foo[bar]baz'],
+        ['<p>abc', '<p>foo[bar]baz'],
+        ['<li>abc', '<p>foo[bar]baz'],
+        ['<p>abc', '<ol>{<li>foo</li>}<li>bar</ol>'],
+        ['<p>abc', '<ol><li>foo</li>{<li>bar</li>}<li>baz</ol>'],
+        ['<p>abc', '<ol><li>[foo]</li><li>bar</ol>'],
+
+        ['abc', '<xmp>f[o]o</xmp>'],
+        ['<b>abc</b>', '<xmp>f[o]o</xmp>'],
+        ['abc', '<script>f[o]o</script>bar'],
+        ['<b>abc</b>', '<script>f[o]o</script>bar'],
+
+        ['<a>abc</a>', '<a>f[o]o</a>'],
+        ['<a href=/>abc</a>', '<a href=.>f[o]o</a>'],
+        ['<hr>', '<p>f[o]o'],
+        ['<hr>', '<b>f[o]o</b>'],
+        ['<h2>abc</h2>', '<h1>f[o]o</h1>'],
+        ['<td>abc</td>', '<table><tr><td>f[o]o</table>'],
+        ['<td>abc</td>', 'f[o]o'],
+
+        ['<dt>abc</dt>', '<dl><dt>f[o]o<dd>bar</dl>'],
+        ['<dt>abc</dt>', '<dl><dt>foo<dd>b[a]r</dl>'],
+        ['<dd>abc</dd>', '<dl><dt>f[o]o<dd>bar</dl>'],
+        ['<dd>abc</dd>', '<dl><dt>foo<dd>b[a]r</dl>'],
+        ['<dt>abc</dt>', 'f[o]o'],
+        ['<dt>abc</dt>', '<ol><li>f[o]o</ol>'],
+        ['<dd>abc</dd>', 'f[o]o'],
+        ['<dd>abc</dd>', '<ol><li>f[o]o</ol>'],
+
+        ['<li>abc</li>', '<dir><li>f[o]o</dir>'],
+        ['<li>abc</li>', '<ol><li>f[o]o</ol>'],
+        ['<li>abc</li>', '<ul><li>f[o]o</ul>'],
+        ['<dir><li>abc</dir>', '<dir><li>f[o]o</dir>'],
+        ['<dir><li>abc</dir>', '<ol><li>f[o]o</ol>'],
+        ['<dir><li>abc</dir>', '<ul><li>f[o]o</ul>'],
+        ['<ol><li>abc</ol>', '<dir><li>f[o]o</dir>'],
+        ['<ol><li>abc</ol>', '<ol><li>f[o]o</ol>'],
+        ['<ol><li>abc</ol>', '<ul><li>f[o]o</ul>'],
+        ['<ul><li>abc</ul>', '<dir><li>f[o]o</dir>'],
+        ['<ul><li>abc</ul>', '<ol><li>f[o]o</ol>'],
+        ['<ul><li>abc</ul>', '<ul><li>f[o]o</ul>'],
+        ['<li>abc</li>', 'f[o]o'],
+
+        ['<nobr>abc</nobr>', '<nobr>f[o]o</nobr>'],
+        ['<nobr>abc</nobr>', 'f[o]o'],
+
+        ['<p>abc', '<font color=blue>foo[]bar</font>'],
+        ['<p>abc', '<span style=color:blue>foo[]bar</span>'],
+        ['<p>abc', '<span style=font-variant:small-caps>foo[]bar</span>'],
+        [' ', '<p>[foo]</p>'],
+        ['<span style=display:none></span>', '<p>[foo]</p>'],
+        ['<!--abc-->', '<p>[foo]</p>'],
+
+        ['abc', '<p>{}<br></p>'],
+        ['<!--abc-->', '<p>{}<br></p>'],
+        ['abc', '<p><!--foo-->{}<span><br></span><!--bar--></p>'],
+        ['<!--abc-->', '<p><!--foo-->{}<span><br></span><!--bar--></p>'],
+        ['abc', '<p>{}<span><!--foo--><br><!--bar--></span></p>'],
+        ['<!--abc-->', '<p>{}<span><!--foo--><br><!--bar--></span></p>'],
+
+        ['abc', '<p><br>{}</p>'],
+        ['<!--abc-->', '<p><br>{}</p>'],
+        ['abc', '<p><!--foo--><span><br></span>{}<!--bar--></p>'],
+        ['<!--abc-->', '<p><!--foo--><span><br></span>{}<!--bar--></p>'],
+        ['abc', '<p><span><!--foo--><br><!--bar--></span>{}</p>'],
+        ['<!--abc-->', '<p><span><!--foo--><br><!--bar--></span>{}</p>'],
+    ],
+    //@}
+    insertimage: [
+    //@{
+        'foo[]bar',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        ["", 'foo[bar]baz'],
+        'foo[bar]baz',
+        'foo<span style=color:#aBcDeF>[bar]</span>baz',
+        'foo<span style=color:#aBcDeF>{bar}</span>baz',
+        'foo{<span style=color:#aBcDeF>bar</span>}baz',
+        '[foo<span style=color:#aBcDeF>bar]</span>baz',
+        '{foo<span style=color:#aBcDeF>bar}</span>baz',
+        'foo<span style=color:#aBcDeF>[bar</span>baz]',
+        'foo<span style=color:#aBcDeF>{bar</span>baz}',
+        'foo<span style=color:#aBcDeF>[bar</span><span style=color:#fEdCbA>baz]</span>quz',
+
+        'foo<b>[bar]</b>baz',
+        'foo<b>{bar}</b>baz',
+        'foo{<b>bar</b>}baz',
+        'foo<span>[bar]</span>baz',
+        'foo<span>{bar}</span>baz',
+        'foo{<span>bar</span>}baz',
+        '<b>foo[bar</b><i>baz]quz</i>',
+        '<p>foo</p><p>[bar]</p><p>baz</p>',
+        '<p>foo</p><p>{bar}</p><p>baz</p>',
+        '<p>foo</p>{<p>bar</p>}<p>baz</p>',
+
+        '<p>foo[bar<p>baz]quz',
+        '<p>foo[bar<div>baz]quz</div>',
+        '<p>foo[bar<h1>baz]quz</h1>',
+        '<div>foo[bar</div><p>baz]quz',
+        '<blockquote>foo[bar</blockquote><pre>baz]quz</pre>',
+
+        '<p><b>foo[bar</b><p>baz]quz',
+        '<div><p>foo[bar</div><p>baz]quz',
+        '<p>foo[bar<blockquote><p>baz]quz<p>qoz</blockquote',
+        '<p>foo[bar<p style=color:blue>baz]quz',
+        '<p>foo[bar<p><b>baz]quz</b>',
+
+        '<div><p>foo<p>[bar<p>baz]</div>',
+
+        'foo[<br>]bar',
+        '<p>foo[</p><p>]bar</p>',
+        '<p>foo[</p><p>]bar<br>baz</p>',
+        'foo[<p>]bar</p>',
+        'foo[<p>]bar<br>baz</p>',
+        'foo[<p>]bar</p>baz',
+        '<p>foo[</p>]bar',
+        '<p>foo[</p>]bar<br>baz',
+        '<p>foo[</p>]bar<p>baz</p>',
+        'foo[<div><p>]bar</div>',
+        '<div><p>foo[</p></div>]bar',
+        'foo[<div><p>]bar</p>baz</div>',
+        'foo[<div>]bar<p>baz</p></div>',
+        '<div><p>foo</p>bar[</div>]baz',
+        '<div>foo<p>bar[</p></div>]baz',
+    ],
+    //@}
+    insertlinebreak: [
+    //@{ Same as insertparagraph (set below)
+    ],
+    //@}
+    insertorderedlist: [
+    //@{
+        'foo[]bar',
+        'foo[bar]baz',
+        'foo<br>[bar]',
+        'f[oo<br>b]ar<br>baz',
+        '<p>[foo]<br>bar</p>',
+        '[foo<ol><li>bar]</ol>baz',
+        'foo<ol><li>[bar</ol>baz]',
+        '[foo<ul><li>bar]</ul>baz',
+        'foo<ul><li>[bar</ul>baz]',
+        'foo<ul><li>[bar</ul><ol><li>baz]</ol>quz',
+        'foo<ol><li>[bar</ol><ul><li>baz]</ul>quz',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr><td>fo[o<td>b]ar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        '<p>foo<p>[bar]<p>baz',
+        '<p>foo<blockquote>[bar]</blockquote><p>baz',
+        '<dl><dt>foo<dd>[bar]<dt>baz<dd>quz</dl>',
+        '<dl><dt>foo<dd>bar<dt>[baz]<dd>quz</dl>',
+
+        '<p>[foo<p>bar]<p>baz',
+        '<p>[foo<blockquote>bar]</blockquote><p>baz',
+        '<dl><dt>[foo<dd>bar]<dt>baz<dd>quz</dl>',
+        '<dl><dt>foo<dd>[bar<dt>baz]<dd>quz</dl>',
+
+        '<p>[foo<blockquote><p>bar]<p>baz</blockquote>',
+
+
+        // Various <ol> stuff
+        '<ol><li>foo<li>[bar]<li>baz</ol>',
+        '<ol><li>foo</ol>[bar]',
+        '[foo]<ol><li>bar</ol>',
+        '<ol><li>foo</ol>[bar]<ol><li>baz</ol>',
+        '<ol><ol><li>[foo]</ol></ol>',
+        '<ol><li>[foo]<br>bar<li>baz</ol>',
+        '<ol><li>foo<br>[bar]<li>baz</ol>',
+        '<ol><li><div>[foo]</div>bar<li>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>[foo]<ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>[foo]</li><ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>foo<li>[bar]<ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<li>[bar]</li><ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>baz</ol><li>[quz]</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>baz</ol><li>[quz]</ol>',
+
+        // Multiple items at once.
+        '<ol><li>foo<li>[bar<li>baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol><li>baz</ol>',
+        '<ol><li>foo<ol><li>b[ar</ol><li>b]az</ol>',
+        '<ol><li>[foo<ol><li>bar</ol><li>baz]</ol><p>extra',
+
+        // We probably can't actually get this DOM . . .
+        '<ol><li>[foo]<ol><li>bar</ol>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]</ol>baz</ol>',
+        '<ol><li>foo<ol><li>bar</ol>[baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol>baz</ol>',
+
+
+        // Same stuff but with <ul>
+        '<ul><li>foo<li>[bar]<li>baz</ul>',
+        '<ul><li>foo</ul>[bar]',
+        '[foo]<ul><li>bar</ul>',
+        '<ul><li>foo</ul>[bar]<ul><li>baz</ul>',
+        '<ul><ul><li>[foo]</ul></ul>',
+        '<ul><li>[foo]<br>bar<li>baz</ul>',
+        '<ul><li>foo<br>[bar]<li>baz</ul>',
+        '<ul><li><div>[foo]</div>bar<li>baz</ul>',
+        '<ul><li>foo<ul><li>[bar]<li>baz</ul><li>quz</ul>',
+        '<ul><li>foo<ul><li>bar<li>[baz]</ul><li>quz</ul>',
+        '<ul><li>foo</li><ul><li>[bar]<li>baz</ul><li>quz</ul>',
+        '<ul><li>foo</li><ul><li>bar<li>[baz]</ul><li>quz</ul>',
+        '<ul><li>[foo]<ul><li>bar</ul><li>baz</ul>',
+        '<ul><li>[foo]</li><ul><li>bar</ul><li>baz</ul>',
+        '<ul><li>foo<li>[bar]<ul><li>baz</ul><li>quz</ul>',
+        '<ul><li>foo<li>[bar]</li><ul><li>baz</ul><li>quz</ul>',
+        '<ul><li>foo<ul><li>bar<li>baz</ul><li>[quz]</ul>',
+        '<ul><li>foo</li><ul><li>bar<li>baz</ul><li>[quz]</ul>',
+
+        // Multiple items at once.
+        '<ul><li>foo<li>[bar<li>baz]</ul>',
+        '<ul><li>[foo<ul><li>bar]</ul><li>baz</ul>',
+        '<ul><li>foo<ul><li>b[ar</ul><li>b]az</ul>',
+        '<ul><li>[foo<ul><li>bar</ul><li>baz]</ul><p>extra',
+
+        // We probably can't actually get this DOM . . .
+        '<ul><li>[foo]<ul><li>bar</ul>baz</ul>',
+        '<ul><li>foo<ul><li>[bar]</ul>baz</ul>',
+        '<ul><li>foo<ul><li>bar</ul>[baz]</ul>',
+        '<ul><li>[foo<ul><li>bar]</ul>baz</ul>',
+
+
+        // Mix of <ol> and <ul>
+        'foo<ol><li>bar</ol><ul><li>[baz]</ul>quz',
+        'foo<ol><li>bar</ol><ul><li>[baz</ul>quz]',
+        'foo<ul><li>[bar]</ul><ol><li>baz</ol>quz',
+        '[foo<ul><li>bar]</ul><ol><li>baz</ol>quz',
+
+        // Interaction with indentation
+        '[foo]<blockquote>bar</blockquote>baz',
+        'foo<blockquote>[bar]</blockquote>baz',
+        '[foo<blockquote>bar]</blockquote>baz',
+        '<ol><li>foo</ol><blockquote>[bar]</blockquote>baz',
+        '[foo]<blockquote><ol><li>bar</ol></blockquote>baz',
+        'foo<blockquote>[bar]<br>baz</blockquote>',
+        '[foo<blockquote>bar]<br>baz</blockquote>',
+        '<ol><li>foo</ol><blockquote>[bar]<br>baz</blockquote>',
+
+        '<p>[foo]<blockquote><p>bar</blockquote><p>baz',
+        '<p>foo<blockquote><p>[bar]</blockquote><p>baz',
+        '<p>[foo<blockquote><p>bar]</blockquote><p>baz',
+        '<ol><li>foo</ol><blockquote><p>[bar]</blockquote><p>baz',
+
+        // Attributes
+        '<ul id=abc><li>foo<li>[bar]<li>baz</ul>',
+        '<ul style=color:blue><li>foo<li>[bar]<li>baz</ul>',
+        '<ul style=text-indent:1em><li>foo<li>[bar]<li>baz</ul>',
+        '<ul id=abc><li>[foo]<li>bar<li>baz</ul>',
+        '<ul style=color:blue><li>[foo]<li>bar<li>baz</ul>',
+        '<ul style=text-indent:1em><li>[foo]<li>bar<li>baz</ul>',
+        '<ul id=abc><li>foo<li>bar<li>[baz]</ul>',
+        '<ul style=color:blue><li>foo<li>bar<li>[baz]</ul>',
+        '<ul style=text-indent:1em><li>foo<li>bar<li>[baz]</ul>',
+
+        // Whitespace nodes
+        '<ol><li>foo</ol> <p>[bar]',
+        '<p>[foo]</p> <ol><li>bar</ol>',
+        '<ol><li>foo</ol> <p>[bar]</p> <ol><li>baz</ol>',
+
+        // This caused an infinite loop at one point due to a bug in "fix
+        // disallowed ancestors".  Disabled because I'm not sure how we want it
+        // to behave:
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14578
+        '!<span contenteditable=true>foo[]</span>',
+    ],
+    //@}
+    insertparagraph: [
+    //@{
+        'foo[bar]baz',
+        'fo[o<table><tr><td>b]ar</table>',
+        '<table><tr><td>[foo<td>bar]<tr><td>baz<td>quz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<tr><td>baz<td>quz</table>',
+        '<table><tr><td>fo[o</table>b]ar',
+        '<table><tr><td>fo[o<td>b]ar<td>baz</table>',
+        '{<table><tr><td>foo</table>}',
+        '<table><tr><td>[foo]</table>',
+        '<ol><li>[foo]<li>bar</ol>',
+        '<ol><li>f[o]o<li>bar</ol>',
+
+        '[]foo',
+        'foo[]',
+        '<span>foo[]</span>',
+        'foo[]<br>',
+        'foo[]bar',
+        '<address>[]foo</address>',
+        '<address>foo[]</address>',
+        '<address>foo[]<br></address>',
+        '<address>foo[]bar</address>',
+        '<div>[]foo</div>',
+        '<div>foo[]</div>',
+        '<div>foo[]<br></div>',
+        '<div>foo[]bar</div>',
+        '<dl><dt>[]foo<dd>bar</dl>',
+        '<dl><dt>foo[]<dd>bar</dl>',
+        '<dl><dt>foo[]<br><dd>bar</dl>',
+        '<dl><dt>foo[]bar<dd>baz</dl>',
+        '<dl><dt>foo<dd>[]bar</dl>',
+        '<dl><dt>foo<dd>bar[]</dl>',
+        '<dl><dt>foo<dd>bar[]<br></dl>',
+        '<dl><dt>foo<dd>bar[]baz</dl>',
+        '<h1>[]foo</h1>',
+        '<h1>foo[]</h1>',
+        '<h1>foo[]<br></h1>',
+        '<h1>foo[]bar</h1>',
+        '<ol><li>[]foo</ol>',
+        '<ol><li>foo[]</ol>',
+        '<ol><li>foo[]<br></ol>',
+        '<ol><li>foo[]bar</ol>',
+        '<p>[]foo</p>',
+        '<p>foo[]</p>',
+        '<p>foo[]<br></p>',
+        '<p>foo[]bar</p>',
+        '<pre>[]foo</pre>',
+        '<pre>foo[]</pre>',
+        '<pre>foo[]<br></pre>',
+        '<pre>foo[]bar</pre>',
+
+        '<pre>foo[]<br><br></pre>',
+        '<pre>foo<br>{}<br></pre>',
+        '<pre>foo&#10;[]</pre>',
+        '<pre>foo[]&#10;</pre>',
+        '<pre>foo&#10;[]&#10;</pre>',
+
+        '<xmp>foo[]bar</xmp>',
+        '<script>foo[]bar</script>baz',
+        '<div style=display:none>foo[]bar</div>baz',
+        '<listing>foo[]bar</listing>',
+
+        '<ol><li>{}<br></li></ol>',
+        'foo<ol><li>{}<br></li></ol>',
+        '<ol><li>{}<br></li></ol>foo',
+        '<ol><li>foo<li>{}<br></ol>',
+        '<ol><li>{}<br><li>bar</ol>',
+        '<ol><li>foo</li><ul><li>{}<br></ul></ol>',
+
+        '<dl><dt>{}<br></dt></dl>',
+        '<dl><dt>foo<dd>{}<br></dl>',
+        '<dl><dt>{}<br><dd>bar</dl>',
+        '<dl><dt>foo<dd>bar<dl><dt>{}<br><dd>baz</dl></dl>',
+        '<dl><dt>foo<dd>bar<dl><dt>baz<dd>{}<br></dl></dl>',
+
+        '<h1>foo[bar</h1><p>baz]quz</p>',
+        '<p>foo[bar</p><h1>baz]quz</h1>',
+        '<p>foo</p>{}<br>',
+        '{}<br><p>foo</p>',
+        '<p>foo</p>{}<br><h1>bar</h1>',
+        '<h1>foo</h1>{}<br><p>bar</p>',
+        '<h1>foo</h1>{}<br><h2>bar</h2>',
+        '<p>foo</p><h1>[bar]</h1><p>baz</p>',
+        '<p>foo</p>{<h1>bar</h1>}<p>baz</p>',
+
+        '<table><tr><td>foo[]bar</table>',
+        '<table><tr><td><p>foo[]bar</table>',
+
+        '<blockquote>[]foo</blockquote>',
+        '<blockquote>foo[]</blockquote>',
+        '<blockquote>foo[]<br></blockquote>',
+        '<blockquote>foo[]bar</blockquote>',
+        '<blockquote><p>[]foo</blockquote>',
+        '<blockquote><p>foo[]</blockquote>',
+        '<blockquote><p>foo[]bar</blockquote>',
+        '<blockquote><p>foo[]<p>bar</blockquote>',
+        '<blockquote><p>foo[]bar<p>baz</blockquote>',
+
+        '<span>foo[]bar</span>',
+        '<span>foo[]bar</span>baz',
+        '<b>foo[]bar</b>',
+        '<b>foo[]bar</b>baz',
+        '<b>foo[]</b>bar',
+        'foo<b>[]bar</b>',
+        '<b>foo[]</b><i>bar</i>',
+        '<b id=x class=y>foo[]bar</b>',
+        '<i><b>foo[]bar</b>baz</i>',
+
+        '<p><b>foo[]bar</b></p>',
+        '<p><b>[]foo</b></p>',
+        '<p><b id=x class=y>foo[]bar</b></p>',
+        '<div><b>foo[]bar</b></div>',
+
+        '<a href=foo>foo[]bar</a>',
+        '<a href=foo>foo[]bar</a>baz',
+        '<a href=foo>foo[]</a>bar',
+        'foo<a href=foo>[]bar</a>',
+
+        '<p>foo[]<!--bar-->',
+        '<p><!--foo-->[]bar',
+
+        '<p>foo<span style=color:#aBcDeF>[bar]</span>baz',
+        '<p>foo<span style=color:#aBcDeF>{bar}</span>baz',
+        '<p>foo{<span style=color:#aBcDeF>bar</span>}baz',
+        '<p>[foo<span style=color:#aBcDeF>bar]</span>baz',
+        '<p>{foo<span style=color:#aBcDeF>bar}</span>baz',
+        '<p>foo<span style=color:#aBcDeF>[bar</span>baz]',
+        '<p>foo<span style=color:#aBcDeF>{bar</span>baz}',
+        '<p>foo<span style=color:#aBcDeF>[bar</span><span style=color:#fEdCbA>baz]</span>quz',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=5036
+        '<ul contenteditable><li>{}<br></ul>',
+        '<ul contenteditable><li>foo[]</ul>',
+        '<div contenteditable=false><ul contenteditable><li>{}<br></ul></div>',
+        '<div contenteditable=false><ul contenteditable><li>foo[]</ul></div>',
+
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=13841
+        // https://bugs.webkit.org/show_bug.cgi?id=23507
+        '<address><p>foo[]</address>',
+        '<dl><dt><p>foo[]</dl>',
+        '<dl><dd><p>foo[]</dl>',
+        '<ol><li><p>foo[]</ol>',
+        '<ul><li><p>foo[]</ul>',
+        '<address><div>foo[]</address>',
+        '<dl><dt><div>foo[]</dl>',
+        '<dl><dd><div>foo[]</dl>',
+        '<ol><li><div>foo[]</ol>',
+        '<ul><li><div>foo[]</ul>',
+        '<div><p>foo[]</div>',
+        '<div><div>foo[]</div>',
+
+        '<address><p>[]foo</address>',
+        '<dl><dt><p>[]foo</dl>',
+        '<dl><dd><p>[]foo</dl>',
+        '<ol><li><p>[]foo</ol>',
+        '<ul><li><p>[]foo</ul>',
+        '<address><div>[]foo</address>',
+        '<dl><dt><div>[]foo</dl>',
+        '<dl><dd><div>[]foo</dl>',
+        '<ol><li><div>[]foo</ol>',
+        '<ul><li><div>[]foo</ul>',
+        '<div><p>[]foo</div>',
+        '<div><div>[]foo</div>',
+
+        '<address><p>foo[]bar</address>',
+        '<dl><dt><p>foo[]bar</dl>',
+        '<dl><dd><p>foo[]bar</dl>',
+        '<ol><li><p>foo[]bar</ol>',
+        '<ul><li><p>foo[]bar</ul>',
+        '<address><div>foo[]bar</address>',
+        '<dl><dt><div>foo[]bar</dl>',
+        '<dl><dd><div>foo[]bar</dl>',
+        '<ol><li><div>foo[]bar</ol>',
+        '<ul><li><div>foo[]bar</ul>',
+        '<div><p>foo[]bar</div>',
+        '<div><div>foo[]bar</div>',
+
+        '<ol><li class=a id=x><p class=b id=y>foo[]</ol>',
+        '<div class=a id=x><div class=b id=y>foo[]</div></div>',
+        '<div class=a id=x><p class=b id=y>foo[]</div>',
+        '<ol><li class=a id=x><p class=b id=y>[]foo</ol>',
+        '<div class=a id=x><div class=b id=y>[]foo</div></div>',
+        '<div class=a id=x><p class=b id=y>[]foo</div>',
+        '<ol><li class=a id=x><p class=b id=y>foo[]bar</ol>',
+        '<div class=a id=x><div class=b id=y>foo[]bar</div></div>',
+        '<div class=a id=x><p class=b id=y>foo[]bar</div>',
+    ],
+    //@}
+    inserttext: [
+    //@{
+        'foo[bar]baz',
+        ['', 'foo[bar]baz'],
+
+        ['\t', 'foo[]bar'],
+        ['&', 'foo[]bar'],
+        ['\n', 'foo[]bar'],
+        ['abc\ndef', 'foo[]bar'],
+        ['\x07', 'foo[]bar'],
+
+        ['<b>hi</b>', 'foo[]bar'],
+        ['<', 'foo[]bar'],
+        ['&amp;', 'foo[]bar'],
+
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14254
+        ['!\r', 'foo[]bar'],
+        ['!\r\n', 'foo[]bar'],
+        ['!\0', 'foo[]bar'],
+        ['!\ud800', 'foo[]bar'],
+
+        // Whitespace tests!  The following two bugs are relevant to some of
+        // these:
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14119
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=681626
+        [' ', 'foo[]bar'],
+        [' ', 'foo []bar'],
+        [' ', 'foo[] bar'],
+        [' ', 'foo &nbsp;[]bar'],
+        [' ', 'foo []&nbsp;bar'],
+        [' ', 'foo[] &nbsp;bar'],
+        [' ', 'foo&nbsp; []bar'],
+        [' ', 'foo&nbsp;[] bar'],
+        [' ', 'foo[]&nbsp; bar'],
+        [' ', 'foo&nbsp;&nbsp;[]bar'],
+        [' ', 'foo&nbsp;[]&nbsp;bar'],
+        [' ', 'foo[]&nbsp;&nbsp;bar'],
+        [' ', 'foo []&nbsp;        bar'],
+        [' ', 'foo  []bar'],
+        [' ', 'foo []&nbsp;&nbsp; &nbsp; bar'],
+
+        [' ', '[]foo'],
+        [' ', '{}foo'],
+        [' ', 'foo[]'],
+        [' ', 'foo{}'],
+        [' ', 'foo&nbsp;[]'],
+        [' ', 'foo&nbsp;{}'],
+        [' ', 'foo&nbsp;&nbsp;[]'],
+        [' ', 'foo&nbsp;&nbsp;{}'],
+        [' ', '<b>foo[]</b>bar'],
+        [' ', 'foo[]<b>bar</b>'],
+
+        [' ', 'foo[] '],
+        [' ', ' foo   []   '],
+        [' ', 'foo[]<span> </span>'],
+        [' ', 'foo[]<span> </span> '],
+        [' ', ' []foo'],
+        [' ', '   []   foo '],
+        [' ', '<span> </span>[]foo'],
+        [' ', ' <span> </span>[]foo'],
+
+        [' ', '{}<br>'],
+        [' ', '<p>{}<br>'],
+
+        [' ', '<p>foo[]<p>bar'],
+        [' ', '<p>foo&nbsp;[]<p>bar'],
+        [' ', '<p>foo[]<p>&nbsp;bar'],
+
+        // Some of the same tests as above, repeated with various values of
+        // white-space.
+        [' ', '<pre>foo[]bar</pre>'],
+        [' ', '<pre>foo []bar</pre>'],
+        [' ', '<pre>foo[] bar</pre>'],
+        [' ', '<pre>foo &nbsp;[]bar</pre>'],
+        [' ', '<pre>[]foo</pre>'],
+        [' ', '<pre>foo[]</pre>'],
+        [' ', '<pre>foo&nbsp;[]</pre>'],
+        [' ', '<pre> foo   []   </pre>'],
+
+        [' ', '<div style=white-space:pre>foo[]bar</div>'],
+        [' ', '<div style=white-space:pre>foo []bar</div>'],
+        [' ', '<div style=white-space:pre>foo[] bar</div>'],
+        [' ', '<div style=white-space:pre>foo &nbsp;[]bar</div>'],
+        [' ', '<div style=white-space:pre>[]foo</div>'],
+        [' ', '<div style=white-space:pre>foo[]</div>'],
+        [' ', '<div style=white-space:pre>foo&nbsp;[]</div>'],
+        [' ', '<div style=white-space:pre> foo   []   </div>'],
+
+        [' ', '<div style=white-space:pre-wrap>foo[]bar</div>'],
+        [' ', '<div style=white-space:pre-wrap>foo []bar</div>'],
+        [' ', '<div style=white-space:pre-wrap>foo[] bar</div>'],
+        [' ', '<div style=white-space:pre-wrap>foo &nbsp;[]bar</div>'],
+        [' ', '<div style=white-space:pre-wrap>[]foo</div>'],
+        [' ', '<div style=white-space:pre-wrap>foo[]</div>'],
+        [' ', '<div style=white-space:pre-wrap>foo&nbsp;[]</div>'],
+        [' ', '<div style=white-space:pre-wrap> foo   []   </div>'],
+
+        [' ', '<div style=white-space:pre-line>foo[]bar</div>'],
+        [' ', '<div style=white-space:pre-line>foo []bar</div>'],
+        [' ', '<div style=white-space:pre-line>foo[] bar</div>'],
+        [' ', '<div style=white-space:pre-line>foo &nbsp;[]bar</div>'],
+        [' ', '<div style=white-space:pre-line>[]foo</div>'],
+        [' ', '<div style=white-space:pre-line>foo[]</div>'],
+        [' ', '<div style=white-space:pre-line>foo&nbsp;[]</div>'],
+        [' ', '<div style=white-space:pre-line> foo   []   </div>'],
+
+        [' ', '<div style=white-space:nowrap>foo[]bar</div>'],
+        [' ', '<div style=white-space:nowrap>foo []bar</div>'],
+        [' ', '<div style=white-space:nowrap>foo[] bar</div>'],
+        [' ', '<div style=white-space:nowrap>foo &nbsp;[]bar</div>'],
+        [' ', '<div style=white-space:nowrap>[]foo</div>'],
+        [' ', '<div style=white-space:nowrap>foo[]</div>'],
+        [' ', '<div style=white-space:nowrap>foo&nbsp;[]</div>'],
+        [' ', '<div style=white-space:nowrap> foo   []   </div>'],
+
+        // End whitespace tests
+
+        // Autolinking tests
+        [' ', 'http://a[]'],
+        [' ', 'ftp://a[]'],
+        [' ', 'quasit://a[]'],
+        [' ', '.x-++-.://a[]'],
+        [' ', '(http://a)[]'],
+        [' ', '&lt;http://a>[]'],
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14744
+        ['! ', '&#x5b;http://a&#x5d;[]'],
+        ['! ', '&#x7b;http://a&#x7d;[]'],
+        [' ', 'http://a![]'],
+        [' ', '!"#$%&amp;\'()*+,-./:;&lt;=>?\^_`|~http://a!"#$%&amp;\'()*+,-./:;&lt;=>?\^_`|~[]'],
+        [' ', 'http://a!"\'(),-.:;&lt;>`[]'],
+        [' ', 'http://a#$%&amp;*+/=?\^_|~[]'],
+        [' ', 'mailto:a[]'],
+        [' ', 'a@b[]'],
+        [' ', 'a@[]'],
+        [' ', '@b[]'],
+        [' ', '#@x[]'],
+        [' ', 'a@.[]'],
+        [' ', '!"#$%&amp;\'()*+,-./:;&lt;=>?\^_`|~a@b!"#$%&amp;\'()*+,-./:;&lt;=>?\^_`|~[]'],
+        [' ', '<b>a@b</b>{}'],
+        [' ', '<b>a</b><i>@</i><u>b</u>{}'],
+        [' ', 'a@b<b>[]c</b>'],
+        [' ', '<p>a@b</p><p>[]c</p>'],
+        ['a', 'http://a[]'],
+        ['\t', 'http://a[]'],
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14254
+        ['!\r', 'http://a[]'],
+        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14745
+        ['!\n', 'http://a[]'],
+        ['\f', 'http://a[]'],
+        ['\u00A0', 'http://a[]'],
+
+        ['   ', 'foo[]'],
+
+        'foo[]bar',
+        'foo&nbsp;[]',
+        'foo\xa0[]',
+        '<p>foo[]',
+        '<p>foo</p>{}',
+        '<p>[]foo',
+        '<p>{}foo',
+        '{}<p>foo',
+        '<p>foo</p>{}<p>bar</p>',
+        '<b>foo[]</b>bar',
+        '<b>foo</b>[]bar',
+        'foo<b>{}</b>bar',
+        '<a>foo[]</a>bar',
+        '<a>foo</a>[]bar',
+        '<a href=/>foo[]</a>bar',
+        '<a href=/>foo</a>[]bar',
+        '<p>fo[o<p>b]ar',
+        '<p>fo[o<p>bar<p>b]az',
+        '{}<br>',
+        '<p>{}<br>',
+        '<p><span>{}<br></span>',
+        '<p>foo<span style=color:#aBcDeF>[bar]</span>baz',
+        '<p>foo<span style=color:#aBcDeF>{bar}</span>baz',
+        '<p>foo{<span style=color:#aBcDeF>bar</span>}baz',
+        '<p>[foo<span style=color:#aBcDeF>bar]</span>baz',
+        '<p>{foo<span style=color:#aBcDeF>bar}</span>baz',
+        '<p>foo<span style=color:#aBcDeF>[bar</span>baz]',
+        '<p>foo<span style=color:#aBcDeF>{bar</span>baz}',
+        '<p>foo<span style=color:#aBcDeF>[bar</span><span style=color:#fEdCbA>baz]</span>quz',
+
+
+        // These are like the corresponding tests in the multitest section, but
+        // because the selection isn't collapsed, we don't need to do
+        // multitests to set overrides.
+        'foo<b>[bar]</b>baz',
+        'foo<i>[bar]</i>baz',
+        'foo<s>[bar]</s>baz',
+        'foo<sub>[bar]</sub>baz',
+        'foo<sup>[bar]</sup>baz',
+        'foo<u>[bar]</u>baz',
+        'foo<a href=http://www.google.com>[bar]</a>baz',
+        'foo<font face=sans-serif>[bar]</font>baz',
+        'foo<font size=4>[bar]</font>baz',
+        'foo<font color=#0000FF>[bar]</font>baz',
+        'foo<span style=background-color:#00FFFF>[bar]</span>baz',
+        'foo<a href=http://www.google.com><font color=blue>[bar]</font></a>baz',
+        'foo<font color=blue><a href=http://www.google.com>[bar]</a></font>baz',
+        'foo<a href=http://www.google.com><font color=brown>[bar]</font></a>baz',
+        'foo<font color=brown><a href=http://www.google.com>[bar]</a></font>baz',
+        'foo<a href=http://www.google.com><font color=black>[bar]</font></a>baz',
+        'foo<a href=http://www.google.com><u>[bar]</u></a>baz',
+        'foo<u><a href=http://www.google.com>[bar]</a></u>baz',
+        'foo<sub><font size=2>[bar]</font></sub>baz',
+        'foo<font size=2><sub>[bar]</sub></font>baz',
+        'foo<sub><font size=3>[bar]</font></sub>baz',
+        'foo<font size=3><sub>[bar]</sub></font>baz',
+
+        // Now repeat but with different selections.
+        '[foo<b>bar]</b>baz',
+        '[foo<i>bar]</i>baz',
+        '[foo<s>bar]</s>baz',
+        '[foo<sub>bar]</sub>baz',
+        '[foo<sup>bar]</sup>baz',
+        '[foo<u>bar]</u>baz',
+        '[foo<a href=http://www.google.com>bar]</a>baz',
+        '[foo<font face=sans-serif>bar]</font>baz',
+        '[foo<font size=4>bar]</font>baz',
+        '[foo<font color=#0000FF>bar]</font>baz',
+        '[foo<span style=background-color:#00FFFF>bar]</span>baz',
+        '[foo<a href=http://www.google.com><font color=blue>bar]</font></a>baz',
+        '[foo<font color=blue><a href=http://www.google.com>bar]</a></font>baz',
+        '[foo<a href=http://www.google.com><font color=brown>bar]</font></a>baz',
+        '[foo<font color=brown><a href=http://www.google.com>bar]</a></font>baz',
+        '[foo<a href=http://www.google.com><font color=black>bar]</font></a>baz',
+        '[foo<a href=http://www.google.com><u>bar]</u></a>baz',
+        '[foo<u><a href=http://www.google.com>bar]</a></u>baz',
+        '[foo<sub><font size=2>bar]</font></sub>baz',
+        '[foo<font size=2><sub>bar]</sub></font>baz',
+        '[foo<sub><font size=3>bar]</font></sub>baz',
+        '[foo<font size=3><sub>bar]</sub></font>baz',
+
+        'foo<b>[bar</b>baz]',
+        'foo<i>[bar</i>baz]',
+        'foo<s>[bar</s>baz]',
+        'foo<sub>[bar</sub>baz]',
+        'foo<sup>[bar</sup>baz]',
+        'foo<u>[bar</u>baz]',
+        'foo<a href=http://www.google.com>[bar</a>baz]',
+        'foo<font face=sans-serif>[bar</font>baz]',
+        'foo<font size=4>[bar</font>baz]',
+        'foo<font color=#0000FF>[bar</font>baz]',
+        'foo<span style=background-color:#00FFFF>[bar</span>baz]',
+        'foo<a href=http://www.google.com><font color=blue>[bar</font></a>baz]',
+        'foo<font color=blue><a href=http://www.google.com>[bar</a></font>baz]',
+        'foo<a href=http://www.google.com><font color=brown>[bar</font></a>baz]',
+        'foo<font color=brown><a href=http://www.google.com>[bar</a></font>baz]',
+        'foo<a href=http://www.google.com><font color=black>[bar</font></a>baz]',
+        'foo<a href=http://www.google.com><u>[bar</u></a>baz]',
+        'foo<u><a href=http://www.google.com>[bar</a></u>baz]',
+        'foo<sub><font size=2>[bar</font></sub>baz]',
+        'foo<font size=2><sub>[bar</sub></font>baz]',
+        'foo<sub><font size=3>[bar</font></sub>baz]',
+        'foo<font size=3><sub>[bar</sub></font>baz]',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=19702
+        '<blockquote><font color=blue>[foo]</font></blockquote>',
+    ],
+    //@}
+    insertunorderedlist: [
+    //@{
+        'foo[]bar',
+        'foo[bar]baz',
+        'foo<br>[bar]',
+        'f[oo<br>b]ar<br>baz',
+        '<p>[foo]<br>bar</p>',
+        '[foo<ol><li>bar]</ol>baz',
+        'foo<ol><li>[bar</ol>baz]',
+        '[foo<ul><li>bar]</ul>baz',
+        'foo<ul><li>[bar</ul>baz]',
+        'foo<ul><li>[bar</ul><ol><li>baz]</ol>quz',
+        'foo<ol><li>[bar</ol><ul><li>baz]</ul>quz',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr><td>fo[o<td>b]ar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        '<p>foo<p>[bar]<p>baz',
+        '<p>foo<blockquote>[bar]</blockquote><p>baz',
+        '<dl><dt>foo<dd>[bar]<dt>baz<dd>quz</dl>',
+        '<dl><dt>foo<dd>bar<dt>[baz]<dd>quz</dl>',
+
+        '<p>[foo<p>bar]<p>baz',
+        '<p>[foo<blockquote>bar]</blockquote><p>baz',
+        '<dl><dt>[foo<dd>bar]<dt>baz<dd>quz</dl>',
+        '<dl><dt>foo<dd>[bar<dt>baz]<dd>quz</dl>',
+
+        '<p>[foo<blockquote><p>bar]<p>baz</blockquote>',
+
+
+        // Various <ol> stuff
+        '<ol><li>foo<li>[bar]<li>baz</ol>',
+        '<ol><li>foo</ol>[bar]',
+        '[foo]<ol><li>bar</ol>',
+        '<ol><li>foo</ol>[bar]<ol><li>baz</ol>',
+        '<ol><ol><li>[foo]</ol></ol>',
+        '<ol><li>[foo]<br>bar<li>baz</ol>',
+        '<ol><li>foo<br>[bar]<li>baz</ol>',
+        '<ol><li><div>[foo]</div>bar<li>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>[foo]<ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>[foo]</li><ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>foo<li>[bar]<ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<li>[bar]</li><ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>baz</ol><li>[quz]</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>baz</ol><li>[quz]</ol>',
+
+        // Multiple items at once.
+        '<ol><li>foo<li>[bar<li>baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol><li>baz</ol>',
+        '<ol><li>foo<ol><li>b[ar</ol><li>b]az</ol>',
+        '<ol><li>[foo<ol><li>bar</ol><li>baz]</ol><p>extra',
+
+        // We probably can't actually get this DOM . . .
+        '<ol><li>[foo]<ol><li>bar</ol>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]</ol>baz</ol>',
+        '<ol><li>foo<ol><li>bar</ol>[baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol>baz</ol>',
+
+
+        // Same stuff but with <ul>
+        '<ul><li>foo<li>[bar]<li>baz</ul>',
+        '<ul><li>foo</ul>[bar]',
+        '[foo]<ul><li>bar</ul>',
+        '<ul><li>foo</ul>[bar]<ul><li>baz</ul>',
+        '<ul><ul><li>[foo]</ul></ul>',
+        '<ul><li>[foo]<br>bar<li>baz</ul>',
+        '<ul><li>foo<br>[bar]<li>baz</ul>',
+        '<ul><li><div>[foo]</div>bar<li>baz</ul>',
+        '<ul><li>foo<ul><li>[bar]<li>baz</ul><li>quz</ul>',
+        '<ul><li>foo<ul><li>bar<li>[baz]</ul><li>quz</ul>',
+        '<ul><li>foo</li><ul><li>[bar]<li>baz</ul><li>quz</ul>',
+        '<ul><li>foo</li><ul><li>bar<li>[baz]</ul><li>quz</ul>',
+        '<ul><li>[foo]<ul><li>bar</ul><li>baz</ul>',
+        '<ul><li>[foo]</li><ul><li>bar</ul><li>baz</ul>',
+        '<ul><li>foo<li>[bar]<ul><li>baz</ul><li>quz</ul>',
+        '<ul><li>foo<li>[bar]</li><ul><li>baz</ul><li>quz</ul>',
+        '<ul><li>foo<ul><li>bar<li>baz</ul><li>[quz]</ul>',
+        '<ul><li>foo</li><ul><li>bar<li>baz</ul><li>[quz]</ul>',
+
+        // Multiple items at once.
+        '<ul><li>foo<li>[bar<li>baz]</ul>',
+        '<ul><li>[foo<ul><li>bar]</ul><li>baz</ul>',
+        '<ul><li>foo<ul><li>b[ar</ul><li>b]az</ul>',
+        '<ul><li>[foo<ul><li>bar</ul><li>baz]</ul><p>extra',
+
+        // We probably can't actually get this DOM . . .
+        '<ul><li>[foo]<ul><li>bar</ul>baz</ul>',
+        '<ul><li>foo<ul><li>[bar]</ul>baz</ul>',
+        '<ul><li>foo<ul><li>bar</ul>[baz]</ul>',
+        '<ul><li>[foo<ul><li>bar]</ul>baz</ul>',
+
+
+        // Mix of <ol> and <ul>
+        'foo<ol><li>bar</ol><ul><li>[baz]</ul>quz',
+        'foo<ol><li>bar</ol><ul><li>[baz</ul>quz]',
+        'foo<ul><li>[bar]</ul><ol><li>baz</ol>quz',
+        '[foo<ul><li>bar]</ul><ol><li>baz</ol>quz',
+
+        // Interaction with indentation
+        '[foo]<blockquote>bar</blockquote>baz',
+        'foo<blockquote>[bar]</blockquote>baz',
+        '[foo<blockquote>bar]</blockquote>baz',
+        '<ol><li>foo</ol><blockquote>[bar]</blockquote>baz',
+        '[foo]<blockquote><ol><li>bar</ol></blockquote>baz',
+        'foo<blockquote>[bar]<br>baz</blockquote>',
+        '[foo<blockquote>bar]<br>baz</blockquote>',
+        '<ol><li>foo</ol><blockquote>[bar]<br>baz</blockquote>',
+
+        '<p>[foo]<blockquote><p>bar</blockquote><p>baz',
+        '<p>foo<blockquote><p>[bar]</blockquote><p>baz',
+        '<p>[foo<blockquote><p>bar]</blockquote><p>baz',
+        '<ol><li>foo</ol><blockquote><p>[bar]</blockquote><p>baz',
+
+        // Attributes
+        '<ul id=abc><li>foo<li>[bar]<li>baz</ul>',
+        '<ul style=color:blue><li>foo<li>[bar]<li>baz</ul>',
+        '<ul style=text-indent:1em><li>foo<li>[bar]<li>baz</ul>',
+        '<ul id=abc><li>[foo]<li>bar<li>baz</ul>',
+        '<ul style=color:blue><li>[foo]<li>bar<li>baz</ul>',
+        '<ul style=text-indent:1em><li>[foo]<li>bar<li>baz</ul>',
+        '<ul id=abc><li>foo<li>bar<li>[baz]</ul>',
+        '<ul style=color:blue><li>foo<li>bar<li>[baz]</ul>',
+        '<ul style=text-indent:1em><li>foo<li>bar<li>[baz]</ul>',
+
+        // Whitespace nodes
+        '<ul><li>foo</ul> <p>[bar]',
+        '<p>[foo]</p> <ul><li>bar</ul>',
+        '<ul><li>foo</ul> <p>[bar]</p> <ul><li>baz</ul>',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=24167
+        '{<div style="font-size: 1.3em">1</div><div style="font-size: 1.1em">2</div>}',
+    ],
+    //@}
+    italic: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<span style="font-style: italic">[bar]</span>baz',
+        'foo<address>[bar]</address>baz',
+        'foo<cite>[bar]</cite>baz',
+        'foo<dfn>[bar]</dfn>baz',
+        'foo<em>[bar]</em>baz',
+        'foo<i>[bar]</i>baz',
+        'foo<var>[bar]</var>baz',
+
+        'foo{<address>bar</address>}baz',
+        'foo{<cite>bar</cite>}baz',
+        'foo{<dfn>bar</dfn>}baz',
+        'foo{<em>bar</em>}baz',
+        'foo{<i>bar</i>}baz',
+        'foo{<var>bar</var>}baz',
+
+        'foo<address>b[a]r</address>baz',
+        'foo<cite>b[a]r</cite>baz',
+        'foo<dfn>b[a]r</dfn>baz',
+        'foo<em>b[a]r</em>baz',
+        'foo<i>b[a]r</i>baz',
+        'foo<var>b[a]r</var>baz',
+
+        'fo[o<address>bar</address>b]az',
+        'fo[o<cite>bar</cite>b]az',
+        'fo[o<dfn>bar</dfn>b]az',
+        'fo[o<em>bar</em>b]az',
+        'fo[o<i>bar</i>b]az',
+        'fo[o<var>bar</var>b]az',
+
+        'foo[<address>bar</address>baz]',
+        'foo[<cite>bar</cite>baz]',
+        'foo[<dfn>bar</dfn>baz]',
+        'foo[<em>bar</em>baz]',
+        'foo[<i>bar</i>baz]',
+        'foo[<var>bar</var>baz]',
+
+        '[foo<address>bar</address>]baz',
+        '[foo<cite>bar</cite>]baz',
+        '[foo<dfn>bar</dfn>]baz',
+        '[foo<em>bar</em>]baz',
+        '[foo<i>bar</i>]baz',
+        '[foo<var>bar</var>]baz',
+
+        'foo<span style="font-style: italic">[bar]</span>baz',
+        'foo<span style="font-style: oblique">[bar]</span>baz',
+        'foo<span style="font-style: oblique">b[a]r</span>baz',
+
+        '<i>{<p>foo</p><p>bar</p>}<p>baz</p></i>',
+        '<i><p>foo[<b>bar</b>}</p><p>baz</p></i>',
+        'foo [bar <b>baz] qoz</b> quz sic',
+        'foo bar <b>baz [qoz</b> quz] sic',
+        'foo [bar <i>baz] qoz</i> quz sic',
+        'foo bar <i>baz [qoz</i> quz] sic',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<i>b]ar</i>baz',
+        'foo<i>ba[r</i>b]az',
+        'fo[o<i>bar</i>b]az',
+        'foo[<i>b]ar</i>baz',
+        'foo<i>ba[r</i>]baz',
+        'foo[<i>bar</i>]baz',
+        'foo<i>[bar]</i>baz',
+        'foo{<i>bar</i>}baz',
+        'fo[o<span style=font-style:italic>b]ar</span>baz',
+        'fo[o<span style=font-style:oblique>b]ar</span>baz',
+        '<span style=font-style:italic>fo[o</span><span style=font-style:oblique>b]ar</span>',
+        '<span style=font-style:oblique>fo[o</span><span style=font-style:italic>b]ar</span>',
+        '<i>fo[o</i><address>b]ar</address>',
+    ],
+    //@}
+    justifycenter: [
+    //@{
+        'foo[]bar<p>extra',
+        '<span>foo</span>{}<span>bar</span><p>extra',
+        '<span>foo[</span><span>]bar</span><p>extra',
+        'foo[bar]baz<p>extra',
+        'foo[bar<b>baz]qoz</b>quz<p>extra',
+        '<p>foo[]bar<p>extra',
+        '<p>foo[bar]baz<p>extra',
+        '<h1>foo[bar]baz</h1><p>extra',
+        '<pre>foo[bar]baz</pre><p>extra',
+        '<xmp>foo[bar]baz</xmp><p>extra',
+        '<center><p>[foo]<p>bar</center><p>extra',
+        '<center><p>[foo<p>bar]</center><p>extra',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table align=center><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table align=center><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=center><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=center><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=center data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table align=center><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody align=center><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody align=center><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=center><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=center data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody align=center><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tbody align=center><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody><tr align=center><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr align=center data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr align=center data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr align=center><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr align=center><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr align=center><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<div align=center><p>[foo]<p>bar</div><p>extra',
+        '<div align=center><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:center><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:center><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=justify><p>[foo]<p>bar</div><p>extra',
+        '<div align=justify><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:justify><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:justify><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=left><p>[foo]<p>bar</div><p>extra',
+        '<div align=left><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:left><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:left><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=right><p>[foo]<p>bar</div><p>extra',
+        '<div align=right><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:right><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:right><p>[foo<p>bar]</div><p>extra',
+
+        '<center>foo</center>[bar]<p>extra',
+        '[foo]<center>bar</center><p>extra',
+        '<center>foo</center>[bar]<center>baz</center><p>extra',
+        '<div align=center>foo</div>[bar]<p>extra',
+        '[foo]<div align=center>bar</div><p>extra',
+        '<div align=center>foo</div>[bar]<div align=center>baz</div><p>extra',
+        '<div align=center><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div align=center><p>bar</div><p>extra',
+        '<div align=center><p>foo</div><p>[bar]<div align=center><p>baz</div><p>extra',
+        '<div style=text-align:center>foo</div>[bar]<p>extra',
+        '[foo]<div style=text-align:center>bar</div><p>extra',
+        '<div style=text-align:center>foo</div>[bar]<div style=text-align:center>baz</div><p>extra',
+        '<div style=text-align:center><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div style=text-align:center><p>bar</div><p>extra',
+        '<div style=text-align:center><p>foo</div><p>[bar]<div style=text-align:center><p>baz</div><p>extra',
+        '<p align=center>foo<p>[bar]<p>extra',
+        '<p>[foo]<p align=center>bar<p>extra',
+        '<p align=center>foo<p>[bar]<p align=center>baz<p>extra',
+
+        '<center>[foo</center>bar]<p>extra',
+        '<center>fo[o</center>b]ar<p>extra',
+        '<div align=center>[foo</div>bar]<p>extra',
+        '<div align=center>fo[o</div>b]ar<p>extra',
+        '<div style=text-align:center>[foo</div>bar]<p>extra',
+        '<div style=text-align:center>fo[o</div>b]ar<p>extra',
+        '<span style=text-align:center>[foo]</span><p>extra',
+        '<span style=text-align:center>f[o]o</span><p>extra',
+
+        '<div style=text-align:center>[foo<div style=text-align:left contenteditable=false>bar</div>baz]</div><p>extra',
+
+        '<div align=nonsense><p>[foo]</div><p>extra',
+        '<div style=text-align:inherit><p>[foo]</div><p>extra',
+        '<quasit align=right><p>[foo]</p></quasit><p>extra',
+
+        '<div align=center>{<div align=left>foo</div>}</div>',
+        '<div align=left>{<div align=center>foo</div>}</div>',
+        '<div align=center>{<div align=left>foo</div>bar}</div>',
+        '<div align=left>{<div align=center>foo</div>bar}</div>',
+        '<div align=center>{<div align=left>foo</div><img src=/img/lion.svg>}</div>',
+        '<div align=left>{<div align=center>foo</div><img src=/img/lion.svg>}</div>',
+        '<div align=center>{<div align=left>foo</div><!-- bar -->}</div>',
+        '<div align=left>{<div align=center>foo</div><!-- bar -->}</div>',
+
+        '<div style=text-align:start>[foo]</div><p>extra',
+        '<div style=text-align:end>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:start>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:end>[foo]</div><p>extra',
+
+        // Whitespace nodes
+        '<div style=text-align:center><p>foo</div> <p>[bar]',
+        '<div align=center><p>foo</div> <p>[bar]',
+        '<center><p>foo</center> <p>[bar]',
+        '<p>[foo]</p> <div style=text-align:center><p>bar</div>',
+        '<p>[foo]</p> <div align=center><p>bar</div>',
+        '<p>[foo]</p> <center><p>bar</center>',
+        '<div style=text-align:center><p>foo</div> <p>[bar]</p> <div style=text-align:center><p>baz</div>',
+        '<div align=center><p>foo</div> <p>[bar]</p> <div align=center><p>baz</div>',
+        '<center><p>foo</center> <p>[bar]</p> <center><p>baz</center>',
+    ],
+    //@}
+    justifyfull: [
+    //@{
+        'foo[]bar<p>extra',
+        '<span>foo</span>{}<span>bar</span><p>extra',
+        '<span>foo[</span><span>]bar</span><p>extra',
+        'foo[bar]baz<p>extra',
+        'foo[bar<b>baz]qoz</b>quz<p>extra',
+        '<p>foo[]bar<p>extra',
+        '<p>foo[bar]baz<p>extra',
+        '<h1>foo[bar]baz</h1><p>extra',
+        '<pre>foo[bar]baz</pre><p>extra',
+        '<xmp>foo[bar]baz</xmp><p>extra',
+        '<center><p>[foo]<p>bar</center><p>extra',
+        '<center><p>[foo<p>bar]</center><p>extra',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table align=justify><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table align=justify><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=justify><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=justify><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=justify data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table align=justify><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody align=justify><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody align=justify><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=justify><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=justify data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody align=justify><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tbody align=justify><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody><tr align=justify><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr align=justify data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr align=justify data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr align=justify><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr align=justify><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr align=justify><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<div align=center><p>[foo]<p>bar</div><p>extra',
+        '<div align=center><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:center><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:center><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=justify><p>[foo]<p>bar</div><p>extra',
+        '<div align=justify><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:justify><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:justify><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=left><p>[foo]<p>bar</div><p>extra',
+        '<div align=left><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:left><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:left><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=right><p>[foo]<p>bar</div><p>extra',
+        '<div align=right><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:right><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:right><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=justify>foo</div>[bar]<p>extra',
+        '[foo]<div align=justify>bar</div><p>extra',
+        '<div align=justify>foo</div>[bar]<div align=justify>baz</div><p>extra',
+        '<div align=justify><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div align=justify><p>bar</div><p>extra',
+        '<div align=justify><p>foo</div><p>[bar]<div align=justify><p>baz</div><p>extra',
+        '<div style=text-align:justify>foo</div>[bar]<p>extra',
+        '[foo]<div style=text-align:justify>bar</div><p>extra',
+        '<div style=text-align:justify>foo</div>[bar]<div style=text-align:justify>baz</div><p>extra',
+        '<div style=text-align:justify><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div style=text-align:justify><p>bar</div><p>extra',
+        '<div style=text-align:justify><p>foo</div><p>[bar]<div style=text-align:justify><p>baz</div><p>extra',
+        '<p align=justify>foo<p>[bar]<p>extra',
+        '<p>[foo]<p align=justify>bar<p>extra',
+        '<p align=justify>foo<p>[bar]<p align=justify>baz<p>extra',
+
+        '<div align=justify>[foo</div>bar]<p>extra',
+        '<div align=justify>fo[o</div>b]ar<p>extra',
+        '<div style=text-align:justify>[foo</div>bar]<p>extra',
+        '<div style=text-align:justify>fo[o</div>b]ar<p>extra',
+        '<span style=text-align:justify>[foo]</span><p>extra',
+        '<span style=text-align:justify>f[o]o</span><p>extra',
+
+        '<div style=text-align:justify>[foo<div style=text-align:left contenteditable=false>bar</div>baz]</div><p>extra',
+
+        '<div align=nonsense><p>[foo]</div><p>extra',
+        '<div style=text-align:inherit><p>[foo]</div><p>extra',
+        '<quasit align=center><p>[foo]</p></quasit><p>extra',
+
+        '<div style=text-align:start>[foo]</div><p>extra',
+        '<div style=text-align:end>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:start>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:end>[foo]</div><p>extra',
+
+        // Whitespace nodes
+        '<div style=text-align:justify><p>foo</div> <p>[bar]',
+        '<div align=justify><p>foo</div> <p>[bar]',
+        '<p>[foo]</p> <div style=text-align:justify><p>bar</div>',
+        '<p>[foo]</p> <div align=justify><p>bar</div>',
+        '<div style=text-align:justify><p>foo</div> <p>[bar]</p> <div style=text-align:justify><p>baz</div>',
+        '<div align=justify><p>foo</div> <p>[bar]</p> <div align=justify><p>baz</div>',
+    ],
+    //@}
+    justifyleft: [
+    //@{
+        'foo[]bar<p>extra',
+        '<span>foo</span>{}<span>bar</span><p>extra',
+        '<span>foo[</span><span>]bar</span><p>extra',
+        'foo[bar]baz<p>extra',
+        'foo[bar<b>baz]qoz</b>quz<p>extra',
+        '<p>foo[]bar<p>extra',
+        '<p>foo[bar]baz<p>extra',
+        '<h1>foo[bar]baz</h1><p>extra',
+        '<pre>foo[bar]baz</pre><p>extra',
+        '<xmp>foo[bar]baz</xmp><p>extra',
+        '<center><p>[foo]<p>bar</center><p>extra',
+        '<center><p>[foo<p>bar]</center><p>extra',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table align=left><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table align=left><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=left><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=left><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=left data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table align=left><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody align=left><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody align=left><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=left><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=left data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody align=left><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tbody align=left><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody><tr align=left><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr align=left data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr align=left data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr align=left><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr align=left><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr align=left><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<div align=center><p>[foo]<p>bar</div><p>extra',
+        '<div align=center><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:center><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:center><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=justify><p>[foo]<p>bar</div><p>extra',
+        '<div align=justify><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:justify><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:justify><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=left><p>[foo]<p>bar</div><p>extra',
+        '<div align=left><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:left><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:left><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=right><p>[foo]<p>bar</div><p>extra',
+        '<div align=right><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:right><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:right><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=left>foo</div>[bar]<p>extra',
+        '[foo]<div align=left>bar</div><p>extra',
+        '<div align=left>foo</div>[bar]<div align=left>baz</div><p>extra',
+        '<div align=left><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div align=left><p>bar</div><p>extra',
+        '<div align=left><p>foo</div><p>[bar]<div align=left><p>baz</div><p>extra',
+        '<div style=text-align:left>foo</div>[bar]<p>extra',
+        '[foo]<div style=text-align:left>bar</div><p>extra',
+        '<div style=text-align:left>foo</div>[bar]<div style=text-align:left>baz</div><p>extra',
+        '<div style=text-align:left><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div style=text-align:left><p>bar</div><p>extra',
+        '<div style=text-align:left><p>foo</div><p>[bar]<div style=text-align:left><p>baz</div><p>extra',
+        '<p align=left>foo<p>[bar]<p>extra',
+        '<p>[foo]<p align=left>bar<p>extra',
+        '<p align=left>foo<p>[bar]<p align=left>baz<p>extra',
+
+        '<div align=left>[foo</div>bar]<p>extra',
+        '<div align=left>fo[o</div>b]ar<p>extra',
+        '<div style=text-align:left>[foo</div>bar]<p>extra',
+        '<div style=text-align:left>fo[o</div>b]ar<p>extra',
+        '<span style=text-align:left>[foo]</span><p>extra',
+        '<span style=text-align:left>f[o]o</span><p>extra',
+
+        '<div style=text-align:left>[foo<div style=text-align:left contenteditable=false>bar</div>baz]</div><p>extra',
+
+        '<div align=nonsense><p>[foo]</div><p>extra',
+        '<div style=text-align:inherit><p>[foo]</div><p>extra',
+        '<quasit align=center><p>[foo]</p></quasit><p>extra',
+
+        '<div style=text-align:start>[foo]</div><p>extra',
+        '<div style=text-align:end>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:start>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:end>[foo]</div><p>extra',
+
+        // Whitespace nodes
+        '<div style=text-align:left><p>foo</div> <p>[bar]',
+        '<div align=left><p>foo</div> <p>[bar]',
+        '<p>[foo]</p> <div style=text-align:left><p>bar</div>',
+        '<p>[foo]</p> <div align=left><p>bar</div>',
+        '<div style=text-align:left><p>foo</div> <p>[bar]</p> <div style=text-align:left><p>baz</div>',
+        '<div align=left><p>foo</div> <p>[bar]</p> <div align=left><p>baz</div>',
+    ],
+    //@}
+    justifyright: [
+    //@{
+        'foo[]bar<p>extra',
+        '<span>foo</span>{}<span>bar</span><p>extra',
+        '<span>foo[</span><span>]bar</span><p>extra',
+        'foo[bar]baz<p>extra',
+        'foo[bar<b>baz]qoz</b>quz<p>extra',
+        '<p>foo[]bar<p>extra',
+        '<p>foo[bar]baz<p>extra',
+        '<h1>foo[bar]baz</h1><p>extra',
+        '<pre>foo[bar]baz</pre><p>extra',
+        '<xmp>foo[bar]baz</xmp><p>extra',
+        '<center><p>[foo]<p>bar</center><p>extra',
+        '<center><p>[foo<p>bar]</center><p>extra',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table align=right><tbody><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table align=right><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=right><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=right><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table align=right data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table align=right><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody align=right><tr><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody align=right><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=right><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody align=right data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody align=right><tr><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tbody align=right><tr><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<table><tbody><tr align=right><td>foo<td>b[a]r<td>baz</table><p>extra',
+        '<table><tbody><tr align=right data-start=1 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody><tr align=right data-start=0 data-end=2><td>foo<td>bar<td>baz</table><p>extra',
+        '<table><tbody data-start=0 data-end=1><tr align=right><td>foo<td>bar<td>baz</table><p>extra',
+        '<table data-start=0 data-end=1><tbody><tr align=right><td>foo<td>bar<td>baz</table><p>extra',
+        '{<table><tr align=right><td>foo<td>bar<td>baz</table>}<p>extra',
+
+        '<div align=center><p>[foo]<p>bar</div><p>extra',
+        '<div align=center><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:center><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:center><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=justify><p>[foo]<p>bar</div><p>extra',
+        '<div align=justify><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:justify><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:justify><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=left><p>[foo]<p>bar</div><p>extra',
+        '<div align=left><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:left><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:left><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=right><p>[foo]<p>bar</div><p>extra',
+        '<div align=right><p>[foo<p>bar}</div><p>extra',
+        '<div style=text-align:right><p>[foo]<p>bar</div><p>extra',
+        '<div style=text-align:right><p>[foo<p>bar]</div><p>extra',
+
+        '<div align=right>foo</div>[bar]<p>extra',
+        '[foo]<div align=right>bar</div><p>extra',
+        '<div align=right>foo</div>[bar]<div align=right>baz</div><p>extra',
+        '<div align=right><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div align=right><p>bar</div><p>extra',
+        '<div align=right><p>foo</div><p>[bar]<div align=right><p>baz</div><p>extra',
+        '<div style=text-align:right>foo</div>[bar]<p>extra',
+        '[foo]<div style=text-align:right>bar</div><p>extra',
+        '<div style=text-align:right>foo</div>[bar]<div style=text-align:right>baz</div><p>extra',
+        '<div style=text-align:right><p>foo</div><p>[bar]<p>extra',
+        '<p>[foo]<div style=text-align:right><p>bar</div><p>extra',
+        '<div style=text-align:right><p>foo</div><p>[bar]<div style=text-align:right><p>baz</div><p>extra',
+        '<p align=right>foo<p>[bar]<p>extra',
+        '<p>[foo]<p align=right>bar<p>extra',
+        '<p align=right>foo<p>[bar]<p align=right>baz<p>extra',
+
+        '<div align=right>[foo</div>bar]<p>extra',
+        '<div align=right>fo[o</div>b]ar<p>extra',
+        '<div style=text-align:right>[foo</div>bar]<p>extra',
+        '<div style=text-align:right>fo[o</div>b]ar<p>extra',
+        '<span style=text-align:right>[foo]</span><p>extra',
+        '<span style=text-align:right>f[o]o</span><p>extra',
+
+        '<div style=text-align:right>[foo<div style=text-align:left contenteditable=false>bar</div>baz]</div><p>extra',
+
+        '<div align=nonsense><p>[foo]</div><p>extra',
+        '<div style=text-align:inherit><p>[foo]</div><p>extra',
+        '<quasit align=center><p>[foo]</p></quasit><p>extra',
+
+        '<div style=text-align:start>[foo]</div><p>extra',
+        '<div style=text-align:end>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:start>[foo]</div><p>extra',
+        '<div dir=rtl style=text-align:end>[foo]</div><p>extra',
+
+        // Whitespace nodes
+        '<div style=text-align:right><p>foo</div> <p>[bar]',
+        '<div align=right><p>foo</div> <p>[bar]',
+        '<p>[foo]</p> <div style=text-align:right><p>bar</div>',
+        '<p>[foo]</p> <div align=right><p>bar</div>',
+        '<div style=text-align:right><p>foo</div> <p>[bar]</p> <div style=text-align:right><p>baz</div>',
+        '<div align=right><p>foo</div> <p>[bar]</p> <div align=right><p>baz</div>',
+    ],
+    //@}
+    outdent: [
+    //@{
+        // These mimic existing indentation in various browsers, to see how
+        // they cope with outdenting various things.  This is spec, Gecko
+        // non-CSS, and Opera:
+        '<blockquote><p>foo[bar]</p><p>baz</p></blockquote><p>extra',
+        '<blockquote><p>foo[bar</p><p>b]az</p></blockquote><p>extra',
+        '<blockquote><p>foo[bar]</p></blockquote><p>baz</p><p>extra',
+        '<blockquote><p>foo[bar</p></blockquote><p>b]az</p><p>extra',
+
+        // IE:
+        '<blockquote style="margin-right: 0px;" dir="ltr"><p>foo[bar]</p><p>baz</p></blockquote><p>extra',
+        '<blockquote style="margin-right: 0px;" dir="ltr"><p>foo[bar</p><p>b]az</p></blockquote><p>extra',
+        '<blockquote style="margin-right: 0px;" dir="ltr"><p>foo[bar]</p></blockquote><p>baz</p><p>extra',
+        '<blockquote style="margin-right: 0px;" dir="ltr"><p>foo[bar</p></blockquote><p>b]az</p><p>extra',
+
+        // Firefox CSS mode:
+        '<p style="margin-left: 40px">foo[bar]</p><p style="margin-left: 40px">baz</p><p>extra',
+        '<p style="margin-left: 40px">foo[bar</p><p style="margin-left: 40px">b]az</p><p>extra',
+        '<p style="margin-left: 40px">foo[bar]</p><p>baz</p><p>extra',
+        '<p style="margin-left: 40px">foo[bar</p><p>b]az</p><p>extra',
+
+        // WebKit:
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px;"><p>foo[bar]</p><p>baz</p></blockquote><p>extra',
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px;"><p>foo[bar</p><p>b]az</p></blockquote><p>extra',
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px;"><p>foo[bar]</p></blockquote><p>baz</p><p>extra',
+        '<blockquote class="webkit-indent-blockquote" style="margin: 0 0 0 40px; border: none; padding: 0px;"><p>foo[bar</p></blockquote><p>b]az</p><p>extra',
+
+        // Now let's try nesting lots of stuff and see what happens.
+        '<blockquote><blockquote>foo[bar]baz</blockquote></blockquote>',
+        '<blockquote><blockquote data-abc=def>foo[bar]baz</blockquote></blockquote>',
+        '<blockquote data-abc=def><blockquote>foo[bar]baz</blockquote></blockquote>',
+        '<blockquote><div>foo[bar]baz</div></blockquote>',
+        '<blockquote><div id=abc>foo[bar]baz</div></blockquote>',
+        '<blockquote id=abc>foo[bar]baz</blockquote>',
+        '<blockquote style="color: blue">foo[bar]baz</blockquote>',
+
+        '<blockquote><blockquote><p>foo[bar]<p>baz</blockquote></blockquote>',
+        '<blockquote><blockquote data-abc=def><p>foo[bar]<p>baz</blockquote></blockquote>',
+        '<blockquote data-abc=def><blockquote><p>foo[bar]<p>baz</blockquote></blockquote>',
+        '<blockquote><div><p>foo[bar]<p>baz</div></blockquote>',
+        '<blockquote><div id=abc><p>foo[bar]<p>baz</div></blockquote>',
+        '<blockquote id=abc><p>foo[bar]<p>baz</blockquote>',
+        '<blockquote style="color: blue"><p>foo[bar]<p>baz</blockquote>',
+
+        '<blockquote><p><b>foo[bar]</b><p>baz</blockquote>',
+        '<blockquote><p><strong>foo[bar]</strong><p>baz</blockquote>',
+        '<blockquote><p><span>foo[bar]</span><p>baz</blockquote>',
+        '<blockquote><blockquote style="color: blue"><p>foo[bar]</blockquote><p>baz</blockquote>',
+        '<blockquote style="color: blue"><blockquote><p>foo[bar]</blockquote><p>baz</blockquote>',
+
+        // Lists!
+        '<ol><li>foo<li>[bar]<li>baz</ol>',
+        '<ol data-start=1 data-end=2><li>foo<li>bar<li>baz</ol>',
+        '<ol><li>foo</ol>[bar]',
+        '<ol><li>[foo]<br>bar<li>baz</ol>',
+        '<ol><li>foo<br>[bar]<li>baz</ol>',
+        '<ol><li><div>[foo]</div>bar<li>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>[bar]<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol data-start=0 data-end=1><li>bar<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>[baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol data-start=1 data-end=2><li>bar<li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>b[a]r</ol><li>baz</ol>',
+        '<ol><li>foo</li><ol><li>b[a]r</ol><li>baz</ol>',
+        '<ol><li>foo{<ol><li>bar</ol>}<li>baz</ol>',
+        '<ol><li>foo</li>{<ol><li>bar</ol>}<li>baz</ol>',
+        '<ol><li>[foo]<ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>[foo]</li><ol><li>bar</ol><li>baz</ol>',
+        '<ol><li>foo<li>[bar]<ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<li>[bar]</li><ol><li>baz</ol><li>quz</ol>',
+        '<ol><li>foo<ol><li>bar<li>baz</ol><li>[quz]</ol>',
+        '<ol><li>foo</li><ol><li>bar<li>baz</ol><li>[quz]</ol>',
+
+        // Try outdenting multiple items at once.
+        '<ol><li>foo<li>b[ar<li>baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol><li>baz</ol>',
+        '<ol><li>[foo</li><ol><li>bar]</ol><li>baz</ol>',
+        '<ol><li>foo<ol><li>b[ar</ol><li>b]az</ol>',
+        '<ol><li>foo</li><ol><li>b[ar</ol><li>b]az</ol>',
+        '<ol><li>[foo<ol><li>bar</ol><li>baz]</ol><p>extra',
+        '<ol><li>[foo</li><ol><li>bar</ol><li>baz]</ol><p>extra',
+
+        // We probably can't actually get this DOM . . .
+        '<ol><li>[foo]<ol><li>bar</ol>baz</ol>',
+        '<ol><li>foo<ol><li>[bar]</ol>baz</ol>',
+        '<ol><li>foo<ol><li>bar</ol>[baz]</ol>',
+        '<ol><li>[foo<ol><li>bar]</ol>baz</ol>',
+
+        // Attribute handling on lists
+        'foo<ol start=5><li>[bar]</ol>baz',
+        'foo<ol id=abc><li>[bar]</ol>baz',
+        'foo<ol style=color:blue><li>[bar]</ol>baz',
+        'foo<ol><li value=5>[bar]</ol>baz',
+        'foo<ol><li id=abc>[bar]</ol>baz',
+        'foo<ol><li style=color:blue>[bar]</ol>baz',
+        '<ol><li>foo</li><ol><li value=5>[bar]</ol></ol>',
+        '<ul><li>foo</li><ol><li value=5>[bar]</ol></ul>',
+        '<ol><li>foo</li><ol start=5><li>[bar]</ol><li>baz</ol>',
+        '<ol><li>foo</li><ol id=abc><li>[bar]</ol><li>baz</ol>',
+        '<ol><li>foo</li><ol style=color:blue><li>[bar]</ol><li>baz</ol>',
+        '<ol><li>foo</li><ol style=text-indent:1em><li>[bar]</ol><li>baz</ol>',
+        '<ol><li>foo</li><ol start=5><li>[bar<li>baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol id=abc><li>[bar<li>baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol style=color:blue><li>[bar<li>baz]</ol><li>quz</ol>',
+        '<ol><li>foo</li><ol style=text-indent:1em><li>[bar<li>baz]</ol><li>quz</ol>',
+
+        // List inside indentation element
+        '<blockquote><ol><li>[foo]</ol></blockquote><p>extra',
+        '<blockquote>foo<ol><li>[bar]</ol>baz</blockquote><p>extra',
+        '<blockquote><ol><li>foo</li><ol><li>[bar]</ol><li>baz</ol></blockquote><p>extra',
+
+        '<ol><li><h1>[foo]</h1></ol>',
+        '<ol><li><xmp>[foo]</xmp></li></ol>',
+        '<blockquote><ol><li>foo<div><ol><li>[bar]</ol></div><li>baz</ol></blockquote>',
+
+        // Whitespace nodes
+        '<blockquote> <p>[foo]</p></blockquote>',
+        '<blockquote><p>[foo]</p> </blockquote>',
+        '<blockquote> <p>[foo]</p> </blockquote>',
+        '<ol> <li>[foo]</li></ol>',
+        '<ol><li>[foo]</li> </ol>',
+        '<ol> <li>[foo]</li> </ol>',
+        '<ul> <li>[foo]</li></ul>',
+        '<ul><li>[foo]</li> </ul>',
+        '<ul> <li>[foo]</li> </ul>',
+        '<blockquote> <p>[foo]</p> <p>bar</p> <p>baz</p></blockquote>',
+        '<blockquote> <p>foo</p> <p>[bar]</p> <p>baz</p></blockquote>',
+        '<blockquote> <p>foo</p> <p>bar</p> <p>[baz]</p></blockquote>',
+        '<ol> <li>[foo]</li> <li>bar</li> <li>baz</li></ol>',
+        '<ol> <li>foo</li> <li>[bar]</li> <li>baz</li></ol>',
+        '<ol> <li>foo</li> <li>bar</li> <li>[baz]</li></ol>',
+        '<ul> <li>[foo]</li> <li>bar</li> <li>baz</li></ul>',
+        '<ul> <li>foo</li> <li>[bar]</li> <li>baz</li></ul>',
+        '<ul> <li>foo</li> <li>bar</li> <li>[baz]</li></ul>',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=24249
+        '<ol><li>[]a<table><tr><td><br></table></ol>',
+        // https://bugs.webkit.org/show_bug.cgi?id=43447
+        '<blockquote><span>foo<br>[bar]</span></blockquote>',
+    ],
+    //@}
+    removeformat: [
+    //@{
+        'foo[]bar',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        '[foo<b>bar</b>baz]',
+        'foo[<b>bar</b>baz]',
+        'foo[<b>bar</b>]baz',
+        'foo<b>[bar]</b>baz',
+        'foo<b>b[a]r</b>baz',
+        '[foo<strong>bar</strong>baz]',
+        '[foo<span style="font-weight: bold">bar</span>baz]',
+        'foo<span style="font-weight: bold">b[a]r</span>baz',
+        '[foo<span style="font-variant: small-caps">bar</span>baz]',
+        'foo<span style="font-variant: small-caps">b[a]r</span>baz',
+        '[foo<b id=foo>bar</b>baz]',
+        'foo<b id=foo>b[a]r</b>baz',
+
+        // HTML has lots of inline elements, doesn't it?
+        '[foo<a>bar</a>baz]',
+        'foo<a>b[a]r</a>baz',
+        '[foo<a href=foo>bar</a>baz]',
+        'foo<a href=foo>b[a]r</a>baz',
+        '[foo<abbr>bar</abbr>baz]',
+        'foo<abbr>b[a]r</abbr>baz',
+        '[foo<acronym>bar</acronym>baz]',
+        'foo<acronym>b[a]r</acronym>baz',
+        '[foo<b>bar</b>baz]',
+        'foo<b>b[a]r</b>baz',
+        '[foo<bdi dir=rtl>bar</bdi>baz]',
+        'foo<bdi dir=rtl>b[a]r</bdi>baz',
+        '[foo<bdo dir=rtl>bar</bdo>baz]',
+        'foo<bdo dir=rtl>b[a]r</bdo>baz',
+        '[foo<big>bar</big>baz]',
+        'foo<big>b[a]r</big>baz',
+        '[foo<blink>bar</blink>baz]',
+        'foo<blink>b[a]r</blink>baz',
+        '[foo<cite>bar</cite>baz]',
+        'foo<cite>b[a]r</cite>baz',
+        '[foo<code>bar</code>baz]',
+        'foo<code>b[a]r</code>baz',
+        '[foo<del>bar</del>baz]',
+        'foo<del>b[a]r</del>baz',
+        '[foo<dfn>bar</dfn>baz]',
+        'foo<dfn>b[a]r</dfn>baz',
+        '[foo<em>bar</em>baz]',
+        'foo<em>b[a]r</em>baz',
+        '[foo<font>bar</font>baz]',
+        'foo<font>b[a]r</font>baz',
+        '[foo<font color=blue>bar</font>baz]',
+        'foo<font color=blue>b[a]r</font>baz',
+        '[foo<i>bar</i>baz]',
+        'foo<i>b[a]r</i>baz',
+        '[foo<ins>bar</ins>baz]',
+        'foo<ins>b[a]r</ins>baz',
+        '[foo<kbd>bar</kbd>baz]',
+        'foo<kbd>b[a]r</kbd>baz',
+        '[foo<mark>bar</mark>baz]',
+        'foo<mark>b[a]r</mark>baz',
+        '[foo<nobr>bar</nobr>baz]',
+        'foo<nobr>b[a]r</nobr>baz',
+        '[foo<q>bar</q>baz]',
+        'foo<q>b[a]r</q>baz',
+        '[foo<samp>bar</samp>baz]',
+        'foo<samp>b[a]r</samp>baz',
+        '[foo<s>bar</s>baz]',
+        'foo<s>b[a]r</s>baz',
+        '[foo<small>bar</small>baz]',
+        'foo<small>b[a]r</small>baz',
+        '[foo<span>bar</span>baz]',
+        'foo<span>b[a]r</span>baz',
+        '[foo<strike>bar</strike>baz]',
+        'foo<strike>b[a]r</strike>baz',
+        '[foo<strong>bar</strong>baz]',
+        'foo<strong>b[a]r</strong>baz',
+        '[foo<sub>bar</sub>baz]',
+        'foo<sub>b[a]r</sub>baz',
+        '[foo<sup>bar</sup>baz]',
+        'foo<sup>b[a]r</sup>baz',
+        '[foo<tt>bar</tt>baz]',
+        'foo<tt>b[a]r</tt>baz',
+        '[foo<u>bar</u>baz]',
+        'foo<u>b[a]r</u>baz',
+        '[foo<var>bar</var>baz]',
+        'foo<var>b[a]r</var>baz',
+
+        // Empty and replaced elements
+        '[foo<br>bar]',
+        '[foo<hr>bar]',
+        '[foo<wbr>bar]',
+        '[foo<img>bar]',
+        '[foo<img src=abc>bar]',
+        '[foo<video></video>bar]',
+        '[foo<video src=abc></video>bar]',
+        '[foo<svg><circle fill=blue r=20 cx=20 cy=20 /></svg>bar]',
+
+        // Unrecognized elements
+        '[foo<nonexistentelement>bar</nonexistentelement>baz]',
+        'foo<nonexistentelement>b[a]r</nonexistentelement>baz',
+        '[foo<nonexistentelement style="display: block">bar</nonexistentelement>baz]',
+        'foo<nonexistentelement style="display: block">b[a]r</nonexistentelement>baz',
+
+        // Random stuff
+        '[foo<span id=foo>bar</span>baz]',
+        'foo<span id=foo>b[a]r</span>baz',
+        '[foo<span class=foo>bar</span>baz]',
+        'foo<span class=foo>b[a]r</span>baz',
+        '[foo<b style="font-weight: normal">bar</b>baz]',
+        'foo<b style="font-weight: normal">b[a]r</b>baz',
+        '<p style="background-color: aqua">foo[bar]baz</p>',
+        '<p><span style="background-color: aqua">foo[bar]baz</span></p>',
+        '<p style="font-weight: bold">foo[bar]baz</p>',
+        '<b><p style="font-weight: bold">foo[bar]baz</p></b>',
+        '<p style="font-variant: small-caps">foo[bar]baz</p>',
+        '{<p style="font-variant: small-caps">foobarbaz</p>}',
+        '<p style="text-indent: 2em">foo[bar]baz</p>',
+        '{<p style="text-indent: 2em">foobarbaz</p>}',
+
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=649138
+        // Chrome 15 dev fails this for some unclear reason.
+        '<table data-start=0 data-end=1><tr><td><b>foo</b></table>',
+    ],
+    //@}
+    strikethrough: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<u>[bar]</u>baz',
+        'foo<span style="text-decoration: underline">[bar]</span>baz',
+        '<u>foo[bar]baz</u>',
+        '<u>foo[b<span style="color:blue">ar]ba</span>z</u>',
+        '<u>foo[b<span style="color:blue" id=foo>ar]ba</span>z</u>',
+        '<u>foo[b<span style="font-size:3em">ar]ba</span>z</u>',
+        '<u>foo[b<i>ar]ba</i>z</u>',
+        '<p style="text-decoration: underline">foo[bar]baz</p>',
+
+        'foo<s>[bar]</s>baz',
+        'foo<span style="text-decoration: line-through">[bar]</span>baz',
+        '<s>foo[bar]baz</s>',
+        '<s>foo[b<span style="color:blue">ar]ba</span>z</s>',
+        '<s>foo[b<span style="color:blue" id=foo>ar]ba</span>z</s>',
+        '<s>foo[b<span style="font-size:3em">ar]ba</span>z</s>',
+        '<s>foo[b<i>ar]ba</i>z</s>',
+        '<p style="text-decoration: line-through">foo[bar]baz</p>',
+
+        'foo<strike>[bar]</strike>baz',
+        '<strike>foo[bar]baz</strike>',
+        '<strike>foo[b<span style="color:blue">ar]ba</span>z</strike>',
+        '<strike>foo[b<span style="color:blue" id=foo>ar]ba</span>z</strike>',
+        '<strike>foo[b<span style="font-size:3em">ar]ba</span>z</strike>',
+        '<strike>foo[b<i>ar]ba</i>z</strike>',
+
+        'foo<ins>[bar]</ins>baz',
+        '<ins>foo[bar]baz</ins>',
+        '<ins>foo[b<span style="color:blue">ar]ba</span>z</ins>',
+        '<ins>foo[b<span style="color:blue" id=foo>ar]ba</span>z</ins>',
+        '<ins>foo[b<span style="font-size:3em">ar]ba</span>z</ins>',
+        '<ins>foo[b<i>ar]ba</i>z</ins>',
+
+        'foo<del>[bar]</del>baz',
+        '<del>foo[bar]baz</del>',
+        '<del>foo[b<span style="color:blue">ar]ba</span>z</del>',
+        '<del>foo[b<span style="color:blue" id=foo>ar]ba</span>z</del>',
+        '<del>foo[b<span style="font-size:3em">ar]ba</span>z</del>',
+        '<del>foo[b<i>ar]ba</i>z</del>',
+
+        'foo<span style="text-decoration: underline line-through">[bar]</span>baz',
+        'foo<span style="text-decoration: underline line-through">b[a]r</span>baz',
+        'foo<s style="text-decoration: underline">[bar]</s>baz',
+        'foo<s style="text-decoration: underline">b[a]r</s>baz',
+        'foo<u style="text-decoration: line-through">[bar]</u>baz',
+        'foo<u style="text-decoration: line-through">b[a]r</u>baz',
+        'foo<s style="text-decoration: overline">[bar]</s>baz',
+        'foo<s style="text-decoration: overline">b[a]r</s>baz',
+        'foo<u style="text-decoration: overline">[bar]</u>baz',
+        'foo<u style="text-decoration: overline">b[a]r</u>baz',
+
+        '<p style="text-decoration: line-through">foo[bar]baz</p>',
+        '<p style="text-decoration: overline">foo[bar]baz</p>',
+
+        'foo<span class="underline">[bar]</span>baz',
+        'foo<span class="underline">b[a]r</span>baz',
+        'foo<span class="line-through">[bar]</span>baz',
+        'foo<span class="line-through">b[a]r</span>baz',
+        'foo<span class="underline-and-line-through">[bar]</span>baz',
+        'foo<span class="underline-and-line-through">b[a]r</span>baz',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<s>b]ar</s>baz',
+        'foo<s>ba[r</s>b]az',
+        'fo[o<s>bar</s>b]az',
+        'foo[<s>b]ar</s>baz',
+        'foo<s>ba[r</s>]baz',
+        'foo[<s>bar</s>]baz',
+        'foo<s>[bar]</s>baz',
+        'foo{<s>bar</s>}baz',
+        'fo[o<span style=text-decoration:line-through>b]ar</span>baz',
+        '<strike>fo[o</strike><s>b]ar</s>',
+        '<s>fo[o</s><del>b]ar</del>',
+    ],
+    //@}
+    subscript: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<sub>[bar]</sub>baz',
+        'foo<sub>b[a]r</sub>baz',
+        'foo<sup>[bar]</sup>baz',
+        'foo<sup>b[a]r</sup>baz',
+
+        'foo<span style=vertical-align:sub>[bar]</span>baz',
+        'foo<span style=vertical-align:super>[bar]</span>baz',
+
+        'foo<sub><sub>[bar]</sub></sub>baz',
+        'foo<sub><sub>b[a]r</sub></sub>baz',
+        'foo<sub>b<sub>[a]</sub>r</sub>baz',
+        'foo<sup><sup>[bar]</sup></sup>baz',
+        'foo<sup><sup>b[a]r</sup></sup>baz',
+        'foo<sup>b<sup>[a]</sup>r</sup>baz',
+        'foo<sub><sup>[bar]</sup></sub>baz',
+        'foo<sub><sup>b[a]r</sup></sub>baz',
+        'foo<sub>b<sup>[a]</sup>r</sub>baz',
+        'foo<sup><sub>[bar]</sub></sup>baz',
+        'foo<sup><sub>b[a]r</sub></sup>baz',
+        'foo<sup>b<sub>[a]</sub>r</sup>baz',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<sub>b]ar</sub>baz',
+        'foo<sub>ba[r</sub>b]az',
+        'fo[o<sub>bar</sub>b]az',
+        'foo[<sub>b]ar</sub>baz',
+        'foo<sub>ba[r</sub>]baz',
+        'foo[<sub>bar</sub>]baz',
+        'foo<sub>[bar]</sub>baz',
+        'foo{<sub>bar</sub>}baz',
+        '<sub>fo[o</sub><sup>b]ar</sup>',
+        '<sub>fo[o</sub><span style=vertical-align:sub>b]ar</span>',
+        'foo<span style=vertical-align:top>[bar]</span>baz',
+        '<sub>fo[o</sub><span style=vertical-align:top>b]ar</span>',
+    ],
+    //@}
+    superscript: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<sub>[bar]</sub>baz',
+        'foo<sub>b[a]r</sub>baz',
+        'foo<sup>[bar]</sup>baz',
+        'foo<sup>b[a]r</sup>baz',
+
+        'foo<span style=vertical-align:sub>[bar]</span>baz',
+        'foo<span style=vertical-align:super>[bar]</span>baz',
+
+        'foo<sub><sub>[bar]</sub></sub>baz',
+        'foo<sub><sub>b[a]r</sub></sub>baz',
+        'foo<sub>b<sub>[a]</sub>r</sub>baz',
+        'foo<sup><sup>[bar]</sup></sup>baz',
+        'foo<sup><sup>b[a]r</sup></sup>baz',
+        'foo<sup>b<sup>[a]</sup>r</sup>baz',
+        'foo<sub><sup>[bar]</sup></sub>baz',
+        'foo<sub><sup>b[a]r</sup></sub>baz',
+        'foo<sub>b<sup>[a]</sup>r</sub>baz',
+        'foo<sup><sub>[bar]</sub></sup>baz',
+        'foo<sup><sub>b[a]r</sub></sup>baz',
+        'foo<sup>b<sub>[a]</sub>r</sup>baz',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<sup>b]ar</sup>baz',
+        'foo<sup>ba[r</sup>b]az',
+        'fo[o<sup>bar</sup>b]az',
+        'foo[<sup>b]ar</sup>baz',
+        'foo<sup>ba[r</sup>]baz',
+        'foo[<sup>bar</sup>]baz',
+        'foo<sup>[bar]</sup>baz',
+        'foo{<sup>bar</sup>}baz',
+        '<sup>fo[o</sup><sub>b]ar</sub>',
+        '<sup>fo[o</sup><span style=vertical-align:super>b]ar</span>',
+        'foo<span style=vertical-align:bottom>[bar]</span>baz',
+        '<sup>fo[o</sup><span style=vertical-align:bottom>b]ar</span>',
+
+        // https://bugs.webkit.org/show_bug.cgi?id=28472
+        'foo<sup>[bar]<br></sup>',
+    ],
+    //@}
+    underline: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<p>[foo<p><br><p>bar]',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<table><tbody><tr><td>foo<td>b[a]r<td>baz</table>',
+        '<table><tbody><tr data-start=1 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody><tr data-start=0 data-end=2><td>foo<td>bar<td>baz</table>',
+        '<table><tbody data-start=0 data-end=1><tr><td>foo<td>bar<td>baz</table>',
+        '<table data-start=0 data-end=1><tbody><tr><td>foo<td>bar<td>baz</table>',
+        '{<table><tr><td>foo<td>bar<td>baz</table>}',
+
+        'foo<u>[bar]</u>baz',
+        'foo<span style="text-decoration: underline">[bar]</span>baz',
+        '<u>foo[bar]baz</u>',
+        '<u>foo[b<span style="color:blue">ar]ba</span>z</u>',
+        '<u>foo[b<span style="color:blue" id=foo>ar]ba</span>z</u>',
+        '<u>foo[b<span style="font-size:3em">ar]ba</span>z</u>',
+        '<u>foo[b<i>ar]ba</i>z</u>',
+        '<p style="text-decoration: underline">foo[bar]baz</p>',
+
+        'foo<s>[bar]</s>baz',
+        'foo<span style="text-decoration: line-through">[bar]</span>baz',
+        '<s>foo[bar]baz</s>',
+        '<s>foo[b<span style="color:blue">ar]ba</span>z</s>',
+        '<s>foo[b<span style="color:blue" id=foo>ar]ba</span>z</s>',
+        '<s>foo[b<span style="font-size:3em">ar]ba</span>z</s>',
+        '<s>foo[b<i>ar]ba</i>z</s>',
+        '<p style="text-decoration: line-through">foo[bar]baz</p>',
+
+        'foo<strike>[bar]</strike>baz',
+        '<strike>foo[bar]baz</strike>',
+        '<strike>foo[b<span style="color:blue">ar]ba</span>z</strike>',
+        '<strike>foo[b<span style="color:blue" id=foo>ar]ba</span>z</strike>',
+        '<strike>foo[b<span style="font-size:3em">ar]ba</span>z</strike>',
+        '<strike>foo[b<i>ar]ba</i>z</strike>',
+
+        'foo<ins>[bar]</ins>baz',
+        '<ins>foo[bar]baz</ins>',
+        '<ins>foo[b<span style="color:blue">ar]ba</span>z</ins>',
+        '<ins>foo[b<span style="color:blue" id=foo>ar]ba</span>z</ins>',
+        '<ins>foo[b<span style="font-size:3em">ar]ba</span>z</ins>',
+        '<ins>foo[b<i>ar]ba</i>z</ins>',
+
+        'foo<del>[bar]</del>baz',
+        '<del>foo[bar]baz</del>',
+        '<del>foo[b<span style="color:blue">ar]ba</span>z</del>',
+        '<del>foo[b<span style="color:blue" id=foo>ar]ba</span>z</del>',
+        '<del>foo[b<span style="font-size:3em">ar]ba</span>z</del>',
+        '<del>foo[b<i>ar]ba</i>z</del>',
+
+        'foo<span style="text-decoration: underline line-through">[bar]</span>baz',
+        'foo<span style="text-decoration: underline line-through">b[a]r</span>baz',
+        'foo<s style="text-decoration: underline">[bar]</s>baz',
+        'foo<s style="text-decoration: underline">b[a]r</s>baz',
+        'foo<u style="text-decoration: line-through">[bar]</u>baz',
+        'foo<u style="text-decoration: line-through">b[a]r</u>baz',
+        'foo<s style="text-decoration: overline">[bar]</s>baz',
+        'foo<s style="text-decoration: overline">b[a]r</s>baz',
+        'foo<u style="text-decoration: overline">[bar]</u>baz',
+        'foo<u style="text-decoration: overline">b[a]r</u>baz',
+
+        '<p style="text-decoration: line-through">foo[bar]baz</p>',
+        '<p style="text-decoration: overline">foo[bar]baz</p>',
+
+        'foo<span class="underline">[bar]</span>baz',
+        'foo<span class="underline">b[a]r</span>baz',
+        'foo<span class="line-through">[bar]</span>baz',
+        'foo<span class="line-through">b[a]r</span>baz',
+        'foo<span class="underline-and-line-through">[bar]</span>baz',
+        'foo<span class="underline-and-line-through">b[a]r</span>baz',
+
+        // Tests for queryCommandIndeterm() and queryCommandState()
+        'fo[o<u>b]ar</u>baz',
+        'foo<u>ba[r</u>b]az',
+        'fo[o<u>bar</u>b]az',
+        'foo[<u>b]ar</u>baz',
+        'foo<u>ba[r</u>]baz',
+        'foo[<u>bar</u>]baz',
+        'foo<u>[bar]</u>baz',
+        'foo{<u>bar</u>}baz',
+        'fo[o<span style=text-decoration:underline>b]ar</span>baz',
+        '<ins>fo[o</ins><u>b]ar</u>',
+        '<u>fo[o</u><ins>b]ar</ins>',
+    ],
+    //@}
+    unlink: [
+    //@{
+        'foo[]bar',
+        '<p>[foo</p> <p>bar]</p>',
+        '<span>[foo</span> <span>bar]</span>',
+        '<p>[foo</p><p> <span>bar</span> </p><p>baz]</p>',
+        '<b>foo[]bar</b>',
+        '<i>foo[]bar</i>',
+        '<span>foo</span>{}<span>bar</span>',
+        '<span>foo[</span><span>]bar</span>',
+        'foo[bar]baz',
+        'foo[bar<b>baz]qoz</b>quz',
+        'foo[bar<i>baz]qoz</i>quz',
+        '{<p><p> <p>foo</p>}',
+
+        '<a href=http://www.google.com/>foo[bar]baz</a>',
+        '<a href=http://www.google.com/>foo[barbaz</a>}',
+        '{<a href=http://www.google.com/>foobar]baz</a>',
+        '{<a href=http://www.google.com/>foobarbaz</a>}',
+        '<a href=http://www.google.com/>[foobarbaz]</a>',
+
+        'foo<a href=http://www.google.com/>b[]ar</a>baz',
+        'foo<a href=http://www.google.com/>[bar]</a>baz',
+        'foo[<a href=http://www.google.com/>bar</a>]baz',
+        'foo<a href=http://www.google.com/>[bar</a>baz]',
+        '[foo<a href=http://www.google.com/>bar]</a>baz',
+        '[foo<a href=http://www.google.com/>bar</a>baz]',
+
+        '<a id=foo href=http://www.google.com/>foobar[]baz</a>',
+        '<a id=foo href=http://www.google.com/>foo[bar]baz</a>',
+        '<a id=foo href=http://www.google.com/>[foobarbaz]</a>',
+        'foo<a id=foo href=http://www.google.com/>[bar]</a>baz',
+        'foo[<a id=foo href=http://www.google.com/>bar</a>]baz',
+        '[foo<a id=foo href=http://www.google.com/>bar</a>baz]',
+
+        '<a name=foo>foobar[]baz</a>',
+        '<a name=foo>foo[bar]baz</a>',
+        '<a name=foo>[foobarbaz]</a>',
+        'foo<a name=foo>[bar]</a>baz',
+        'foo[<a name=foo>bar</a>]baz',
+        '[foo<a name=foo>bar</a>baz]',
+    ],
+    //@}
+    copy: ['!foo[bar]baz'],
+    cut: ['!foo[bar]baz'],
+    defaultparagraphseparator: [
+    //@{
+        ['', 'foo[bar]baz'],
+        ['div', 'foo[bar]baz'],
+        ['p', 'foo[bar]baz'],
+        ['DIV', 'foo[bar]baz'],
+        ['P', 'foo[bar]baz'],
+        [' div ', 'foo[bar]baz'],
+        [' p ', 'foo[bar]baz'],
+        ['<div>', 'foo[bar]baz'],
+        ['<p>', 'foo[bar]baz'],
+        ['li', 'foo[bar]baz'],
+        ['blockquote', 'foo[bar]baz'],
+    ],
+    //@}
+    paste: ['!foo[bar]baz'],
+    selectall: ['foo[bar]baz'],
+    stylewithcss: [
+    //@{
+        ['true', 'foo[bar]baz'],
+        ['TRUE', 'foo[bar]baz'],
+        ['TrUe', 'foo[bar]baz'],
+        ['true ', 'foo[bar]baz'],
+        [' true', 'foo[bar]baz'],
+        ['truer', 'foo[bar]baz'],
+        [' true ', 'foo[bar]baz'],
+        [' TrUe', 'foo[bar]baz'],
+        ['', 'foo[bar]baz'],
+        [' ', 'foo[bar]baz'],
+        ['false', 'foo[bar]baz'],
+        ['FALSE', 'foo[bar]baz'],
+        ['FaLsE', 'foo[bar]baz'],
+        [' false', 'foo[bar]baz'],
+        ['false ', 'foo[bar]baz'],
+        ['falser', 'foo[bar]baz'],
+        ['falsé', 'foo[bar]baz'],
+    ],
+    //@}
+    usecss: [
+    //@{
+        ['true', 'foo[bar]baz'],
+        ['TRUE', 'foo[bar]baz'],
+        ['TrUe', 'foo[bar]baz'],
+        ['true ', 'foo[bar]baz'],
+        [' true', 'foo[bar]baz'],
+        ['truer', 'foo[bar]baz'],
+        [' true ', 'foo[bar]baz'],
+        [' TrUe', 'foo[bar]baz'],
+        ['', 'foo[bar]baz'],
+        [' ', 'foo[bar]baz'],
+        ['false', 'foo[bar]baz'],
+        ['FALSE', 'foo[bar]baz'],
+        ['FaLsE', 'foo[bar]baz'],
+        [' false', 'foo[bar]baz'],
+        ['false ', 'foo[bar]baz'],
+        ['falser', 'foo[bar]baz'],
+        ['falsé', 'foo[bar]baz'],
+    ],
+    //@}
+    quasit: ['foo[bar]baz'],
+    multitest: [
+    //@{
+        // Insertion-affecting state.  Test that insertText works right, and
+        // test that various block commands preserve (or don't preserve) the
+        // state.
+        ['foo[]bar', 'bold', 'inserttext'],
+        ['foo[]bar', 'bold', 'delete'],
+        ['foo[]bar', 'bold', 'delete', 'inserttext'],
+        ['foo[]bar', 'bold', 'formatblock'],
+        ['foo[]bar', 'bold', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'bold', 'forwarddelete'],
+        ['foo[]bar', 'bold', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'bold', 'indent'],
+        ['foo[]bar', 'bold', 'indent', 'inserttext'],
+        ['foo[]bar', 'bold', 'inserthorizontalrule'],
+        ['foo[]bar', 'bold', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'bold', 'inserthtml'],
+        ['foo[]bar', 'bold', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'bold', 'insertimage'],
+        ['foo[]bar', 'bold', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'bold', 'insertlinebreak'],
+        ['foo[]bar', 'bold', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'bold', 'insertorderedlist'],
+        ['foo[]bar', 'bold', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'bold', 'insertparagraph'],
+        ['foo[]bar', 'bold', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'bold', 'insertunorderedlist'],
+        ['foo[]bar', 'bold', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'bold', 'justifycenter'],
+        ['foo[]bar', 'bold', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'bold', 'justifyfull'],
+        ['foo[]bar', 'bold', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'bold', 'justifyleft'],
+        ['foo[]bar', 'bold', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'bold', 'justifyright'],
+        ['foo[]bar', 'bold', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'bold', 'outdent'],
+        ['foo[]bar', 'bold', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'italic', 'inserttext'],
+        ['foo[]bar', 'italic', 'delete'],
+        ['foo[]bar', 'italic', 'delete', 'inserttext'],
+        ['foo[]bar', 'italic', 'formatblock'],
+        ['foo[]bar', 'italic', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'italic', 'forwarddelete'],
+        ['foo[]bar', 'italic', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'italic', 'indent'],
+        ['foo[]bar', 'italic', 'indent', 'inserttext'],
+        ['foo[]bar', 'italic', 'inserthorizontalrule'],
+        ['foo[]bar', 'italic', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'italic', 'inserthtml'],
+        ['foo[]bar', 'italic', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'italic', 'insertimage'],
+        ['foo[]bar', 'italic', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'italic', 'insertlinebreak'],
+        ['foo[]bar', 'italic', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'italic', 'insertorderedlist'],
+        ['foo[]bar', 'italic', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'italic', 'insertparagraph'],
+        ['foo[]bar', 'italic', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'italic', 'insertunorderedlist'],
+        ['foo[]bar', 'italic', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'italic', 'justifycenter'],
+        ['foo[]bar', 'italic', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'italic', 'justifyfull'],
+        ['foo[]bar', 'italic', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'italic', 'justifyleft'],
+        ['foo[]bar', 'italic', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'italic', 'justifyright'],
+        ['foo[]bar', 'italic', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'italic', 'outdent'],
+        ['foo[]bar', 'italic', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'strikethrough', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'delete'],
+        ['foo[]bar', 'strikethrough', 'delete', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'formatblock'],
+        ['foo[]bar', 'strikethrough', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'forwarddelete'],
+        ['foo[]bar', 'strikethrough', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'indent'],
+        ['foo[]bar', 'strikethrough', 'indent', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'inserthorizontalrule'],
+        ['foo[]bar', 'strikethrough', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'inserthtml'],
+        ['foo[]bar', 'strikethrough', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'insertimage'],
+        ['foo[]bar', 'strikethrough', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'insertlinebreak'],
+        ['foo[]bar', 'strikethrough', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'insertorderedlist'],
+        ['foo[]bar', 'strikethrough', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'insertparagraph'],
+        ['foo[]bar', 'strikethrough', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'insertunorderedlist'],
+        ['foo[]bar', 'strikethrough', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'justifycenter'],
+        ['foo[]bar', 'strikethrough', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'justifyfull'],
+        ['foo[]bar', 'strikethrough', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'justifyleft'],
+        ['foo[]bar', 'strikethrough', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'justifyright'],
+        ['foo[]bar', 'strikethrough', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'strikethrough', 'outdent'],
+        ['foo[]bar', 'strikethrough', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'subscript', 'inserttext'],
+        ['foo[]bar', 'subscript', 'delete'],
+        ['foo[]bar', 'subscript', 'delete', 'inserttext'],
+        ['foo[]bar', 'subscript', 'formatblock'],
+        ['foo[]bar', 'subscript', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'subscript', 'forwarddelete'],
+        ['foo[]bar', 'subscript', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'subscript', 'indent'],
+        ['foo[]bar', 'subscript', 'indent', 'inserttext'],
+        ['foo[]bar', 'subscript', 'inserthorizontalrule'],
+        ['foo[]bar', 'subscript', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'subscript', 'inserthtml'],
+        ['foo[]bar', 'subscript', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'subscript', 'insertimage'],
+        ['foo[]bar', 'subscript', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'subscript', 'insertlinebreak'],
+        ['foo[]bar', 'subscript', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'subscript', 'insertorderedlist'],
+        ['foo[]bar', 'subscript', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'subscript', 'insertparagraph'],
+        ['foo[]bar', 'subscript', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'subscript', 'insertunorderedlist'],
+        ['foo[]bar', 'subscript', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'subscript', 'justifycenter'],
+        ['foo[]bar', 'subscript', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'subscript', 'justifyfull'],
+        ['foo[]bar', 'subscript', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'subscript', 'justifyleft'],
+        ['foo[]bar', 'subscript', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'subscript', 'justifyright'],
+        ['foo[]bar', 'subscript', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'subscript', 'outdent'],
+        ['foo[]bar', 'subscript', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'superscript', 'inserttext'],
+        ['foo[]bar', 'superscript', 'delete'],
+        ['foo[]bar', 'superscript', 'delete', 'inserttext'],
+        ['foo[]bar', 'superscript', 'formatblock'],
+        ['foo[]bar', 'superscript', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'superscript', 'forwarddelete'],
+        ['foo[]bar', 'superscript', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'superscript', 'indent'],
+        ['foo[]bar', 'superscript', 'indent', 'inserttext'],
+        ['foo[]bar', 'superscript', 'inserthorizontalrule'],
+        ['foo[]bar', 'superscript', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'superscript', 'inserthtml'],
+        ['foo[]bar', 'superscript', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'superscript', 'insertimage'],
+        ['foo[]bar', 'superscript', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'superscript', 'insertlinebreak'],
+        ['foo[]bar', 'superscript', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'superscript', 'insertorderedlist'],
+        ['foo[]bar', 'superscript', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'superscript', 'insertparagraph'],
+        ['foo[]bar', 'superscript', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'superscript', 'insertunorderedlist'],
+        ['foo[]bar', 'superscript', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'superscript', 'justifycenter'],
+        ['foo[]bar', 'superscript', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'superscript', 'justifyfull'],
+        ['foo[]bar', 'superscript', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'superscript', 'justifyleft'],
+        ['foo[]bar', 'superscript', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'superscript', 'justifyright'],
+        ['foo[]bar', 'superscript', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'superscript', 'outdent'],
+        ['foo[]bar', 'superscript', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'underline', 'inserttext'],
+        ['foo[]bar', 'underline', 'delete'],
+        ['foo[]bar', 'underline', 'delete', 'inserttext'],
+        ['foo[]bar', 'underline', 'formatblock'],
+        ['foo[]bar', 'underline', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'underline', 'forwarddelete'],
+        ['foo[]bar', 'underline', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'underline', 'indent'],
+        ['foo[]bar', 'underline', 'indent', 'inserttext'],
+        ['foo[]bar', 'underline', 'inserthorizontalrule'],
+        ['foo[]bar', 'underline', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'underline', 'inserthtml'],
+        ['foo[]bar', 'underline', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'underline', 'insertimage'],
+        ['foo[]bar', 'underline', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'underline', 'insertlinebreak'],
+        ['foo[]bar', 'underline', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'underline', 'insertorderedlist'],
+        ['foo[]bar', 'underline', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'underline', 'insertparagraph'],
+        ['foo[]bar', 'underline', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'underline', 'insertunorderedlist'],
+        ['foo[]bar', 'underline', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'underline', 'justifycenter'],
+        ['foo[]bar', 'underline', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'underline', 'justifyfull'],
+        ['foo[]bar', 'underline', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'underline', 'justifyleft'],
+        ['foo[]bar', 'underline', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'underline', 'justifyright'],
+        ['foo[]bar', 'underline', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'underline', 'outdent'],
+        ['foo[]bar', 'underline', 'outdent', 'inserttext'],
+
+        // Insertion-affecting value.  Test that insertText works right, and
+        // test that various block commands preserve (or don't preserve) the
+        // value.
+        ['foo[]bar', 'backcolor', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'delete'],
+        ['foo[]bar', 'backcolor', 'delete', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'formatblock'],
+        ['foo[]bar', 'backcolor', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'forwarddelete'],
+        ['foo[]bar', 'backcolor', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'indent'],
+        ['foo[]bar', 'backcolor', 'indent', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'inserthorizontalrule'],
+        ['foo[]bar', 'backcolor', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'inserthtml'],
+        ['foo[]bar', 'backcolor', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'insertimage'],
+        ['foo[]bar', 'backcolor', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'insertlinebreak'],
+        ['foo[]bar', 'backcolor', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'insertorderedlist'],
+        ['foo[]bar', 'backcolor', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'insertparagraph'],
+        ['foo[]bar', 'backcolor', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'insertunorderedlist'],
+        ['foo[]bar', 'backcolor', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'justifycenter'],
+        ['foo[]bar', 'backcolor', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'justifyfull'],
+        ['foo[]bar', 'backcolor', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'justifyleft'],
+        ['foo[]bar', 'backcolor', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'justifyright'],
+        ['foo[]bar', 'backcolor', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'backcolor', 'outdent'],
+        ['foo[]bar', 'backcolor', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'createlink', 'inserttext'],
+        ['foo[]bar', 'createlink', 'delete'],
+        ['foo[]bar', 'createlink', 'delete', 'inserttext'],
+        ['foo[]bar', 'createlink', 'formatblock'],
+        ['foo[]bar', 'createlink', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'createlink', 'forwarddelete'],
+        ['foo[]bar', 'createlink', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'createlink', 'indent'],
+        ['foo[]bar', 'createlink', 'indent', 'inserttext'],
+        ['foo[]bar', 'createlink', 'inserthorizontalrule'],
+        ['foo[]bar', 'createlink', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'createlink', 'inserthtml'],
+        ['foo[]bar', 'createlink', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'createlink', 'insertimage'],
+        ['foo[]bar', 'createlink', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'createlink', 'insertlinebreak'],
+        ['foo[]bar', 'createlink', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'createlink', 'insertorderedlist'],
+        ['foo[]bar', 'createlink', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'createlink', 'insertparagraph'],
+        ['foo[]bar', 'createlink', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'createlink', 'insertunorderedlist'],
+        ['foo[]bar', 'createlink', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'createlink', 'justifycenter'],
+        ['foo[]bar', 'createlink', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'createlink', 'justifyfull'],
+        ['foo[]bar', 'createlink', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'createlink', 'justifyleft'],
+        ['foo[]bar', 'createlink', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'createlink', 'justifyright'],
+        ['foo[]bar', 'createlink', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'createlink', 'outdent'],
+        ['foo[]bar', 'createlink', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'fontname', 'inserttext'],
+        ['foo[]bar', 'fontname', 'delete'],
+        ['foo[]bar', 'fontname', 'delete', 'inserttext'],
+        ['foo[]bar', 'fontname', 'formatblock'],
+        ['foo[]bar', 'fontname', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'fontname', 'forwarddelete'],
+        ['foo[]bar', 'fontname', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'fontname', 'indent'],
+        ['foo[]bar', 'fontname', 'indent', 'inserttext'],
+        ['foo[]bar', 'fontname', 'inserthorizontalrule'],
+        ['foo[]bar', 'fontname', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'fontname', 'inserthtml'],
+        ['foo[]bar', 'fontname', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'fontname', 'insertimage'],
+        ['foo[]bar', 'fontname', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'fontname', 'insertlinebreak'],
+        ['foo[]bar', 'fontname', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'fontname', 'insertorderedlist'],
+        ['foo[]bar', 'fontname', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'fontname', 'insertparagraph'],
+        ['foo[]bar', 'fontname', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'fontname', 'insertunorderedlist'],
+        ['foo[]bar', 'fontname', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'fontname', 'justifycenter'],
+        ['foo[]bar', 'fontname', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'fontname', 'justifyfull'],
+        ['foo[]bar', 'fontname', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'fontname', 'justifyleft'],
+        ['foo[]bar', 'fontname', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'fontname', 'justifyright'],
+        ['foo[]bar', 'fontname', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'fontname', 'outdent'],
+        ['foo[]bar', 'fontname', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'fontsize', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'delete'],
+        ['foo[]bar', 'fontsize', 'delete', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'formatblock'],
+        ['foo[]bar', 'fontsize', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'forwarddelete'],
+        ['foo[]bar', 'fontsize', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'indent'],
+        ['foo[]bar', 'fontsize', 'indent', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'inserthorizontalrule'],
+        ['foo[]bar', 'fontsize', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'inserthtml'],
+        ['foo[]bar', 'fontsize', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'insertimage'],
+        ['foo[]bar', 'fontsize', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'insertlinebreak'],
+        ['foo[]bar', 'fontsize', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'insertorderedlist'],
+        ['foo[]bar', 'fontsize', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'insertparagraph'],
+        ['foo[]bar', 'fontsize', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'insertunorderedlist'],
+        ['foo[]bar', 'fontsize', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'justifycenter'],
+        ['foo[]bar', 'fontsize', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'justifyfull'],
+        ['foo[]bar', 'fontsize', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'justifyleft'],
+        ['foo[]bar', 'fontsize', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'justifyright'],
+        ['foo[]bar', 'fontsize', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'fontsize', 'outdent'],
+        ['foo[]bar', 'fontsize', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'forecolor', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'delete'],
+        ['foo[]bar', 'forecolor', 'delete', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'formatblock'],
+        ['foo[]bar', 'forecolor', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'forwarddelete'],
+        ['foo[]bar', 'forecolor', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'indent'],
+        ['foo[]bar', 'forecolor', 'indent', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'inserthorizontalrule'],
+        ['foo[]bar', 'forecolor', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'inserthtml'],
+        ['foo[]bar', 'forecolor', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'insertimage'],
+        ['foo[]bar', 'forecolor', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'insertlinebreak'],
+        ['foo[]bar', 'forecolor', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'insertorderedlist'],
+        ['foo[]bar', 'forecolor', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'insertparagraph'],
+        ['foo[]bar', 'forecolor', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'insertunorderedlist'],
+        ['foo[]bar', 'forecolor', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'justifycenter'],
+        ['foo[]bar', 'forecolor', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'justifyfull'],
+        ['foo[]bar', 'forecolor', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'justifyleft'],
+        ['foo[]bar', 'forecolor', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'justifyright'],
+        ['foo[]bar', 'forecolor', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'forecolor', 'outdent'],
+        ['foo[]bar', 'forecolor', 'outdent', 'inserttext'],
+
+        ['foo[]bar', 'hilitecolor', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'delete'],
+        ['foo[]bar', 'hilitecolor', 'delete', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'formatblock'],
+        ['foo[]bar', 'hilitecolor', 'formatblock', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'forwarddelete'],
+        ['foo[]bar', 'hilitecolor', 'forwarddelete', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'indent'],
+        ['foo[]bar', 'hilitecolor', 'indent', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'inserthorizontalrule'],
+        ['foo[]bar', 'hilitecolor', 'inserthorizontalrule', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'inserthtml'],
+        ['foo[]bar', 'hilitecolor', 'inserthtml', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'insertimage'],
+        ['foo[]bar', 'hilitecolor', 'insertimage', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'insertlinebreak'],
+        ['foo[]bar', 'hilitecolor', 'insertlinebreak', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'insertorderedlist'],
+        ['foo[]bar', 'hilitecolor', 'insertorderedlist', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'insertparagraph'],
+        ['foo[]bar', 'hilitecolor', 'insertparagraph', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'insertunorderedlist'],
+        ['foo[]bar', 'hilitecolor', 'insertunorderedlist', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'justifycenter'],
+        ['foo[]bar', 'hilitecolor', 'justifycenter', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'justifyfull'],
+        ['foo[]bar', 'hilitecolor', 'justifyfull', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'justifyleft'],
+        ['foo[]bar', 'hilitecolor', 'justifyleft', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'justifyright'],
+        ['foo[]bar', 'hilitecolor', 'justifyright', 'inserttext'],
+        ['foo[]bar', 'hilitecolor', 'outdent'],
+        ['foo[]bar', 'hilitecolor', 'outdent', 'inserttext'],
+
+        // Test things that interfere with each other
+        ['foo[]bar', 'superscript', 'subscript', 'inserttext'],
+        ['foo[]bar', 'subscript', 'superscript', 'inserttext'],
+
+        ['foo[]bar', 'createlink', ['forecolor', '#0000FF'], 'inserttext'],
+        ['foo[]bar', ['forecolor', '#0000FF'], 'createlink', 'inserttext'],
+        ['foo[]bar', 'createlink', ['forecolor', 'blue'], 'inserttext'],
+        ['foo[]bar', ['forecolor', 'blue'], 'createlink', 'inserttext'],
+        ['foo[]bar', 'createlink', ['forecolor', 'brown'], 'inserttext'],
+        ['foo[]bar', ['forecolor', 'brown'], 'createlink', 'inserttext'],
+        ['foo[]bar', 'createlink', ['forecolor', 'black'], 'inserttext'],
+        ['foo[]bar', ['forecolor', 'black'], 'createlink', 'inserttext'],
+        ['foo[]bar', 'createlink', 'underline', 'inserttext'],
+        ['foo[]bar', 'underline', 'createlink', 'inserttext'],
+        ['foo[]bar', 'createlink', 'underline', 'underline', 'inserttext'],
+        ['foo[]bar', 'underline', 'underline', 'createlink', 'inserttext'],
+
+        ['foo[]bar', 'subscript', ['fontsize', '2'], 'inserttext'],
+        ['foo[]bar', ['fontsize', '2'], 'subscript', 'inserttext'],
+        ['foo[]bar', 'subscript', ['fontsize', '3'], 'inserttext'],
+        ['foo[]bar', ['fontsize', '3'], 'subscript', 'inserttext'],
+
+        ['foo[]bar', ['hilitecolor', 'aqua'], ['backcolor', 'tan'], 'inserttext'],
+        ['foo[]bar', ['backcolor', 'tan'], ['hilitecolor', 'aqua'], 'inserttext'],
+
+
+        // The following are all just inserttext tests that we took from there,
+        // but we first backspace the selected text instead of letting
+        // inserttext handle it.  This tests that deletion correctly sets
+        // overrides.
+        ['foo<b>[bar]</b>baz', 'delete', 'inserttext'],
+        ['foo<i>[bar]</i>baz', 'delete', 'inserttext'],
+        ['foo<s>[bar]</s>baz', 'delete', 'inserttext'],
+        ['foo<sub>[bar]</sub>baz', 'delete', 'inserttext'],
+        ['foo<sup>[bar]</sup>baz', 'delete', 'inserttext'],
+        ['foo<u>[bar]</u>baz', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com>[bar]</a>baz', 'delete', 'inserttext'],
+        ['foo<font face=sans-serif>[bar]</font>baz', 'delete', 'inserttext'],
+        ['foo<font size=4>[bar]</font>baz', 'delete', 'inserttext'],
+        ['foo<font color=#0000FF>[bar]</font>baz', 'delete', 'inserttext'],
+        ['foo<span style=background-color:#00FFFF>[bar]</span>baz', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><font color=blue>[bar]</font></a>baz', 'delete', 'inserttext'],
+        ['foo<font color=blue><a href=http://www.google.com>[bar]</a></font>baz', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><font color=brown>[bar]</font></a>baz', 'delete', 'inserttext'],
+        ['foo<font color=brown><a href=http://www.google.com>[bar]</a></font>baz', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><font color=black>[bar]</font></a>baz', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><u>[bar]</u></a>baz', 'delete', 'inserttext'],
+        ['foo<u><a href=http://www.google.com>[bar]</a></u>baz', 'delete', 'inserttext'],
+        ['foo<sub><font size=2>[bar]</font></sub>baz', 'delete', 'inserttext'],
+        ['foo<font size=2><sub>[bar]</sub></font>baz', 'delete', 'inserttext'],
+        ['foo<sub><font size=3>[bar]</font></sub>baz', 'delete', 'inserttext'],
+        ['foo<font size=3><sub>[bar]</sub></font>baz', 'delete', 'inserttext'],
+
+        // Now repeat but with different selections.
+        ['[foo<b>bar]</b>baz', 'delete', 'inserttext'],
+        ['[foo<i>bar]</i>baz', 'delete', 'inserttext'],
+        ['[foo<s>bar]</s>baz', 'delete', 'inserttext'],
+        ['[foo<sub>bar]</sub>baz', 'delete', 'inserttext'],
+        ['[foo<sup>bar]</sup>baz', 'delete', 'inserttext'],
+        ['[foo<u>bar]</u>baz', 'delete', 'inserttext'],
+        ['[foo<a href=http://www.google.com>bar]</a>baz', 'delete', 'inserttext'],
+        ['[foo<font face=sans-serif>bar]</font>baz', 'delete', 'inserttext'],
+        ['[foo<font size=4>bar]</font>baz', 'delete', 'inserttext'],
+        ['[foo<font color=#0000FF>bar]</font>baz', 'delete', 'inserttext'],
+        ['[foo<span style=background-color:#00FFFF>bar]</span>baz', 'delete', 'inserttext'],
+        ['[foo<a href=http://www.google.com><font color=blue>bar]</font></a>baz', 'delete', 'inserttext'],
+        ['[foo<font color=blue><a href=http://www.google.com>bar]</a></font>baz', 'delete', 'inserttext'],
+        ['[foo<a href=http://www.google.com><font color=brown>bar]</font></a>baz', 'delete', 'inserttext'],
+        ['[foo<font color=brown><a href=http://www.google.com>bar]</a></font>baz', 'delete', 'inserttext'],
+        ['[foo<a href=http://www.google.com><font color=black>bar]</font></a>baz', 'delete', 'inserttext'],
+        ['[foo<a href=http://www.google.com><u>bar]</u></a>baz', 'delete', 'inserttext'],
+        ['[foo<u><a href=http://www.google.com>bar]</a></u>baz', 'delete', 'inserttext'],
+        ['[foo<sub><font size=2>bar]</font></sub>baz', 'delete', 'inserttext'],
+        ['[foo<font size=2><sub>bar]</sub></font>baz', 'delete', 'inserttext'],
+        ['[foo<sub><font size=3>bar]</font></sub>baz', 'delete', 'inserttext'],
+        ['[foo<font size=3><sub>bar]</sub></font>baz', 'delete', 'inserttext'],
+
+        ['foo<b>[bar</b>baz]', 'delete', 'inserttext'],
+        ['foo<i>[bar</i>baz]', 'delete', 'inserttext'],
+        ['foo<s>[bar</s>baz]', 'delete', 'inserttext'],
+        ['foo<sub>[bar</sub>baz]', 'delete', 'inserttext'],
+        ['foo<sup>[bar</sup>baz]', 'delete', 'inserttext'],
+        ['foo<u>[bar</u>baz]', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com>[bar</a>baz]', 'delete', 'inserttext'],
+        ['foo<font face=sans-serif>[bar</font>baz]', 'delete', 'inserttext'],
+        ['foo<font size=4>[bar</font>baz]', 'delete', 'inserttext'],
+        ['foo<font color=#0000FF>[bar</font>baz]', 'delete', 'inserttext'],
+        ['foo<span style=background-color:#00FFFF>[bar</span>baz]', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><font color=blue>[bar</font></a>baz]', 'delete', 'inserttext'],
+        ['foo<font color=blue><a href=http://www.google.com>[bar</a></font>baz]', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><font color=brown>[bar</font></a>baz]', 'delete', 'inserttext'],
+        ['foo<font color=brown><a href=http://www.google.com>[bar</a></font>baz]', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><font color=black>[bar</font></a>baz]', 'delete', 'inserttext'],
+        ['foo<a href=http://www.google.com><u>[bar</u></a>baz]', 'delete', 'inserttext'],
+        ['foo<u><a href=http://www.google.com>[bar</a></u>baz]', 'delete', 'inserttext'],
+        ['foo<sub><font size=2>[bar</font></sub>baz]', 'delete', 'inserttext'],
+        ['foo<font size=2><sub>[bar</sub></font>baz]', 'delete', 'inserttext'],
+        ['foo<sub><font size=3>[bar</font></sub>baz]', 'delete', 'inserttext'],
+        ['foo<font size=3><sub>[bar</sub></font>baz]', 'delete', 'inserttext'],
+
+        // https://bugs.webkit.org/show_bug.cgi?id=19702
+        ['<blockquote><font color=blue>[foo]</font></blockquote>', 'delete', 'inserttext'],
+    ],
+    //@}
+};
+tests.backcolor = tests.hilitecolor;
+tests.insertlinebreak = tests.insertparagraph;
+
+// Tests that start with "!" are believed to have bogus results and should be
+// skipped until the relevant bugs are fixed.
+var badTests = {};
+(function(){
+    for (var command in tests) {
+        badTests[command] = [];
+        for (var i = 0; i < tests[command].length; i++) {
+            var test = tests[command][i];
+            if (typeof test == "string" && test[0] == "!") {
+                test = test.slice(1);
+                tests[command][i] = test;
+                badTests[command].push(test);
+            }
+            if (typeof test == "object" && test[0][0] == "!") {
+                test = [test[0].slice(1)].concat(test.slice(1));
+                tests[command][i] = test;
+                badTests[command].push(test);
+            }
+        }
+    }
+})();
+
+var defaultValues = {
+//@{
+    backcolor: "#00FFFF",
+    createlink: "http://www.google.com/",
+    fontname: "sans-serif",
+    fontsize: "4",
+    forecolor: "#0000FF",
+    formatblock: "<div>",
+    hilitecolor: "#00FFFF",
+    inserthorizontalrule: "",
+    inserthtml: "ab<b>c</b>d",
+    insertimage: "/img/lion.svg",
+    inserttext: "a",
+    defaultparagraphseparator: "div",
+    stylewithcss: "true",
+    usecss: "true",
+};
+//@}
+
+var notes = {
+//@{
+    fontname: 'Note that the body\'s font-family is "serif".',
+};
+//@}
+
+var doubleTestingCommands = [
+//@{
+    "backcolor",
+    "bold",
+    "fontname",
+    "fontsize",
+    "forecolor",
+    "italic",
+    "justifycenter",
+    "justifyfull",
+    "justifyleft",
+    "justifyright",
+    "strikethrough",
+    "stylewithcss",
+    "subscript",
+    "superscript",
+    "underline",
+    "usecss",
+];
+//@}
+
+function prettyPrint(value) {
+//@{
+    // Partly stolen from testharness.js
+    if (typeof value != "string") {
+        return String(value);
+    }
+
+    value = value.replace(/\\/g, "\\\\")
+        .replace(/"/g, '\\"');
+
+    for (var i = 0; i < 32; i++) {
+        var replace = "\\";
+        switch (i) {
+        case 0: replace += "0"; break;
+        case 1: replace += "x01"; break;
+        case 2: replace += "x02"; break;
+        case 3: replace += "x03"; break;
+        case 4: replace += "x04"; break;
+        case 5: replace += "x05"; break;
+        case 6: replace += "x06"; break;
+        case 7: replace += "x07"; break;
+        case 8: replace += "b"; break;
+        case 9: replace += "t"; break;
+        case 10: replace += "n"; break;
+        case 11: replace += "v"; break;
+        case 12: replace += "f"; break;
+        case 13: replace += "r"; break;
+        case 14: replace += "x0e"; break;
+        case 15: replace += "x0f"; break;
+        case 16: replace += "x10"; break;
+        case 17: replace += "x11"; break;
+        case 18: replace += "x12"; break;
+        case 19: replace += "x13"; break;
+        case 20: replace += "x14"; break;
+        case 21: replace += "x15"; break;
+        case 22: replace += "x16"; break;
+        case 23: replace += "x17"; break;
+        case 24: replace += "x18"; break;
+        case 25: replace += "x19"; break;
+        case 26: replace += "x1a"; break;
+        case 27: replace += "x1b"; break;
+        case 28: replace += "x1c"; break;
+        case 29: replace += "x1d"; break;
+        case 30: replace += "x1e"; break;
+        case 31: replace += "x1f"; break;
+        }
+        value = value.replace(new RegExp(String.fromCharCode(i), "g"), replace);
+    }
+    return '"' + value + '"';
+}
+//@}
+
+function doSetup(selector, idx) {
+//@{
+    var table = document.querySelectorAll(selector)[idx];
+
+    var tr = document.createElement("tr");
+    table.firstChild.appendChild(tr);
+    tr.className = (tr.className + " active").trim();
+
+    return tr;
+}
+//@}
+
+function queryOutputHelper(beforeIndeterm, beforeState, beforeValue,
+                           afterIndeterm, afterState, afterValue,
+                           command, value) {
+//@{
+    var frag = document.createDocumentFragment();
+    var beforeDiv = document.createElement("div");
+    var afterDiv = document.createElement("div");
+    frag.appendChild(beforeDiv);
+    frag.appendChild(afterDiv);
+    beforeDiv.className = afterDiv.className = "extra-results";
+    beforeDiv.textContent = "Before: ";
+    afterDiv.textContent = "After: ";
+
+    beforeDiv.appendChild(document.createElement("span"));
+    afterDiv.appendChild(document.createElement("span"));
+    if ("indeterm" in commands[command]) {
+        // We only know it has to be either true or false.
+        if (beforeIndeterm !== true && beforeIndeterm !== false) {
+            beforeDiv.lastChild.className = "bad-result";
+        }
+    } else {
+        // It always has to be false.
+        beforeDiv.lastChild.className = beforeIndeterm === false
+            ? "good-result"
+            : "bad-result";
+    }
+    // After running the command, indeterminate must always be false, except if
+    // it's an exception, or if it's insert*list and the state was true to
+    // begin with.  And we can't help strikethrough/underline.
+    if ((/^insert(un)?orderedlist$/.test(command) && beforeState)
+    || command == "strikethrough"
+    || command == "underline") {
+        if (afterIndeterm !== true && afterIndeterm !== false) {
+            afterDiv.lastChild.className = "bad-result";
+        }
+    } else {
+        afterDiv.lastChild.className =
+            afterIndeterm === false
+                ? "good-result"
+                : "bad-result";
+    }
+    beforeDiv.lastChild.textContent = "indeterm " + prettyPrint(beforeIndeterm);
+    afterDiv.lastChild.textContent = "indeterm " + prettyPrint(afterIndeterm);
+
+    beforeDiv.appendChild(document.createTextNode(", "));
+    afterDiv.appendChild(document.createTextNode(", "));
+
+    beforeDiv.appendChild(document.createElement("span"));
+    afterDiv.appendChild(document.createElement("span"));
+    if (/^insert(un)?orderedlist$/.test(command)) {
+        // If the before state is true, the after state could be either true or
+        // false.  But if the before state is false, the after state has to be
+        // true.
+        if (beforeState !== true && beforeState !== false) {
+            beforeDiv.lastChild.className = "bad-result";
+        }
+        if (!beforeState) {
+            afterDiv.lastChild.className = afterState === true
+                ? "good-result"
+                : "bad-result";
+        } else if (afterState !== true && afterState !== false) {
+            afterDiv.lastChild.className = "bad-result";
+        }
+    } else if (/^justify(center|full|left|right)$/.test(command)) {
+        // We don't know about the before state, but the after state is always
+        // supposed to be true.
+        if (beforeState !== true && beforeState !== false) {
+            beforeDiv.lastChild.className = "bad-result";
+        }
+        afterDiv.lastChild.className = afterState === true
+            ? "good-result"
+            : "bad-result";
+    } else if (command == "strikethrough" || command == "underline") {
+        // The only thing we can say is the before/after states need to be
+        // either true or false.
+        if (beforeState !== true && beforeState !== false) {
+            beforeDiv.lastChild.className = "bad-result";
+        }
+        if (afterState !== true && afterState !== false) {
+            afterDiv.lastChild.className = "bad-result";
+        }
+    } else {
+        // The general rule is it must flip the state, unless there's no state
+        // defined, in which case it should always be false.
+        beforeDiv.lastChild.className =
+        afterDiv.lastChild.className =
+            ("state" in commands[command] && typeof beforeState == "boolean" && typeof afterState == "boolean" && beforeState === !afterState)
+            || (!("state" in commands[command]) && beforeState === false && afterState === false)
+                ? "good-result"
+                : "bad-result";
+    }
+    beforeDiv.lastChild.textContent = "state " + prettyPrint(beforeState);
+    afterDiv.lastChild.textContent = "state " + prettyPrint(afterState);
+
+    beforeDiv.appendChild(document.createTextNode(", "));
+    afterDiv.appendChild(document.createTextNode(", "));
+
+    beforeDiv.appendChild(document.createElement("span"));
+    afterDiv.appendChild(document.createElement("span"));
+
+    // Direct equality comparison doesn't make sense in a bunch of cases.
+    if (command == "backcolor" || command == "forecolor" || command == "hilitecolor") {
+        if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
+            value = "#" + value;
+        }
+    } else if (command == "fontsize") {
+        value = normalizeFontSize(value);
+        if (value !== null) {
+            value = String(cssSizeToLegacy(value));
+        }
+    } else if (command == "formatblock") {
+        value = value.replace(/^<(.*)>$/, "$1").toLowerCase();
+    } else if (command == "defaultparagraphseparator") {
+        value = value.toLowerCase();
+        if (value != "p" && value != "div") {
+            value = "";
+        }
+    }
+
+    if (((command == "backcolor" || command == "forecolor" || command == "hilitecolor") && value.toLowerCase() == "currentcolor")
+    || (command == "fontsize" && value === null)
+    || (command == "formatblock" && formattableBlockNames.indexOf(value.replace(/^<(.*)>$/, "$1").trim()) == -1)
+    || (command == "defaultparagraphseparator" && value == "")) {
+        afterDiv.lastChild.className = beforeValue === afterValue
+            ? "good-result"
+            : "bad-result";
+    } else if (/^justify(center|full|left|right)$/.test(command)) {
+        // We know there are only four correct values beforehand, and afterward
+        // the value has to be the one we set.
+        if (!/^(center|justify|left|right)$/.test(beforeValue)) {
+            beforeDiv.lastChild.className = "bad-result";
+        }
+        var expectedValue = command == "justifyfull"
+            ? "justify"
+            : command.replace("justify", "");
+        afterDiv.lastChild.className = afterValue === expectedValue
+            ? "good-result"
+            : "bad-result";
+    } else if (!("value" in commands[command])) {
+        // If it's not defined we want "".
+        beforeDiv.lastChild.className = beforeValue === ""
+            ? "good-result"
+            : "bad-result";
+        afterDiv.lastChild.className = afterValue === ""
+            ? "good-result"
+            : "bad-result";
+    } else {
+        // And in all other cases, the value afterwards has to be the one we
+        // set.
+        afterDiv.lastChild.className =
+            areEquivalentValues(command, afterValue, value)
+                ? "good-result"
+                : "bad-result";
+    }
+    beforeDiv.lastChild.textContent = "value " + prettyPrint(beforeValue);
+    afterDiv.lastChild.textContent = "value " + prettyPrint(afterValue);
+
+    return frag;
+}
+//@}
+
+function normalizeTest(command, test, styleWithCss) {
+//@{
+    // Our standard format for test processing is:
+    //   [input HTML,
+    //     [command1, value1, optional_name_mod],
+    //     [command2, value2, optional_name_mod], ...]
+    // Where `optional_name_mod` is an optionally-specified string used when
+    // generating test names (necessary to ensure uniqueness for command
+    // sequences that use the same command multiple times). This format is
+    // verbose, so we actually use three different formats in the tests and
+    // multiTests arrays:
+    //
+    // 1) Plain string giving the input HTML.  The command is implicit from the
+    // key of the tests array.  If the command takes values, the value is given
+    // by defaultValues, otherwise it's "".  Has to be converted to
+    // [input HTML, [command, value].
+    //
+    // 2) Two-element array [value, input HTML].  Has to be converted to
+    // [input HTML, [command, value]].
+    //
+    // 3) An element of multiTests.  This just has to have values filled in.
+    //
+    // Optionally, a styleWithCss argument can be passed, either true or false.
+    // If it is, we'll prepend a styleWithCss invocation.
+    if (command == "multitest") {
+        if (typeof test == "string") {
+            test = JSON.parse(test);
+        }
+        for (var i = 1; i < test.length; i++) {
+            if (typeof test[i] == "string"
+            && test[i] in defaultValues) {
+                test[i] = [test[i], defaultValues[test[i]]];
+            } else if (typeof test[i] == "string") {
+                test[i] = [test[i], ""];
+            }
+        }
+        return test;
+    }
+
+    if (typeof test == "string") {
+        if (command in defaultValues) {
+            test = [test, [command, defaultValues[command]]];
+        } else {
+            test = [test, [command, ""]];
+        }
+    } else if (test.length == 2) {
+        test = [test[1], [command, String(test[0])]];
+    }
+
+    if (styleWithCss !== undefined) {
+        test.splice(1, 0, ["stylewithcss", String(styleWithCss)]);
+    }
+
+    return test;
+}
+//@}
+
+function doInputCell(tr, test, command) {
+//@{
+    var testHtml = test[0];
+
+    var msg = null;
+    if (command in defaultValues) {
+        // Single command with a value, possibly with a styleWithCss stuck
+        // before.  We don't need to specify the command itself, since this
+        // presumably isn't in multiTests, so the command is already given by
+        // the section header.
+        msg = 'value: ' + prettyPrint(test[test.length - 1][1]);
+    } else if (command == "multitest") {
+        // Uses a different input format
+        msg = JSON.stringify(test);
+    }
+    var inputCell = document.createElement("td");
+    inputCell.innerHTML = "<div></div><div></div>";
+    inputCell.firstChild.innerHTML = testHtml;
+    inputCell.lastChild.textContent = inputCell.firstChild.innerHTML;
+    if (msg !== null) {
+        inputCell.lastChild.textContent += " (" + msg + ")";
+    }
+
+    tr.appendChild(inputCell);
+}
+//@}
+
+function doSpecCell(tr, test, command) {
+//@{
+    var specCell = document.createElement("td");
+    tr.appendChild(specCell);
+    try {
+        var points = setupCell(specCell, test[0]);
+        var range = document.createRange();
+        range.setStart(points[0], points[1]);
+        range.setEnd(points[2], points[3]);
+        // The points might be backwards
+        if (range.collapsed) {
+            range.setEnd(points[0], points[1]);
+        }
+        specCell.firstChild.contentEditable = "true";
+        specCell.firstChild.spellcheck = false;
+
+        if (command != "multitest") {
+            try { var beforeIndeterm = myQueryCommandIndeterm(command, range) }
+            catch(e) { beforeIndeterm = "Exception" }
+            try { var beforeState = myQueryCommandState(command, range) }
+            catch(e) { beforeState = "Exception" }
+            try { var beforeValue = myQueryCommandValue(command, range) }
+            catch(e) { beforeValue = "Exception" }
+        }
+
+        for (var i = 1; i < test.length; i++) {
+            myExecCommand(test[i][0], false, test[i][1], range);
+        }
+
+        if (command != "multitest") {
+            try { var afterIndeterm = myQueryCommandIndeterm(command, range) }
+            catch(e) { afterIndeterm = "Exception" }
+            try { var afterState = myQueryCommandState(command, range) }
+            catch(e) { afterState = "Exception" }
+            try { var afterValue = myQueryCommandValue(command, range) }
+            catch(e) { afterValue = "Exception" }
+        }
+
+        specCell.firstChild.contentEditable = "inherit";
+        specCell.firstChild.removeAttribute("spellcheck");
+        var compareDiv1 = specCell.firstChild.cloneNode(true);
+
+        // Now do various sanity checks, and throw if they're violated.  First
+        // just count children:
+        if (specCell.childNodes.length != 2) {
+            throw "The cell didn't have two children.  Did something spill outside the test div?";
+        }
+
+        // Now verify that the DOM serializes.
+        compareDiv1.normalize();
+        var compareDiv2 = compareDiv1.cloneNode(false);
+        compareDiv2.innerHTML = compareDiv1.innerHTML;
+        // Oddly, IE9 sometimes produces two nodes that return true for
+        // isEqualNode but have different innerHTML (omitting closing tags vs.
+        // not).
+        if (!compareDiv1.isEqualNode(compareDiv2)
+        && compareDiv1.innerHTML != compareDiv2.innerHTML) {
+            throw "DOM does not round-trip through serialization!  "
+                + compareDiv1.innerHTML + " vs. " + compareDiv2.innerHTML;
+        }
+        if (!compareDiv1.isEqualNode(compareDiv2)) {
+            throw "DOM does not round-trip through serialization (although innerHTML is the same)!  "
+                + compareDiv1.innerHTML;
+        }
+
+        // Check for attributes
+        if (specCell.firstChild.attributes.length) {
+            throw "Wrapper div has attributes!  " +
+                specCell.innerHTML.replace(/<div><\/div>$/, "");
+        }
+
+        // Final sanity check: make sure everything isAllowedChild() of its
+        // parent.
+        getDescendants(specCell.firstChild).forEach(function(descendant) {
+            if (!isAllowedChild(descendant, descendant.parentNode)) {
+                throw "Something here is not an allowed child of its parent: " + descendant;
+            }
+        });
+
+        addBrackets(range);
+
+        specCell.lastChild.textContent = specCell.firstChild.innerHTML;
+        if (command != "multitest") {
+            specCell.lastChild.appendChild(queryOutputHelper(
+                beforeIndeterm, beforeState, beforeValue,
+                afterIndeterm, afterState, afterValue,
+                command, test[test.length - 1][1]));
+            if (specCell.querySelector(".bad-result")) {
+                specCell.parentNode.className = "alert";
+            }
+        }
+    } catch (e) {
+        specCell.firstChild.contentEditable = "inherit";
+        specCell.firstChild.removeAttribute("spellcheck");
+        specCell.lastChild.textContent = "Exception: " + formatException(e);
+
+        specCell.parentNode.className = "alert";
+        specCell.lastChild.className = "alert";
+
+        // Don't bother comparing to localStorage, this is always wrong no
+        // matter what.
+        return;
+    }
+
+    if (command != "multitest") {
+        // Old storage format
+        var key = "execcommand-" + command
+            + "-" + (test.length == 2 || test[1][1] == "false" ? "0" : "1")
+            + "-" + tr.firstChild.lastChild.textContent;
+    } else {
+        var key = "execcommand-" + JSON.stringify(test);
+    }
+
+    // Use getItem() instead of direct property access to work around Firefox
+    // bug: https://bugzilla.mozilla.org/show_bug.cgi?id=532062
+    var oldValue = localStorage.getItem(key);
+    var newValue = specCell.lastChild.firstChild.textContent;
+
+    // Ignore differences between {} and [].
+    if (oldValue === null
+    || oldValue.replace("{}", "[]") !== newValue.replace("{}", "[]")) {
+        specCell.parentNode.className = "alert";
+        var alertDiv = document.createElement("div");
+        specCell.lastChild.appendChild(alertDiv);
+        alertDiv.className = "alert";
+        if (oldValue === null) {
+            alertDiv.textContent = "Newly added test result";
+        } else if (oldValue.replace(/[\[\]{}]/g, "") == newValue.replace(/[\[\]{}]/g, "")) {
+            alertDiv.textContent = "Last run produced a different selection: " + oldValue;
+        } else {
+            alertDiv.textContent = "Last run produced different markup: " + oldValue;
+        }
+
+        var button = document.createElement("button");
+        alertDiv.appendChild(button);
+        button.textContent = "Store new result";
+        button.className = "store-new-result";
+        button.onclick = (function(key, val, alertDiv) { return function() {
+            localStorage[key] = val;
+            // Make it easier to do mass updates, and also to jump to the next
+            // new result
+            var buttons = document.getElementsByClassName("store-new-result");
+            for (var i = 0; i < buttons.length; i++) {
+                if (isDescendant(buttons[i], alertDiv)
+                && i + 1 < buttons.length) {
+                    buttons[i + 1].focus();
+                    break;
+                }
+            }
+            var td = alertDiv;
+            while (td.tagName != "TD") {
+                td = td.parentNode;
+            }
+            alertDiv.parentNode.removeChild(alertDiv);
+            if (!td.querySelector(".alert")) {
+                td.parentNode.className = (" " + td.parentNode.className + " ")
+                    .replace(/ alert /g, "")
+                    .replace(/^ | $/g, "");
+            }
+        } })(key, newValue, alertDiv);
+    }
+}
+//@}
+
+function browserCellException(e, testDiv, browserCell) {
+//@{
+    if (testDiv) {
+        testDiv.contenteditable = "inherit";
+        testDiv.removeAttribute("spellcheck");
+    }
+    browserCell.lastChild.className = "alert";
+    browserCell.lastChild.textContent = "Exception: " + formatException(e);
+    if (testDiv && testDiv.parentNode != browserCell) {
+        browserCell.insertBefore(testDiv, browserCell.firstChild);
+    }
+}
+//@}
+
+function formatException(e) {
+//@{
+    if (typeof e == "object" && "stack" in e) {
+        return e + " (stack: " + e.stack + ")";
+    }
+    return String(e);
+}
+//@}
+
+function doSameCell(tr) {
+//@{
+    tr.className = (" " + tr.className + " ").replace(" active ", "").trim();
+    if (tr.className == "") {
+        tr.removeAttribute("class");
+    }
+
+    var sameCell = document.createElement("td");
+    if (!document.querySelector("#browser-checkbox").checked) {
+        sameCell.className = "maybe";
+        sameCell.textContent = "?";
+    } else {
+        var exception = false;
+        try {
+            // Ad hoc normalization to avoid basically spurious mismatches.  For
+            // now this includes ignoring where the selection goes.
+            var normalizedSpecCell = tr.childNodes[1].lastChild.firstChild.textContent
+                .replace(/[[\]{}]/g, "")
+                .replace(/ style="margin: 0 0 0 40px; border: none; padding: 0px;"/g, '')
+                .replace(/ style="margin-right: 0px;" dir="ltr"/g, '')
+                .replace(/ style="margin-left: 0px;" dir="rtl"/g, '')
+                .replace(/ style="margin-(left|right): 40px;"/g, '')
+                .replace(/: /g, ":")
+                .replace(/;? ?"/g, '"')
+                .replace(/<(\/?)strong/g, '<$1b')
+                .replace(/<(\/?)strike/g, '<$1s')
+                .replace(/<(\/?)em/g, '<$1i')
+                .replace(/#[0-9a-fA-F]{6}/g, function(match) { return match.toUpperCase(); });
+            var normalizedBrowserCell = tr.childNodes[2].lastChild.firstChild.textContent
+                .replace(/[[\]{}]/g, "")
+                .replace(/ style="margin: 0 0 0 40px; border: none; padding: 0px;"/g, '')
+                .replace(/ style="margin-right: 0px;" dir="ltr"/g, '')
+                .replace(/ style="margin-left: 0px;" dir="rtl"/g, '')
+                .replace(/ style="margin-(left|right): 40px;"/g, '')
+                .replace(/: /g, ":")
+                .replace(/;? ?"/g, '"')
+                .replace(/<(\/?)strong/g, '<$1b')
+                .replace(/<(\/?)strike/g, '<$1s')
+                .replace(/<(\/?)em/g, '<$1i')
+                .replace(/#[0-9a-fA-F]{6}/g, function(match) { return match.toUpperCase(); })
+                .replace(/ size="2" width="100%"/g, '');
+            if (navigator.userAgent.indexOf("MSIE") != -1) {
+                // IE produces <font style> instead of <span style>, so let's
+                // translate all <span>s to <font>s.
+                normalizedSpecCell = normalizedSpecCell
+                    .replace(/<(\/?)span/g, '<$1font');
+                normalizedBrowserCell = normalizedBrowserCell
+                    .replace(/<(\/?)span/g, '<$1font');
+            }
+        } catch (e) {
+            exception = true;
+        }
+        if (!exception && normalizedSpecCell == normalizedBrowserCell) {
+            sameCell.className = "yes";
+            sameCell.textContent = "\u2713";
+        } else {
+            sameCell.className = "no";
+            sameCell.textContent = "\u2717";
+        }
+    }
+    tr.appendChild(sameCell);
+
+    for (var i = 0; i <= 2; i++) {
+        // Insert <wbr> so IE doesn't stretch the screen.  This is considerably
+        // more complicated than it has to be, thanks to Firefox's lack of
+        // support for outerHTML.
+        var div = tr.childNodes[i].lastChild;
+        if (div.firstChild) {
+            var text = div.firstChild.textContent;
+            div.removeChild(div.firstChild);
+            div.insertBefore(document.createElement("div"), div.firstChild);
+            div.firstChild.innerHTML = text
+                .replace(/&/g, "&amp;")
+                .replace(/</g, "&lt;")
+                .replace(/>/g, "><wbr>")
+                .replace(/&lt;/g, "<wbr>&lt;");
+            while (div.firstChild.hasChildNodes()) {
+                div.insertBefore(div.firstChild.lastChild, div.firstChild.nextSibling);
+            }
+            div.removeChild(div.firstChild);
+        }
+
+        // Add position: absolute span to not affect vertical layout
+        getDescendants(tr.childNodes[i].firstChild)
+        .filter(function(node) {
+            return node.nodeType == Node.TEXT_NODE
+                && /^(\{\}?|\})$/.test(node.data);
+        }).forEach(function(node) {
+            var span = document.createElement("span");
+            span.style.position = "absolute";
+            span.textContent = node.data;
+            node.parentNode.insertBefore(span, node);
+            node.parentNode.removeChild(node);
+        });
+    }
+}
+//@}
+
+function doTearDown(command) {
+//@{
+    getSelection().removeAllRanges();
+}
+//@}
+
+function setupCell(cell, html) {
+//@{
+    cell.innerHTML = "<div></div><div></div>";
+
+    return setupDiv(cell.firstChild, html);
+}
+//@}
+
+function setupDiv(node, html) {
+//@{
+    // A variety of checks to avoid simple errors.  Not foolproof, of course.
+    var re = /\{|\[|data-start/g;
+    var markers = [];
+    var marker;
+    while (marker = re.exec(html)) {
+        markers.push(marker);
+    }
+    if (markers.length != 1) {
+        throw "Need exactly one start marker ([ or { or data-start), found " + markers.length;
+    }
+
+    var re = /\}|\]|data-end/g;
+    var markers = [];
+    var marker;
+    while (marker = re.exec(html)) {
+        markers.push(marker);
+    }
+    if (markers.length != 1) {
+        throw "Need exactly one end marker (] or } or data-end), found " + markers.length;
+    }
+
+    node.innerHTML = html;
+
+    var startNode, startOffset, endNode, endOffset;
+
+    // For braces that don't lie inside text nodes, we can't just set
+    // innerHTML, because that might disturb the DOM.  For instance, if the
+    // brace is right before a <tr>, it could get moved outside the table
+    // entirely, which messes everything up pretty badly.  So we instead
+    // allow using data attributes: data-start and data-end on the start and
+    // end nodes, with a numeric value indicating the offset.  This format
+    // doesn't allow the parent div to be a start or end node, but in that case
+    // you can always use the curly braces.
+    if (node.querySelector("[data-start]")) {
+        startNode = node.querySelector("[data-start]");
+        startOffset = startNode.getAttribute("data-start");
+        startNode.removeAttribute("data-start");
+    }
+    if (node.querySelector("[data-end]")) {
+        endNode = node.querySelector("[data-end]");
+        endOffset = endNode.getAttribute("data-end");
+        endNode.removeAttribute("data-end");
+    }
+
+    var cur = node;
+    while (true) {
+        if (!cur || (cur != node && !(cur.compareDocumentPosition(node) & Node.DOCUMENT_POSITION_CONTAINS))) {
+            break;
+        }
+
+        if (cur.nodeType != Node.TEXT_NODE) {
+            cur = nextNode(cur);
+            continue;
+        }
+
+        var data = cur.data.replace(/\]/g, "");
+        var startIdx = data.indexOf("[");
+
+        data = cur.data.replace(/\[/g, "");
+        var endIdx = data.indexOf("]");
+
+        cur.data = cur.data.replace(/[\[\]]/g, "");
+
+        if (startIdx != -1) {
+            startNode = cur;
+            startOffset = startIdx;
+        }
+
+        if (endIdx != -1) {
+            endNode = cur;
+            endOffset = endIdx;
+        }
+
+        // These are only legal as the first or last
+        data = cur.data.replace(/\}/g, "");
+        var elStartIdx = data.indexOf("{");
+
+        data = cur.data.replace(/\{/g, "");
+        var elEndIdx = data.indexOf("}");
+
+        if (elStartIdx == 0) {
+            startNode = cur.parentNode;
+            startOffset = getNodeIndex(cur);
+        } else if (elStartIdx != -1) {
+            startNode = cur.parentNode;
+            startOffset = getNodeIndex(cur) + 1;
+        }
+        if (elEndIdx == 0) {
+            endNode = cur.parentNode;
+            endOffset = getNodeIndex(cur);
+        } else if (elEndIdx != -1) {
+            endNode = cur.parentNode;
+            endOffset = getNodeIndex(cur) + 1;
+        }
+
+        cur.data = cur.data.replace(/[{}]/g, "");
+        if (!cur.data.length) {
+            if (cur == startNode || cur == endNode) {
+                throw "You put a square bracket where there was no text node . . .";
+            }
+            var oldCur = cur;
+            cur = nextNode(cur);
+            oldCur.parentNode.removeChild(oldCur);
+        } else {
+            cur = nextNode(cur);
+        }
+    }
+
+    return [startNode, startOffset, endNode, endOffset];
+}
+//@}
+
+function setSelection(startNode, startOffset, endNode, endOffset) {
+//@{
+    if (navigator.userAgent.indexOf("Opera") != -1) {
+        // Yes, browser sniffing is evil, but I can't be bothered to debug
+        // Opera.
+        var range = document.createRange();
+        range.setStart(startNode, startOffset);
+        range.setEnd(endNode, endOffset);
+        if (range.collapsed) {
+            range.setEnd(startNode, startOffset);
+        }
+        getSelection().removeAllRanges();
+        getSelection().addRange(range);
+    } else if ("extend" in getSelection()) {
+        // WebKit behaves unreasonably for collapse(), so do that manually.
+        /*
+        var range = document.createRange();
+        range.setStart(startNode, startOffset);
+        getSelection().removeAllRanges();
+        getSelection().addRange(range);
+        */
+        getSelection().collapse(startNode, startOffset);
+        getSelection().extend(endNode, endOffset);
+    } else {
+        // IE9.  Selections have no direction, so we just make the selection
+        // always forwards.
+        var range;
+        if (getSelection().rangeCount) {
+            range = getSelection().getRangeAt(0);
+        } else {
+            range = document.createRange();
+        }
+        range.setStart(startNode, startOffset);
+        range.setEnd(endNode, endOffset);
+        if (range.collapsed) {
+            // Phooey, we got them backwards.
+            range.setEnd(startNode, startOffset);
+        }
+        if (!getSelection().rangeCount) {
+            getSelection().addRange(range);
+        }
+    }
+}
+//@}
+
+/**
+ * Add brackets at the start and end points of the given range, so that they're
+ * visible.
+ */
+function addBrackets(range) {
+//@{
+    // Handle the collapsed case specially, to avoid confusingly getting the
+    // markers backwards in some cases
+    if (range.startContainer.nodeType == Node.TEXT_NODE
+    || range.startContainer.nodeType == Node.COMMENT_NODE) {
+        if (range.collapsed) {
+            range.startContainer.insertData(range.startOffset, "[]");
+        } else {
+            range.startContainer.insertData(range.startOffset, "[");
+        }
+    } else {
+        var marker = range.collapsed ? "{}" : "{";
+        if (range.startOffset != range.startContainer.childNodes.length
+        && range.startContainer.childNodes[range.startOffset].nodeType == Node.TEXT_NODE) {
+            range.startContainer.childNodes[range.startOffset].insertData(0, marker);
+        } else if (range.startOffset != 0
+        && range.startContainer.childNodes[range.startOffset - 1].nodeType == Node.TEXT_NODE) {
+            range.startContainer.childNodes[range.startOffset - 1].appendData(marker);
+        } else {
+            // Seems to serialize as I'd want even for tables . . . IE doesn't
+            // allow undefined to be passed as the second argument (it throws
+            // an exception), so we have to explicitly check the number of
+            // children and pass null.
+            range.startContainer.insertBefore(document.createTextNode(marker),
+                range.startContainer.childNodes.length == range.startOffset
+                ? null
+                : range.startContainer.childNodes[range.startOffset]);
+        }
+    }
+    if (range.collapsed) {
+        return;
+    }
+    if (range.endContainer.nodeType == Node.TEXT_NODE
+    || range.endContainer.nodeType == Node.COMMENT_NODE) {
+        range.endContainer.insertData(range.endOffset, "]");
+    } else {
+        if (range.endOffset != range.endContainer.childNodes.length
+        && range.endContainer.childNodes[range.endOffset].nodeType == Node.TEXT_NODE) {
+            range.endContainer.childNodes[range.endOffset].insertData(0, "}");
+        } else if (range.endOffset != 0
+        && range.endContainer.childNodes[range.endOffset - 1].nodeType == Node.TEXT_NODE) {
+            range.endContainer.childNodes[range.endOffset - 1].appendData("}");
+        } else {
+            range.endContainer.insertBefore(document.createTextNode("}"),
+                range.endContainer.childNodes.length == range.endOffset
+                ? null
+                : range.endContainer.childNodes[range.endOffset]);
+        }
+    }
+}
+//@}
+
+function normalizeSerializedStyle(wrapper) {
+//@{
+    // Inline CSS attribute serialization has terrible interop, so we fix
+    // things up a bit to avoid spurious mismatches.  This needs to be removed
+    // once CSSOM defines this stuff properly, but for now there's just no
+    // standard for any of it.  This only normalizes descendants of wrapper,
+    // not wrapper itself.
+    [].forEach.call(wrapper.querySelectorAll("[style]"), function(node) {
+        if (node.style.color != "") {
+            var newColor = normalizeColor(node.style.color);
+            node.style.color = "";
+            node.style.color = newColor;
+        }
+        if (node.style.backgroundColor != "") {
+            var newBackgroundColor = normalizeColor(node.style.backgroundColor);
+            node.style.backgroundColor = "";
+            node.style.backgroundColor = newBackgroundColor;
+        }
+        node.setAttribute("style", node.getAttribute("style")
+            // Random spacing differences
+            .replace(/; ?$/, "")
+            .replace(/: /g, ":")
+            // Gecko likes "transparent"
+            .replace(/transparent/g, "rgba(0, 0, 0, 0)")
+            // WebKit likes to look overly precise
+            .replace(/, 0.496094\)/g, ", 0.5)")
+            // Gecko converts anything with full alpha to "transparent" which
+            // then becomes "rgba(0, 0, 0, 0)", so we have to make other
+            // browsers match
+            .replace(/rgba\([0-9]+, [0-9]+, [0-9]+, 0\)/g, "rgba(0, 0, 0, 0)")
+        );
+    });
+}
+//@}
+
+/**
+ * Input is in the following format:
+ *   [input HTML,
+ *    array of commands,
+ *    expected output HTML,
+ *    array of expected execCommand() return values,
+ *    object of expected indeterm/state/value].
+ * The array of commands is [[command, value, optionalDesc], [command, value,
+ * optionalDesc], ...].  optionalDesc is appended to the description of the
+ * test in the generated test name.
+ *
+ * The
+ * array of expected execCommand() return values is [true|false, true|false,
+ * ...], where the indices match those in the array of commands.  The
+ * indeterm/state/value object is of the form
+ *   {command: [expected indeterm before, expected state before,
+ *     expected value before, expected indeterm after,
+ *     expected state after, expected value after],
+ *   command: ... }
+ * null for any of the last six entries means an INVALID_ACCESS_ERR must be
+ * raised.
+ */
+function runConformanceTest(browserTest) {
+//@{
+    document.getElementById("test-container").innerHTML = "<div contenteditable></div><p>test";
+    var testName = JSON.stringify(browserTest[1]) + " " + format_value(browserTest[0]);
+    var testDiv = document.querySelector("div[contenteditable]");
+    var originalRootElement, newRootElement;
+    var exception = null;
+    var expectedExecCommandReturnValues = browserTest[3];
+    var expectedQueryResults = browserTest[4];
+    var actualQueryResults = {};
+    var actualQueryExceptions = {};
+    var subtestName;
+
+    try {
+        var points = setupDiv(testDiv, browserTest[0]);
+
+        var range = document.createRange();
+        range.setStart(points[0], points[1]);
+        range.setEnd(points[2], points[3]);
+        // The points might be backwards
+        if (range.collapsed) {
+            range.setEnd(points[0], points[1]);
+        }
+        getSelection().removeAllRanges();
+        getSelection().addRange(range);
+
+        var originalRootElement = document.documentElement.cloneNode(true);
+        originalRootElement.querySelector("[contenteditable]").parentNode
+            .removeChild(originalRootElement.querySelector("[contenteditable]"));
+        originalRootElement.querySelector("#log").parentNode
+            .removeChild(originalRootElement.querySelector("#log"));
+
+        for (var command in expectedQueryResults) {
+            var results = [];
+            var exceptions = {};
+            try { results[0] = document.queryCommandIndeterm(command) }
+            catch(e) { exceptions[0] = e }
+            try { results[1] = document.queryCommandState(command) }
+            catch(e) { exceptions[1] = e }
+            try { results[2] = document.queryCommandValue(command) }
+            catch(e) { exceptions[2] = e }
+            actualQueryResults[command] = results;
+            actualQueryExceptions[command] = exceptions;
+        }
+    } catch(e) {
+        exception = e;
+    }
+
+    for (var i = 0; i < browserTest[1].length; i++) {
+        subtestName = testName + ": execCommand(" +
+            format_value(browserTest[1][i][0]) + ", false, " +
+            format_value(browserTest[1][i][1]) + ") " +
+            (browserTest[1][i][2] ? browserTest[1][i][2] + " " : "") +
+            "return value"
+        subsetTest(test, function() {
+            assert_equals(exception, null, "Setup must not throw an exception");
+
+            assert_equals(document.execCommand(browserTest[1][i][0], false, browserTest[1][i][1]),
+                expectedExecCommandReturnValues[i]);
+        }, subtestName);
+    }
+
+    if (exception === null) {
+        try {
+            for (var command in expectedQueryResults) {
+                var results = actualQueryResults[command];
+                var exceptions = actualQueryExceptions[command];
+                try { results[3] = document.queryCommandIndeterm(command) }
+                catch(e) { exceptions[3] = e }
+                try { results[4] = document.queryCommandState(command) }
+                catch(e) { exceptions[4] = e }
+                try { results[5] = document.queryCommandValue(command) }
+                catch(e) { exceptions[5] = e }
+            }
+
+            var newRootElement = document.documentElement.cloneNode(true);
+            newRootElement.querySelector("[contenteditable]").parentNode
+                .removeChild(newRootElement.querySelector("[contenteditable]"));
+            newRootElement.querySelector("#log").parentNode
+                .removeChild(newRootElement.querySelector("#log"));
+
+            normalizeSerializedStyle(testDiv);
+        } catch(e) {
+            exception = e;
+        }
+    }
+
+    subsetTest(test, function() {
+        assert_equals(exception, null, "Setup must not throw an exception");
+
+        // Now test for modifications to non-editable content.  First just
+        // count children:
+        assert_equals(testDiv.parentNode.childNodes.length, 2,
+            "The parent div must have two children.  Did something spill outside the test div?");
+
+        // Check for attributes
+        assert_equals(testDiv.attributes.length, 1,
+            'Wrapper div must have only one attribute (<div contenteditable="">), but has more (' +
+            formatStartTag(testDiv) + ")");
+
+        assert_equals(document.body.attributes.length, 0,
+            "Body element must have no attributes (<body>), but has more (" +
+            formatStartTag(document.body) + ")");
+
+        // Check that in general, nothing outside the test div was modified.
+        // TODO: Less verbose error reporting, the way some of the range tests
+        // do?
+        assert_equals(newRootElement.innerHTML, originalRootElement.innerHTML,
+            "Everything outside the editable div must be unchanged, but some change did occur");
+    }, testName + " checks for modifications to non-editable content");
+
+    subsetTest(test, function() {
+        assert_equals(exception, null, "Setup must not throw an exception");
+
+        if (Array.isArray(browserTest[2])) {
+          var expectedInnerHTMLArray = [];
+          browserTest[2].forEach(function (expectedInnerHTML) {
+            expectedInnerHTMLArray.push(expectedInnerHTML.replace(/[\[\]{}]/g, ""));
+          });
+          assert_in_array(testDiv.innerHTML,
+               expectedInnerHTMLArray,
+               "Unexpected innerHTML (after normalizing inline style)");
+        } else {
+          assert_equals(testDiv.innerHTML,
+              browserTest[2].replace(/[\[\]{}]/g, ""),
+              "Unexpected innerHTML (after normalizing inline style)");
+        }
+    }, testName + " compare innerHTML");
+
+    for (var command in expectedQueryResults) {
+        var descriptions = [
+            'queryCommandIndeterm("' + command + '") before',
+            'queryCommandState("' + command + '") before',
+            'queryCommandValue("' + command + '") before',
+            'queryCommandIndeterm("' + command + '") after',
+            'queryCommandState("' + command + '") after',
+            'queryCommandValue("' + command + '") after',
+        ];
+        for (var i = 0; i < 6; i++) {
+            subsetTest(test, function() {
+                assert_equals(exception, null, "Setup must not throw an exception");
+
+                if (expectedQueryResults[command][i] === null) {
+                    // Some ad hoc tests to verify that we have a real
+                    // DOMException.  FIXME: This should be made more rigorous,
+                    // with clear steps specified for checking that something
+                    // is really a DOMException.
+                    assert_true(i in actualQueryExceptions[command],
+                        "An exception must be thrown in this case");
+                    var e = actualQueryExceptions[command][i];
+                    assert_equals(typeof e, "object",
+                        "typeof thrown object");
+                    assert_idl_attribute(e, "code",
+                        "Thrown object must be a DOMException");
+                    assert_idl_attribute(e, "INVALID_ACCESS_ERR",
+                        "Thrown object must be a DOMException");
+                    assert_equals(e.code, e.INVALID_ACCESS_ERR,
+                        "Thrown object must be an INVALID_ACCESS_ERR, so its .code and .INVALID_ACCESS_ERR attributes must be equal");
+                } else if ((i == 2 || i == 5)
+                && (command == "backcolor" || command == "forecolor" || command == "hilitecolor")
+                && typeof actualQueryResults[command][i] == "string") {
+                    assert_false(i in actualQueryExceptions[command],
+                        "An exception must not be thrown in this case");
+                    // We don't return the format that the color should be in:
+                    // that's up to CSSOM.  Thus we normalize before comparing.
+                    assert_equals(normalizeColor(actualQueryResults[command][i]),
+                        expectedQueryResults[command][i],
+                        "Wrong result returned (after color normalization)");
+                } else {
+                    assert_false(i in actualQueryExceptions[command],
+                        "An exception must not be thrown in this case");
+                    assert_equals(actualQueryResults[command][i],
+                        expectedQueryResults[command][i],
+                        "Wrong result returned");
+                }
+            }, testName + " " + descriptions[i]);
+        }
+    }
+
+    // Silly Firefox
+    document.body.removeAttribute("bgcolor");
+}
+//@}
+
+/**
+ * Return a string like '<body bgcolor="#FFFFFF">'.
+ */
+function formatStartTag(el) {
+//@{
+    var ret = "<" + el.tagName.toLowerCase();
+    for (var i = 0; i < el.attributes.length; i++) {
+        ret += " " + el.attributes[i].name + '="';
+        ret += el.attributes[i].value.replace(/\&/g, "&amp;")
+            .replace(/"/g, "&quot;");
+        ret += '"';
+    }
+    return ret + ">";
+}
+//@}
+
+// vim: foldmarker=@{,@} foldmethod=marker
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:22:09 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:22:09 +0000
commit	43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree	620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/editing/include
parent	Initial commit. (diff)
download	firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip