function normalizeEndPoint(start) {
				var container, offset, walker, body = dom.getRoot(), node, nonEmptyElementsMap;
				var directionLeft, isAfterNode;

				function isTableCell(node) {
					return node && /^(TD|TH|CAPTION)$/.test(node.nodeName);
				}

				function hasBrBeforeAfter(node, left) {
					var walker = new TreeWalker(node, dom.getParent(node.parentNode, dom.isBlock) || body);

					while ((node = walker[left ? 'prev' : 'next']())) {
						if (node.nodeName === "BR") {
							return true;
						}
					}
				}

				function hasContentEditableFalseParent(node) {
					while (node && node != body) {
						if (isContentEditableFalse(node)) {
							return true;
						}

						node = node.parentNode;
					}

					return false;
				}

				function isPrevNode(node, name) {
					return node.previousSibling && node.previousSibling.nodeName == name;
				}

				// Walks the dom left/right to find a suitable text node to move the endpoint into
				// It will only walk within the current parent block or body and will stop if it hits a block or a BR/IMG
				function findTextNodeRelative(left, startNode) {
					var walker, lastInlineElement, parentBlockContainer;

					startNode = startNode || container;
					parentBlockContainer = dom.getParent(startNode.parentNode, dom.isBlock) || body;

					// Lean left before the BR element if it's the only BR within a block element. Gecko bug: #6680
					// This: <p><br>|</p> becomes <p>|<br></p>
					if (left && startNode.nodeName == 'BR' && isAfterNode && dom.isEmpty(parentBlockContainer)) {
						container = startNode.parentNode;
						offset = dom.nodeIndex(startNode);
						normalized = true;
						return;
					}

					// Walk left until we hit a text node we can move to or a block/br/img
					walker = new TreeWalker(startNode, parentBlockContainer);
					while ((node = walker[left ? 'prev' : 'next']())) {
						// Break if we hit a non content editable node
						if (dom.getContentEditableParent(node) === "false" || isCaretContainer(node)) {
							return;
						}

						// Found text node that has a length
						if (node.nodeType === 3 && node.nodeValue.length > 0) {
							container = node;
							offset = left ? node.nodeValue.length : 0;
							normalized = true;
							return;
						}

						// Break if we find a block or a BR/IMG/INPUT etc
						if (dom.isBlock(node) || nonEmptyElementsMap[node.nodeName.toLowerCase()]) {
							return;
						}

						lastInlineElement = node;
					}

					// Only fetch the last inline element when in caret mode for now
					if (collapsed && lastInlineElement) {
						container = lastInlineElement;
						normalized = true;
						offset = 0;
					}
				}

				container = rng[(start ? 'start' : 'end') + 'Container'];
				offset = rng[(start ? 'start' : 'end') + 'Offset'];
				isAfterNode = container.nodeType == 1 && offset === container.childNodes.length;
				nonEmptyElementsMap = dom.schema.getNonEmptyElements();
				directionLeft = start;

				if (isCaretContainer(container)) {
					return;
				}

				if (container.nodeType == 1 && offset > container.childNodes.length - 1) {
					directionLeft = false;
				}

				// If the container is a document move it to the body element
				if (container.nodeType === 9) {
					container = dom.getRoot();
					offset = 0;
				}

				// If the container is body try move it into the closest text node or position
				if (container === body) {
					// If start is before/after a image, table etc
					if (directionLeft) {
						node = container.childNodes[offset > 0 ? offset - 1 : 0];
						if (node) {
							if (isCaretContainer(node)) {
								return;
							}

							if (nonEmptyElementsMap[node.nodeName] || node.nodeName == "TABLE") {
								return;
							}
						}
					}

					// Resolve the index
					if (container.hasChildNodes()) {
						offset = Math.min(!directionLeft && offset > 0 ? offset - 1 : offset, container.childNodes.length - 1);
						container = container.childNodes[offset];
						offset = 0;

						// Don't normalize non collapsed selections like <p>[a</p><table></table>]
						if (!collapsed && container === body.lastChild && container.nodeName === 'TABLE') {
							return;
						}

						if (hasContentEditableFalseParent(container) || isCaretContainer(container)) {
							return;
						}

						// Don't walk into elements that doesn't have any child nodes like a IMG
						if (container.hasChildNodes() && !/TABLE/.test(container.nodeName)) {
							// Walk the DOM to find a text node to place the caret at or a BR
							node = container;
							walker = new TreeWalker(container, body);

							do {
								if (isContentEditableFalse(node) || isCaretContainer(node)) {
									normalized = false;
									break;
								}

								// Found a text node use that position
								if (node.nodeType === 3 && node.nodeValue.length > 0) {
									offset = directionLeft ? 0 : node.nodeValue.length;
									container = node;
									normalized = true;
									break;
								}

								// Found a BR/IMG element that we can place the caret before
								if (nonEmptyElementsMap[node.nodeName.toLowerCase()] && !isTableCell(node)) {
									offset = dom.nodeIndex(node);
									container = node.parentNode;

									// Put caret after image when moving the end point
									if (node.nodeName == "IMG" && !directionLeft) {
										offset++;
									}

									normalized = true;
									break;
								}
							} while ((node = (directionLeft ? walker.next() : walker.prev())));
						}
					}
				}

				// Lean the caret to the left if possible
				if (collapsed) {
					// So this: <b>x</b><i>|x</i>
					// Becomes: <b>x|</b><i>x</i>
					// Seems that only gecko has issues with this
					if (container.nodeType === 3 && offset === 0) {
						findTextNodeRelative(true);
					}

					// Lean left into empty inline elements when the caret is before a BR
					// So this: <i><b></b><i>|<br></i>
					// Becomes: <i><b>|</b><i><br></i>
					// Seems that only gecko has issues with this.
					// Special edge case for <p><a>x</a>|<br></p> since we don't want <p><a>x|</a><br></p>
					if (container.nodeType === 1) {
						node = container.childNodes[offset];

						// Offset is after the containers last child
						// then use the previous child for normalization
						if (!node) {
							node = container.childNodes[offset - 1];
						}

						if (node && node.nodeName === 'BR' && !isPrevNode(node, 'A') &&
							!hasBrBeforeAfter(node) && !hasBrBeforeAfter(node, true)) {
							findTextNodeRelative(true, node);
						}
					}
				}

				// Lean the start of the selection right if possible
				// So this: x[<b>x]</b>
				// Becomes: x<b>[x]</b>
				if (directionLeft && !collapsed && container.nodeType === 3 && offset === container.nodeValue.length) {
					findTextNodeRelative(false);
				}

				// Set endpoint if it was normalized
				if (normalized) {
					rng['set' + (start ? 'Start' : 'End')](container, offset);
				}
			}
Normalizes the specified range by finding the closest best suitable caret location.

@private
@param {Range} rng Range to normalize.
@return {Boolean} True/false if the specified range was normalized or not.