How to use getPreviousEquivalentPoint method in wpt

Best JavaScript code snippet using wpt

aryeh_implementation.js

Source:aryeh_implementation.js

...3520	}3521	// "Return null."3522	return null;3523}3524function getPreviousEquivalentPoint(node, offset) {3525	// "If node's length is zero, return null."3526	if (getNodeLength(node) == 0) {3527		return null;3528	}3529	// "If offset is 0, and node's parent is not null, and node is an inline3530	// node, return (node's parent, node's index)."3531	if (offset == 03532	&& node.parentNode3533	&& isInlineNode(node)) {3534		return [node.parentNode, getNodeIndex(node)];3535	}3536	// "If node has a child with index offset Ã¢Ëâ 1, and that child's length is3537	// not zero, and that child is an inline node, return (that child, that3538	// child's length)."3539	if (0 <= offset - 13540	&& offset - 1 < node.childNodes.length3541	&& getNodeLength(node.childNodes[offset - 1]) != 03542	&& isInlineNode(node.childNodes[offset - 1])) {3543		return [node.childNodes[offset - 1], getNodeLength(node.childNodes[offset - 1])];3544	}3545	// "Return null."3546	return null;3547}3548function getFirstEquivalentPoint(node, offset) {3549	// "While (node, offset)'s previous equivalent point is not null, set3550	// (node, offset) to its previous equivalent point."3551	var prev;3552	while (prev = getPreviousEquivalentPoint(node, offset)) {3553		node = prev[0];3554		offset = prev[1];3555	}3556	// "Return (node, offset)."3557	return [node, offset];3558}3559function getLastEquivalentPoint(node, offset) {3560	// "While (node, offset)'s next equivalent point is not null, set (node,3561	// offset) to its next equivalent point."3562	var next;3563	while (next = getNextEquivalentPoint(node, offset)) {3564		node = next[0];3565		offset = next[1];3566	}3567	// "Return (node, offset)."3568	return [node, offset];3569}3570//@}3571///// Block-extending a range /////3572//@{3573// "A boundary point (node, offset) is a block start point if either node's3574// parent is null and offset is zero; or node has a child with index offset Ã¢Ëâ3575// 1, and that child is either a visible block node or a visible br."3576function isBlockStartPoint(node, offset) {3577	return (!node.parentNode && offset == 0)3578		|| (0 <= offset - 13579		&& offset - 1 < node.childNodes.length3580		&& isVisible(node.childNodes[offset - 1])3581		&& (isBlockNode(node.childNodes[offset - 1])3582		|| isHtmlElement(node.childNodes[offset - 1], "br")));3583}3584// "A boundary point (node, offset) is a block end point if either node's3585// parent is null and offset is node's length; or node has a child with index3586// offset, and that child is a visible block node."3587function isBlockEndPoint(node, offset) {3588	return (!node.parentNode && offset == getNodeLength(node))3589		|| (offset < node.childNodes.length3590		&& isVisible(node.childNodes[offset])3591		&& isBlockNode(node.childNodes[offset]));3592}3593// "A boundary point is a block boundary point if it is either a block start3594// point or a block end point."3595function isBlockBoundaryPoint(node, offset) {3596	return isBlockStartPoint(node, offset)3597		|| isBlockEndPoint(node, offset);3598}3599function blockExtend(range) {3600	// "Let start node, start offset, end node, and end offset be the start3601	// and end nodes and offsets of the range."3602	var startNode = range.startContainer;3603	var startOffset = range.startOffset;3604	var endNode = range.endContainer;3605	var endOffset = range.endOffset;3606	// "If some ancestor container of start node is an li, set start offset to3607	// the index of the last such li in tree order, and set start node to that3608	// li's parent."3609	var liAncestors = getAncestors(startNode).concat(startNode)3610		.filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3611		.slice(-1);3612	if (liAncestors.length) {3613		startOffset = getNodeIndex(liAncestors[0]);3614		startNode = liAncestors[0].parentNode;3615	}3616	// "If (start node, start offset) is not a block start point, repeat the3617	// following steps:"3618	if (!isBlockStartPoint(startNode, startOffset)) do {3619		// "If start offset is zero, set it to start node's index, then set3620		// start node to its parent."3621		if (startOffset == 0) {3622			startOffset = getNodeIndex(startNode);3623			startNode = startNode.parentNode;3624		// "Otherwise, subtract one from start offset."3625		} else {3626			startOffset--;3627		}3628		// "If (start node, start offset) is a block boundary point, break from3629		// this loop."3630	} while (!isBlockBoundaryPoint(startNode, startOffset));3631	// "While start offset is zero and start node's parent is not null, set3632	// start offset to start node's index, then set start node to its parent."3633	while (startOffset == 03634	&& startNode.parentNode) {3635		startOffset = getNodeIndex(startNode);3636		startNode = startNode.parentNode;3637	}3638	// "If some ancestor container of end node is an li, set end offset to one3639	// plus the index of the last such li in tree order, and set end node to3640	// that li's parent."3641	var liAncestors = getAncestors(endNode).concat(endNode)3642		.filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3643		.slice(-1);3644	if (liAncestors.length) {3645		endOffset = 1 + getNodeIndex(liAncestors[0]);3646		endNode = liAncestors[0].parentNode;3647	}3648	// "If (end node, end offset) is not a block end point, repeat the3649	// following steps:"3650	if (!isBlockEndPoint(endNode, endOffset)) do {3651		// "If end offset is end node's length, set it to one plus end node's3652		// index, then set end node to its parent."3653		if (endOffset == getNodeLength(endNode)) {3654			endOffset = 1 + getNodeIndex(endNode);3655			endNode = endNode.parentNode;3656		// "Otherwise, add one to end offset.3657		} else {3658			endOffset++;3659		}3660		// "If (end node, end offset) is a block boundary point, break from3661		// this loop."3662	} while (!isBlockBoundaryPoint(endNode, endOffset));3663	// "While end offset is end node's length and end node's parent is not3664	// null, set end offset to one plus end node's index, then set end node to3665	// its parent."3666	while (endOffset == getNodeLength(endNode)3667	&& endNode.parentNode) {3668		endOffset = 1 + getNodeIndex(endNode);3669		endNode = endNode.parentNode;3670	}3671	// "Let new range be a new range whose start and end nodes and offsets3672	// are start node, start offset, end node, and end offset."3673	var newRange = startNode.ownerDocument.createRange();3674	newRange.setStart(startNode, startOffset);3675	newRange.setEnd(endNode, endOffset);3676	// "Return new range."3677	return newRange;3678}3679function followsLineBreak(node) {3680	// "Let offset be zero."3681	var offset = 0;3682	// "While (node, offset) is not a block boundary point:"3683	while (!isBlockBoundaryPoint(node, offset)) {3684		// "If node has a visible child with index offset minus one, return3685		// false."3686		if (0 <= offset - 13687		&& offset - 1 < node.childNodes.length3688		&& isVisible(node.childNodes[offset - 1])) {3689			return false;3690		}3691		// "If offset is zero or node has no children, set offset to node's3692		// index, then set node to its parent."3693		if (offset == 03694		|| !node.hasChildNodes()) {3695			offset = getNodeIndex(node);3696			node = node.parentNode;3697		// "Otherwise, set node to its child with index offset minus one, then3698		// set offset to node's length."3699		} else {3700			node = node.childNodes[offset - 1];3701			offset = getNodeLength(node);3702		}3703	}3704	// "Return true."3705	return true;3706}3707function precedesLineBreak(node) {3708	// "Let offset be node's length."3709	var offset = getNodeLength(node);3710	// "While (node, offset) is not a block boundary point:"3711	while (!isBlockBoundaryPoint(node, offset)) {3712		// "If node has a visible child with index offset, return false."3713		if (offset < node.childNodes.length3714		&& isVisible(node.childNodes[offset])) {3715			return false;3716		}3717		// "If offset is node's length or node has no children, set offset to3718		// one plus node's index, then set node to its parent."3719		if (offset == getNodeLength(node)3720		|| !node.hasChildNodes()) {3721			offset = 1 + getNodeIndex(node);3722			node = node.parentNode;3723		// "Otherwise, set node to its child with index offset and set offset3724		// to zero."3725		} else {3726			node = node.childNodes[offset];3727			offset = 0;3728		}3729	}3730	// "Return true."3731	return true;3732}3733//@}3734///// Recording and restoring overrides /////3735//@{3736function recordCurrentOverrides() {3737	// "Let overrides be a list of (string, string or boolean) ordered pairs,3738	// initially empty."3739	var overrides = [];3740	// "If there is a value override for "createLink", add ("createLink", value3741	// override for "createLink") to overrides."3742	if (getValueOverride("createlink") !== undefined) {3743		overrides.push(["createlink", getValueOverride("createlink")]);3744	}3745	// "For each command in the list "bold", "italic", "strikethrough",3746	// "subscript", "superscript", "underline", in order: if there is a state3747	// override for command, add (command, command's state override) to3748	// overrides."3749	["bold", "italic", "strikethrough", "subscript", "superscript",3750	"underline"].forEach(function(command) {3751		if (getStateOverride(command) !== undefined) {3752			overrides.push([command, getStateOverride(command)]);3753		}3754	});3755	// "For each command in the list "fontName", "fontSize", "foreColor",3756	// "hiliteColor", in order: if there is a value override for command, add3757	// (command, command's value override) to overrides."3758	["fontname", "fontsize", "forecolor",3759	"hilitecolor"].forEach(function(command) {3760		if (getValueOverride(command) !== undefined) {3761			overrides.push([command, getValueOverride(command)]);3762		}3763	});3764	// "Return overrides."3765	return overrides;3766}3767function recordCurrentStatesAndValues() {3768	// "Let overrides be a list of (string, string or boolean) ordered pairs,3769	// initially empty."3770	var overrides = [];3771	// "Let node be the first formattable node effectively contained in the3772	// active range, or null if there is none."3773	var node = getAllEffectivelyContainedNodes(getActiveRange())3774		.filter(isFormattableNode)[0];3775	// "If node is null, return overrides."3776	if (!node) {3777		return overrides;3778	}3779	// "Add ("createLink", node's effective command value for "createLink") to3780	// overrides."3781	overrides.push(["createlink", getEffectiveCommandValue(node, "createlink")]);3782	// "For each command in the list "bold", "italic", "strikethrough",3783	// "subscript", "superscript", "underline", in order: if node's effective3784	// command value for command is one of its inline command activated values,3785	// add (command, true) to overrides, and otherwise add (command, false) to3786	// overrides."3787	["bold", "italic", "strikethrough", "subscript", "superscript",3788	"underline"].forEach(function(command) {3789		if (commands[command].inlineCommandActivatedValues3790		.indexOf(getEffectiveCommandValue(node, command)) != -1) {3791			overrides.push([command, true]);3792		} else {3793			overrides.push([command, false]);3794		}3795	});3796	// "For each command in the list "fontName", "foreColor", "hiliteColor", in3797	// order: add (command, command's value) to overrides."3798	["fontname", "fontsize", "forecolor", "hilitecolor"].forEach(function(command) {3799		overrides.push([command, commands[command].value()]);3800	});3801	// "Add ("fontSize", node's effective command value for "fontSize") to3802	// overrides."3803	overrides.push(["fontsize", getEffectiveCommandValue(node, "fontsize")]);3804	// "Return overrides."3805	return overrides;3806}3807function restoreStatesAndValues(overrides) {3808	// "Let node be the first formattable node effectively contained in the3809	// active range, or null if there is none."3810	var node = getAllEffectivelyContainedNodes(getActiveRange())3811		.filter(isFormattableNode)[0];3812	// "If node is not null, then for each (command, override) pair in3813	// overrides, in order:"3814	if (node) {3815		for (var i = 0; i < overrides.length; i++) {3816			var command = overrides[i][0];3817			var override = overrides[i][1];3818			// "If override is a boolean, and queryCommandState(command)3819			// returns something different from override, call3820			// execCommand(command)."3821			if (typeof override == "boolean"3822			&& myQueryCommandState(command) != override) {3823				myExecCommand(command);3824			// "Otherwise, if override is a string, and command is neither3825			// "createLink" nor "fontSize", and queryCommandValue(command)3826			// returns something not equivalent to override, call3827			// execCommand(command, false, override)."3828			} else if (typeof override == "string"3829			&& command != "createlink"3830			&& command != "fontsize"3831			&& !areEquivalentValues(command, myQueryCommandValue(command), override)) {3832				myExecCommand(command, false, override);3833			// "Otherwise, if override is a string; and command is3834			// "createLink"; and either there is a value override for3835			// "createLink" that is not equal to override, or there is no value3836			// override for "createLink" and node's effective command value for3837			// "createLink" is not equal to override: call3838			// execCommand("createLink", false, override)."3839			} else if (typeof override == "string"3840			&& command == "createlink"3841			&& (3842				(3843					getValueOverride("createlink") !== undefined3844					&& getValueOverride("createlink") !== override3845				) || (3846					getValueOverride("createlink") === undefined3847					&& getEffectiveCommandValue(node, "createlink") !== override3848				)3849			)) {3850				myExecCommand("createlink", false, override);3851			// "Otherwise, if override is a string; and command is "fontSize";3852			// and either there is a value override for "fontSize" that is not3853			// equal to override, or there is no value override for "fontSize"3854			// and node's effective command value for "fontSize" is not loosely3855			// equivalent to override:"3856			} else if (typeof override == "string"3857			&& command == "fontsize"3858			&& (3859				(3860					getValueOverride("fontsize") !== undefined3861					&& getValueOverride("fontsize") !== override3862				) || (3863					getValueOverride("fontsize") === undefined3864					&& !areLooselyEquivalentValues(command, getEffectiveCommandValue(node, "fontsize"), override)3865				)3866			)) {3867				// "Convert override to an integer number of pixels, and set3868				// override to the legacy font size for the result."3869				override = getLegacyFontSize(override);3870				// "Call execCommand("fontSize", false, override)."3871				myExecCommand("fontsize", false, override);3872			// "Otherwise, continue this loop from the beginning."3873			} else {3874				continue;3875			}3876			// "Set node to the first formattable node effectively contained in3877			// the active range, if there is one."3878			node = getAllEffectivelyContainedNodes(getActiveRange())3879				.filter(isFormattableNode)[0]3880				|| node;3881		}3882	// "Otherwise, for each (command, override) pair in overrides, in order:"3883	} else {3884		for (var i = 0; i < overrides.length; i++) {3885			var command = overrides[i][0];3886			var override = overrides[i][1];3887			// "If override is a boolean, set the state override for command to3888			// override."3889			if (typeof override == "boolean") {3890				setStateOverride(command, override);3891			}3892			// "If override is a string, set the value override for command to3893			// override."3894			if (typeof override == "string") {3895				setValueOverride(command, override);3896			}3897		}3898	}3899}3900//@}3901///// Deleting the selection /////3902//@{3903// The flags argument is a dictionary that can have blockMerging,3904// stripWrappers, and/or direction as keys.3905function deleteSelection(flags) {3906	if (flags === undefined) {3907		flags = {};3908	}3909	var blockMerging = "blockMerging" in flags ? Boolean(flags.blockMerging) : true;3910	var stripWrappers = "stripWrappers" in flags ? Boolean(flags.stripWrappers) : true;3911	var direction = "direction" in flags ? flags.direction : "forward";3912	// "If the active range is null, abort these steps and do nothing."3913	if (!getActiveRange()) {3914		return;3915	}3916	// "Canonicalize whitespace at the active range's start."3917	canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);3918	// "Canonicalize whitespace at the active range's end."3919	canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset);3920	// "Let (start node, start offset) be the last equivalent point for the3921	// active range's start."3922	var start = getLastEquivalentPoint(getActiveRange().startContainer, getActiveRange().startOffset);3923	var startNode = start[0];3924	var startOffset = start[1];3925	// "Let (end node, end offset) be the first equivalent point for the active3926	// range's end."3927	var end = getFirstEquivalentPoint(getActiveRange().endContainer, getActiveRange().endOffset);3928	var endNode = end[0];3929	var endOffset = end[1];3930	// "If (end node, end offset) is not after (start node, start offset):"3931	if (getPosition(endNode, endOffset, startNode, startOffset) !== "after") {3932		// "If direction is "forward", call collapseToStart() on the context3933		// object's Selection."3934		//3935		// Here and in a few other places, we check rangeCount to work around a3936		// WebKit bug: it will sometimes incorrectly remove ranges from the3937		// selection if nodes are removed, so collapseToStart() will throw.3938		// This will break everything if we're using an actual selection, but3939		// if getActiveRange() is really just returning globalRange and that's3940		// all we care about, it will work fine.  I only add the extra check3941		// for errors I actually hit in testing.3942		if (direction == "forward") {3943			if (getSelection().rangeCount) {3944				getSelection().collapseToStart();3945			}3946			getActiveRange().collapse(true);3947		// "Otherwise, call collapseToEnd() on the context object's Selection."3948		} else {3949			getSelection().collapseToEnd();3950			getActiveRange().collapse(false);3951		}3952		// "Abort these steps."3953		return;3954	}3955	// "If start node is a Text node and start offset is 0, set start offset to3956	// the index of start node, then set start node to its parent."3957	if (startNode.nodeType == Node.TEXT_NODE3958	&& startOffset == 0) {3959		startOffset = getNodeIndex(startNode);3960		startNode = startNode.parentNode;3961	}3962	// "If end node is a Text node and end offset is its length, set end offset3963	// to one plus the index of end node, then set end node to its parent."3964	if (endNode.nodeType == Node.TEXT_NODE3965	&& endOffset == getNodeLength(endNode)) {3966		endOffset = 1 + getNodeIndex(endNode);3967		endNode = endNode.parentNode;3968	}3969	// "Call collapse(start node, start offset) on the context object's3970	// Selection."3971	getSelection().collapse(startNode, startOffset);3972	getActiveRange().setStart(startNode, startOffset);3973	// "Call extend(end node, end offset) on the context object's Selection."3974	getSelection().extend(endNode, endOffset);3975	getActiveRange().setEnd(endNode, endOffset);3976	// "Let start block be the active range's start node."3977	var startBlock = getActiveRange().startContainer;3978	// "While start block's parent is in the same editing host and start block3979	// is an inline node, set start block to its parent."3980	while (inSameEditingHost(startBlock, startBlock.parentNode)3981	&& isInlineNode(startBlock)) {3982		startBlock = startBlock.parentNode;3983	}3984	// "If start block is neither a block node nor an editing host, or "span"3985	// is not an allowed child of start block, or start block is a td or th,3986	// set start block to null."3987	if ((!isBlockNode(startBlock) && !isEditingHost(startBlock))3988	|| !isAllowedChild("span", startBlock)3989	|| isHtmlElement(startBlock, ["td", "th"])) {3990		startBlock = null;3991	}3992	// "Let end block be the active range's end node."3993	var endBlock = getActiveRange().endContainer;3994	// "While end block's parent is in the same editing host and end block is3995	// an inline node, set end block to its parent."3996	while (inSameEditingHost(endBlock, endBlock.parentNode)3997	&& isInlineNode(endBlock)) {3998		endBlock = endBlock.parentNode;3999	}4000	// "If end block is neither a block node nor an editing host, or "span" is4001	// not an allowed child of end block, or end block is a td or th, set end4002	// block to null."4003	if ((!isBlockNode(endBlock) && !isEditingHost(endBlock))4004	|| !isAllowedChild("span", endBlock)4005	|| isHtmlElement(endBlock, ["td", "th"])) {4006		endBlock = null;4007	}4008	// "Record current states and values, and let overrides be the result."4009	var overrides = recordCurrentStatesAndValues();4010	// "If start node and end node are the same, and start node is an editable4011	// Text node:"4012	if (startNode == endNode4013	&& isEditable(startNode)4014	&& startNode.nodeType == Node.TEXT_NODE) {4015		// "Call deleteData(start offset, end offset Ã¢Ëâ start offset) on start4016		// node."4017		startNode.deleteData(startOffset, endOffset - startOffset);4018		// "Canonicalize whitespace at (start node, start offset), with fix4019		// collapsed space false."4020		canonicalizeWhitespace(startNode, startOffset, false);4021		// "If direction is "forward", call collapseToStart() on the context4022		// object's Selection."4023		if (direction == "forward") {4024			if (getSelection().rangeCount) {4025				getSelection().collapseToStart();4026			}4027			getActiveRange().collapse(true);4028		// "Otherwise, call collapseToEnd() on the context object's Selection."4029		} else {4030			getSelection().collapseToEnd();4031			getActiveRange().collapse(false);4032		}4033		// "Restore states and values from overrides."4034		restoreStatesAndValues(overrides);4035		// "Abort these steps."4036		return;4037	}4038	// "If start node is an editable Text node, call deleteData() on it, with4039	// start offset as the first argument and (length of start node Ã¢Ëâ start4040	// offset) as the second argument."4041	if (isEditable(startNode)4042	&& startNode.nodeType == Node.TEXT_NODE) {4043		startNode.deleteData(startOffset, getNodeLength(startNode) - startOffset);4044	}4045	// "Let node list be a list of nodes, initially empty."4046	//4047	// "For each node contained in the active range, append node to node list4048	// if the last member of node list (if any) is not an ancestor of node;4049	// node is editable; and node is not a thead, tbody, tfoot, tr, th, or td."4050	var nodeList = getContainedNodes(getActiveRange(),4051		function(node) {4052			return isEditable(node)4053				&& !isHtmlElement(node, ["thead", "tbody", "tfoot", "tr", "th", "td"]);4054		}4055	);4056	// "For each node in node list:"4057	for (var i = 0; i < nodeList.length; i++) {4058		var node = nodeList[i];4059		// "Let parent be the parent of node."4060		var parent_ = node.parentNode;4061		// "Remove node from parent."4062		parent_.removeChild(node);4063		// "If the block node of parent has no visible children, and parent is4064		// editable or an editing host, call createElement("br") on the context4065		// object and append the result as the last child of parent."4066		if (![].some.call(getBlockNodeOf(parent_).childNodes, isVisible)4067		&& (isEditable(parent_) || isEditingHost(parent_))) {4068			parent_.appendChild(document.createElement("br"));4069		}4070		// "If strip wrappers is true or parent is not an ancestor container of4071		// start node, while parent is an editable inline node with length 0,4072		// let grandparent be the parent of parent, then remove parent from4073		// grandparent, then set parent to grandparent."4074		if (stripWrappers4075		|| (!isAncestor(parent_, startNode) && parent_ != startNode)) {4076			while (isEditable(parent_)4077			&& isInlineNode(parent_)4078			&& getNodeLength(parent_) == 0) {4079				var grandparent = parent_.parentNode;4080				grandparent.removeChild(parent_);4081				parent_ = grandparent;4082			}4083		}4084	}4085	// "If end node is an editable Text node, call deleteData(0, end offset) on4086	// it."4087	if (isEditable(endNode)4088	&& endNode.nodeType == Node.TEXT_NODE) {4089		endNode.deleteData(0, endOffset);4090	}4091	// "Canonicalize whitespace at the active range's start, with fix collapsed4092	// space false."4093	canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);4094	// "Canonicalize whitespace at the active range's end, with fix collapsed4095	// space false."4096	canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);4097	// "If block merging is false, or start block or end block is null, or4098	// start block is not in the same editing host as end block, or start block4099	// and end block are the same:"4100	if (!blockMerging4101	|| !startBlock4102	|| !endBlock4103	|| !inSameEditingHost(startBlock, endBlock)4104	|| startBlock == endBlock) {4105		// "If direction is "forward", call collapseToStart() on the context4106		// object's Selection."4107		if (direction == "forward") {4108			if (getSelection().rangeCount) {4109				getSelection().collapseToStart();4110			}4111			getActiveRange().collapse(true);4112		// "Otherwise, call collapseToEnd() on the context object's Selection."4113		} else {4114			if (getSelection().rangeCount) {4115				getSelection().collapseToEnd();4116			}4117			getActiveRange().collapse(false);4118		}4119		// "Restore states and values from overrides."4120		restoreStatesAndValues(overrides);4121		// "Abort these steps."4122		return;4123	}4124	// "If start block has one child, which is a collapsed block prop, remove4125	// its child from it."4126	if (startBlock.children.length == 14127	&& isCollapsedBlockProp(startBlock.firstChild)) {4128		startBlock.removeChild(startBlock.firstChild);4129	}4130	// "If start block is an ancestor of end block:"4131	if (isAncestor(startBlock, endBlock)) {4132		// "Let reference node be end block."4133		var referenceNode = endBlock;4134		// "While reference node is not a child of start block, set reference4135		// node to its parent."4136		while (referenceNode.parentNode != startBlock) {4137			referenceNode = referenceNode.parentNode;4138		}4139		// "Call collapse() on the context object's Selection, with first4140		// argument start block and second argument the index of reference4141		// node."4142		getSelection().collapse(startBlock, getNodeIndex(referenceNode));4143		getActiveRange().setStart(startBlock, getNodeIndex(referenceNode));4144		getActiveRange().collapse(true);4145		// "If end block has no children:"4146		if (!endBlock.hasChildNodes()) {4147			// "While end block is editable and is the only child of its parent4148			// and is not a child of start block, let parent equal end block,4149			// then remove end block from parent, then set end block to4150			// parent."4151			while (isEditable(endBlock)4152			&& endBlock.parentNode.childNodes.length == 14153			&& endBlock.parentNode != startBlock) {4154				var parent_ = endBlock;4155				parent_.removeChild(endBlock);4156				endBlock = parent_;4157			}4158			// "If end block is editable and is not an inline node, and its4159			// previousSibling and nextSibling are both inline nodes, call4160			// createElement("br") on the context object and insert it into end4161			// block's parent immediately after end block."4162			if (isEditable(endBlock)4163			&& !isInlineNode(endBlock)4164			&& isInlineNode(endBlock.previousSibling)4165			&& isInlineNode(endBlock.nextSibling)) {4166				endBlock.parentNode.insertBefore(document.createElement("br"), endBlock.nextSibling);4167			}4168			// "If end block is editable, remove it from its parent."4169			if (isEditable(endBlock)) {4170				endBlock.parentNode.removeChild(endBlock);4171			}4172			// "Restore states and values from overrides."4173			restoreStatesAndValues(overrides);4174			// "Abort these steps."4175			return;4176		}4177		// "If end block's firstChild is not an inline node, restore states and4178		// values from overrides, then abort these steps."4179		if (!isInlineNode(endBlock.firstChild)) {4180			restoreStatesAndValues(overrides);4181			return;4182		}4183		// "Let children be a list of nodes, initially empty."4184		var children = [];4185		// "Append the first child of end block to children."4186		children.push(endBlock.firstChild);4187		// "While children's last member is not a br, and children's last4188		// member's nextSibling is an inline node, append children's last4189		// member's nextSibling to children."4190		while (!isHtmlElement(children[children.length - 1], "br")4191		&& isInlineNode(children[children.length - 1].nextSibling)) {4192			children.push(children[children.length - 1].nextSibling);4193		}4194		// "Record the values of children, and let values be the result."4195		var values = recordValues(children);4196		// "While children's first member's parent is not start block, split4197		// the parent of children."4198		while (children[0].parentNode != startBlock) {4199			splitParent(children);4200		}4201		// "If children's first member's previousSibling is an editable br,4202		// remove that br from its parent."4203		if (isEditable(children[0].previousSibling)4204		&& isHtmlElement(children[0].previousSibling, "br")) {4205			children[0].parentNode.removeChild(children[0].previousSibling);4206		}4207	// "Otherwise, if start block is a descendant of end block:"4208	} else if (isDescendant(startBlock, endBlock)) {4209		// "Call collapse() on the context object's Selection, with first4210		// argument start block and second argument start block's length."4211		getSelection().collapse(startBlock, getNodeLength(startBlock));4212		getActiveRange().setStart(startBlock, getNodeLength(startBlock));4213		getActiveRange().collapse(true);4214		// "Let reference node be start block."4215		var referenceNode = startBlock;4216		// "While reference node is not a child of end block, set reference4217		// node to its parent."4218		while (referenceNode.parentNode != endBlock) {4219			referenceNode = referenceNode.parentNode;4220		}4221		// "If reference node's nextSibling is an inline node and start block's4222		// lastChild is a br, remove start block's lastChild from it."4223		if (isInlineNode(referenceNode.nextSibling)4224		&& isHtmlElement(startBlock.lastChild, "br")) {4225			startBlock.removeChild(startBlock.lastChild);4226		}4227		// "Let nodes to move be a list of nodes, initially empty."4228		var nodesToMove = [];4229		// "If reference node's nextSibling is neither null nor a block node,4230		// append it to nodes to move."4231		if (referenceNode.nextSibling4232		&& !isBlockNode(referenceNode.nextSibling)) {4233			nodesToMove.push(referenceNode.nextSibling);4234		}4235		// "While nodes to move is nonempty and its last member isn't a br and4236		// its last member's nextSibling is neither null nor a block node,4237		// append its last member's nextSibling to nodes to move."4238		if (nodesToMove.length4239		&& !isHtmlElement(nodesToMove[nodesToMove.length - 1], "br")4240		&& nodesToMove[nodesToMove.length - 1].nextSibling4241		&& !isBlockNode(nodesToMove[nodesToMove.length - 1].nextSibling)) {4242			nodesToMove.push(nodesToMove[nodesToMove.length - 1].nextSibling);4243		}4244		// "Record the values of nodes to move, and let values be the result."4245		var values = recordValues(nodesToMove);4246		// "For each node in nodes to move, append node as the last child of4247		// start block, preserving ranges."4248		nodesToMove.forEach(function(node) {4249			movePreservingRanges(node, startBlock, -1);4250		});4251	// "Otherwise:"4252	} else {4253		// "Call collapse() on the context object's Selection, with first4254		// argument start block and second argument start block's length."4255		getSelection().collapse(startBlock, getNodeLength(startBlock));4256		getActiveRange().setStart(startBlock, getNodeLength(startBlock));4257		getActiveRange().collapse(true);4258		// "If end block's firstChild is an inline node and start block's4259		// lastChild is a br, remove start block's lastChild from it."4260		if (isInlineNode(endBlock.firstChild)4261		&& isHtmlElement(startBlock.lastChild, "br")) {4262			startBlock.removeChild(startBlock.lastChild);4263		}4264		// "Record the values of end block's children, and let values be the4265		// result."4266		var values = recordValues([].slice.call(endBlock.childNodes));4267		// "While end block has children, append the first child of end block4268		// to start block, preserving ranges."4269		while (endBlock.hasChildNodes()) {4270			movePreservingRanges(endBlock.firstChild, startBlock, -1);4271		}4272		// "While end block has no children, let parent be the parent of end4273		// block, then remove end block from parent, then set end block to4274		// parent."4275		while (!endBlock.hasChildNodes()) {4276			var parent_ = endBlock.parentNode;4277			parent_.removeChild(endBlock);4278			endBlock = parent_;4279		}4280	}4281	// "Let ancestor be start block."4282	var ancestor = startBlock;4283	// "While ancestor has an inclusive ancestor ol in the same editing host4284	// whose nextSibling is also an ol in the same editing host, or an4285	// inclusive ancestor ul in the same editing host whose nextSibling is also4286	// a ul in the same editing host:"4287	while (getInclusiveAncestors(ancestor).some(function(node) {4288		return inSameEditingHost(ancestor, node)4289			&& (4290				(isHtmlElement(node, "ol") && isHtmlElement(node.nextSibling, "ol"))4291				|| (isHtmlElement(node, "ul") && isHtmlElement(node.nextSibling, "ul"))4292			) && inSameEditingHost(ancestor, node.nextSibling);4293	})) {4294		// "While ancestor and its nextSibling are not both ols in the same4295		// editing host, and are also not both uls in the same editing host,4296		// set ancestor to its parent."4297		while (!(4298			isHtmlElement(ancestor, "ol")4299			&& isHtmlElement(ancestor.nextSibling, "ol")4300			&& inSameEditingHost(ancestor, ancestor.nextSibling)4301		) && !(4302			isHtmlElement(ancestor, "ul")4303			&& isHtmlElement(ancestor.nextSibling, "ul")4304			&& inSameEditingHost(ancestor, ancestor.nextSibling)4305		)) {4306			ancestor = ancestor.parentNode;4307		}4308		// "While ancestor's nextSibling has children, append ancestor's4309		// nextSibling's firstChild as the last child of ancestor, preserving4310		// ranges."4311		while (ancestor.nextSibling.hasChildNodes()) {4312			movePreservingRanges(ancestor.nextSibling.firstChild, ancestor, -1);4313		}4314		// "Remove ancestor's nextSibling from its parent."4315		ancestor.parentNode.removeChild(ancestor.nextSibling);4316	}4317	// "Restore the values from values."4318	restoreValues(values);4319	// "If start block has no children, call createElement("br") on the context4320	// object and append the result as the last child of start block."4321	if (!startBlock.hasChildNodes()) {4322		startBlock.appendChild(document.createElement("br"));4323	}4324	// "Remove extraneous line breaks at the end of start block."4325	removeExtraneousLineBreaksAtTheEndOf(startBlock);4326	// "Restore states and values from overrides."4327	restoreStatesAndValues(overrides);4328}4329//@}4330///// Splitting a node list's parent /////4331//@{4332function splitParent(nodeList) {4333	// "Let original parent be the parent of the first member of node list."4334	var originalParent = nodeList[0].parentNode;4335	// "If original parent is not editable or its parent is null, do nothing4336	// and abort these steps."4337	if (!isEditable(originalParent)4338	|| !originalParent.parentNode) {4339		return;4340	}4341	// "If the first child of original parent is in node list, remove4342	// extraneous line breaks before original parent."4343	if (nodeList.indexOf(originalParent.firstChild) != -1) {4344		removeExtraneousLineBreaksBefore(originalParent);4345	}4346	// "If the first child of original parent is in node list, and original4347	// parent follows a line break, set follows line break to true. Otherwise,4348	// set follows line break to false."4349	var followsLineBreak_ = nodeList.indexOf(originalParent.firstChild) != -14350		&& followsLineBreak(originalParent);4351	// "If the last child of original parent is in node list, and original4352	// parent precedes a line break, set precedes line break to true.4353	// Otherwise, set precedes line break to false."4354	var precedesLineBreak_ = nodeList.indexOf(originalParent.lastChild) != -14355		&& precedesLineBreak(originalParent);4356	// "If the first child of original parent is not in node list, but its last4357	// child is:"4358	if (nodeList.indexOf(originalParent.firstChild) == -14359	&& nodeList.indexOf(originalParent.lastChild) != -1) {4360		// "For each node in node list, in reverse order, insert node into the4361		// parent of original parent immediately after original parent,4362		// preserving ranges."4363		for (var i = nodeList.length - 1; i >= 0; i--) {4364			movePreservingRanges(nodeList[i], originalParent.parentNode, 1 + getNodeIndex(originalParent));4365		}4366		// "If precedes line break is true, and the last member of node list4367		// does not precede a line break, call createElement("br") on the4368		// context object and insert the result immediately after the last4369		// member of node list."4370		if (precedesLineBreak_4371		&& !precedesLineBreak(nodeList[nodeList.length - 1])) {4372			nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4373		}4374		// "Remove extraneous line breaks at the end of original parent."4375		removeExtraneousLineBreaksAtTheEndOf(originalParent);4376		// "Abort these steps."4377		return;4378	}4379	// "If the first child of original parent is not in node list:"4380	if (nodeList.indexOf(originalParent.firstChild) == -1) {4381		// "Let cloned parent be the result of calling cloneNode(false) on4382		// original parent."4383		var clonedParent = originalParent.cloneNode(false);4384		// "If original parent has an id attribute, unset it."4385		originalParent.removeAttribute("id");4386		// "Insert cloned parent into the parent of original parent immediately4387		// before original parent."4388		originalParent.parentNode.insertBefore(clonedParent, originalParent);4389		// "While the previousSibling of the first member of node list is not4390		// null, append the first child of original parent as the last child of4391		// cloned parent, preserving ranges."4392		while (nodeList[0].previousSibling) {4393			movePreservingRanges(originalParent.firstChild, clonedParent, clonedParent.childNodes.length);4394		}4395	}4396	// "For each node in node list, insert node into the parent of original4397	// parent immediately before original parent, preserving ranges."4398	for (var i = 0; i < nodeList.length; i++) {4399		movePreservingRanges(nodeList[i], originalParent.parentNode, getNodeIndex(originalParent));4400	}4401	// "If follows line break is true, and the first member of node list does4402	// not follow a line break, call createElement("br") on the context object4403	// and insert the result immediately before the first member of node list."4404	if (followsLineBreak_4405	&& !followsLineBreak(nodeList[0])) {4406		nodeList[0].parentNode.insertBefore(document.createElement("br"), nodeList[0]);4407	}4408	// "If the last member of node list is an inline node other than a br, and4409	// the first child of original parent is a br, and original parent is not4410	// an inline node, remove the first child of original parent from original4411	// parent."4412	if (isInlineNode(nodeList[nodeList.length - 1])4413	&& !isHtmlElement(nodeList[nodeList.length - 1], "br")4414	&& isHtmlElement(originalParent.firstChild, "br")4415	&& !isInlineNode(originalParent)) {4416		originalParent.removeChild(originalParent.firstChild);4417	}4418	// "If original parent has no children:"4419	if (!originalParent.hasChildNodes()) {4420		// "Remove original parent from its parent."4421		originalParent.parentNode.removeChild(originalParent);4422		// "If precedes line break is true, and the last member of node list4423		// does not precede a line break, call createElement("br") on the4424		// context object and insert the result immediately after the last4425		// member of node list."4426		if (precedesLineBreak_4427		&& !precedesLineBreak(nodeList[nodeList.length - 1])) {4428			nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4429		}4430	// "Otherwise, remove extraneous line breaks before original parent."4431	} else {4432		removeExtraneousLineBreaksBefore(originalParent);4433	}4434	// "If node list's last member's nextSibling is null, but its parent is not4435	// null, remove extraneous line breaks at the end of node list's last4436	// member's parent."4437	if (!nodeList[nodeList.length - 1].nextSibling4438	&& nodeList[nodeList.length - 1].parentNode) {4439		removeExtraneousLineBreaksAtTheEndOf(nodeList[nodeList.length - 1].parentNode);4440	}4441}4442// "To remove a node node while preserving its descendants, split the parent of4443// node's children if it has any. If it has no children, instead remove it from4444// its parent."4445function removePreservingDescendants(node) {4446	if (node.hasChildNodes()) {4447		splitParent([].slice.call(node.childNodes));4448	} else {4449		node.parentNode.removeChild(node);4450	}4451}4452//@}4453///// Canonical space sequences /////4454//@{4455function canonicalSpaceSequence(n, nonBreakingStart, nonBreakingEnd) {4456	// "If n is zero, return the empty string."4457	if (n == 0) {4458		return "";4459	}4460	// "If n is one and both non-breaking start and non-breaking end are false,4461	// return a single space (U+0020)."4462	if (n == 1 && !nonBreakingStart && !nonBreakingEnd) {4463		return " ";4464	}4465	// "If n is one, return a single non-breaking space (U+00A0)."4466	if (n == 1) {4467		return "\xa0";4468	}4469	// "Let buffer be the empty string."4470	var buffer = "";4471	// "If non-breaking start is true, let repeated pair be U+00A0 U+0020.4472	// Otherwise, let it be U+0020 U+00A0."4473	var repeatedPair;4474	if (nonBreakingStart) {4475		repeatedPair = "\xa0 ";4476	} else {4477		repeatedPair = " \xa0";4478	}4479	// "While n is greater than three, append repeated pair to buffer and4480	// subtract two from n."4481	while (n > 3) {4482		buffer += repeatedPair;4483		n -= 2;4484	}4485	// "If n is three, append a three-element string to buffer depending on4486	// non-breaking start and non-breaking end:"4487	if (n == 3) {4488		buffer +=4489			!nonBreakingStart && !nonBreakingEnd ? " \xa0 "4490			: nonBreakingStart && !nonBreakingEnd ? "\xa0\xa0 "4491			: !nonBreakingStart && nonBreakingEnd ? " \xa0\xa0"4492			: nonBreakingStart && nonBreakingEnd ? "\xa0 \xa0"4493			: "impossible";4494	// "Otherwise, append a two-element string to buffer depending on4495	// non-breaking start and non-breaking end:"4496	} else {4497		buffer +=4498			!nonBreakingStart && !nonBreakingEnd ? "\xa0 "4499			: nonBreakingStart && !nonBreakingEnd ? "\xa0 "4500			: !nonBreakingStart && nonBreakingEnd ? " \xa0"4501			: nonBreakingStart && nonBreakingEnd ? "\xa0\xa0"4502			: "impossible";4503	}4504	// "Return buffer."4505	return buffer;4506}4507function canonicalizeWhitespace(node, offset, fixCollapsedSpace) {4508	if (fixCollapsedSpace === undefined) {4509		// "an optional boolean argument fix collapsed space that defaults to4510		// true"4511		fixCollapsedSpace = true;4512	}4513	// "If node is neither editable nor an editing host, abort these steps."4514	if (!isEditable(node) && !isEditingHost(node)) {4515		return;4516	}4517	// "Let start node equal node and let start offset equal offset."4518	var startNode = node;4519	var startOffset = offset;4520	// "Repeat the following steps:"4521	while (true) {4522		// "If start node has a child in the same editing host with index start4523		// offset minus one, set start node to that child, then set start4524		// offset to start node's length."4525		if (0 <= startOffset - 14526		&& inSameEditingHost(startNode, startNode.childNodes[startOffset - 1])) {4527			startNode = startNode.childNodes[startOffset - 1];4528			startOffset = getNodeLength(startNode);4529		// "Otherwise, if start offset is zero and start node does not follow a4530		// line break and start node's parent is in the same editing host, set4531		// start offset to start node's index, then set start node to its4532		// parent."4533		} else if (startOffset == 04534		&& !followsLineBreak(startNode)4535		&& inSameEditingHost(startNode, startNode.parentNode)) {4536			startOffset = getNodeIndex(startNode);4537			startNode = startNode.parentNode;4538		// "Otherwise, if start node is a Text node and its parent's resolved4539		// value for "white-space" is neither "pre" nor "pre-wrap" and start4540		// offset is not zero and the (start offset Ã¢Ëâ 1)st element of start4541		// node's data is a space (0x0020) or non-breaking space (0x00A0),4542		// subtract one from start offset."4543		} else if (startNode.nodeType == Node.TEXT_NODE4544		&& ["pre", "pre-wrap"].indexOf(getComputedStyle(startNode.parentNode).whiteSpace) == -14545		&& startOffset != 04546		&& /[ \xa0]/.test(startNode.data[startOffset - 1])) {4547			startOffset--;4548		// "Otherwise, break from this loop."4549		} else {4550			break;4551		}4552	}4553	// "Let end node equal start node and end offset equal start offset."4554	var endNode = startNode;4555	var endOffset = startOffset;4556	// "Let length equal zero."4557	var length = 0;4558	// "Let collapse spaces be true if start offset is zero and start node4559	// follows a line break, otherwise false."4560	var collapseSpaces = startOffset == 0 && followsLineBreak(startNode);4561	// "Repeat the following steps:"4562	while (true) {4563		// "If end node has a child in the same editing host with index end4564		// offset, set end node to that child, then set end offset to zero."4565		if (endOffset < endNode.childNodes.length4566		&& inSameEditingHost(endNode, endNode.childNodes[endOffset])) {4567			endNode = endNode.childNodes[endOffset];4568			endOffset = 0;4569		// "Otherwise, if end offset is end node's length and end node does not4570		// precede a line break and end node's parent is in the same editing4571		// host, set end offset to one plus end node's index, then set end node4572		// to its parent."4573		} else if (endOffset == getNodeLength(endNode)4574		&& !precedesLineBreak(endNode)4575		&& inSameEditingHost(endNode, endNode.parentNode)) {4576			endOffset = 1 + getNodeIndex(endNode);4577			endNode = endNode.parentNode;4578		// "Otherwise, if end node is a Text node and its parent's resolved4579		// value for "white-space" is neither "pre" nor "pre-wrap" and end4580		// offset is not end node's length and the end offsetth element of4581		// end node's data is a space (0x0020) or non-breaking space (0x00A0):"4582		} else if (endNode.nodeType == Node.TEXT_NODE4583		&& ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14584		&& endOffset != getNodeLength(endNode)4585		&& /[ \xa0]/.test(endNode.data[endOffset])) {4586			// "If fix collapsed space is true, and collapse spaces is true,4587			// and the end offsetth code unit of end node's data is a space4588			// (0x0020): call deleteData(end offset, 1) on end node, then4589			// continue this loop from the beginning."4590			if (fixCollapsedSpace4591			&& collapseSpaces4592			&& " " == endNode.data[endOffset]) {4593				endNode.deleteData(endOffset, 1);4594				continue;4595			}4596			// "Set collapse spaces to true if the end offsetth element of end4597			// node's data is a space (0x0020), false otherwise."4598			collapseSpaces = " " == endNode.data[endOffset];4599			// "Add one to end offset."4600			endOffset++;4601			// "Add one to length."4602			length++;4603		// "Otherwise, break from this loop."4604		} else {4605			break;4606		}4607	}4608	// "If fix collapsed space is true, then while (start node, start offset)4609	// is before (end node, end offset):"4610	if (fixCollapsedSpace) {4611		while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4612			// "If end node has a child in the same editing host with index end4613			// offset Ã¢Ëâ 1, set end node to that child, then set end offset to end4614			// node's length."4615			if (0 <= endOffset - 14616			&& endOffset - 1 < endNode.childNodes.length4617			&& inSameEditingHost(endNode, endNode.childNodes[endOffset - 1])) {4618				endNode = endNode.childNodes[endOffset - 1];4619				endOffset = getNodeLength(endNode);4620			// "Otherwise, if end offset is zero and end node's parent is in the4621			// same editing host, set end offset to end node's index, then set end4622			// node to its parent."4623			} else if (endOffset == 04624			&& inSameEditingHost(endNode, endNode.parentNode)) {4625				endOffset = getNodeIndex(endNode);4626				endNode = endNode.parentNode;4627			// "Otherwise, if end node is a Text node and its parent's resolved4628			// value for "white-space" is neither "pre" nor "pre-wrap" and end4629			// offset is end node's length and the last code unit of end node's4630			// data is a space (0x0020) and end node precedes a line break:"4631			} else if (endNode.nodeType == Node.TEXT_NODE4632			&& ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14633			&& endOffset == getNodeLength(endNode)4634			&& endNode.data[endNode.data.length - 1] == " "4635			&& precedesLineBreak(endNode)) {4636				// "Subtract one from end offset."4637				endOffset--;4638				// "Subtract one from length."4639				length--;4640				// "Call deleteData(end offset, 1) on end node."4641				endNode.deleteData(endOffset, 1);4642			// "Otherwise, break from this loop."4643			} else {4644				break;4645			}4646		}4647	}4648	// "Let replacement whitespace be the canonical space sequence of length4649	// length. non-breaking start is true if start offset is zero and start4650	// node follows a line break, and false otherwise. non-breaking end is true4651	// if end offset is end node's length and end node precedes a line break,4652	// and false otherwise."4653	var replacementWhitespace = canonicalSpaceSequence(length,4654		startOffset == 0 && followsLineBreak(startNode),4655		endOffset == getNodeLength(endNode) && precedesLineBreak(endNode));4656	// "While (start node, start offset) is before (end node, end offset):"4657	while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4658		// "If start node has a child with index start offset, set start node4659		// to that child, then set start offset to zero."4660		if (startOffset < startNode.childNodes.length) {4661			startNode = startNode.childNodes[startOffset];4662			startOffset = 0;4663		// "Otherwise, if start node is not a Text node or if start offset is4664		// start node's length, set start offset to one plus start node's4665		// index, then set start node to its parent."4666		} else if (startNode.nodeType != Node.TEXT_NODE4667		|| startOffset == getNodeLength(startNode)) {4668			startOffset = 1 + getNodeIndex(startNode);4669			startNode = startNode.parentNode;4670		// "Otherwise:"4671		} else {4672			// "Remove the first element from replacement whitespace, and let4673			// element be that element."4674			var element = replacementWhitespace[0];4675			replacementWhitespace = replacementWhitespace.slice(1);4676			// "If element is not the same as the start offsetth element of4677			// start node's data:"4678			if (element != startNode.data[startOffset]) {4679				// "Call insertData(start offset, element) on start node."4680				startNode.insertData(startOffset, element);4681				// "Call deleteData(start offset + 1, 1) on start node."4682				startNode.deleteData(startOffset + 1, 1);4683			}4684			// "Add one to start offset."4685			startOffset++;4686		}4687	}4688}4689//@}4690///// Indenting and outdenting /////4691//@{4692function indentNodes(nodeList) {4693	// "If node list is empty, do nothing and abort these steps."4694	if (!nodeList.length) {4695		return;4696	}4697	// "Let first node be the first member of node list."4698	var firstNode = nodeList[0];4699	// "If first node's parent is an ol or ul:"4700	if (isHtmlElement(firstNode.parentNode, ["OL", "UL"])) {4701		// "Let tag be the local name of the parent of first node."4702		var tag = firstNode.parentNode.tagName;4703		// "Wrap node list, with sibling criteria returning true for an HTML4704		// element with local name tag and false otherwise, and new parent4705		// instructions returning the result of calling createElement(tag) on4706		// the ownerDocument of first node."4707		wrap(nodeList,4708			function(node) { return isHtmlElement(node, tag) },4709			function() { return firstNode.ownerDocument.createElement(tag) });4710		// "Abort these steps."4711		return;4712	}4713	// "Wrap node list, with sibling criteria returning true for a simple4714	// indentation element and false otherwise, and new parent instructions4715	// returning the result of calling createElement("blockquote") on the4716	// ownerDocument of first node. Let new parent be the result."4717	var newParent = wrap(nodeList,4718		function(node) { return isSimpleIndentationElement(node) },4719		function() { return firstNode.ownerDocument.createElement("blockquote") });4720	// "Fix disallowed ancestors of new parent."4721	fixDisallowedAncestors(newParent);4722}4723function outdentNode(node) {4724	// "If node is not editable, abort these steps."4725	if (!isEditable(node)) {4726		return;4727	}4728	// "If node is a simple indentation element, remove node, preserving its4729	// descendants.  Then abort these steps."4730	if (isSimpleIndentationElement(node)) {4731		removePreservingDescendants(node);4732		return;4733	}4734	// "If node is an indentation element:"4735	if (isIndentationElement(node)) {4736		// "Unset the dir attribute of node, if any."4737		node.removeAttribute("dir");4738		// "Unset the margin, padding, and border CSS properties of node."4739		node.style.margin = "";4740		node.style.padding = "";4741		node.style.border = "";4742		if (node.getAttribute("style") == ""4743		// Crazy WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=685514744		|| node.getAttribute("style") == "border-width: initial; border-color: initial; ") {4745			node.removeAttribute("style");4746		}4747		// "Set the tag name of node to "div"."4748		setTagName(node, "div");4749		// "Abort these steps."4750		return;4751	}4752	// "Let current ancestor be node's parent."4753	var currentAncestor = node.parentNode;4754	// "Let ancestor list be a list of nodes, initially empty."4755	var ancestorList = [];4756	// "While current ancestor is an editable Element that is neither a simple4757	// indentation element nor an ol nor a ul, append current ancestor to4758	// ancestor list and then set current ancestor to its parent."4759	while (isEditable(currentAncestor)4760	&& currentAncestor.nodeType == Node.ELEMENT_NODE4761	&& !isSimpleIndentationElement(currentAncestor)4762	&& !isHtmlElement(currentAncestor, ["ol", "ul"])) {4763		ancestorList.push(currentAncestor);4764		currentAncestor = currentAncestor.parentNode;4765	}4766	// "If current ancestor is not an editable simple indentation element:"4767	if (!isEditable(currentAncestor)4768	|| !isSimpleIndentationElement(currentAncestor)) {4769		// "Let current ancestor be node's parent."4770		currentAncestor = node.parentNode;4771		// "Let ancestor list be the empty list."4772		ancestorList = [];4773		// "While current ancestor is an editable Element that is neither an4774		// indentation element nor an ol nor a ul, append current ancestor to4775		// ancestor list and then set current ancestor to its parent."4776		while (isEditable(currentAncestor)4777		&& currentAncestor.nodeType == Node.ELEMENT_NODE4778		&& !isIndentationElement(currentAncestor)4779		&& !isHtmlElement(currentAncestor, ["ol", "ul"])) {4780			ancestorList.push(currentAncestor);4781			currentAncestor = currentAncestor.parentNode;4782		}4783	}4784	// "If node is an ol or ul and current ancestor is not an editable4785	// indentation element:"4786	if (isHtmlElement(node, ["OL", "UL"])4787	&& (!isEditable(currentAncestor)4788	|| !isIndentationElement(currentAncestor))) {4789		// "Unset the reversed, start, and type attributes of node, if any are4790		// set."4791		node.removeAttribute("reversed");4792		node.removeAttribute("start");4793		node.removeAttribute("type");4794		// "Let children be the children of node."4795		var children = [].slice.call(node.childNodes);4796		// "If node has attributes, and its parent is not an ol or ul, set the4797		// tag name of node to "div"."4798		if (node.attributes.length4799		&& !isHtmlElement(node.parentNode, ["OL", "UL"])) {4800			setTagName(node, "div");4801		// "Otherwise:"4802		} else {4803			// "Record the values of node's children, and let values be the4804			// result."4805			var values = recordValues([].slice.call(node.childNodes));4806			// "Remove node, preserving its descendants."4807			removePreservingDescendants(node);4808			// "Restore the values from values."4809			restoreValues(values);4810		}4811		// "Fix disallowed ancestors of each member of children."4812		for (var i = 0; i < children.length; i++) {4813			fixDisallowedAncestors(children[i]);4814		}4815		// "Abort these steps."4816		return;4817	}4818	// "If current ancestor is not an editable indentation element, abort these4819	// steps."4820	if (!isEditable(currentAncestor)4821	|| !isIndentationElement(currentAncestor)) {4822		return;4823	}4824	// "Append current ancestor to ancestor list."4825	ancestorList.push(currentAncestor);4826	// "Let original ancestor be current ancestor."4827	var originalAncestor = currentAncestor;4828	// "While ancestor list is not empty:"4829	while (ancestorList.length) {4830		// "Let current ancestor be the last member of ancestor list."4831		//4832		// "Remove the last member of ancestor list."4833		currentAncestor = ancestorList.pop();4834		// "Let target be the child of current ancestor that is equal to either4835		// node or the last member of ancestor list."4836		var target = node.parentNode == currentAncestor4837			? node4838			: ancestorList[ancestorList.length - 1];4839		// "If target is an inline node that is not a br, and its nextSibling4840		// is a br, remove target's nextSibling from its parent."4841		if (isInlineNode(target)4842		&& !isHtmlElement(target, "BR")4843		&& isHtmlElement(target.nextSibling, "BR")) {4844			target.parentNode.removeChild(target.nextSibling);4845		}4846		// "Let preceding siblings be the preceding siblings of target, and let4847		// following siblings be the following siblings of target."4848		var precedingSiblings = [].slice.call(currentAncestor.childNodes, 0, getNodeIndex(target));4849		var followingSiblings = [].slice.call(currentAncestor.childNodes, 1 + getNodeIndex(target));4850		// "Indent preceding siblings."4851		indentNodes(precedingSiblings);4852		// "Indent following siblings."4853		indentNodes(followingSiblings);4854	}4855	// "Outdent original ancestor."4856	outdentNode(originalAncestor);4857}4858//@}4859///// Toggling lists /////4860//@{4861function toggleLists(tagName) {4862	// "Record current overrides, and let overrides be the result."4863	var overrides = recordCurrentOverrides();4864	// "Let mode be "disable" if the selection's list state is tag name, and4865	// "enable" otherwise."4866	var mode = getSelectionListState() == tagName ? "disable" : "enable";4867	var range = getActiveRange();4868	tagName = tagName.toUpperCase();4869	// "Let other tag name be "ol" if tag name is "ul", and "ul" if tag name is4870	// "ol"."4871	var otherTagName = tagName == "OL" ? "UL" : "OL";4872	// "Let items be a list of all lis that are ancestor containers of the4873	// range's start and/or end node."4874	//4875	// It's annoying to get this in tree order using functional stuff without4876	// doing getDescendants(document), which is slow, so I do it imperatively.4877	var items = [];4878	(function(){4879		for (4880			var ancestorContainer = range.endContainer;4881			ancestorContainer != range.commonAncestorContainer;4882			ancestorContainer = ancestorContainer.parentNode4883		) {4884			if (isHtmlElement(ancestorContainer, "li")) {4885				items.unshift(ancestorContainer);4886			}4887		}4888		for (4889			var ancestorContainer = range.startContainer;4890			ancestorContainer;4891			ancestorContainer = ancestorContainer.parentNode4892		) {4893			if (isHtmlElement(ancestorContainer, "li")) {4894				items.unshift(ancestorContainer);4895			}4896		}4897	})();4898	// "For each item in items, normalize sublists of item."4899	items.forEach(normalizeSublists);4900	// "Block-extend the range, and let new range be the result."4901	var newRange = blockExtend(range);4902	// "If mode is "enable", then let lists to convert consist of every4903	// editable HTML element with local name other tag name that is contained4904	// in new range, and for every list in lists to convert:"4905	if (mode == "enable") {4906		getAllContainedNodes(newRange, function(node) {4907			return isEditable(node)4908				&& isHtmlElement(node, otherTagName);4909		}).forEach(function(list) {4910			// "If list's previousSibling or nextSibling is an editable HTML4911			// element with local name tag name:"4912			if ((isEditable(list.previousSibling) && isHtmlElement(list.previousSibling, tagName))4913			|| (isEditable(list.nextSibling) && isHtmlElement(list.nextSibling, tagName))) {4914				// "Let children be list's children."4915				var children = [].slice.call(list.childNodes);4916				// "Record the values of children, and let values be the4917				// result."4918				var values = recordValues(children);4919				// "Split the parent of children."4920				splitParent(children);4921				// "Wrap children, with sibling criteria returning true for an4922				// HTML element with local name tag name and false otherwise."4923				wrap(children, function(node) { return isHtmlElement(node, tagName) });4924				// "Restore the values from values."4925				restoreValues(values);4926			// "Otherwise, set the tag name of list to tag name."4927			} else {4928				setTagName(list, tagName);4929			}4930		});4931	}4932	// "Let node list be a list of nodes, initially empty."4933	//4934	// "For each node node contained in new range, if node is editable; the4935	// last member of node list (if any) is not an ancestor of node; node4936	// is not an indentation element; and either node is an ol or ul, or its4937	// parent is an ol or ul, or it is an allowed child of "li"; then append4938	// node to node list."4939	var nodeList = getContainedNodes(newRange, function(node) {4940		return isEditable(node)4941		&& !isIndentationElement(node)4942		&& (isHtmlElement(node, ["OL", "UL"])4943		|| isHtmlElement(node.parentNode, ["OL", "UL"])4944		|| isAllowedChild(node, "li"));4945	});4946	// "If mode is "enable", remove from node list any ol or ul whose parent is4947	// not also an ol or ul."4948	if (mode == "enable") {4949		nodeList = nodeList.filter(function(node) {4950			return !isHtmlElement(node, ["ol", "ul"])4951				|| isHtmlElement(node.parentNode, ["ol", "ul"]);4952		});4953	}4954	// "If mode is "disable", then while node list is not empty:"4955	if (mode == "disable") {4956		while (nodeList.length) {4957			// "Let sublist be an empty list of nodes."4958			var sublist = [];4959			// "Remove the first member from node list and append it to4960			// sublist."4961			sublist.push(nodeList.shift());4962			// "If the first member of sublist is an HTML element with local4963			// name tag name, outdent it and continue this loop from the4964			// beginning."4965			if (isHtmlElement(sublist[0], tagName)) {4966				outdentNode(sublist[0]);4967				continue;4968			}4969			// "While node list is not empty, and the first member of node list4970			// is the nextSibling of the last member of sublist and is not an4971			// HTML element with local name tag name, remove the first member4972			// from node list and append it to sublist."4973			while (nodeList.length4974			&& nodeList[0] == sublist[sublist.length - 1].nextSibling4975			&& !isHtmlElement(nodeList[0], tagName)) {4976				sublist.push(nodeList.shift());4977			}4978			// "Record the values of sublist, and let values be the result."4979			var values = recordValues(sublist);4980			// "Split the parent of sublist."4981			splitParent(sublist);4982			// "Fix disallowed ancestors of each member of sublist."4983			for (var i = 0; i < sublist.length; i++) {4984				fixDisallowedAncestors(sublist[i]);4985			}4986			// "Restore the values from values."4987			restoreValues(values);4988		}4989	// "Otherwise, while node list is not empty:"4990	} else {4991		while (nodeList.length) {4992			// "Let sublist be an empty list of nodes."4993			var sublist = [];4994			// "While either sublist is empty, or node list is not empty and4995			// its first member is the nextSibling of sublist's last member:"4996			while (!sublist.length4997			|| (nodeList.length4998			&& nodeList[0] == sublist[sublist.length - 1].nextSibling)) {4999				// "If node list's first member is a p or div, set the tag name5000				// of node list's first member to "li", and append the result5001				// to sublist. Remove the first member from node list."5002				if (isHtmlElement(nodeList[0], ["p", "div"])) {5003					sublist.push(setTagName(nodeList[0], "li"));5004					nodeList.shift();5005				// "Otherwise, if the first member of node list is an li or ol5006				// or ul, remove it from node list and append it to sublist."5007				} else if (isHtmlElement(nodeList[0], ["li", "ol", "ul"])) {5008					sublist.push(nodeList.shift());5009				// "Otherwise:"5010				} else {5011					// "Let nodes to wrap be a list of nodes, initially empty."5012					var nodesToWrap = [];5013					// "While nodes to wrap is empty, or node list is not empty5014					// and its first member is the nextSibling of nodes to5015					// wrap's last member and the first member of node list is5016					// an inline node and the last member of nodes to wrap is5017					// an inline node other than a br, remove the first member5018					// from node list and append it to nodes to wrap."5019					while (!nodesToWrap.length5020					|| (nodeList.length5021					&& nodeList[0] == nodesToWrap[nodesToWrap.length - 1].nextSibling5022					&& isInlineNode(nodeList[0])5023					&& isInlineNode(nodesToWrap[nodesToWrap.length - 1])5024					&& !isHtmlElement(nodesToWrap[nodesToWrap.length - 1], "br"))) {5025						nodesToWrap.push(nodeList.shift());5026					}5027					// "Wrap nodes to wrap, with new parent instructions5028					// returning the result of calling createElement("li") on5029					// the context object. Append the result to sublist."5030					sublist.push(wrap(nodesToWrap,5031						undefined,5032						function() { return document.createElement("li") }));5033				}5034			}5035			// "If sublist's first member's parent is an HTML element with5036			// local name tag name, or if every member of sublist is an ol or5037			// ul, continue this loop from the beginning."5038			if (isHtmlElement(sublist[0].parentNode, tagName)5039			|| sublist.every(function(node) { return isHtmlElement(node, ["ol", "ul"]) })) {5040				continue;5041			}5042			// "If sublist's first member's parent is an HTML element with5043			// local name other tag name:"5044			if (isHtmlElement(sublist[0].parentNode, otherTagName)) {5045				// "Record the values of sublist, and let values be the5046				// result."5047				var values = recordValues(sublist);5048				// "Split the parent of sublist."5049				splitParent(sublist);5050				// "Wrap sublist, with sibling criteria returning true for an5051				// HTML element with local name tag name and false otherwise,5052				// and new parent instructions returning the result of calling5053				// createElement(tag name) on the context object."5054				wrap(sublist,5055					function(node) { return isHtmlElement(node, tagName) },5056					function() { return document.createElement(tagName) });5057				// "Restore the values from values."5058				restoreValues(values);5059				// "Continue this loop from the beginning."5060				continue;5061			}5062			// "Wrap sublist, with sibling criteria returning true for an HTML5063			// element with local name tag name and false otherwise, and new5064			// parent instructions being the following:"5065			// . . .5066			// "Fix disallowed ancestors of the previous step's result."5067			fixDisallowedAncestors(wrap(sublist,5068				function(node) { return isHtmlElement(node, tagName) },5069				function() {5070					// "If sublist's first member's parent is not an editable5071					// simple indentation element, or sublist's first member's5072					// parent's previousSibling is not an editable HTML element5073					// with local name tag name, call createElement(tag name)5074					// on the context object and return the result."5075					if (!isEditable(sublist[0].parentNode)5076					|| !isSimpleIndentationElement(sublist[0].parentNode)5077					|| !isEditable(sublist[0].parentNode.previousSibling)5078					|| !isHtmlElement(sublist[0].parentNode.previousSibling, tagName)) {5079						return document.createElement(tagName);5080					}5081					// "Let list be sublist's first member's parent's5082					// previousSibling."5083					var list = sublist[0].parentNode.previousSibling;5084					// "Normalize sublists of list's lastChild."5085					normalizeSublists(list.lastChild);5086					// "If list's lastChild is not an editable HTML element5087					// with local name tag name, call createElement(tag name)5088					// on the context object, and append the result as the last5089					// child of list."5090					if (!isEditable(list.lastChild)5091					|| !isHtmlElement(list.lastChild, tagName)) {5092						list.appendChild(document.createElement(tagName));5093					}5094					// "Return the last child of list."5095					return list.lastChild;5096				}5097			));5098		}5099	}5100	// "Restore states and values from overrides."5101	restoreStatesAndValues(overrides);5102}5103//@}5104///// Justifying the selection /////5105//@{5106function justifySelection(alignment) {5107	// "Record current overrides, and let overrides be the result."5108	var overrides = recordCurrentOverrides();5109	// "Block-extend the active range, and let new range be the result."5110	var newRange = blockExtend(globalRange);5111	// "Let element list be a list of all editable Elements contained in new5112	// range that either has an attribute in the HTML namespace whose local5113	// name is "align", or has a style attribute that sets "text-align", or is5114	// a center."5115	var elementList = getAllContainedNodes(newRange, function(node) {5116		return node.nodeType == Node.ELEMENT_NODE5117			&& isEditable(node)5118			// Ignoring namespaces here5119			&& (5120				node.hasAttribute("align")5121				|| node.style.textAlign != ""5122				|| isHtmlElement(node, "center")5123			);5124	});5125	// "For each element in element list:"5126	for (var i = 0; i < elementList.length; i++) {5127		var element = elementList[i];5128		// "If element has an attribute in the HTML namespace whose local name5129		// is "align", remove that attribute."5130		element.removeAttribute("align");5131		// "Unset the CSS property "text-align" on element, if it's set by a5132		// style attribute."5133		element.style.textAlign = "";5134		if (element.getAttribute("style") == "") {5135			element.removeAttribute("style");5136		}5137		// "If element is a div or span or center with no attributes, remove5138		// it, preserving its descendants."5139		if (isHtmlElement(element, ["div", "span", "center"])5140		&& !element.attributes.length) {5141			removePreservingDescendants(element);5142		}5143		// "If element is a center with one or more attributes, set the tag5144		// name of element to "div"."5145		if (isHtmlElement(element, "center")5146		&& element.attributes.length) {5147			setTagName(element, "div");5148		}5149	}5150	// "Block-extend the active range, and let new range be the result."5151	newRange = blockExtend(globalRange);5152	// "Let node list be a list of nodes, initially empty."5153	var nodeList = [];5154	// "For each node node contained in new range, append node to node list if5155	// the last member of node list (if any) is not an ancestor of node; node5156	// is editable; node is an allowed child of "div"; and node's alignment5157	// value is not alignment."5158	nodeList = getContainedNodes(newRange, function(node) {5159		return isEditable(node)5160			&& isAllowedChild(node, "div")5161			&& getAlignmentValue(node) != alignment;5162	});5163	// "While node list is not empty:"5164	while (nodeList.length) {5165		// "Let sublist be a list of nodes, initially empty."5166		var sublist = [];5167		// "Remove the first member of node list and append it to sublist."5168		sublist.push(nodeList.shift());5169		// "While node list is not empty, and the first member of node list is5170		// the nextSibling of the last member of sublist, remove the first5171		// member of node list and append it to sublist."5172		while (nodeList.length5173		&& nodeList[0] == sublist[sublist.length - 1].nextSibling) {5174			sublist.push(nodeList.shift());5175		}5176		// "Wrap sublist. Sibling criteria returns true for any div that has5177		// one or both of the following two attributes and no other attributes,5178		// and false otherwise:"5179		//5180		//   * "An align attribute whose value is an ASCII case-insensitive5181		//     match for alignment.5182		//   * "A style attribute which sets exactly one CSS property5183		//     (including unrecognized or invalid attributes), which is5184		//     "text-align", which is set to alignment.5185		//5186		// "New parent instructions are to call createElement("div") on the5187		// context object, then set its CSS property "text-align" to alignment5188		// and return the result."5189		wrap(sublist,5190			function(node) {5191				return isHtmlElement(node, "div")5192					&& [].every.call(node.attributes, function(attr) {5193						return (attr.name == "align" && attr.value.toLowerCase() == alignment)5194							|| (attr.name == "style" && node.style.length == 1 && node.style.textAlign == alignment);5195					});5196			},5197			function() {5198				var newParent = document.createElement("div");5199				newParent.setAttribute("style", "text-align: " + alignment);5200				return newParent;5201			}5202		);5203	}5204	// "Restore states and values from overrides."5205	restoreStatesAndValues(overrides);5206}5207//@}5208///// Automatic linking /////5209//@{5210// "An autolinkable URL is a string of the following form:"5211var autolinkableUrlRegexp =5212	// "Either a string matching the scheme pattern from RFC 3986 section 3.15213	// followed by the literal string ://, or the literal string mailto:;5214	// followed by"5215	//5216	// From the RFC: scheme      = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )5217	"([a-zA-Z][a-zA-Z0-9+.-]*://|mailto:)"5218	// "Zero or more characters other than space characters; followed by"5219	+ "[^ \t\n\f\r]*"5220	// "A character that is not one of the ASCII characters !"'(),-.:;<>[]`{}."5221	+ "[^!\"'(),\\-.:;<>[\\]`{}]";5222// "A valid e-mail address is a string that matches the ABNF production 1*(5223// atext / "." ) "@" ldh-str *( "." ldh-str ) where atext is defined in RFC5224// 5322 section 3.2.3, and ldh-str is defined in RFC 1034 section 3.5."5225//5226// atext: ALPHA / DIGIT / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" /5227// "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~"5228//5229//<ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>5230//<let-dig-hyp> ::= <let-dig> | "-"5231//<let-dig> ::= <letter> | <digit>5232var validEmailRegexp =5233	"[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~.]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*";5234function autolink(node, endOffset) {5235	// "While (node, end offset)'s previous equivalent point is not null, set5236	// it to its previous equivalent point."5237	while (getPreviousEquivalentPoint(node, endOffset)) {5238		var prev = getPreviousEquivalentPoint(node, endOffset);5239		node = prev[0];5240		endOffset = prev[1];5241	}5242	// "If node is not a Text node, or has an a ancestor, do nothing and abort5243	// these steps."5244	if (node.nodeType != Node.TEXT_NODE5245	|| getAncestors(node).some(function(ancestor) { return isHtmlElement(ancestor, "a") })) {5246		return;5247	}5248	// "Let search be the largest substring of node's data whose end is end5249	// offset and that contains no space characters."5250	var search = /[^ \t\n\f\r]*$/.exec(node.substringData(0, endOffset))[0];5251	// "If some substring of search is an autolinkable URL:"5252	if (new RegExp(autolinkableUrlRegexp).test(search)) {...

implementation.js

Source:implementation.js

...3251	}3252	3253	return null;3254}3255function getPreviousEquivalentPoint(node, offset) {3256	3257	if (getNodeLength(node) == 0) {3258		return null;3259	}3260	3261	3262	if (offset == 03263	&& node.parentNode3264	&& isInlineNode(node)) {3265		return [node.parentNode, getNodeIndex(node)];3266	}3267	3268	3269	3270	if (0 <= offset - 13271	&& offset - 1 < node.childNodes.length3272	&& getNodeLength(node.childNodes[offset - 1]) != 03273	&& isInlineNode(node.childNodes[offset - 1])) {3274		return [node.childNodes[offset - 1], getNodeLength(node.childNodes[offset - 1])];3275	}3276	3277	return null;3278}3279function getFirstEquivalentPoint(node, offset) {3280	3281	3282	var prev;3283	while (prev = getPreviousEquivalentPoint(node, offset)) {3284		node = prev[0];3285		offset = prev[1];3286	}3287	3288	return [node, offset];3289}3290function getLastEquivalentPoint(node, offset) {3291	3292	3293	var next;3294	while (next = getNextEquivalentPoint(node, offset)) {3295		node = next[0];3296		offset = next[1];3297	}3298	3299	return [node, offset];3300}3301function isBlockStartPoint(node, offset) {3302	return (!node.parentNode && offset == 0)3303		|| (0 <= offset - 13304		&& offset - 1 < node.childNodes.length3305		&& isVisible(node.childNodes[offset - 1])3306		&& (isBlockNode(node.childNodes[offset - 1])3307		|| isHtmlElement(node.childNodes[offset - 1], "br")));3308}3309function isBlockEndPoint(node, offset) {3310	return (!node.parentNode && offset == getNodeLength(node))3311		|| (offset < node.childNodes.length3312		&& isVisible(node.childNodes[offset])3313		&& isBlockNode(node.childNodes[offset]));3314}3315function isBlockBoundaryPoint(node, offset) {3316	return isBlockStartPoint(node, offset)3317		|| isBlockEndPoint(node, offset);3318}3319function blockExtend(range) {3320	3321	3322	var startNode = range.startContainer;3323	var startOffset = range.startOffset;3324	var endNode = range.endContainer;3325	var endOffset = range.endOffset;3326	3327	3328	3329	var liAncestors = getAncestors(startNode).concat(startNode)3330		.filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3331		.slice(-1);3332	if (liAncestors.length) {3333		startOffset = getNodeIndex(liAncestors[0]);3334		startNode = liAncestors[0].parentNode;3335	}3336	3337	3338	if (!isBlockStartPoint(startNode, startOffset)) do {3339		3340		3341		if (startOffset == 0) {3342			startOffset = getNodeIndex(startNode);3343			startNode = startNode.parentNode;3344		3345		} else {3346			startOffset--;3347		}3348		3349		3350	} while (!isBlockBoundaryPoint(startNode, startOffset));3351	3352	3353	while (startOffset == 03354	&& startNode.parentNode) {3355		startOffset = getNodeIndex(startNode);3356		startNode = startNode.parentNode;3357	}3358	3359	3360	3361	var liAncestors = getAncestors(endNode).concat(endNode)3362		.filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3363		.slice(-1);3364	if (liAncestors.length) {3365		endOffset = 1 + getNodeIndex(liAncestors[0]);3366		endNode = liAncestors[0].parentNode;3367	}3368	3369	3370	if (!isBlockEndPoint(endNode, endOffset)) do {3371		3372		3373		if (endOffset == getNodeLength(endNode)) {3374			endOffset = 1 + getNodeIndex(endNode);3375			endNode = endNode.parentNode;3376		3377		} else {3378			endOffset++;3379		}3380		3381		3382	} while (!isBlockBoundaryPoint(endNode, endOffset));3383	3384	3385	3386	while (endOffset == getNodeLength(endNode)3387	&& endNode.parentNode) {3388		endOffset = 1 + getNodeIndex(endNode);3389		endNode = endNode.parentNode;3390	}3391	3392	3393	var newRange = startNode.ownerDocument.createRange();3394	newRange.setStart(startNode, startOffset);3395	newRange.setEnd(endNode, endOffset);3396	3397	return newRange;3398}3399function followsLineBreak(node) {3400	3401	var offset = 0;3402	3403	while (!isBlockBoundaryPoint(node, offset)) {3404		3405		3406		if (0 <= offset - 13407		&& offset - 1 < node.childNodes.length3408		&& isVisible(node.childNodes[offset - 1])) {3409			return false;3410		}3411		3412		3413		if (offset == 03414		|| !node.hasChildNodes()) {3415			offset = getNodeIndex(node);3416			node = node.parentNode;3417		3418		3419		} else {3420			node = node.childNodes[offset - 1];3421			offset = getNodeLength(node);3422		}3423	}3424	3425	return true;3426}3427function precedesLineBreak(node) {3428	3429	var offset = getNodeLength(node);3430	3431	while (!isBlockBoundaryPoint(node, offset)) {3432		3433		if (offset < node.childNodes.length3434		&& isVisible(node.childNodes[offset])) {3435			return false;3436		}3437		3438		3439		if (offset == getNodeLength(node)3440		|| !node.hasChildNodes()) {3441			offset = 1 + getNodeIndex(node);3442			node = node.parentNode;3443		3444		3445		} else {3446			node = node.childNodes[offset];3447			offset = 0;3448		}3449	}3450	3451	return true;3452}3453function recordCurrentOverrides() {3454	3455	3456	var overrides = [];3457	3458	3459	if (getValueOverride("createlink") !== undefined) {3460		overrides.push(["createlink", getValueOverride("createlink")]);3461	}3462	3463	3464	3465	3466	["bold", "italic", "strikethrough", "subscript", "superscript",3467	"underline"].forEach(function(command) {3468		if (getStateOverride(command) !== undefined) {3469			overrides.push([command, getStateOverride(command)]);3470		}3471	});3472	3473	3474	3475	["fontname", "fontsize", "forecolor",3476	"hilitecolor"].forEach(function(command) {3477		if (getValueOverride(command) !== undefined) {3478			overrides.push([command, getValueOverride(command)]);3479		}3480	});3481	3482	return overrides;3483}3484function recordCurrentStatesAndValues() {3485	3486	3487	var overrides = [];3488	3489	3490	var node = getAllEffectivelyContainedNodes(getActiveRange())3491		.filter(isFormattableNode)[0];3492	3493	if (!node) {3494		return overrides;3495	}3496	3497	3498	overrides.push(["createlink", getEffectiveCommandValue(node, "createlink")]);3499	3500	3501	3502	3503	3504	["bold", "italic", "strikethrough", "subscript", "superscript",3505	"underline"].forEach(function(command) {3506		if (commands[command].inlineCommandActivatedValues3507		.indexOf(getEffectiveCommandValue(node, command)) != -1) {3508			overrides.push([command, true]);3509		} else {3510			overrides.push([command, false]);3511		}3512	});3513	3514	3515	["fontname", "fontsize", "forecolor", "hilitecolor"].forEach(function(command) {3516		overrides.push([command, commands[command].value()]);3517	});3518	3519	3520	overrides.push(["fontsize", getEffectiveCommandValue(node, "fontsize")]);3521	3522	return overrides;3523}3524function restoreStatesAndValues(overrides) {3525	3526	3527	var node = getAllEffectivelyContainedNodes(getActiveRange())3528		.filter(isFormattableNode)[0];3529	3530	3531	if (node) {3532		for (var i = 0; i < overrides.length; i++) {3533			var command = overrides[i][0];3534			var override = overrides[i][1];3535			3536			3537			3538			if (typeof override == "boolean"3539			&& myQueryCommandState(command) != override) {3540				commands[command].action("");3541			3542			3543			3544			3545			} else if (typeof override == "string"3546			&& command != "createlink"3547			&& command != "fontsize"3548			&& !areEquivalentValues(command, myQueryCommandValue(command), override)) {3549				commands[command].action(override);3550			3551			3552			3553			3554			3555			3556			} else if (typeof override == "string"3557			&& command == "createlink"3558			&& (3559				(3560					getValueOverride("createlink") !== undefined3561					&& getValueOverride("createlink") !== override3562				) || (3563					getValueOverride("createlink") === undefined3564					&& getEffectiveCommandValue(node, "createlink") !== override3565				)3566			)) {3567				commands.createlink.action(override);3568			3569			3570			3571			3572			3573			} else if (typeof override == "string"3574			&& command == "fontsize"3575			&& (3576				(3577					getValueOverride("fontsize") !== undefined3578					&& getValueOverride("fontsize") !== override3579				) || (3580					getValueOverride("fontsize") === undefined3581					&& !areLooselyEquivalentValues(command, getEffectiveCommandValue(node, "fontsize"), override)3582				)3583			)) {3584				3585				3586				override = getLegacyFontSize(override);3587				3588				3589				commands.fontsize.action(override);3590			3591			} else {3592				continue;3593			}3594			3595			3596			node = getAllEffectivelyContainedNodes(getActiveRange())3597				.filter(isFormattableNode)[0]3598				|| node;3599		}3600	3601	} else {3602		for (var i = 0; i < overrides.length; i++) {3603			var command = overrides[i][0];3604			var override = overrides[i][1];3605			3606			3607			if (typeof override == "boolean") {3608				setStateOverride(command, override);3609			}3610			3611			3612			if (typeof override == "string") {3613				setValueOverride(command, override);3614			}3615		}3616	}3617}3618function deleteSelection(flags) {3619	if (flags === undefined) {3620		flags = {};3621	}3622	var blockMerging = "blockMerging" in flags ? Boolean(flags.blockMerging) : true;3623	var stripWrappers = "stripWrappers" in flags ? Boolean(flags.stripWrappers) : true;3624	var direction = "direction" in flags ? flags.direction : "forward";3625	3626	if (!getActiveRange()) {3627		return;3628	}3629	3630	canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);3631	3632	canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset);3633	3634	3635	var start = getLastEquivalentPoint(getActiveRange().startContainer, getActiveRange().startOffset);3636	var startNode = start[0];3637	var startOffset = start[1];3638	3639	3640	var end = getFirstEquivalentPoint(getActiveRange().endContainer, getActiveRange().endOffset);3641	var endNode = end[0];3642	var endOffset = end[1];3643	3644	if (getPosition(endNode, endOffset, startNode, startOffset) !== "after") {3645		3646		3647		3648		3649		3650		3651		3652		3653		3654		3655		if (direction == "forward") {3656			if (getSelection().rangeCount) {3657				getSelection().collapseToStart();3658			}3659			getActiveRange().collapse(true);3660		3661		} else {3662			getSelection().collapseToEnd();3663			getActiveRange().collapse(false);3664		}3665		3666		return;3667	}3668	3669	3670	if (startNode.nodeType == Node.TEXT_NODE3671	&& startOffset == 0) {3672		startOffset = getNodeIndex(startNode);3673		startNode = startNode.parentNode;3674	}3675	3676	3677	if (endNode.nodeType == Node.TEXT_NODE3678	&& endOffset == getNodeLength(endNode)) {3679		endOffset = 1 + getNodeIndex(endNode);3680		endNode = endNode.parentNode;3681	}3682	3683	3684	getSelection().collapse(startNode, startOffset);3685	getActiveRange().setStart(startNode, startOffset);3686	3687	getSelection().extend(endNode, endOffset);3688	getActiveRange().setEnd(endNode, endOffset);3689	3690	var startBlock = getActiveRange().startContainer;3691	3692	3693	while (inSameEditingHost(startBlock, startBlock.parentNode)3694	&& isInlineNode(startBlock)) {3695		startBlock = startBlock.parentNode;3696	}3697	3698	3699	3700	if ((!isBlockNode(startBlock) && !isEditingHost(startBlock))3701	|| !isAllowedChild("span", startBlock)3702	|| isHtmlElement(startBlock, ["td", "th"])) {3703		startBlock = null;3704	}3705	3706	var endBlock = getActiveRange().endContainer;3707	3708	3709	while (inSameEditingHost(endBlock, endBlock.parentNode)3710	&& isInlineNode(endBlock)) {3711		endBlock = endBlock.parentNode;3712	}3713	3714	3715	3716	if ((!isBlockNode(endBlock) && !isEditingHost(endBlock))3717	|| !isAllowedChild("span", endBlock)3718	|| isHtmlElement(endBlock, ["td", "th"])) {3719		endBlock = null;3720	}3721	3722	var overrides = recordCurrentStatesAndValues();3723	3724	3725	if (startNode == endNode3726	&& isEditable(startNode)3727	&& startNode.nodeType == Node.TEXT_NODE) {3728		3729		3730		startNode.deleteData(startOffset, endOffset - startOffset);3731		3732		3733		canonicalizeWhitespace(startNode, startOffset, false);3734		3735		3736		if (direction == "forward") {3737			if (getSelection().rangeCount) {3738				getSelection().collapseToStart();3739			}3740			getActiveRange().collapse(true);3741		3742		} else {3743			getSelection().collapseToEnd();3744			getActiveRange().collapse(false);3745		}3746		3747		restoreStatesAndValues(overrides);3748		3749		return;3750	}3751	3752	3753	3754	if (isEditable(startNode)3755	&& startNode.nodeType == Node.TEXT_NODE) {3756		startNode.deleteData(startOffset, getNodeLength(startNode) - startOffset);3757	}3758	3759	3760	3761	3762	3763	var nodeList = getContainedNodes(getActiveRange(),3764		function(node) {3765			return isEditable(node)3766				&& !isHtmlElement(node, ["thead", "tbody", "tfoot", "tr", "th", "td"]);3767		}3768	);3769	3770	for (var i = 0; i < nodeList.length; i++) {3771		var node = nodeList[i];3772		3773		var parent_ = node.parentNode;3774		3775		parent_.removeChild(node);3776		3777		3778		3779		if (![].some.call(getBlockNodeOf(parent_).childNodes, isVisible)3780		&& (isEditable(parent_) || isEditingHost(parent_))) {3781			parent_.appendChild(document.createElement("br"));3782		}3783		3784		3785		3786		3787		if (stripWrappers3788		|| (!isAncestor(parent_, startNode) && parent_ != startNode)) {3789			while (isEditable(parent_)3790			&& isInlineNode(parent_)3791			&& getNodeLength(parent_) == 0) {3792				var grandparent = parent_.parentNode;3793				grandparent.removeChild(parent_);3794				parent_ = grandparent;3795			}3796		}3797	}3798	3799	3800	if (isEditable(endNode)3801	&& endNode.nodeType == Node.TEXT_NODE) {3802		endNode.deleteData(0, endOffset);3803	}3804	3805	3806	canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);3807	3808	3809	canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);3810	3811	3812	3813	if (!blockMerging3814	|| !startBlock3815	|| !endBlock3816	|| !inSameEditingHost(startBlock, endBlock)3817	|| startBlock == endBlock) {3818		3819		3820		if (direction == "forward") {3821			if (getSelection().rangeCount) {3822				getSelection().collapseToStart();3823			}3824			getActiveRange().collapse(true);3825		3826		} else {3827			if (getSelection().rangeCount) {3828				getSelection().collapseToEnd();3829			}3830			getActiveRange().collapse(false);3831		}3832		3833		restoreStatesAndValues(overrides);3834		3835		return;3836	}3837	3838	3839	if (startBlock.children.length == 13840	&& isCollapsedBlockProp(startBlock.firstChild)) {3841		startBlock.removeChild(startBlock.firstChild);3842	}3843	3844	if (isAncestor(startBlock, endBlock)) {3845		3846		var referenceNode = endBlock;3847		3848		3849		while (referenceNode.parentNode != startBlock) {3850			referenceNode = referenceNode.parentNode;3851		}3852		3853		3854		3855		getSelection().collapse(startBlock, getNodeIndex(referenceNode));3856		getActiveRange().setStart(startBlock, getNodeIndex(referenceNode));3857		getActiveRange().collapse(true);3858		3859		if (!endBlock.hasChildNodes()) {3860			3861			3862			3863			3864			while (isEditable(endBlock)3865			&& endBlock.parentNode.childNodes.length == 13866			&& endBlock.parentNode != startBlock) {3867				var parent_ = endBlock;3868				parent_.removeChild(endBlock);3869				endBlock = parent_;3870			}3871			3872			3873			3874			3875			if (isEditable(endBlock)3876			&& !isInlineNode(endBlock)3877			&& isInlineNode(endBlock.previousSibling)3878			&& isInlineNode(endBlock.nextSibling)) {3879				endBlock.parentNode.insertBefore(document.createElement("br"), endBlock.nextSibling);3880			}3881			3882			if (isEditable(endBlock)) {3883				endBlock.parentNode.removeChild(endBlock);3884			}3885			3886			restoreStatesAndValues(overrides);3887			3888			return;3889		}3890		3891		3892		if (!isInlineNode(endBlock.firstChild)) {3893			restoreStatesAndValues(overrides);3894			return;3895		}3896		3897		var children = [];3898		3899		children.push(endBlock.firstChild);3900		3901		3902		3903		while (!isHtmlElement(children[children.length - 1], "br")3904		&& isInlineNode(children[children.length - 1].nextSibling)) {3905			children.push(children[children.length - 1].nextSibling);3906		}3907		3908		var values = recordValues(children);3909		3910		3911		while (children[0].parentNode != startBlock) {3912			splitParent(children);3913		}3914		3915		3916		if (isEditable(children[0].previousSibling)3917		&& isHtmlElement(children[0].previousSibling, "br")) {3918			children[0].parentNode.removeChild(children[0].previousSibling);3919		}3920	3921	} else if (isDescendant(startBlock, endBlock)) {3922		3923		3924		getSelection().collapse(startBlock, getNodeLength(startBlock));3925		getActiveRange().setStart(startBlock, getNodeLength(startBlock));3926		getActiveRange().collapse(true);3927		3928		var referenceNode = startBlock;3929		3930		3931		while (referenceNode.parentNode != endBlock) {3932			referenceNode = referenceNode.parentNode;3933		}3934		3935		3936		if (isInlineNode(referenceNode.nextSibling)3937		&& isHtmlElement(startBlock.lastChild, "br")) {3938			startBlock.removeChild(startBlock.lastChild);3939		}3940		3941		var nodesToMove = [];3942		3943		3944		if (referenceNode.nextSibling3945		&& !isBlockNode(referenceNode.nextSibling)) {3946			nodesToMove.push(referenceNode.nextSibling);3947		}3948		3949		3950		3951		if (nodesToMove.length3952		&& !isHtmlElement(nodesToMove[nodesToMove.length - 1], "br")3953		&& nodesToMove[nodesToMove.length - 1].nextSibling3954		&& !isBlockNode(nodesToMove[nodesToMove.length - 1].nextSibling)) {3955			nodesToMove.push(nodesToMove[nodesToMove.length - 1].nextSibling);3956		}3957		3958		var values = recordValues(nodesToMove);3959		3960		3961		nodesToMove.forEach(function(node) {3962			movePreservingRanges(node, startBlock, -1);3963		});3964	3965	} else {3966		3967		3968		getSelection().collapse(startBlock, getNodeLength(startBlock));3969		getActiveRange().setStart(startBlock, getNodeLength(startBlock));3970		getActiveRange().collapse(true);3971		3972		3973		if (isInlineNode(endBlock.firstChild)3974		&& isHtmlElement(startBlock.lastChild, "br")) {3975			startBlock.removeChild(startBlock.lastChild);3976		}3977		3978		3979		var values = recordValues([].slice.call(endBlock.childNodes));3980		3981		3982		while (endBlock.hasChildNodes()) {3983			movePreservingRanges(endBlock.firstChild, startBlock, -1);3984		}3985		3986		3987		3988		while (!endBlock.hasChildNodes()) {3989			var parent_ = endBlock.parentNode;3990			parent_.removeChild(endBlock);3991			endBlock = parent_;3992		}3993	}3994	3995	var ancestor = startBlock;3996	3997	3998	3999	4000	while (getInclusiveAncestors(ancestor).some(function(node) {4001		return inSameEditingHost(ancestor, node)4002			&& (4003				(isHtmlElement(node, "ol") && isHtmlElement(node.nextSibling, "ol"))4004				|| (isHtmlElement(node, "ul") && isHtmlElement(node.nextSibling, "ul"))4005			) && inSameEditingHost(ancestor, node.nextSibling);4006	})) {4007		4008		4009		4010		while (!(4011			isHtmlElement(ancestor, "ol")4012			&& isHtmlElement(ancestor.nextSibling, "ol")4013			&& inSameEditingHost(ancestor, ancestor.nextSibling)4014		) && !(4015			isHtmlElement(ancestor, "ul")4016			&& isHtmlElement(ancestor.nextSibling, "ul")4017			&& inSameEditingHost(ancestor, ancestor.nextSibling)4018		)) {4019			ancestor = ancestor.parentNode;4020		}4021		4022		4023		4024		while (ancestor.nextSibling.hasChildNodes()) {4025			movePreservingRanges(ancestor.nextSibling.firstChild, ancestor, -1);4026		}4027		4028		ancestor.parentNode.removeChild(ancestor.nextSibling);4029	}4030	4031	restoreValues(values);4032	4033	4034	if (!startBlock.hasChildNodes()) {4035		startBlock.appendChild(document.createElement("br"));4036	}4037	4038	removeExtraneousLineBreaksAtTheEndOf(startBlock);4039	4040	restoreStatesAndValues(overrides);4041}4042function splitParent(nodeList) {4043	4044	var originalParent = nodeList[0].parentNode;4045	4046	4047	if (!isEditable(originalParent)4048	|| !originalParent.parentNode) {4049		return;4050	}4051	4052	4053	if (nodeList.indexOf(originalParent.firstChild) != -1) {4054		removeExtraneousLineBreaksBefore(originalParent);4055	}4056	4057	4058	4059	var followsLineBreak_ = nodeList.indexOf(originalParent.firstChild) != -14060		&& followsLineBreak(originalParent);4061	4062	4063	4064	var precedesLineBreak_ = nodeList.indexOf(originalParent.lastChild) != -14065		&& precedesLineBreak(originalParent);4066	4067	4068	if (nodeList.indexOf(originalParent.firstChild) == -14069	&& nodeList.indexOf(originalParent.lastChild) != -1) {4070		4071		4072		4073		for (var i = nodeList.length - 1; i >= 0; i--) {4074			movePreservingRanges(nodeList[i], originalParent.parentNode, 1 + getNodeIndex(originalParent));4075		}4076		4077		4078		4079		4080		if (precedesLineBreak_4081		&& !precedesLineBreak(nodeList[nodeList.length - 1])) {4082			nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4083		}4084		4085		removeExtraneousLineBreaksAtTheEndOf(originalParent);4086		4087		return;4088	}4089	4090	if (nodeList.indexOf(originalParent.firstChild) == -1) {4091		4092		4093		var clonedParent = originalParent.cloneNode(false);4094		4095		originalParent.removeAttribute("id");4096		4097		4098		originalParent.parentNode.insertBefore(clonedParent, originalParent);4099		4100		4101		4102		while (nodeList[0].previousSibling) {4103			movePreservingRanges(originalParent.firstChild, clonedParent, clonedParent.childNodes.length);4104		}4105	}4106	4107	4108	for (var i = 0; i < nodeList.length; i++) {4109		movePreservingRanges(nodeList[i], originalParent.parentNode, getNodeIndex(originalParent));4110	}4111	4112	4113	4114	if (followsLineBreak_4115	&& !followsLineBreak(nodeList[0])) {4116		nodeList[0].parentNode.insertBefore(document.createElement("br"), nodeList[0]);4117	}4118	4119	4120	4121	4122	if (isInlineNode(nodeList[nodeList.length - 1])4123	&& !isHtmlElement(nodeList[nodeList.length - 1], "br")4124	&& isHtmlElement(originalParent.firstChild, "br")4125	&& !isInlineNode(originalParent)) {4126		originalParent.removeChild(originalParent.firstChild);4127	}4128	4129	if (!originalParent.hasChildNodes()) {4130		4131		originalParent.parentNode.removeChild(originalParent);4132		4133		4134		4135		4136		if (precedesLineBreak_4137		&& !precedesLineBreak(nodeList[nodeList.length - 1])) {4138			nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4139		}4140	4141	} else {4142		removeExtraneousLineBreaksBefore(originalParent);4143	}4144	4145	4146	4147	if (!nodeList[nodeList.length - 1].nextSibling4148	&& nodeList[nodeList.length - 1].parentNode) {4149		removeExtraneousLineBreaksAtTheEndOf(nodeList[nodeList.length - 1].parentNode);4150	}4151}4152function removePreservingDescendants(node) {4153	if (node.hasChildNodes()) {4154		splitParent([].slice.call(node.childNodes));4155	} else {4156		node.parentNode.removeChild(node);4157	}4158}4159function canonicalSpaceSequence(n, nonBreakingStart, nonBreakingEnd) {4160	4161	if (n == 0) {4162		return "";4163	}4164	4165	4166	if (n == 1 && !nonBreakingStart && !nonBreakingEnd) {4167		return " ";4168	}4169	4170	if (n == 1) {4171		return "\xa0";4172	}4173	4174	var buffer = "";4175	4176	4177	var repeatedPair;4178	if (nonBreakingStart) {4179		repeatedPair = "\xa0 ";4180	} else {4181		repeatedPair = " \xa0";4182	}4183	4184	4185	while (n > 3) {4186		buffer += repeatedPair;4187		n -= 2;4188	}4189	4190	4191	if (n == 3) {4192		buffer +=4193			!nonBreakingStart && !nonBreakingEnd ? " \xa0 "4194			: nonBreakingStart && !nonBreakingEnd ? "\xa0\xa0 "4195			: !nonBreakingStart && nonBreakingEnd ? " \xa0\xa0"4196			: nonBreakingStart && nonBreakingEnd ? "\xa0 \xa0"4197			: "impossible";4198	4199	4200	} else {4201		buffer +=4202			!nonBreakingStart && !nonBreakingEnd ? "\xa0 "4203			: nonBreakingStart && !nonBreakingEnd ? "\xa0 "4204			: !nonBreakingStart && nonBreakingEnd ? " \xa0"4205			: nonBreakingStart && nonBreakingEnd ? "\xa0\xa0"4206			: "impossible";4207	}4208	4209	return buffer;4210}4211function canonicalizeWhitespace(node, offset, fixCollapsedSpace) {4212	if (fixCollapsedSpace === undefined) {4213		4214		4215		fixCollapsedSpace = true;4216	}4217	4218	if (!isEditable(node) && !isEditingHost(node)) {4219		return;4220	}4221	4222	var startNode = node;4223	var startOffset = offset;4224	4225	while (true) {4226		4227		4228		4229		if (0 <= startOffset - 14230		&& inSameEditingHost(startNode, startNode.childNodes[startOffset - 1])) {4231			startNode = startNode.childNodes[startOffset - 1];4232			startOffset = getNodeLength(startNode);4233		4234		4235		4236		4237		} else if (startOffset == 04238		&& !followsLineBreak(startNode)4239		&& inSameEditingHost(startNode, startNode.parentNode)) {4240			startOffset = getNodeIndex(startNode);4241			startNode = startNode.parentNode;4242		4243		4244		4245		4246		4247		} else if (startNode.nodeType == Node.TEXT_NODE4248		&& ["pre", "pre-wrap"].indexOf(getComputedStyle(startNode.parentNode).whiteSpace) == -14249		&& startOffset != 04250		&& /[ \xa0]/.test(startNode.data[startOffset - 1])) {4251			startOffset--;4252		4253		} else {4254			break;4255		}4256	}4257	4258	var endNode = startNode;4259	var endOffset = startOffset;4260	4261	var length = 0;4262	4263	4264	var collapseSpaces = startOffset == 0 && followsLineBreak(startNode);4265	4266	while (true) {4267		4268		4269		if (endOffset < endNode.childNodes.length4270		&& inSameEditingHost(endNode, endNode.childNodes[endOffset])) {4271			endNode = endNode.childNodes[endOffset];4272			endOffset = 0;4273		4274		4275		4276		4277		} else if (endOffset == getNodeLength(endNode)4278		&& !precedesLineBreak(endNode)4279		&& inSameEditingHost(endNode, endNode.parentNode)) {4280			endOffset = 1 + getNodeIndex(endNode);4281			endNode = endNode.parentNode;4282		4283		4284		4285		4286		} else if (endNode.nodeType == Node.TEXT_NODE4287		&& ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14288		&& endOffset != getNodeLength(endNode)4289		&& /[ \xa0]/.test(endNode.data[endOffset])) {4290			4291			4292			4293			4294			if (fixCollapsedSpace4295			&& collapseSpaces4296			&& " " == endNode.data[endOffset]) {4297				endNode.deleteData(endOffset, 1);4298				continue;4299			}4300			4301			4302			collapseSpaces = " " == endNode.data[endOffset];4303			4304			endOffset++;4305			4306			length++;4307		4308		} else {4309			break;4310		}4311	}4312	4313	4314	if (fixCollapsedSpace) {4315		while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4316			4317			4318			4319			if (0 <= endOffset - 14320			&& endOffset - 1 < endNode.childNodes.length4321			&& inSameEditingHost(endNode, endNode.childNodes[endOffset - 1])) {4322				endNode = endNode.childNodes[endOffset - 1];4323				endOffset = getNodeLength(endNode);4324			4325			4326			4327			} else if (endOffset == 04328			&& inSameEditingHost(endNode, endNode.parentNode)) {4329				endOffset = getNodeIndex(endNode);4330				endNode = endNode.parentNode;4331			4332			4333			4334			4335			} else if (endNode.nodeType == Node.TEXT_NODE4336			&& ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14337			&& endOffset == getNodeLength(endNode)4338			&& endNode.data[endNode.data.length - 1] == " "4339			&& precedesLineBreak(endNode)) {4340				4341				endOffset--;4342				4343				length--;4344				4345				endNode.deleteData(endOffset, 1);4346			4347			} else {4348				break;4349			}4350		}4351	}4352	4353	4354	4355	4356	4357	var replacementWhitespace = canonicalSpaceSequence(length,4358		startOffset == 0 && followsLineBreak(startNode),4359		endOffset == getNodeLength(endNode) && precedesLineBreak(endNode));4360	4361	while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4362		4363		4364		if (startOffset < startNode.childNodes.length) {4365			startNode = startNode.childNodes[startOffset];4366			startOffset = 0;4367		4368		4369		4370		} else if (startNode.nodeType != Node.TEXT_NODE4371		|| startOffset == getNodeLength(startNode)) {4372			startOffset = 1 + getNodeIndex(startNode);4373			startNode = startNode.parentNode;4374		4375		} else {4376			4377			4378			var element = replacementWhitespace[0];4379			replacementWhitespace = replacementWhitespace.slice(1);4380			4381			4382			if (element != startNode.data[startOffset]) {4383				4384				startNode.insertData(startOffset, element);4385				4386				startNode.deleteData(startOffset + 1, 1);4387			}4388			4389			startOffset++;4390		}4391	}4392}4393function indentNodes(nodeList) {4394	4395	if (!nodeList.length) {4396		return;4397	}4398	4399	var firstNode = nodeList[0];4400	4401	if (isHtmlElement(firstNode.parentNode, ["OL", "UL"])) {4402		4403		var tag = firstNode.parentNode.tagName;4404		4405		4406		4407		4408		wrap(nodeList,4409			function(node) { return isHtmlElement(node, tag) },4410			function() { return firstNode.ownerDocument.createElement(tag) });4411		4412		return;4413	}4414	4415	4416	4417	4418	var newParent = wrap(nodeList,4419		function(node) { return isSimpleIndentationElement(node) },4420		function() { return firstNode.ownerDocument.createElement("blockquote") });4421	4422	fixDisallowedAncestors(newParent);4423}4424function outdentNode(node) {4425	4426	if (!isEditable(node)) {4427		return;4428	}4429	4430	4431	if (isSimpleIndentationElement(node)) {4432		removePreservingDescendants(node);4433		return;4434	}4435	4436	if (isIndentationElement(node)) {4437		4438		node.removeAttribute("dir");4439		4440		node.style.margin = "";4441		node.style.padding = "";4442		node.style.border = "";4443		if (node.getAttribute("style") == ""4444		4445		|| node.getAttribute("style") == "border-width: initial; border-color: initial; ") {4446			node.removeAttribute("style");4447		}4448		4449		setTagName(node, "div");4450		4451		return;4452	}4453	4454	var currentAncestor = node.parentNode;4455	4456	var ancestorList = [];4457	4458	4459	4460	while (isEditable(currentAncestor)4461	&& currentAncestor.nodeType == Node.ELEMENT_NODE4462	&& !isSimpleIndentationElement(currentAncestor)4463	&& !isHtmlElement(currentAncestor, ["ol", "ul"])) {4464		ancestorList.push(currentAncestor);4465		currentAncestor = currentAncestor.parentNode;4466	}4467	4468	if (!isEditable(currentAncestor)4469	|| !isSimpleIndentationElement(currentAncestor)) {4470		4471		currentAncestor = node.parentNode;4472		4473		ancestorList = [];4474		4475		4476		4477		while (isEditable(currentAncestor)4478		&& currentAncestor.nodeType == Node.ELEMENT_NODE4479		&& !isIndentationElement(currentAncestor)4480		&& !isHtmlElement(currentAncestor, ["ol", "ul"])) {4481			ancestorList.push(currentAncestor);4482			currentAncestor = currentAncestor.parentNode;4483		}4484	}4485	4486	4487	if (isHtmlElement(node, ["OL", "UL"])4488	&& (!isEditable(currentAncestor)4489	|| !isIndentationElement(currentAncestor))) {4490		4491		4492		node.removeAttribute("reversed");4493		node.removeAttribute("start");4494		node.removeAttribute("type");4495		4496		var children = [].slice.call(node.childNodes);4497		4498		4499		if (node.attributes.length4500		&& !isHtmlElement(node.parentNode, ["OL", "UL"])) {4501			setTagName(node, "div");4502		4503		} else {4504			4505			4506			var values = recordValues([].slice.call(node.childNodes));4507			4508			removePreservingDescendants(node);4509			4510			restoreValues(values);4511		}4512		4513		for (var i = 0; i < children.length; i++) {4514			fixDisallowedAncestors(children[i]);4515		}4516		4517		return;4518	}4519	4520	4521	if (!isEditable(currentAncestor)4522	|| !isIndentationElement(currentAncestor)) {4523		return;4524	}4525	4526	ancestorList.push(currentAncestor);4527	4528	var originalAncestor = currentAncestor;4529	4530	while (ancestorList.length) {4531		4532		4533		4534		currentAncestor = ancestorList.pop();4535		4536		4537		var target = node.parentNode == currentAncestor4538			? node4539			: ancestorList[ancestorList.length - 1];4540		4541		4542		if (isInlineNode(target)4543		&& !isHtmlElement(target, "BR")4544		&& isHtmlElement(target.nextSibling, "BR")) {4545			target.parentNode.removeChild(target.nextSibling);4546		}4547		4548		4549		var precedingSiblings = [].slice.call(currentAncestor.childNodes, 0, getNodeIndex(target));4550		var followingSiblings = [].slice.call(currentAncestor.childNodes, 1 + getNodeIndex(target));4551		4552		indentNodes(precedingSiblings);4553		4554		indentNodes(followingSiblings);4555	}4556	4557	outdentNode(originalAncestor);4558}4559function toggleLists(tagName) {4560	4561	4562	var mode = getSelectionListState() == tagName ? "disable" : "enable";4563	var range = getActiveRange();4564	tagName = tagName.toUpperCase();4565	4566	4567	var otherTagName = tagName == "OL" ? "UL" : "OL";4568	4569	4570	4571	4572	4573	var items = [];4574	(function(){4575		for (4576			var ancestorContainer = range.endContainer;4577			ancestorContainer != range.commonAncestorContainer;4578			ancestorContainer = ancestorContainer.parentNode4579		) {4580			if (isHtmlElement(ancestorContainer, "li")) {4581				items.unshift(ancestorContainer);4582			}4583		}4584		for (4585			var ancestorContainer = range.startContainer;4586			ancestorContainer;4587			ancestorContainer = ancestorContainer.parentNode4588		) {4589			if (isHtmlElement(ancestorContainer, "li")) {4590				items.unshift(ancestorContainer);4591			}4592		}4593	})();4594	4595	items.forEach(normalizeSublists);4596	4597	var newRange = blockExtend(range);4598	4599	4600	4601	if (mode == "enable") {4602		getAllContainedNodes(newRange, function(node) {4603			return isEditable(node)4604				&& isHtmlElement(node, otherTagName);4605		}).forEach(function(list) {4606			4607			4608			if ((isEditable(list.previousSibling) && isHtmlElement(list.previousSibling, tagName))4609			|| (isEditable(list.nextSibling) && isHtmlElement(list.nextSibling, tagName))) {4610				4611				var children = [].slice.call(list.childNodes);4612				4613				4614				var values = recordValues(children);4615				4616				splitParent(children);4617				4618				4619				wrap(children, function(node) { return isHtmlElement(node, tagName) });4620				4621				restoreValues(values);4622			4623			} else {4624				setTagName(list, tagName);4625			}4626		});4627	}4628	4629	4630	4631	4632	4633	4634	4635	var nodeList = getContainedNodes(newRange, function(node) {4636		return isEditable(node)4637		&& !isIndentationElement(node)4638		&& (isHtmlElement(node, ["OL", "UL"])4639		|| isHtmlElement(node.parentNode, ["OL", "UL"])4640		|| isAllowedChild(node, "li"));4641	});4642	4643	4644	if (mode == "enable") {4645		nodeList = nodeList.filter(function(node) {4646			return !isHtmlElement(node, ["ol", "ul"])4647				|| isHtmlElement(node.parentNode, ["ol", "ul"]);4648		});4649	}4650	4651	if (mode == "disable") {4652		while (nodeList.length) {4653			4654			var sublist = [];4655			4656			4657			sublist.push(nodeList.shift());4658			4659			4660			4661			if (isHtmlElement(sublist[0], tagName)) {4662				outdentNode(sublist[0]);4663				continue;4664			}4665			4666			4667			4668			4669			while (nodeList.length4670			&& nodeList[0] == sublist[sublist.length - 1].nextSibling4671			&& !isHtmlElement(nodeList[0], tagName)) {4672				sublist.push(nodeList.shift());4673			}4674			4675			var values = recordValues(sublist);4676			4677			splitParent(sublist);4678			4679			for (var i = 0; i < sublist.length; i++) {4680				fixDisallowedAncestors(sublist[i]);4681			}4682			4683			restoreValues(values);4684		}4685	4686	} else {4687		while (nodeList.length) {4688			4689			var sublist = [];4690			4691			4692			while (!sublist.length4693			|| (nodeList.length4694			&& nodeList[0] == sublist[sublist.length - 1].nextSibling)) {4695				4696				4697				4698				if (isHtmlElement(nodeList[0], ["p", "div"])) {4699					sublist.push(setTagName(nodeList[0], "li"));4700					nodeList.shift();4701				4702				4703				} else if (isHtmlElement(nodeList[0], ["li", "ol", "ul"])) {4704					sublist.push(nodeList.shift());4705				4706				} else {4707					4708					var nodesToWrap = [];4709					4710					4711					4712					4713					4714					4715					while (!nodesToWrap.length4716					|| (nodeList.length4717					&& nodeList[0] == nodesToWrap[nodesToWrap.length - 1].nextSibling4718					&& isInlineNode(nodeList[0])4719					&& isInlineNode(nodesToWrap[nodesToWrap.length - 1])4720					&& !isHtmlElement(nodesToWrap[nodesToWrap.length - 1], "br"))) {4721						nodesToWrap.push(nodeList.shift());4722					}4723					4724					4725					4726					sublist.push(wrap(nodesToWrap,4727						undefined,4728						function() { return document.createElement("li") }));4729				}4730			}4731			4732			4733			4734			if (isHtmlElement(sublist[0].parentNode, tagName)4735			|| sublist.every(function(node) { return isHtmlElement(node, ["ol", "ul"]) })) {4736				continue;4737			}4738			4739			4740			if (isHtmlElement(sublist[0].parentNode, otherTagName)) {4741				4742				4743				var values = recordValues(sublist);4744				4745				splitParent(sublist);4746				4747				4748				4749				4750				wrap(sublist,4751					function(node) { return isHtmlElement(node, tagName) },4752					function() { return document.createElement(tagName) });4753				4754				restoreValues(values);4755				4756				continue;4757			}4758			4759			4760			4761			4762			4763			fixDisallowedAncestors(wrap(sublist,4764				function(node) { return isHtmlElement(node, tagName) },4765				function() {4766					4767					4768					4769					4770					4771					if (!isEditable(sublist[0].parentNode)4772					|| !isSimpleIndentationElement(sublist[0].parentNode)4773					|| !isEditable(sublist[0].parentNode.previousSibling)4774					|| !isHtmlElement(sublist[0].parentNode.previousSibling, tagName)) {4775						return document.createElement(tagName);4776					}4777					4778					4779					var list = sublist[0].parentNode.previousSibling;4780					4781					normalizeSublists(list.lastChild);4782					4783					4784					4785					4786					if (!isEditable(list.lastChild)4787					|| !isHtmlElement(list.lastChild, tagName)) {4788						list.appendChild(document.createElement(tagName));4789					}4790					4791					return list.lastChild;4792				}4793			));4794		}4795	}4796}4797function justifySelection(alignment) {4798	4799	var newRange = blockExtend(globalRange);4800	4801	4802	4803	4804	var elementList = getAllContainedNodes(newRange, function(node) {4805		return node.nodeType == Node.ELEMENT_NODE4806			&& isEditable(node)4807			4808			&& (4809				node.hasAttribute("align")4810				|| node.style.textAlign != ""4811				|| isHtmlElement(node, "center")4812			);4813	});4814	4815	for (var i = 0; i < elementList.length; i++) {4816		var element = elementList[i];4817		4818		4819		element.removeAttribute("align");4820		4821		4822		element.style.textAlign = "";4823		if (element.getAttribute("style") == "") {4824			element.removeAttribute("style");4825		}4826		4827		4828		if (isHtmlElement(element, ["div", "span", "center"])4829		&& !element.attributes.length) {4830			removePreservingDescendants(element);4831		}4832		4833		4834		if (isHtmlElement(element, "center")4835		&& element.attributes.length) {4836			setTagName(element, "div");4837		}4838	}4839	4840	newRange = blockExtend(globalRange);4841	4842	var nodeList = [];4843	4844	4845	4846	4847	nodeList = getContainedNodes(newRange, function(node) {4848		return isEditable(node)4849			&& isAllowedChild(node, "div")4850			&& getAlignmentValue(node) != alignment;4851	});4852	4853	while (nodeList.length) {4854		4855		var sublist = [];4856		4857		sublist.push(nodeList.shift());4858		4859		4860		4861		while (nodeList.length4862		&& nodeList[0] == sublist[sublist.length - 1].nextSibling) {4863			sublist.push(nodeList.shift());4864		}4865		4866		4867		4868		4869		4870		4871		4872		4873		4874		4875		4876		4877		4878		wrap(sublist,4879			function(node) {4880				return isHtmlElement(node, "div")4881					&& [].every.call(node.attributes, function(attr) {4882						return (attr.name == "align" && attr.value.toLowerCase() == alignment)4883							|| (attr.name == "style" && node.style.length == 1 && node.style.textAlign == alignment);4884					});4885			},4886			function() {4887				var newParent = document.createElement("div");4888				newParent.setAttribute("style", "text-align: " + alignment);4889				return newParent;4890			}4891		);4892	}4893}4894var autolinkableUrlRegexp =4895	4896	4897	4898	4899	4900	"([a-zA-Z][a-zA-Z0-9+.-]*://|mailto:)"4901	4902	+ "[^ \t\n\f\r]*"4903	4904	+ "[^!\"'(),\\-.:;<>[\\]`{}]";4905var validEmailRegexp =4906	"[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~.]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*";4907function autolink(node, endOffset) {4908	4909	4910	while (getPreviousEquivalentPoint(node, endOffset)) {4911		var prev = getPreviousEquivalentPoint(node, endOffset);4912		node = prev[0];4913		endOffset = prev[1];4914	}4915	4916	4917	if (node.nodeType != Node.TEXT_NODE4918	|| getAncestors(node).some(function(ancestor) { return isHtmlElement(ancestor, "a") })) {4919		return;4920	}4921	4922	4923	var search = /[^ \t\n\f\r]*$/.exec(node.substringData(0, endOffset))[0];4924	4925	if (new RegExp(autolinkableUrlRegexp).test(search)) {...

Using AI Code Generation

1var wpt = require("waypoint");2var wpt1 = new wpt.Waypoint();3var wpt2 = new wpt.Waypoint();4var wpt3 = new wpt.Waypoint();5var wpt4 = new wpt.Waypoint();6var wpt5 = new wpt.Waypoint();7var wpt6 = new wpt.Waypoint();8var wpt7 = new wpt.Waypoint();9wpt1.setLatitude(10);10wpt1.setLongitude(20);11wpt2.setLatitude(10);12wpt2.setLongitude(20);13wpt3.setLatitude(10);14wpt3.setLongitude(20);15wpt4.setLatitude(10);16wpt4.setLongitude(20);17wpt5.setLatitude(10);18wpt5.setLongitude(20);19wpt6.setLatitude(10);20wpt6.setLongitude(20);21wpt7.setLatitude(10);22wpt7.setLongitude(20);23var wptArr = [wpt1,wpt2,wpt3,wpt4,wpt5,wpt6,wpt7];24var wptArr1 = wpt.getPreviousEquivalentPoint(wptArr);25console.log(wptArr1);26var wpt = require("waypoint");27var wpt1 = new wpt.Waypoint();28var wpt2 = new wpt.Waypoint();29var wpt3 = new wpt.Waypoint();30var wpt4 = new wpt.Waypoint();31var wpt5 = new wpt.Waypoint();32var wpt6 = new wpt.Waypoint();33var wpt7 = new wpt.Waypoint();34wpt1.setLatitude(10);35wpt1.setLongitude(20);36wpt2.setLatitude(10);37wpt2.setLongitude(20);38wpt3.setLatitude(10);39wpt3.setLongitude(20);40wpt4.setLatitude(10);41wpt4.setLongitude(20);42wpt5.setLatitude(10);43wpt5.setLongitude(20);44wpt6.setLatitude(10);45wpt6.setLongitude(20);46wpt7.setLatitude(10);47wpt7.setLongitude(

Using AI Code Generation

1var wpt = new Waypoint(0,0,0);2var prevWpt = wpt.getPreviousEquivalentPoint();3prevWpt.x = 1;4prevWpt.y = 2;5prevWpt.z = 3;6wpt.x = 5;7wpt.y = 6;8wpt.z = 7;9wpt.setPreviousEquivalentPoint(prevWpt);10wpt.getPreviousEquivalentPoint().x = 8;11wpt.getPreviousEquivalentPoint().setX(9);12wpt.getPreviousEquivalentPoint().setPreviousEquivalentPoint(new Waypoint(10,11,12));13wpt.getPreviousEquivalentPoint().getPreviousEquivalentPoint().x = 13;14wpt.getPreviousEquivalentPoint().getPreviousEquivalentPoint().setX(14);

Using AI Code Generation

1var wpt = require('wpt');2var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9);3console.log(point);4var wpt = require('wpt');5var point = wpt.getPreviousEquivalentPoint(1,2);6console.log(point);7var wpt = require('wpt');8var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8);9console.log(point);10var wpt = require('wpt');11var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10);12console.log(point);13var wpt = require('wpt');14var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11);15console.log(point);16var wpt = require('wpt');17var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11,12);18console.log(point);19var wpt = require('wpt');20var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11,12,13);21console.log(point);22var wpt = require('wpt');23var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11,12,13,14);24console.log(point);

Using AI Code Generation

1var wpt = new WayPoint(1,1,1);2var wpt2 = new WayPoint(1,1,1);3var wpt3 = new WayPoint(1,1,2);4var wpt = new WayPoint(1,1,1);5var wpt2 = new WayPoint(1,1,1);6var wpt3 = new WayPoint(1,1,2);7var wpt = new WayPoint(1,1,1);8var wpt2 = new WayPoint(1,1,1);9var wpt3 = new WayPoint(1,1,2);10var wpt = new WayPoint(1,1,1);11var wpt2 = new WayPoint(1,1,1);12var wpt3 = new WayPoint(1,1,2);13var wpt = new WayPoint(1,1,1);14var wpt2 = new WayPoint(1,1,1);15var wpt3 = new WayPoint(1,1,2);

Using AI Code Generation

1var wpt = new Waypoint(0, 0, 0, 0, 0, 0, 0, 0);2var prev = wpt.getPreviousEquivalentPoint();3var route = new Route();4var wpt = new Waypoint(0, 0, 0, 0, 0, 0, 0, 0);5route.addWaypoint(wpt);6var prev = route.getPreviousEquivalentPoint();

Using AI Code Generation

1var wpt = require('wpt');2var point = wpt.getPreviousEquivalentPoint(2, 2, 4, 4);3var wpt = require('wpt');4var point = wpt.getPreviousEquivalentPoint(2, 2, 2, 2);5var wpt = require('wpt');6var point = wpt.getPreviousEquivalentPoint(2, 2, 2, 3);7var wpt = require('wpt');8var point = wpt.getPreviousEquivalentPoint(2, 2, 3, 2);9var wpt = require('wpt');10var point = wpt.getPreviousEquivalentPoint(2, 2, 3, 3);11var wpt = require('wpt');12var point = wpt.getPreviousEquivalentPoint(2, 2, 1, 1);13var wpt = require('wpt');14var point = wpt.getPreviousEquivalentPoint(2, 2, 1, 2);15var wpt = require('wpt');16var point = wpt.getPreviousEquivalentPoint(2, 2, 1, 3);

Using AI Code Generation

1var wpt = require('wpt');2var previousPoint = wpt.getPreviousEquivalentPoint(10, 20, 1);3console.log(previousPoint);4var wpt = require('wpt');5var nextPoint = wpt.getNextEquivalentPoint(10, 20, 1);6console.log(nextPoint);7var wpt = require('wpt');8var point = wpt.getPointOnLine(10, 20, 30, 40, 1);9console.log(point);10var wpt = require('wpt');11var point = wpt.getPointOnCurve(10, 20, 30, 40, 50, 60, 70, 80, 1);12console.log(point);13var wpt = require('wpt');14var point = wpt.getPointOnBezierCurve(10, 20, 30, 40, 50, 60, 1);15console.log(point);16var wpt = require('wpt');17var point = wpt.getPointOnQuadraticCurve(10, 20, 30, 40, 50, 60, 1);18console.log(point);19var wpt = require('wpt');20var point = wpt.getPointOnSpline(10, 20, 30, 40, 50, 60, 70, 80, 1);21console.log(point);

Using AI Code Generation

1var wpt = new WayPoint(1, 2);2var wpt2 = new WayPoint(2, 3);3wpt.getPreviousEquivalentPoint(wpt2);4### getPreviousEquivalentPoint(wpt)5### getPreviousPoint()6### getPreviousPointAtDistance(distance)7### getPreviousPointAtDistanceFromEnd(distance)8### getPreviousPointAtTime(time)9### getPreviousPointAtTimeFromEnd(time)10### getPreviousPointAtX(x)11### getPreviousPointAtY(y)12### getPreviousPointInDirection(direction)13### getPreviousPointInDirectionFromEnd(direction)14### getPreviousPointInDirectionFromTime(direction, time)15### getPreviousPointInDirectionFromTimeFromEnd(direction, time)16### getPreviousPointInDirectionFromX(direction, x)17### getPreviousPointInDirectionFromY(direction, y)18### getPreviousPointInDirectionFromXFromEnd(direction, x)19### getPreviousPointInDirectionFromYFromEnd(direction, y)

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.