/*! DataTables 2.3.1
 * © SpryMedia Ltd - datatables.net/license
 */

import jQuery from 'jquery';

// DataTables code uses $ internally, but we want to be able to
// reassign $ with the `use` method, so it is a regular var.
var $ = jQuery;


var DataTable = function ( selector, options )
{
	// Check if called with a window or jQuery object for DOM less applications
	// This is for backwards compatibility
	if (DataTable.factory(selector, options)) {
		return DataTable;
	}

	// When creating with `new`, create a new DataTable, returning the API instance
	if (this instanceof DataTable) {
		return $(selector).DataTable(options);
	}
	else {
		// Argument switching
		options = selector;
	}

	var _that = this;
	var emptyInit = options === undefined;
	var len = this.length;

	if ( emptyInit ) {
		options = {};
	}

	// Method to get DT API instance from jQuery object
	this.api = function ()
	{
		return new _Api( this );
	};

	this.each(function() {
		// For each initialisation we want to give it a clean initialisation
		// object that can be bashed around
		var o = {};
		var oInit = len > 1 ? // optimisation for single table case
			_fnExtend( o, options, true ) :
			options;

		
		var i=0, iLen;
		var sId = this.getAttribute( 'id' );
		var defaults = DataTable.defaults;
		var $this = $(this);
		
		// Sanity check
		if ( this.nodeName.toLowerCase() != 'table' )
		{
			_fnLog( null, 0, 'Non-table node initialisation ('+this.nodeName+')', 2 );
			return;
		}
		
		// Special case for options
		if (oInit.on && oInit.on.options) {
			_fnListener($this, 'options', oInit.on.options);	
		}
		
		$this.trigger( 'options.dt', oInit );
		
		/* Backwards compatibility for the defaults */
		_fnCompatOpts( defaults );
		_fnCompatCols( defaults.column );
		
		/* Convert the camel-case defaults to Hungarian */
		_fnCamelToHungarian( defaults, defaults, true );
		_fnCamelToHungarian( defaults.column, defaults.column, true );
		
		/* Setting up the initialisation object */
		_fnCamelToHungarian( defaults, $.extend( oInit, $this.data() ), true );
		
		
		
		/* Check to see if we are re-initialising a table */
		var allSettings = DataTable.settings;
		for ( i=0, iLen=allSettings.length ; i<iLen ; i++ )
		{
			var s = allSettings[i];
		
			/* Base check on table node */
			if (
				s.nTable == this ||
				(s.nTHead && s.nTHead.parentNode == this) ||
				(s.nTFoot && s.nTFoot.parentNode == this)
			) {
				var bRetrieve = oInit.bRetrieve !== undefined ? oInit.bRetrieve : defaults.bRetrieve;
				var bDestroy = oInit.bDestroy !== undefined ? oInit.bDestroy : defaults.bDestroy;
		
				if ( emptyInit || bRetrieve )
				{
					return s.oInstance;
				}
				else if ( bDestroy )
				{
					new DataTable.Api(s).destroy();
					break;
				}
				else
				{
					_fnLog( s, 0, 'Cannot reinitialise DataTable', 3 );
					return;
				}
			}
		
			/* If the element we are initialising has the same ID as a table which was previously
			 * initialised, but the table nodes don't match (from before) then we destroy the old
			 * instance by simply deleting it. This is under the assumption that the table has been
			 * destroyed by other methods. Anyone using non-id selectors will need to do this manually
			 */
			if ( s.sTableId == this.id )
			{
				allSettings.splice( i, 1 );
				break;
			}
		}
		
		/* Ensure the table has an ID - required for accessibility */
		if ( sId === null || sId === "" )
		{
			sId = "DataTables_Table_"+(DataTable.ext._unique++);
			this.id = sId;
		}
		
		/* Create the settings object for this table and set some of the default parameters */
		var oSettings = $.extend( true, {}, DataTable.models.oSettings, {
			"sDestroyWidth": $this[0].style.width,
			"sInstance":     sId,
			"sTableId":      sId,
			colgroup: $('<colgroup>').prependTo(this),
			fastData: function (row, column, type) {
				return _fnGetCellData(oSettings, row, column, type);
			}
		} );
		oSettings.nTable = this;
		oSettings.oInit  = oInit;
		
		allSettings.push( oSettings );
		
		// Make a single API instance available for internal handling
		oSettings.api = new _Api( oSettings );
		
		// Need to add the instance after the instance after the settings object has been added
		// to the settings array, so we can self reference the table instance if more than one
		oSettings.oInstance = (_that.length===1) ? _that : $this.dataTable();
		
		// Backwards compatibility, before we apply all the defaults
		_fnCompatOpts( oInit );
		
		// If the length menu is given, but the init display length is not, use the length menu
		if ( oInit.aLengthMenu && ! oInit.iDisplayLength )
		{
			oInit.iDisplayLength = Array.isArray(oInit.aLengthMenu[0])
				? oInit.aLengthMenu[0][0]
				: $.isPlainObject( oInit.aLengthMenu[0] )
					? oInit.aLengthMenu[0].value
					: oInit.aLengthMenu[0];
		}
		
		// Apply the defaults and init options to make a single init object will all
		// options defined from defaults and instance options.
		oInit = _fnExtend( $.extend( true, {}, defaults ), oInit );
		
		
		// Map the initialisation options onto the settings object
		_fnMap( oSettings.oFeatures, oInit, [
			"bPaginate",
			"bLengthChange",
			"bFilter",
			"bSort",
			"bSortMulti",
			"bInfo",
			"bProcessing",
			"bAutoWidth",
			"bSortClasses",
			"bServerSide",
			"bDeferRender"
		] );
		_fnMap( oSettings, oInit, [
			"ajax",
			"fnFormatNumber",
			"sServerMethod",
			"aaSorting",
			"aaSortingFixed",
			"aLengthMenu",
			"sPaginationType",
			"iStateDuration",
			"bSortCellsTop",
			"iTabIndex",
			"sDom",
			"fnStateLoadCallback",
			"fnStateSaveCallback",
			"renderer",
			"searchDelay",
			"rowId",
			"caption",
			"layout",
			"orderDescReverse",
			"orderIndicators",
			"orderHandler",
			"titleRow",
			"typeDetect",
			[ "iCookieDuration", "iStateDuration" ], // backwards compat
			[ "oSearch", "oPreviousSearch" ],
			[ "aoSearchCols", "aoPreSearchCols" ],
			[ "iDisplayLength", "_iDisplayLength" ]
		] );
		_fnMap( oSettings.oScroll, oInit, [
			[ "sScrollX", "sX" ],
			[ "sScrollXInner", "sXInner" ],
			[ "sScrollY", "sY" ],
			[ "bScrollCollapse", "bCollapse" ]
		] );
		_fnMap( oSettings.oLanguage, oInit, "fnInfoCallback" );
		
		/* Callback functions which are array driven */
		_fnCallbackReg( oSettings, 'aoDrawCallback',       oInit.fnDrawCallback );
		_fnCallbackReg( oSettings, 'aoStateSaveParams',    oInit.fnStateSaveParams );
		_fnCallbackReg( oSettings, 'aoStateLoadParams',    oInit.fnStateLoadParams );
		_fnCallbackReg( oSettings, 'aoStateLoaded',        oInit.fnStateLoaded );
		_fnCallbackReg( oSettings, 'aoRowCallback',        oInit.fnRowCallback );
		_fnCallbackReg( oSettings, 'aoRowCreatedCallback', oInit.fnCreatedRow );
		_fnCallbackReg( oSettings, 'aoHeaderCallback',     oInit.fnHeaderCallback );
		_fnCallbackReg( oSettings, 'aoFooterCallback',     oInit.fnFooterCallback );
		_fnCallbackReg( oSettings, 'aoInitComplete',       oInit.fnInitComplete );
		_fnCallbackReg( oSettings, 'aoPreDrawCallback',    oInit.fnPreDrawCallback );
		
		oSettings.rowIdFn = _fnGetObjectDataFn( oInit.rowId );
		
		// Add event listeners
		if (oInit.on) {
			Object.keys(oInit.on).forEach(function (key) {
				_fnListener($this, key, oInit.on[key]);
			});
		}
		
		/* Browser support detection */
		_fnBrowserDetect( oSettings );
		
		var oClasses = oSettings.oClasses;
		
		$.extend( oClasses, DataTable.ext.classes, oInit.oClasses );
		$this.addClass( oClasses.table );
		
		if (! oSettings.oFeatures.bPaginate) {
			oInit.iDisplayStart = 0;
		}
		
		if ( oSettings.iInitDisplayStart === undefined )
		{
			/* Display start point, taking into account the save saving */
			oSettings.iInitDisplayStart = oInit.iDisplayStart;
			oSettings._iDisplayStart = oInit.iDisplayStart;
		}
		
		var defer = oInit.iDeferLoading;
		if ( defer !== null )
		{
			oSettings.deferLoading = true;
		
			var tmp = Array.isArray(defer);
			oSettings._iRecordsDisplay = tmp ? defer[0] : defer;
			oSettings._iRecordsTotal = tmp ? defer[1] : defer;
		}
		
		/*
		 * Columns
		 * See if we should load columns automatically or use defined ones
		 */
		var columnsInit = [];
		var thead = this.getElementsByTagName('thead');
		var initHeaderLayout = _fnDetectHeader( oSettings, thead[0] );
		
		// If we don't have a columns array, then generate one with nulls
		if ( oInit.aoColumns ) {
			columnsInit = oInit.aoColumns;
		}
		else if ( initHeaderLayout.length ) {
			for ( i=0, iLen=initHeaderLayout[0].length ; i<iLen ; i++ ) {
				columnsInit.push( null );
			}
		}
		
		// Add the columns
		for ( i=0, iLen=columnsInit.length ; i<iLen ; i++ ) {
			_fnAddColumn( oSettings );
		}
		
		// Apply the column definitions
		_fnApplyColumnDefs( oSettings, oInit.aoColumnDefs, columnsInit, initHeaderLayout, function (iCol, oDef) {
			_fnColumnOptions( oSettings, iCol, oDef );
		} );
		
		/* HTML5 attribute detection - build an mData object automatically if the
		 * attributes are found
		 */
		var rowOne = $this.children('tbody').find('tr:first-child').eq(0);
		
		if ( rowOne.length ) {
			var a = function ( cell, name ) {
				return cell.getAttribute( 'data-'+name ) !== null ? name : null;
			};
		
			$( rowOne[0] ).children('th, td').each( function (i, cell) {
				var col = oSettings.aoColumns[i];
		
				if (! col) {
					_fnLog( oSettings, 0, 'Incorrect column count', 18 );
				}
		
				if ( col.mData === i ) {
					var sort = a( cell, 'sort' ) || a( cell, 'order' );
					var filter = a( cell, 'filter' ) || a( cell, 'search' );
		
					if ( sort !== null || filter !== null ) {
						col.mData = {
							_:      i+'.display',
							sort:   sort !== null   ? i+'.@data-'+sort   : undefined,
							type:   sort !== null   ? i+'.@data-'+sort   : undefined,
							filter: filter !== null ? i+'.@data-'+filter : undefined
						};
						col._isArrayHost = true;
		
						_fnColumnOptions( oSettings, i );
					}
				}
			} );
		}
		
		// Must be done after everything which can be overridden by the state saving!
		_fnCallbackReg( oSettings, 'aoDrawCallback', _fnSaveState );
		
		var features = oSettings.oFeatures;
		if ( oInit.bStateSave )
		{
			features.bStateSave = true;
		}
		
		// If aaSorting is not defined, then we use the first indicator in asSorting
		// in case that has been altered, so the default sort reflects that option
		if ( oInit.aaSorting === undefined ) {
			var sorting = oSettings.aaSorting;
			for ( i=0, iLen=sorting.length ; i<iLen ; i++ ) {
				sorting[i][1] = oSettings.aoColumns[ i ].asSorting[0];
			}
		}
		
		// Do a first pass on the sorting classes (allows any size changes to be taken into
		// account, and also will apply sorting disabled classes if disabled
		_fnSortingClasses( oSettings );
		
		_fnCallbackReg( oSettings, 'aoDrawCallback', function () {
			if ( oSettings.bSorted || _fnDataSource( oSettings ) === 'ssp' || features.bDeferRender ) {
				_fnSortingClasses( oSettings );
			}
		} );
		
		
		/*
		 * Table HTML init
		 * Cache the header, body and footer as required, creating them if needed
		 */
		var caption = $this.children('caption');
		
		if ( oSettings.caption ) {
			if ( caption.length === 0 ) {
				caption = $('<caption/>').appendTo( $this );
			}
		
			caption.html( oSettings.caption );
		}
		
		// Store the caption side, so we can remove the element from the document
		// when creating the element
		if (caption.length) {
			caption[0]._captionSide = caption.css('caption-side');
			oSettings.captionNode = caption[0];
		}
		
		if ( thead.length === 0 ) {
			thead = $('<thead/>').appendTo($this);
		}
		oSettings.nTHead = thead[0];
		
		var tbody = $this.children('tbody');
		if ( tbody.length === 0 ) {
			tbody = $('<tbody/>').insertAfter(thead);
		}
		oSettings.nTBody = tbody[0];
		
		var tfoot = $this.children('tfoot');
		if ( tfoot.length === 0 ) {
			// If we are a scrolling table, and no footer has been given, then we need to create
			// a tfoot element for the caption element to be appended to
			tfoot = $('<tfoot/>').appendTo($this);
		}
		oSettings.nTFoot = tfoot[0];
		
		// Copy the data index array
		oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
		
		// Initialisation complete - table can be drawn
		oSettings.bInitialised = true;
		
		// Language definitions
		var oLanguage = oSettings.oLanguage;
		$.extend( true, oLanguage, oInit.oLanguage );
		
		if ( oLanguage.sUrl ) {
			// Get the language definitions from a file
			$.ajax( {
				dataType: 'json',
				url: oLanguage.sUrl,
				success: function ( json ) {
					_fnCamelToHungarian( defaults.oLanguage, json );
					$.extend( true, oLanguage, json, oSettings.oInit.oLanguage );
		
					_fnCallbackFire( oSettings, null, 'i18n', [oSettings], true);
					_fnInitialise( oSettings );
				},
				error: function () {
					// Error occurred loading language file
					_fnLog( oSettings, 0, 'i18n file loading error', 21 );
		
					// Continue on as best we can
					_fnInitialise( oSettings );
				}
			} );
		}
		else {
			_fnCallbackFire( oSettings, null, 'i18n', [oSettings], true);
			_fnInitialise( oSettings );
		}
	} );
	_that = null;
	return this;
};



/**
 * DataTables extensions
 * 
 * This namespace acts as a collection area for plug-ins that can be used to
 * extend DataTables capabilities. Indeed many of the build in methods
 * use this method to provide their own capabilities (sorting methods for
 * example).
 *
 * Note that this namespace is aliased to `jQuery.fn.dataTableExt` for legacy
 * reasons
 *
 *  @namespace
 */
DataTable.ext = _ext = {
	/**
	 * DataTables build type (expanded by the download builder)
	 *
	 *  @type string
	 */
	builder: "-source-",

	/**
	 * Buttons. For use with the Buttons extension for DataTables. This is
	 * defined here so other extensions can define buttons regardless of load
	 * order. It is _not_ used by DataTables core.
	 *
	 *  @type object
	 *  @default {}
	 */
	buttons: {},


	/**
	 * ColumnControl buttons and content
	 *
	 *  @type object
	 */
	ccContent: {},


	/**
	 * Element class names
	 *
	 *  @type object
	 *  @default {}
	 */
	classes: {},


	/**
	 * Error reporting.
	 * 
	 * How should DataTables report an error. Can take the value 'alert',
	 * 'throw', 'none' or a function.
	 *
	 *  @type string|function
	 *  @default alert
	 */
	errMode: "alert",


	/**
	 * Legacy so v1 plug-ins don't throw js errors on load
	 */
	feature: [],

	/**
	 * Feature plug-ins.
	 * 
	 * This is an object of callbacks which provide the features for DataTables
	 * to be initialised via the `layout` option.
	 */
	features: {},


	/**
	 * Row searching.
	 * 
	 * This method of searching is complimentary to the default type based
	 * searching, and a lot more comprehensive as it allows you complete control
	 * over the searching logic. Each element in this array is a function
	 * (parameters described below) that is called for every row in the table,
	 * and your logic decides if it should be included in the searching data set
	 * or not.
	 *
	 * Searching functions have the following input parameters:
	 *
	 * 1. `{object}` DataTables settings object: see
	 *    {@link DataTable.models.oSettings}
	 * 2. `{array|object}` Data for the row to be processed (same as the
	 *    original format that was passed in as the data source, or an array
	 *    from a DOM data source
	 * 3. `{int}` Row index ({@link DataTable.models.oSettings.aoData}), which
	 *    can be useful to retrieve the `TR` element if you need DOM interaction.
	 *
	 * And the following return is expected:
	 *
	 * * {boolean} Include the row in the searched result set (true) or not
	 *   (false)
	 *
	 * Note that as with the main search ability in DataTables, technically this
	 * is "filtering", since it is subtractive. However, for consistency in
	 * naming we call it searching here.
	 *
	 *  @type array
	 *  @default []
	 *
	 *  @example
	 *    // The following example shows custom search being applied to the
	 *    // fourth column (i.e. the data[3] index) based on two input values
	 *    // from the end-user, matching the data in a certain range.
	 *    $.fn.dataTable.ext.search.push(
	 *      function( settings, data, dataIndex ) {
	 *        var min = document.getElementById('min').value * 1;
	 *        var max = document.getElementById('max').value * 1;
	 *        var version = data[3] == "-" ? 0 : data[3]*1;
	 *
	 *        if ( min == "" && max == "" ) {
	 *          return true;
	 *        }
	 *        else if ( min == "" && version < max ) {
	 *          return true;
	 *        }
	 *        else if ( min < version && "" == max ) {
	 *          return true;
	 *        }
	 *        else if ( min < version && version < max ) {
	 *          return true;
	 *        }
	 *        return false;
	 *      }
	 *    );
	 */
	search: [],


	/**
	 * Selector extensions
	 *
	 * The `selector` option can be used to extend the options available for the
	 * selector modifier options (`selector-modifier` object data type) that
	 * each of the three built in selector types offer (row, column and cell +
	 * their plural counterparts). For example the Select extension uses this
	 * mechanism to provide an option to select only rows, columns and cells
	 * that have been marked as selected by the end user (`{selected: true}`),
	 * which can be used in conjunction with the existing built in selector
	 * options.
	 *
	 * Each property is an array to which functions can be pushed. The functions
	 * take three attributes:
	 *
	 * * Settings object for the host table
	 * * Options object (`selector-modifier` object type)
	 * * Array of selected item indexes
	 *
	 * The return is an array of the resulting item indexes after the custom
	 * selector has been applied.
	 *
	 *  @type object
	 */
	selector: {
		cell: [],
		column: [],
		row: []
	},


	/**
	 * Legacy configuration options. Enable and disable legacy options that
	 * are available in DataTables.
	 *
	 *  @type object
	 */
	legacy: {
		/**
		 * Enable / disable DataTables 1.9 compatible server-side processing
		 * requests
		 *
		 *  @type boolean
		 *  @default null
		 */
		ajax: null
	},


	/**
	 * Pagination plug-in methods.
	 * 
	 * Each entry in this object is a function and defines which buttons should
	 * be shown by the pagination rendering method that is used for the table:
	 * {@link DataTable.ext.renderer.pageButton}. The renderer addresses how the
	 * buttons are displayed in the document, while the functions here tell it
	 * what buttons to display. This is done by returning an array of button
	 * descriptions (what each button will do).
	 *
	 * Pagination types (the four built in options and any additional plug-in
	 * options defined here) can be used through the `paginationType`
	 * initialisation parameter.
	 *
	 * The functions defined take two parameters:
	 *
	 * 1. `{int} page` The current page index
	 * 2. `{int} pages` The number of pages in the table
	 *
	 * Each function is expected to return an array where each element of the
	 * array can be one of:
	 *
	 * * `first` - Jump to first page when activated
	 * * `last` - Jump to last page when activated
	 * * `previous` - Show previous page when activated
	 * * `next` - Show next page when activated
	 * * `{int}` - Show page of the index given
	 * * `{array}` - A nested array containing the above elements to add a
	 *   containing 'DIV' element (might be useful for styling).
	 *
	 * Note that DataTables v1.9- used this object slightly differently whereby
	 * an object with two functions would be defined for each plug-in. That
	 * ability is still supported by DataTables 1.10+ to provide backwards
	 * compatibility, but this option of use is now decremented and no longer
	 * documented in DataTables 1.10+.
	 *
	 *  @type object
	 *  @default {}
	 *
	 *  @example
	 *    // Show previous, next and current page buttons only
	 *    $.fn.dataTableExt.oPagination.current = function ( page, pages ) {
	 *      return [ 'previous', page, 'next' ];
	 *    };
	 */
	pager: {},


	renderer: {
		pageButton: {},
		header: {}
	},


	/**
	 * Ordering plug-ins - custom data source
	 * 
	 * The extension options for ordering of data available here is complimentary
	 * to the default type based ordering that DataTables typically uses. It
	 * allows much greater control over the the data that is being used to
	 * order a column, but is necessarily therefore more complex.
	 * 
	 * This type of ordering is useful if you want to do ordering based on data
	 * live from the DOM (for example the contents of an 'input' element) rather
	 * than just the static string that DataTables knows of.
	 * 
	 * The way these plug-ins work is that you create an array of the values you
	 * wish to be ordering for the column in question and then return that
	 * array. The data in the array much be in the index order of the rows in
	 * the table (not the currently ordering order!). Which order data gathering
	 * function is run here depends on the `dt-init columns.orderDataType`
	 * parameter that is used for the column (if any).
	 *
	 * The functions defined take two parameters:
	 *
	 * 1. `{object}` DataTables settings object: see
	 *    {@link DataTable.models.oSettings}
	 * 2. `{int}` Target column index
	 *
	 * Each function is expected to return an array:
	 *
	 * * `{array}` Data for the column to be ordering upon
	 *
	 *  @type array
	 *
	 *  @example
	 *    // Ordering using `input` node values
	 *    $.fn.dataTable.ext.order['dom-text'] = function  ( settings, col )
	 *    {
	 *      return this.api().column( col, {order:'index'} ).nodes().map( function ( td, i ) {
	 *        return $('input', td).val();
	 *      } );
	 *    }
	 */
	order: {},


	/**
	 * Type based plug-ins.
	 *
	 * Each column in DataTables has a type assigned to it, either by automatic
	 * detection or by direct assignment using the `type` option for the column.
	 * The type of a column will effect how it is ordering and search (plug-ins
	 * can also make use of the column type if required).
	 *
	 * @namespace
	 */
	type: {
		/**
		 * Automatic column class assignment
		 */
		className: {},

		/**
		 * Type detection functions.
		 *
		 * The functions defined in this object are used to automatically detect
		 * a column's type, making initialisation of DataTables super easy, even
		 * when complex data is in the table.
		 *
		 * The functions defined take two parameters:
		 *
	     *  1. `{*}` Data from the column cell to be analysed
	     *  2. `{settings}` DataTables settings object. This can be used to
	     *     perform context specific type detection - for example detection
	     *     based on language settings such as using a comma for a decimal
	     *     place. Generally speaking the options from the settings will not
	     *     be required
		 *
		 * Each function is expected to return:
		 *
		 * * `{string|null}` Data type detected, or null if unknown (and thus
		 *   pass it on to the other type detection functions.
		 *
		 *  @type array
		 *
		 *  @example
		 *    // Currency type detection plug-in:
		 *    $.fn.dataTable.ext.type.detect.push(
		 *      function ( data, settings ) {
		 *        // Check the numeric part
		 *        if ( ! data.substring(1).match(/[0-9]/) ) {
		 *          return null;
		 *        }
		 *
		 *        // Check prefixed by currency
		 *        if ( data.charAt(0) == '$' || data.charAt(0) == '&pound;' ) {
		 *          return 'currency';
		 *        }
		 *        return null;
		 *      }
		 *    );
		 */
		detect: [],

		/**
		 * Automatic renderer assignment
		 */
		render: {},


		/**
		 * Type based search formatting.
		 *
		 * The type based searching functions can be used to pre-format the
		 * data to be search on. For example, it can be used to strip HTML
		 * tags or to de-format telephone numbers for numeric only searching.
		 *
		 * Note that is a search is not defined for a column of a given type,
		 * no search formatting will be performed.
		 * 
		 * Pre-processing of searching data plug-ins - When you assign the sType
		 * for a column (or have it automatically detected for you by DataTables
		 * or a type detection plug-in), you will typically be using this for
		 * custom sorting, but it can also be used to provide custom searching
		 * by allowing you to pre-processing the data and returning the data in
		 * the format that should be searched upon. This is done by adding
		 * functions this object with a parameter name which matches the sType
		 * for that target column. This is the corollary of <i>afnSortData</i>
		 * for searching data.
		 *
		 * The functions defined take a single parameter:
		 *
	     *  1. `{*}` Data from the column cell to be prepared for searching
		 *
		 * Each function is expected to return:
		 *
		 * * `{string|null}` Formatted string that will be used for the searching.
		 *
		 *  @type object
		 *  @default {}
		 *
		 *  @example
		 *    $.fn.dataTable.ext.type.search['title-numeric'] = function ( d ) {
		 *      return d.replace(/\n/g," ").replace( /<.*?>/g, "" );
		 *    }
		 */
		search: {},


		/**
		 * Type based ordering.
		 *
		 * The column type tells DataTables what ordering to apply to the table
		 * when a column is sorted upon. The order for each type that is defined,
		 * is defined by the functions available in this object.
		 *
		 * Each ordering option can be described by three properties added to
		 * this object:
		 *
		 * * `{type}-pre` - Pre-formatting function
		 * * `{type}-asc` - Ascending order function
		 * * `{type}-desc` - Descending order function
		 *
		 * All three can be used together, only `{type}-pre` or only
		 * `{type}-asc` and `{type}-desc` together. It is generally recommended
		 * that only `{type}-pre` is used, as this provides the optimal
		 * implementation in terms of speed, although the others are provided
		 * for compatibility with existing Javascript sort functions.
		 *
		 * `{type}-pre`: Functions defined take a single parameter:
		 *
	     *  1. `{*}` Data from the column cell to be prepared for ordering
		 *
		 * And return:
		 *
		 * * `{*}` Data to be sorted upon
		 *
		 * `{type}-asc` and `{type}-desc`: Functions are typical Javascript sort
		 * functions, taking two parameters:
		 *
	     *  1. `{*}` Data to compare to the second parameter
	     *  2. `{*}` Data to compare to the first parameter
		 *
		 * And returning:
		 *
		 * * `{*}` Ordering match: <0 if first parameter should be sorted lower
		 *   than the second parameter, ===0 if the two parameters are equal and
		 *   >0 if the first parameter should be sorted height than the second
		 *   parameter.
		 * 
		 *  @type object
		 *  @default {}
		 *
		 *  @example
		 *    // Numeric ordering of formatted numbers with a pre-formatter
		 *    $.extend( $.fn.dataTable.ext.type.order, {
		 *      "string-pre": function(x) {
		 *        a = (a === "-" || a === "") ? 0 : a.replace( /[^\d\-\.]/g, "" );
		 *        return parseFloat( a );
		 *      }
		 *    } );
		 *
		 *  @example
		 *    // Case-sensitive string ordering, with no pre-formatting method
		 *    $.extend( $.fn.dataTable.ext.order, {
		 *      "string-case-asc": function(x,y) {
		 *        return ((x < y) ? -1 : ((x > y) ? 1 : 0));
		 *      },
		 *      "string-case-desc": function(x,y) {
		 *        return ((x < y) ? 1 : ((x > y) ? -1 : 0));
		 *      }
		 *    } );
		 */
		order: {}
	},

	/**
	 * Unique DataTables instance counter
	 *
	 * @type int
	 * @private
	 */
	_unique: 0,


	//
	// Depreciated
	// The following properties are retained for backwards compatibility only.
	// The should not be used in new projects and will be removed in a future
	// version
	//

	/**
	 * Version check function.
	 *  @type function
	 *  @depreciated Since 1.10
	 */
	fnVersionCheck: DataTable.fnVersionCheck,


	/**
	 * Index for what 'this' index API functions should use
	 *  @type int
	 *  @deprecated Since v1.10
	 */
	iApiIndex: 0,


	/**
	 * Software version
	 *  @type string
	 *  @deprecated Since v1.10
	 */
	sVersion: DataTable.version
};


//
// Backwards compatibility. Alias to pre 1.10 Hungarian notation counter parts
//
$.extend( _ext, {
	afnFiltering: _ext.search,
	aTypes:       _ext.type.detect,
	ofnSearch:    _ext.type.search,
	oSort:        _ext.type.order,
	afnSortData:  _ext.order,
	aoFeatures:   _ext.feature,
	oStdClasses:  _ext.classes,
	oPagination:  _ext.pager
} );


$.extend( DataTable.ext.classes, {
	container: 'dt-container',
	empty: {
		row: 'dt-empty'
	},
	info: {
		container: 'dt-info'
	},
	layout: {
		row: 'dt-layout-row',
		cell: 'dt-layout-cell',
		tableRow: 'dt-layout-table',
		tableCell: '',
		start: 'dt-layout-start',
		end: 'dt-layout-end',
		full: 'dt-layout-full'
	},
	length: {
		container: 'dt-length',
		select: 'dt-input'
	},
	order: {
		canAsc: 'dt-orderable-asc',
		canDesc: 'dt-orderable-desc',
		isAsc: 'dt-ordering-asc',
		isDesc: 'dt-ordering-desc',
		none: 'dt-orderable-none',
		position: 'sorting_'
	},
	processing: {
		container: 'dt-processing'
	},
	scrolling: {
		body: 'dt-scroll-body',
		container: 'dt-scroll',
		footer: {
			self: 'dt-scroll-foot',
			inner: 'dt-scroll-footInner'
		},
		header: {
			self: 'dt-scroll-head',
			inner: 'dt-scroll-headInner'
		}
	},
	search: {
		container: 'dt-search',
		input: 'dt-input'
	},
	table: 'dataTable',	
	tbody: {
		cell: '',
		row: ''
	},
	thead: {
		cell: '',
		row: ''
	},
	tfoot: {
		cell: '',
		row: ''
	},
	paging: {
		active: 'current',
		button: 'dt-paging-button',
		container: 'dt-paging',
		disabled: 'disabled',
		nav: ''
	}
} );


/*
 * It is useful to have variables which are scoped locally so only the
 * DataTables functions can access them and they don't leak into global space.
 * At the same time these functions are often useful over multiple files in the
 * core and API, so we list, or at least document, all variables which are used
 * by DataTables as private variables here. This also ensures that there is no
 * clashing of variable names and that they can easily referenced for reuse.
 */


// Defined else where
//  _selector_run
//  _selector_opts
//  _selector_row_indexes

var _ext; // DataTable.ext
var _Api; // DataTable.Api
var _api_register; // DataTable.Api.register
var _api_registerPlural; // DataTable.Api.registerPlural

var _re_dic = {};
var _re_new_lines = /[\r\n\u2028]/g;
var _re_html = /<([^>]*>)/g;
var _max_str_len = Math.pow(2, 28);

// This is not strict ISO8601 - Date.parse() is quite lax, although
// implementations differ between browsers.
var _re_date = /^\d{2,4}[./-]\d{1,2}[./-]\d{1,2}([T ]{1}\d{1,2}[:.]\d{2}([.:]\d{2})?)?$/;

// Escape regular expression special characters
var _re_escape_regex = new RegExp( '(\\' + [ '/', '.', '*', '+', '?', '|', '(', ')', '[', ']', '{', '}', '\\', '$', '^', '-' ].join('|\\') + ')', 'g' );

// https://en.wikipedia.org/wiki/Foreign_exchange_market
// - \u20BD - Russian ruble.
// - \u20a9 - South Korean Won
// - \u20BA - Turkish Lira
// - \u20B9 - Indian Rupee
// - R - Brazil (R$) and South Africa
// - fr - Swiss Franc
// - kr - Swedish krona, Norwegian krone and Danish krone
// - \u2009 is thin space and \u202F is narrow no-break space, both used in many
// - Ƀ - Bitcoin
// - Ξ - Ethereum
//   standards as thousands separators.
var _re_formatted_numeric = /['\u00A0,$£€¥%\u2009\u202F\u20BD\u20a9\u20BArfkɃΞ]/gi;


var _empty = function ( d ) {
	return !d || d === true || d === '-' ? true : false;
};


var _intVal = function ( s ) {
	var integer = parseInt( s, 10 );
	return !isNaN(integer) && isFinite(s) ? integer : null;
};

// Convert from a formatted number with characters other than `.` as the
// decimal place, to a Javascript number
var _numToDecimal = function ( num, decimalPoint ) {
	// Cache created regular expressions for speed as this function is called often
	if ( ! _re_dic[ decimalPoint ] ) {
		_re_dic[ decimalPoint ] = new RegExp( _fnEscapeRegex( decimalPoint ), 'g' );
	}
	return typeof num === 'string' && decimalPoint !== '.' ?
		num.replace( /\./g, '' ).replace( _re_dic[ decimalPoint ], '.' ) :
		num;
};


var _isNumber = function ( d, decimalPoint, formatted, allowEmpty ) {
	var type = typeof d;
	var strType = type === 'string';

	if ( type === 'number' || type === 'bigint') {
		return true;
	}

	// If empty return immediately so there must be a number if it is a
	// formatted string (this stops the string "k", or "kr", etc being detected
	// as a formatted number for currency
	if ( allowEmpty && _empty( d ) ) {
		return true;
	}

	if ( decimalPoint && strType ) {
		d = _numToDecimal( d, decimalPoint );
	}

	if ( formatted && strType ) {
		d = d.replace( _re_formatted_numeric, '' );
	}

	return !isNaN( parseFloat(d) ) && isFinite( d );
};


// A string without HTML in it can be considered to be HTML still
var _isHtml = function ( d ) {
	return _empty( d ) || typeof d === 'string';
};

// Is a string a number surrounded by HTML?
var _htmlNumeric = function ( d, decimalPoint, formatted, allowEmpty ) {
	if ( allowEmpty && _empty( d ) ) {
		return true;
	}

	// input and select strings mean that this isn't just a number
	if (typeof d === 'string' && d.match(/<(input|select)/i)) {
		return null;
	}

	var html = _isHtml( d );
	return ! html ?
		null :
		_isNumber( _stripHtml( d ), decimalPoint, formatted, allowEmpty ) ?
			true :
			null;
};


var _pluck = function ( a, prop, prop2 ) {
	var out = [];
	var i=0, ien=a.length;

	// Could have the test in the loop for slightly smaller code, but speed
	// is essential here
	if ( prop2 !== undefined ) {
		for ( ; i<ien ; i++ ) {
			if ( a[i] && a[i][ prop ] ) {
				out.push( a[i][ prop ][ prop2 ] );
			}
		}
	}
	else {
		for ( ; i<ien ; i++ ) {
			if ( a[i] ) {
				out.push( a[i][ prop ] );
			}
		}
	}

	return out;
};


// Basically the same as _pluck, but rather than looping over `a` we use `order`
// as the indexes to pick from `a`
var _pluck_order = function ( a, order, prop, prop2 )
{
	var out = [];
	var i=0, ien=order.length;

	// Could have the test in the loop for slightly smaller code, but speed
	// is essential here
	if ( prop2 !== undefined ) {
		for ( ; i<ien ; i++ ) {
			if ( a[ order[i] ] && a[ order[i] ][ prop ] ) {
				out.push( a[ order[i] ][ prop ][ prop2 ] );
			}
		}
	}
	else {
		for ( ; i<ien ; i++ ) {
			if ( a[ order[i] ] ) {
				out.push( a[ order[i] ][ prop ] );
			}
		}
	}

	return out;
};


var _range = function ( len, start )
{
	var out = [];
	var end;

	if ( start === undefined ) {
		start = 0;
		end = len;
	}
	else {
		end = start;
		start = len;
	}

	for ( var i=start ; i<end ; i++ ) {
		out.push( i );
	}

	return out;
};


var _removeEmpty = function ( a )
{
	var out = [];

	for ( var i=0, ien=a.length ; i<ien ; i++ ) {
		if ( a[i] ) { // careful - will remove all falsy values!
			out.push( a[i] );
		}
	}

	return out;
};

// Replaceable function in api.util
var _stripHtml = function (input) {
	if (! input || typeof input !== 'string') {
		return input;
	}

	// Irrelevant check to workaround CodeQL's false positive on the regex
	if (input.length > _max_str_len) {
		throw new Error('Exceeded max str len');
	}

	var previous;

	input = input.replace(_re_html, ''); // Complete tags

	// Safety for incomplete script tag - use do / while to ensure that
	// we get all instances
	do {
		previous = input;
		input = input.replace(/<script/i, '');
	} while (input !== previous);

	return previous;
};

// Replaceable function in api.util
var _escapeHtml = function ( d ) {
	if (Array.isArray(d)) {
		d = d.join(',');
	}

	return typeof d === 'string' ?
		d
			.replace(/&/g, '&amp;')
			.replace(/</g, '&lt;')
			.replace(/>/g, '&gt;')
			.replace(/"/g, '&quot;') :
		d;
};

// Remove diacritics from a string by decomposing it and then removing
// non-ascii characters
var _normalize = function (str, both) {
	if (typeof str !== 'string') {
		return str;
	}

	// It is faster to just run `normalize` than it is to check if
	// we need to with a regex! (Check as it isn't available in old
	// Safari)
	var res = str.normalize
		? str.normalize("NFD")
		: str;

	// Equally, here we check if a regex is needed or not
	return res.length !== str.length
		? (both === true ? str + ' ' : '' ) + res.replace(/[\u0300-\u036f]/g, "")
		: res;
}

/**
 * Determine if all values in the array are unique. This means we can short
 * cut the _unique method at the cost of a single loop. A sorted array is used
 * to easily check the values.
 *
 * @param  {array} src Source array
 * @return {boolean} true if all unique, false otherwise
 * @ignore
 */
var _areAllUnique = function ( src ) {
	if ( src.length < 2 ) {
		return true;
	}

	var sorted = src.slice().sort();
	var last = sorted[0];

	for ( var i=1, ien=sorted.length ; i<ien ; i++ ) {
		if ( sorted[i] === last ) {
			return false;
		}

		last = sorted[i];
	}

	return true;
};


/**
 * Find the unique elements in a source array.
 *
 * @param  {array} src Source array
 * @return {array} Array of unique items
 * @ignore
 */
var _unique = function ( src )
{
	if (Array.from && Set) {
		return Array.from(new Set(src));
	}

	if ( _areAllUnique( src ) ) {
		return src.slice();
	}

	// A faster unique method is to use object keys to identify used values,
	// but this doesn't work with arrays or objects, which we must also
	// consider. See jsperf.app/compare-array-unique-versions/4 for more
	// information.
	var
		out = [],
		val,
		i, ien=src.length,
		j, k=0;

	again: for ( i=0 ; i<ien ; i++ ) {
		val = src[i];

		for ( j=0 ; j<k ; j++ ) {
			if ( out[j] === val ) {
				continue again;
			}
		}

		out.push( val );
		k++;
	}

	return out;
};

// Surprisingly this is faster than [].concat.apply
// https://jsperf.com/flatten-an-array-loop-vs-reduce/2
var _flatten = function (out, val) {
	if (Array.isArray(val)) {
		for (var i=0 ; i<val.length ; i++) {
			_flatten(out, val[i]);
		}
	}
	else {
		out.push(val);
	}

	return out;
}

// Similar to jQuery's addClass, but use classList.add
function _addClass(el, name) {
	if (name) {
		name.split(' ').forEach(function (n) {
			if (n) {
				// `add` does deduplication, so no need to check `contains`
				el.classList.add(n);
			}
		});
	}
}

/**
 * DataTables utility methods
 * 
 * This namespace provides helper methods that DataTables uses internally to
 * create a DataTable, but which are not exclusively used only for DataTables.
 * These methods can be used by extension authors to save the duplication of
 * code.
 *
 *  @namespace
 */
DataTable.util = {
	/**
	 * Return a string with diacritic characters decomposed
	 * @param {*} mixed Function or string to normalize
	 * @param {*} both Return original string and the normalized string
	 * @returns String or undefined
	 */
	diacritics: function (mixed, both) {
		var type = typeof mixed;

		if (type !== 'function') {
			return _normalize(mixed, both);
		}
		_normalize = mixed;
	},

	/**
	 * Debounce a function
	 *
	 * @param {function} fn Function to be called
	 * @param {integer} freq Call frequency in mS
	 * @return {function} Wrapped function
	 */
	debounce: function ( fn, timeout ) {
		var timer;

		return function () {
			var that = this;
			var args = arguments;

			clearTimeout(timer);

			timer = setTimeout( function () {
				fn.apply(that, args);
			}, timeout || 250 );
		};
	},

	/**
	 * Throttle the calls to a function. Arguments and context are maintained
	 * for the throttled function.
	 *
	 * @param {function} fn Function to be called
	 * @param {integer} freq Call frequency in mS
	 * @return {function} Wrapped function
	 */
	throttle: function ( fn, freq ) {
		var
			frequency = freq !== undefined ? freq : 200,
			last,
			timer;

		return function () {
			var
				that = this,
				now  = +new Date(),
				args = arguments;

			if ( last && now < last + frequency ) {
				clearTimeout( timer );

				timer = setTimeout( function () {
					last = undefined;
					fn.apply( that, args );
				}, frequency );
			}
			else {
				last = now;
				fn.apply( that, args );
			}
		};
	},

	/**
	 * Escape a string such that it can be used in a regular expression
	 *
	 *  @param {string} val string to escape
	 *  @returns {string} escaped string
	 */
	escapeRegex: function ( val ) {
		return val.replace( _re_escape_regex, '\\$1' );
	},

	/**
	 * Create a function that will write to a nested object or array
	 * @param {*} source JSON notation string
	 * @returns Write function
	 */
	set: function ( source ) {
		if ( $.isPlainObject( source ) ) {
			/* Unlike get, only the underscore (global) option is used for for
			 * setting data since we don't know the type here. This is why an object
			 * option is not documented for `mData` (which is read/write), but it is
			 * for `mRender` which is read only.
			 */
			return DataTable.util.set( source._ );
		}
		else if ( source === null ) {
			// Nothing to do when the data source is null
			return function () {};
		}
		else if ( typeof source === 'function' ) {
			return function (data, val, meta) {
				source( data, 'set', val, meta );
			};
		}
		else if (
			typeof source === 'string' && (source.indexOf('.') !== -1 ||
			source.indexOf('[') !== -1 || source.indexOf('(') !== -1)
		) {
			// Like the get, we need to get data from a nested object
			var setData = function (data, val, src) {
				var a = _fnSplitObjNotation( src ), b;
				var aLast = a[a.length-1];
				var arrayNotation, funcNotation, o, innerSrc;
	
				for ( var i=0, iLen=a.length-1 ; i<iLen ; i++ ) {
					// Protect against prototype pollution
					if (a[i] === '__proto__' || a[i] === 'constructor') {
						throw new Error('Cannot set prototype values');
					}
	
					// Check if we are dealing with an array notation request
					arrayNotation = a[i].match(__reArray);
					funcNotation = a[i].match(__reFn);
	
					if ( arrayNotation ) {
						a[i] = a[i].replace(__reArray, '');
						data[ a[i] ] = [];
	
						// Get the remainder of the nested object to set so we can recurse
						b = a.slice();
						b.splice( 0, i+1 );
						innerSrc = b.join('.');
	
						// Traverse each entry in the array setting the properties requested
						if ( Array.isArray( val ) ) {
							for ( var j=0, jLen=val.length ; j<jLen ; j++ ) {
								o = {};
								setData( o, val[j], innerSrc );
								data[ a[i] ].push( o );
							}
						}
						else {
							// We've been asked to save data to an array, but it
							// isn't array data to be saved. Best that can be done
							// is to just save the value.
							data[ a[i] ] = val;
						}
	
						// The inner call to setData has already traversed through the remainder
						// of the source and has set the data, thus we can exit here
						return;
					}
					else if ( funcNotation ) {
						// Function call
						a[i] = a[i].replace(__reFn, '');
						data = data[ a[i] ]( val );
					}
	
					// If the nested object doesn't currently exist - since we are
					// trying to set the value - create it
					if ( data[ a[i] ] === null || data[ a[i] ] === undefined ) {
						data[ a[i] ] = {};
					}
					data = data[ a[i] ];
				}
	
				// Last item in the input - i.e, the actual set
				if ( aLast.match(__reFn ) ) {
					// Function call
					data = data[ aLast.replace(__reFn, '') ]( val );
				}
				else {
					// If array notation is used, we just want to strip it and use the property name
					// and assign the value. If it isn't used, then we get the result we want anyway
					data[ aLast.replace(__reArray, '') ] = val;
				}
			};
	
			return function (data, val) { // meta is also passed in, but not used
				return setData( data, val, source );
			};
		}
		else {
			// Array or flat object mapping
			return function (data, val) { // meta is also passed in, but not used
				data[source] = val;
			};
		}
	},

	/**
	 * Create a function that will read nested objects from arrays, based on JSON notation
	 * @param {*} source JSON notation string
	 * @returns Value read
	 */
	get: function ( source ) {
		if ( $.isPlainObject( source ) ) {
			// Build an object of get functions, and wrap them in a single call
			var o = {};
			$.each( source, function (key, val) {
				if ( val ) {
					o[key] = DataTable.util.get( val );
				}
			} );
	
			return function (data, type, row, meta) {
				var t = o[type] || o._;
				return t !== undefined ?
					t(data, type, row, meta) :
					data;
			};
		}
		else if ( source === null ) {
			// Give an empty string for rendering / sorting etc
			return function (data) { // type, row and meta also passed, but not used
				return data;
			};
		}
		else if ( typeof source === 'function' ) {
			return function (data, type, row, meta) {
				return source( data, type, row, meta );
			};
		}
		else if (
			typeof source === 'string' && (source.indexOf('.') !== -1 ||
			source.indexOf('[') !== -1 || source.indexOf('(') !== -1)
		) {
			/* If there is a . in the source string then the data source is in a
			 * nested object so we loop over the data for each level to get the next
			 * level down. On each loop we test for undefined, and if found immediately
			 * return. This allows entire objects to be missing and sDefaultContent to
			 * be used if defined, rather than throwing an error
			 */
			var fetchData = function (data, type, src) {
				var arrayNotation, funcNotation, out, innerSrc;
	
				if ( src !== "" ) {
					var a = _fnSplitObjNotation( src );
	
					for ( var i=0, iLen=a.length ; i<iLen ; i++ ) {
						// Check if we are dealing with special notation
						arrayNotation = a[i].match(__reArray);
						funcNotation = a[i].match(__reFn);
	
						if ( arrayNotation ) {
							// Array notation
							a[i] = a[i].replace(__reArray, '');
	
							// Condition allows simply [] to be passed in
							if ( a[i] !== "" ) {
								data = data[ a[i] ];
							}
							out = [];
	
							// Get the remainder of the nested object to get
							a.splice( 0, i+1 );
							innerSrc = a.join('.');
	
							// Traverse each entry in the array getting the properties requested
							if ( Array.isArray( data ) ) {
								for ( var j=0, jLen=data.length ; j<jLen ; j++ ) {
									out.push( fetchData( data[j], type, innerSrc ) );
								}
							}
	
							// If a string is given in between the array notation indicators, that
							// is used to join the strings together, otherwise an array is returned
							var join = arrayNotation[0].substring(1, arrayNotation[0].length-1);
							data = (join==="") ? out : out.join(join);
	
							// The inner call to fetchData has already traversed through the remainder
							// of the source requested, so we exit from the loop
							break;
						}
						else if ( funcNotation ) {
							// Function call
							a[i] = a[i].replace(__reFn, '');
							data = data[ a[i] ]();
							continue;
						}
	
						if (data === null || data[ a[i] ] === null) {
							return null;
						}
						else if ( data === undefined || data[ a[i] ] === undefined ) {
							return undefined;
						}

						data = data[ a[i] ];
					}
				}
	
				return data;
			};
	
			return function (data, type) { // row and meta also passed, but not used
				return fetchData( data, type, source );
			};
		}
		else {
			// Array or flat object mapping
			return function (data) { // row and meta also passed, but not used
				return data[source];
			};
		}
	},

	stripHtml: function (mixed) {
		var type = typeof mixed;

		if (type === 'function') {
			_stripHtml = mixed;
			return;
		}
		else if (type === 'string') {
			return _stripHtml(mixed);
		}
		return mixed;
	},

	escapeHtml: function (mixed) {
		var type = typeof mixed;

		if (type === 'function') {
			_escapeHtml = mixed;
			return;
		}
		else if (type === 'string' || Array.isArray(mixed)) {
			return _escapeHtml(mixed);
		}
		return mixed;
	},

	unique: _unique
};



/**
 * Create a mapping object that allows camel case parameters to be looked up
 * for their Hungarian counterparts. The mapping is stored in a private
 * parameter called `_hungarianMap` which can be accessed on the source object.
 *  @param {object} o
 *  @memberof DataTable#oApi
 */
function _fnHungarianMap ( o )
{
	var
		hungarian = 'a aa ai ao as b fn i m o s ',
		match,
		newKey,
		map = {};

	$.each( o, function (key) {
		match = key.match(/^([^A-Z]+?)([A-Z])/);

		if ( match && hungarian.indexOf(match[1]+' ') !== -1 )
		{
			newKey = key.replace( match[0], match[2].toLowerCase() );
			map[ newKey ] = key;

			if ( match[1] === 'o' )
			{
				_fnHungarianMap( o[key] );
			}
		}
	} );

	o._hungarianMap = map;
}


/**
 * Convert from camel case parameters to Hungarian, based on a Hungarian map
 * created by _fnHungarianMap.
 *  @param {object} src The model object which holds all parameters that can be
 *    mapped.
 *  @param {object} user The object to convert from camel case to Hungarian.
 *  @param {boolean} force When set to `true`, properties which already have a
 *    Hungarian value in the `user` object will be overwritten. Otherwise they
 *    won't be.
 *  @memberof DataTable#oApi
 */
function _fnCamelToHungarian ( src, user, force )
{
	if ( ! src._hungarianMap ) {
		_fnHungarianMap( src );
	}

	var hungarianKey;

	$.each( user, function (key) {
		hungarianKey = src._hungarianMap[ key ];

		if ( hungarianKey !== undefined && (force || user[hungarianKey] === undefined) )
		{
			// For objects, we need to buzz down into the object to copy parameters
			if ( hungarianKey.charAt(0) === 'o' )
			{
				// Copy the camelCase options over to the hungarian
				if ( ! user[ hungarianKey ] ) {
					user[ hungarianKey ] = {};
				}
				$.extend( true, user[hungarianKey], user[key] );

				_fnCamelToHungarian( src[hungarianKey], user[hungarianKey], force );
			}
			else {
				user[hungarianKey] = user[ key ];
			}
		}
	} );
}

/**
 * Map one parameter onto another
 *  @param {object} o Object to map
 *  @param {*} knew The new parameter name
 *  @param {*} old The old parameter name
 */
var _fnCompatMap = function ( o, knew, old ) {
	if ( o[ knew ] !== undefined ) {
		o[ old ] = o[ knew ];
	}
};


/**
 * Provide backwards compatibility for the main DT options. Note that the new
 * options are mapped onto the old parameters, so this is an external interface
 * change only.
 *  @param {object} init Object to map
 */
function _fnCompatOpts ( init )
{
	_fnCompatMap( init, 'ordering',      'bSort' );
	_fnCompatMap( init, 'orderMulti',    'bSortMulti' );
	_fnCompatMap( init, 'orderClasses',  'bSortClasses' );
	_fnCompatMap( init, 'orderCellsTop', 'bSortCellsTop' );
	_fnCompatMap( init, 'order',         'aaSorting' );
	_fnCompatMap( init, 'orderFixed',    'aaSortingFixed' );
	_fnCompatMap( init, 'paging',        'bPaginate' );
	_fnCompatMap( init, 'pagingType',    'sPaginationType' );
	_fnCompatMap( init, 'pageLength',    'iDisplayLength' );
	_fnCompatMap( init, 'searching',     'bFilter' );

	// Boolean initialisation of x-scrolling
	if ( typeof init.sScrollX === 'boolean' ) {
		init.sScrollX = init.sScrollX ? '100%' : '';
	}
	if ( typeof init.scrollX === 'boolean' ) {
		init.scrollX = init.scrollX ? '100%' : '';
	}

	// Objects for ordering
	if ( typeof init.bSort === 'object' ) {
		init.orderIndicators = init.bSort.indicators !== undefined ? init.bSort.indicators : true;
		init.orderHandler = init.bSort.handler !== undefined ? init.bSort.handler : true;
		init.bSort = true;
	}
	else if (init.bSort === false) {
		init.orderIndicators = false;
		init.orderHandler = false;
	}
	else if (init.bSort === true) {
		init.orderIndicators = true;
		init.orderHandler = true;
	}

	// Which cells are the title cells?
	if (typeof init.bSortCellsTop === 'boolean') {
		init.titleRow = init.bSortCellsTop;
	}

	// Column search objects are in an array, so it needs to be converted
	// element by element
	var searchCols = init.aoSearchCols;

	if ( searchCols ) {
		for ( var i=0, ien=searchCols.length ; i<ien ; i++ ) {
			if ( searchCols[i] ) {
				_fnCamelToHungarian( DataTable.models.oSearch, searchCols[i] );
			}
		}
	}

	// Enable search delay if server-side processing is enabled
	if (init.serverSide && ! init.searchDelay) {
		init.searchDelay = 400;
	}
}


/**
 * Provide backwards compatibility for column options. Note that the new options
 * are mapped onto the old parameters, so this is an external interface change
 * only.
 *  @param {object} init Object to map
 */
function _fnCompatCols ( init )
{
	_fnCompatMap( init, 'orderable',     'bSortable' );
	_fnCompatMap( init, 'orderData',     'aDataSort' );
	_fnCompatMap( init, 'orderSequence', 'asSorting' );
	_fnCompatMap( init, 'orderDataType', 'sortDataType' );

	// orderData can be given as an integer
	var dataSort = init.aDataSort;
	if ( typeof dataSort === 'number' && ! Array.isArray( dataSort ) ) {
		init.aDataSort = [ dataSort ];
	}
}


/**
 * Browser feature detection for capabilities, quirks
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnBrowserDetect( settings )
{
	// We don't need to do this every time DataTables is constructed, the values
	// calculated are specific to the browser and OS configuration which we
	// don't expect to change between initialisations
	if ( ! DataTable.__browser ) {
		var browser = {};
		DataTable.__browser = browser;

		// Scrolling feature / quirks detection
		var n = $('<div/>')
			.css( {
				position: 'fixed',
				top: 0,
				left: -1 * window.pageXOffset, // allow for scrolling
				height: 1,
				width: 1,
				overflow: 'hidden'
			} )
			.append(
				$('<div/>')
					.css( {
						position: 'absolute',
						top: 1,
						left: 1,
						width: 100,
						overflow: 'scroll'
					} )
					.append(
						$('<div/>')
							.css( {
								width: '100%',
								height: 10
							} )
					)
			)
			.appendTo( 'body' );

		var outer = n.children();
		var inner = outer.children();

		// Get scrollbar width
		browser.barWidth = outer[0].offsetWidth - outer[0].clientWidth;

		// In rtl text layout, some browsers (most, but not all) will place the
		// scrollbar on the left, rather than the right.
		browser.bScrollbarLeft = Math.round( inner.offset().left ) !== 1;

		n.remove();
	}

	$.extend( settings.oBrowser, DataTable.__browser );
	settings.oScroll.iBarWidth = DataTable.__browser.barWidth;
}

/**
 * Add a column to the list used for the table with default values
 *  @param {object} oSettings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnAddColumn( oSettings )
{
	// Add column to aoColumns array
	var oDefaults = DataTable.defaults.column;
	var iCol = oSettings.aoColumns.length;
	var oCol = $.extend( {}, DataTable.models.oColumn, oDefaults, {
		"aDataSort": oDefaults.aDataSort ? oDefaults.aDataSort : [iCol],
		"mData": oDefaults.mData ? oDefaults.mData : iCol,
		idx: iCol,
		searchFixed: {},
		colEl: $('<col>').attr('data-dt-column', iCol)
	} );
	oSettings.aoColumns.push( oCol );

	// Add search object for column specific search. Note that the `searchCols[ iCol ]`
	// passed into extend can be undefined. This allows the user to give a default
	// with only some of the parameters defined, and also not give a default
	var searchCols = oSettings.aoPreSearchCols;
	searchCols[ iCol ] = $.extend( {}, DataTable.models.oSearch, searchCols[ iCol ] );
}


/**
 * Apply options for a column
 *  @param {object} oSettings dataTables settings object
 *  @param {int} iCol column index to consider
 *  @param {object} oOptions object with sType, bVisible and bSearchable etc
 *  @memberof DataTable#oApi
 */
function _fnColumnOptions( oSettings, iCol, oOptions )
{
	var oCol = oSettings.aoColumns[ iCol ];

	/* User specified column options */
	if ( oOptions !== undefined && oOptions !== null )
	{
		// Backwards compatibility
		_fnCompatCols( oOptions );

		// Map camel case parameters to their Hungarian counterparts
		_fnCamelToHungarian( DataTable.defaults.column, oOptions, true );

		/* Backwards compatibility for mDataProp */
		if ( oOptions.mDataProp !== undefined && !oOptions.mData )
		{
			oOptions.mData = oOptions.mDataProp;
		}

		if ( oOptions.sType )
		{
			oCol._sManualType = oOptions.sType;
		}
	
		// `class` is a reserved word in Javascript, so we need to provide
		// the ability to use a valid name for the camel case input
		if ( oOptions.className && ! oOptions.sClass )
		{
			oOptions.sClass = oOptions.className;
		}

		var origClass = oCol.sClass;

		$.extend( oCol, oOptions );
		_fnMap( oCol, oOptions, "sWidth", "sWidthOrig" );

		// Merge class from previously defined classes with this one, rather than just
		// overwriting it in the extend above
		if (origClass !== oCol.sClass) {
			oCol.sClass = origClass + ' ' + oCol.sClass;
		}

		/* iDataSort to be applied (backwards compatibility), but aDataSort will take
		 * priority if defined
		 */
		if ( oOptions.iDataSort !== undefined )
		{
			oCol.aDataSort = [ oOptions.iDataSort ];
		}
		_fnMap( oCol, oOptions, "aDataSort" );
	}

	/* Cache the data get and set functions for speed */
	var mDataSrc = oCol.mData;
	var mData = _fnGetObjectDataFn( mDataSrc );

	// The `render` option can be given as an array to access the helper rendering methods.
	// The first element is the rendering method to use, the rest are the parameters to pass
	if ( oCol.mRender && Array.isArray( oCol.mRender ) ) {
		var copy = oCol.mRender.slice();
		var name = copy.shift();

		oCol.mRender = DataTable.render[name].apply(window, copy);
	}

	oCol._render = oCol.mRender ? _fnGetObjectDataFn( oCol.mRender ) : null;

	var attrTest = function( src ) {
		return typeof src === 'string' && src.indexOf('@') !== -1;
	};
	oCol._bAttrSrc = $.isPlainObject( mDataSrc ) && (
		attrTest(mDataSrc.sort) || attrTest(mDataSrc.type) || attrTest(mDataSrc.filter)
	);
	oCol._setter = null;

	oCol.fnGetData = function (rowData, type, meta) {
		var innerData = mData( rowData, type, undefined, meta );

		return oCol._render && type ?
			oCol._render( innerData, type, rowData, meta ) :
			innerData;
	};
	oCol.fnSetData = function ( rowData, val, meta ) {
		return _fnSetObjectDataFn( mDataSrc )( rowData, val, meta );
	};

	// Indicate if DataTables should read DOM data as an object or array
	// Used in _fnGetRowElements
	if ( typeof mDataSrc !== 'number' && ! oCol._isArrayHost ) {
		oSettings._rowReadObject = true;
	}

	/* Feature sorting overrides column specific when off */
	if ( !oSettings.oFeatures.bSort )
	{
		oCol.bSortable = false;
	}
}


/**
 * Adjust the table column widths for new data. Note: you would probably want to
 * do a redraw after calling this function!
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnAdjustColumnSizing ( settings )
{
	_fnCalculateColumnWidths( settings );
	_fnColumnSizes( settings );

	var scroll = settings.oScroll;
	if ( scroll.sY !== '' || scroll.sX !== '') {
		_fnScrollDraw( settings );
	}

	_fnCallbackFire( settings, null, 'column-sizing', [settings] );
}

/**
 * Apply column sizes
 *
 * @param {*} settings DataTables settings object
 */
function _fnColumnSizes ( settings )
{
	var cols = settings.aoColumns;

	for (var i=0 ; i<cols.length ; i++) {
		var width = _fnColumnsSumWidth(settings, [i], false, false);

		cols[i].colEl.css('width', width);

		if (settings.oScroll.sX) {
			cols[i].colEl.css('min-width', width);
		}
	}
}


/**
 * Convert the index of a visible column to the index in the data array (take account
 * of hidden columns)
 *  @param {object} oSettings dataTables settings object
 *  @param {int} iMatch Visible column index to lookup
 *  @returns {int} i the data index
 *  @memberof DataTable#oApi
 */
function _fnVisibleToColumnIndex( oSettings, iMatch )
{
	var aiVis = _fnGetColumns( oSettings, 'bVisible' );

	return typeof aiVis[iMatch] === 'number' ?
		aiVis[iMatch] :
		null;
}


/**
 * Convert the index of an index in the data array and convert it to the visible
 *   column index (take account of hidden columns)
 *  @param {int} iMatch Column index to lookup
 *  @param {object} oSettings dataTables settings object
 *  @returns {int} i the data index
 *  @memberof DataTable#oApi
 */
function _fnColumnIndexToVisible( oSettings, iMatch )
{
	var aiVis = _fnGetColumns( oSettings, 'bVisible' );
	var iPos = aiVis.indexOf(iMatch);

	return iPos !== -1 ? iPos : null;
}


/**
 * Get the number of visible columns
 *  @param {object} oSettings dataTables settings object
 *  @returns {int} i the number of visible columns
 *  @memberof DataTable#oApi
 */
function _fnVisbleColumns( settings )
{
	var layout = settings.aoHeader;
	var columns = settings.aoColumns;
	var vis = 0;

	if ( layout.length ) {
		for ( var i=0, ien=layout[0].length ; i<ien ; i++ ) {
			if ( columns[i].bVisible && $(layout[0][i].cell).css('display') !== 'none' ) {
				vis++;
			}
		}
	}

	return vis;
}


/**
 * Get an array of column indexes that match a given property
 *  @param {object} oSettings dataTables settings object
 *  @param {string} sParam Parameter in aoColumns to look for - typically
 *    bVisible or bSearchable
 *  @returns {array} Array of indexes with matched properties
 *  @memberof DataTable#oApi
 */
function _fnGetColumns( oSettings, sParam )
{
	var a = [];

	oSettings.aoColumns.map( function(val, i) {
		if ( val[sParam] ) {
			a.push( i );
		}
	} );

	return a;
}

/**
 * Allow the result from a type detection function to be `true` while
 * translating that into a string. Old type detection functions will
 * return the type name if it passes. An obect store would be better,
 * but not backwards compatible.
 *
 * @param {*} typeDetect Object or function for type detection
 * @param {*} res Result from the type detection function
 * @returns Type name or false
 */
function _typeResult (typeDetect, res) {
	return res === true
		? typeDetect._name
		: res;
}

/**
 * Calculate the 'type' of a column
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnColumnTypes ( settings )
{
	var columns = settings.aoColumns;
	var data = settings.aoData;
	var types = DataTable.ext.type.detect;
	var i, ien, j, jen, k, ken;
	var col, detectedType, cache;

	// For each column, spin over the data type detection functions, seeing if one matches
	for ( i=0, ien=columns.length ; i<ien ; i++ ) {
		col = columns[i];
		cache = [];

		if ( ! col.sType && col._sManualType ) {
			col.sType = col._sManualType;
		}
		else if ( ! col.sType ) {
			// With SSP type detection can be unreliable and error prone, so we provide a way
			// to turn it off.
			if (! settings.typeDetect) {
				return;
			}

			for ( j=0, jen=types.length ; j<jen ; j++ ) {
				var typeDetect = types[j];

				// There can be either one, or three type detection functions
				var oneOf = typeDetect.oneOf;
				var allOf = typeDetect.allOf || typeDetect;
				var init = typeDetect.init;
				var one = false;

				detectedType = null;

				// Fast detect based on column assignment
				if (init) {
					detectedType = _typeResult(typeDetect, init(settings, col, i));

					if (detectedType) {
						col.sType = detectedType;
						break;
					}
				}

				for ( k=0, ken=data.length ; k<ken ; k++ ) {
					if (! data[k]) {
						continue;
					}

					// Use a cache array so we only need to get the type data
					// from the formatter once (when using multiple detectors)
					if ( cache[k] === undefined ) {
						cache[k] = _fnGetCellData( settings, k, i, 'type' );
					}

					// Only one data point in the column needs to match this function
					if (oneOf && ! one) {
						one = _typeResult(typeDetect, oneOf( cache[k], settings ));
					}

					// All data points need to match this function
					detectedType = _typeResult(typeDetect, allOf( cache[k], settings ));

					// If null, then this type can't apply to this column, so
					// rather than testing all cells, break out. There is an
					// exception for the last type which is `html`. We need to
					// scan all rows since it is possible to mix string and HTML
					// types
					if ( ! detectedType && j !== types.length-3 ) {
						break;
					}

					// Only a single match is needed for html type since it is
					// bottom of the pile and very similar to string - but it
					// must not be empty
					if ( detectedType === 'html' && ! _empty(cache[k]) ) {
						break;
					}
				}

				// Type is valid for all data points in the column - use this
				// type
				if ( (oneOf && one && detectedType) || (!oneOf && detectedType) ) {
					col.sType = detectedType;
					break;
				}
			}

			// Fall back - if no type was detected, always use string
			if ( ! col.sType ) {
				col.sType = 'string';
			}
		}

		// Set class names for header / footer for auto type classes
		var autoClass = _ext.type.className[col.sType];

		if (autoClass) {
			_columnAutoClass(settings.aoHeader, i, autoClass);
			_columnAutoClass(settings.aoFooter, i, autoClass);
		}

		var renderer = _ext.type.render[col.sType];

		// This can only happen once! There is no way to remove
		// a renderer. After the first time the renderer has
		// already been set so createTr will run the renderer itself.
		if (renderer && ! col._render) {
			col._render = DataTable.util.get(renderer);

			_columnAutoRender(settings, i);
		}
	}
}

/**
 * Apply an auto detected renderer to data which doesn't yet have
 * a renderer
 */
function _columnAutoRender(settings, colIdx) {
	var data = settings.aoData;

	for (var i=0 ; i<data.length ; i++) {
		if (data[i].nTr) {
			// We have to update the display here since there is no
			// invalidation check for the data
			var display = _fnGetCellData( settings, i, colIdx, 'display' );

			data[i].displayData[colIdx] = display;
			_fnWriteCell(data[i].anCells[colIdx], display);

			// No need to update sort / filter data since it has
			// been invalidated and will be re-read with the
			// renderer now applied
		}
	}
}

/**
 * Apply a class name to a column's header cells
 */
function _columnAutoClass(container, colIdx, className) {
	container.forEach(function (row) {
		if (row[colIdx] && row[colIdx].unique) {
			_addClass(row[colIdx].cell, className);
		}
	});
}

/**
 * Take the column definitions and static columns arrays and calculate how
 * they relate to column indexes. The callback function will then apply the
 * definition found for a column to a suitable configuration object.
 *  @param {object} oSettings dataTables settings object
 *  @param {array} aoColDefs The aoColumnDefs array that is to be applied
 *  @param {array} aoCols The aoColumns array that defines columns individually
 *  @param {array} headerLayout Layout for header as it was loaded
 *  @param {function} fn Callback function - takes two parameters, the calculated
 *    column index and the definition for that column.
 *  @memberof DataTable#oApi
 */
function _fnApplyColumnDefs( oSettings, aoColDefs, aoCols, headerLayout, fn )
{
	var i, iLen, j, jLen, k, kLen, def;
	var columns = oSettings.aoColumns;

	if ( aoCols ) {
		for ( i=0, iLen=aoCols.length ; i<iLen ; i++ ) {
			if (aoCols[i] && aoCols[i].name) {
				columns[i].sName = aoCols[i].name;
			}
		}
	}

	// Column definitions with aTargets
	if ( aoColDefs )
	{
		/* Loop over the definitions array - loop in reverse so first instance has priority */
		for ( i=aoColDefs.length-1 ; i>=0 ; i-- )
		{
			def = aoColDefs[i];

			/* Each definition can target multiple columns, as it is an array */
			var aTargets = def.target !== undefined
				? def.target
				: def.targets !== undefined
					? def.targets
					: def.aTargets;

			if ( ! Array.isArray( aTargets ) )
			{
				aTargets = [ aTargets ];
			}

			for ( j=0, jLen=aTargets.length ; j<jLen ; j++ )
			{
				var target = aTargets[j];

				if ( typeof target === 'number' && target >= 0 )
				{
					/* Add columns that we don't yet know about */
					while( columns.length <= target )
					{
						_fnAddColumn( oSettings );
					}

					/* Integer, basic index */
					fn( target, def );
				}
				else if ( typeof target === 'number' && target < 0 )
				{
					/* Negative integer, right to left column counting */
					fn( columns.length+target, def );
				}
				else if ( typeof target === 'string' )
				{
					for ( k=0, kLen=columns.length ; k<kLen ; k++ ) {
						if (target === '_all') {
							// Apply to all columns
							fn( k, def );
						}
						else if (target.indexOf(':name') !== -1) {
							// Column selector
							if (columns[k].sName === target.replace(':name', '')) {
								fn( k, def );
							}
						}
						else {
							// Cell selector
							headerLayout.forEach(function (row) {
								if (row[k]) {
									var cell = $(row[k].cell);

									// Legacy support. Note that it means that we don't support
									// an element name selector only, since they are treated as
									// class names for 1.x compat.
									if (target.match(/^[a-z][\w-]*$/i)) {
										target = '.' + target;
									}

									if (cell.is( target )) {
										fn( k, def );
									}
								}
							});
						}
					}
				}
			}
		}
	}

	// Statically defined columns array
	if ( aoCols ) {
		for ( i=0, iLen=aoCols.length ; i<iLen ; i++ ) {
			fn( i, aoCols[i] );
		}
	}
}


/**
 * Get the width for a given set of columns
 *
 * @param {*} settings DataTables settings object
 * @param {*} targets Columns - comma separated string or array of numbers
 * @param {*} original Use the original width (true) or calculated (false)
 * @param {*} incVisible Include visible columns (true) or not (false)
 * @returns Combined CSS value
 */
function _fnColumnsSumWidth( settings, targets, original, incVisible ) {
	if ( ! Array.isArray( targets ) ) {
		targets = _fnColumnsFromHeader( targets );
	}

	var sum = 0;
	var unit;
	var columns = settings.aoColumns;
	
	for ( var i=0, ien=targets.length ; i<ien ; i++ ) {
		var column = columns[ targets[i] ];
		var definedWidth = original ?
			column.sWidthOrig :
			column.sWidth;

		if ( ! incVisible && column.bVisible === false ) {
			continue;
		}

		if ( definedWidth === null || definedWidth === undefined ) {
			return null; // can't determine a defined width - browser defined
		}
		else if ( typeof definedWidth === 'number' ) {
			unit = 'px';
			sum += definedWidth;
		}
		else {
			var matched = definedWidth.match(/([\d\.]+)([^\d]*)/);

			if ( matched ) {
				sum += matched[1] * 1;
				unit = matched.length === 3 ?
					matched[2] :
					'px';
			}
		}
	}

	return sum + unit;
}

function _fnColumnsFromHeader( cell )
{
	var attr = $(cell).closest('[data-dt-column]').attr('data-dt-column');

	if ( ! attr ) {
		return [];
	}

	return attr.split(',').map( function (val) {
		return val * 1;
	} );
}
/**
 * Add a data array to the table, creating DOM node etc. This is the parallel to
 * _fnGatherData, but for adding rows from a Javascript source, rather than a
 * DOM source.
 *  @param {object} settings dataTables settings object
 *  @param {array} data data array to be added
 *  @param {node} [tr] TR element to add to the table - optional. If not given,
 *    DataTables will create a row automatically
 *  @param {array} [tds] Array of TD|TH elements for the row - must be given
 *    if nTr is.
 *  @returns {int} >=0 if successful (index of new aoData entry), -1 if failed
 *  @memberof DataTable#oApi
 */
function _fnAddData ( settings, dataIn, tr, tds )
{
	/* Create the object for storing information about this new row */
	var rowIdx = settings.aoData.length;
	var rowModel = $.extend( true, {}, DataTable.models.oRow, {
		src: tr ? 'dom' : 'data',
		idx: rowIdx
	} );

	rowModel._aData = dataIn;
	settings.aoData.push( rowModel );

	var columns = settings.aoColumns;

	for ( var i=0, iLen=columns.length ; i<iLen ; i++ )
	{
		// Invalidate the column types as the new data needs to be revalidated
		columns[i].sType = null;
	}

	/* Add to the display array */
	settings.aiDisplayMaster.push( rowIdx );

	var id = settings.rowIdFn( dataIn );
	if ( id !== undefined ) {
		settings.aIds[ id ] = rowModel;
	}

	/* Create the DOM information, or register it if already present */
	if ( tr || ! settings.oFeatures.bDeferRender )
	{
		_fnCreateTr( settings, rowIdx, tr, tds );
	}

	return rowIdx;
}


/**
 * Add one or more TR elements to the table. Generally we'd expect to
 * use this for reading data from a DOM sourced table, but it could be
 * used for an TR element. Note that if a TR is given, it is used (i.e.
 * it is not cloned).
 *  @param {object} settings dataTables settings object
 *  @param {array|node|jQuery} trs The TR element(s) to add to the table
 *  @returns {array} Array of indexes for the added rows
 *  @memberof DataTable#oApi
 */
function _fnAddTr( settings, trs )
{
	var row;

	// Allow an individual node to be passed in
	if ( ! (trs instanceof $) ) {
		trs = $(trs);
	}

	return trs.map( function (i, el) {
		row = _fnGetRowElements( settings, el );
		return _fnAddData( settings, row.data, el, row.cells );
	} );
}


/**
 * Get the data for a given cell from the internal cache, taking into account data mapping
 *  @param {object} settings dataTables settings object
 *  @param {int} rowIdx aoData row id
 *  @param {int} colIdx Column index
 *  @param {string} type data get type ('display', 'type' 'filter|search' 'sort|order')
 *  @returns {*} Cell data
 *  @memberof DataTable#oApi
 */
function _fnGetCellData( settings, rowIdx, colIdx, type )
{
	if (type === 'search') {
		type = 'filter';
	}
	else if (type === 'order') {
		type = 'sort';
	}

	var row = settings.aoData[rowIdx];

	if (! row) {
		return undefined;
	}

	var draw           = settings.iDraw;
	var col            = settings.aoColumns[colIdx];
	var rowData        = row._aData;
	var defaultContent = col.sDefaultContent;
	var cellData       = col.fnGetData( rowData, type, {
		settings: settings,
		row:      rowIdx,
		col:      colIdx
	} );

	// Allow for a node being returned for non-display types
	if (type !== 'display' && cellData && typeof cellData === 'object' && cellData.nodeName) {
		cellData = cellData.innerHTML;
	}

	if ( cellData === undefined ) {
		if ( settings.iDrawError != draw && defaultContent === null ) {
			_fnLog( settings, 0, "Requested unknown parameter "+
				(typeof col.mData=='function' ? '{function}' : "'"+col.mData+"'")+
				" for row "+rowIdx+", column "+colIdx, 4 );
			settings.iDrawError = draw;
		}
		return defaultContent;
	}

	// When the data source is null and a specific data type is requested (i.e.
	// not the original data), we can use default column data
	if ( (cellData === rowData || cellData === null) && defaultContent !== null && type !== undefined ) {
		cellData = defaultContent;
	}
	else if ( typeof cellData === 'function' ) {
		// If the data source is a function, then we run it and use the return,
		// executing in the scope of the data object (for instances)
		return cellData.call( rowData );
	}

	if ( cellData === null && type === 'display' ) {
		return '';
	}

	if ( type === 'filter' ) {
		var fomatters = DataTable.ext.type.search;

		if ( fomatters[ col.sType ] ) {
			cellData = fomatters[ col.sType ]( cellData );
		}
	}

	return cellData;
}


/**
 * Set the value for a specific cell, into the internal data cache
 *  @param {object} settings dataTables settings object
 *  @param {int} rowIdx aoData row id
 *  @param {int} colIdx Column index
 *  @param {*} val Value to set
 *  @memberof DataTable#oApi
 */
function _fnSetCellData( settings, rowIdx, colIdx, val )
{
	var col     = settings.aoColumns[colIdx];
	var rowData = settings.aoData[rowIdx]._aData;

	col.fnSetData( rowData, val, {
		settings: settings,
		row:      rowIdx,
		col:      colIdx
	}  );
}

/**
 * Write a value to a cell
 * @param {*} td Cell
 * @param {*} val Value
 */
function _fnWriteCell(td, val)
{
	if (val && typeof val === 'object' && val.nodeName) {
		$(td)
			.empty()
			.append(val);
	}
	else {
		td.innerHTML = val;
	}
}


// Private variable that is used to match action syntax in the data property object
var __reArray = /\[.*?\]$/;
var __reFn = /\(\)$/;

/**
 * Split string on periods, taking into account escaped periods
 * @param  {string} str String to split
 * @return {array} Split string
 */
function _fnSplitObjNotation( str )
{
	var parts = str.match(/(\\.|[^.])+/g) || [''];

	return parts.map( function ( s ) {
		return s.replace(/\\\./g, '.');
	} );
}


/**
 * Return a function that can be used to get data from a source object, taking
 * into account the ability to use nested objects as a source
 *  @param {string|int|function} mSource The data source for the object
 *  @returns {function} Data get function
 *  @memberof DataTable#oApi
 */
var _fnGetObjectDataFn = DataTable.util.get;


/**
 * Return a function that can be used to set data from a source object, taking
 * into account the ability to use nested objects as a source
 *  @param {string|int|function} mSource The data source for the object
 *  @returns {function} Data set function
 *  @memberof DataTable#oApi
 */
var _fnSetObjectDataFn = DataTable.util.set;


/**
 * Return an array with the full table data
 *  @param {object} oSettings dataTables settings object
 *  @returns array {array} aData Master data array
 *  @memberof DataTable#oApi
 */
function _fnGetDataMaster ( settings )
{
	return _pluck( settings.aoData, '_aData' );
}


/**
 * Nuke the table
 *  @param {object} oSettings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnClearTable( settings )
{
	settings.aoData.length = 0;
	settings.aiDisplayMaster.length = 0;
	settings.aiDisplay.length = 0;
	settings.aIds = {};
}


/**
 * Mark cached data as invalid such that a re-read of the data will occur when
 * the cached data is next requested. Also update from the data source object.
 *
 * @param {object} settings DataTables settings object
 * @param {int}    rowIdx   Row index to invalidate
 * @param {string} [src]    Source to invalidate from: undefined, 'auto', 'dom'
 *     or 'data'
 * @param {int}    [colIdx] Column index to invalidate. If undefined the whole
 *     row will be invalidated
 * @memberof DataTable#oApi
 *
 * @todo For the modularisation of v1.11 this will need to become a callback, so
 *   the sort and filter methods can subscribe to it. That will required
 *   initialisation options for sorting, which is why it is not already baked in
 */
function _fnInvalidate( settings, rowIdx, src, colIdx )
{
	var row = settings.aoData[ rowIdx ];
	var i, ien;

	// Remove the cached data for the row
	row._aSortData = null;
	row._aFilterData = null;
	row.displayData = null;

	// Are we reading last data from DOM or the data object?
	if ( src === 'dom' || ((! src || src === 'auto') && row.src === 'dom') ) {
		// Read the data from the DOM
		row._aData = _fnGetRowElements(
				settings, row, colIdx, colIdx === undefined ? undefined : row._aData
			)
			.data;
	}
	else {
		// Reading from data object, update the DOM
		var cells = row.anCells;
		var display = _fnGetRowDisplay(settings, rowIdx);

		if ( cells ) {
			if ( colIdx !== undefined ) {
				_fnWriteCell(cells[colIdx], display[colIdx]);
			}
			else {
				for ( i=0, ien=cells.length ; i<ien ; i++ ) {
					_fnWriteCell(cells[i], display[i]);
				}
			}
		}
	}

	// Column specific invalidation
	var cols = settings.aoColumns;
	if ( colIdx !== undefined ) {
		// Type - the data might have changed
		cols[ colIdx ].sType = null;

		// Max length string. Its a fairly cheep recalculation, so not worth
		// something more complicated
		cols[ colIdx ].maxLenString = null;
	}
	else {
		for ( i=0, ien=cols.length ; i<ien ; i++ ) {
			cols[i].sType = null;
			cols[i].maxLenString = null;
		}

		// Update DataTables special `DT_*` attributes for the row
		_fnRowAttributes( settings, row );
	}
}


/**
 * Build a data source object from an HTML row, reading the contents of the
 * cells that are in the row.
 *
 * @param {object} settings DataTables settings object
 * @param {node|object} TR element from which to read data or existing row
 *   object from which to re-read the data from the cells
 * @param {int} [colIdx] Optional column index
 * @param {array|object} [d] Data source object. If `colIdx` is given then this
 *   parameter should also be given and will be used to write the data into.
 *   Only the column in question will be written
 * @returns {object} Object with two parameters: `data` the data read, in
 *   document order, and `cells` and array of nodes (they can be useful to the
 *   caller, so rather than needing a second traversal to get them, just return
 *   them from here).
 * @memberof DataTable#oApi
 */
function _fnGetRowElements( settings, row, colIdx, d )
{
	var
		tds = [],
		td = row.firstChild,
		name, col, i=0, contents,
		columns = settings.aoColumns,
		objectRead = settings._rowReadObject;

	// Allow the data object to be passed in, or construct
	d = d !== undefined ?
		d :
		objectRead ?
			{} :
			[];

	var attr = function ( str, td  ) {
		if ( typeof str === 'string' ) {
			var idx = str.indexOf('@');

			if ( idx !== -1 ) {
				var attr = str.substring( idx+1 );
				var setter = _fnSetObjectDataFn( str );
				setter( d, td.getAttribute( attr ) );
			}
		}
	};

	// Read data from a cell and store into the data object
	var cellProcess = function ( cell ) {
		if ( colIdx === undefined || colIdx === i ) {
			col = columns[i];
			contents = (cell.innerHTML).trim();

			if ( col && col._bAttrSrc ) {
				var setter = _fnSetObjectDataFn( col.mData._ );
				setter( d, contents );

				attr( col.mData.sort, cell );
				attr( col.mData.type, cell );
				attr( col.mData.filter, cell );
			}
			else {
				// Depending on the `data` option for the columns the data can
				// be read to either an object or an array.
				if ( objectRead ) {
					if ( ! col._setter ) {
						// Cache the setter function
						col._setter = _fnSetObjectDataFn( col.mData );
					}
					col._setter( d, contents );
				}
				else {
					d[i] = contents;
				}
			}
		}

		i++;
	};

	if ( td ) {
		// `tr` element was passed in
		while ( td ) {
			name = td.nodeName.toUpperCase();

			if ( name == "TD" || name == "TH" ) {
				cellProcess( td );
				tds.push( td );
			}

			td = td.nextSibling;
		}
	}
	else {
		// Existing row object passed in
		tds = row.anCells;

		for ( var j=0, jen=tds.length ; j<jen ; j++ ) {
			cellProcess( tds[j] );
		}
	}

	// Read the ID from the DOM if present
	var rowNode = row.firstChild ? row : row.nTr;

	if ( rowNode ) {
		var id = rowNode.getAttribute( 'id' );

		if ( id ) {
			_fnSetObjectDataFn( settings.rowId )( d, id );
		}
	}

	return {
		data: d,
		cells: tds
	};
}

/**
 * Render and cache a row's display data for the columns, if required
 * @returns 
 */
function _fnGetRowDisplay (settings, rowIdx) {
	var rowModal = settings.aoData[rowIdx];
	var columns = settings.aoColumns;

	if (! rowModal.displayData) {
		// Need to render and cache
		rowModal.displayData = [];
	
		for ( var colIdx=0, len=columns.length ; colIdx<len ; colIdx++ ) {
			rowModal.displayData.push(
				_fnGetCellData( settings, rowIdx, colIdx, 'display' )
			);
		}
	}

	return rowModal.displayData;
}

/**
 * Create a new TR element (and it's TD children) for a row
 *  @param {object} oSettings dataTables settings object
 *  @param {int} iRow Row to consider
 *  @param {node} [nTrIn] TR element to add to the table - optional. If not given,
 *    DataTables will create a row automatically
 *  @param {array} [anTds] Array of TD|TH elements for the row - must be given
 *    if nTr is.
 *  @memberof DataTable#oApi
 */
function _fnCreateTr ( oSettings, iRow, nTrIn, anTds )
{
	var
		row = oSettings.aoData[iRow],
		rowData = row._aData,
		cells = [],
		nTr, nTd, oCol,
		i, iLen, create,
		trClass = oSettings.oClasses.tbody.row;

	if ( row.nTr === null )
	{
		nTr = nTrIn || document.createElement('tr');

		row.nTr = nTr;
		row.anCells = cells;

		_addClass(nTr, trClass);

		/* Use a private property on the node to allow reserve mapping from the node
		 * to the aoData array for fast look up
		 */
		nTr._DT_RowIndex = iRow;

		/* Special parameters can be given by the data source to be used on the row */
		_fnRowAttributes( oSettings, row );

		/* Process each column */
		for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
		{
			oCol = oSettings.aoColumns[i];
			create = nTrIn && anTds[i] ? false : true;

			nTd = create ? document.createElement( oCol.sCellType ) : anTds[i];

			if (! nTd) {
				_fnLog( oSettings, 0, 'Incorrect column count', 18 );
			}

			nTd._DT_CellIndex = {
				row: iRow,
				column: i
			};
			
			cells.push( nTd );
			
			var display = _fnGetRowDisplay(oSettings, iRow);

			// Need to create the HTML if new, or if a rendering function is defined
			if (
				create ||
				(
					(oCol.mRender || oCol.mData !== i) &&
					(!$.isPlainObject(oCol.mData) || oCol.mData._ !== i+'.display')
				)
			) {
				_fnWriteCell(nTd, display[i]);
			}

			// column class
			_addClass(nTd, oCol.sClass);

			// Visibility - add or remove as required
			if ( oCol.bVisible && create )
			{
				nTr.appendChild( nTd );
			}
			else if ( ! oCol.bVisible && ! create )
			{
				nTd.parentNode.removeChild( nTd );
			}

			if ( oCol.fnCreatedCell )
			{
				oCol.fnCreatedCell.call( oSettings.oInstance,
					nTd, _fnGetCellData( oSettings, iRow, i ), rowData, iRow, i
				);
			}
		}

		_fnCallbackFire( oSettings, 'aoRowCreatedCallback', 'row-created', [nTr, rowData, iRow, cells] );
	}
	else {
		_addClass(row.nTr, trClass);
	}
}


/**
 * Add attributes to a row based on the special `DT_*` parameters in a data
 * source object.
 *  @param {object} settings DataTables settings object
 *  @param {object} DataTables row object for the row to be modified
 *  @memberof DataTable#oApi
 */
function _fnRowAttributes( settings, row )
{
	var tr = row.nTr;
	var data = row._aData;

	if ( tr ) {
		var id = settings.rowIdFn( data );

		if ( id ) {
			tr.id = id;
		}

		if ( data.DT_RowClass ) {
			// Remove any classes added by DT_RowClass before
			var a = data.DT_RowClass.split(' ');
			row.__rowc = row.__rowc ?
				_unique( row.__rowc.concat( a ) ) :
				a;

			$(tr)
				.removeClass( row.__rowc.join(' ') )
				.addClass( data.DT_RowClass );
		}

		if ( data.DT_RowAttr ) {
			$(tr).attr( data.DT_RowAttr );
		}

		if ( data.DT_RowData ) {
			$(tr).data( data.DT_RowData );
		}
	}
}


/**
 * Create the HTML header for the table
 *  @param {object} oSettings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnBuildHead( settings, side )
{
	var classes = settings.oClasses;
	var columns = settings.aoColumns;
	var i, ien, row;
	var target = side === 'header'
		? settings.nTHead
		: settings.nTFoot;
	var titleProp = side === 'header' ? 'sTitle' : side;

	// Footer might be defined
	if (! target) {
		return;
	}

	// If no cells yet and we have content for them, then create
	if (side === 'header' || _pluck(settings.aoColumns, titleProp).join('')) {
		row = $('tr', target);

		// Add a row if needed
		if (! row.length) {
			row = $('<tr/>').appendTo(target)
		}

		// Add the number of cells needed to make up to the number of columns
		if (row.length === 1) {
			var cellCount = 0;
			
			$('td, th', row).each(function () {
				cellCount += this.colSpan;
			});

			for ( i=cellCount, ien=columns.length ; i<ien ; i++ ) {
				$('<th/>')
					.html( columns[i][titleProp] || '' )
					.appendTo( row );
			}
		}
	}

	var detected = _fnDetectHeader( settings, target, true );

	if (side === 'header') {
		settings.aoHeader = detected;
		$('tr', target).addClass(classes.thead.row);
	}
	else {
		settings.aoFooter = detected;
		$('tr', target).addClass(classes.tfoot.row);
	}

	// Every cell needs to be passed through the renderer
	$(target).children('tr').children('th, td')
		.each( function () {
			_fnRenderer( settings, side )(
				settings, $(this), classes
			);
		} );
}

/**
 * Build a layout structure for a header or footer
 *
 * @param {*} settings DataTables settings
 * @param {*} source Source layout array
 * @param {*} incColumns What columns should be included
 * @returns Layout array in column index order
 */
function _fnHeaderLayout( settings, source, incColumns )
{
	var row, column, cell;
	var local = [];
	var structure = [];
	var columns = settings.aoColumns;
	var columnCount = columns.length;
	var rowspan, colspan;

	if ( ! source ) {
		return;
	}

	// Default is to work on only visible columns
	if ( ! incColumns ) {
		incColumns = _range(columnCount)
			.filter(function (idx) {
				return columns[idx].bVisible;
			});
	}

	// Make a copy of the master layout array, but with only the columns we want
	for ( row=0 ; row<source.length ; row++ ) {
		// Remove any columns we haven't selected
		local[row] = source[row].slice().filter(function (cell, i) {
			return incColumns.includes(i);
		});

		// Prep the structure array - it needs an element for each row
		structure.push( [] );
	}

	for ( row=0 ; row<local.length ; row++ ) {
		for ( column=0 ; column<local[row].length ; column++ ) {
			rowspan = 1;
			colspan = 1;

			// Check to see if there is already a cell (row/colspan) covering our target
			// insert point. If there is, then there is nothing to do.
			if ( structure[row][column] === undefined ) {
				cell = local[row][column].cell;

				// Expand for rowspan
				while (
					local[row+rowspan] !== undefined &&
					local[row][column].cell == local[row+rowspan][column].cell
				) {
					structure[row+rowspan][column] = null;
					rowspan++;
				}

				// And for colspan
				while (
					local[row][column+colspan] !== undefined &&
					local[row][column].cell == local[row][column+colspan].cell
				) {
					// Which also needs to go over rows
					for ( var k=0 ; k<rowspan ; k++ ) {
						structure[row+k][column+colspan] = null;
					}

					colspan++;
				}

				var titleSpan = $('span.dt-column-title', cell);

				structure[row][column] = {
					cell: cell,
					colspan: colspan,
					rowspan: rowspan,
					title: titleSpan.length
						? titleSpan.html()
						: $(cell).html()
				};
			}
		}
	}

	return structure;
}


/**
 * Draw the header (or footer) element based on the column visibility states.
 *
 *  @param object oSettings dataTables settings object
 *  @param array aoSource Layout array from _fnDetectHeader
 *  @memberof DataTable#oApi
 */
function _fnDrawHead( settings, source )
{
	var layout = _fnHeaderLayout(settings, source);
	var tr, n;

	for ( var row=0 ; row<source.length ; row++ ) {
		tr = source[row].row;

		// All cells are going to be replaced, so empty out the row
		// Can't use $().empty() as that kills event handlers
		if (tr) {
			while( (n = tr.firstChild) ) {
				tr.removeChild( n );
			}
		}

		for ( var column=0 ; column<layout[row].length ; column++ ) {
			var point = layout[row][column];

			if (point) {
				$(point.cell)
					.appendTo(tr)
					.attr('rowspan', point.rowspan)
					.attr('colspan', point.colspan);
			}
		}
	}
}


/**
 * Insert the required TR nodes into the table for display
 *  @param {object} oSettings dataTables settings object
 *  @param ajaxComplete true after ajax call to complete rendering
 *  @memberof DataTable#oApi
 */
function _fnDraw( oSettings, ajaxComplete )
{
	// Allow for state saving and a custom start position
	_fnStart( oSettings );

	/* Provide a pre-callback function which can be used to cancel the draw is false is returned */
	var aPreDraw = _fnCallbackFire( oSettings, 'aoPreDrawCallback', 'preDraw', [oSettings] );
	if ( aPreDraw.indexOf(false) !== -1 )
	{
		_fnProcessingDisplay( oSettings, false );
		return;
	}

	var anRows = [];
	var iRowCount = 0;
	var bServerSide = _fnDataSource( oSettings ) == 'ssp';
	var aiDisplay = oSettings.aiDisplay;
	var iDisplayStart = oSettings._iDisplayStart;
	var iDisplayEnd = oSettings.fnDisplayEnd();
	var columns = oSettings.aoColumns;
	var body = $(oSettings.nTBody);

	oSettings.bDrawing = true;

	/* Server-side processing draw intercept */
	if ( oSettings.deferLoading )
	{
		oSettings.deferLoading = false;
		oSettings.iDraw++;
		_fnProcessingDisplay( oSettings, false );
	}
	else if ( !bServerSide )
	{
		oSettings.iDraw++;
	}
	else if ( !oSettings.bDestroying && !ajaxComplete)
	{
		// Show loading message for server-side processing
		if (oSettings.iDraw === 0) {
			body.empty().append(_emptyRow(oSettings));
		}

		_fnAjaxUpdate( oSettings );
		return;
	}

	if ( aiDisplay.length !== 0 )
	{
		var iStart = bServerSide ? 0 : iDisplayStart;
		var iEnd = bServerSide ? oSettings.aoData.length : iDisplayEnd;

		for ( var j=iStart ; j<iEnd ; j++ )
		{
			var iDataIndex = aiDisplay[j];
			var aoData = oSettings.aoData[ iDataIndex ];
			if ( aoData.nTr === null )
			{
				_fnCreateTr( oSettings, iDataIndex );
			}

			var nRow = aoData.nTr;

			// Add various classes as needed
			for (var i=0 ; i<columns.length ; i++) {
				var col = columns[i];
				var td = aoData.anCells[i];

				_addClass(td, _ext.type.className[col.sType]); // auto class
				_addClass(td, oSettings.oClasses.tbody.cell); // all cells
			}

			// Row callback functions - might want to manipulate the row
			// iRowCount and j are not currently documented. Are they at all
			// useful?
			_fnCallbackFire( oSettings, 'aoRowCallback', null,
				[nRow, aoData._aData, iRowCount, j, iDataIndex] );

			anRows.push( nRow );
			iRowCount++;
		}
	}
	else
	{
		anRows[ 0 ] = _emptyRow(oSettings);
	}

	/* Header and footer callbacks */
	_fnCallbackFire( oSettings, 'aoHeaderCallback', 'header', [ $(oSettings.nTHead).children('tr')[0],
		_fnGetDataMaster( oSettings ), iDisplayStart, iDisplayEnd, aiDisplay ] );

	_fnCallbackFire( oSettings, 'aoFooterCallback', 'footer', [ $(oSettings.nTFoot).children('tr')[0],
		_fnGetDataMaster( oSettings ), iDisplayStart, iDisplayEnd, aiDisplay ] );

	// replaceChildren is faster, but only became widespread in 2020,
	// so a fall back in jQuery is provided for older browsers.
	if (body[0].replaceChildren) {
		body[0].replaceChildren.apply(body[0], anRows);
	}
	else {
		body.children().detach();
		body.append( $(anRows) );
	}

	// Empty table needs a specific class
	$(oSettings.nTableWrapper).toggleClass('dt-empty-footer', $('tr', oSettings.nTFoot).length === 0);

	/* Call all required callback functions for the end of a draw */
	_fnCallbackFire( oSettings, 'aoDrawCallback', 'draw', [oSettings], true );

	/* Draw is complete, sorting and filtering must be as well */
	oSettings.bSorted = false;
	oSettings.bFiltered = false;
	oSettings.bDrawing = false;
}


/**
 * Redraw the table - taking account of the various features which are enabled
 *  @param {object} oSettings dataTables settings object
 *  @param {boolean} [holdPosition] Keep the current paging position. By default
 *    the paging is reset to the first page
 *  @memberof DataTable#oApi
 */
function _fnReDraw( settings, holdPosition, recompute )
{
	var
		features = settings.oFeatures,
		sort     = features.bSort,
		filter   = features.bFilter;

	if (recompute === undefined || recompute === true) {
		// Resolve any column types that are unknown due to addition or invalidation
		_fnColumnTypes( settings );

		if ( sort ) {
			_fnSort( settings );
		}

		if ( filter ) {
			_fnFilterComplete( settings, settings.oPreviousSearch );
		}
		else {
			// No filtering, so we want to just use the display master
			settings.aiDisplay = settings.aiDisplayMaster.slice();
		}
	}

	if ( holdPosition !== true ) {
		settings._iDisplayStart = 0;
	}

	// Let any modules know about the draw hold position state (used by
	// scrolling internally)
	settings._drawHold = holdPosition;

	_fnDraw( settings );

	settings.api.one('draw', function () {
		settings._drawHold = false;
	});
}


/*
 * Table is empty - create a row with an empty message in it
 */
function _emptyRow ( settings ) {
	var oLang = settings.oLanguage;
	var zero = oLang.sZeroRecords;
	var dataSrc = _fnDataSource( settings );

	// Make use of the fact that settings.json is only set once the initial data has
	// been loaded. Show loading when that isn't the case
	if ((dataSrc === 'ssp' || dataSrc === 'ajax') && ! settings.json) {
		zero = oLang.sLoadingRecords;
	}
	else if ( oLang.sEmptyTable && settings.fnRecordsTotal() === 0 )
	{
		zero = oLang.sEmptyTable;
	}

	return $( '<tr/>' )
		.append( $('<td />', {
			'colSpan': _fnVisbleColumns( settings ),
			'class':   settings.oClasses.empty.row
		} ).html( zero ) )[0];
}


/**
 * Expand the layout items into an object for the rendering function
 */
function _layoutItems (row, align, items) {
	if ( Array.isArray(items)) {
		for (var i=0 ; i<items.length ; i++) {
			_layoutItems(row, align, items[i]);
		}

		return;
	}

	var rowCell = row[align];

	// If it is an object, then there can be multiple features contained in it
	if ( $.isPlainObject( items ) ) {
		// A feature plugin cannot be named "features" due to this check
		if (items.features) {
			if (items.rowId) {
				row.id = items.rowId;
			}
			if (items.rowClass) {
				row.className = items.rowClass;
			}

			rowCell.id = items.id;
			rowCell.className = items.className;

			_layoutItems(row, align, items.features);
		}
		else {
			Object.keys(items).map(function (key) {
				rowCell.contents.push( {
					feature: key,
					opts: items[key]
				});
			});
		}
	}
	else {
		rowCell.contents.push(items);
	}
}

/**
 * Find, or create a layout row
 */
function _layoutGetRow(rows, rowNum, align) {
	var row;

	// Find existing rows
	for (var i=0; i<rows.length; i++) {
		row = rows[i];

		if (row.rowNum === rowNum) {
			// full is on its own, but start and end share a row
			if (
				(align === 'full' && row.full) ||
				((align === 'start' || align === 'end') && (row.start || row.end))
			) {
				if (! row[align]) {
					row[align] = {
						contents: []
					};
				}

				return row;
			}
		}
	}

	// If we get this far, then there was no match, create a new row
	row = {
		rowNum: rowNum	
	};

	row[align] = {
		contents: []
	};

	rows.push(row);

	return row;
}

/**
 * Convert a `layout` object given by a user to the object structure needed
 * for the renderer. This is done twice, once for above and once for below
 * the table. Ordering must also be considered.
 *
 * @param {*} settings DataTables settings object
 * @param {*} layout Layout object to convert
 * @param {string} side `top` or `bottom`
 * @returns Converted array structure - one item for each row.
 */
function _layoutArray ( settings, layout, side ) {
	var rows = [];
	
	// Split out into an array
	$.each( layout, function ( pos, items ) {
		if (items === null) {
			return;
		}

		var parts = pos.match(/^([a-z]+)([0-9]*)([A-Za-z]*)$/);
		var rowNum = parts[2]
			? parts[2] * 1
			: 0;
		var align = parts[3]
			? parts[3].toLowerCase()
			: 'full';

		// Filter out the side we aren't interested in
		if (parts[1] !== side) {
			return;
		}

		// Get or create the row we should attach to
		var row = _layoutGetRow(rows, rowNum, align);

		_layoutItems(row, align, items);
	});

	// Order by item identifier
	rows.sort( function ( a, b ) {
		var order1 = a.rowNum;
		var order2 = b.rowNum;

		// If both in the same row, then the row with `full` comes first
		if (order1 === order2) {
			var ret = a.full && ! b.full ? -1 : 1;

			return side === 'bottom'
				? ret * -1
				: ret;
		}

		return order2 - order1;
	} );

	// Invert for below the table
	if ( side === 'bottom' ) {
		rows.reverse();
	}

	for (var row = 0; row<rows.length; row++) {
		delete rows[row].rowNum;

		_layoutResolve(settings, rows[row]);
	}

	return rows;
}


/**
 * Convert the contents of a row's layout object to nodes that can be inserted
 * into the document by a renderer. Execute functions, look up plug-ins, etc.
 *
 * @param {*} settings DataTables settings object
 * @param {*} row Layout object for this row
 */
function _layoutResolve( settings, row ) {
	var getFeature = function (feature, opts) {
		if ( ! _ext.features[ feature ] ) {
			_fnLog( settings, 0, 'Unknown feature: '+ feature );
		}

		return _ext.features[ feature ].apply( this, [settings, opts] );
	};

	var resolve = function ( item ) {
		if (! row[ item ]) {
			return;
		}

		var line = row[ item ].contents;

		for ( var i=0, ien=line.length ; i<ien ; i++ ) {
			if ( ! line[i] ) {
				continue;
			}
			else if ( typeof line[i] === 'string' ) {
				line[i] = getFeature( line[i], null );
			}
			else if ( $.isPlainObject(line[i]) ) {
				// If it's an object, it just has feature and opts properties from
				// the transform in _layoutArray
				line[i] = getFeature(line[i].feature, line[i].opts);
			}
			else if ( typeof line[i].node === 'function' ) {
				line[i] = line[i].node( settings );
			}
			else if ( typeof line[i] === 'function' ) {
				var inst = line[i]( settings );

				line[i] = typeof inst.node === 'function' ?
					inst.node() :
					inst;
			}
		}
	};

	resolve('start');
	resolve('end');
	resolve('full');
}


/**
 * Add the options to the page HTML for the table
 *  @param {object} settings DataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnAddOptionsHtml ( settings )
{
	var classes = settings.oClasses;
	var table = $(settings.nTable);

	// Wrapper div around everything DataTables controls
	var insert = $('<div/>')
		.attr({
			id:      settings.sTableId+'_wrapper',
			'class': classes.container
		})
		.insertBefore(table);

	settings.nTableWrapper = insert[0];

	if (settings.sDom) {
		// Legacy
		_fnLayoutDom(settings, settings.sDom, insert);
	}
	else {
		var top = _layoutArray( settings, settings.layout, 'top' );
		var bottom = _layoutArray( settings, settings.layout, 'bottom' );
		var renderer = _fnRenderer( settings, 'layout' );
	
		// Everything above - the renderer will actually insert the contents into the document
		top.forEach(function (item) {
			renderer( settings, insert, item );
		});

		// The table - always the center of attention
		renderer( settings, insert, {
			full: {
				table: true,
				contents: [ _fnFeatureHtmlTable(settings) ]
			}
		} );

		// Everything below
		bottom.forEach(function (item) {
			renderer( settings, insert, item );
		});
	}

	// Processing floats on top, so it isn't an inserted feature
	_processingHtml( settings );
}

/**
 * Draw the table with the legacy DOM property
 * @param {*} settings DT settings object
 * @param {*} dom DOM string
 * @param {*} insert Insert point
 */
function _fnLayoutDom( settings, dom, insert )
{
	var parts = dom.match(/(".*?")|('.*?')|./g);
	var featureNode, option, newNode, next, attr;

	for ( var i=0 ; i<parts.length ; i++ ) {
		featureNode = null;
		option = parts[i];

		if ( option == '<' ) {
			// New container div
			newNode = $('<div/>');

			// Check to see if we should append an id and/or a class name to the container
			next = parts[i+1];

			if ( next[0] == "'" || next[0] == '"' ) {
				attr = next.replace(/['"]/g, '');

				var id = '', className;

				/* The attribute can be in the format of "#id.class", "#id" or "class" This logic
				 * breaks the string into parts and applies them as needed
				 */
				if ( attr.indexOf('.') != -1 ) {
					var split = attr.split('.');

					id = split[0];
					className = split[1];
				}
				else if ( attr[0] == "#" ) {
					id = attr;
				}
				else {
					className = attr;
				}

				newNode
					.attr('id', id.substring(1))
					.addClass(className);

				i++; // Move along the position array
			}

			insert.append( newNode );
			insert = newNode;
		}
		else if ( option == '>' ) {
			// End container div
			insert = insert.parent();
		}
		else if ( option == 't' ) {
			// Table
			featureNode = _fnFeatureHtmlTable( settings );
		}
		else
		{
			DataTable.ext.feature.forEach(function(feature) {
				if ( option == feature.cFeature ) {
					featureNode = feature.fnInit( settings );
				}
			});
		}

		// Add to the display
		if ( featureNode ) {
			insert.append( featureNode );
		}
	}
}


/**
 * Use the DOM source to create up an array of header cells. The idea here is to
 * create a layout grid (array) of rows x columns, which contains a reference
 * to the cell that that point in the grid (regardless of col/rowspan), such that
 * any column / row could be removed and the new grid constructed
 *  @param {node} thead The header/footer element for the table
 *  @returns {array} Calculated layout array
 *  @memberof DataTable#oApi
 */
function _fnDetectHeader ( settings, thead, write )
{
	var columns = settings.aoColumns;
	var rows = $(thead).children('tr');
	var row, cell;
	var i, k, l, iLen, shifted, column, colspan, rowspan;
	var titleRow = settings.titleRow;
	var isHeader = thead && thead.nodeName.toLowerCase() === 'thead';
	var layout = [];
	var unique;
	var shift = function ( a, i, j ) {
		var k = a[i];
		while ( k[j] ) {
			j++;
		}
		return j;
	};

	// We know how many rows there are in the layout - so prep it
	for ( i=0, iLen=rows.length ; i<iLen ; i++ ) {
		layout.push( [] );
	}

	for ( i=0, iLen=rows.length ; i<iLen ; i++ ) {
		row = rows[i];
		column = 0;

		// For every cell in the row..
		cell = row.firstChild;
		while ( cell ) {
			if (
				cell.nodeName.toUpperCase() == 'TD' ||
				cell.nodeName.toUpperCase() == 'TH'
			) {
				var cols = [];
				var jqCell = $(cell);

				// Get the col and rowspan attributes from the DOM and sanitise them
				colspan = cell.getAttribute('colspan') * 1;
				rowspan = cell.getAttribute('rowspan') * 1;
				colspan = (!colspan || colspan===0 || colspan===1) ? 1 : colspan;
				rowspan = (!rowspan || rowspan===0 || rowspan===1) ? 1 : rowspan;

				// There might be colspan cells already in this row, so shift our target
				// accordingly
				shifted = shift( layout, i, column );

				// Cache calculation for unique columns
				unique = colspan === 1 ?
					true :
					false;
				
				// Perform header setup
				if ( write ) {
					if (unique) {
						// Allow column options to be set from HTML attributes
						_fnColumnOptions( settings, shifted, jqCell.data() );
						
						// Get the width for the column. This can be defined from the
						// width attribute, style attribute or `columns.width` option
						var columnDef = columns[shifted];
						var width = cell.getAttribute('width') || null;
						var t = cell.style.width.match(/width:\s*(\d+[pxem%]+)/);
						if ( t ) {
							width = t[1];
						}

						columnDef.sWidthOrig = columnDef.sWidth || width;

						if (isHeader) {
							// Column title handling - can be user set, or read from the DOM
							// This happens before the render, so the original is still in place
							if ( columnDef.sTitle !== null && ! columnDef.autoTitle ) {
								if (
									(titleRow === true && i === 0) || // top row
									(titleRow === false && i === rows.length -1) || // bottom row
									(titleRow === i) || // specific row
									(titleRow === null)
								) {
									cell.innerHTML = columnDef.sTitle;
								}
							}

							if (! columnDef.sTitle && unique) {
								columnDef.sTitle = _stripHtml(cell.innerHTML);
								columnDef.autoTitle = true;
							}
						}
						else {
							// Footer specific operations
							if (columnDef.footer) {
								cell.innerHTML = columnDef.footer;
							}
						}

						// Fall back to the aria-label attribute on the table header if no ariaTitle is
						// provided.
						if (! columnDef.ariaTitle) {
							columnDef.ariaTitle = jqCell.attr("aria-label") || columnDef.sTitle;
						}

						// Column specific class names
						if ( columnDef.className ) {
							jqCell.addClass( columnDef.className );
						}
					}

					// Wrap the column title so we can write to it in future
					if ( $('span.dt-column-title', cell).length === 0) {
						$('<span>')
							.addClass('dt-column-title')
							.append(cell.childNodes)
							.appendTo(cell);
					}

					if (
						settings.orderIndicators &&
						isHeader &&
						jqCell.filter(':not([data-dt-order=disable])').length !== 0 &&
						jqCell.parent(':not([data-dt-order=disable])').length !== 0 &&
						$('span.dt-column-order', cell).length === 0
					) {
						$('<span>')
							.addClass('dt-column-order')
							.appendTo(cell);
					}

					// We need to wrap the elements in the header in another element to use flexbox
					// layout for those elements
					var headerFooter = isHeader ? 'header' : 'footer';

					if ( $('span.dt-column-' + headerFooter, cell).length === 0) {
						$('<div>')
							.addClass('dt-column-' + headerFooter)
							.append(cell.childNodes)
							.appendTo(cell);
					}
				}

				// If there is col / rowspan, copy the information into the layout grid
				for ( l=0 ; l<colspan ; l++ ) {
					for ( k=0 ; k<rowspan ; k++ ) {
						layout[i+k][shifted+l] = {
							cell: cell,
							unique: unique
						};

						layout[i+k].row = row;
					}

					cols.push( shifted+l );
				}

				// Assign an attribute so spanning cells can still be identified
				// as belonging to a column
				cell.setAttribute('data-dt-column', _unique(cols).join(','));
			}

			cell = cell.nextSibling;
		}
	}

	return layout;
}

/**
 * Set the start position for draw
 *  @param {object} oSettings dataTables settings object
 */
function _fnStart( oSettings )
{
	var bServerSide = _fnDataSource( oSettings ) == 'ssp';
	var iInitDisplayStart = oSettings.iInitDisplayStart;

	// Check and see if we have an initial draw position from state saving
	if ( iInitDisplayStart !== undefined && iInitDisplayStart !== -1 )
	{
		oSettings._iDisplayStart = bServerSide ?
			iInitDisplayStart :
			iInitDisplayStart >= oSettings.fnRecordsDisplay() ?
				0 :
				iInitDisplayStart;

		oSettings.iInitDisplayStart = -1;
	}
}

/**
 * Create an Ajax call based on the table's settings, taking into account that
 * parameters can have multiple forms, and backwards compatibility.
 *
 * @param {object} oSettings dataTables settings object
 * @param {array} data Data to send to the server, required by
 *     DataTables - may be augmented by developer callbacks
 * @param {function} fn Callback function to run when data is obtained
 */
function _fnBuildAjax( oSettings, data, fn )
{
	var ajaxData;
	var ajax = oSettings.ajax;
	var instance = oSettings.oInstance;
	var callback = function ( json ) {
		var status = oSettings.jqXHR
			? oSettings.jqXHR.status
			: null;

		if ( json === null || (typeof status === 'number' && status == 204 ) ) {
			json = {};
			_fnAjaxDataSrc( oSettings, json, [] );
		}

		var error = json.error || json.sError;
		if ( error ) {
			_fnLog( oSettings, 0, error );
		}

		// Microsoft often wrap JSON as a string in another JSON object
		// Let's handle that automatically
		if (json.d && typeof json.d === 'string') {
			try {
				json = JSON.parse(json.d);
			}
			catch (e) {
				// noop
			}
		}

		oSettings.json = json;

		_fnCallbackFire( oSettings, null, 'xhr', [oSettings, json, oSettings.jqXHR], true );
		fn( json );
	};

	if ( $.isPlainObject( ajax ) && ajax.data )
	{
		ajaxData = ajax.data;

		var newData = typeof ajaxData === 'function' ?
			ajaxData( data, oSettings ) :  // fn can manipulate data or return
			ajaxData;                      // an object object or array to merge

		// If the function returned something, use that alone
		data = typeof ajaxData === 'function' && newData ?
			newData :
			$.extend( true, data, newData );

		// Remove the data property as we've resolved it already and don't want
		// jQuery to do it again (it is restored at the end of the function)
		delete ajax.data;
	}

	var baseAjax = {
		"url": typeof ajax === 'string' ?
			ajax :
			'',
		"data": data,
		"success": callback,
		"dataType": "json",
		"cache": false,
		"type": oSettings.sServerMethod,
		"error": function (xhr, error) {
			var ret = _fnCallbackFire( oSettings, null, 'xhr', [oSettings, null, oSettings.jqXHR], true );

			if ( ret.indexOf(true) === -1 ) {
				if ( error == "parsererror" ) {
					_fnLog( oSettings, 0, 'Invalid JSON response', 1 );
				}
				else if ( xhr.readyState === 4 ) {
					_fnLog( oSettings, 0, 'Ajax error', 7 );
				}
			}

			_fnProcessingDisplay( oSettings, false );
		}
	};

	// If `ajax` option is an object, extend and override our default base
	if ( $.isPlainObject( ajax ) ) {
		$.extend( baseAjax, ajax )
	}

	// Store the data submitted for the API
	oSettings.oAjaxData = data;

	// Allow plug-ins and external processes to modify the data
	_fnCallbackFire( oSettings, null, 'preXhr', [oSettings, data, baseAjax], true );

	// Custom Ajax option to submit the parameters as a JSON string
	if (baseAjax.submitAs === 'json' && typeof data === 'object') {
		baseAjax.data = JSON.stringify(data);
	}

	if ( typeof ajax === 'function' )
	{
		// Is a function - let the caller define what needs to be done
		oSettings.jqXHR = ajax.call( instance, data, callback, oSettings );
	}
	else if (ajax.url === '') {
		// No url, so don't load any data. Just apply an empty data array
		// to the object for the callback.
		var empty = {};

		DataTable.util.set(ajax.dataSrc)(empty, []);
		callback(empty);
	}
	else {
		// Object to extend the base settings
		oSettings.jqXHR = $.ajax( baseAjax );
	}

	// Restore for next time around
	if ( ajaxData ) {
		ajax.data = ajaxData;
	}
}


/**
 * Update the table using an Ajax call
 *  @param {object} settings dataTables settings object
 *  @returns {boolean} Block the table drawing or not
 *  @memberof DataTable#oApi
 */
function _fnAjaxUpdate( settings )
{
	settings.iDraw++;
	_fnProcessingDisplay( settings, true );

	_fnBuildAjax(
		settings,
		_fnAjaxParameters( settings ),
		function(json) {
			_fnAjaxUpdateDraw( settings, json );
		}
	);
}


/**
 * Build up the parameters in an object needed for a server-side processing
 * request.
 *  @param {object} oSettings dataTables settings object
 *  @returns {bool} block the table drawing or not
 *  @memberof DataTable#oApi
 */
function _fnAjaxParameters( settings )
{
	var
		columns = settings.aoColumns,
		features = settings.oFeatures,
		preSearch = settings.oPreviousSearch,
		preColSearch = settings.aoPreSearchCols,
		colData = function ( idx, prop ) {
			return typeof columns[idx][prop] === 'function' ?
				'function' :
				columns[idx][prop];
		};

	return {
		draw: settings.iDraw,
		columns: columns.map( function ( column, i ) {
			return {
				data: colData(i, 'mData'),
				name: column.sName,
				searchable: column.bSearchable,
				orderable: column.bSortable,
				search: {
					value: preColSearch[i].search,
					regex: preColSearch[i].regex,
					fixed: Object.keys(column.searchFixed).map( function(name) {
						return {
							name: name,
							term: column.searchFixed[name].toString()
						}
					})
				}
			};
		} ),
		order: _fnSortFlatten( settings ).map( function ( val ) {
			return {
				column: val.col,
				dir: val.dir,
				name: colData(val.col, 'sName')
			};
		} ),
		start: settings._iDisplayStart,
		length: features.bPaginate ?
			settings._iDisplayLength :
			-1,
		search: {
			value: preSearch.search,
			regex: preSearch.regex,
			fixed: Object.keys(settings.searchFixed).map( function(name) {
				return {
					name: name,
					term: settings.searchFixed[name].toString()
				}
			})
		}
	};
}


/**
 * Data the data from the server (nuking the old) and redraw the table
 *  @param {object} oSettings dataTables settings object
 *  @param {object} json json data return from the server.
 *  @param {string} json.sEcho Tracking flag for DataTables to match requests
 *  @param {int} json.iTotalRecords Number of records in the data set, not accounting for filtering
 *  @param {int} json.iTotalDisplayRecords Number of records in the data set, accounting for filtering
 *  @param {array} json.aaData The data to display on this page
 *  @param {string} [json.sColumns] Column ordering (sName, comma separated)
 *  @memberof DataTable#oApi
 */
function _fnAjaxUpdateDraw ( settings, json )
{
	var data = _fnAjaxDataSrc(settings, json);
	var draw = _fnAjaxDataSrcParam(settings, 'draw', json);
	var recordsTotal = _fnAjaxDataSrcParam(settings, 'recordsTotal', json);
	var recordsFiltered = _fnAjaxDataSrcParam(settings, 'recordsFiltered', json);

	if ( draw !== undefined ) {
		// Protect against out of sequence returns
		if ( draw*1 < settings.iDraw ) {
			return;
		}
		settings.iDraw = draw * 1;
	}

	// No data in returned object, so rather than an array, we show an empty table
	if ( ! data ) {
		data = [];
	}

	_fnClearTable( settings );
	settings._iRecordsTotal   = parseInt(recordsTotal, 10);
	settings._iRecordsDisplay = parseInt(recordsFiltered, 10);

	for ( var i=0, ien=data.length ; i<ien ; i++ ) {
		_fnAddData( settings, data[i] );
	}
	settings.aiDisplay = settings.aiDisplayMaster.slice();

	_fnColumnTypes(settings);
	_fnDraw( settings, true );
	_fnInitComplete( settings );
	_fnProcessingDisplay( settings, false );
}


/**
 * Get the data from the JSON data source to use for drawing a table. Using
 * `_fnGetObjectDataFn` allows the data to be sourced from a property of the
 * source object, or from a processing function.
 *  @param {object} settings dataTables settings object
 *  @param  {object} json Data source object / array from the server
 *  @return {array} Array of data to use
 */
function _fnAjaxDataSrc ( settings, json, write )
{
	var dataProp = 'data';

	if ($.isPlainObject( settings.ajax ) && settings.ajax.dataSrc !== undefined) {
		// Could in inside a `dataSrc` object, or not!
		var dataSrc = settings.ajax.dataSrc;

		// string, function and object are valid types
		if (typeof dataSrc === 'string' || typeof dataSrc === 'function') {
			dataProp = dataSrc;
		}
		else if (dataSrc.data !== undefined) {
			dataProp = dataSrc.data;
		}
	}

	if ( ! write ) {
		if ( dataProp === 'data' ) {
			// If the default, then we still want to support the old style, and safely ignore
			// it if possible
			return json.aaData || json[dataProp];
		}

		return dataProp !== "" ?
			_fnGetObjectDataFn( dataProp )( json ) :
			json;
	}
	
	// set
	_fnSetObjectDataFn( dataProp )( json, write );
}

/**
 * Very similar to _fnAjaxDataSrc, but for the other SSP properties
 * @param {*} settings DataTables settings object
 * @param {*} param Target parameter
 * @param {*} json JSON data
 * @returns Resolved value
 */
function _fnAjaxDataSrcParam (settings, param, json) {
	var dataSrc = $.isPlainObject( settings.ajax )
		? settings.ajax.dataSrc
		: null;

	if (dataSrc && dataSrc[param]) {
		// Get from custom location
		return _fnGetObjectDataFn( dataSrc[param] )( json );
	}

	// else - Default behaviour
	var old = '';

	// Legacy support
	if (param === 'draw') {
		old = 'sEcho';
	}
	else if (param === 'recordsTotal') {
		old = 'iTotalRecords';
	}
	else if (param === 'recordsFiltered') {
		old = 'iTotalDisplayRecords';
	}

	return json[old] !== undefined
		? json[old]
		: json[param];
}


/**
 * Filter the table using both the global filter and column based filtering
 *  @param {object} settings dataTables settings object
 *  @param {object} input search information
 *  @memberof DataTable#oApi
 */
function _fnFilterComplete ( settings, input )
{
	var columnsSearch = settings.aoPreSearchCols;

	// In server-side processing all filtering is done by the server, so no point hanging around here
	if ( _fnDataSource( settings ) != 'ssp' )
	{
		// Check if any of the rows were invalidated
		_fnFilterData( settings );

		// Start from the full data set
		settings.aiDisplay = settings.aiDisplayMaster.slice();

		// Global filter first
		_fnFilter( settings.aiDisplay, settings, input.search, input );

		$.each(settings.searchFixed, function (name, term) {
			_fnFilter(settings.aiDisplay, settings, term, {});
		});

		// Then individual column filters
		for ( var i=0 ; i<columnsSearch.length ; i++ )
		{
			var col = columnsSearch[i];

			_fnFilter(
				settings.aiDisplay,
				settings,
				col.search,
				col,
				i
			);

			$.each(settings.aoColumns[i].searchFixed, function (name, term) {
				_fnFilter(settings.aiDisplay, settings, term, {}, i);
			});
		}

		// And finally global filtering
		_fnFilterCustom( settings );
	}

	// Tell the draw function we have been filtering
	settings.bFiltered = true;

	_fnCallbackFire( settings, null, 'search', [settings] );
}


/**
 * Apply custom filtering functions
 * 
 * This is legacy now that we have named functions, but it is widely used
 * from 1.x, so it is not yet deprecated.
 *  @param {object} oSettings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnFilterCustom( settings )
{
	var filters = DataTable.ext.search;
	var displayRows = settings.aiDisplay;
	var row, rowIdx;

	for ( var i=0, ien=filters.length ; i<ien ; i++ ) {
		var rows = [];

		// Loop over each row and see if it should be included
		for ( var j=0, jen=displayRows.length ; j<jen ; j++ ) {
			rowIdx = displayRows[ j ];
			row = settings.aoData[ rowIdx ];

			if ( filters[i]( settings, row._aFilterData, rowIdx, row._aData, j ) ) {
				rows.push( rowIdx );
			}
		}

		// So the array reference doesn't break set the results into the
		// existing array
		displayRows.length = 0;
		_fnArrayApply(displayRows, rows);
	}
}


/**
 * Filter the data table based on user input and draw the table
 */
function _fnFilter( searchRows, settings, input, options, column )
{
	if ( input === '' ) {
		return;
	}

	var i = 0;
	var matched = [];

	// Search term can be a function, regex or string - if a string we apply our
	// smart filtering regex (assuming the options require that)
	var searchFunc = typeof input === 'function' ? input : null;
	var rpSearch = input instanceof RegExp
		? input
		: searchFunc
			? null
			: _fnFilterCreateSearch( input, options );

	// Then for each row, does the test pass. If not, lop the row from the array
	for (i=0 ; i<searchRows.length ; i++) {
		var row = settings.aoData[ searchRows[i] ];
		var data = column === undefined
			? row._sFilterRow
			: row._aFilterData[ column ];

		if ( (searchFunc && searchFunc(data, row._aData, searchRows[i], column)) || (rpSearch && rpSearch.test(data)) ) {
			matched.push(searchRows[i]);
		}
	}

	// Mutate the searchRows array
	searchRows.length = matched.length;

	for (i=0 ; i<matched.length ; i++) {
		searchRows[i] = matched[i];
	}
}


/**
 * Build a regular expression object suitable for searching a table
 *  @param {string} sSearch string to search for
 *  @param {bool} bRegex treat as a regular expression or not
 *  @param {bool} bSmart perform smart filtering or not
 *  @param {bool} bCaseInsensitive Do case insensitive matching or not
 *  @returns {RegExp} constructed object
 *  @memberof DataTable#oApi
 */
function _fnFilterCreateSearch( search, inOpts )
{
	var not = [];
	var options = $.extend({}, {
		boundary: false,
		caseInsensitive: true,
		exact: false,
		regex: false,
		smart: true
	}, inOpts);

	if (typeof search !== 'string') {
		search = search.toString();
	}

	// Remove diacritics if normalize is set up to do so
	search = _normalize(search);

	if (options.exact) {
		return new RegExp(
			'^'+_fnEscapeRegex(search)+'$',
			options.caseInsensitive ? 'i' : ''
		);
	}

	search = options.regex ?
		search :
		_fnEscapeRegex( search );
	
	if ( options.smart ) {
		/* For smart filtering we want to allow the search to work regardless of
		 * word order. We also want double quoted text to be preserved, so word
		 * order is important - a la google. And a negative look around for
		 * finding rows which don't contain a given string.
		 * 
		 * So this is the sort of thing we want to generate:
		 * 
		 * ^(?=.*?\bone\b)(?=.*?\btwo three\b)(?=.*?\bfour\b).*$
		 */
		var parts = search.match( /!?["\u201C][^"\u201D]+["\u201D]|[^ ]+/g ) || [''];
		var a = parts.map( function ( word ) {
			var negative = false;
			var m;

			// Determine if it is a "does not include"
			if ( word.charAt(0) === '!' ) {
				negative = true;
				word = word.substring(1);
			}

			// Strip the quotes from around matched phrases
			if ( word.charAt(0) === '"' ) {
				m = word.match( /^"(.*)"$/ );
				word = m ? m[1] : word;
			}
			else if ( word.charAt(0) === '\u201C' ) {
				// Smart quote match (iPhone users)
				m = word.match( /^\u201C(.*)\u201D$/ );
				word = m ? m[1] : word;
			}

			// For our "not" case, we need to modify the string that is
			// allowed to match at the end of the expression.
			if (negative) {
				if (word.length > 1) {
					not.push('(?!'+word+')');
				}

				word = '';
			}

			return word.replace(/"/g, '');
		} );

		var match = not.length
			? not.join('')
			: '';

		var boundary = options.boundary
			? '\\b'
			: '';

		search = '^(?=.*?'+boundary+a.join( ')(?=.*?'+boundary )+')('+match+'.)*$';
	}

	return new RegExp( search, options.caseInsensitive ? 'i' : '' );
}


/**
 * Escape a string such that it can be used in a regular expression
 *  @param {string} sVal string to escape
 *  @returns {string} escaped string
 *  @memberof DataTable#oApi
 */
var _fnEscapeRegex = DataTable.util.escapeRegex;

var __filter_div = $('<div>')[0];
var __filter_div_textContent = __filter_div.textContent !== undefined;

// Update the filtering data for each row if needed (by invalidation or first run)
function _fnFilterData ( settings )
{
	var columns = settings.aoColumns;
	var data = settings.aoData;
	var column;
	var j, jen, filterData, cellData, row;
	var wasInvalidated = false;

	for ( var rowIdx=0 ; rowIdx<data.length ; rowIdx++ ) {
		if (! data[rowIdx]) {
			continue;
		}

		row = data[rowIdx];

		if ( ! row._aFilterData ) {
			filterData = [];

			for ( j=0, jen=columns.length ; j<jen ; j++ ) {
				column = columns[j];

				if ( column.bSearchable ) {
					cellData = _fnGetCellData( settings, rowIdx, j, 'filter' );

					// Search in DataTables is string based
					if ( cellData === null ) {
						cellData = '';
					}

					if ( typeof cellData !== 'string' && cellData.toString ) {
						cellData = cellData.toString();
					}
				}
				else {
					cellData = '';
				}

				// If it looks like there is an HTML entity in the string,
				// attempt to decode it so sorting works as expected. Note that
				// we could use a single line of jQuery to do this, but the DOM
				// method used here is much faster https://jsperf.com/html-decode
				if ( cellData.indexOf && cellData.indexOf('&') !== -1 ) {
					__filter_div.innerHTML = cellData;
					cellData = __filter_div_textContent ?
						__filter_div.textContent :
						__filter_div.innerText;
				}

				if ( cellData.replace ) {
					cellData = cellData.replace(/[\r\n\u2028]/g, '');
				}

				filterData.push( cellData );
			}

			row._aFilterData = filterData;
			row._sFilterRow = filterData.join('  ');
			wasInvalidated = true;
		}
	}

	return wasInvalidated;
}


/**
 * Draw the table for the first time, adding all required features
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnInitialise ( settings )
{
	var i;
	var init = settings.oInit;
	var deferLoading = settings.deferLoading;
	var dataSrc = _fnDataSource( settings );

	// Ensure that the table data is fully initialised
	if ( ! settings.bInitialised ) {
		setTimeout( function(){ _fnInitialise( settings ); }, 200 );
		return;
	}

	// Build the header / footer for the table
	_fnBuildHead( settings, 'header' );
	_fnBuildHead( settings, 'footer' );

	// Load the table's state (if needed) and then render around it and draw
	_fnLoadState( settings, init, function () {
		// Then draw the header / footer
		_fnDrawHead( settings, settings.aoHeader );
		_fnDrawHead( settings, settings.aoFooter );

		// Cache the paging start point, as the first redraw will reset it
		var iAjaxStart = settings.iInitDisplayStart

		// Local data load
		// Check if there is data passing into the constructor
		if ( init.aaData ) {
			for ( i=0 ; i<init.aaData.length ; i++ ) {
				_fnAddData( settings, init.aaData[ i ] );
			}
		}
		else if ( deferLoading || dataSrc == 'dom' ) {
			// Grab the data from the page
			_fnAddTr( settings, $(settings.nTBody).children('tr') );
		}

		// Filter not yet applied - copy the display master
		settings.aiDisplay = settings.aiDisplayMaster.slice();

		// Enable features
		_fnAddOptionsHtml( settings );
		_fnSortInit( settings );

		_colGroup( settings );

		/* Okay to show that something is going on now */
		_fnProcessingDisplay( settings, true );

		_fnCallbackFire( settings, null, 'preInit', [settings], true );

		// If there is default sorting required - let's do it. The sort function
		// will do the drawing for us. Otherwise we draw the table regardless of the
		// Ajax source - this allows the table to look initialised for Ajax sourcing
		// data (show 'loading' message possibly)
		_fnReDraw( settings );

		// Server-side processing init complete is done by _fnAjaxUpdateDraw
		if ( dataSrc != 'ssp' || deferLoading ) {
			// if there is an ajax source load the data
			if ( dataSrc == 'ajax' ) {
				_fnBuildAjax( settings, {}, function(json) {
					var aData = _fnAjaxDataSrc( settings, json );

					// Got the data - add it to the table
					for ( i=0 ; i<aData.length ; i++ ) {
						_fnAddData( settings, aData[i] );
					}

					// Reset the init display for cookie saving. We've already done
					// a filter, and therefore cleared it before. So we need to make
					// it appear 'fresh'
					settings.iInitDisplayStart = iAjaxStart;

					_fnReDraw( settings );
					_fnProcessingDisplay( settings, false );
					_fnInitComplete( settings );
				}, settings );
			}
			else {
				_fnInitComplete( settings );
				_fnProcessingDisplay( settings, false );
			}
		}
	} );
}


/**
 * Draw the table for the first time, adding all required features
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnInitComplete ( settings )
{
	if (settings._bInitComplete) {
		return;
	}

	var args = [settings, settings.json];

	settings._bInitComplete = true;

	// Table is fully set up and we have data, so calculate the
	// column widths
	_fnAdjustColumnSizing( settings );

	_fnCallbackFire( settings, null, 'plugin-init', args, true );
	_fnCallbackFire( settings, 'aoInitComplete', 'init', args, true );
}

function _fnLengthChange ( settings, val )
{
	var len = parseInt( val, 10 );
	settings._iDisplayLength = len;

	_fnLengthOverflow( settings );

	// Fire length change event
	_fnCallbackFire( settings, null, 'length', [settings, len] );
}

/**
 * Alter the display settings to change the page
 *  @param {object} settings DataTables settings object
 *  @param {string|int} action Paging action to take: "first", "previous",
 *    "next" or "last" or page number to jump to (integer)
 *  @param [bool] redraw Automatically draw the update or not
 *  @returns {bool} true page has changed, false - no change
 *  @memberof DataTable#oApi
 */
function _fnPageChange ( settings, action, redraw )
{
	var
		start     = settings._iDisplayStart,
		len       = settings._iDisplayLength,
		records   = settings.fnRecordsDisplay();

	if ( records === 0 || len === -1 )
	{
		start = 0;
	}
	else if ( typeof action === "number" )
	{
		start = action * len;

		if ( start > records )
		{
			start = 0;
		}
	}
	else if ( action == "first" )
	{
		start = 0;
	}
	else if ( action == "previous" )
	{
		start = len >= 0 ?
			start - len :
			0;

		if ( start < 0 )
		{
			start = 0;
		}
	}
	else if ( action == "next" )
	{
		if ( start + len < records )
		{
			start += len;
		}
	}
	else if ( action == "last" )
	{
		start = Math.floor( (records-1) / len) * len;
	}
	else if ( action === 'ellipsis' )
	{
		return;
	}
	else
	{
		_fnLog( settings, 0, "Unknown paging action: "+action, 5 );
	}

	var changed = settings._iDisplayStart !== start;
	settings._iDisplayStart = start;

	_fnCallbackFire( settings, null, changed ? 'page' : 'page-nc', [settings] );

	if ( changed && redraw ) {
		_fnDraw( settings );
	}

	return changed;
}


/**
 * Generate the node required for the processing node
 *  @param {object} settings DataTables settings object
 */
function _processingHtml ( settings )
{
	var table = settings.nTable;
	var scrolling = settings.oScroll.sX !== '' || settings.oScroll.sY !== '';

	if ( settings.oFeatures.bProcessing ) {
		var n = $('<div/>', {
				'id': settings.sTableId + '_processing',
				'class': settings.oClasses.processing.container,
				'role': 'status'
			} )
			.html( settings.oLanguage.sProcessing )
			.append('<div><div></div><div></div><div></div><div></div></div>');

		// Different positioning depending on if scrolling is enabled or not
		if (scrolling) {
			n.prependTo( $('div.dt-scroll', settings.nTableWrapper) );
		}
		else {
			n.insertBefore( table );
		}

		$(table).on( 'processing.dt.DT', function (e, s, show) {
			n.css( 'display', show ? 'block' : 'none' );
		} );
	}
}


/**
 * Display or hide the processing indicator
 *  @param {object} settings DataTables settings object
 *  @param {bool} show Show the processing indicator (true) or not (false)
 */
function _fnProcessingDisplay ( settings, show )
{
	// Ignore cases when we are still redrawing
	if (settings.bDrawing && show === false) {
		return;
	}

	_fnCallbackFire( settings, null, 'processing', [settings, show] );
}

/**
 * Show the processing element if an action takes longer than a given time
 *
 * @param {*} settings DataTables settings object
 * @param {*} enable Do (true) or not (false) async processing (local feature enablement)
 * @param {*} run Function to run
 */
function _fnProcessingRun( settings, enable, run ) {
	if (! enable) {
		// Immediate execution, synchronous
		run();
	}
	else {
		_fnProcessingDisplay(settings, true);
		
		// Allow the processing display to show if needed
		setTimeout(function () {
			run();

			_fnProcessingDisplay(settings, false);
		}, 0);
	}
}
/**
 * Add any control elements for the table - specifically scrolling
 *  @param {object} settings dataTables settings object
 *  @returns {node} Node to add to the DOM
 *  @memberof DataTable#oApi
 */
function _fnFeatureHtmlTable ( settings )
{
	var table = $(settings.nTable);

	// Scrolling from here on in
	var scroll = settings.oScroll;

	if ( scroll.sX === '' && scroll.sY === '' ) {
		return settings.nTable;
	}

	var scrollX = scroll.sX;
	var scrollY = scroll.sY;
	var classes = settings.oClasses.scrolling;
	var caption = settings.captionNode;
	var captionSide = caption ? caption._captionSide : null;
	var headerClone = $( table[0].cloneNode(false) );
	var footerClone = $( table[0].cloneNode(false) );
	var footer = table.children('tfoot');
	var _div = '<div/>';
	var size = function ( s ) {
		return !s ? null : _fnStringToCss( s );
	};

	if ( ! footer.length ) {
		footer = null;
	}

	/*
	 * The HTML structure that we want to generate in this function is:
	 *  div - scroller
	 *    div - scroll head
	 *      div - scroll head inner
	 *        table - scroll head table
	 *          thead - thead
	 *    div - scroll body
	 *      table - table (master table)
	 *        thead - thead clone for sizing
	 *        tbody - tbody
	 *    div - scroll foot
	 *      div - scroll foot inner
	 *        table - scroll foot table
	 *          tfoot - tfoot
	 */
	var scroller = $( _div, { 'class': classes.container } )
		.append(
			$(_div, { 'class': classes.header.self } )
				.css( {
					overflow: 'hidden',
					position: 'relative',
					border: 0,
					width: scrollX ? size(scrollX) : '100%'
				} )
				.append(
					$(_div, { 'class': classes.header.inner } )
						.css( {
							'box-sizing': 'content-box',
							width: scroll.sXInner || '100%'
						} )
						.append(
							headerClone
								.removeAttr('id')
								.css( 'margin-left', 0 )
								.append( captionSide === 'top' ? caption : null )
								.append(
									table.children('thead')
								)
						)
				)
		)
		.append(
			$(_div, { 'class': classes.body } )
				.css( {
					position: 'relative',
					overflow: 'auto',
					width: size( scrollX )
				} )
				.append( table )
		);

	if ( footer ) {
		scroller.append(
			$(_div, { 'class': classes.footer.self } )
				.css( {
					overflow: 'hidden',
					border: 0,
					width: scrollX ? size(scrollX) : '100%'
				} )
				.append(
					$(_div, { 'class': classes.footer.inner } )
						.append(
							footerClone
								.removeAttr('id')
								.css( 'margin-left', 0 )
								.append( captionSide === 'bottom' ? caption : null )
								.append(
									table.children('tfoot')
								)
						)
				)
		);
	}

	var children = scroller.children();
	var scrollHead = children[0];
	var scrollBody = children[1];
	var scrollFoot = footer ? children[2] : null;

	// When the body is scrolled, then we also want to scroll the headers
	$(scrollBody).on( 'scroll.DT', function () {
		var scrollLeft = this.scrollLeft;

		scrollHead.scrollLeft = scrollLeft;

		if ( footer ) {
			scrollFoot.scrollLeft = scrollLeft;
		}
	} );

	// When focus is put on the header cells, we might need to scroll the body
	$('th, td', scrollHead).on('focus', function () {
		var scrollLeft = scrollHead.scrollLeft;

		scrollBody.scrollLeft = scrollLeft;

		if ( footer ) {
			scrollBody.scrollLeft = scrollLeft;
		}
	});

	$(scrollBody).css('max-height', scrollY);
	if (! scroll.bCollapse) {
		$(scrollBody).css('height', scrollY);
	}

	settings.nScrollHead = scrollHead;
	settings.nScrollBody = scrollBody;
	settings.nScrollFoot = scrollFoot;

	// On redraw - align columns
	settings.aoDrawCallback.push(_fnScrollDraw);

	return scroller[0];
}



/**
 * Update the header, footer and body tables for resizing - i.e. column
 * alignment.
 *
 * Welcome to the most horrible function DataTables. The process that this
 * function follows is basically:
 *   1. Re-create the table inside the scrolling div
 *   2. Correct colgroup > col values if needed
 *   3. Copy colgroup > col over to header and footer
 *   4. Clean up
 *
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnScrollDraw ( settings )
{
	// Given that this is such a monster function, a lot of variables are use
	// to try and keep the minimised size as small as possible
	var
		scroll         = settings.oScroll,
		barWidth       = scroll.iBarWidth,
		divHeader      = $(settings.nScrollHead),
		divHeaderInner = divHeader.children('div'),
		divHeaderTable = divHeaderInner.children('table'),
		divBodyEl      = settings.nScrollBody,
		divBody        = $(divBodyEl),
		divFooter      = $(settings.nScrollFoot),
		divFooterInner = divFooter.children('div'),
		divFooterTable = divFooterInner.children('table'),
		header         = $(settings.nTHead),
		table          = $(settings.nTable),
		footer         = settings.nTFoot && $('th, td', settings.nTFoot).length ? $(settings.nTFoot) : null,
		browser        = settings.oBrowser,
		headerCopy, footerCopy;

	// If the scrollbar visibility has changed from the last draw, we need to
	// adjust the column sizes as the table width will have changed to account
	// for the scrollbar
	var scrollBarVis = divBodyEl.scrollHeight > divBodyEl.clientHeight;
	
	if ( settings.scrollBarVis !== scrollBarVis && settings.scrollBarVis !== undefined ) {
		settings.scrollBarVis = scrollBarVis;
		_fnAdjustColumnSizing( settings );
		return; // adjust column sizing will call this function again
	}
	else {
		settings.scrollBarVis = scrollBarVis;
	}

	// 1. Re-create the table inside the scrolling div
	// Remove the old minimised thead and tfoot elements in the inner table
	table.children('thead, tfoot').remove();

	// Clone the current header and footer elements and then place it into the inner table
	headerCopy = header.clone().prependTo( table );
	headerCopy.find('th, td').removeAttr('tabindex');
	headerCopy.find('[id]').removeAttr('id');

	if ( footer ) {
		footerCopy = footer.clone().prependTo( table );
		footerCopy.find('[id]').removeAttr('id');
	}

	// 2. Correct colgroup > col values if needed
	// It is possible that the cell sizes are smaller than the content, so we need to
	// correct colgroup>col for such cases. This can happen if the auto width detection
	// uses a cell which has a longer string, but isn't the widest! For example 
	// "Chief Executive Officer (CEO)" is the longest string in the demo, but
	// "Systems Administrator" is actually the widest string since it doesn't collapse.
	// Note the use of translating into a column index to get the `col` element. This
	// is because of Responsive which might remove `col` elements, knocking the alignment
	// of the indexes out.
	if (settings.aiDisplay.length) {
		// Get the column sizes from the first row in the table. This should really be a
		// [].find, but it wasn't supported in Chrome until Sept 2015, and DT has 10 year
		// browser support
		var firstTr = null;
		var start = _fnDataSource( settings ) !== 'ssp'
			? settings._iDisplayStart
			: 0;

		for (i=start ; i<start + settings.aiDisplay.length ; i++) {
			var idx = settings.aiDisplay[i];
			var tr = settings.aoData[idx].nTr;

			if (tr) {
				firstTr = tr;
				break;
			}
		}

		if (firstTr) {
			var colSizes = $(firstTr).children('th, td').map(function (vis) {
				return {
					idx: _fnVisibleToColumnIndex(settings, vis),
					width: $(this).outerWidth()
				};
			});

			// Check against what the colgroup > col is set to and correct if needed
			for (var i=0 ; i<colSizes.length ; i++) {
				var colEl = settings.aoColumns[ colSizes[i].idx ].colEl[0];
				var colWidth = colEl.style.width.replace('px', '');

				if (colWidth !== colSizes[i].width) {
					colEl.style.width = colSizes[i].width + 'px';

					if (scroll.sX) {
						colEl.style.minWidth = colSizes[i].width + 'px';
					}
				}
			}
		}
	}

	// 3. Copy the colgroup over to the header and footer
	divHeaderTable
		.find('colgroup')
		.remove();

	divHeaderTable.append(settings.colgroup.clone());

	if ( footer ) {
		divFooterTable
			.find('colgroup')
			.remove();

		divFooterTable.append(settings.colgroup.clone());
	}

	// "Hide" the header and footer that we used for the sizing. We need to keep
	// the content of the cell so that the width applied to the header and body
	// both match, but we want to hide it completely.
	$('th, td', headerCopy).each(function () {
		$(this.childNodes).wrapAll('<div class="dt-scroll-sizing">');
	});

	if ( footer ) {
		$('th, td', footerCopy).each(function () {
			$(this.childNodes).wrapAll('<div class="dt-scroll-sizing">');
		});
	}

	// 4. Clean up
	// Figure out if there are scrollbar present - if so then we need a the header and footer to
	// provide a bit more space to allow "overflow" scrolling (i.e. past the scrollbar)
	var isScrolling = Math.floor(table.height()) > divBodyEl.clientHeight || divBody.css('overflow-y') == "scroll";
	var paddingSide = 'padding' + (browser.bScrollbarLeft ? 'Left' : 'Right' );

	// Set the width's of the header and footer tables
	var outerWidth = table.outerWidth();

	divHeaderTable.css('width', _fnStringToCss( outerWidth ));
	divHeaderInner
		.css('width', _fnStringToCss( outerWidth ))
		.css(paddingSide, isScrolling ? barWidth+"px" : "0px");

	if ( footer ) {
		divFooterTable.css('width', _fnStringToCss( outerWidth ));
		divFooterInner
			.css('width', _fnStringToCss( outerWidth ))
			.css(paddingSide, isScrolling ? barWidth+"px" : "0px");
	}

	// Correct DOM ordering for colgroup - comes before the thead
	table.children('colgroup').prependTo(table);

	// Adjust the position of the header in case we loose the y-scrollbar
	divBody.trigger('scroll');

	// If sorting or filtering has occurred, jump the scrolling back to the top
	// only if we aren't holding the position
	if ( (settings.bSorted || settings.bFiltered) && ! settings._drawHold ) {
		divBodyEl.scrollTop = 0;
	}
}

/**
 * Calculate the width of columns for the table
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnCalculateColumnWidths ( settings )
{
	// Not interested in doing column width calculation if auto-width is disabled
	if (! settings.oFeatures.bAutoWidth) {
		return;
	}

	var
		table = settings.nTable,
		columns = settings.aoColumns,
		scroll = settings.oScroll,
		scrollY = scroll.sY,
		scrollX = scroll.sX,
		scrollXInner = scroll.sXInner,
		visibleColumns = _fnGetColumns( settings, 'bVisible' ),
		tableWidthAttr = table.getAttribute('width'), // from DOM element
		tableContainer = table.parentNode,
		i, column, columnIdx;
		
	var styleWidth = table.style.width;
	var containerWidth = _fnWrapperWidth(settings);

	// Don't re-run for the same width as the last time
	if (containerWidth === settings.containerWidth) {
		return false;
	}

	settings.containerWidth = containerWidth;

	// If there is no width applied as a CSS style or as an attribute, we assume that
	// the width is intended to be 100%, which is usually is in CSS, but it is very
	// difficult to correctly parse the rules to get the final result.
	if ( ! styleWidth && ! tableWidthAttr) {
		table.style.width = '100%';
		styleWidth = '100%';
	}

	if ( styleWidth && styleWidth.indexOf('%') !== -1 ) {
		tableWidthAttr = styleWidth;
	}

	// Let plug-ins know that we are doing a recalc, in case they have changed any of the
	// visible columns their own way (e.g. Responsive uses display:none).
	_fnCallbackFire(
		settings,
		null,
		'column-calc',
		{visible: visibleColumns},
		false
	);

	// Construct a single row, worst case, table with the widest
	// node in the data, assign any user defined widths, then insert it into
	// the DOM and allow the browser to do all the hard work of calculating
	// table widths
	var tmpTable = $(table.cloneNode())
		.css( 'visibility', 'hidden' )
		.removeAttr( 'id' );

	// Clean up the table body
	tmpTable.append('<tbody>')
	var tr = $('<tr/>').appendTo( tmpTable.find('tbody') );

	// Clone the table header and footer - we can't use the header / footer
	// from the cloned table, since if scrolling is active, the table's
	// real header and footer are contained in different table tags
	tmpTable
		.append( $(settings.nTHead).clone() )
		.append( $(settings.nTFoot).clone() );

	// Remove any assigned widths from the footer (from scrolling)
	tmpTable.find('tfoot th, tfoot td').css('width', '');

	// Apply custom sizing to the cloned header
	tmpTable.find('thead th, thead td').each( function () {
		// Get the `width` from the header layout
		var width = _fnColumnsSumWidth( settings, this, true, false );

		if ( width ) {
			this.style.width = width;

			// For scrollX we need to force the column width otherwise the
			// browser will collapse it. If this width is smaller than the
			// width the column requires, then it will have no effect
			if ( scrollX ) {
				this.style.minWidth = width;

				$( this ).append( $('<div/>').css( {
					width: width,
					margin: 0,
					padding: 0,
					border: 0,
					height: 1
				} ) );
			}
		}
		else {
			this.style.width = '';
		}
	} );

	// Find the widest piece of data for each column and put it into the table
	for ( i=0 ; i<visibleColumns.length ; i++ ) {
		columnIdx = visibleColumns[i];
		column = columns[ columnIdx ];

		var longest = _fnGetMaxLenString(settings, columnIdx);
		var autoClass = _ext.type.className[column.sType];
		var text = longest + column.sContentPadding;
		var insert = longest.indexOf('<') === -1
			? document.createTextNode(text)
			: text
		
		$('<td/>')
			.addClass(autoClass)
			.addClass(column.sClass)
			.append(insert)
			.appendTo(tr);
	}

	// Tidy the temporary table - remove name attributes so there aren't
	// duplicated in the dom (radio elements for example)
	$('[name]', tmpTable).removeAttr('name');

	// Table has been built, attach to the document so we can work with it.
	// A holding element is used, positioned at the top of the container
	// with minimal height, so it has no effect on if the container scrolls
	// or not. Otherwise it might trigger scrolling when it actually isn't
	// needed
	var holder = $('<div/>').css( scrollX || scrollY ?
			{
				position: 'absolute',
				top: 0,
				left: 0,
				height: 1,
				right: 0,
				overflow: 'hidden'
			} :
			{}
		)
		.append( tmpTable )
		.appendTo( tableContainer );

	// When scrolling (X or Y) we want to set the width of the table as 
	// appropriate. However, when not scrolling leave the table width as it
	// is. This results in slightly different, but I think correct behaviour
	if ( scrollX && scrollXInner ) {
		tmpTable.width( scrollXInner );
	}
	else if ( scrollX ) {
		tmpTable.css( 'width', 'auto' );
		tmpTable.removeAttr('width');

		// If there is no width attribute or style, then allow the table to
		// collapse
		if ( tmpTable.outerWidth() < tableContainer.clientWidth && tableWidthAttr ) {
			tmpTable.outerWidth( tableContainer.clientWidth );
		}
	}
	else if ( scrollY ) {
		tmpTable.outerWidth( tableContainer.clientWidth );
	}
	else if ( tableWidthAttr ) {
		tmpTable.outerWidth( tableWidthAttr );
	}

	// Get the width of each column in the constructed table
	var total = 0;
	var bodyCells = tmpTable.find('tbody tr').eq(0).children();

	for ( i=0 ; i<visibleColumns.length ; i++ ) {
		// Use getBounding for sub-pixel accuracy, which we then want to round up!
		var bounding = bodyCells[i].getBoundingClientRect().width;

		// Total is tracked to remove any sub-pixel errors as the outerWidth
		// of the table might not equal the total given here
		total += bounding;

		// Width for each column to use
		columns[ visibleColumns[i] ].sWidth = _fnStringToCss( bounding );
	}

	table.style.width = _fnStringToCss( total );

	// Finished with the table - ditch it
	holder.remove();

	// If there is a width attr, we want to attach an event listener which
	// allows the table sizing to automatically adjust when the window is
	// resized. Use the width attr rather than CSS, since we can't know if the
	// CSS is a relative value or absolute - DOM read is always px.
	if ( tableWidthAttr ) {
		table.style.width = _fnStringToCss( tableWidthAttr );
	}

	if ( (tableWidthAttr || scrollX) && ! settings._reszEvt ) {
		var resize = DataTable.util.throttle( function () {
			var newWidth = _fnWrapperWidth(settings);

			// Don't do it if destroying or the container width is 0
			if (! settings.bDestroying && newWidth !== 0) {
				_fnAdjustColumnSizing( settings );
			}
		} );

		// For browsers that support it (~2020 onwards for wide support) we can watch for the
		// container changing width.
		if (window.ResizeObserver) {
			// This is a tricky beast - if the element is visible when `.observe()` is called,
			// then the callback is immediately run. Which we don't want. If the element isn't
			// visible, then it isn't run, but we want it to run when it is then made visible.
			// This flag allows the above to be satisfied.
			var first = $(settings.nTableWrapper).is(':visible');

			// Use an empty div to attach the observer so it isn't impacted by height changes
			var resizer = $('<div>')
				.css({
					width: '100%',
					height: 0
				})
				.addClass('dt-autosize')
				.appendTo(settings.nTableWrapper);

			settings.resizeObserver = new ResizeObserver(function (e) {
				if (first) {
					first = false;
				}
				else {
					resize();
				}
			});

			settings.resizeObserver.observe(resizer[0]);
		}
		else {
			// For old browsers, the best we can do is listen for a window resize
			$(window).on('resize.DT-'+settings.sInstance, resize);
		}

		settings._reszEvt = true;
	}
}

/**
 * Get the width of the DataTables wrapper element
 *
 * @param {*} settings DataTables settings object
 * @returns Width
 */
function _fnWrapperWidth(settings) {
	return $(settings.nTableWrapper).is(':visible')
		? $(settings.nTableWrapper).width()
		: 0;
}

/**
 * Get the maximum strlen for each data column
 *  @param {object} settings dataTables settings object
 *  @param {int} colIdx column of interest
 *  @returns {string} string of the max length
 *  @memberof DataTable#oApi
 */
function _fnGetMaxLenString( settings, colIdx )
{
	var column = settings.aoColumns[colIdx];

	if (! column.maxLenString) {
		var s, max='', maxLen = -1;
	
		for ( var i=0, ien=settings.aiDisplayMaster.length ; i<ien ; i++ ) {
			var rowIdx = settings.aiDisplayMaster[i];
			var data = _fnGetRowDisplay(settings, rowIdx)[colIdx];

			var cellString = data && typeof data === 'object' && data.nodeType
				? data.innerHTML
				: data+'';

			// Remove id / name attributes from elements so they
			// don't interfere with existing elements
			cellString = cellString
				.replace(/id=".*?"/g, '')
				.replace(/name=".*?"/g, '');

			s = _stripHtml(cellString)
				.replace( /&nbsp;/g, ' ' );
	
			if ( s.length > maxLen ) {
				// We want the HTML in the string, but the length that
				// is important is the stripped string
				max = cellString;
				maxLen = s.length;
			}
		}

		column.maxLenString = max;
	}

	return column.maxLenString;
}


/**
 * Append a CSS unit (only if required) to a string
 *  @param {string} value to css-ify
 *  @returns {string} value with css unit
 *  @memberof DataTable#oApi
 */
function _fnStringToCss( s )
{
	if ( s === null ) {
		return '0px';
	}

	if ( typeof s == 'number' ) {
		return s < 0 ?
			'0px' :
			s+'px';
	}

	// Check it has a unit character already
	return s.match(/\d$/) ?
		s+'px' :
		s;
}

/**
 * Re-insert the `col` elements for current visibility
 *
 * @param {*} settings DT settings
 */
function _colGroup( settings ) {
	var cols = settings.aoColumns;

	settings.colgroup.empty();

	for (i=0 ; i<cols.length ; i++) {
		if (cols[i].bVisible) {
			settings.colgroup.append(cols[i].colEl);
		}
	}
}


function _fnSortInit( settings ) {
	var target = settings.nTHead;
	var headerRows = target.querySelectorAll('tr');
	var titleRow = settings.titleRow;
	var notSelector = ':not([data-dt-order="disable"]):not([data-dt-order="icon-only"])';
	
	// Legacy support for `orderCellsTop`
	if (titleRow === true) {
		target = headerRows[0];
	}
	else if (titleRow === false) {
		target = headerRows[ headerRows.length - 1 ];
	}
	else if (titleRow !== null) {
		target = headerRows[titleRow];
	}
	// else - all rows

	if (settings.orderHandler) {
		_fnSortAttachListener(
			settings,
			target,
			target === settings.nTHead
				? 'tr'+notSelector+' th'+notSelector+', tr'+notSelector+' td'+notSelector
				: 'th'+notSelector+', td'+notSelector
		);
	}

	// Need to resolve the user input array into our internal structure
	var order = [];
	_fnSortResolve( settings, order, settings.aaSorting );

	settings.aaSorting = order;
}


function _fnSortAttachListener(settings, node, selector, column, callback) {
	_fnBindAction( node, selector, function (e) {
		var run = false;
		var columns = column === undefined
			? _fnColumnsFromHeader( e.target )
			: Array.isArray(column)
				? column
				: [column];

		if ( columns.length ) {
			for ( var i=0, ien=columns.length ; i<ien ; i++ ) {
				var ret = _fnSortAdd( settings, columns[i], i, e.shiftKey );

				if (ret !== false) {
					run = true;
				}					

				// If the first entry is no sort, then subsequent
				// sort columns are ignored
				if (settings.aaSorting.length === 1 && settings.aaSorting[0][1] === '') {
					break;
				}
			}

			if (run) {
				_fnProcessingRun(settings, true, function () {
					_fnSort( settings );
					_fnSortDisplay( settings, settings.aiDisplay );

					_fnReDraw( settings, false, false );

					if (callback) {
						callback();
					}
				});
			}
		}
	} );
}

/**
 * Sort the display array to match the master's order
 * @param {*} settings
 */
function _fnSortDisplay(settings, display) {
	if (display.length < 2) {
		return;
	}

	var master = settings.aiDisplayMaster;
	var masterMap = {};
	var map = {};
	var i;

	// Rather than needing an `indexOf` on master array, we can create a map
	for (i=0 ; i<master.length ; i++) {
		masterMap[master[i]] = i;
	}

	// And then cache what would be the indexOf fom the display
	for (i=0 ; i<display.length ; i++) {
		map[display[i]] = masterMap[display[i]];
	}

	display.sort(function(a, b){
		// Short version of this function is simply `master.indexOf(a) - master.indexOf(b);`
		return map[a] - map[b];
	});
}


function _fnSortResolve (settings, nestedSort, sort) {
	var push = function ( a ) {
		if ($.isPlainObject(a)) {
			if (a.idx !== undefined) {
				// Index based ordering
				nestedSort.push([a.idx, a.dir]);
			}
			else if (a.name) {
				// Name based ordering
				var cols = _pluck( settings.aoColumns, 'sName');
				var idx = cols.indexOf(a.name);

				if (idx !== -1) {
					nestedSort.push([idx, a.dir]);
				}
			}
		}
		else {
			// Plain column index and direction pair
			nestedSort.push(a);
		}
	};

	if ( $.isPlainObject(sort) ) {
		// Object
		push(sort);
	}
	else if ( sort.length && typeof sort[0] === 'number' ) {
		// 1D array
		push(sort);
	}
	else if ( sort.length ) {
		// 2D array
		for (var z=0; z<sort.length; z++) {
			push(sort[z]); // Object or array
		}
	}
}


function _fnSortFlatten ( settings )
{
	var
		i, k, kLen,
		aSort = [],
		extSort = DataTable.ext.type.order,
		aoColumns = settings.aoColumns,
		aDataSort, iCol, sType, srcCol,
		fixed = settings.aaSortingFixed,
		fixedObj = $.isPlainObject( fixed ),
		nestedSort = [];
	
	if ( ! settings.oFeatures.bSort ) {
		return aSort;
	}

	// Build the sort array, with pre-fix and post-fix options if they have been
	// specified
	if ( Array.isArray( fixed ) ) {
		_fnSortResolve( settings, nestedSort, fixed );
	}

	if ( fixedObj && fixed.pre ) {
		_fnSortResolve( settings, nestedSort, fixed.pre );
	}

	_fnSortResolve( settings, nestedSort, settings.aaSorting );

	if (fixedObj && fixed.post ) {
		_fnSortResolve( settings, nestedSort, fixed.post );
	}

	for ( i=0 ; i<nestedSort.length ; i++ )
	{
		srcCol = nestedSort[i][0];

		if ( aoColumns[ srcCol ] ) {
			aDataSort = aoColumns[ srcCol ].aDataSort;

			for ( k=0, kLen=aDataSort.length ; k<kLen ; k++ )
			{
				iCol = aDataSort[k];
				sType = aoColumns[ iCol ].sType || 'string';

				if ( nestedSort[i]._idx === undefined ) {
					nestedSort[i]._idx = aoColumns[iCol].asSorting.indexOf(nestedSort[i][1]);
				}

				if ( nestedSort[i][1] ) {
					aSort.push( {
						src:       srcCol,
						col:       iCol,
						dir:       nestedSort[i][1],
						index:     nestedSort[i]._idx,
						type:      sType,
						formatter: extSort[ sType+"-pre" ],
						sorter:    extSort[ sType+"-"+nestedSort[i][1] ]
					} );
				}
			}
		}
	}

	return aSort;
}

/**
 * Change the order of the table
 *  @param {object} oSettings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnSort ( oSettings, col, dir )
{
	var
		i, ien, iLen,
		aiOrig = [],
		extSort = DataTable.ext.type.order,
		aoData = oSettings.aoData,
		sortCol,
		displayMaster = oSettings.aiDisplayMaster,
		aSort;

	// Make sure the columns all have types defined
	_fnColumnTypes(oSettings);

	// Allow a specific column to be sorted, which will _not_ alter the display
	// master
	if (col !== undefined) {
		var srcCol = oSettings.aoColumns[col];

		aSort = [{
			src:       col,
			col:       col,
			dir:       dir,
			index:     0,
			type:      srcCol.sType,
			formatter: extSort[ srcCol.sType+"-pre" ],
			sorter:    extSort[ srcCol.sType+"-"+dir ]
		}];
		displayMaster = displayMaster.slice();
	}
	else {
		aSort = _fnSortFlatten( oSettings );
	}

	for ( i=0, ien=aSort.length ; i<ien ; i++ ) {
		sortCol = aSort[i];

		// Load the data needed for the sort, for each cell
		_fnSortData( oSettings, sortCol.col );
	}

	/* No sorting required if server-side or no sorting array */
	if ( _fnDataSource( oSettings ) != 'ssp' && aSort.length !== 0 )
	{
		// Reset the initial positions on each pass so we get a stable sort
		for ( i=0, iLen=displayMaster.length ; i<iLen ; i++ ) {
			aiOrig[ i ] = i;
		}

		// If the first sort is desc, then reverse the array to preserve original
		// order, just in reverse
		if (aSort.length && aSort[0].dir === 'desc' && oSettings.orderDescReverse) {
			aiOrig.reverse();
		}

		/* Do the sort - here we want multi-column sorting based on a given data source (column)
		 * and sorting function (from oSort) in a certain direction. It's reasonably complex to
		 * follow on it's own, but this is what we want (example two column sorting):
		 *  fnLocalSorting = function(a,b){
		 *    var test;
		 *    test = oSort['string-asc']('data11', 'data12');
		 *      if (test !== 0)
		 *        return test;
		 *    test = oSort['numeric-desc']('data21', 'data22');
		 *    if (test !== 0)
		 *      return test;
		 *    return oSort['numeric-asc']( aiOrig[a], aiOrig[b] );
		 *  }
		 * Basically we have a test for each sorting column, if the data in that column is equal,
		 * test the next column. If all columns match, then we use a numeric sort on the row
		 * positions in the original data array to provide a stable sort.
		 */
		displayMaster.sort( function ( a, b ) {
			var
				x, y, k, test, sort,
				len=aSort.length,
				dataA = aoData[a]._aSortData,
				dataB = aoData[b]._aSortData;

			for ( k=0 ; k<len ; k++ ) {
				sort = aSort[k];

				// Data, which may have already been through a `-pre` function
				x = dataA[ sort.col ];
				y = dataB[ sort.col ];

				if (sort.sorter) {
					// If there is a custom sorter (`-asc` or `-desc`) for this
					// data type, use it
					test = sort.sorter(x, y);

					if ( test !== 0 ) {
						return test;
					}
				}
				else {
					// Otherwise, use generic sorting
					test = x<y ? -1 : x>y ? 1 : 0;

					if ( test !== 0 ) {
						return sort.dir === 'asc' ? test : -test;
					}
				}
			}

			x = aiOrig[a];
			y = aiOrig[b];

			return x<y ? -1 : x>y ? 1 : 0;
		} );
	}
	else if ( aSort.length === 0 ) {
		// Apply index order
		displayMaster.sort(function (x, y) {
			return x<y ? -1 : x>y ? 1 : 0;
		});
	}

	if (col === undefined) {
		// Tell the draw function that we have sorted the data
		oSettings.bSorted = true;
		oSettings.sortDetails = aSort;

		_fnCallbackFire( oSettings, null, 'order', [oSettings, aSort] );
	}

	return displayMaster;
}


/**
 * Function to run on user sort request
 *  @param {object} settings dataTables settings object
 *  @param {node} attachTo node to attach the handler to
 *  @param {int} colIdx column sorting index
 *  @param {int} addIndex Counter
 *  @param {boolean} [shift=false] Shift click add
 *  @param {function} [callback] callback function
 *  @memberof DataTable#oApi
 */
function _fnSortAdd ( settings, colIdx, addIndex, shift )
{
	var col = settings.aoColumns[ colIdx ];
	var sorting = settings.aaSorting;
	var asSorting = col.asSorting;
	var nextSortIdx;
	var next = function ( a, overflow ) {
		var idx = a._idx;
		if ( idx === undefined ) {
			idx = asSorting.indexOf(a[1]);
		}

		return idx+1 < asSorting.length ?
			idx+1 :
			overflow ?
				null :
				0;
	};

	if ( ! col.bSortable ) {
		return false;
	}

	// Convert to 2D array if needed
	if ( typeof sorting[0] === 'number' ) {
		sorting = settings.aaSorting = [ sorting ];
	}

	// If appending the sort then we are multi-column sorting
	if ( (shift || addIndex) && settings.oFeatures.bSortMulti ) {
		// Are we already doing some kind of sort on this column?
		var sortIdx = _pluck(sorting, '0').indexOf(colIdx);

		if ( sortIdx !== -1 ) {
			// Yes, modify the sort
			nextSortIdx = next( sorting[sortIdx], true );

			if ( nextSortIdx === null && sorting.length === 1 ) {
				nextSortIdx = 0; // can't remove sorting completely
			}

			if ( nextSortIdx === null ) {
				sorting.splice( sortIdx, 1 );
			}
			else {
				sorting[sortIdx][1] = asSorting[ nextSortIdx ];
				sorting[sortIdx]._idx = nextSortIdx;
			}
		}
		else if (shift) {
			// No sort on this column yet, being added by shift click
			// add it as itself
			sorting.push( [ colIdx, asSorting[0], 0 ] );
			sorting[sorting.length-1]._idx = 0;
		}
		else {
			// No sort on this column yet, being added from a colspan
			// so add with same direction as first column
			sorting.push( [ colIdx, sorting[0][1], 0 ] );
			sorting[sorting.length-1]._idx = 0;
		}
	}
	else if ( sorting.length && sorting[0][0] == colIdx ) {
		// Single column - already sorting on this column, modify the sort
		nextSortIdx = next( sorting[0] );

		sorting.length = 1;
		sorting[0][1] = asSorting[ nextSortIdx ];
		sorting[0]._idx = nextSortIdx;
	}
	else {
		// Single column - sort only on this column
		sorting.length = 0;
		sorting.push( [ colIdx, asSorting[0] ] );
		sorting[0]._idx = 0;
	}
}


/**
 * Set the sorting classes on table's body, Note: it is safe to call this function
 * when bSort and bSortClasses are false
 *  @param {object} oSettings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnSortingClasses( settings )
{
	var oldSort = settings.aLastSort;
	var sortClass = settings.oClasses.order.position;
	var sort = _fnSortFlatten( settings );
	var features = settings.oFeatures;
	var i, ien, colIdx;

	if ( features.bSort && features.bSortClasses ) {
		// Remove old sorting classes
		for ( i=0, ien=oldSort.length ; i<ien ; i++ ) {
			colIdx = oldSort[i].src;

			// Remove column sorting
			$( _pluck( settings.aoData, 'anCells', colIdx ) )
				.removeClass( sortClass + (i<2 ? i+1 : 3) );
		}

		// Add new column sorting
		for ( i=0, ien=sort.length ; i<ien ; i++ ) {
			colIdx = sort[i].src;

			$( _pluck( settings.aoData, 'anCells', colIdx ) )
				.addClass( sortClass + (i<2 ? i+1 : 3) );
		}
	}

	settings.aLastSort = sort;
}


// Get the data to sort a column, be it from cache, fresh (populating the
// cache), or from a sort formatter
function _fnSortData( settings, colIdx )
{
	// Custom sorting function - provided by the sort data type
	var column = settings.aoColumns[ colIdx ];
	var customSort = DataTable.ext.order[ column.sSortDataType ];
	var customData;

	if ( customSort ) {
		customData = customSort.call( settings.oInstance, settings, colIdx,
			_fnColumnIndexToVisible( settings, colIdx )
		);
	}

	// Use / populate cache
	var row, cellData;
	var formatter = DataTable.ext.type.order[ column.sType+"-pre" ];
	var data = settings.aoData;

	for ( var rowIdx=0 ; rowIdx<data.length ; rowIdx++ ) {
		// Sparse array
		if (! data[rowIdx]) {
			continue;
		}

		row = data[rowIdx];

		if ( ! row._aSortData ) {
			row._aSortData = [];
		}

		if ( ! row._aSortData[colIdx] || customSort ) {
			cellData = customSort ?
				customData[rowIdx] : // If there was a custom sort function, use data from there
				_fnGetCellData( settings, rowIdx, colIdx, 'sort' );

			row._aSortData[ colIdx ] = formatter ?
				formatter( cellData, settings ) :
				cellData;
		}
	}
}


/**
 * State information for a table
 *
 * @param {*} settings
 * @returns State object
 */
function _fnSaveState ( settings )
{
	if (settings._bLoadingState) {
		return;
	}

	// Sort state saving uses [[idx, order]] structure.
	var sorting = [];
	_fnSortResolve(settings, sorting, settings.aaSorting );

	/* Store the interesting variables */
	var columns = settings.aoColumns;
	var state = {
		time:    +new Date(),
		start:   settings._iDisplayStart,
		length:  settings._iDisplayLength,
		order:   sorting.map(function (sort) {
			// If a column name is available, use it
			return columns[sort[0]] && columns[sort[0]].sName
				? [ columns[sort[0]].sName, sort[1] ]
				: sort.slice();
		} ),
		search:  $.extend({}, settings.oPreviousSearch),
		columns: settings.aoColumns.map( function ( col, i ) {
			return {
				name: col.sName,
				visible: col.bVisible,
				search: $.extend({}, settings.aoPreSearchCols[i])
			};
		} )
	};

	settings.oSavedState = state;
	_fnCallbackFire( settings, "aoStateSaveParams", 'stateSaveParams', [settings, state] );
	
	if ( settings.oFeatures.bStateSave && !settings.bDestroying )
	{
		settings.fnStateSaveCallback.call( settings.oInstance, settings, state );
	}	
}


/**
 * Attempt to load a saved table state
 *  @param {object} oSettings dataTables settings object
 *  @param {object} oInit DataTables init object so we can override settings
 *  @param {function} callback Callback to execute when the state has been loaded
 *  @memberof DataTable#oApi
 */
function _fnLoadState ( settings, init, callback )
{
	if ( ! settings.oFeatures.bStateSave ) {
		callback();
		return;
	}

	var loaded = function(state) {
		_fnImplementState(settings, state, callback);
	}

	var state = settings.fnStateLoadCallback.call( settings.oInstance, settings, loaded );

	if ( state !== undefined ) {
		_fnImplementState( settings, state, callback );
	}
	// otherwise, wait for the loaded callback to be executed

	return true;
}

function _fnImplementState ( settings, s, callback) {
	var i, ien;
	var columns = settings.aoColumns;
	var currentNames = _pluck(settings.aoColumns, 'sName');

	settings._bLoadingState = true;

	// When StateRestore was introduced the state could now be implemented at any time
	// Not just initialisation. To do this an api instance is required in some places
	var api = settings._bInitComplete ? new DataTable.Api(settings) : null;

	if ( ! s || ! s.time ) {
		settings._bLoadingState = false;
		callback();
		return;
	}

	// Reject old data
	var duration = settings.iStateDuration;
	if ( duration > 0 && s.time < +new Date() - (duration*1000) ) {
		settings._bLoadingState = false;
		callback();
		return;
	}

	// Allow custom and plug-in manipulation functions to alter the saved data set and
	// cancelling of loading by returning false
	var abStateLoad = _fnCallbackFire( settings, 'aoStateLoadParams', 'stateLoadParams', [settings, s] );
	if ( abStateLoad.indexOf(false) !== -1 ) {
		settings._bLoadingState = false;
		callback();
		return;
	}

	// Store the saved state so it might be accessed at any time
	settings.oLoadedState = $.extend( true, {}, s );

	// This is needed for ColReorder, which has to happen first to allow all
	// the stored indexes to be usable. It is not publicly documented.
	_fnCallbackFire( settings, null, 'stateLoadInit', [settings, s], true );

	// Page Length
	if ( s.length !== undefined ) {
		// If already initialised just set the value directly so that the select element is also updated
		if (api) {
			api.page.len(s.length)
		}
		else {
			settings._iDisplayLength   = s.length;
		}
	}

	// Restore key features
	if ( s.start !== undefined ) {
		if(api === null) {
			settings._iDisplayStart    = s.start;
			settings.iInitDisplayStart = s.start;
		}
		else {
			_fnPageChange(settings, s.start/settings._iDisplayLength);
		}
	}

	// Order
	if ( s.order !== undefined ) {
		settings.aaSorting = [];
		$.each( s.order, function ( i, col ) {
			var set = [ col[0], col[1] ];

			// A column name was stored and should be used for restore
			if (typeof col[0] === 'string') {
				// Find the name from the current list of column names
				var idx = currentNames.indexOf(col[0]);

				if (idx < 0) {
					// If the column was not found ignore it and continue
					return;
				}

				set[0] = idx;
			}
			else if (set[0] >= columns.length) {
				// If the column index is out of bounds ignore it and continue
				return;
			}

			settings.aaSorting.push(set);
		} );
	}

	// Search
	if ( s.search !== undefined ) {
		$.extend( settings.oPreviousSearch, s.search );
	}

	// Columns
	if ( s.columns ) {
		var set = s.columns;
		var incoming = _pluck(s.columns, 'name');

		// Check if it is a 2.2 style state object with a `name` property for the columns, and if
		// the name was defined. If so, then create a new array that will map the state object
		// given, to the current columns (don't bother if they are already matching tho).
		if (incoming.join('').length && incoming.join('') !== currentNames.join('')) {
			set = [];

			// For each column, try to find the name in the incoming array
			for (i=0 ; i<currentNames.length ; i++) {
				if (currentNames[i] != '') {
					var idx = incoming.indexOf(currentNames[i]);

					if (idx >= 0) {
						set.push(s.columns[idx]);
					}
					else {
						// No matching column name in the state's columns, so this might be a new
						// column and thus can't have a state already.
						set.push({});
					}
				}
				else {
					// If no name, but other columns did have a name, then there is no knowing
					// where this one came from originally so it can't be restored.
					set.push({});
				}
			}
		}

		// If the number of columns to restore is different from current, then all bets are off.
		if (set.length === columns.length) {
			for ( i=0, ien=set.length ; i<ien ; i++ ) {
				var col = set[i];

				// Visibility
				if ( col.visible !== undefined ) {
					// If the api is defined, the table has been initialised so we need to use it rather than internal settings
					if (api) {
						// Don't redraw the columns on every iteration of this loop, we will do this at the end instead
						api.column(i).visible(col.visible, false);
					}
					else {
						columns[i].bVisible = col.visible;
					}
				}

				// Search
				if ( col.search !== undefined ) {
					$.extend( settings.aoPreSearchCols[i], col.search );
				}
			}

			// If the api is defined then we need to adjust the columns once the visibility has been changed
			if (api) {
				api.columns.adjust();
			}
		}
	}

	settings._bLoadingState = false;
	_fnCallbackFire( settings, 'aoStateLoaded', 'stateLoaded', [settings, s] );
	callback();
}

/**
 * Log an error message
 *  @param {object} settings dataTables settings object
 *  @param {int} level log error messages, or display them to the user
 *  @param {string} msg error message
 *  @param {int} tn Technical note id to get more information about the error.
 *  @memberof DataTable#oApi
 */
function _fnLog( settings, level, msg, tn )
{
	msg = 'DataTables warning: '+
		(settings ? 'table id='+settings.sTableId+' - ' : '')+msg;

	if ( tn ) {
		msg += '. For more information about this error, please see '+
		'https://datatables.net/tn/'+tn;
	}

	if ( ! level  ) {
		// Backwards compatibility pre 1.10
		var ext = DataTable.ext;
		var type = ext.sErrMode || ext.errMode;

		if ( settings ) {
			_fnCallbackFire( settings, null, 'dt-error', [ settings, tn, msg ], true );
		}

		if ( type == 'alert' ) {
			alert( msg );
		}
		else if ( type == 'throw' ) {
			throw new Error(msg);
		}
		else if ( typeof type == 'function' ) {
			type( settings, tn, msg );
		}
	}
	else if ( window.console && console.log ) {
		console.log( msg );
	}
}


/**
 * See if a property is defined on one object, if so assign it to the other object
 *  @param {object} ret target object
 *  @param {object} src source object
 *  @param {string} name property
 *  @param {string} [mappedName] name to map too - optional, name used if not given
 *  @memberof DataTable#oApi
 */
function _fnMap( ret, src, name, mappedName )
{
	if ( Array.isArray( name ) ) {
		$.each( name, function (i, val) {
			if ( Array.isArray( val ) ) {
				_fnMap( ret, src, val[0], val[1] );
			}
			else {
				_fnMap( ret, src, val );
			}
		} );

		return;
	}

	if ( mappedName === undefined ) {
		mappedName = name;
	}

	if ( src[name] !== undefined ) {
		ret[mappedName] = src[name];
	}
}


/**
 * Extend objects - very similar to jQuery.extend, but deep copy objects, and
 * shallow copy arrays. The reason we need to do this, is that we don't want to
 * deep copy array init values (such as aaSorting) since the dev wouldn't be
 * able to override them, but we do want to deep copy arrays.
 *  @param {object} out Object to extend
 *  @param {object} extender Object from which the properties will be applied to
 *      out
 *  @param {boolean} breakRefs If true, then arrays will be sliced to take an
 *      independent copy with the exception of the `data` or `aaData` parameters
 *      if they are present. This is so you can pass in a collection to
 *      DataTables and have that used as your data source without breaking the
 *      references
 *  @returns {object} out Reference, just for convenience - out === the return.
 *  @memberof DataTable#oApi
 *  @todo This doesn't take account of arrays inside the deep copied objects.
 */
function _fnExtend( out, extender, breakRefs )
{
	var val;

	for ( var prop in extender ) {
		if ( Object.prototype.hasOwnProperty.call(extender, prop) ) {
			val = extender[prop];

			if ( $.isPlainObject( val ) ) {
				if ( ! $.isPlainObject( out[prop] ) ) {
					out[prop] = {};
				}
				$.extend( true, out[prop], val );
			}
			else if ( breakRefs && prop !== 'data' && prop !== 'aaData' && Array.isArray(val) ) {
				out[prop] = val.slice();
			}
			else {
				out[prop] = val;
			}
		}
	}

	return out;
}


/**
 * Bind an event handers to allow a click or return key to activate the callback.
 * This is good for accessibility since a return on the keyboard will have the
 * same effect as a click, if the element has focus.
 *  @param {element} n Element to bind the action to
 *  @param {object|string} selector Selector (for delegated events) or data object
 *   to pass to the triggered function
 *  @param {function} fn Callback function for when the event is triggered
 *  @memberof DataTable#oApi
 */
function _fnBindAction( n, selector, fn )
{
	$(n)
		.on( 'click.DT', selector, function (e) {
			fn(e);
		} )
		.on( 'keypress.DT', selector, function (e){
			if ( e.which === 13 ) {
				e.preventDefault();
				fn(e);
			}
		} )
		.on( 'selectstart.DT', selector, function () {
			// Don't want a double click resulting in text selection
			return false;
		} );
}


/**
 * Register a callback function. Easily allows a callback function to be added to
 * an array store of callback functions that can then all be called together.
 *  @param {object} settings dataTables settings object
 *  @param {string} store Name of the array storage for the callbacks in oSettings
 *  @param {function} fn Function to be called back
 *  @memberof DataTable#oApi
 */
function _fnCallbackReg( settings, store, fn )
{
	if ( fn ) {
		settings[store].push(fn);
	}
}


/**
 * Fire callback functions and trigger events. Note that the loop over the
 * callback array store is done backwards! Further note that you do not want to
 * fire off triggers in time sensitive applications (for example cell creation)
 * as its slow.
 *  @param {object} settings dataTables settings object
 *  @param {string} callbackArr Name of the array storage for the callbacks in
 *      oSettings
 *  @param {string} eventName Name of the jQuery custom event to trigger. If
 *      null no trigger is fired
 *  @param {array} args Array of arguments to pass to the callback function /
 *      trigger
 *  @param {boolean} [bubbles] True if the event should bubble
 *  @memberof DataTable#oApi
 */
function _fnCallbackFire( settings, callbackArr, eventName, args, bubbles )
{
	var ret = [];

	if ( callbackArr ) {
		ret = settings[callbackArr].slice().reverse().map( function (val) {
			return val.apply( settings.oInstance, args );
		} );
	}

	if ( eventName !== null) {
		var e = $.Event( eventName+'.dt' );
		var table = $(settings.nTable);
		
		// Expose the DataTables API on the event object for easy access
		e.dt = settings.api;

		table[bubbles ?  'trigger' : 'triggerHandler']( e, args );

		// If not yet attached to the document, trigger the event
		// on the body directly to sort of simulate the bubble
		if (bubbles && table.parents('body').length === 0) {
			$('body').trigger( e, args );
		}

		ret.push( e.result );
	}

	return ret;
}


function _fnLengthOverflow ( settings )
{
	var
		start = settings._iDisplayStart,
		end = settings.fnDisplayEnd(),
		len = settings._iDisplayLength;

	/* If we have space to show extra rows (backing up from the end point - then do so */
	if ( start >= end )
	{
		start = end - len;
	}

	// Keep the start record on the current page
	start -= (start % len);

	if ( len === -1 || start < 0 )
	{
		start = 0;
	}

	settings._iDisplayStart = start;
}


function _fnRenderer( settings, type )
{
	var renderer = settings.renderer;
	var host = DataTable.ext.renderer[type];

	if ( $.isPlainObject( renderer ) && renderer[type] ) {
		// Specific renderer for this type. If available use it, otherwise use
		// the default.
		return host[renderer[type]] || host._;
	}
	else if ( typeof renderer === 'string' ) {
		// Common renderer - if there is one available for this type use it,
		// otherwise use the default
		return host[renderer] || host._;
	}

	// Use the default
	return host._;
}


/**
 * Detect the data source being used for the table. Used to simplify the code
 * a little (ajax) and to make it compress a little smaller.
 *
 *  @param {object} settings dataTables settings object
 *  @returns {string} Data source
 *  @memberof DataTable#oApi
 */
function _fnDataSource ( settings )
{
	if ( settings.oFeatures.bServerSide ) {
		return 'ssp';
	}
	else if ( settings.ajax ) {
		return 'ajax';
	}
	return 'dom';
}

/**
 * Common replacement for language strings
 *
 * @param {*} settings DT settings object
 * @param {*} str String with values to replace
 * @param {*} entries Plural number for _ENTRIES_ - can be undefined
 * @returns String
 */
function _fnMacros ( settings, str, entries )
{
	// When infinite scrolling, we are always starting at 1. _iDisplayStart is
	// used only internally
	var
		formatter  = settings.fnFormatNumber,
		start      = settings._iDisplayStart+1,
		len        = settings._iDisplayLength,
		vis        = settings.fnRecordsDisplay(),
		max        = settings.fnRecordsTotal(),
		all        = len === -1;

	return str.
		replace(/_START_/g, formatter.call( settings, start ) ).
		replace(/_END_/g,   formatter.call( settings, settings.fnDisplayEnd() ) ).
		replace(/_MAX_/g,   formatter.call( settings, max ) ).
		replace(/_TOTAL_/g, formatter.call( settings, vis ) ).
		replace(/_PAGE_/g,  formatter.call( settings, all ? 1 : Math.ceil( start / len ) ) ).
		replace(/_PAGES_/g, formatter.call( settings, all ? 1 : Math.ceil( vis / len ) ) ).
		replace(/_ENTRIES_/g, settings.api.i18n('entries', '', entries) ).
		replace(/_ENTRIES-MAX_/g, settings.api.i18n('entries', '', max) ).
		replace(/_ENTRIES-TOTAL_/g, settings.api.i18n('entries', '', vis) );
}

/**
 * Add elements to an array as quickly as possible, but stack stafe.
 *
 * @param {*} arr Array to add the data to
 * @param {*} data Data array that is to be added
 * @returns 
 */
function _fnArrayApply(arr, data) {
	if (! data) {
		return;
	}

	// Chrome can throw a max stack error if apply is called with
	// too large an array, but apply is faster.
	if (data.length < 10000) {
		arr.push.apply(arr, data);
	}
	else {
		for (i=0 ; i<data.length ; i++) {
			arr.push(data[i]);
		}
	}
}

/**
 * Add one or more listeners to the table
 *
 * @param {*} that JQ for the table
 * @param {*} name Event name
 * @param {*} src Listener(s)
 */
function _fnListener(that, name, src) {
	if (!Array.isArray(src)) {
		src = [src];
	}

	for (i=0 ; i<src.length ; i++) {
		that.on(name + '.dt', src[i]);
	}
}



/**
 * Computed structure of the DataTables API, defined by the options passed to
 * `DataTable.Api.register()` when building the API.
 *
 * The structure is built in order to speed creation and extension of the Api
 * objects since the extensions are effectively pre-parsed.
 *
 * The array is an array of objects with the following structure, where this
 * base array represents the Api prototype base:
 *
 *     [
 *       {
 *         name:      'data'                -- string   - Property name
 *         val:       function () {},       -- function - Api method (or undefined if just an object
 *         methodExt: [ ... ],              -- array    - Array of Api object definitions to extend the method result
 *         propExt:   [ ... ]               -- array    - Array of Api object definitions to extend the property
 *       },
 *       {
 *         name:     'row'
 *         val:       {},
 *         methodExt: [ ... ],
 *         propExt:   [
 *           {
 *             name:      'data'
 *             val:       function () {},
 *             methodExt: [ ... ],
 *             propExt:   [ ... ]
 *           },
 *           ...
 *         ]
 *       }
 *     ]
 *
 * @type {Array}
 * @ignore
 */
var __apiStruct = [];


/**
 * `Array.prototype` reference.
 *
 * @type object
 * @ignore
 */
var __arrayProto = Array.prototype;


/**
 * Abstraction for `context` parameter of the `Api` constructor to allow it to
 * take several different forms for ease of use.
 *
 * Each of the input parameter types will be converted to a DataTables settings
 * object where possible.
 *
 * @param  {string|node|jQuery|object} mixed DataTable identifier. Can be one
 *   of:
 *
 *   * `string` - jQuery selector. Any DataTables' matching the given selector
 *     with be found and used.
 *   * `node` - `TABLE` node which has already been formed into a DataTable.
 *   * `jQuery` - A jQuery object of `TABLE` nodes.
 *   * `object` - DataTables settings object
 *   * `DataTables.Api` - API instance
 * @return {array|null} Matching DataTables settings objects. `null` or
 *   `undefined` is returned if no matching DataTable is found.
 * @ignore
 */
var _toSettings = function ( mixed )
{
	var idx, jq;
	var settings = DataTable.settings;
	var tables = _pluck(settings, 'nTable');

	if ( ! mixed ) {
		return [];
	}
	else if ( mixed.nTable && mixed.oFeatures ) {
		// DataTables settings object
		return [ mixed ];
	}
	else if ( mixed.nodeName && mixed.nodeName.toLowerCase() === 'table' ) {
		// Table node
		idx = tables.indexOf(mixed);
		return idx !== -1 ? [ settings[idx] ] : null;
	}
	else if ( mixed && typeof mixed.settings === 'function' ) {
		return mixed.settings().toArray();
	}
	else if ( typeof mixed === 'string' ) {
		// jQuery selector
		jq = $(mixed).get();
	}
	else if ( mixed instanceof $ ) {
		// jQuery object (also DataTables instance)
		jq = mixed.get();
	}

	if ( jq ) {
		return settings.filter(function (v, idx) {
			return jq.includes(tables[idx]);
		});
	}
};


/**
 * DataTables API class - used to control and interface with  one or more
 * DataTables enhanced tables.
 *
 * The API class is heavily based on jQuery, presenting a chainable interface
 * that you can use to interact with tables. Each instance of the API class has
 * a "context" - i.e. the tables that it will operate on. This could be a single
 * table, all tables on a page or a sub-set thereof.
 *
 * Additionally the API is designed to allow you to easily work with the data in
 * the tables, retrieving and manipulating it as required. This is done by
 * presenting the API class as an array like interface. The contents of the
 * array depend upon the actions requested by each method (for example
 * `rows().nodes()` will return an array of nodes, while `rows().data()` will
 * return an array of objects or arrays depending upon your table's
 * configuration). The API object has a number of array like methods (`push`,
 * `pop`, `reverse` etc) as well as additional helper methods (`each`, `pluck`,
 * `unique` etc) to assist your working with the data held in a table.
 *
 * Most methods (those which return an Api instance) are chainable, which means
 * the return from a method call also has all of the methods available that the
 * top level object had. For example, these two calls are equivalent:
 *
 *     // Not chained
 *     api.row.add( {...} );
 *     api.draw();
 *
 *     // Chained
 *     api.row.add( {...} ).draw();
 *
 * @class DataTable.Api
 * @param {array|object|string|jQuery} context DataTable identifier. This is
 *   used to define which DataTables enhanced tables this API will operate on.
 *   Can be one of:
 *
 *   * `string` - jQuery selector. Any DataTables' matching the given selector
 *     with be found and used.
 *   * `node` - `TABLE` node which has already been formed into a DataTable.
 *   * `jQuery` - A jQuery object of `TABLE` nodes.
 *   * `object` - DataTables settings object
 * @param {array} [data] Data to initialise the Api instance with.
 *
 * @example
 *   // Direct initialisation during DataTables construction
 *   var api = $('#example').DataTable();
 *
 * @example
 *   // Initialisation using a DataTables jQuery object
 *   var api = $('#example').dataTable().api();
 *
 * @example
 *   // Initialisation as a constructor
 *   var api = new DataTable.Api( 'table.dataTable' );
 */
_Api = function ( context, data )
{
	if ( ! (this instanceof _Api) ) {
		return new _Api( context, data );
	}

	var i;
	var settings = [];
	var ctxSettings = function ( o ) {
		var a = _toSettings( o );
		if ( a ) {
			settings.push.apply( settings, a );
		}
	};

	if ( Array.isArray( context ) ) {
		for ( i=0 ; i<context.length ; i++ ) {
			ctxSettings( context[i] );
		}
	}
	else {
		ctxSettings( context );
	}

	// Remove duplicates
	this.context = settings.length > 1
		? _unique( settings )
		: settings;

	// Initial data
	_fnArrayApply(this, data);

	// selector
	this.selector = {
		rows: null,
		cols: null,
		opts: null
	};

	_Api.extend( this, this, __apiStruct );
};

DataTable.Api = _Api;

// Don't destroy the existing prototype, just extend it. Required for jQuery 2's
// isPlainObject.
$.extend( _Api.prototype, {
	any: function ()
	{
		return this.count() !== 0;
	},

	context: [], // array of table settings objects

	count: function ()
	{
		return this.flatten().length;
	},

	each: function ( fn )
	{
		for ( var i=0, ien=this.length ; i<ien; i++ ) {
			fn.call( this, this[i], i, this );
		}

		return this;
	},

	eq: function ( idx )
	{
		var ctx = this.context;

		return ctx.length > idx ?
			new _Api( ctx[idx], this[idx] ) :
			null;
	},

	filter: function ( fn )
	{
		var a = __arrayProto.filter.call( this, fn, this );

		return new _Api( this.context, a );
	},

	flatten: function ()
	{
		var a = [];

		return new _Api( this.context, a.concat.apply( a, this.toArray() ) );
	},

	get: function ( idx )
	{
		return this[ idx ];
	},

	join:    __arrayProto.join,

	includes: function ( find ) {
		return this.indexOf( find ) === -1 ? false : true;
	},

	indexOf: __arrayProto.indexOf,

	iterator: function ( flatten, type, fn, alwaysNew ) {
		var
			a = [], ret,
			i, ien, j, jen,
			context = this.context,
			rows, items, item,
			selector = this.selector;

		// Argument shifting
		if ( typeof flatten === 'string' ) {
			alwaysNew = fn;
			fn = type;
			type = flatten;
			flatten = false;
		}

		for ( i=0, ien=context.length ; i<ien ; i++ ) {
			var apiInst = new _Api( context[i] );

			if ( type === 'table' ) {
				ret = fn.call( apiInst, context[i], i );

				if ( ret !== undefined ) {
					a.push( ret );
				}
			}
			else if ( type === 'columns' || type === 'rows' ) {
				// this has same length as context - one entry for each table
				ret = fn.call( apiInst, context[i], this[i], i );

				if ( ret !== undefined ) {
					a.push( ret );
				}
			}
			else if ( type === 'every' || type === 'column' || type === 'column-rows' || type === 'row' || type === 'cell' ) {
				// columns and rows share the same structure.
				// 'this' is an array of column indexes for each context
				items = this[i];

				if ( type === 'column-rows' ) {
					rows = _selector_row_indexes( context[i], selector.opts );
				}

				for ( j=0, jen=items.length ; j<jen ; j++ ) {
					item = items[j];

					if ( type === 'cell' ) {
						ret = fn.call( apiInst, context[i], item.row, item.column, i, j );
					}
					else {
						ret = fn.call( apiInst, context[i], item, i, j, rows );
					}

					if ( ret !== undefined ) {
						a.push( ret );
					}
				}
			}
		}

		if ( a.length || alwaysNew ) {
			var api = new _Api( context, flatten ? a.concat.apply( [], a ) : a );
			var apiSelector = api.selector;
			apiSelector.rows = selector.rows;
			apiSelector.cols = selector.cols;
			apiSelector.opts = selector.opts;
			return api;
		}
		return this;
	},

	lastIndexOf: __arrayProto.lastIndexOf,

	length:  0,

	map: function ( fn )
	{
		var a = __arrayProto.map.call( this, fn, this );

		return new _Api( this.context, a );
	},

	pluck: function ( prop )
	{
		var fn = DataTable.util.get(prop);

		return this.map( function ( el ) {
			return fn(el);
		} );
	},

	pop:     __arrayProto.pop,

	push:    __arrayProto.push,

	reduce: __arrayProto.reduce,

	reduceRight: __arrayProto.reduceRight,

	reverse: __arrayProto.reverse,

	// Object with rows, columns and opts
	selector: null,

	shift:   __arrayProto.shift,

	slice: function () {
		return new _Api( this.context, this );
	},

	sort:    __arrayProto.sort,

	splice:  __arrayProto.splice,

	toArray: function ()
	{
		return __arrayProto.slice.call( this );
	},

	to$: function ()
	{
		return $( this );
	},

	toJQuery: function ()
	{
		return $( this );
	},

	unique: function ()
	{
		return new _Api( this.context, _unique(this.toArray()) );
	},

	unshift: __arrayProto.unshift
} );


function _api_scope( scope, fn, struc ) {
	return function () {
		var ret = fn.apply( scope || this, arguments );

		// Method extension
		_Api.extend( ret, ret, struc.methodExt );
		return ret;
	};
}

function _api_find( src, name ) {
	for ( var i=0, ien=src.length ; i<ien ; i++ ) {
		if ( src[i].name === name ) {
			return src[i];
		}
	}
	return null;
}

window.__apiStruct = __apiStruct;

_Api.extend = function ( scope, obj, ext )
{
	// Only extend API instances and static properties of the API
	if ( ! ext.length || ! obj || ( ! (obj instanceof _Api) && ! obj.__dt_wrapper ) ) {
		return;
	}

	var
		i, ien,
		struct;

	for ( i=0, ien=ext.length ; i<ien ; i++ ) {
		struct = ext[i];

		if (struct.name === '__proto__') {
			continue;
		}

		// Value
		obj[ struct.name ] = struct.type === 'function' ?
			_api_scope( scope, struct.val, struct ) :
			struct.type === 'object' ?
				{} :
				struct.val;

		obj[ struct.name ].__dt_wrapper = true;

		// Property extension
		_Api.extend( scope, obj[ struct.name ], struct.propExt );
	}
};

//     [
//       {
//         name:      'data'                -- string   - Property name
//         val:       function () {},       -- function - Api method (or undefined if just an object
//         methodExt: [ ... ],              -- array    - Array of Api object definitions to extend the method result
//         propExt:   [ ... ]               -- array    - Array of Api object definitions to extend the property
//       },
//       {
//         name:     'row'
//         val:       {},
//         methodExt: [ ... ],
//         propExt:   [
//           {
//             name:      'data'
//             val:       function () {},
//             methodExt: [ ... ],
//             propExt:   [ ... ]
//           },
//           ...
//         ]
//       }
//     ]


_Api.register = _api_register = function ( name, val )
{
	if ( Array.isArray( name ) ) {
		for ( var j=0, jen=name.length ; j<jen ; j++ ) {
			_Api.register( name[j], val );
		}
		return;
	}

	var
		i, ien,
		heir = name.split('.'),
		struct = __apiStruct,
		key, method;

	for ( i=0, ien=heir.length ; i<ien ; i++ ) {
		method = heir[i].indexOf('()') !== -1;
		key = method ?
			heir[i].replace('()', '') :
			heir[i];

		var src = _api_find( struct, key );
		if ( ! src ) {
			src = {
				name:      key,
				val:       {},
				methodExt: [],
				propExt:   [],
				type:      'object'
			};
			struct.push( src );
		}

		if ( i === ien-1 ) {
			src.val = val;
			src.type = typeof val === 'function' ?
				'function' :
				$.isPlainObject( val ) ?
					'object' :
					'other';
		}
		else {
			struct = method ?
				src.methodExt :
				src.propExt;
		}
	}
};

_Api.registerPlural = _api_registerPlural = function ( pluralName, singularName, val ) {
	_Api.register( pluralName, val );

	_Api.register( singularName, function () {
		var ret = val.apply( this, arguments );

		if ( ret === this ) {
			// Returned item is the API instance that was passed in, return it
			return this;
		}
		else if ( ret instanceof _Api ) {
			// New API instance returned, want the value from the first item
			// in the returned array for the singular result.
			return ret.length ?
				Array.isArray( ret[0] ) ?
					new _Api( ret.context, ret[0] ) : // Array results are 'enhanced'
					ret[0] :
				undefined;
		}

		// Non-API return - just fire it back
		return ret;
	} );
};


/**
 * Selector for HTML tables. Apply the given selector to the give array of
 * DataTables settings objects.
 *
 * @param {string|integer} [selector] jQuery selector string or integer
 * @param  {array} Array of DataTables settings objects to be filtered
 * @return {array}
 * @ignore
 */
var __table_selector = function ( selector, a )
{
	if ( Array.isArray(selector) ) {
		var result = [];

		selector.forEach(function (sel) {
			var inner = __table_selector(sel, a);

			_fnArrayApply(result, inner);
		});

		return result.filter( function (item) {
			return item;
		});
	}

	// Integer is used to pick out a table by index
	if ( typeof selector === 'number' ) {
		return [ a[ selector ] ];
	}

	// Perform a jQuery selector on the table nodes
	var nodes = a.map( function (el) {
		return el.nTable;
	} );

	return $(nodes)
		.filter( selector )
		.map( function () {
			// Need to translate back from the table node to the settings
			var idx = nodes.indexOf(this);
			return a[ idx ];
		} )
		.toArray();
};



/**
 * Context selector for the API's context (i.e. the tables the API instance
 * refers to.
 *
 * @name    DataTable.Api#tables
 * @param {string|integer} [selector] Selector to pick which tables the iterator
 *   should operate on. If not given, all tables in the current context are
 *   used. This can be given as a jQuery selector (for example `':gt(0)'`) to
 *   select multiple tables or as an integer to select a single table.
 * @returns {DataTable.Api} Returns a new API instance if a selector is given.
 */
_api_register( 'tables()', function ( selector ) {
	// A new instance is created if there was a selector specified
	return selector !== undefined && selector !== null ?
		new _Api( __table_selector( selector, this.context ) ) :
		this;
} );


_api_register( 'table()', function ( selector ) {
	var tables = this.tables( selector );
	var ctx = tables.context;

	// Truncate to the first matched table
	return ctx.length ?
		new _Api( ctx[0] ) :
		tables;
} );

// Common methods, combined to reduce size
[
	['nodes', 'node', 'nTable'],
	['body', 'body', 'nTBody'],
	['header', 'header', 'nTHead'],
	['footer', 'footer', 'nTFoot'],
].forEach(function (item) {
	_api_registerPlural(
		'tables().' + item[0] + '()',
		'table().' + item[1] + '()' ,
		function () {
			return this.iterator( 'table', function ( ctx ) {
				return ctx[item[2]];
			}, 1 );
		}
	);
});

// Structure methods
[
	['header', 'aoHeader'],
	['footer', 'aoFooter'],
].forEach(function (item) {
	_api_register( 'table().' + item[0] + '.structure()' , function (selector) {
		var indexes = this.columns(selector).indexes().flatten().toArray();
		var ctx = this.context[0];
		var structure = _fnHeaderLayout(ctx, ctx[item[1]], indexes);

		// The structure is in column index order - but from this method we want the return to be
		// in the columns() selector API order. In order to do that we need to map from one form
		// to the other
		var orderedIndexes = indexes.slice().sort(function (a, b) {
			return a - b;
		});

		return structure.map(function (row) {
			return indexes.map(function (colIdx) {
				return row[orderedIndexes.indexOf(colIdx)];
			});
		});
	});
});


_api_registerPlural( 'tables().containers()', 'table().container()' , function () {
	return this.iterator( 'table', function ( ctx ) {
		return ctx.nTableWrapper;
	}, 1 );
} );

_api_register( 'tables().every()', function ( fn ) {
	var that = this;

	return this.iterator('table', function (s, i) {
		fn.call(that.table(i), i);
	});
});

_api_register( 'caption()', function ( value, side ) {
	var context = this.context;

	// Getter - return existing node's content
	if ( value === undefined ) {
		var caption = context[0].captionNode;

		return caption && context.length ?
			caption.innerHTML : 
			null;
	}

	return this.iterator( 'table', function ( ctx ) {
		var table = $(ctx.nTable);
		var caption = $(ctx.captionNode);
		var container = $(ctx.nTableWrapper);

		// Create the node if it doesn't exist yet
		if ( ! caption.length ) {
			caption = $('<caption/>').html( value );
			ctx.captionNode = caption[0];

			// If side isn't set, we need to insert into the document to let the
			// CSS decide so we can read it back, otherwise there is no way to
			// know if the CSS would put it top or bottom for scrolling
			if (! side) {
				table.prepend(caption);

				side = caption.css('caption-side');
			}
		}

		caption.html( value );

		if ( side ) {
			caption.css( 'caption-side', side );
			caption[0]._captionSide = side;
		}

		if (container.find('div.dataTables_scroll').length) {
			var selector = (side === 'top' ? 'Head' : 'Foot');

			container.find('div.dataTables_scroll'+ selector +' table').prepend(caption);
		}
		else {
			table.prepend(caption);
		}
	}, 1 );
} );

_api_register( 'caption.node()', function () {
	var ctx = this.context;

	return ctx.length ? ctx[0].captionNode : null;
} );


/**
 * Redraw the tables in the current context.
 */
_api_register( 'draw()', function ( paging ) {
	return this.iterator( 'table', function ( settings ) {
		if ( paging === 'page' ) {
			_fnDraw( settings );
		}
		else {
			if ( typeof paging === 'string' ) {
				paging = paging === 'full-hold' ?
					false :
					true;
			}

			_fnReDraw( settings, paging===false );
		}
	} );
} );



/**
 * Get the current page index.
 *
 * @return {integer} Current page index (zero based)
 *//**
 * Set the current page.
 *
 * Note that if you attempt to show a page which does not exist, DataTables will
 * not throw an error, but rather reset the paging.
 *
 * @param {integer|string} action The paging action to take. This can be one of:
 *  * `integer` - The page index to jump to
 *  * `string` - An action to take:
 *    * `first` - Jump to first page.
 *    * `next` - Jump to the next page
 *    * `previous` - Jump to previous page
 *    * `last` - Jump to the last page.
 * @returns {DataTables.Api} this
 */
_api_register( 'page()', function ( action ) {
	if ( action === undefined ) {
		return this.page.info().page; // not an expensive call
	}

	// else, have an action to take on all tables
	return this.iterator( 'table', function ( settings ) {
		_fnPageChange( settings, action );
	} );
} );


/**
 * Paging information for the first table in the current context.
 *
 * If you require paging information for another table, use the `table()` method
 * with a suitable selector.
 *
 * @return {object} Object with the following properties set:
 *  * `page` - Current page index (zero based - i.e. the first page is `0`)
 *  * `pages` - Total number of pages
 *  * `start` - Display index for the first record shown on the current page
 *  * `end` - Display index for the last record shown on the current page
 *  * `length` - Display length (number of records). Note that generally `start
 *    + length = end`, but this is not always true, for example if there are
 *    only 2 records to show on the final page, with a length of 10.
 *  * `recordsTotal` - Full data set length
 *  * `recordsDisplay` - Data set length once the current filtering criterion
 *    are applied.
 */
_api_register( 'page.info()', function () {
	if ( this.context.length === 0 ) {
		return undefined;
	}

	var
		settings   = this.context[0],
		start      = settings._iDisplayStart,
		len        = settings.oFeatures.bPaginate ? settings._iDisplayLength : -1,
		visRecords = settings.fnRecordsDisplay(),
		all        = len === -1;

	return {
		"page":           all ? 0 : Math.floor( start / len ),
		"pages":          all ? 1 : Math.ceil( visRecords / len ),
		"start":          start,
		"end":            settings.fnDisplayEnd(),
		"length":         len,
		"recordsTotal":   settings.fnRecordsTotal(),
		"recordsDisplay": visRecords,
		"serverSide":     _fnDataSource( settings ) === 'ssp'
	};
} );


/**
 * Get the current page length.
 *
 * @return {integer} Current page length. Note `-1` indicates that all records
 *   are to be shown.
 *//**
 * Set the current page length.
 *
 * @param {integer} Page length to set. Use `-1` to show all records.
 * @returns {DataTables.Api} this
 */
_api_register( 'page.len()', function ( len ) {
	// Note that we can't call this function 'length()' because `length`
	// is a Javascript property of functions which defines how many arguments
	// the function expects.
	if ( len === undefined ) {
		return this.context.length !== 0 ?
			this.context[0]._iDisplayLength :
			undefined;
	}

	// else, set the page length
	return this.iterator( 'table', function ( settings ) {
		_fnLengthChange( settings, len );
	} );
} );



var __reload = function ( settings, holdPosition, callback ) {
	// Use the draw event to trigger a callback
	if ( callback ) {
		var api = new _Api( settings );

		api.one( 'draw', function () {
			callback( api.ajax.json() );
		} );
	}

	if ( _fnDataSource( settings ) == 'ssp' ) {
		_fnReDraw( settings, holdPosition );
	}
	else {
		_fnProcessingDisplay( settings, true );

		// Cancel an existing request
		var xhr = settings.jqXHR;
		if ( xhr && xhr.readyState !== 4 ) {
			xhr.abort();
		}

		// Trigger xhr
		_fnBuildAjax( settings, {}, function( json ) {
			_fnClearTable( settings );

			var data = _fnAjaxDataSrc( settings, json );
			for ( var i=0, ien=data.length ; i<ien ; i++ ) {
				_fnAddData( settings, data[i] );
			}

			_fnReDraw( settings, holdPosition );
			_fnInitComplete( settings );
			_fnProcessingDisplay( settings, false );
		} );
	}
};


/**
 * Get the JSON response from the last Ajax request that DataTables made to the
 * server. Note that this returns the JSON from the first table in the current
 * context.
 *
 * @return {object} JSON received from the server.
 */
_api_register( 'ajax.json()', function () {
	var ctx = this.context;

	if ( ctx.length > 0 ) {
		return ctx[0].json;
	}

	// else return undefined;
} );


/**
 * Get the data submitted in the last Ajax request
 */
_api_register( 'ajax.params()', function () {
	var ctx = this.context;

	if ( ctx.length > 0 ) {
		return ctx[0].oAjaxData;
	}

	// else return undefined;
} );


/**
 * Reload tables from the Ajax data source. Note that this function will
 * automatically re-draw the table when the remote data has been loaded.
 *
 * @param {boolean} [reset=true] Reset (default) or hold the current paging
 *   position. A full re-sort and re-filter is performed when this method is
 *   called, which is why the pagination reset is the default action.
 * @returns {DataTables.Api} this
 */
_api_register( 'ajax.reload()', function ( callback, resetPaging ) {
	return this.iterator( 'table', function (settings) {
		__reload( settings, resetPaging===false, callback );
	} );
} );


/**
 * Get the current Ajax URL. Note that this returns the URL from the first
 * table in the current context.
 *
 * @return {string} Current Ajax source URL
 *//**
 * Set the Ajax URL. Note that this will set the URL for all tables in the
 * current context.
 *
 * @param {string} url URL to set.
 * @returns {DataTables.Api} this
 */
_api_register( 'ajax.url()', function ( url ) {
	var ctx = this.context;

	if ( url === undefined ) {
		// get
		if ( ctx.length === 0 ) {
			return undefined;
		}
		ctx = ctx[0];

		return $.isPlainObject( ctx.ajax ) ?
			ctx.ajax.url :
			ctx.ajax;
	}

	// set
	return this.iterator( 'table', function ( settings ) {
		if ( $.isPlainObject( settings.ajax ) ) {
			settings.ajax.url = url;
		}
		else {
			settings.ajax = url;
		}
	} );
} );


/**
 * Load data from the newly set Ajax URL. Note that this method is only
 * available when `ajax.url()` is used to set a URL. Additionally, this method
 * has the same effect as calling `ajax.reload()` but is provided for
 * convenience when setting a new URL. Like `ajax.reload()` it will
 * automatically redraw the table once the remote data has been loaded.
 *
 * @returns {DataTables.Api} this
 */
_api_register( 'ajax.url().load()', function ( callback, resetPaging ) {
	// Same as a reload, but makes sense to present it for easy access after a
	// url change
	return this.iterator( 'table', function ( ctx ) {
		__reload( ctx, resetPaging===false, callback );
	} );
} );




var _selector_run = function ( type, selector, selectFn, settings, opts )
{
	var
		out = [], res,
		i, ien,
		selectorType = typeof selector;

	// Can't just check for isArray here, as an API or jQuery instance might be
	// given with their array like look
	if ( ! selector || selectorType === 'string' || selectorType === 'function' || selector.length === undefined ) {
		selector = [ selector ];
	}

	for ( i=0, ien=selector.length ; i<ien ; i++ ) {
		res = selectFn( typeof selector[i] === 'string' ? selector[i].trim() : selector[i] );

		// Remove empty items
		res = res.filter( function (item) {
			return item !== null && item !== undefined;
		});

		if ( res && res.length ) {
			out = out.concat( res );
		}
	}

	// selector extensions
	var ext = _ext.selector[ type ];
	if ( ext.length ) {
		for ( i=0, ien=ext.length ; i<ien ; i++ ) {
			out = ext[i]( settings, opts, out );
		}
	}

	return _unique( out );
};


var _selector_opts = function ( opts )
{
	if ( ! opts ) {
		opts = {};
	}

	// Backwards compatibility for 1.9- which used the terminology filter rather
	// than search
	if ( opts.filter && opts.search === undefined ) {
		opts.search = opts.filter;
	}

	return $.extend( {
		columnOrder: 'implied',
		search: 'none',
		order: 'current',
		page: 'all'
	}, opts );
};


// Reduce the API instance to the first item found
var _selector_first = function ( old )
{
	var inst = new _Api(old.context[0]);

	// Use a push rather than passing to the constructor, since it will
	// merge arrays down automatically, which isn't what is wanted here
	if (old.length) {
		inst.push( old[0] );
	}

	inst.selector = old.selector;

	// Limit to a single row / column / cell
	if (inst.length && inst[0].length > 1) {
		inst[0].splice(1);
	}

	return inst;
};


var _selector_row_indexes = function ( settings, opts )
{
	var
		i, ien, tmp, a=[],
		displayFiltered = settings.aiDisplay,
		displayMaster = settings.aiDisplayMaster;

	var
		search = opts.search,  // none, applied, removed
		order  = opts.order,   // applied, current, index (original - compatibility with 1.9)
		page   = opts.page;    // all, current

	if ( _fnDataSource( settings ) == 'ssp' ) {
		// In server-side processing mode, most options are irrelevant since
		// rows not shown don't exist and the index order is the applied order
		// Removed is a special case - for consistency just return an empty
		// array
		return search === 'removed' ?
			[] :
			_range( 0, displayMaster.length );
	}

	if ( page == 'current' ) {
		// Current page implies that order=current and filter=applied, since it is
		// fairly senseless otherwise, regardless of what order and search actually
		// are
		for ( i=settings._iDisplayStart, ien=settings.fnDisplayEnd() ; i<ien ; i++ ) {
			a.push( displayFiltered[i] );
		}
	}
	else if ( order == 'current' || order == 'applied' ) {
		if ( search == 'none') {
			a = displayMaster.slice();
		}
		else if ( search == 'applied' ) {
			a = displayFiltered.slice();
		}
		else if ( search == 'removed' ) {
			// O(n+m) solution by creating a hash map
			var displayFilteredMap = {};

			for ( i=0, ien=displayFiltered.length ; i<ien ; i++ ) {
				displayFilteredMap[displayFiltered[i]] = null;
			}

			displayMaster.forEach(function (item) {
				if (! Object.prototype.hasOwnProperty.call(displayFilteredMap, item)) {
					a.push(item);
				}
			});
		}
	}
	else if ( order == 'index' || order == 'original' ) {
		for ( i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
			if (! settings.aoData[i]) {
				continue;
			}

			if ( search == 'none' ) {
				a.push( i );
			}
			else { // applied | removed
				tmp = displayFiltered.indexOf(i);

				if ((tmp === -1 && search == 'removed') ||
					(tmp >= 0   && search == 'applied') )
				{
					a.push( i );
				}
			}
		}
	}
	else if ( typeof order === 'number' ) {
		// Order the rows by the given column
		var ordered = _fnSort(settings, order, 'asc');

		if (search === 'none') {
			a = ordered;
		}
		else { // applied | removed
			for (i=0; i<ordered.length; i++) {
				tmp = displayFiltered.indexOf(ordered[i]);

				if ((tmp === -1 && search == 'removed') ||
					(tmp >= 0   && search == 'applied') )
				{
					a.push( ordered[i] );
				}
			}
		}
	}

	return a;
};


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Rows
 *
 * {}          - no selector - use all available rows
 * {integer}   - row aoData index
 * {node}      - TR node
 * {string}    - jQuery selector to apply to the TR elements
 * {array}     - jQuery array of nodes, or simply an array of TR nodes
 *
 */
var __row_selector = function ( settings, selector, opts )
{
	var rows;
	var run = function ( sel ) {
		var selInt = _intVal( sel );
		var aoData = settings.aoData;

		// Short cut - selector is a number and no options provided (default is
		// all records, so no need to check if the index is in there, since it
		// must be - dev error if the index doesn't exist).
		if ( selInt !== null && ! opts ) {
			return [ selInt ];
		}

		if ( ! rows ) {
			rows = _selector_row_indexes( settings, opts );
		}

		if ( selInt !== null && rows.indexOf(selInt) !== -1 ) {
			// Selector - integer
			return [ selInt ];
		}
		else if ( sel === null || sel === undefined || sel === '' ) {
			// Selector - none
			return rows;
		}

		// Selector - function
		if ( typeof sel === 'function' ) {
			return rows.map( function (idx) {
				var row = aoData[ idx ];
				return sel( idx, row._aData, row.nTr ) ? idx : null;
			} );
		}

		// Selector - node
		if ( sel.nodeName ) {
			var rowIdx = sel._DT_RowIndex;  // Property added by DT for fast lookup
			var cellIdx = sel._DT_CellIndex;

			if ( rowIdx !== undefined ) {
				// Make sure that the row is actually still present in the table
				return aoData[ rowIdx ] && aoData[ rowIdx ].nTr === sel ?
					[ rowIdx ] :
					[];
			}
			else if ( cellIdx ) {
				return aoData[ cellIdx.row ] && aoData[ cellIdx.row ].nTr === sel.parentNode ?
					[ cellIdx.row ] :
					[];
			}
			else {
				var host = $(sel).closest('*[data-dt-row]');
				return host.length ?
					[ host.data('dt-row') ] :
					[];
			}
		}

		// ID selector. Want to always be able to select rows by id, regardless
		// of if the tr element has been created or not, so can't rely upon
		// jQuery here - hence a custom implementation. This does not match
		// Sizzle's fast selector or HTML4 - in HTML5 the ID can be anything,
		// but to select it using a CSS selector engine (like Sizzle or
		// querySelect) it would need to need to be escaped for some characters.
		// DataTables simplifies this for row selectors since you can select
		// only a row. A # indicates an id any anything that follows is the id -
		// unescaped.
		if ( typeof sel === 'string' && sel.charAt(0) === '#' ) {
			// get row index from id
			var rowObj = settings.aIds[ sel.replace( /^#/, '' ) ];
			if ( rowObj !== undefined ) {
				return [ rowObj.idx ];
			}

			// need to fall through to jQuery in case there is DOM id that
			// matches
		}
		
		// Get nodes in the order from the `rows` array with null values removed
		var nodes = _removeEmpty(
			_pluck_order( settings.aoData, rows, 'nTr' )
		);

		// Selector - jQuery selector string, array of nodes or jQuery object/
		// As jQuery's .filter() allows jQuery objects to be passed in filter,
		// it also allows arrays, so this will cope with all three options
		return $(nodes)
			.filter( sel )
			.map( function () {
				return this._DT_RowIndex;
			} )
			.toArray();
	};

	var matched = _selector_run( 'row', selector, run, settings, opts );

	if (opts.order === 'current' || opts.order === 'applied') {
		_fnSortDisplay(settings, matched);
	}

	return matched;
};


_api_register( 'rows()', function ( selector, opts ) {
	// argument shifting
	if ( selector === undefined ) {
		selector = '';
	}
	else if ( $.isPlainObject( selector ) ) {
		opts = selector;
		selector = '';
	}

	opts = _selector_opts( opts );

	var inst = this.iterator( 'table', function ( settings ) {
		return __row_selector( settings, selector, opts );
	}, 1 );

	// Want argument shifting here and in __row_selector?
	inst.selector.rows = selector;
	inst.selector.opts = opts;

	return inst;
} );

_api_register( 'rows().nodes()', function () {
	return this.iterator( 'row', function ( settings, row ) {
		return settings.aoData[ row ].nTr || undefined;
	}, 1 );
} );

_api_register( 'rows().data()', function () {
	return this.iterator( true, 'rows', function ( settings, rows ) {
		return _pluck_order( settings.aoData, rows, '_aData' );
	}, 1 );
} );

_api_registerPlural( 'rows().cache()', 'row().cache()', function ( type ) {
	return this.iterator( 'row', function ( settings, row ) {
		var r = settings.aoData[ row ];
		return type === 'search' ? r._aFilterData : r._aSortData;
	}, 1 );
} );

_api_registerPlural( 'rows().invalidate()', 'row().invalidate()', function ( src ) {
	return this.iterator( 'row', function ( settings, row ) {
		_fnInvalidate( settings, row, src );
	} );
} );

_api_registerPlural( 'rows().indexes()', 'row().index()', function () {
	return this.iterator( 'row', function ( settings, row ) {
		return row;
	}, 1 );
} );

_api_registerPlural( 'rows().ids()', 'row().id()', function ( hash ) {
	var a = [];
	var context = this.context;

	// `iterator` will drop undefined values, but in this case we want them
	for ( var i=0, ien=context.length ; i<ien ; i++ ) {
		for ( var j=0, jen=this[i].length ; j<jen ; j++ ) {
			var id = context[i].rowIdFn( context[i].aoData[ this[i][j] ]._aData );
			a.push( (hash === true ? '#' : '' )+ id );
		}
	}

	return new _Api( context, a );
} );

_api_registerPlural( 'rows().remove()', 'row().remove()', function () {
	this.iterator( 'row', function ( settings, row ) {
		var data = settings.aoData;
		var rowData = data[ row ];

		// Delete from the display arrays
		var idx = settings.aiDisplayMaster.indexOf(row);
		if (idx !== -1) {
			settings.aiDisplayMaster.splice(idx, 1);
		}

		// For server-side processing tables - subtract the deleted row from the count
		if ( settings._iRecordsDisplay > 0 ) {
			settings._iRecordsDisplay--;
		}

		// Check for an 'overflow' they case for displaying the table
		_fnLengthOverflow( settings );

		// Remove the row's ID reference if there is one
		var id = settings.rowIdFn( rowData._aData );
		if ( id !== undefined ) {
			delete settings.aIds[ id ];
		}

		data[row] = null;
	} );

	return this;
} );


_api_register( 'rows.add()', function ( rows ) {
	var newRows = this.iterator( 'table', function ( settings ) {
			var row, i, ien;
			var out = [];

			for ( i=0, ien=rows.length ; i<ien ; i++ ) {
				row = rows[i];

				if ( row.nodeName && row.nodeName.toUpperCase() === 'TR' ) {
					out.push( _fnAddTr( settings, row )[0] );
				}
				else {
					out.push( _fnAddData( settings, row ) );
				}
			}

			return out;
		}, 1 );

	// Return an Api.rows() extended instance, so rows().nodes() etc can be used
	var modRows = this.rows( -1 );
	modRows.pop();
	_fnArrayApply(modRows, newRows);

	return modRows;
} );





/**
 *
 */
_api_register( 'row()', function ( selector, opts ) {
	return _selector_first( this.rows( selector, opts ) );
} );


_api_register( 'row().data()', function ( data ) {
	var ctx = this.context;

	if ( data === undefined ) {
		// Get
		return ctx.length && this.length && this[0].length ?
			ctx[0].aoData[ this[0] ]._aData :
			undefined;
	}

	// Set
	var row = ctx[0].aoData[ this[0] ];
	row._aData = data;

	// If the DOM has an id, and the data source is an array
	if ( Array.isArray( data ) && row.nTr && row.nTr.id ) {
		_fnSetObjectDataFn( ctx[0].rowId )( data, row.nTr.id );
	}

	// Automatically invalidate
	_fnInvalidate( ctx[0], this[0], 'data' );

	return this;
} );


_api_register( 'row().node()', function () {
	var ctx = this.context;

	if (ctx.length && this.length && this[0].length) {
		var row = ctx[0].aoData[ this[0] ];

		if (row && row.nTr) {
			return row.nTr;
		}
	}

	return null;
} );


_api_register( 'row.add()', function ( row ) {
	// Allow a jQuery object to be passed in - only a single row is added from
	// it though - the first element in the set
	if ( row instanceof $ && row.length ) {
		row = row[0];
	}

	var rows = this.iterator( 'table', function ( settings ) {
		if ( row.nodeName && row.nodeName.toUpperCase() === 'TR' ) {
			return _fnAddTr( settings, row )[0];
		}
		return _fnAddData( settings, row );
	} );

	// Return an Api.rows() extended instance, with the newly added row selected
	return this.row( rows[0] );
} );


$(document).on('plugin-init.dt', function (e, context) {
	var api = new _Api( context );

	api.on( 'stateSaveParams.DT', function ( e, settings, d ) {
		// This could be more compact with the API, but it is a lot faster as a simple
		// internal loop
		var idFn = settings.rowIdFn;
		var rows = settings.aiDisplayMaster;
		var ids = [];

		for (var i=0 ; i<rows.length ; i++) {
			var rowIdx = rows[i];
			var data = settings.aoData[rowIdx];

			if (data._detailsShow) {
				ids.push( '#' + idFn(data._aData) );
			}
		}

		d.childRows = ids;
	});

	// For future state loads (e.g. with StateRestore)
	api.on( 'stateLoaded.DT', function (e, settings, state) {
		__details_state_load( api, state );
	});

	// And the initial load state
	__details_state_load( api, api.state.loaded() );
});

var __details_state_load = function (api, state)
{
	if ( state && state.childRows ) {
		api
			.rows( state.childRows.map(function (id) {
				// Escape any `:` characters from the row id. Accounts for
				// already escaped characters.
				return id.replace(/([^:\\]*(?:\\.[^:\\]*)*):/g, "$1\\:");
			}) )
			.every( function () {
				_fnCallbackFire( api.settings()[0], null, 'requestChild', [ this ] )
			});
	}
}

var __details_add = function ( ctx, row, data, klass )
{
	// Convert to array of TR elements
	var rows = [];
	var addRow = function ( r, k ) {
		// Recursion to allow for arrays of jQuery objects
		if ( Array.isArray( r ) || r instanceof $ ) {
			for ( var i=0, ien=r.length ; i<ien ; i++ ) {
				addRow( r[i], k );
			}
			return;
		}

		// If we get a TR element, then just add it directly - up to the dev
		// to add the correct number of columns etc
		if ( r.nodeName && r.nodeName.toLowerCase() === 'tr' ) {
			r.setAttribute( 'data-dt-row', row.idx );
			rows.push( r );
		}
		else {
			// Otherwise create a row with a wrapper
			var created = $('<tr><td></td></tr>')
				.attr( 'data-dt-row', row.idx )
				.addClass( k );
			
			$('td', created)
				.addClass( k )
				.html( r )[0].colSpan = _fnVisbleColumns( ctx );

			rows.push( created[0] );
		}
	};

	addRow( data, klass );

	if ( row._details ) {
		row._details.detach();
	}

	row._details = $(rows);

	// If the children were already shown, that state should be retained
	if ( row._detailsShow ) {
		row._details.insertAfter( row.nTr );
	}
};


// Make state saving of child row details async to allow them to be batch processed
var __details_state = DataTable.util.throttle(
	function (ctx) {
		_fnSaveState( ctx[0] )
	},
	500
);


var __details_remove = function ( api, idx )
{
	var ctx = api.context;

	if ( ctx.length ) {
		var row = ctx[0].aoData[ idx !== undefined ? idx : api[0] ];

		if ( row && row._details ) {
			row._details.remove();

			row._detailsShow = undefined;
			row._details = undefined;
			$( row.nTr ).removeClass( 'dt-hasChild' );
			__details_state( ctx );
		}
	}
};


var __details_display = function ( api, show ) {
	var ctx = api.context;

	if ( ctx.length && api.length ) {
		var row = ctx[0].aoData[ api[0] ];

		if ( row._details ) {
			row._detailsShow = show;

			if ( show ) {
				row._details.insertAfter( row.nTr );
				$( row.nTr ).addClass( 'dt-hasChild' );
			}
			else {
				row._details.detach();
				$( row.nTr ).removeClass( 'dt-hasChild' );
			}

			_fnCallbackFire( ctx[0], null, 'childRow', [ show, api.row( api[0] ) ] )

			__details_events( ctx[0] );
			__details_state( ctx );
		}
	}
};


var __details_events = function ( settings )
{
	var api = new _Api( settings );
	var namespace = '.dt.DT_details';
	var drawEvent = 'draw'+namespace;
	var colvisEvent = 'column-sizing'+namespace;
	var destroyEvent = 'destroy'+namespace;
	var data = settings.aoData;

	api.off( drawEvent +' '+ colvisEvent +' '+ destroyEvent );

	if ( _pluck( data, '_details' ).length > 0 ) {
		// On each draw, insert the required elements into the document
		api.on( drawEvent, function ( e, ctx ) {
			if ( settings !== ctx ) {
				return;
			}

			api.rows( {page:'current'} ).eq(0).each( function (idx) {
				// Internal data grab
				var row = data[ idx ];

				if ( row._detailsShow ) {
					row._details.insertAfter( row.nTr );
				}
			} );
		} );

		// Column visibility change - update the colspan
		api.on( colvisEvent, function ( e, ctx ) {
			if ( settings !== ctx ) {
				return;
			}

			// Update the colspan for the details rows (note, only if it already has
			// a colspan)
			var row, visible = _fnVisbleColumns( ctx );

			for ( var i=0, ien=data.length ; i<ien ; i++ ) {
				row = data[i];

				if ( row && row._details ) {
					row._details.each(function () {
						var el = $(this).children('td');

						if (el.length == 1) {
							el.attr('colspan', visible);
						}
					});
				}
			}
		} );

		// Table destroyed - nuke any child rows
		api.on( destroyEvent, function ( e, ctx ) {
			if ( settings !== ctx ) {
				return;
			}

			for ( var i=0, ien=data.length ; i<ien ; i++ ) {
				if ( data[i] && data[i]._details ) {
					__details_remove( api, i );
				}
			}
		} );
	}
};

// Strings for the method names to help minification
var _emp = '';
var _child_obj = _emp+'row().child';
var _child_mth = _child_obj+'()';

// data can be:
//  tr
//  string
//  jQuery or array of any of the above
_api_register( _child_mth, function ( data, klass ) {
	var ctx = this.context;

	if ( data === undefined ) {
		// get
		return ctx.length && this.length && ctx[0].aoData[ this[0] ]
			? ctx[0].aoData[ this[0] ]._details
			: undefined;
	}
	else if ( data === true ) {
		// show
		this.child.show();
	}
	else if ( data === false ) {
		// remove
		__details_remove( this );
	}
	else if ( ctx.length && this.length ) {
		// set
		__details_add( ctx[0], ctx[0].aoData[ this[0] ], data, klass );
	}

	return this;
} );


_api_register( [
	_child_obj+'.show()',
	_child_mth+'.show()' // only when `child()` was called with parameters (without
], function () {         // it returns an object and this method is not executed)
	__details_display( this, true );
	return this;
} );


_api_register( [
	_child_obj+'.hide()',
	_child_mth+'.hide()' // only when `child()` was called with parameters (without
], function () {         // it returns an object and this method is not executed)
	__details_display( this, false );
	return this;
} );


_api_register( [
	_child_obj+'.remove()',
	_child_mth+'.remove()' // only when `child()` was called with parameters (without
], function () {           // it returns an object and this method is not executed)
	__details_remove( this );
	return this;
} );


_api_register( _child_obj+'.isShown()', function () {
	var ctx = this.context;

	if ( ctx.length && this.length && ctx[0].aoData[ this[0] ] ) {
		// _detailsShown as false or undefined will fall through to return false
		return ctx[0].aoData[ this[0] ]._detailsShow || false;
	}
	return false;
} );



/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Columns
 *
 * {integer}           - column index (>=0 count from left, <0 count from right)
 * "{integer}:visIdx"  - visible column index (i.e. translate to column index)  (>=0 count from left, <0 count from right)
 * "{integer}:visible" - alias for {integer}:visIdx  (>=0 count from left, <0 count from right)
 * "{string}:name"     - column name
 * "{string}"          - jQuery selector on column header nodes
 *
 */

// can be an array of these items, comma separated list, or an array of comma
// separated lists

var __re_column_selector = /^([^:]+)?:(name|title|visIdx|visible)$/;


// r1 and r2 are redundant - but it means that the parameters match for the
// iterator callback in columns().data()
var __columnData = function ( settings, column, r1, r2, rows, type ) {
	var a = [];
	for ( var row=0, ien=rows.length ; row<ien ; row++ ) {
		a.push( _fnGetCellData( settings, rows[row], column, type ) );
	}
	return a;
};


var __column_header = function ( settings, column, row ) {
	var header = settings.aoHeader;
	var titleRow = settings.titleRow;
	var target = null;

	if (row !== undefined) {
		target = row;
	}
	else if (titleRow === true) { // legacy orderCellsTop support
		target = 0;
	}
	else if (titleRow === false) {
		target = header.length - 1;
	}
	else if (titleRow !== null) {
		target = titleRow;
	}
	else {
		// Automatic - find the _last_ unique cell from the top that is not empty (last for
		// backwards compatibility)
		for (var i=0 ; i<header.length ; i++) {
			if (header[i][column].unique && $('span.dt-column-title', header[i][column].cell).text()) {
				target = i;
			}
		}

		if (target === null) {
			target = 0;
		}
	}

	return header[target][column].cell;
};

var __column_header_cells = function (header) {
	var out = [];

	for (var i=0 ; i<header.length ; i++) {
		for (var j=0 ; j<header[i].length ; j++) {
			var cell = header[i][j].cell;

			if (!out.includes(cell)) {
				out.push(cell);
			}
		}
	}

	return out;
}

var __column_selector = function ( settings, selector, opts )
{
	var
		columns = settings.aoColumns,
		names, titles,
		nodes = __column_header_cells(settings.aoHeader);
	
	var run = function ( s ) {
		var selInt = _intVal( s );

		// Selector - all
		if ( s === '' ) {
			return _range( columns.length );
		}

		// Selector - index
		if ( selInt !== null ) {
			return [ selInt >= 0 ?
				selInt : // Count from left
				columns.length + selInt // Count from right (+ because its a negative value)
			];
		}

		// Selector = function
		if ( typeof s === 'function' ) {
			var rows = _selector_row_indexes( settings, opts );

			return columns.map(function (col, idx) {
				return s(
						idx,
						__columnData( settings, idx, 0, 0, rows ),
						__column_header( settings, idx )
					) ? idx : null;
			});
		}

		// jQuery or string selector
		var match = typeof s === 'string' ?
			s.match( __re_column_selector ) :
			'';

		if ( match ) {
			switch( match[2] ) {
				case 'visIdx':
				case 'visible':
					// Selector is a column index
					if (match[1] && match[1].match(/^\d+$/)) {
						var idx = parseInt( match[1], 10 );

						// Visible index given, convert to column index
						if ( idx < 0 ) {
							// Counting from the right
							var visColumns = columns.map( function (col,i) {
								return col.bVisible ? i : null;
							} );
							return [ visColumns[ visColumns.length + idx ] ];
						}
						// Counting from the left
						return [ _fnVisibleToColumnIndex( settings, idx ) ];
					}
					
					return columns.map( function (col, idx) {
						// Not visible, can't match
						if (! col.bVisible) {
							return null;
						}

						// Selector
						if (match[1]) {
							return $(nodes[idx]).filter(match[1]).length > 0 ? idx : null;
						}

						// `:visible` on its own
						return idx;
					} );

				case 'name':
					// Don't get names, unless needed, and only get once if it is
					if (!names) {
						names = _pluck( columns, 'sName' );
					}

					// match by name. `names` is column index complete and in order
					return names.map( function (name, i) {
						return name === match[1] ? i : null;
					} );

				case 'title':
					if (!titles) {
						titles = _pluck( columns, 'sTitle' );
					}

					// match by column title
					return titles.map( function (title, i) {
						return title === match[1] ? i : null;
					} );

				default:
					return [];
			}
		}

		// Cell in the table body
		if ( s.nodeName && s._DT_CellIndex ) {
			return [ s._DT_CellIndex.column ];
		}

		// jQuery selector on the TH elements for the columns
		var jqResult = $( nodes )
			.filter( s )
			.map( function () {
				return _fnColumnsFromHeader( this ); // `nodes` is column index complete and in order
			} )
			.toArray()
			.sort(function (a, b) {
				return a - b;
			});

		if ( jqResult.length || ! s.nodeName ) {
			return jqResult;
		}

		// Otherwise a node which might have a `dt-column` data attribute, or be
		// a child or such an element
		var host = $(s).closest('*[data-dt-column]');
		return host.length ?
			[ host.data('dt-column') ] :
			[];
	};

	var selected = _selector_run( 'column', selector, run, settings, opts );

	return opts.columnOrder && opts.columnOrder === 'index'
		? selected.sort(function (a, b) { return a - b; })
		: selected; // implied
};


var __setColumnVis = function ( settings, column, vis ) {
	var
		cols = settings.aoColumns,
		col  = cols[ column ],
		data = settings.aoData,
		cells, i, ien, tr;

	// Get
	if ( vis === undefined ) {
		return col.bVisible;
	}

	// Set
	// No change
	if ( col.bVisible === vis ) {
		return false;
	}

	if ( vis ) {
		// Insert column
		// Need to decide if we should use appendChild or insertBefore
		var insertBefore = _pluck(cols, 'bVisible').indexOf(true, column+1);

		for ( i=0, ien=data.length ; i<ien ; i++ ) {
			if (data[i]) {
				tr = data[i].nTr;
				cells = data[i].anCells;

				if ( tr ) {
					// insertBefore can act like appendChild if 2nd arg is null
					tr.insertBefore( cells[ column ], cells[ insertBefore ] || null );
				}
			}
		}
	}
	else {
		// Remove column
		$( _pluck( settings.aoData, 'anCells', column ) ).detach();
	}

	// Common actions
	col.bVisible = vis;

	_colGroup(settings);
	
	return true;
};


_api_register( 'columns()', function ( selector, opts ) {
	// argument shifting
	if ( selector === undefined ) {
		selector = '';
	}
	else if ( $.isPlainObject( selector ) ) {
		opts = selector;
		selector = '';
	}

	opts = _selector_opts( opts );

	var inst = this.iterator( 'table', function ( settings ) {
		return __column_selector( settings, selector, opts );
	}, 1 );

	// Want argument shifting here and in _row_selector?
	inst.selector.cols = selector;
	inst.selector.opts = opts;

	return inst;
} );

_api_registerPlural( 'columns().header()', 'column().header()', function ( row ) {
	return this.iterator( 'column', function (settings, column) {
		return __column_header(settings, column, row);
	}, 1 );
} );

_api_registerPlural( 'columns().footer()', 'column().footer()', function ( row ) {
	return this.iterator( 'column', function ( settings, column ) {
		var footer = settings.aoFooter;

		if (! footer.length) {
			return null;
		}

		return settings.aoFooter[row !== undefined ? row : 0][column].cell;
	}, 1 );
} );

_api_registerPlural( 'columns().data()', 'column().data()', function () {
	return this.iterator( 'column-rows', __columnData, 1 );
} );

_api_registerPlural( 'columns().render()', 'column().render()', function ( type ) {
	return this.iterator( 'column-rows', function ( settings, column, i, j, rows ) {
		return __columnData( settings, column, i, j, rows, type );
	}, 1 );
} );

_api_registerPlural( 'columns().dataSrc()', 'column().dataSrc()', function () {
	return this.iterator( 'column', function ( settings, column ) {
		return settings.aoColumns[column].mData;
	}, 1 );
} );

_api_registerPlural( 'columns().cache()', 'column().cache()', function ( type ) {
	return this.iterator( 'column-rows', function ( settings, column, i, j, rows ) {
		return _pluck_order( settings.aoData, rows,
			type === 'search' ? '_aFilterData' : '_aSortData', column
		);
	}, 1 );
} );

_api_registerPlural( 'columns().init()', 'column().init()', function () {
	return this.iterator( 'column', function ( settings, column ) {
		return settings.aoColumns[column];
	}, 1 );
} );

_api_registerPlural( 'columns().names()', 'column().name()', function () {
	return this.iterator( 'column', function ( settings, column ) {
		return settings.aoColumns[column].sName;
	}, 1 );
} );

_api_registerPlural( 'columns().nodes()', 'column().nodes()', function () {
	return this.iterator( 'column-rows', function ( settings, column, i, j, rows ) {
		return _pluck_order( settings.aoData, rows, 'anCells', column ) ;
	}, 1 );
} );

_api_registerPlural( 'columns().titles()', 'column().title()', function (title, row) {
	return this.iterator( 'column', function ( settings, column ) {
		// Argument shifting
		if (typeof title === 'number') {
			row = title;
			title = undefined;
		}

		var span = $('span.dt-column-title', this.column(column).header(row));

		if (title !== undefined) {
			span.html(title);
			return this;
		}

		return span.html();
	}, 1 );
} );

_api_registerPlural( 'columns().types()', 'column().type()', function () {
	return this.iterator( 'column', function ( settings, column ) {
		var type = settings.aoColumns[column].sType;

		// If the type was invalidated, then resolve it. This actually does
		// all columns at the moment. Would only happen once if getting all
		// column's data types.
		if (! type) {
			_fnColumnTypes(settings);
		}

		return type;
	}, 1 );
} );

_api_registerPlural( 'columns().visible()', 'column().visible()', function ( vis, calc ) {
	var that = this;
	var changed = [];
	var ret = this.iterator( 'column', function ( settings, column ) {
		if ( vis === undefined ) {
			return settings.aoColumns[ column ].bVisible;
		} // else
		
		if (__setColumnVis( settings, column, vis )) {
			changed.push(column);
		}
	} );

	// Group the column visibility changes
	if ( vis !== undefined ) {
		this.iterator( 'table', function ( settings ) {
			// Redraw the header after changes
			_fnDrawHead( settings, settings.aoHeader );
			_fnDrawHead( settings, settings.aoFooter );
	
			// Update colspan for no records display. Child rows and extensions will use their own
			// listeners to do this - only need to update the empty table item here
			if ( ! settings.aiDisplay.length ) {
				$(settings.nTBody).find('td[colspan]').attr('colspan', _fnVisbleColumns(settings));
			}
	
			_fnSaveState( settings );

			// Second loop once the first is done for events
			that.iterator( 'column', function ( settings, column ) {
				if (changed.includes(column)) {
					_fnCallbackFire( settings, null, 'column-visibility', [settings, column, vis, calc] );
				}
			} );

			if ( changed.length && (calc === undefined || calc) ) {
				that.columns.adjust();
			}
		});
	}

	return ret;
} );

_api_registerPlural( 'columns().widths()', 'column().width()', function () {
	// Injects a fake row into the table for just a moment so the widths can
	// be read, regardless of colspan in the header and rows being present in
	// the body
	var columns = this.columns(':visible').count();
	var row = $('<tr>').html('<td>' + Array(columns).join('</td><td>') + '</td>');

	$(this.table().body()).append(row);

	var widths = row.children().map(function () {
		return $(this).outerWidth();
	});

	row.remove();
	
	return this.iterator( 'column', function ( settings, column ) {
		var visIdx = _fnColumnIndexToVisible( settings, column );

		return visIdx !== null ? widths[visIdx] : 0;
	}, 1);
} );

_api_registerPlural( 'columns().indexes()', 'column().index()', function ( type ) {
	return this.iterator( 'column', function ( settings, column ) {
		return type === 'visible' ?
			_fnColumnIndexToVisible( settings, column ) :
			column;
	}, 1 );
} );

_api_register( 'columns.adjust()', function () {
	return this.iterator( 'table', function ( settings ) {
		// Force a column sizing to happen with a manual call - otherwise it can skip
		// if the size hasn't changed
		settings.containerWidth = -1;

		_fnAdjustColumnSizing( settings );
	}, 1 );
} );

_api_register( 'column.index()', function ( type, idx ) {
	if ( this.context.length !== 0 ) {
		var ctx = this.context[0];

		if ( type === 'fromVisible' || type === 'toData' ) {
			return _fnVisibleToColumnIndex( ctx, idx );
		}
		else if ( type === 'fromData' || type === 'toVisible' ) {
			return _fnColumnIndexToVisible( ctx, idx );
		}
	}
} );

_api_register( 'column()', function ( selector, opts ) {
	return _selector_first( this.columns( selector, opts ) );
} );

var __cell_selector = function ( settings, selector, opts )
{
	var data = settings.aoData;
	var rows = _selector_row_indexes( settings, opts );
	var cells = _removeEmpty( _pluck_order( data, rows, 'anCells' ) );
	var allCells = $(_flatten( [], cells ));
	var row;
	var columns = settings.aoColumns.length;
	var a, i, ien, j, o, host;

	var run = function ( s ) {
		var fnSelector = typeof s === 'function';

		if ( s === null || s === undefined || fnSelector ) {
			// All cells and function selectors
			a = [];

			for ( i=0, ien=rows.length ; i<ien ; i++ ) {
				row = rows[i];

				for ( j=0 ; j<columns ; j++ ) {
					o = {
						row: row,
						column: j
					};

					if ( fnSelector ) {
						// Selector - function
						host = data[ row ];

						if ( s( o, _fnGetCellData(settings, row, j), host.anCells ? host.anCells[j] : null ) ) {
							a.push( o );
						}
					}
					else {
						// Selector - all
						a.push( o );
					}
				}
			}

			return a;
		}
		
		// Selector - index
		if ( $.isPlainObject( s ) ) {
			// Valid cell index and its in the array of selectable rows
			return s.column !== undefined && s.row !== undefined && rows.indexOf(s.row) !== -1 ?
				[s] :
				[];
		}

		// Selector - jQuery filtered cells
		var jqResult = allCells
			.filter( s )
			.map( function (i, el) {
				return { // use a new object, in case someone changes the values
					row:    el._DT_CellIndex.row,
					column: el._DT_CellIndex.column
				};
			} )
			.toArray();

		if ( jqResult.length || ! s.nodeName ) {
			return jqResult;
		}

		// Otherwise the selector is a node, and there is one last option - the
		// element might be a child of an element which has dt-row and dt-column
		// data attributes
		host = $(s).closest('*[data-dt-row]');
		return host.length ?
			[ {
				row: host.data('dt-row'),
				column: host.data('dt-column')
			} ] :
			[];
	};

	return _selector_run( 'cell', selector, run, settings, opts );
};




_api_register( 'cells()', function ( rowSelector, columnSelector, opts ) {
	// Argument shifting
	if ( $.isPlainObject( rowSelector ) ) {
		// Indexes
		if ( rowSelector.row === undefined ) {
			// Selector options in first parameter
			opts = rowSelector;
			rowSelector = null;
		}
		else {
			// Cell index objects in first parameter
			opts = columnSelector;
			columnSelector = null;
		}
	}
	if ( $.isPlainObject( columnSelector ) ) {
		opts = columnSelector;
		columnSelector = null;
	}

	// Cell selector
	if ( columnSelector === null || columnSelector === undefined ) {
		return this.iterator( 'table', function ( settings ) {
			return __cell_selector( settings, rowSelector, _selector_opts( opts ) );
		} );
	}

	// The default built in options need to apply to row and columns
	var internalOpts = opts ? {
		page: opts.page,
		order: opts.order,
		search: opts.search
	} : {};

	// Row + column selector
	var columns = this.columns( columnSelector, internalOpts );
	var rows = this.rows( rowSelector, internalOpts );
	var i, ien, j, jen;

	var cellsNoOpts = this.iterator( 'table', function ( settings, idx ) {
		var a = [];

		for ( i=0, ien=rows[idx].length ; i<ien ; i++ ) {
			for ( j=0, jen=columns[idx].length ; j<jen ; j++ ) {
				a.push( {
					row:    rows[idx][i],
					column: columns[idx][j]
				} );
			}
		}

		return a;
	}, 1 );

	// There is currently only one extension which uses a cell selector extension
	// It is a _major_ performance drag to run this if it isn't needed, so this is
	// an extension specific check at the moment
	var cells = opts && opts.selected ?
		this.cells( cellsNoOpts, opts ) :
		cellsNoOpts;

	$.extend( cells.selector, {
		cols: columnSelector,
		rows: rowSelector,
		opts: opts
	} );

	return cells;
} );


_api_registerPlural( 'cells().nodes()', 'cell().node()', function () {
	return this.iterator( 'cell', function ( settings, row, column ) {
		var data = settings.aoData[ row ];

		return data && data.anCells ?
			data.anCells[ column ] :
			undefined;
	}, 1 );
} );


_api_register( 'cells().data()', function () {
	return this.iterator( 'cell', function ( settings, row, column ) {
		return _fnGetCellData( settings, row, column );
	}, 1 );
} );


_api_registerPlural( 'cells().cache()', 'cell().cache()', function ( type ) {
	type = type === 'search' ? '_aFilterData' : '_aSortData';

	return this.iterator( 'cell', function ( settings, row, column ) {
		return settings.aoData[ row ][ type ][ column ];
	}, 1 );
} );


_api_registerPlural( 'cells().render()', 'cell().render()', function ( type ) {
	return this.iterator( 'cell', function ( settings, row, column ) {
		return _fnGetCellData( settings, row, column, type );
	}, 1 );
} );


_api_registerPlural( 'cells().indexes()', 'cell().index()', function () {
	return this.iterator( 'cell', function ( settings, row, column ) {
		return {
			row: row,
			column: column,
			columnVisible: _fnColumnIndexToVisible( settings, column )
		};
	}, 1 );
} );


_api_registerPlural( 'cells().invalidate()', 'cell().invalidate()', function ( src ) {
	return this.iterator( 'cell', function ( settings, row, column ) {
		_fnInvalidate( settings, row, src, column );
	} );
} );



_api_register( 'cell()', function ( rowSelector, columnSelector, opts ) {
	return _selector_first( this.cells( rowSelector, columnSelector, opts ) );
} );


_api_register( 'cell().data()', function ( data ) {
	var ctx = this.context;
	var cell = this[0];

	if ( data === undefined ) {
		// Get
		return ctx.length && cell.length ?
			_fnGetCellData( ctx[0], cell[0].row, cell[0].column ) :
			undefined;
	}

	// Set
	_fnSetCellData( ctx[0], cell[0].row, cell[0].column, data );
	_fnInvalidate( ctx[0], cell[0].row, 'data', cell[0].column );

	return this;
} );



/**
 * Get current ordering (sorting) that has been applied to the table.
 *
 * @returns {array} 2D array containing the sorting information for the first
 *   table in the current context. Each element in the parent array represents
 *   a column being sorted upon (i.e. multi-sorting with two columns would have
 *   2 inner arrays). The inner arrays may have 2 or 3 elements. The first is
 *   the column index that the sorting condition applies to, the second is the
 *   direction of the sort (`desc` or `asc`) and, optionally, the third is the
 *   index of the sorting order from the `column.sorting` initialisation array.
 *//**
 * Set the ordering for the table.
 *
 * @param {integer} order Column index to sort upon.
 * @param {string} direction Direction of the sort to be applied (`asc` or `desc`)
 * @returns {DataTables.Api} this
 *//**
 * Set the ordering for the table.
 *
 * @param {array} order 1D array of sorting information to be applied.
 * @param {array} [...] Optional additional sorting conditions
 * @returns {DataTables.Api} this
 *//**
 * Set the ordering for the table.
 *
 * @param {array} order 2D array of sorting information to be applied.
 * @returns {DataTables.Api} this
 */
_api_register( 'order()', function ( order, dir ) {
	var ctx = this.context;
	var args = Array.prototype.slice.call( arguments );

	if ( order === undefined ) {
		// get
		return ctx.length !== 0 ?
			ctx[0].aaSorting :
			undefined;
	}

	// set
	if ( typeof order === 'number' ) {
		// Simple column / direction passed in
		order = [ [ order, dir ] ];
	}
	else if ( args.length > 1 ) {
		// Arguments passed in (list of 1D arrays)
		order = args;
	}
	// otherwise a 2D array was passed in

	return this.iterator( 'table', function ( settings ) {
		var resolved = [];
		_fnSortResolve(settings, resolved, order);

		settings.aaSorting = resolved;
	} );
} );


/**
 * Attach a sort listener to an element for a given column
 *
 * @param {node|jQuery|string} node Identifier for the element(s) to attach the
 *   listener to. This can take the form of a single DOM node, a jQuery
 *   collection of nodes or a jQuery selector which will identify the node(s).
 * @param {integer} column the column that a click on this node will sort on
 * @param {function} [callback] callback function when sort is run
 * @returns {DataTables.Api} this
 */
_api_register( 'order.listener()', function ( node, column, callback ) {
	return this.iterator( 'table', function ( settings ) {
		_fnSortAttachListener(settings, node, {}, column, callback);
	} );
} );


_api_register( 'order.fixed()', function ( set ) {
	if ( ! set ) {
		var ctx = this.context;
		var fixed = ctx.length ?
			ctx[0].aaSortingFixed :
			undefined;

		return Array.isArray( fixed ) ?
			{ pre: fixed } :
			fixed;
	}

	return this.iterator( 'table', function ( settings ) {
		settings.aaSortingFixed = $.extend( true, {}, set );
	} );
} );


// Order by the selected column(s)
_api_register( [
	'columns().order()',
	'column().order()'
], function ( dir ) {
	var that = this;

	if ( ! dir ) {
		return this.iterator( 'column', function ( settings, idx ) {
			var sort = _fnSortFlatten( settings );

			for ( var i=0, ien=sort.length ; i<ien ; i++ ) {
				if ( sort[i].col === idx ) {
					return sort[i].dir;
				}
			}

			return null;
		}, 1 );
	}
	else {
		return this.iterator( 'table', function ( settings, i ) {
			settings.aaSorting = that[i].map( function (col) {
				return [ col, dir ];
			} );
		} );
	}
} );

_api_registerPlural('columns().orderable()', 'column().orderable()', function ( directions ) {
	return this.iterator( 'column', function ( settings, idx ) {
		var col = settings.aoColumns[idx];

		return directions ?
			col.asSorting :
			col.bSortable;
	}, 1 );
} );


_api_register( 'processing()', function ( show ) {
	return this.iterator( 'table', function ( ctx ) {
		_fnProcessingDisplay( ctx, show );
	} );
} );


_api_register( 'search()', function ( input, regex, smart, caseInsen ) {
	var ctx = this.context;

	if ( input === undefined ) {
		// get
		return ctx.length !== 0 ?
			ctx[0].oPreviousSearch.search :
			undefined;
	}

	// set
	return this.iterator( 'table', function ( settings ) {
		if ( ! settings.oFeatures.bFilter ) {
			return;
		}

		if (typeof regex === 'object') {
			// New style options to pass to the search builder
			_fnFilterComplete( settings, $.extend( settings.oPreviousSearch, regex, {
				search: input
			} ) );
		}
		else {
			// Compat for the old options
			_fnFilterComplete( settings, $.extend( settings.oPreviousSearch, {
				search: input,
				regex:  regex === null ? false : regex,
				smart:  smart === null ? true  : smart,
				caseInsensitive: caseInsen === null ? true : caseInsen
			} ) );
		}
	} );
} );

_api_register( 'search.fixed()', function ( name, search ) {
	var ret = this.iterator( true, 'table', function ( settings ) {
		var fixed = settings.searchFixed;

		if (! name) {
			return Object.keys(fixed);
		}
		else if (search === undefined) {
			return fixed[name];
		}
		else if (search === null) {
			delete fixed[name];
		}
		else {
			fixed[name] = search;
		}

		return this;
	} );

	return name !== undefined && search === undefined
		? ret[0]
		: ret;
} );

_api_registerPlural(
	'columns().search()',
	'column().search()',
	function ( input, regex, smart, caseInsen ) {
		return this.iterator( 'column', function ( settings, column ) {
			var preSearch = settings.aoPreSearchCols;

			if ( input === undefined ) {
				// get
				return preSearch[ column ].search;
			}

			// set
			if ( ! settings.oFeatures.bFilter ) {
				return;
			}

			if (typeof regex === 'object') {
				// New style options to pass to the search builder
				$.extend( preSearch[ column ], regex, {
					search: input
				} );
			}
			else {
				// Old style (with not all options available)
				$.extend( preSearch[ column ], {
					search: input,
					regex:  regex === null ? false : regex,
					smart:  smart === null ? true  : smart,
					caseInsensitive: caseInsen === null ? true : caseInsen
				} );
			}

			_fnFilterComplete( settings, settings.oPreviousSearch );
		} );
	}
);

_api_register([
		'columns().search.fixed()',
		'column().search.fixed()'
	],
	function ( name, search ) {
		var ret = this.iterator( true, 'column', function ( settings, colIdx ) {
			var fixed = settings.aoColumns[colIdx].searchFixed;

			if (! name) {
				return Object.keys(fixed);
			}
			else if (search === undefined) {
				return fixed[name] || null;
			}
			else if (search === null) {
				delete fixed[name];
			}
			else {
				fixed[name] = search;
			}

			return this;
		} );

		return name !== undefined && search === undefined
			? ret[0]
			: ret;
	}
);
/*
 * State API methods
 */

_api_register( 'state()', function ( set, ignoreTime ) {
	// getter
	if ( ! set ) {
		return this.context.length ?
			this.context[0].oSavedState :
			null;
	}

	var setMutate = $.extend( true, {}, set );

	// setter
	return this.iterator( 'table', function ( settings ) {
		if ( ignoreTime !== false ) {
			setMutate.time = +new Date() + 100;
		}

		_fnImplementState( settings, setMutate, function(){} );
	} );
} );


_api_register( 'state.clear()', function () {
	return this.iterator( 'table', function ( settings ) {
		// Save an empty object
		settings.fnStateSaveCallback.call( settings.oInstance, settings, {} );
	} );
} );


_api_register( 'state.loaded()', function () {
	return this.context.length ?
		this.context[0].oLoadedState :
		null;
} );


_api_register( 'state.save()', function () {
	return this.iterator( 'table', function ( settings ) {
		_fnSaveState( settings );
	} );
} );

// Can be assigned in DateTable.use() - note luxon and moment vars are in helpers.js
var __bootstrap;
var __foundation;

/**
 * Set the libraries that DataTables uses, or the global objects.
 * Note that the arguments can be either way around (legacy support)
 * and the second is optional. See docs.
 */
DataTable.use = function (arg1, arg2) {
	// Reverse arguments for legacy support
	var module = typeof arg1 === 'string'
		? arg2
		: arg1;
	var type = typeof arg2 === 'string'
		? arg2
		: arg1;

	// Getter
	if (module === undefined && typeof type === 'string') {
		switch (type) {
			case 'lib':
			case 'jq':
				return $;

			case 'win':
				return window;

			case 'datetime':
				return DataTable.DateTime;

			case 'luxon':
				return __luxon;

			case 'moment':
				return __moment;

			case 'bootstrap':
				// Use local if set, otherwise try window, which could be undefined
				return __bootstrap || window.bootstrap;

			case 'foundation':
				// Ditto
				return __foundation || window.Foundation;

			default:
				return null;
		}
	}

	// Setter
	if (type === 'lib' || type === 'jq' || (module && module.fn && module.fn.jquery)) {
		$ = module;
	}
	else if (type === 'win' || (module && module.document)) {
		window = module;
		document = module.document;
	}
	else if (type === 'datetime' || (module && module.type === 'DateTime')) {
		DataTable.DateTime = module;
	}
	else if (type === 'luxon' || (module && module.FixedOffsetZone)) {
		__luxon = module;
	}
	else if (type === 'moment' || (module && module.isMoment)) {
		__moment = module;
	}
	else if (type === 'bootstrap' || (module && module.Modal && module.Modal.NAME === 'modal'))
	{
		// This is currently for BS5 only. BS3/4 attach to jQuery, so no need to use `.use()`
		__bootstrap = module;
	}
	else if (type === 'foundation' || (module && module.Reveal)) {
		__foundation = module;
	}
}

/**
 * CommonJS factory function pass through. This will check if the arguments
 * given are a window object or a jQuery object. If so they are set
 * accordingly.
 * @param {*} root Window
 * @param {*} jq jQUery
 * @returns {boolean} Indicator
 */
DataTable.factory = function (root, jq) {
	var is = false;

	// Test if the first parameter is a window object
	if (root && root.document) {
		window = root;
		document = root.document;
	}

	// Test if the second parameter is a jQuery object
	if (jq && jq.fn && jq.fn.jquery) {
		$ = jq;
		is = true;
	}

	return is;
}

/**
 * Provide a common method for plug-ins to check the version of DataTables being
 * used, in order to ensure compatibility.
 *
 *  @param {string} version Version string to check for, in the format "X.Y.Z".
 *    Note that the formats "X" and "X.Y" are also acceptable.
 *  @param {string} [version2=current DataTables version] As above, but optional.
 *   If not given the current DataTables version will be used.
 *  @returns {boolean} true if this version of DataTables is greater or equal to
 *    the required version, or false if this version of DataTales is not
 *    suitable
 *  @static
 *  @dtopt API-Static
 *
 *  @example
 *    alert( $.fn.dataTable.versionCheck( '1.9.0' ) );
 */
DataTable.versionCheck = function( version, version2 )
{
	var aThis = version2 ?
		version2.split('.') :
		DataTable.version.split('.');
	var aThat = version.split('.');
	var iThis, iThat;

	for ( var i=0, iLen=aThat.length ; i<iLen ; i++ ) {
		iThis = parseInt( aThis[i], 10 ) || 0;
		iThat = parseInt( aThat[i], 10 ) || 0;

		// Parts are the same, keep comparing
		if (iThis === iThat) {
			continue;
		}

		// Parts are different, return immediately
		return iThis > iThat;
	}

	return true;
};


/**
 * Check if a `<table>` node is a DataTable table already or not.
 *
 *  @param {node|jquery|string} table Table node, jQuery object or jQuery
 *      selector for the table to test. Note that if more than more than one
 *      table is passed on, only the first will be checked
 *  @returns {boolean} true the table given is a DataTable, or false otherwise
 *  @static
 *  @dtopt API-Static
 *
 *  @example
 *    if ( ! $.fn.DataTable.isDataTable( '#example' ) ) {
 *      $('#example').dataTable();
 *    }
 */
DataTable.isDataTable = function ( table )
{
	var t = $(table).get(0);
	var is = false;

	if ( table instanceof DataTable.Api ) {
		return true;
	}

	$.each( DataTable.settings, function (i, o) {
		var head = o.nScrollHead ? $('table', o.nScrollHead)[0] : null;
		var foot = o.nScrollFoot ? $('table', o.nScrollFoot)[0] : null;

		if ( o.nTable === t || head === t || foot === t ) {
			is = true;
		}
	} );

	return is;
};


/**
 * Get all DataTable tables that have been initialised - optionally you can
 * select to get only currently visible tables.
 *
 *  @param {boolean} [visible=false] Flag to indicate if you want all (default)
 *    or visible tables only.
 *  @returns {array} Array of `table` nodes (not DataTable instances) which are
 *    DataTables
 *  @static
 *  @dtopt API-Static
 *
 *  @example
 *    $.each( $.fn.dataTable.tables(true), function () {
 *      $(table).DataTable().columns.adjust();
 *    } );
 */
DataTable.tables = function ( visible )
{
	var api = false;

	if ( $.isPlainObject( visible ) ) {
		api = visible.api;
		visible = visible.visible;
	}

	var a = DataTable.settings
		.filter( function (o) {
			return !visible || (visible && $(o.nTable).is(':visible')) 
				? true
				: false;
		} )
		.map( function (o) {
			return o.nTable;
		});

	return api ?
		new _Api( a ) :
		a;
};


/**
 * Convert from camel case parameters to Hungarian notation. This is made public
 * for the extensions to provide the same ability as DataTables core to accept
 * either the 1.9 style Hungarian notation, or the 1.10+ style camelCase
 * parameters.
 *
 *  @param {object} src The model object which holds all parameters that can be
 *    mapped.
 *  @param {object} user The object to convert from camel case to Hungarian.
 *  @param {boolean} force When set to `true`, properties which already have a
 *    Hungarian value in the `user` object will be overwritten. Otherwise they
 *    won't be.
 */
DataTable.camelToHungarian = _fnCamelToHungarian;



/**
 *
 */
_api_register( '$()', function ( selector, opts ) {
	var
		rows   = this.rows( opts ).nodes(), // Get all rows
		jqRows = $(rows);

	return $( [].concat(
		jqRows.filter( selector ).toArray(),
		jqRows.find( selector ).toArray()
	) );
} );


// jQuery functions to operate on the tables
$.each( [ 'on', 'one', 'off' ], function (i, key) {
	_api_register( key+'()', function ( /* event, handler */ ) {
		var args = Array.prototype.slice.call(arguments);

		// Add the `dt` namespace automatically if it isn't already present
		args[0] = args[0].split( /\s/ ).map( function ( e ) {
			return ! e.match(/\.dt\b/) ?
				e+'.dt' :
				e;
			} ).join( ' ' );

		var inst = $( this.tables().nodes() );
		inst[key].apply( inst, args );
		return this;
	} );
} );


_api_register( 'clear()', function () {
	return this.iterator( 'table', function ( settings ) {
		_fnClearTable( settings );
	} );
} );


_api_register( 'error()', function (msg) {
	return this.iterator( 'table', function ( settings ) {
		_fnLog( settings, 0, msg );
	} );
} );


_api_register( 'settings()', function () {
	return new _Api( this.context, this.context );
} );


_api_register( 'init()', function () {
	var ctx = this.context;
	return ctx.length ? ctx[0].oInit : null;
} );


_api_register( 'data()', function () {
	return this.iterator( 'table', function ( settings ) {
		return _pluck( settings.aoData, '_aData' );
	} ).flatten();
} );


_api_register( 'trigger()', function ( name, args, bubbles ) {
	return this.iterator( 'table', function ( settings ) {
		return _fnCallbackFire( settings, null, name, args, bubbles );
	} ).flatten();
} );


_api_register( 'ready()', function ( fn ) {
	var ctx = this.context;

	// Get status of first table
	if (! fn) {
		return ctx.length
			? (ctx[0]._bInitComplete || false)
			: null;
	}

	// Function to run either once the table becomes ready or
	// immediately if it is already ready.
	return this.tables().every(function () {
		var api = this;

		if (this.context[0]._bInitComplete) {
			fn.call(api);
		}
		else {
			this.on('init.dt.DT', function () {
				fn.call(api);
			});
		}
	} );
} );


_api_register( 'destroy()', function ( remove ) {
	remove = remove || false;

	return this.iterator( 'table', function ( settings ) {
		var classes   = settings.oClasses;
		var table     = settings.nTable;
		var tbody     = settings.nTBody;
		var thead     = settings.nTHead;
		var tfoot     = settings.nTFoot;
		var jqTable   = $(table);
		var jqTbody   = $(tbody);
		var jqWrapper = $(settings.nTableWrapper);
		var rows      = settings.aoData.map( function (r) { return r ? r.nTr : null; } );
		var orderClasses = classes.order;

		// Flag to note that the table is currently being destroyed - no action
		// should be taken
		settings.bDestroying = true;

		// Fire off the destroy callbacks for plug-ins etc
		_fnCallbackFire( settings, "aoDestroyCallback", "destroy", [settings], true );

		// If not being removed from the document, make all columns visible
		if ( ! remove ) {
			new _Api( settings ).columns().visible( true );
		}

		// Container width change listener
		if (settings.resizeObserver) {
			settings.resizeObserver.disconnect();
		}

		// Blitz all `DT` namespaced events (these are internal events, the
		// lowercase, `dt` events are user subscribed and they are responsible
		// for removing them
		jqWrapper.off('.DT').find(':not(tbody *)').off('.DT');
		$(window).off('.DT-'+settings.sInstance);

		// When scrolling we had to break the table up - restore it
		if ( table != thead.parentNode ) {
			jqTable.children('thead').detach();
			jqTable.append( thead );
		}

		if ( tfoot && table != tfoot.parentNode ) {
			jqTable.children('tfoot').detach();
			jqTable.append( tfoot );
		}

		// Clean up the header / footer
		cleanHeader(thead, 'header');
		cleanHeader(tfoot, 'footer');
		settings.colgroup.remove();

		settings.aaSorting = [];
		settings.aaSortingFixed = [];
		_fnSortingClasses( settings );

		$(jqTable).find('th, td').removeClass(
			$.map(DataTable.ext.type.className, function (v) {
				return v;
			}).join(' ')
		);

		$('th, td', thead)
			.removeClass(
				orderClasses.none + ' ' +
				orderClasses.canAsc + ' ' +
				orderClasses.canDesc + ' ' +
				orderClasses.isAsc + ' ' +
				orderClasses.isDesc
			)
			.css('width', '')
			.removeAttr('aria-sort');

		// Add the TR elements back into the table in their original order
		jqTbody.children().detach();
		jqTbody.append( rows );

		var orig = settings.nTableWrapper.parentNode;
		var insertBefore = settings.nTableWrapper.nextSibling;

		// Remove the DataTables generated nodes, events and classes
		var removedMethod = remove ? 'remove' : 'detach';
		jqTable[ removedMethod ]();
		jqWrapper[ removedMethod ]();

		// If we need to reattach the table to the document
		if ( ! remove && orig ) {
			// insertBefore acts like appendChild if !arg[1]
			orig.insertBefore( table, insertBefore );

			// Restore the width of the original table - was read from the style property,
			// so we can restore directly to that
			jqTable
				.css( 'width', settings.sDestroyWidth )
				.removeClass( classes.table );
		}

		/* Remove the settings object from the settings array */
		var idx = DataTable.settings.indexOf(settings);
		if ( idx !== -1 ) {
			DataTable.settings.splice( idx, 1 );
		}
	} );
} );


// Add the `every()` method for rows, columns and cells in a compact form
$.each( [ 'column', 'row', 'cell' ], function ( i, type ) {
	_api_register( type+'s().every()', function ( fn ) {
		var opts = this.selector.opts;
		var api = this;
		var inst;
		var counter = 0;

		return this.iterator( 'every', function ( settings, selectedIdx, tableIdx ) {
			inst = api[ type ](selectedIdx, opts);

			if (type === 'cell') {
				fn.call(inst, inst[0][0].row, inst[0][0].column, tableIdx, counter);
			}
			else {
				fn.call(inst, selectedIdx, tableIdx, counter);
			}

			counter++;
		} );
	} );
} );


// i18n method for extensions to be able to use the language object from the
// DataTable
_api_register( 'i18n()', function ( token, def, plural ) {
	var ctx = this.context[0];
	var resolved = _fnGetObjectDataFn( token )( ctx.oLanguage );

	if ( resolved === undefined ) {
		resolved = def;
	}

	if ( $.isPlainObject( resolved ) ) {
		resolved = plural !== undefined && resolved[ plural ] !== undefined ?
			resolved[ plural ] :
			resolved._;
	}

	return typeof resolved === 'string'
		? resolved.replace( '%d', plural ) // nb: plural might be undefined,
		: resolved;
} );

// Needed for header and footer, so pulled into its own function
function cleanHeader(node, className) {
	$(node).find('span.dt-column-order').remove();
	$(node).find('span.dt-column-title').each(function () {
		var title = $(this).html();
		$(this).parent().parent().append(title);
		$(this).remove();
	});
	$(node).find('div.dt-column-' + className).remove();

	$('th, td', node).removeAttr('data-dt-column');
}

/**
 * Version string for plug-ins to check compatibility. Allowed format is
 * `a.b.c-d` where: a:int, b:int, c:int, d:string(dev|beta|alpha). `d` is used
 * only for non-release builds. See https://semver.org/ for more information.
 *  @member
 *  @type string
 *  @default Version number
 */
DataTable.version = "2.3.1";

/**
 * Private data store, containing all of the settings objects that are
 * created for the tables on a given page.
 *
 * Note that the `DataTable.settings` object is aliased to
 * `jQuery.fn.dataTableExt` through which it may be accessed and
 * manipulated, or `jQuery.fn.dataTable.settings`.
 *  @member
 *  @type array
 *  @default []
 *  @private
 */
DataTable.settings = [];

/**
 * Object models container, for the various models that DataTables has
 * available to it. These models define the objects that are used to hold
 * the active state and configuration of the table.
 *  @namespace
 */
DataTable.models = {};



/**
 * Template object for the way in which DataTables holds information about
 * search information for the global filter and individual column filters.
 *  @namespace
 */
DataTable.models.oSearch = {
	/**
	 * Flag to indicate if the filtering should be case insensitive or not
	 */
	"caseInsensitive": true,

	/**
	 * Applied search term
	 */
	"search": "",

	/**
	 * Flag to indicate if the search term should be interpreted as a
	 * regular expression (true) or not (false) and therefore and special
	 * regex characters escaped.
	 */
	"regex": false,

	/**
	 * Flag to indicate if DataTables is to use its smart filtering or not.
	 */
	"smart": true,

	/**
	 * Flag to indicate if DataTables should only trigger a search when
	 * the return key is pressed.
	 */
	"return": false
};




/**
 * Template object for the way in which DataTables holds information about
 * each individual row. This is the object format used for the settings
 * aoData array.
 *  @namespace
 */
DataTable.models.oRow = {
	/**
	 * TR element for the row
	 */
	"nTr": null,

	/**
	 * Array of TD elements for each row. This is null until the row has been
	 * created.
	 */
	"anCells": null,

	/**
	 * Data object from the original data source for the row. This is either
	 * an array if using the traditional form of DataTables, or an object if
	 * using mData options. The exact type will depend on the passed in
	 * data from the data source, or will be an array if using DOM a data
	 * source.
	 */
	"_aData": [],

	/**
	 * Sorting data cache - this array is ostensibly the same length as the
	 * number of columns (although each index is generated only as it is
	 * needed), and holds the data that is used for sorting each column in the
	 * row. We do this cache generation at the start of the sort in order that
	 * the formatting of the sort data need be done only once for each cell
	 * per sort. This array should not be read from or written to by anything
	 * other than the master sorting methods.
	 */
	"_aSortData": null,

	/**
	 * Per cell filtering data cache. As per the sort data cache, used to
	 * increase the performance of the filtering in DataTables
	 */
	"_aFilterData": null,

	/**
	 * Filtering data cache. This is the same as the cell filtering cache, but
	 * in this case a string rather than an array. This is easily computed with
	 * a join on `_aFilterData`, but is provided as a cache so the join isn't
	 * needed on every search (memory traded for performance)
	 */
	"_sFilterRow": null,

	/**
	 * Denote if the original data source was from the DOM, or the data source
	 * object. This is used for invalidating data, so DataTables can
	 * automatically read data from the original source, unless uninstructed
	 * otherwise.
	 */
	"src": null,

	/**
	 * Index in the aoData array. This saves an indexOf lookup when we have the
	 * object, but want to know the index
	 */
	"idx": -1,

	/**
	 * Cached display value
	 */
	displayData: null
};


/**
 * Template object for the column information object in DataTables. This object
 * is held in the settings aoColumns array and contains all the information that
 * DataTables needs about each individual column.
 *
 * Note that this object is related to {@link DataTable.defaults.column}
 * but this one is the internal data store for DataTables's cache of columns.
 * It should NOT be manipulated outside of DataTables. Any configuration should
 * be done through the initialisation options.
 *  @namespace
 */
DataTable.models.oColumn = {
	/**
	 * Column index.
	 */
	"idx": null,

	/**
	 * A list of the columns that sorting should occur on when this column
	 * is sorted. That this property is an array allows multi-column sorting
	 * to be defined for a column (for example first name / last name columns
	 * would benefit from this). The values are integers pointing to the
	 * columns to be sorted on (typically it will be a single integer pointing
	 * at itself, but that doesn't need to be the case).
	 */
	"aDataSort": null,

	/**
	 * Define the sorting directions that are applied to the column, in sequence
	 * as the column is repeatedly sorted upon - i.e. the first value is used
	 * as the sorting direction when the column if first sorted (clicked on).
	 * Sort it again (click again) and it will move on to the next index.
	 * Repeat until loop.
	 */
	"asSorting": null,

	/**
	 * Flag to indicate if the column is searchable, and thus should be included
	 * in the filtering or not.
	 */
	"bSearchable": null,

	/**
	 * Flag to indicate if the column is sortable or not.
	 */
	"bSortable": null,

	/**
	 * Flag to indicate if the column is currently visible in the table or not
	 */
	"bVisible": null,

	/**
	 * Store for manual type assignment using the `column.type` option. This
	 * is held in store so we can manipulate the column's `sType` property.
	 */
	"_sManualType": null,

	/**
	 * Flag to indicate if HTML5 data attributes should be used as the data
	 * source for filtering or sorting. True is either are.
	 */
	"_bAttrSrc": false,

	/**
	 * Developer definable function that is called whenever a cell is created (Ajax source,
	 * etc) or processed for input (DOM source). This can be used as a compliment to mRender
	 * allowing you to modify the DOM element (add background colour for example) when the
	 * element is available.
	 */
	"fnCreatedCell": null,

	/**
	 * Function to get data from a cell in a column. You should <b>never</b>
	 * access data directly through _aData internally in DataTables - always use
	 * the method attached to this property. It allows mData to function as
	 * required. This function is automatically assigned by the column
	 * initialisation method
	 */
	"fnGetData": null,

	/**
	 * Function to set data for a cell in the column. You should <b>never</b>
	 * set the data directly to _aData internally in DataTables - always use
	 * this method. It allows mData to function as required. This function
	 * is automatically assigned by the column initialisation method
	 */
	"fnSetData": null,

	/**
	 * Property to read the value for the cells in the column from the data
	 * source array / object. If null, then the default content is used, if a
	 * function is given then the return from the function is used.
	 */
	"mData": null,

	/**
	 * Partner property to mData which is used (only when defined) to get
	 * the data - i.e. it is basically the same as mData, but without the
	 * 'set' option, and also the data fed to it is the result from mData.
	 * This is the rendering method to match the data method of mData.
	 */
	"mRender": null,

	/**
	 * The class to apply to all TD elements in the table's TBODY for the column
	 */
	"sClass": null,

	/**
	 * When DataTables calculates the column widths to assign to each column,
	 * it finds the longest string in each column and then constructs a
	 * temporary table and reads the widths from that. The problem with this
	 * is that "mmm" is much wider then "iiii", but the latter is a longer
	 * string - thus the calculation can go wrong (doing it properly and putting
	 * it into an DOM object and measuring that is horribly(!) slow). Thus as
	 * a "work around" we provide this option. It will append its value to the
	 * text that is found to be the longest string for the column - i.e. padding.
	 */
	"sContentPadding": null,

	/**
	 * Allows a default value to be given for a column's data, and will be used
	 * whenever a null data source is encountered (this can be because mData
	 * is set to null, or because the data source itself is null).
	 */
	"sDefaultContent": null,

	/**
	 * Name for the column, allowing reference to the column by name as well as
	 * by index (needs a lookup to work by name).
	 */
	"sName": null,

	/**
	 * Custom sorting data type - defines which of the available plug-ins in
	 * afnSortData the custom sorting will use - if any is defined.
	 */
	"sSortDataType": 'std',

	/**
	 * Class to be applied to the header element when sorting on this column
	 */
	"sSortingClass": null,

	/**
	 * Title of the column - what is seen in the TH element (nTh).
	 */
	"sTitle": null,

	/**
	 * Column sorting and filtering type
	 */
	"sType": null,

	/**
	 * Width of the column
	 */
	"sWidth": null,

	/**
	 * Width of the column when it was first "encountered"
	 */
	"sWidthOrig": null,

	/** Cached string which is the longest in the column */
	maxLenString: null,

	/**
	 * Store for named searches
	 */
	searchFixed: null
};


/*
 * Developer note: The properties of the object below are given in Hungarian
 * notation, that was used as the interface for DataTables prior to v1.10, however
 * from v1.10 onwards the primary interface is camel case. In order to avoid
 * breaking backwards compatibility utterly with this change, the Hungarian
 * version is still, internally the primary interface, but is is not documented
 * - hence the @name tags in each doc comment. This allows a Javascript function
 * to create a map from Hungarian notation to camel case (going the other direction
 * would require each property to be listed, which would add around 3K to the size
 * of DataTables, while this method is about a 0.5K hit).
 *
 * Ultimately this does pave the way for Hungarian notation to be dropped
 * completely, but that is a massive amount of work and will break current
 * installs (therefore is on-hold until v2).
 */

/**
 * Initialisation options that can be given to DataTables at initialisation
 * time.
 *  @namespace
 */
DataTable.defaults = {
	/**
	 * An array of data to use for the table, passed in at initialisation which
	 * will be used in preference to any data which is already in the DOM. This is
	 * particularly useful for constructing tables purely in Javascript, for
	 * example with a custom Ajax call.
	 */
	"aaData": null,


	/**
	 * If ordering is enabled, then DataTables will perform a first pass sort on
	 * initialisation. You can define which column(s) the sort is performed
	 * upon, and the sorting direction, with this variable. The `sorting` array
	 * should contain an array for each column to be sorted initially containing
	 * the column's index and a direction string ('asc' or 'desc').
	 */
	"aaSorting": [[0,'asc']],


	/**
	 * This parameter is basically identical to the `sorting` parameter, but
	 * cannot be overridden by user interaction with the table. What this means
	 * is that you could have a column (visible or hidden) which the sorting
	 * will always be forced on first - any sorting after that (from the user)
	 * will then be performed as required. This can be useful for grouping rows
	 * together.
	 */
	"aaSortingFixed": [],


	/**
	 * DataTables can be instructed to load data to display in the table from a
	 * Ajax source. This option defines how that Ajax call is made and where to.
	 *
	 * The `ajax` property has three different modes of operation, depending on
	 * how it is defined. These are:
	 *
	 * * `string` - Set the URL from where the data should be loaded from.
	 * * `object` - Define properties for `jQuery.ajax`.
	 * * `function` - Custom data get function
	 *
	 * `string`
	 * --------
	 *
	 * As a string, the `ajax` property simply defines the URL from which
	 * DataTables will load data.
	 *
	 * `object`
	 * --------
	 *
	 * As an object, the parameters in the object are passed to
	 * [jQuery.ajax](https://api.jquery.com/jQuery.ajax/) allowing fine control
	 * of the Ajax request. DataTables has a number of default parameters which
	 * you can override using this option. Please refer to the jQuery
	 * documentation for a full description of the options available, although
	 * the following parameters provide additional options in DataTables or
	 * require special consideration:
	 *
	 * * `data` - As with jQuery, `data` can be provided as an object, but it
	 *   can also be used as a function to manipulate the data DataTables sends
	 *   to the server. The function takes a single parameter, an object of
	 *   parameters with the values that DataTables has readied for sending. An
	 *   object may be returned which will be merged into the DataTables
	 *   defaults, or you can add the items to the object that was passed in and
	 *   not return anything from the function. This supersedes `fnServerParams`
	 *   from DataTables 1.9-.
	 *
	 * * `dataSrc` - By default DataTables will look for the property `data` (or
	 *   `aaData` for compatibility with DataTables 1.9-) when obtaining data
	 *   from an Ajax source or for server-side processing - this parameter
	 *   allows that property to be changed. You can use Javascript dotted
	 *   object notation to get a data source for multiple levels of nesting, or
	 *   it my be used as a function. As a function it takes a single parameter,
	 *   the JSON returned from the server, which can be manipulated as
	 *   required, with the returned value being that used by DataTables as the
	 *   data source for the table.
	 *
	 * * `success` - Should not be overridden it is used internally in
	 *   DataTables. To manipulate / transform the data returned by the server
	 *   use `ajax.dataSrc`, or use `ajax` as a function (see below).
	 *
	 * `function`
	 * ----------
	 *
	 * As a function, making the Ajax call is left up to yourself allowing
	 * complete control of the Ajax request. Indeed, if desired, a method other
	 * than Ajax could be used to obtain the required data, such as Web storage
	 * or an AIR database.
	 *
	 * The function is given four parameters and no return is required. The
	 * parameters are:
	 *
	 * 1. _object_ - Data to send to the server
	 * 2. _function_ - Callback function that must be executed when the required
	 *    data has been obtained. That data should be passed into the callback
	 *    as the only parameter
	 * 3. _object_ - DataTables settings object for the table
	 */
	"ajax": null,


	/**
	 * This parameter allows you to readily specify the entries in the length drop
	 * down menu that DataTables shows when pagination is enabled. It can be
	 * either a 1D array of options which will be used for both the displayed
	 * option and the value, or a 2D array which will use the array in the first
	 * position as the value, and the array in the second position as the
	 * displayed options (useful for language strings such as 'All').
	 *
	 * Note that the `pageLength` property will be automatically set to the
	 * first value given in this array, unless `pageLength` is also provided.
	 */
	"aLengthMenu": [ 10, 25, 50, 100 ],


	/**
	 * The `columns` option in the initialisation parameter allows you to define
	 * details about the way individual columns behave. For a full list of
	 * column options that can be set, please see
	 * {@link DataTable.defaults.column}. Note that if you use `columns` to
	 * define your columns, you must have an entry in the array for every single
	 * column that you have in your table (these can be null if you don't which
	 * to specify any options).
	 */
	"aoColumns": null,

	/**
	 * Very similar to `columns`, `columnDefs` allows you to target a specific
	 * column, multiple columns, or all columns, using the `targets` property of
	 * each object in the array. This allows great flexibility when creating
	 * tables, as the `columnDefs` arrays can be of any length, targeting the
	 * columns you specifically want. `columnDefs` may use any of the column
	 * options available: {@link DataTable.defaults.column}, but it _must_
	 * have `targets` defined in each object in the array. Values in the `targets`
	 * array may be:
	 *   <ul>
	 *     <li>a string - class name will be matched on the TH for the column</li>
	 *     <li>0 or a positive integer - column index counting from the left</li>
	 *     <li>a negative integer - column index counting from the right</li>
	 *     <li>the string "_all" - all columns (i.e. assign a default)</li>
	 *   </ul>
	 */
	"aoColumnDefs": null,


	/**
	 * Basically the same as `search`, this parameter defines the individual column
	 * filtering state at initialisation time. The array must be of the same size
	 * as the number of columns, and each element be an object with the parameters
	 * `search` and `escapeRegex` (the latter is optional). 'null' is also
	 * accepted and the default will be used.
	 */
	"aoSearchCols": [],


	/**
	 * Enable or disable automatic column width calculation. This can be disabled
	 * as an optimisation (it takes some time to calculate the widths) if the
	 * tables widths are passed in using `columns`.
	 */
	"bAutoWidth": true,


	/**
	 * Deferred rendering can provide DataTables with a huge speed boost when you
	 * are using an Ajax or JS data source for the table. This option, when set to
	 * true, will cause DataTables to defer the creation of the table elements for
	 * each row until they are needed for a draw - saving a significant amount of
	 * time.
	 */
	"bDeferRender": true,


	/**
	 * Replace a DataTable which matches the given selector and replace it with
	 * one which has the properties of the new initialisation object passed. If no
	 * table matches the selector, then the new DataTable will be constructed as
	 * per normal.
	 */
	"bDestroy": false,


	/**
	 * Enable or disable filtering of data. Filtering in DataTables is "smart" in
	 * that it allows the end user to input multiple words (space separated) and
	 * will match a row containing those words, even if not in the order that was
	 * specified (this allow matching across multiple columns). Note that if you
	 * wish to use filtering in DataTables this must remain 'true' - to remove the
	 * default filtering input box and retain filtering abilities, please use
	 * {@link DataTable.defaults.dom}.
	 */
	"bFilter": true,

	/**
	 * Used only for compatiblity with DT1
	 * @deprecated
	 */
	"bInfo": true,

	/**
	 * Used only for compatiblity with DT1
	 * @deprecated
	 */
	"bLengthChange": true,

	/**
	 * Enable or disable pagination.
	 */
	"bPaginate": true,


	/**
	 * Enable or disable the display of a 'processing' indicator when the table is
	 * being processed (e.g. a sort). This is particularly useful for tables with
	 * large amounts of data where it can take a noticeable amount of time to sort
	 * the entries.
	 */
	"bProcessing": false,


	/**
	 * Retrieve the DataTables object for the given selector. Note that if the
	 * table has already been initialised, this parameter will cause DataTables
	 * to simply return the object that has already been set up - it will not take
	 * account of any changes you might have made to the initialisation object
	 * passed to DataTables (setting this parameter to true is an acknowledgement
	 * that you understand this). `destroy` can be used to reinitialise a table if
	 * you need.
	 */
	"bRetrieve": false,


	/**
	 * When vertical (y) scrolling is enabled, DataTables will force the height of
	 * the table's viewport to the given height at all times (useful for layout).
	 * However, this can look odd when filtering data down to a small data set,
	 * and the footer is left "floating" further down. This parameter (when
	 * enabled) will cause DataTables to collapse the table's viewport down when
	 * the result set will fit within the given Y height.
	 */
	"bScrollCollapse": false,


	/**
	 * Configure DataTables to use server-side processing. Note that the
	 * `ajax` parameter must also be given in order to give DataTables a
	 * source to obtain the required data for each draw.
	 */
	"bServerSide": false,


	/**
	 * Enable or disable sorting of columns. Sorting of individual columns can be
	 * disabled by the `sortable` option for each column.
	 */
	"bSort": true,


	/**
	 * Enable or display DataTables' ability to sort multiple columns at the
	 * same time (activated by shift-click by the user).
	 */
	"bSortMulti": true,


	/**
	 * Allows control over whether DataTables should use the top (true) unique
	 * cell that is found for a single column, or the bottom (false - default).
	 * This is useful when using complex headers.
	 */
	"bSortCellsTop": null,


	/** Specify which row is the title row in the header. Replacement for bSortCellsTop */
	titleRow: null,


	/**
	 * Enable or disable the addition of the classes `sorting\_1`, `sorting\_2` and
	 * `sorting\_3` to the columns which are currently being sorted on. This is
	 * presented as a feature switch as it can increase processing time (while
	 * classes are removed and added) so for large data sets you might want to
	 * turn this off.
	 */
	"bSortClasses": true,


	/**
	 * Enable or disable state saving. When enabled HTML5 `localStorage` will be
	 * used to save table display information such as pagination information,
	 * display length, filtering and sorting. As such when the end user reloads
	 * the page the display display will match what thy had previously set up.
	 */
	"bStateSave": false,


	/**
	 * This function is called when a TR element is created (and all TD child
	 * elements have been inserted), or registered if using a DOM source, allowing
	 * manipulation of the TR element (adding classes etc).
	 */
	"fnCreatedRow": null,


	/**
	 * This function is called on every 'draw' event, and allows you to
	 * dynamically modify any aspect you want about the created DOM.
	 */
	"fnDrawCallback": null,


	/**
	 * Identical to fnHeaderCallback() but for the table footer this function
	 * allows you to modify the table footer on every 'draw' event.
	 */
	"fnFooterCallback": null,


	/**
	 * When rendering large numbers in the information element for the table
	 * (i.e. "Showing 1 to 10 of 57 entries") DataTables will render large numbers
	 * to have a comma separator for the 'thousands' units (e.g. 1 million is
	 * rendered as "1,000,000") to help readability for the end user. This
	 * function will override the default method DataTables uses.
	 */
	"fnFormatNumber": function ( toFormat ) {
		return toFormat.toString().replace(
			/\B(?=(\d{3})+(?!\d))/g,
			this.oLanguage.sThousands
		);
	},


	/**
	 * This function is called on every 'draw' event, and allows you to
	 * dynamically modify the header row. This can be used to calculate and
	 * display useful information about the table.
	 */
	"fnHeaderCallback": null,


	/**
	 * The information element can be used to convey information about the current
	 * state of the table. Although the internationalisation options presented by
	 * DataTables are quite capable of dealing with most customisations, there may
	 * be times where you wish to customise the string further. This callback
	 * allows you to do exactly that.
	 */
	"fnInfoCallback": null,


	/**
	 * Called when the table has been initialised. Normally DataTables will
	 * initialise sequentially and there will be no need for this function,
	 * however, this does not hold true when using external language information
	 * since that is obtained using an async XHR call.
	 */
	"fnInitComplete": null,


	/**
	 * Called at the very start of each table draw and can be used to cancel the
	 * draw by returning false, any other return (including undefined) results in
	 * the full draw occurring).
	 */
	"fnPreDrawCallback": null,


	/**
	 * This function allows you to 'post process' each row after it have been
	 * generated for each table draw, but before it is rendered on screen. This
	 * function might be used for setting the row class name etc.
	 */
	"fnRowCallback": null,


	/**
	 * Load the table state. With this function you can define from where, and how, the
	 * state of a table is loaded. By default DataTables will load from `localStorage`
	 * but you might wish to use a server-side database or cookies.
	 */
	"fnStateLoadCallback": function ( settings ) {
		try {
			return JSON.parse(
				(settings.iStateDuration === -1 ? sessionStorage : localStorage).getItem(
					'DataTables_'+settings.sInstance+'_'+location.pathname
				)
			);
		} catch (e) {
			return {};
		}
	},


	/**
	 * Callback which allows modification of the saved state prior to loading that state.
	 * This callback is called when the table is loading state from the stored data, but
	 * prior to the settings object being modified by the saved state. Note that for
	 * plug-in authors, you should use the `stateLoadParams` event to load parameters for
	 * a plug-in.
	 */
	"fnStateLoadParams": null,


	/**
	 * Callback that is called when the state has been loaded from the state saving method
	 * and the DataTables settings object has been modified as a result of the loaded state.
	 */
	"fnStateLoaded": null,


	/**
	 * Save the table state. This function allows you to define where and how the state
	 * information for the table is stored By default DataTables will use `localStorage`
	 * but you might wish to use a server-side database or cookies.
	 */
	"fnStateSaveCallback": function ( settings, data ) {
		try {
			(settings.iStateDuration === -1 ? sessionStorage : localStorage).setItem(
				'DataTables_'+settings.sInstance+'_'+location.pathname,
				JSON.stringify( data )
			);
		} catch (e) {
			// noop
		}
	},


	/**
	 * Callback which allows modification of the state to be saved. Called when the table
	 * has changed state a new state save is required. This method allows modification of
	 * the state saving object prior to actually doing the save, including addition or
	 * other state properties or modification. Note that for plug-in authors, you should
	 * use the `stateSaveParams` event to save parameters for a plug-in.
	 */
	"fnStateSaveParams": null,


	/**
	 * Duration for which the saved state information is considered valid. After this period
	 * has elapsed the state will be returned to the default.
	 * Value is given in seconds.
	 */
	"iStateDuration": 7200,


	/**
	 * Number of rows to display on a single page when using pagination. If
	 * feature enabled (`lengthChange`) then the end user will be able to override
	 * this to a custom setting using a pop-up menu.
	 */
	"iDisplayLength": 10,


	/**
	 * Define the starting point for data display when using DataTables with
	 * pagination. Note that this parameter is the number of records, rather than
	 * the page number, so if you have 10 records per page and want to start on
	 * the third page, it should be "20".
	 */
	"iDisplayStart": 0,


	/**
	 * By default DataTables allows keyboard navigation of the table (sorting, paging,
	 * and filtering) by adding a `tabindex` attribute to the required elements. This
	 * allows you to tab through the controls and press the enter key to activate them.
	 * The tabindex is default 0, meaning that the tab follows the flow of the document.
	 * You can overrule this using this parameter if you wish. Use a value of -1 to
	 * disable built-in keyboard navigation.
	 */
	"iTabIndex": 0,


	/**
	 * Classes that DataTables assigns to the various components and features
	 * that it adds to the HTML table. This allows classes to be configured
	 * during initialisation in addition to through the static
	 * {@link DataTable.ext.oStdClasses} object).
	 */
	"oClasses": {},


	/**
	 * All strings that DataTables uses in the user interface that it creates
	 * are defined in this object, allowing you to modified them individually or
	 * completely replace them all as required.
	 */
	"oLanguage": {
		/**
		 * Strings that are used for WAI-ARIA labels and controls only (these are not
		 * actually visible on the page, but will be read by screenreaders, and thus
		 * must be internationalised as well).
		 */
		"oAria": {
			/**
			 * ARIA label that is added to the table headers when the column may be sorted
			 */
			"orderable": ": Activate to sort",

			/**
			 * ARIA label that is added to the table headers when the column is currently being sorted
			 */
			"orderableReverse": ": Activate to invert sorting",

			/**
			 * ARIA label that is added to the table headers when the column is currently being 
			 * sorted and next step is to remove sorting
			 */
			"orderableRemove": ": Activate to remove sorting",

			paginate: {
				first: 'First',
				last: 'Last',
				next: 'Next',
				previous: 'Previous',
				number: ''
			}
		},

		/**
		 * Pagination string used by DataTables for the built-in pagination
		 * control types.
		 */
		"oPaginate": {
			/**
			 * Label and character for first page button («)
			 */
			"sFirst": "\u00AB",

			/**
			 * Last page button (»)
			 */
			"sLast": "\u00BB",

			/**
			 * Next page button (›)
			 */
			"sNext": "\u203A",

			/**
			 * Previous page button (‹)
			 */
			"sPrevious": "\u2039",
		},

		/**
		 * Plural object for the data type the table is showing
		 */
		entries: {
			_: "entries",
			1: "entry"
		},

		/**
		 * Page length options
		 */
		lengthLabels: {
			'-1': 'All'
		},

		/**
		 * This string is shown in preference to `zeroRecords` when the table is
		 * empty of data (regardless of filtering). Note that this is an optional
		 * parameter - if it is not given, the value of `zeroRecords` will be used
		 * instead (either the default or given value).
		 */
		"sEmptyTable": "No data available in table",


		/**
		 * This string gives information to the end user about the information
		 * that is current on display on the page. The following tokens can be
		 * used in the string and will be dynamically replaced as the table
		 * display updates. This tokens can be placed anywhere in the string, or
		 * removed as needed by the language requires:
		 *
		 * * `\_START\_` - Display index of the first record on the current page
		 * * `\_END\_` - Display index of the last record on the current page
		 * * `\_TOTAL\_` - Number of records in the table after filtering
		 * * `\_MAX\_` - Number of records in the table without filtering
		 * * `\_PAGE\_` - Current page number
		 * * `\_PAGES\_` - Total number of pages of data in the table
		 */
		"sInfo": "Showing _START_ to _END_ of _TOTAL_ _ENTRIES-TOTAL_",


		/**
		 * Display information string for when the table is empty. Typically the
		 * format of this string should match `info`.
		 */
		"sInfoEmpty": "Showing 0 to 0 of 0 _ENTRIES-TOTAL_",


		/**
		 * When a user filters the information in a table, this string is appended
		 * to the information (`info`) to give an idea of how strong the filtering
		 * is. The variable _MAX_ is dynamically updated.
		 */
		"sInfoFiltered": "(filtered from _MAX_ total _ENTRIES-MAX_)",


		/**
		 * If can be useful to append extra information to the info string at times,
		 * and this variable does exactly that. This information will be appended to
		 * the `info` (`infoEmpty` and `infoFiltered` in whatever combination they are
		 * being used) at all times.
		 */
		"sInfoPostFix": "",


		/**
		 * This decimal place operator is a little different from the other
		 * language options since DataTables doesn't output floating point
		 * numbers, so it won't ever use this for display of a number. Rather,
		 * what this parameter does is modify the sort methods of the table so
		 * that numbers which are in a format which has a character other than
		 * a period (`.`) as a decimal place will be sorted numerically.
		 *
		 * Note that numbers with different decimal places cannot be shown in
		 * the same table and still be sortable, the table must be consistent.
		 * However, multiple different tables on the page can use different
		 * decimal place characters.
		 */
		"sDecimal": "",


		/**
		 * DataTables has a build in number formatter (`formatNumber`) which is
		 * used to format large numbers that are used in the table information.
		 * By default a comma is used, but this can be trivially changed to any
		 * character you wish with this parameter.
		 */
		"sThousands": ",",


		/**
		 * Detail the action that will be taken when the drop down menu for the
		 * pagination length option is changed. The '_MENU_' variable is replaced
		 * with a default select list of 10, 25, 50 and 100, and can be replaced
		 * with a custom select box if required.
		 */
		"sLengthMenu": "_MENU_ _ENTRIES_ per page",


		/**
		 * When using Ajax sourced data and during the first draw when DataTables is
		 * gathering the data, this message is shown in an empty row in the table to
		 * indicate to the end user the the data is being loaded. Note that this
		 * parameter is not used when loading data by server-side processing, just
		 * Ajax sourced data with client-side processing.
		 */
		"sLoadingRecords": "Loading...",


		/**
		 * Text which is displayed when the table is processing a user action
		 * (usually a sort command or similar).
		 */
		"sProcessing": "",


		/**
		 * Details the actions that will be taken when the user types into the
		 * filtering input text box. The variable "_INPUT_", if used in the string,
		 * is replaced with the HTML text box for the filtering input allowing
		 * control over where it appears in the string. If "_INPUT_" is not given
		 * then the input box is appended to the string automatically.
		 */
		"sSearch": "Search:",


		/**
		 * Assign a `placeholder` attribute to the search `input` element
		 *  @type string
		 *  @default 
		 *
		 *  @dtopt Language
		 *  @name DataTable.defaults.language.searchPlaceholder
		 */
		"sSearchPlaceholder": "",


		/**
		 * All of the language information can be stored in a file on the
		 * server-side, which DataTables will look up if this parameter is passed.
		 * It must store the URL of the language file, which is in a JSON format,
		 * and the object has the same properties as the oLanguage object in the
		 * initialiser object (i.e. the above parameters). Please refer to one of
		 * the example language files to see how this works in action.
		 */
		"sUrl": "",


		/**
		 * Text shown inside the table records when the is no information to be
		 * displayed after filtering. `emptyTable` is shown when there is simply no
		 * information in the table at all (regardless of filtering).
		 */
		"sZeroRecords": "No matching records found"
	},


	/** The initial data order is reversed when `desc` ordering */
	orderDescReverse: true,


	/**
	 * This parameter allows you to have define the global filtering state at
	 * initialisation time. As an object the `search` parameter must be
	 * defined, but all other parameters are optional. When `regex` is true,
	 * the search string will be treated as a regular expression, when false
	 * (default) it will be treated as a straight string. When `smart`
	 * DataTables will use it's smart filtering methods (to word match at
	 * any point in the data), when false this will not be done.
	 */
	"oSearch": $.extend( {}, DataTable.models.oSearch ),


	/**
	 * Table and control layout. This replaces the legacy `dom` option.
	 */
	layout: {
		topStart: 'pageLength',
		topEnd: 'search',
		bottomStart: 'info',
		bottomEnd: 'paging'
	},


	/**
	 * Legacy DOM layout option
	 */
	"sDom": null,


	/**
	 * Search delay option. This will throttle full table searches that use the
	 * DataTables provided search input element (it does not effect calls to
	 * `dt-api search()`, providing a delay before the search is made.
	 */
	"searchDelay": null,


	/**
	 * DataTables features six different built-in options for the buttons to
	 * display for pagination control:
	 *
	 * * `numbers` - Page number buttons only
	 * * `simple` - 'Previous' and 'Next' buttons only
	 * * 'simple_numbers` - 'Previous' and 'Next' buttons, plus page numbers
	 * * `full` - 'First', 'Previous', 'Next' and 'Last' buttons
	 * * `full_numbers` - 'First', 'Previous', 'Next' and 'Last' buttons, plus page numbers
	 * * `first_last_numbers` - 'First' and 'Last' buttons, plus page numbers
	 */
	"sPaginationType": "",


	/**
	 * Enable horizontal scrolling. When a table is too wide to fit into a
	 * certain layout, or you have a large number of columns in the table, you
	 * can enable x-scrolling to show the table in a viewport, which can be
	 * scrolled. This property can be `true` which will allow the table to
	 * scroll horizontally when needed, or any CSS unit, or a number (in which
	 * case it will be treated as a pixel measurement). Setting as simply `true`
	 * is recommended.
	 */
	"sScrollX": "",


	/**
	 * This property can be used to force a DataTable to use more width than it
	 * might otherwise do when x-scrolling is enabled. For example if you have a
	 * table which requires to be well spaced, this parameter is useful for
	 * "over-sizing" the table, and thus forcing scrolling. This property can by
	 * any CSS unit, or a number (in which case it will be treated as a pixel
	 * measurement).
	 */
	"sScrollXInner": "",


	/**
	 * Enable vertical scrolling. Vertical scrolling will constrain the DataTable
	 * to the given height, and enable scrolling for any data which overflows the
	 * current viewport. This can be used as an alternative to paging to display
	 * a lot of data in a small area (although paging and scrolling can both be
	 * enabled at the same time). This property can be any CSS unit, or a number
	 * (in which case it will be treated as a pixel measurement).
	 */
	"sScrollY": "",


	/**
	 * __Deprecated__ The functionality provided by this parameter has now been
	 * superseded by that provided through `ajax`, which should be used instead.
	 *
	 * Set the HTTP method that is used to make the Ajax call for server-side
	 * processing or Ajax sourced data.
	 */
	"sServerMethod": "GET",


	/**
	 * DataTables makes use of renderers when displaying HTML elements for
	 * a table. These renderers can be added or modified by plug-ins to
	 * generate suitable mark-up for a site. For example the Bootstrap
	 * integration plug-in for DataTables uses a paging button renderer to
	 * display pagination buttons in the mark-up required by Bootstrap.
	 *
	 * For further information about the renderers available see
	 * DataTable.ext.renderer
	 */
	"renderer": null,


	/**
	 * Set the data property name that DataTables should use to get a row's id
	 * to set as the `id` property in the node.
	 */
	"rowId": "DT_RowId",


	/**
	 * Caption value
	 */
	"caption": null,


	/**
	 * For server-side processing - use the data from the DOM for the first draw
	 */
	iDeferLoading: null,

	/** Event listeners */
	on: null
};

_fnHungarianMap( DataTable.defaults );



/*
 * Developer note - See note in model.defaults.js about the use of Hungarian
 * notation and camel case.
 */

/**
 * Column options that can be given to DataTables at initialisation time.
 *  @namespace
 */
DataTable.defaults.column = {
	/**
	 * Define which column(s) an order will occur on for this column. This
	 * allows a column's ordering to take multiple columns into account when
	 * doing a sort or use the data from a different column. For example first
	 * name / last name columns make sense to do a multi-column sort over the
	 * two columns.
	 */
	"aDataSort": null,
	"iDataSort": -1,

	ariaTitle: '',


	/**
	 * You can control the default ordering direction, and even alter the
	 * behaviour of the sort handler (i.e. only allow ascending ordering etc)
	 * using this parameter.
	 */
	"asSorting": [ 'asc', 'desc', '' ],


	/**
	 * Enable or disable filtering on the data in this column.
	 */
	"bSearchable": true,


	/**
	 * Enable or disable ordering on this column.
	 */
	"bSortable": true,


	/**
	 * Enable or disable the display of this column.
	 */
	"bVisible": true,


	/**
	 * Developer definable function that is called whenever a cell is created (Ajax source,
	 * etc) or processed for input (DOM source). This can be used as a compliment to mRender
	 * allowing you to modify the DOM element (add background colour for example) when the
	 * element is available.
	 */
	"fnCreatedCell": null,


	/**
	 * This property can be used to read data from any data source property,
	 * including deeply nested objects / properties. `data` can be given in a
	 * number of different ways which effect its behaviour:
	 *
	 * * `integer` - treated as an array index for the data source. This is the
	 *   default that DataTables uses (incrementally increased for each column).
	 * * `string` - read an object property from the data source. There are
	 *   three 'special' options that can be used in the string to alter how
	 *   DataTables reads the data from the source object:
	 *    * `.` - Dotted Javascript notation. Just as you use a `.` in
	 *      Javascript to read from nested objects, so to can the options
	 *      specified in `data`. For example: `browser.version` or
	 *      `browser.name`. If your object parameter name contains a period, use
	 *      `\\` to escape it - i.e. `first\\.name`.
	 *    * `[]` - Array notation. DataTables can automatically combine data
	 *      from and array source, joining the data with the characters provided
	 *      between the two brackets. For example: `name[, ]` would provide a
	 *      comma-space separated list from the source array. If no characters
	 *      are provided between the brackets, the original array source is
	 *      returned.
	 *    * `()` - Function notation. Adding `()` to the end of a parameter will
	 *      execute a function of the name given. For example: `browser()` for a
	 *      simple function on the data source, `browser.version()` for a
	 *      function in a nested property or even `browser().version` to get an
	 *      object property if the function called returns an object. Note that
	 *      function notation is recommended for use in `render` rather than
	 *      `data` as it is much simpler to use as a renderer.
	 * * `null` - use the original data source for the row rather than plucking
	 *   data directly from it. This action has effects on two other
	 *   initialisation options:
	 *    * `defaultContent` - When null is given as the `data` option and
	 *      `defaultContent` is specified for the column, the value defined by
	 *      `defaultContent` will be used for the cell.
	 *    * `render` - When null is used for the `data` option and the `render`
	 *      option is specified for the column, the whole data source for the
	 *      row is used for the renderer.
	 * * `function` - the function given will be executed whenever DataTables
	 *   needs to set or get the data for a cell in the column. The function
	 *   takes three parameters:
	 *    * Parameters:
	 *      * `{array|object}` The data source for the row
	 *      * `{string}` The type call data requested - this will be 'set' when
	 *        setting data or 'filter', 'display', 'type', 'sort' or undefined
	 *        when gathering data. Note that when `undefined` is given for the
	 *        type DataTables expects to get the raw data for the object back<
	 *      * `{*}` Data to set when the second parameter is 'set'.
	 *    * Return:
	 *      * The return value from the function is not required when 'set' is
	 *        the type of call, but otherwise the return is what will be used
	 *        for the data requested.
	 *
	 * Note that `data` is a getter and setter option. If you just require
	 * formatting of data for output, you will likely want to use `render` which
	 * is simply a getter and thus simpler to use.
	 *
	 * Note that prior to DataTables 1.9.2 `data` was called `mDataProp`. The
	 * name change reflects the flexibility of this property and is consistent
	 * with the naming of mRender. If 'mDataProp' is given, then it will still
	 * be used by DataTables, as it automatically maps the old name to the new
	 * if required.
	 */
	"mData": null,


	/**
	 * This property is the rendering partner to `data` and it is suggested that
	 * when you want to manipulate data for display (including filtering,
	 * sorting etc) without altering the underlying data for the table, use this
	 * property. `render` can be considered to be the the read only companion to
	 * `data` which is read / write (then as such more complex). Like `data`
	 * this option can be given in a number of different ways to effect its
	 * behaviour:
	 *
	 * * `integer` - treated as an array index for the data source. This is the
	 *   default that DataTables uses (incrementally increased for each column).
	 * * `string` - read an object property from the data source. There are
	 *   three 'special' options that can be used in the string to alter how
	 *   DataTables reads the data from the source object:
	 *    * `.` - Dotted Javascript notation. Just as you use a `.` in
	 *      Javascript to read from nested objects, so to can the options
	 *      specified in `data`. For example: `browser.version` or
	 *      `browser.name`. If your object parameter name contains a period, use
	 *      `\\` to escape it - i.e. `first\\.name`.
	 *    * `[]` - Array notation. DataTables can automatically combine data
	 *      from and array source, joining the data with the characters provided
	 *      between the two brackets. For example: `name[, ]` would provide a
	 *      comma-space separated list from the source array. If no characters
	 *      are provided between the brackets, the original array source is
	 *      returned.
	 *    * `()` - Function notation. Adding `()` to the end of a parameter will
	 *      execute a function of the name given. For example: `browser()` for a
	 *      simple function on the data source, `browser.version()` for a
	 *      function in a nested property or even `browser().version` to get an
	 *      object property if the function called returns an object.
	 * * `object` - use different data for the different data types requested by
	 *   DataTables ('filter', 'display', 'type' or 'sort'). The property names
	 *   of the object is the data type the property refers to and the value can
	 *   defined using an integer, string or function using the same rules as
	 *   `render` normally does. Note that an `_` option _must_ be specified.
	 *   This is the default value to use if you haven't specified a value for
	 *   the data type requested by DataTables.
	 * * `function` - the function given will be executed whenever DataTables
	 *   needs to set or get the data for a cell in the column. The function
	 *   takes three parameters:
	 *    * Parameters:
	 *      * {array|object} The data source for the row (based on `data`)
	 *      * {string} The type call data requested - this will be 'filter',
	 *        'display', 'type' or 'sort'.
	 *      * {array|object} The full data source for the row (not based on
	 *        `data`)
	 *    * Return:
	 *      * The return value from the function is what will be used for the
	 *        data requested.
	 */
	"mRender": null,


	/**
	 * Change the cell type created for the column - either TD cells or TH cells. This
	 * can be useful as TH cells have semantic meaning in the table body, allowing them
	 * to act as a header for a row (you may wish to add scope='row' to the TH elements).
	 */
	"sCellType": "td",


	/**
	 * Class to give to each cell in this column.
	 */
	"sClass": "",

	/**
	 * When DataTables calculates the column widths to assign to each column,
	 * it finds the longest string in each column and then constructs a
	 * temporary table and reads the widths from that. The problem with this
	 * is that "mmm" is much wider then "iiii", but the latter is a longer
	 * string - thus the calculation can go wrong (doing it properly and putting
	 * it into an DOM object and measuring that is horribly(!) slow). Thus as
	 * a "work around" we provide this option. It will append its value to the
	 * text that is found to be the longest string for the column - i.e. padding.
	 * Generally you shouldn't need this!
	 */
	"sContentPadding": "",


	/**
	 * Allows a default value to be given for a column's data, and will be used
	 * whenever a null data source is encountered (this can be because `data`
	 * is set to null, or because the data source itself is null).
	 */
	"sDefaultContent": null,


	/**
	 * This parameter is only used in DataTables' server-side processing. It can
	 * be exceptionally useful to know what columns are being displayed on the
	 * client side, and to map these to database fields. When defined, the names
	 * also allow DataTables to reorder information from the server if it comes
	 * back in an unexpected order (i.e. if you switch your columns around on the
	 * client-side, your server-side code does not also need updating).
	 */
	"sName": "",


	/**
	 * Defines a data source type for the ordering which can be used to read
	 * real-time information from the table (updating the internally cached
	 * version) prior to ordering. This allows ordering to occur on user
	 * editable elements such as form inputs.
	 */
	"sSortDataType": "std",


	/**
	 * The title of this column.
	 */
	"sTitle": null,


	/**
	 * The type allows you to specify how the data for this column will be
	 * ordered. Four types (string, numeric, date and html (which will strip
	 * HTML tags before ordering)) are currently available. Note that only date
	 * formats understood by Javascript's Date() object will be accepted as type
	 * date. For example: "Mar 26, 2008 5:03 PM". May take the values: 'string',
	 * 'numeric', 'date' or 'html' (by default). Further types can be adding
	 * through plug-ins.
	 */
	"sType": null,


	/**
	 * Defining the width of the column, this parameter may take any CSS value
	 * (3em, 20px etc). DataTables applies 'smart' widths to columns which have not
	 * been given a specific width through this interface ensuring that the table
	 * remains readable.
	 */
	"sWidth": null
};

_fnHungarianMap( DataTable.defaults.column );



/**
 * DataTables settings object - this holds all the information needed for a
 * given table, including configuration, data and current application of the
 * table options. DataTables does not have a single instance for each DataTable
 * with the settings attached to that instance, but rather instances of the
 * DataTable "class" are created on-the-fly as needed (typically by a
 * $().dataTable() call) and the settings object is then applied to that
 * instance.
 *
 * Note that this object is related to {@link DataTable.defaults} but this
 * one is the internal data store for DataTables's cache of columns. It should
 * NOT be manipulated outside of DataTables. Any configuration should be done
 * through the initialisation options.
 */
DataTable.models.oSettings = {
	/**
	 * Primary features of DataTables and their enablement state.
	 */
	"oFeatures": {

		/**
		 * Flag to say if DataTables should automatically try to calculate the
		 * optimum table and columns widths (true) or not (false).
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bAutoWidth": null,

		/**
		 * Delay the creation of TR and TD elements until they are actually
		 * needed by a driven page draw. This can give a significant speed
		 * increase for Ajax source and Javascript source data, but makes no
		 * difference at all for DOM and server-side processing tables.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bDeferRender": null,

		/**
		 * Enable filtering on the table or not. Note that if this is disabled
		 * then there is no filtering at all on the table, including fnFilter.
		 * To just remove the filtering input use sDom and remove the 'f' option.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bFilter": null,

		/**
		 * Used only for compatiblity with DT1
		 * @deprecated
		 */
		"bInfo": true,

		/**
		 * Used only for compatiblity with DT1
		 * @deprecated
		 */
		"bLengthChange": true,

		/**
		 * Pagination enabled or not. Note that if this is disabled then length
		 * changing must also be disabled.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bPaginate": null,

		/**
		 * Processing indicator enable flag whenever DataTables is enacting a
		 * user request - typically an Ajax request for server-side processing.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bProcessing": null,

		/**
		 * Server-side processing enabled flag - when enabled DataTables will
		 * get all data from the server for every draw - there is no filtering,
		 * sorting or paging done on the client-side.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bServerSide": null,

		/**
		 * Sorting enablement flag.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bSort": null,

		/**
		 * Multi-column sorting
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bSortMulti": null,

		/**
		 * Apply a class to the columns which are being sorted to provide a
		 * visual highlight or not. This can slow things down when enabled since
		 * there is a lot of DOM interaction.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bSortClasses": null,

		/**
		 * State saving enablement flag.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bStateSave": null
	},


	/**
	 * Scrolling settings for a table.
	 */
	"oScroll": {
		/**
		 * When the table is shorter in height than sScrollY, collapse the
		 * table container down to the height of the table (when true).
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"bCollapse": null,

		/**
		 * Width of the scrollbar for the web-browser's platform. Calculated
		 * during table initialisation.
		 */
		"iBarWidth": 0,

		/**
		 * Viewport width for horizontal scrolling. Horizontal scrolling is
		 * disabled if an empty string.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"sX": null,

		/**
		 * Width to expand the table to when using x-scrolling. Typically you
		 * should not need to use this.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @deprecated
		 */
		"sXInner": null,

		/**
		 * Viewport height for vertical scrolling. Vertical scrolling is disabled
		 * if an empty string.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 */
		"sY": null
	},

	/**
	 * Language information for the table.
	 */
	"oLanguage": {
		/**
		 * Information callback function. See
		 * {@link DataTable.defaults.fnInfoCallback}
		 */
		"fnInfoCallback": null
	},

	/**
	 * Browser support parameters
	 */
	"oBrowser": {
		/**
		 * Determine if the vertical scrollbar is on the right or left of the
		 * scrolling container - needed for rtl language layout, although not
		 * all browsers move the scrollbar (Safari).
		 */
		"bScrollbarLeft": false,

		/**
		 * Browser scrollbar width
		 */
		"barWidth": 0
	},


	"ajax": null,


	/**
	 * Array referencing the nodes which are used for the features. The
	 * parameters of this object match what is allowed by sDom - i.e.
	 *   <ul>
	 *     <li>'l' - Length changing</li>
	 *     <li>'f' - Filtering input</li>
	 *     <li>'t' - The table!</li>
	 *     <li>'i' - Information</li>
	 *     <li>'p' - Pagination</li>
	 *     <li>'r' - pRocessing</li>
	 *   </ul>
	 */
	"aanFeatures": [],

	/**
	 * Store data information - see {@link DataTable.models.oRow} for detailed
	 * information.
	 */
	"aoData": [],

	/**
	 * Array of indexes which are in the current display (after filtering etc)
	 */
	"aiDisplay": [],

	/**
	 * Array of indexes for display - no filtering
	 */
	"aiDisplayMaster": [],

	/**
	 * Map of row ids to data indexes
	 */
	"aIds": {},

	/**
	 * Store information about each column that is in use
	 */
	"aoColumns": [],

	/**
	 * Store information about the table's header
	 */
	"aoHeader": [],

	/**
	 * Store information about the table's footer
	 */
	"aoFooter": [],

	/**
	 * Store the applied global search information in case we want to force a
	 * research or compare the old search to a new one.
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"oPreviousSearch": {},

	/**
	 * Store for named searches
	 */
	searchFixed: {},

	/**
	 * Store the applied search for each column - see
	 * {@link DataTable.models.oSearch} for the format that is used for the
	 * filtering information for each column.
	 */
	"aoPreSearchCols": [],

	/**
	 * Sorting that is applied to the table. Note that the inner arrays are
	 * used in the following manner:
	 * <ul>
	 *   <li>Index 0 - column number</li>
	 *   <li>Index 1 - current sorting direction</li>
	 * </ul>
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"aaSorting": null,

	/**
	 * Sorting that is always applied to the table (i.e. prefixed in front of
	 * aaSorting).
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"aaSortingFixed": [],

	/**
	 * If restoring a table - we should restore its width
	 */
	"sDestroyWidth": 0,

	/**
	 * Callback functions array for every time a row is inserted (i.e. on a draw).
	 */
	"aoRowCallback": [],

	/**
	 * Callback functions for the header on each draw.
	 */
	"aoHeaderCallback": [],

	/**
	 * Callback function for the footer on each draw.
	 */
	"aoFooterCallback": [],

	/**
	 * Array of callback functions for draw callback functions
	 */
	"aoDrawCallback": [],

	/**
	 * Array of callback functions for row created function
	 */
	"aoRowCreatedCallback": [],

	/**
	 * Callback functions for just before the table is redrawn. A return of
	 * false will be used to cancel the draw.
	 */
	"aoPreDrawCallback": [],

	/**
	 * Callback functions for when the table has been initialised.
	 */
	"aoInitComplete": [],


	/**
	 * Callbacks for modifying the settings to be stored for state saving, prior to
	 * saving state.
	 */
	"aoStateSaveParams": [],

	/**
	 * Callbacks for modifying the settings that have been stored for state saving
	 * prior to using the stored values to restore the state.
	 */
	"aoStateLoadParams": [],

	/**
	 * Callbacks for operating on the settings object once the saved state has been
	 * loaded
	 */
	"aoStateLoaded": [],

	/**
	 * Cache the table ID for quick access
	 */
	"sTableId": "",

	/**
	 * The TABLE node for the main table
	 */
	"nTable": null,

	/**
	 * Permanent ref to the thead element
	 */
	"nTHead": null,

	/**
	 * Permanent ref to the tfoot element - if it exists
	 */
	"nTFoot": null,

	/**
	 * Permanent ref to the tbody element
	 */
	"nTBody": null,

	/**
	 * Cache the wrapper node (contains all DataTables controlled elements)
	 */
	"nTableWrapper": null,

	/**
	 * Indicate if all required information has been read in
	 */
	"bInitialised": false,

	/**
	 * Information about open rows. Each object in the array has the parameters
	 * 'nTr' and 'nParent'
	 */
	"aoOpenRows": [],

	/**
	 * Dictate the positioning of DataTables' control elements - see
	 * {@link DataTable.model.oInit.sDom}.
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"sDom": null,

	/**
	 * Search delay (in mS)
	 */
	"searchDelay": null,

	/**
	 * Which type of pagination should be used.
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"sPaginationType": "two_button",

	/**
	 * Number of paging controls on the page. Only used for backwards compatibility
	 */
	pagingControls: 0,

	/**
	 * The state duration (for `stateSave`) in seconds.
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"iStateDuration": 0,

	/**
	 * Array of callback functions for state saving. Each array element is an
	 * object with the following parameters:
	 *   <ul>
	 *     <li>function:fn - function to call. Takes two parameters, oSettings
	 *       and the JSON string to save that has been thus far created. Returns
	 *       a JSON string to be inserted into a json object
	 *       (i.e. '"param": [ 0, 1, 2]')</li>
	 *     <li>string:sName - name of callback</li>
	 *   </ul>
	 */
	"aoStateSave": [],

	/**
	 * Array of callback functions for state loading. Each array element is an
	 * object with the following parameters:
	 *   <ul>
	 *     <li>function:fn - function to call. Takes two parameters, oSettings
	 *       and the object stored. May return false to cancel state loading</li>
	 *     <li>string:sName - name of callback</li>
	 *   </ul>
	 */
	"aoStateLoad": [],

	/**
	 * State that was saved. Useful for back reference
	 */
	"oSavedState": null,

	/**
	 * State that was loaded. Useful for back reference
	 */
	"oLoadedState": null,

	/**
	 * Note if draw should be blocked while getting data
	 */
	"bAjaxDataGet": true,

	/**
	 * The last jQuery XHR object that was used for server-side data gathering.
	 * This can be used for working with the XHR information in one of the
	 * callbacks
	 */
	"jqXHR": null,

	/**
	 * JSON returned from the server in the last Ajax request
	 */
	"json": undefined,

	/**
	 * Data submitted as part of the last Ajax request
	 */
	"oAjaxData": undefined,

	/**
	 * Send the XHR HTTP method - GET or POST (could be PUT or DELETE if
	 * required).
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"sServerMethod": null,

	/**
	 * Format numbers for display.
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"fnFormatNumber": null,

	/**
	 * List of options that can be used for the user selectable length menu.
	 * Note that this parameter will be set by the initialisation routine. To
	 * set a default use {@link DataTable.defaults}.
	 */
	"aLengthMenu": null,

	/**
	 * Counter for the draws that the table does. Also used as a tracker for
	 * server-side processing
	 */
	"iDraw": 0,

	/**
	 * Indicate if a redraw is being done - useful for Ajax
	 */
	"bDrawing": false,

	/**
	 * Draw index (iDraw) of the last error when parsing the returned data
	 */
	"iDrawError": -1,

	/**
	 * Paging display length
	 */
	"_iDisplayLength": 10,

	/**
	 * Paging start point - aiDisplay index
	 */
	"_iDisplayStart": 0,

	/**
	 * Server-side processing - number of records in the result set
	 * (i.e. before filtering), Use fnRecordsTotal rather than
	 * this property to get the value of the number of records, regardless of
	 * the server-side processing setting.
	 */
	"_iRecordsTotal": 0,

	/**
	 * Server-side processing - number of records in the current display set
	 * (i.e. after filtering). Use fnRecordsDisplay rather than
	 * this property to get the value of the number of records, regardless of
	 * the server-side processing setting.
	 */
	"_iRecordsDisplay": 0,

	/**
	 * The classes to use for the table
	 */
	"oClasses": {},

	/**
	 * Flag attached to the settings object so you can check in the draw
	 * callback if filtering has been done in the draw. Deprecated in favour of
	 * events.
	 *  @deprecated
	 */
	"bFiltered": false,

	/**
	 * Flag attached to the settings object so you can check in the draw
	 * callback if sorting has been done in the draw. Deprecated in favour of
	 * events.
	 *  @deprecated
	 */
	"bSorted": false,

	/**
	 * Indicate that if multiple rows are in the header and there is more than
	 * one unique cell per column. Replaced by titleRow
	 */
	"bSortCellsTop": null,

	/**
	 * Initialisation object that is used for the table
	 */
	"oInit": null,

	/**
	 * Destroy callback functions - for plug-ins to attach themselves to the
	 * destroy so they can clean up markup and events.
	 */
	"aoDestroyCallback": [],


	/**
	 * Get the number of records in the current record set, before filtering
	 */
	"fnRecordsTotal": function ()
	{
		return _fnDataSource( this ) == 'ssp' ?
			this._iRecordsTotal * 1 :
			this.aiDisplayMaster.length;
	},

	/**
	 * Get the number of records in the current record set, after filtering
	 */
	"fnRecordsDisplay": function ()
	{
		return _fnDataSource( this ) == 'ssp' ?
			this._iRecordsDisplay * 1 :
			this.aiDisplay.length;
	},

	/**
	 * Get the display end point - aiDisplay index
	 */
	"fnDisplayEnd": function ()
	{
		var
			len      = this._iDisplayLength,
			start    = this._iDisplayStart,
			calc     = start + len,
			records  = this.aiDisplay.length,
			features = this.oFeatures,
			paginate = features.bPaginate;

		if ( features.bServerSide ) {
			return paginate === false || len === -1 ?
				start + records :
				Math.min( start+len, this._iRecordsDisplay );
		}
		else {
			return ! paginate || calc>records || len===-1 ?
				records :
				calc;
		}
	},

	/**
	 * The DataTables object for this table
	 */
	"oInstance": null,

	/**
	 * Unique identifier for each instance of the DataTables object. If there
	 * is an ID on the table node, then it takes that value, otherwise an
	 * incrementing internal counter is used.
	 */
	"sInstance": null,

	/**
	 * tabindex attribute value that is added to DataTables control elements, allowing
	 * keyboard navigation of the table and its controls.
	 */
	"iTabIndex": 0,

	/**
	 * DIV container for the footer scrolling table if scrolling
	 */
	"nScrollHead": null,

	/**
	 * DIV container for the footer scrolling table if scrolling
	 */
	"nScrollFoot": null,

	/**
	 * Last applied sort
	 */
	"aLastSort": [],

	/**
	 * Stored plug-in instances
	 */
	"oPlugins": {},

	/**
	 * Function used to get a row's id from the row's data
	 */
	"rowIdFn": null,

	/**
	 * Data location where to store a row's id
	 */
	"rowId": null,

	caption: '',

	captionNode: null,

	colgroup: null,

	/** Delay loading of data */
	deferLoading: null,

	/** Allow auto type detection */
	typeDetect: true,

	/** ResizeObserver for the container div */
	resizeObserver: null,

	/** Keep a record of the last size of the container, so we can skip duplicates */
	containerWidth: -1,

	/** Reverse the initial order of the data set on desc ordering */
	orderDescReverse: null,

	/** Show / hide ordering indicators in headers */
	orderIndicators: true,

	/** Default ordering listener */
	orderHandler: true,

	/** Title row indicator */
	titleRow: null
};

/**
 * Extension object for DataTables that is used to provide all extension
 * options.
 *
 * Note that the `DataTable.ext` object is available through
 * `jQuery.fn.dataTable.ext` where it may be accessed and manipulated. It is
 * also aliased to `jQuery.fn.dataTableExt` for historic reasons.
 *  @namespace
 *  @extends DataTable.models.ext
 */


var extPagination = DataTable.ext.pager;

// Paging buttons configuration
$.extend( extPagination, {
	simple: function () {
		return [ 'previous', 'next' ];
	},

	full: function () {
		return [ 'first', 'previous', 'next', 'last' ];
	},

	numbers: function () {
		return [ 'numbers' ];
	},

	simple_numbers: function () {
		return [ 'previous', 'numbers', 'next' ];
	},

	full_numbers: function () {
		return [ 'first', 'previous', 'numbers', 'next', 'last' ];
	},

	first_last: function () {
		return ['first', 'last'];
	},

	first_last_numbers: function () {
		return ['first', 'numbers', 'last'];
	},

	// For testing and plug-ins to use
	_numbers: _pagingNumbers,

	// Number of number buttons - legacy, use `numbers` option for paging feature
	numbers_length: 7
} );


$.extend( true, DataTable.ext.renderer, {
	pagingButton: {
		_: function (settings, buttonType, content, active, disabled) {
			var classes = settings.oClasses.paging;
			var btnClasses = [classes.button];
			var btn;

			if (active) {
				btnClasses.push(classes.active);
			}

			if (disabled) {
				btnClasses.push(classes.disabled)
			}

			if (buttonType === 'ellipsis') {
				btn = $('<span class="ellipsis"></span>').html(content)[0];
			}
			else {
				btn = $('<button>', {
					class: btnClasses.join(' '),
					role: 'link',
					type: 'button'
				}).html(content);
			}

			return {
				display: btn,
				clicker: btn
			}
		}
	},

	pagingContainer: {
		_: function (settings, buttons) {
			// No wrapping element - just append directly to the host
			return buttons;
		}
	}
} );

// Common function to remove new lines, strip HTML and diacritic control
var _filterString = function (stripHtml, normalize) {
	return function (str) {
		if (_empty(str) || typeof str !== 'string') {
			return str;
		}

		str = str.replace( _re_new_lines, " " );

		if (stripHtml) {
			str = _stripHtml(str);
		}

		if (normalize) {
			str = _normalize(str, false);
		}

		return str;
	};
}

/*
 * Public helper functions. These aren't used internally by DataTables, or
 * called by any of the options passed into DataTables, but they can be used
 * externally by developers working with DataTables. They are helper functions
 * to make working with DataTables a little bit easier.
 */

/**
 * Common logic for moment, luxon or a date action.
 *
 * Happens after __mldObj, so don't need to call `resolveWindowsLibs` again
 */
function __mld( dtLib, momentFn, luxonFn, dateFn, arg1 ) {
	if (__moment) {
		return dtLib[momentFn]( arg1 );
	}
	else if (__luxon) {
		return dtLib[luxonFn]( arg1 );
	}
	
	return dateFn ? dtLib[dateFn]( arg1 ) : dtLib;
}


var __mlWarning = false;
var __luxon; // Can be assigned in DateTable.use()
var __moment; // Can be assigned in DateTable.use()

/**
 * 
 */
function resolveWindowLibs() {
	if (window.luxon && ! __luxon) {
		__luxon = window.luxon;
	}
	
	if (window.moment && ! __moment) {
		__moment = window.moment;
	}
}

function __mldObj (d, format, locale) {
	var dt;

	resolveWindowLibs();

	if (__moment) {
		dt = __moment.utc( d, format, locale, true );

		if (! dt.isValid()) {
			return null;
		}
	}
	else if (__luxon) {
		dt = format && typeof d === 'string'
			? __luxon.DateTime.fromFormat( d, format )
			: __luxon.DateTime.fromISO( d );

		if (! dt.isValid) {
			return null;
		}

		dt = dt.setLocale(locale);
	}
	else if (! format) {
		// No format given, must be ISO
		dt = new Date(d);
	}
	else {
		if (! __mlWarning) {
			alert('DataTables warning: Formatted date without Moment.js or Luxon - https://datatables.net/tn/17');
		}

		__mlWarning = true;
	}

	return dt;
}

// Wrapper for date, datetime and time which all operate the same way with the exception of
// the output string for auto locale support
function __mlHelper (localeString) {
	return function ( from, to, locale, def ) {
		// Luxon and Moment support
		// Argument shifting
		if ( arguments.length === 0 ) {
			locale = 'en';
			to = null; // means toLocaleString
			from = null; // means iso8601
		}
		else if ( arguments.length === 1 ) {
			locale = 'en';
			to = from;
			from = null;
		}
		else if ( arguments.length === 2 ) {
			locale = to;
			to = from;
			from = null;
		}

		var typeName = 'datetime' + (to ? '-' + to : '');

		// Add type detection and sorting specific to this date format - we need to be able to identify
		// date type columns as such, rather than as numbers in extensions. Hence the need for this.
		if (! DataTable.ext.type.order[typeName + '-pre']) {
			DataTable.type(typeName, {
				detect: function (d) {
					// The renderer will give the value to type detect as the type!
					return d === typeName ? typeName : false;
				},
				order: {
					pre: function (d) {
						// The renderer gives us Moment, Luxon or Date obects for the sorting, all of which have a
						// `valueOf` which gives milliseconds epoch
						return d.valueOf();
					}
				},
				className: 'dt-right'
			});
		}
	
		return function ( d, type ) {
			// Allow for a default value
			if (d === null || d === undefined) {
				if (def === '--now') {
					// We treat everything as UTC further down, so no changes are
					// made, as such need to get the local date / time as if it were
					// UTC
					var local = new Date();
					d = new Date( Date.UTC(
						local.getFullYear(), local.getMonth(), local.getDate(),
						local.getHours(), local.getMinutes(), local.getSeconds()
					) );
				}
				else {
					d = '';
				}
			}

			if (type === 'type') {
				// Typing uses the type name for fast matching
				return typeName;
			}

			if (d === '') {
				return type !== 'sort'
					? ''
					: __mldObj('0000-01-01 00:00:00', null, locale);
			}

			// Shortcut. If `from` and `to` are the same, we are using the renderer to
			// format for ordering, not display - its already in the display format.
			if ( to !== null && from === to && type !== 'sort' && type !== 'type' && ! (d instanceof Date) ) {
				return d;
			}

			var dt = __mldObj(d, from, locale);

			if (dt === null) {
				return d;
			}

			if (type === 'sort') {
				return dt;
			}
			
			var formatted = to === null
				? __mld(dt, 'toDate', 'toJSDate', '')[localeString]()
				: __mld(dt, 'format', 'toFormat', 'toISOString', to);

			// XSS protection
			return type === 'display' ?
				_escapeHtml( formatted ) :
				formatted;
		};
	}
}

// Based on locale, determine standard number formatting
// Fallback for legacy browsers is US English
var __thousands = ',';
var __decimal = '.';

if (window.Intl !== undefined) {
	try {
		var num = new Intl.NumberFormat().formatToParts(100000.1);
	
		for (var i=0 ; i<num.length ; i++) {
			if (num[i].type === 'group') {
				__thousands = num[i].value;
			}
			else if (num[i].type === 'decimal') {
				__decimal = num[i].value;
			}
		}
	}
	catch (e) {
		// noop
	}
}

// Formatted date time detection - use by declaring the formats you are going to use
DataTable.datetime = function ( format, locale ) {
	var typeName = 'datetime-' + format;

	if (! locale) {
		locale = 'en';
	}

	if (! DataTable.ext.type.order[typeName]) {
		DataTable.type(typeName, {
			detect: function (d) {
				var dt = __mldObj(d, format, locale);
				return d === '' || dt ? typeName : false;
			},
			order: {
				pre: function (d) {
					return __mldObj(d, format, locale) || 0;
				}
			},
			className: 'dt-right'
		});
	}
}

/**
 * Helpers for `columns.render`.
 *
 * The options defined here can be used with the `columns.render` initialisation
 * option to provide a display renderer. The following functions are defined:
 *
 * * `moment` - Uses the MomentJS library to convert from a given format into another.
 * This renderer has three overloads:
 *   * 1 parameter:
 *     * `string` - Format to convert to (assumes input is ISO8601 and locale is `en`)
 *   * 2 parameters:
 *     * `string` - Format to convert from
 *     * `string` - Format to convert to. Assumes `en` locale
 *   * 3 parameters:
 *     * `string` - Format to convert from
 *     * `string` - Format to convert to
 *     * `string` - Locale
 * * `number` - Will format numeric data (defined by `columns.data`) for
 *   display, retaining the original unformatted data for sorting and filtering.
 *   It takes 5 parameters:
 *   * `string` - Thousands grouping separator
 *   * `string` - Decimal point indicator
 *   * `integer` - Number of decimal points to show
 *   * `string` (optional) - Prefix.
 *   * `string` (optional) - Postfix (/suffix).
 * * `text` - Escape HTML to help prevent XSS attacks. It has no optional
 *   parameters.
 *
 * @example
 *   // Column definition using the number renderer
 *   {
 *     data: "salary",
 *     render: $.fn.dataTable.render.number( '\'', '.', 0, '$' )
 *   }
 *
 * @namespace
 */
DataTable.render = {
	date: __mlHelper('toLocaleDateString'),
	datetime: __mlHelper('toLocaleString'),
	time: __mlHelper('toLocaleTimeString'),
	number: function ( thousands, decimal, precision, prefix, postfix ) {
		// Auto locale detection
		if (thousands === null || thousands === undefined) {
			thousands = __thousands;
		}

		if (decimal === null || decimal === undefined) {
			decimal = __decimal;
		}

		return {
			display: function ( d ) {
				if ( typeof d !== 'number' && typeof d !== 'string' ) {
					return d;
				}

				if (d === '' || d === null) {
					return d;
				}

				var negative = d < 0 ? '-' : '';
				var flo = parseFloat( d );
				var abs = Math.abs(flo);

				// Scientific notation for large and small numbers
				if (abs >= 100000000000 || (abs < 0.0001 && abs !== 0) ) {
					var exp = flo.toExponential(precision).split(/e\+?/);
					return exp[0] + ' x 10<sup>' + exp[1] + '</sup>';
				}

				// If NaN then there isn't much formatting that we can do - just
				// return immediately, escaping any HTML (this was supposed to
				// be a number after all)
				if ( isNaN( flo ) ) {
					return _escapeHtml( d );
				}

				flo = flo.toFixed( precision );
				d = Math.abs( flo );

				var intPart = parseInt( d, 10 );
				var floatPart = precision ?
					decimal+(d - intPart).toFixed( precision ).substring( 2 ):
					'';

				// If zero, then can't have a negative prefix
				if (intPart === 0 && parseFloat(floatPart) === 0) {
					negative = '';
				}

				return negative + (prefix||'') +
					intPart.toString().replace(
						/\B(?=(\d{3})+(?!\d))/g, thousands
					) +
					floatPart +
					(postfix||'');
			}
		};
	},

	text: function () {
		return {
			display: _escapeHtml,
			filter: _escapeHtml
		};
	}
};


var _extTypes = DataTable.ext.type;

// Get / set type
DataTable.type = function (name, prop, val) {
	if (! prop) {
		return {
			className: _extTypes.className[name],
			detect: _extTypes.detect.find(function (fn) {
				return fn._name === name;
			}),
			order: {
				pre: _extTypes.order[name + '-pre'],
				asc: _extTypes.order[name + '-asc'],
				desc: _extTypes.order[name + '-desc']
			},
			render: _extTypes.render[name],
			search: _extTypes.search[name]
		};
	}

	var setProp = function(prop, propVal) {
		_extTypes[prop][name] = propVal;
	};
	var setDetect = function (detect) {
		// `detect` can be a function or an object - we set a name
		// property for either - that is used for the detection
		Object.defineProperty(detect, "_name", {value: name});

		var idx = _extTypes.detect.findIndex(function (item) {
			return item._name === name;
		});

		if (idx === -1) {
			_extTypes.detect.unshift(detect);
		}
		else {
			_extTypes.detect.splice(idx, 1, detect);
		}
	};
	var setOrder = function (obj) {
		_extTypes.order[name + '-pre'] = obj.pre; // can be undefined
		_extTypes.order[name + '-asc'] = obj.asc; // can be undefined
		_extTypes.order[name + '-desc'] = obj.desc; // can be undefined
	};

	// prop is optional
	if (val === undefined) {
		val = prop;
		prop = null;
	}

	if (prop === 'className') {
		setProp('className', val);
	}
	else if (prop === 'detect') {
		setDetect(val);
	}
	else if (prop === 'order') {
		setOrder(val);
	}
	else if (prop === 'render') {
		setProp('render', val);
	}
	else if (prop === 'search') {
		setProp('search', val);
	}
	else if (! prop) {
		if (val.className) {
			setProp('className', val.className);
		}

		if (val.detect !== undefined) {
			setDetect(val.detect);
		}

		if (val.order) {
			setOrder(val.order);
		}

		if (val.render !== undefined) {
			setProp('render', val.render);
		}

		if (val.search !== undefined) {
			setProp('search', val.search);
		}
	}
}

// Get a list of types
DataTable.types = function () {
	return _extTypes.detect.map(function (fn) {
		return fn._name;
	});
};

var __diacriticSort = function (a, b) {
	a = a !== null && a !== undefined ? a.toString().toLowerCase() : '';
	b = b !== null && b !== undefined ? b.toString().toLowerCase() : '';

	// Checked for `navigator.languages` support in `oneOf` so this code can't execute in old
	// Safari and thus can disable this check
	// eslint-disable-next-line compat/compat
	return a.localeCompare(b, navigator.languages[0] || navigator.language, {
		numeric: true,
		ignorePunctuation: true,
	});
}

var __diacriticHtmlSort = function (a, b) {
	a = _stripHtml(a);
	b = _stripHtml(b);

	return __diacriticSort(a, b);
}

//
// Built in data types
//

DataTable.type('string', {
	detect: function () {
		return 'string';
	},
	order: {
		pre: function ( a ) {
			// This is a little complex, but faster than always calling toString,
			// http://jsperf.com/tostring-v-check
			return _empty(a) && typeof a !== 'boolean' ?
				'' :
				typeof a === 'string' ?
					a.toLowerCase() :
					! a.toString ?
						'' :
						a.toString();
		}
	},
	search: _filterString(false, true)
});

DataTable.type('string-utf8', {
	detect: {
		allOf: function ( d ) {
			return true;
		},
		oneOf: function ( d ) {
			// At least one data point must contain a non-ASCII character
			// This line will also check if navigator.languages is supported or not. If not (Safari 10.0-)
			// this data type won't be supported.
			// eslint-disable-next-line compat/compat
			return ! _empty( d ) && navigator.languages && typeof d === 'string' && d.match(/[^\x00-\x7F]/);
		}
	},
	order: {
		asc: __diacriticSort,
		desc: function (a, b) {
			return __diacriticSort(a, b) * -1;
		}
	},
	search: _filterString(false, true)
});


DataTable.type('html', {
	detect: {
		allOf: function ( d ) {
			return _empty( d ) || (typeof d === 'string' && d.indexOf('<') !== -1);
		},
		oneOf: function ( d ) {
			// At least one data point must contain a `<`
			return ! _empty( d ) && typeof d === 'string' && d.indexOf('<') !== -1;
		}
	},
	order: {
		pre: function ( a ) {
			return _empty(a) ?
				'' :
				a.replace ?
					_stripHtml(a).trim().toLowerCase() :
					a+'';
		}
	},
	search: _filterString(true, true)
});


DataTable.type('html-utf8', {
	detect: {
		allOf: function ( d ) {
			return _empty( d ) || (typeof d === 'string' && d.indexOf('<') !== -1);
		},
		oneOf: function ( d ) {
			// At least one data point must contain a `<` and a non-ASCII character
			// eslint-disable-next-line compat/compat
			return navigator.languages &&
				! _empty( d ) &&
				typeof d === 'string' &&
				d.indexOf('<') !== -1 &&
				typeof d === 'string' && d.match(/[^\x00-\x7F]/);
		}
	},
	order: {
		asc: __diacriticHtmlSort,
		desc: function (a, b) {
			return __diacriticHtmlSort(a, b) * -1;
		}
	},
	search: _filterString(true, true)
});


DataTable.type('date', {
	className: 'dt-type-date',
	detect: {
		allOf: function ( d ) {
			// V8 tries _very_ hard to make a string passed into `Date.parse()`
			// valid, so we need to use a regex to restrict date formats. Use a
			// plug-in for anything other than ISO8601 style strings
			if ( d && !(d instanceof Date) && ! _re_date.test(d) ) {
				return null;
			}
			var parsed = Date.parse(d);
			return (parsed !== null && !isNaN(parsed)) || _empty(d);
		},
		oneOf: function ( d ) {
			// At least one entry must be a date or a string with a date
			return (d instanceof Date) || (typeof d === 'string' && _re_date.test(d));
		}
	},
	order: {
		pre: function ( d ) {
			var ts = Date.parse( d );
			return isNaN(ts) ? -Infinity : ts;
		}
	}
});


DataTable.type('html-num-fmt', {
	className: 'dt-type-numeric',
	detect: {
		allOf: function ( d, settings ) {
			var decimal = settings.oLanguage.sDecimal;
			return _htmlNumeric( d, decimal, true, false );
		},
		oneOf: function (d, settings) {
			// At least one data point must contain a numeric value
			var decimal = settings.oLanguage.sDecimal;
			return _htmlNumeric( d, decimal, true, false );
		}
	},
	order: {
		pre: function ( d, s ) {
			var dp = s.oLanguage.sDecimal;
			return __numericReplace( d, dp, _re_html, _re_formatted_numeric );
		}
	},
	search: _filterString(true, true)
});


DataTable.type('html-num', {
	className: 'dt-type-numeric',
	detect: {
		allOf: function ( d, settings ) {
			var decimal = settings.oLanguage.sDecimal;
			return _htmlNumeric( d, decimal, false, true );
		},
		oneOf: function (d, settings) {
			// At least one data point must contain a numeric value
			var decimal = settings.oLanguage.sDecimal;
			return _htmlNumeric( d, decimal, false, false );
		}
	},
	order: {
		pre: function ( d, s ) {
			var dp = s.oLanguage.sDecimal;
			return __numericReplace( d, dp, _re_html );
		}
	},
	search: _filterString(true, true)
});


DataTable.type('num-fmt', {
	className: 'dt-type-numeric',
	detect: {
		allOf: function ( d, settings ) {
			var decimal = settings.oLanguage.sDecimal;
			return _isNumber( d, decimal, true, true );
		},
		oneOf: function (d, settings) {
			// At least one data point must contain a numeric value
			var decimal = settings.oLanguage.sDecimal;
			return _isNumber( d, decimal, true, false );
		}
	},
	order: {
		pre: function ( d, s ) {
			var dp = s.oLanguage.sDecimal;
			return __numericReplace( d, dp, _re_formatted_numeric );
		}
	}
});


DataTable.type('num', {
	className: 'dt-type-numeric',
	detect: {
		allOf: function ( d, settings ) {
			var decimal = settings.oLanguage.sDecimal;
			return _isNumber( d, decimal, false, true );
		},
		oneOf: function (d, settings) {
			// At least one data point must contain a numeric value
			var decimal = settings.oLanguage.sDecimal;
			return _isNumber( d, decimal, false, false );
		}
	},
	order: {
		pre: function (d, s) {
			var dp = s.oLanguage.sDecimal;
			return __numericReplace( d, dp );
		}
	}
});




var __numericReplace = function ( d, decimalPlace, re1, re2 ) {
	if ( d !== 0 && (!d || d === '-') ) {
		return -Infinity;
	}
	
	var type = typeof d;

	if (type === 'number' || type === 'bigint') {
		return d;
	}

	// If a decimal place other than `.` is used, it needs to be given to the
	// function so we can detect it and replace with a `.` which is the only
	// decimal place Javascript recognises - it is not locale aware.
	if ( decimalPlace ) {
		d = _numToDecimal( d, decimalPlace );
	}

	if ( d.replace ) {
		if ( re1 ) {
			d = d.replace( re1, '' );
		}

		if ( re2 ) {
			d = d.replace( re2, '' );
		}
	}

	return d * 1;
};


$.extend( true, DataTable.ext.renderer, {
	footer: {
		_: function ( settings, cell, classes ) {
			cell.addClass(classes.tfoot.cell);
		}
	},

	header: {
		_: function ( settings, cell, classes ) {
			cell.addClass(classes.thead.cell);

			if (! settings.oFeatures.bSort) {
				cell.addClass(classes.order.none);
			}

			var titleRow = settings.titleRow;
			var headerRows = cell.closest('thead').find('tr');
			var rowIdx = cell.parent().index();

			// Conditions to not apply the ordering icons
			if (
				// Cells and rows which have the attribute to disable the icons
				cell.attr('data-dt-order') === 'disable' ||
				cell.parent().attr('data-dt-order') === 'disable' ||

				// titleRow support, for defining a specific row in the header
				(titleRow === true && rowIdx !== 0) ||
				(titleRow === false && rowIdx !== headerRows.length - 1) ||
				(typeof titleRow === 'number' && rowIdx !== titleRow)
			) {
				return;
			}

			// No additional mark-up required
			// Attach a sort listener to update on sort - note that using the
			// `DT` namespace will allow the event to be removed automatically
			// on destroy, while the `dt` namespaced event is the one we are
			// listening for
			$(settings.nTable).on( 'order.dt.DT column-visibility.dt.DT', function ( e, ctx, column ) {
				if ( settings !== ctx ) { // need to check this this is the host
					return;               // table, not a nested one
				}

				var sorting = ctx.sortDetails;

				if (! sorting) {
					return;
				}

				var orderedColumns = _pluck(sorting, 'col');

				// This handler is only needed on column visibility if the column is part of the
				// ordering. If it isn't, then we can bail out to save performance. It could be a
				// separate event handler, but this is a balance between code reuse / size and performance
				// console.log(e, e.name, column, orderedColumns, orderedColumns.includes(column))
				if (e.type === 'column-visibility' && ! orderedColumns.includes(column)) {
					return;
				}

				var i;
				var orderClasses = classes.order;
				var columns = ctx.api.columns( cell );
				var col = settings.aoColumns[columns.flatten()[0]];
				var orderable = columns.orderable().includes(true);
				var ariaType = '';
				var indexes = columns.indexes();
				var sortDirs = columns.orderable(true).flatten();
				var tabIndex = settings.iTabIndex;
				var canOrder = ctx.orderHandler && orderable;

				cell
					.removeClass(
						orderClasses.isAsc +' '+
						orderClasses.isDesc
					)
					.toggleClass( orderClasses.none, ! orderable )
					.toggleClass( orderClasses.canAsc, canOrder && sortDirs.includes('asc') )
					.toggleClass( orderClasses.canDesc, canOrder && sortDirs.includes('desc') );

				// Determine if all of the columns that this cell covers are included in the
				// current ordering
				var isOrdering = true;
				
				for (i=0; i<indexes.length; i++) {
					if (! orderedColumns.includes(indexes[i])) {
						isOrdering = false;
					}
				}

				if ( isOrdering ) {
					// Get the ordering direction for the columns under this cell
					// Note that it is possible for a cell to be asc and desc sorting
					// (column spanning cells)
					var orderDirs = columns.order();

					cell.addClass(
						orderDirs.includes('asc') ? orderClasses.isAsc : '' +
						orderDirs.includes('desc') ? orderClasses.isDesc : ''
					);
				}

				// Find the first visible column that has ordering applied to it - it get's
				// the aria information, as the ARIA spec says that only one column should
				// be marked with aria-sort
				var firstVis = -1; // column index

				for (i=0; i<orderedColumns.length; i++) {
					if (settings.aoColumns[orderedColumns[i]].bVisible) {
						firstVis = orderedColumns[i];
						break;
					}
				}

				if (indexes[0] == firstVis) {
					var firstSort = sorting[0];
					var sortOrder = col.asSorting;

					cell.attr('aria-sort', firstSort.dir === 'asc' ? 'ascending' : 'descending');

					// Determine if the next click will remove sorting or change the sort
					ariaType = ! sortOrder[firstSort.index + 1] ? 'Remove' : 'Reverse';
				}
				else {
					cell.removeAttr('aria-sort');
				}

				// Make the headers tab-able for keyboard navigation
				if (orderable) {
					var orderSpan = cell.find('.dt-column-order');
					
					orderSpan
						.attr('role', 'button')
						.attr('aria-label', orderable
							? col.ariaTitle + ctx.api.i18n('oAria.orderable' + ariaType)
							: col.ariaTitle
						);

					if (tabIndex !== -1) {
						orderSpan.attr('tabindex', tabIndex);
					}
				}
			} );
		}
	},

	layout: {
		_: function ( settings, container, items ) {
			var classes = settings.oClasses.layout;
			var row = $('<div/>')
				.attr('id', items.id || null)
				.addClass(items.className || classes.row)
				.appendTo( container );

			DataTable.ext.renderer.layout._forLayoutRow(items, function (key, val) {
				if (key === 'id' || key === 'className') {
					return;
				}

				var klass = '';

				if (val.table) {
					row.addClass(classes.tableRow);
					klass += classes.tableCell + ' ';
				}

				if (key === 'start') {
					klass += classes.start;
				}
				else if (key === 'end') {
					klass += classes.end;
				}
				else {
					klass += classes.full;
				}

				$('<div/>')
					.attr({
						id: val.id || null,
						"class": val.className
							? val.className
							: classes.cell + ' ' + klass
					})
					.append( val.contents )
					.appendTo( row );
			});
		},

		// Shared for use by the styling frameworks
		_forLayoutRow: function (items, fn) {
			// As we are inserting dom elements, we need start / end in a
			// specific order, this function is used for sorting the layout
			// keys.
			var layoutEnum = function (x) {
				switch (x) {
					case '': return 0;
					case 'start': return 1;
					case 'end': return 2;
					default: return 3;
				}
			};

			Object
				.keys(items)
				.sort(function (a, b) {
					return layoutEnum(a) - layoutEnum(b);
				})
				.forEach(function (key) {
					fn(key, items[key]);
				});
		}
	}
} );


DataTable.feature = {};

// Third parameter is internal only!
DataTable.feature.register = function ( name, cb, legacy ) {
	DataTable.ext.features[ name ] = cb;

	if (legacy) {
		_ext.feature.push({
			cFeature: legacy,
			fnInit: cb
		});
	}
};

function _divProp(el, prop, val) {
	if (val) {
		el[prop] = val;
	}
}

DataTable.feature.register( 'div', function ( settings, opts ) {
	var n = $('<div>')[0];

	if (opts) {
		_divProp(n, 'className', opts.className);
		_divProp(n, 'id', opts.id);
		_divProp(n, 'innerHTML', opts.html);
		_divProp(n, 'textContent', opts.text);
	}

	return n;
} );

DataTable.feature.register( 'info', function ( settings, opts ) {
	// For compatibility with the legacy `info` top level option
	if (! settings.oFeatures.bInfo) {
		return null;
	}

	var
		lang  = settings.oLanguage,
		tid = settings.sTableId,
		n = $('<div/>', {
			'class': settings.oClasses.info.container,
		} );

	opts = $.extend({
		callback: lang.fnInfoCallback,
		empty: lang.sInfoEmpty,
		postfix: lang.sInfoPostFix,
		search: lang.sInfoFiltered,
		text: lang.sInfo,
	}, opts);


	// Update display on each draw
	settings.aoDrawCallback.push(function (s) {
		_fnUpdateInfo(s, opts, n);
	});

	// For the first info display in the table, we add a callback and aria information.
	if (! settings._infoEl) {
		n.attr({
			'aria-live': 'polite',
			id: tid+'_info',
			role: 'status'
		});

		// Table is described by our info div
		$(settings.nTable).attr( 'aria-describedby', tid+'_info' );

		settings._infoEl = n;
	}

	return n;
}, 'i' );

/**
 * Update the information elements in the display
 *  @param {object} settings dataTables settings object
 *  @memberof DataTable#oApi
 */
function _fnUpdateInfo ( settings, opts, node )
{
	var
		start = settings._iDisplayStart+1,
		end   = settings.fnDisplayEnd(),
		max   = settings.fnRecordsTotal(),
		total = settings.fnRecordsDisplay(),
		out   = total
			? opts.text
			: opts.empty;

	if ( total !== max ) {
		// Record set after filtering
		out += ' ' + opts.search;
	}

	// Convert the macros
	out += opts.postfix;
	out = _fnMacros( settings, out );

	if ( opts.callback ) {
		out = opts.callback.call( settings.oInstance,
			settings, start, end, max, total, out
		);
	}

	node.html( out );

	_fnCallbackFire(settings, null, 'info', [settings, node[0], out]);
}

var __searchCounter = 0;

// opts
// - text
// - placeholder
DataTable.feature.register( 'search', function ( settings, opts ) {
	// Don't show the input if filtering isn't available on the table
	if (! settings.oFeatures.bFilter) {
		return null;
	}

	var classes = settings.oClasses.search;
	var tableId = settings.sTableId;
	var language = settings.oLanguage;
	var previousSearch = settings.oPreviousSearch;
	var input = '<input type="search" class="'+classes.input+'"/>';

	opts = $.extend({
		placeholder: language.sSearchPlaceholder,
		processing: false,
		text: language.sSearch
	}, opts);

	// The _INPUT_ is optional - is appended if not present
	if (opts.text.indexOf('_INPUT_') === -1) {
		opts.text += '_INPUT_';
	}

	opts.text = _fnMacros(settings, opts.text);

	// We can put the <input> outside of the label if it is at the start or end
	// which helps improve accessability (not all screen readers like implicit
	// for elements).
	var end = opts.text.match(/_INPUT_$/);
	var start = opts.text.match(/^_INPUT_/);
	var removed = opts.text.replace(/_INPUT_/, '');
	var str = '<label>' + opts.text + '</label>';

	if (start) {
		str = '_INPUT_<label>' + removed + '</label>';
	}
	else if (end) {
		str = '<label>' + removed + '</label>_INPUT_';
	}

	var filter = $('<div>')
		.addClass(classes.container)
		.append(str.replace(/_INPUT_/, input));

	// add for and id to label and input
	filter.find('label').attr('for', 'dt-search-' + __searchCounter);
	filter.find('input').attr('id', 'dt-search-' + __searchCounter);
	__searchCounter++;

	var searchFn = function(event) {
		var val = this.value;

		if(previousSearch.return && event.key !== "Enter") {
			return;
		}

		/* Now do the filter */
		if ( val != previousSearch.search ) {
			_fnProcessingRun(settings, opts.processing, function () {
				previousSearch.search = val;
		
				_fnFilterComplete( settings, previousSearch );
		
				// Need to redraw, without resorting
				settings._iDisplayStart = 0;
				_fnDraw( settings );
			});
		}
	};

	var searchDelay = settings.searchDelay !== null ?
		settings.searchDelay :
		0;

	var jqFilter = $('input', filter)
		.val( previousSearch.search )
		.attr( 'placeholder', opts.placeholder )
		.on(
			'keyup.DT search.DT input.DT paste.DT cut.DT',
			searchDelay ?
				DataTable.util.debounce( searchFn, searchDelay ) :
				searchFn
		)
		.on( 'mouseup.DT', function(e) {
			// Edge fix! Edge 17 does not trigger anything other than mouse events when clicking
			// on the clear icon (Edge bug 17584515). This is safe in other browsers as `searchFn`
			// checks the value to see if it has changed. In other browsers it won't have.
			setTimeout( function () {
				searchFn.call(jqFilter[0], e);
			}, 10);
		} )
		.on( 'keypress.DT', function(e) {
			/* Prevent form submission */
			if ( e.keyCode == 13 ) {
				return false;
			}
		} )
		.attr('aria-controls', tableId);

	// Update the input elements whenever the table is filtered
	$(settings.nTable).on( 'search.dt.DT', function ( ev, s ) {
		if ( settings === s && jqFilter[0] !== document.activeElement ) {
			jqFilter.val( typeof previousSearch.search !== 'function'
				? previousSearch.search
				: ''
			);
		}
	} );

	return filter;
}, 'f' );

// opts
// - type - button configuration
// - buttons - number of buttons to show - must be odd
DataTable.feature.register( 'paging', function ( settings, opts ) {
	// Don't show the paging input if the table doesn't have paging enabled
	if (! settings.oFeatures.bPaginate) {
		return null;
	}

	opts = $.extend({
		buttons: DataTable.ext.pager.numbers_length,
		type: settings.sPaginationType,
		boundaryNumbers: true,
		firstLast: true,
		previousNext: true,
		numbers: true
	}, opts);

	var host = $('<div/>')
		.addClass(settings.oClasses.paging.container + (opts.type ? ' paging_' + opts.type : ''))
		.append(
			$('<nav>')
				.attr('aria-label', 'pagination')
				.addClass(settings.oClasses.paging.nav)
		);
	var draw = function () {
		_pagingDraw(settings, host.children(), opts);
	};

	settings.aoDrawCallback.push(draw);

	// Responsive redraw of paging control
	$(settings.nTable).on('column-sizing.dt.DT', draw);

	return host;
}, 'p' );

/**
 * Dynamically create the button type array based on the configuration options.
 * This will only happen if the paging type is not defined.
 */
function _pagingDynamic(opts) {
	var out = [];

	if (opts.numbers) {
		out.push('numbers');
	}

	if (opts.previousNext) {
		out.unshift('previous');
		out.push('next');
	}

	if (opts.firstLast) {
		out.unshift('first');
		out.push('last');
	}

	return out;
}

function _pagingDraw(settings, host, opts) {
	if (! settings._bInitComplete) {
		return;
	}

	var
		plugin = opts.type
			? DataTable.ext.pager[ opts.type ]
			: _pagingDynamic,
		aria = settings.oLanguage.oAria.paginate || {},
		start      = settings._iDisplayStart,
		len        = settings._iDisplayLength,
		visRecords = settings.fnRecordsDisplay(),
		all        = len === -1,
		page = all ? 0 : Math.ceil( start / len ),
		pages = all ? 1 : Math.ceil( visRecords / len ),
		buttons = [],
		buttonEls = [],
		buttonsNested = plugin(opts)
			.map(function (val) {
				return val === 'numbers'
					? _pagingNumbers(page, pages, opts.buttons, opts.boundaryNumbers)
					: val;
			});

	// .flat() would be better, but not supported in old Safari
	buttons = buttons.concat.apply(buttons, buttonsNested);

	for (var i=0 ; i<buttons.length ; i++) {
		var button = buttons[i];

		var btnInfo = _pagingButtonInfo(settings, button, page, pages);
		var btn = _fnRenderer( settings, 'pagingButton' )(
			settings,
			button,
			btnInfo.display,
			btnInfo.active,
			btnInfo.disabled
		);

		var ariaLabel = typeof button === 'string'
			? aria[ button ]
			: aria.number
				? aria.number + (button+1)
				: null;

		// Common attributes
		$(btn.clicker).attr({
			'aria-controls': settings.sTableId,
			'aria-disabled': btnInfo.disabled ? 'true' : null,
			'aria-current': btnInfo.active ? 'page' : null,
			'aria-label': ariaLabel,
			'data-dt-idx': button,
			'tabIndex': btnInfo.disabled
				? -1
				: settings.iTabIndex && btn.clicker[0].nodeName.toLowerCase() !== 'span'
					? settings.iTabIndex
					: null, // `0` doesn't need a tabIndex since it is the default
		});

		if (typeof button !== 'number') {
			$(btn.clicker).addClass(button);
		}

		_fnBindAction(
			btn.clicker, {action: button}, function(e) {
				e.preventDefault();

				_fnPageChange( settings, e.data.action, true );
			}
		);

		buttonEls.push(btn.display);
	}

	var wrapped = _fnRenderer(settings, 'pagingContainer')(
		settings, buttonEls
	);

	var activeEl = host.find(document.activeElement).data('dt-idx');

	host.empty().append(wrapped);

	if ( activeEl !== undefined ) {
		host.find( '[data-dt-idx='+activeEl+']' ).trigger('focus');
	}

	// Responsive - check if the buttons are over two lines based on the
	// height of the buttons and the container.
	if (buttonEls.length) {
		var outerHeight = $(buttonEls[0]).outerHeight();
	
		if (
			opts.buttons > 1 && // prevent infinite
			outerHeight > 0 && // will be 0 if hidden
			$(host).height() >= (outerHeight * 2) - 10
		) {
			_pagingDraw(settings, host, $.extend({}, opts, { buttons: opts.buttons - 2 }));
		}
	}
}

/**
 * Get properties for a button based on the current paging state of the table
 *
 * @param {*} settings DT settings object
 * @param {*} button The button type in question
 * @param {*} page Table's current page
 * @param {*} pages Number of pages
 * @returns Info object
 */
function _pagingButtonInfo(settings, button, page, pages) {
	var lang = settings.oLanguage.oPaginate;
	var o = {
		display: '',
		active: false,
		disabled: false
	};

	switch ( button ) {
		case 'ellipsis':
			o.display = '&#x2026;';
			break;

		case 'first':
			o.display = lang.sFirst;

			if (page === 0) {
				o.disabled = true;
			}
			break;

		case 'previous':
			o.display = lang.sPrevious;

			if ( page === 0 ) {
				o.disabled = true;
			}
			break;

		case 'next':
			o.display = lang.sNext;

			if ( pages === 0 || page === pages-1 ) {
				o.disabled = true;
			}
			break;

		case 'last':
			o.display = lang.sLast;

			if ( pages === 0 || page === pages-1 ) {
				o.disabled = true;
			}
			break;

		default:
			if ( typeof button === 'number' ) {
				o.display = settings.fnFormatNumber( button + 1 );
				
				if (page === button) {
					o.active = true;
				}
			}
			break;
	}

	return o;
}

/**
 * Compute what number buttons to show in the paging control
 *
 * @param {*} page Current page
 * @param {*} pages Total number of pages
 * @param {*} buttons Target number of number buttons
 * @param {boolean} addFirstLast Indicate if page 1 and end should be included
 * @returns Buttons to show
 */
function _pagingNumbers ( page, pages, buttons, addFirstLast ) {
	var
		numbers = [],
		half = Math.floor(buttons / 2),
		before = addFirstLast ? 2 : 1,
		after = addFirstLast ? 1 : 0;

	if ( pages <= buttons ) {
		numbers = _range(0, pages);
	}
	else if (buttons === 1) {
		// Single button - current page only
		numbers = [page];
	}
	else if (buttons === 3) {
		// Special logic for just three buttons
		if (page <= 1) {
			numbers = [0, 1, 'ellipsis'];
		}
		else if (page >= pages - 2) {
			numbers = _range(pages-2, pages);
			numbers.unshift('ellipsis');
		}
		else {
			numbers = ['ellipsis', page, 'ellipsis'];
		}
	}
	else if ( page <= half ) {
		numbers = _range(0, buttons-before);
		numbers.push('ellipsis');

		if (addFirstLast) {
			numbers.push(pages-1);
		}
	}
	else if ( page >= pages - 1 - half ) {
		numbers = _range(pages-(buttons-before), pages);
		numbers.unshift('ellipsis');

		if (addFirstLast) {
			numbers.unshift(0);
		}
	}
	else {
		numbers = _range(page-half+before, page+half-after);
		numbers.push('ellipsis');
		numbers.unshift('ellipsis');

		if (addFirstLast) {
			numbers.push(pages-1);
			numbers.unshift(0);
		}
	}

	return numbers;
}

var __lengthCounter = 0;

// opts
// - menu
// - text
DataTable.feature.register( 'pageLength', function ( settings, opts ) {
	var features = settings.oFeatures;

	// For compatibility with the legacy `pageLength` top level option
	if (! features.bPaginate || ! features.bLengthChange) {
		return null;
	}

	opts = $.extend({
		menu: settings.aLengthMenu,
		text: settings.oLanguage.sLengthMenu
	}, opts);

	var
		classes  = settings.oClasses.length,
		tableId  = settings.sTableId,
		menu     = opts.menu,
		lengths  = [],
		language = [],
		i;

	// Options can be given in a number of ways
	if (Array.isArray( menu[0] )) {
		// Old 1.x style - 2D array
		lengths = menu[0];
		language = menu[1];
	}
	else {
		for ( i=0 ; i<menu.length ; i++ ) {
			// An object with different label and value
			if ($.isPlainObject(menu[i])) {
				lengths.push(menu[i].value);
				language.push(menu[i].label);
			}
			else {
				// Or just a number to display and use
				lengths.push(menu[i]);
				language.push(menu[i]);
			}
		}
	}

	// We can put the <select> outside of the label if it is at the start or
	// end which helps improve accessability (not all screen readers like
	// implicit for elements).
	var end = opts.text.match(/_MENU_$/);
	var start = opts.text.match(/^_MENU_/);
	var removed = opts.text.replace(/_MENU_/, '');
	var str = '<label>' + opts.text + '</label>';

	if (start) {
		str = '_MENU_<label>' + removed + '</label>';
	}
	else if (end) {
		str = '<label>' + removed + '</label>_MENU_';
	}

	// Wrapper element - use a span as a holder for where the select will go
	var tmpId = 'tmp-' + (+new Date())
	var div = $('<div/>')
		.addClass( classes.container )
		.append(
			str.replace( '_MENU_', '<span id="'+tmpId+'"></span>' )
		);

	// Save text node content for macro updating
	var textNodes = [];
	Array.prototype.slice.call(div.find('label')[0].childNodes).forEach(function (el) {
		if (el.nodeType === Node.TEXT_NODE) {
			textNodes.push({
				el: el,
				text: el.textContent
			});
		}
	});

	// Update the label text in case it has an entries value
	var updateEntries = function (len) {
		textNodes.forEach(function (node) {
			node.el.textContent = _fnMacros(settings, node.text, len);
		});
	}

	// Next, the select itself, along with the options
	var select = $('<select/>', {
		'aria-controls': tableId,
		'class':         classes.select
	} );

	for ( i=0 ; i<lengths.length ; i++ ) {
		// Attempt to look up the length from the i18n options
		var label = settings.api.i18n('lengthLabels.' + lengths[i], null);

		if (label === null) {
			// If not present, fallback to old style
			label = typeof language[i] === 'number' ?
				settings.fnFormatNumber( language[i] ) :
				language[i];
		}

		select[0][ i ] = new Option(label, lengths[i]);
	}

	// add for and id to label and input
	div.find('label').attr('for', 'dt-length-' + __lengthCounter);
	select.attr('id', 'dt-length-' + __lengthCounter);
	__lengthCounter++;

	// Swap in the select list
	div.find('#' + tmpId).replaceWith(select);

	// Can't use `select` variable as user might provide their own and the
	// reference is broken by the use of outerHTML
	$('select', div)
		.val( settings._iDisplayLength )
		.on( 'change.DT', function() {
			_fnLengthChange( settings, $(this).val() );
			_fnDraw( settings );
		} );

	// Update node value whenever anything changes the table's length
	$(settings.nTable).on( 'length.dt.DT', function (e, s, len) {
		if ( settings === s ) {
			$('select', div).val( len );

			// Resolve plurals in the text for the new length
			updateEntries(len);
		}
	} );

	updateEntries(settings._iDisplayLength);

	return div;
}, 'l' );

// jQuery access
$.fn.dataTable = DataTable;

// Provide access to the host jQuery object (circular reference)
DataTable.$ = $;

// Legacy aliases
$.fn.dataTableSettings = DataTable.settings;
$.fn.dataTableExt = DataTable.ext;

// With a capital `D` we return a DataTables API instance rather than a
// jQuery object
$.fn.DataTable = function ( opts ) {
	return $(this).dataTable( opts ).api();
};

// All properties that are available to $.fn.dataTable should also be
// available on $.fn.DataTable
$.each( DataTable, function ( prop, val ) {
	$.fn.DataTable[ prop ] = val;
} );

export default DataTable;
