/**

 * This plug-in will provide numeric sorting for numeric columns which have

 * extra formatting, such as thousands separators, currency symbols or any other

 * non-numeric data.

 * 

 * By default when a cell is found to have no numeric data its value is sorted

 * numerically as if its value were 0. This could also be altered to be Inifnity

 * or -Infinity as required.

 *

 * DataTables 1.10+ has formatted number detection and sorting abilities built-

 * in. As such this plug-in is marked as deprecated, but might be useful when

 * working with old versions of DataTables.

 *

 *  @name Formatted numbers

 *  @summary Sort numbers which are displayed with thousand separators

 *  @deprecated

 *  @author [Allan Jardine](http://sprymedia.co.uk)

 *

 *  @example

 *    $('#example').dataTable( {

 *       columnDefs: [

 *         { type: 'formatted-num', targets: 0 }

 *       ]

 *    } );

 */



jQuery.extend( jQuery.fn.dataTableExt.oSort, {

	"formatted-num-pre": function ( a ) {

		a = (a === "-" || a === "") ? 0 : a.replace( /[^\d\-\.]/g, "" );

		return parseFloat( a );

	},



	"formatted-num-asc": function ( a, b ) {

		return a - b;

	},



	"formatted-num-desc": function ( a, b ) {

		return b - a;

	}

} );

