+
+$.extend( DataTable.ext.oSort, {
+ /*
+ * text sorting
+ */
+ "string-pre": function ( a )
+ {
+ if ( typeof a != 'string' ) {
+ a = (a !== null && a.toString) ? a.toString() : '';
+ }
+ return a.toLowerCase();
+ },
+
+ "string-asc": function ( x, y )
+ {
+ return ((x < y) ? -1 : ((x > y) ? 1 : 0));
+ },
+
+ "string-desc": function ( x, y )
+ {
+ return ((x < y) ? 1 : ((x > y) ? -1 : 0));
+ },
+
+
+ /*
+ * html sorting (ignore html tags)
+ */
+ "html-pre": function ( a )
+ {
+ return a.replace( /<.*?>/g, "" ).toLowerCase();
+ },
+
+ "html-asc": function ( x, y )
+ {
+ return ((x < y) ? -1 : ((x > y) ? 1 : 0));
+ },
+
+ "html-desc": function ( x, y )
+ {
+ return ((x < y) ? 1 : ((x > y) ? -1 : 0));
+ },
+
+
+ /*
+ * date sorting
+ */
+ "date-pre": function ( a )
+ {
+ var x = Date.parse( a );
+
+ if ( isNaN(x) || x==="" )
+ {
+ x = Date.parse( "01/01/1970 00:00:00" );
+ }
+ return x;
+ },
+
+ "date-asc": function ( x, y )
+ {
+ return x - y;
+ },
+
+ "date-desc": function ( x, y )
+ {
+ return y - x;
+ },
+
+
+ /*
+ * numerical sorting
+ */
+ "numeric-pre": function ( a )
+ {
+ return (a=="-" || a==="") ? 0 : a*1;
+ },
+
+ "numeric-asc": function ( x, y )
+ {
+ return x - y;
+ },
+
+ "numeric-desc": function ( x, y )
+ {
+ return y - x;
+ }
+} );