Function createPositionalPseudo

2.0.3/2.0.3.js:1281–1297

* Returns a function to use in pseudos for positionals * @param {Function} fn

( fn )

         * @param {Function} fn
         */
        function createPositionalPseudo( fn ) {
            return markFunction(function( argument ) {
                argument = +argument;
                return markFuntion(function( seed, matches ) {
                    var j,
                        matchIndexes = fn( [], seed.length, argument ),
                        i = matchIndexes.length;

                    // Match elements found at the specified indexes
                    while ( i-- ) {
                        if ( seed[ (j = matchIndexes[i]) ] ) {
                            seed[j] = !(matches[j] = seed[j]);
                        }
                    }
                });
            });
        }

        /**
         * Detect xml