( selector, context, results, seed )
| 770 | } |
| 771 | |
| 772 | function Sizzle( selector, context, results, seed ) { |
| 773 | var m, i, elem, nid, nidselect, match, groups, newSelector, |
| 774 | newContext = context && context.ownerDocument, |
| 775 | |
| 776 | // nodeType defaults to 9, since context defaults to document |
| 777 | nodeType = context ? context.nodeType : 9; |
| 778 | |
| 779 | results = results || []; |
| 780 | |
| 781 | // Return early from calls with invalid selector or context |
| 782 | if ( typeof selector !== "string" || !selector || |
| 783 | nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { |
| 784 | |
| 785 | return results; |
| 786 | } |
| 787 | |
| 788 | // Try to shortcut find operations (as opposed to filters) in HTML documents |
| 789 | if ( !seed ) { |
| 790 | |
| 791 | if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { |
| 792 | setDocument( context ); |
| 793 | } |
| 794 | context = context || document; |
| 795 | |
| 796 | if ( documentIsHTML ) { |
| 797 | |
| 798 | // If the selector is sufficiently simple, try using a "get*By*" DOM method |
| 799 | // (excepting DocumentFragment context, where the methods don't exist) |
| 800 | if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { |
| 801 | |
| 802 | // ID selector |
| 803 | if ( (m = match[1]) ) { |
| 804 | |
| 805 | // Document context |
| 806 | if ( nodeType === 9 ) { |
| 807 | if ( (elem = context.getElementById( m )) ) { |
| 808 | |
| 809 | // Support: IE, Opera, Webkit |
| 810 | // TODO: identify versions |
| 811 | // getElementById can match elements by name instead of ID |
| 812 | if ( elem.id === m ) { |
| 813 | results.push( elem ); |
| 814 | return results; |
| 815 | } |
| 816 | } else { |
| 817 | return results; |
| 818 | } |
| 819 | |
| 820 | // Element context |
| 821 | } else { |
| 822 | |
| 823 | // Support: IE, Opera, Webkit |
| 824 | // TODO: identify versions |
| 825 | // getElementById can match elements by name instead of ID |
| 826 | if ( newContext && (elem = newContext.getElementById( m )) && |
| 827 | contains( context, elem ) && |
| 828 | elem.id === m ) { |
| 829 |
no test coverage detected