Duplication checks are now handled directly in Sizzle, no need to do extra work in...

[jquery.git] / src / selector.js

diff --git a/src/selector.js b/src/selector.js
index 331ad3c..5712f57 100644 (file)
--- a/src/selector.js
+++ b/src/selector.js
@@ -111,6 +111,19 @@ var Sizzle = function(selector, context, results, seed) {
 
        if ( extra ) {
                Sizzle( extra, context, results, seed );
+
+               if ( sortOrder ) {
+                       hasDuplicate = false;
+                       results.sort(sortOrder);
+
+                       if ( hasDuplicate ) {
+                               for ( var i = 1; i < results.length; i++ ) {
+                                       if ( results[i] === results[i-1] ) {
+                                               results.splice(i--, 1);
+                                       }
+                               }
+                       }
+               }
        }
 
        return results;
@@ -648,6 +661,26 @@ try {
        };
 }
 
+var sortOrder;
+
+if ( document.documentElement.compareDocumentPosition ) {
+       sortOrder = function( a, b ) {
+               var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
+               if ( ret === 0 ) {
+                       hasDuplicate = true;
+               }
+               return ret;
+       };
+} else if ( document.documentElement.sourceIndex === 1 ) {
+       sortOrder = function( a, b ) {
+               var ret = a.sourceIndex - b.sourceIndex;
+               if ( ret === 0 ) {
+                       hasDuplicate = true;
+               }
+               return ret;
+       };
+}
+
 // Check to see if the browser returns elements by name when
 // querying by getElementById (and provide a workaround)
 (function(){