Bug fix. Attempting to get an attribute with a colon in the name didn…

…'t work if you tried to access the attribute by name. E.g. an attribute with a name like "xml:name".

DDXMLElement.m

@@ -277,13 +277,32 @@ - (NSArray *)attributes
 
 - (DDXMLNode *)attributeForName:(NSString *)name
 {
+	const xmlChar *attrName = [name xmlChar];
+
 	xmlAttrPtr attr = ((xmlNodePtr)genericPtr)->properties;
 	while(attr != NULL)
 	{
-		if(xmlStrEqual([name xmlChar], attr->name))
+		if(attr->ns && attr->ns->prefix)
 		{
-			return [DDXMLNode nodeWithPrimitive:(xmlKindPtr)attr];
+			// If the attribute name was originally something like "xml:quack",
+			// then attr->name is "quack" and attr->ns->prefix is "xml".
+			// 
+			// So if the user is searching for "xml:quack" we need to take the prefix into account.
+			// Note that "xml:quack" is what would be printed if we output the attribute.
+
+			if(xmlStrQEqual(attr->ns->prefix, attr->name, attrName))
+			{
+				return [DDXMLNode nodeWithPrimitive:(xmlKindPtr)attr];
+			}
 		}
+		else
+		{
+			if(xmlStrEqual(attr->name, attrName))
+			{
+				return [DDXMLNode nodeWithPrimitive:(xmlKindPtr)attr];
+			}
+		}
+
 		attr = attr->next;
 	}
 	return nil;

DDXMLTesting.m

@@ -29,6 +29,7 @@ + (void)testNodesForXPath;
 + (void)testNSXMLBugs;
 + (void)testInsertChild;
 + (void)testElementSerialization;
++ (void)testAttributeWithColonInName;
 @end
 
 @implementation DDXMLTesting
@@ -64,6 +65,7 @@ + (void)performTests
 	[self testNSXMLBugs];
 	[self testInsertChild];
 	[self testElementSerialization];
+	[self testAttributeWithColonInName];
 
 	[self tearDown];
 
@@ -1513,4 +1515,23 @@ + (void)testElementSerialization
 	[pool release];
 }
 
++ (void)testAttributeWithColonInName
+{
+	NSLog(@"Starting %@...", NSStringFromSelector(_cmd));
+	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+	NSString *str = @"<artist name='Jay-Z' xml:pimp='yes' />";
+
+	NSXMLDocument *nsDoc = [[[NSXMLDocument alloc] initWithXMLString:str options:0 error:nil] autorelease];
+	DDXMLDocument *ddDoc = [[[DDXMLDocument alloc] initWithXMLString:str options:0 error:nil] autorelease];
+
+	NSXMLNode *nsa = [[nsDoc rootElement] attributeForName:@"xml:pimp"];
+	DDXMLNode *dda = [[ddDoc rootElement] attributeForName:@"xml:pimp"];
+
+	NSAssert(nsa != nil, @"Failed CHECK 1");
+	NSAssert(dda != nil, @"Failed test 1");
+
+	[pool release];
+}
+
 @end