-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
foundText = (NSMutableString *)[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
}

@implementation XMLDELEGATE
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict
{
    NSLog(@"didStartElement(%@)",elementName);
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
    NSLog(@"didEndElement(%@)",elementName);
}

-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
    NSLog(@"foundCharacters(%@)",string);
}

@end

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    static const unsigned char bytes[] = "<?xml version="1.0" encoding="UTF-8"?><Details>S |nºconta|</Details>";
    NSXMLParser *p;
    NSData *d = [NSData dataWithBytes:bytes length:sizeof(bytes)-1];

    p = [[NSXMLParser alloc] initWithData:d];
    NSLog(@"data=%@",d);
    p.delegate = [XMLDELEGATE new];
    [p parse];
}

@end

2014-03-01 15:35:07.272 xmlp2[35923:303] data=<3c3f786d 6c207665 7273696f 6e3d2231 2e302220 656e636f 64696e67 3d225554 462d3822 3f3e3c44 65746169 6c733e53 207c6ec2 ba636f6e 74617c3c 2f446574 61696c73 3e>
2014-03-01 15:35:07.273 xmlp2[35923:303] didStartElement(Details)
2014-03-01 15:35:07.273 xmlp2[35923:303] foundCharacters(S |n)
2014-03-01 15:35:07.273 xmlp2[35923:303] foundCharacters(ºconta|)
2014-03-01 15:35:07.273 xmlp2[35923:303] didEndElement(Details)