case http:

- (void)openSiteFeeds:(NSString *)stringURL{
    NSError *error = NULL;
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"http:\\\\*" options:NSRegularExpressionCaseInsensitive error:&error];
    NSUInteger numberOfMatches = [regex numberOfMatchesInString:stringURL options:0 range:NSMakeRange(0, [stringURL length])];
    NSLog(@"%@ %d", error, numberOfMatches);

    NSString *stringRightURL;
    if (0 == numberOfMatches) {
        stringRightURL  = [NSString stringWithFormat:@"http:\\@%",stringURL];
    }else{
        stringRightURL  = stringURL;
    }