Extracting number from NSString - objective-c

Question

I have an NSString which when logged gives me an answer like this one:
Response: oauth_token_secret=6h8hblp42jfowfy&oauth_token=9tmqsojggieln6z
The two numbers change every single time.
Is there a way to extract the two numbers and create two strings with one of each??
Like:
NSString *key = #"9tmqsojggieln6z";

Answer 1

//copy the string in a new string variable
NSMutableString *auth_token = [NSMutableString stringWithString:response];
NSRange match = [auth_token rangeOfString: #"&oauth_token="];
[auth_token deleteCharactersInRange: NSMakeRange(0, match.location+13)];
//auth_token will now have the auth token string
NSMutableString *auth_token_secret = [NSMutableString stringWithString:response];
NSRange range1 = [auth_token_secret rangeOfString:[NSString stringWithFormat:#"&oauth_token=%#", auth_token]];
[auth_token_secret deleteCharactersInRange:range1];
NSRange range2 = [auth_token_secret rangeOfString:#"oauth_token_secret="];
[auth_token_secret deleteCharactersInRange: range2];
//auth_token_secret will have the required secret string.

Answer 2

I had the same problem. As response I get the ids of objects sometimes as string sometimes as numbers. Then I wrote a category for NSDictionary which has the following method:
- (NSString *)stringFromStringOrNumberForKey:(NSString *)key
{
id secret = [self objectForKey:key];
if ([secret isKindOfClass:[NSNumber class]]) {
NSNumberFormatter * numberFormatter = [[NSNumberFormatter alloc] init];
secret = [numberFormatter stringFromNumber:secret];
}
return secret;
}

Answer 3

I would try the following:
NSString *_response = #"oauth_token_secret=6h8hblp42jfowfy&oauth_token=9tmqsojggieln6z";
NSMutableDictionary *_dictionary = [[NSMutableDictionary alloc] init];
NSArray *_parameters = [_response componentsSeparatedByString:#"&"];
for (NSString *_oneParameter in _parameters) {
NSArray *_keyAndValue = [_oneParameter componentsSeparatedByString:#"="];
[_dictionary setValue:[_keyAndValue lastObject] forKey:[_keyAndValue objectAtIndex:0]];
}
// reading the values
NSLog(#"token_secret : %#", [_dictionary valueForKey:#"oauth_token_secret"]);
NSLog(#"token : %#", [_dictionary valueForKey:#"oauth_token"]);