JSON, XML, Html Parse of iOS

ios_json_xml_html_parse.m

//JSON example
// - receiedData : {"feed" : {"title" : "my title", "content" : "my content"}} 인 경우 

-  (void) startJsonParse(NSData *receivedData) 
{
    NSError* error;
    NSDictionary* dictionary = [NSJSONSerialization JSONObjectWithData:receivedData options:kNilOptionserror:&error];
    NSArray *array = [[dictionary objectForKey:@"feed"] objectForKey:@"entry"];
        
    for (NSDictionary *entry in array) {
        NSString *title = [[entry objectForKey:@"title"] valueForKey:@"title"];
        NSString *content = [[entry objectForKey:@"link"] valueForKey:@"href"];
        NSLog(@"%@, %@", title, content);           // my title, my content
    }
}

// XML example
// - interface 에 xml parser delegate 선언 및 NSXmlParser 멤버 변수 추가  
@interface Crawler <NSXMLParserDelegate> {
    NSXMLParser *_xmlParser;
    NSMutableString *_currentXmlValue;
          …
}

//- 초기화 및 delegate를 나 자신으로 지정 
- (void) init 
{
    …
    _xmlParser = [[NSXMLParseralloc] init];
    _xmlParser.delegate = self;
}
     
//- parse 시작 
- (void) startXmlParse(NSData *receivedData)
{
     bool isParse = [_xmlParserinitWithData:receivedData];
    if (isParse)
        [_xmlParser parse];
 }  

// - delegate에 선언된 함수들 구현 
#pragma mark - xml parsing
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName 
                                        namespaceURI:(NSString *)namespaceURI 
                                       qualifiedName:(NSString *)qName 
                                          attributes:(NSDictionary *)attributeDict
{
     // <item> 태그 발견 시 파싱 준비 
     if ([elementName isEqualToString:@"item"]) {
         _xmlDataDictionary = [[NSMutableDictionaryalloc] init];

         if (!_currentXmlValue)
             _currentXmlValue = [[NSMutableStringalloc] init];
        else
             [_currentXmlValue setString:@""];
     }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
    [_currentXmlValue appendString:string];
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName 
                                      namespaceURI:(NSString *)namespaceURI 
                                     qualifiedName:(NSString *)qName
{    
    if ([elementName isEqualToString:@"item"]) {
        NSString *title = [_xmlDataDictionary valueForKey:@"title"];
        NSString *content = [_xmlDataDictionary valueForKey:@"description"];

         NSLog(@"%@, %@", title, content);
    } else {
        if (_currentXmlValue) {
            [_xmlDataDictionary setValue:[NSStringstringWithString:_currentXmlValue] forKey:elementName];
            [_currentXmlValue      setString:@""];
        }
    }
}


     HTML Parsing using THPPLE
     - http://m.search.daum.net/search?w=news&q=%EB%A5%98%ED%98%84%EC%A7%84&managed_type=recency&spacing=0 의 thumbnail, 제목, 요약 파싱 
           
     - (void) startHtmlParse(NSData *receivedData)
     {
        TFHpple *daumParser = [TFHpple hppleWithHTMLData:receivedData];
        NSString *daumXPathQueryStringForThumb = @"//*[@class='list_info']/li";
        NSArray *daumNewNodes = [daumParser searchWithXPathQuery:daumXPathQueryStringForThumb];
        
        for (TFHppleElement *daumElement in daumNewNodes) {
            RyuNewsObject *news = [[RyuNewsObjectalloc] init];
            TFHppleElement *thumbElem = [[[daumElement firstChildWithTagName:@"a" ]
                                                        firstChildWithClassName:@"mg_cont"]
                                                        firstChildWithClassName:@"wrap_thumb"];
            if (thumbElem) {
                NSString *thumbnailUrl = [[[thumbElem firstChildWithClassName:@"thumb"] firstChildWithTagName:@"img"] objectForKey:@"src"];
                NSLog(@"%@", thumbnailUrl);
            }
            TFHppleElement *contentElem = [[[[daumElement firstChildWithTagName:@"a"]
                                                        firstChildWithClassName:@"mg_cont"]
                                                        firstChildWithClassName:@"wrap_cont"]
                                                        firstChildWithClassName:@"cont"];
            if (contentElem) {
                NSString *title = [[[contentElem firstChildWithClassName:@"wrap_tit"] text] stripHtml];
                NSString *content = [[[contentElem firstChildWithClassName:@"desc f_db"] text] stripHtml];
                
                NSLog(@"%@, %@", titile, content);
            }
        }
     }