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PONSXMLParser with encoded Data in String
 

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  1. PONSXMLParser with encoded Data in String
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    <p>I want to program a NSXMLParser and I have the data for this lying in a NSString (encoded). </p> <p>If I put the NSString to NSLog it gives me the right lines I need. But when I want to start the Parser with the data from that NSString it doesn't start.</p> <p>Here is my code:</p> <p>The interface:</p> <pre><code>@interface StundenplanParser () &lt;NSXMLParserDelegate&gt; @end </code></pre> <p>The method that gets called from the ViewController:</p> <pre><code> -(void)parserStart { // Create your request string with parameter name as defined in PHP file NSString *myRequestString = [NSString stringWithFormat:@"matr=%@&amp;pressme=%@",@"33886",@"S T A R T"]; // Create Data from request NSData *myRequestData = [NSData dataWithBytes: [myRequestString UTF8String] length: [myRequestString length]]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString: @"http://www2.htw-dresden.de/~rawa/cgi-bin/auf/raiplan_app.php"]]; // set Request Type [request setHTTPMethod: @"POST"]; // Set content-type [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"]; // Set Request Body [request setHTTPBody: myRequestData]; // Now send a request and get Response NSData *returnData = [NSURLConnection sendSynchronousRequest: request returningResponse: nil error: nil]; // Log Response NSString *response = [[NSString alloc] initWithBytes:[returnData bytes] length:[returnData length] encoding:NSASCIIStringEncoding]; NSLog(@"Response:%@\n",[response substringToIndex:64]); // If I would use NSASCIIStringEncoding in the following line, the data would be nil NSData *data = [response dataUsingEncoding:NSUTF8StringEncoding]; NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data]; if (!parser) NSLog(@"Error with parser"); else NSLog(@"parser successfully initialised"); [parser setDelegate:self]; [parser parse]; } </code></pre> <p>NOTE: In my response (NSString*) is the code that I want to parse. If I print it out using NSLog I see the source code of the website..</p> <p>Now I want to show only the elements the NSXMLParser found with this:</p> <pre><code>-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { NSLog(@"found element: %@", elementName); } </code></pre> <p>I hope it's not a problem that I left the url in the code. I just want to parse the schedule from my university.</p> <p>I hope you understand what I mean and you could help me.</p> <p>EDIT: My Problem is not that I don't get the XML. My Problem is that the parser won't start.. I edited the code.</p> <p>EDIT2: The output from the response is:</p> <pre><code>2013-11-18 23:52:16.008 University[17210:70b] Response: &lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN </code></pre> <p>So it seems like it worked, but the problem is the encoding of this into a NSData instance that I need to initialize my parser.</p> <p>EDIT3:</p> <p>After implementing the parser:parseErrorOccurred I got the following error in the Console:</p> <pre><code>2013-11-19 08:58:26.190 University[17458:70b] ERROR while parsing: The operation couldn’t be completed. (NSXMLParserErrorDomain error 65.) </code></pre>
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