Problems parsing XML using NSXMLParser

Question

I'm having strange problems parsing (apparently) correct XML code!

The xml parsed is:

<?xml version="1.0" encoding="UTF-8" ?>
<root>
<results>
<file id="0" name="   Linux Ubuntu.rar                                                                  700.64     2" size="700" disp="2"/>
<file id="1" name="   [Soft] Sistema operativo Linux. Live CD Distro Ubuntu-5.04-live-i386.iso          624.926     4" size="5" disp="4"/>
<file id="2" name="   ubuntu-9.04-server-i386.iso                                                       577.220     2" size="9" disp="2"/>
<file id="3" name="   virtualbox-3.1_3.1.2-56127_Ubuntu_karmic_amd64.deb                                 43.578     1" size="3" disp="1"/>
<file id="4" name="   [APP-ITA].UBUNTU.LINUX.iso                                                        586.822     2" size="586" disp="2"/>
<file id="5" name="   Ubuntu linux 2007.iso                                                             700.446     1" size="700" disp="1"/>
<file id="6" name="   Installare aMule Adunanza + Liste Server + Liste Nodi su Ubuntu Gutsy [Fastweb      0.72     5" size="0" disp="5"/>
<file id="7" name="   - Guida Per Linux Ubuntu 7.03 Facile Da Usare!!!!!!!La Prima In Ita.rar           731.351     3" size="7" disp="3"/>
<file id="8" name="   Ubuntu Hacks - Tips and Tools for Exploring, Using, and Tuning Linux (O'Reilly,     3.494     1" size="3" disp="1"/>
<file id="9" name="   Linux-ubuntu-8.04.1-desktop-i386.iso                                              694.498     3" size="8" disp="3"/>
<file id="10" name="   [MANUALE] Ubuntu Linux - Computer Magazine.pdf                                     86.992     2" size="86" disp="2"/>
<file id="11" name="   (Ebook - Ita - Software) Ubuntu - Desktop Guide.pdf                                 0.686     3" size="0" disp="3"/>
<file id="12" name="   Installare Amule Adunanza In Ubuntu.rar                                             0.25     6" size="0" disp="6"/>
<file id="13" name="   UBUNTU LINUX [ITA].PDF                                                              0.536     62" size="0" disp="62"/>
<file id="14" name="   Comandi Fondamentali Ubuntu.rtf                                                     0.67     4" size="0" disp="4"/>
<file id="15" name="   ubuntu Guida.tar                                                                    0.160     1" size="0" disp="1"/>
<file id="16" name="   ubuntu-remix-italiano-8.10.iso                                                    702.720     1" size="8" disp="1"/>
</results>
</root>

NSXMLParser gives me the following error:

2010-01-13 20:23:22.500 iMule[1419:20b] Error 65, Description: (null), Line: 13, Column: 24
2010-01-13 20:23:22.516 iMule[1419:20b] Error 4, Description: (null), Line: 1, Column: 1

The funny thing is that, if i parse these lines singularly i have no problems, the parser dosent fuss at all!

My parsing code is:

    // DELEGATE XML PARSER

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName     namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName   attributes:(NSDictionary *)attributeDict{
    if([elementName isEqualToString:@"downloads"] || [elementName isEqualToString:@"results"]){
    NSLog(@"starting or downloads or results");
    if(xmlArray){
        xmlArray= nil;
    }
    self.xmlArray= [[NSMutableArray alloc] init];
    if([elementName isEqualToString:@"results"]){
        [self.results_controller.activity startAnimating];
    }
    if([elementName isEqualToString:@"downloads"]){
        [self.downloads_Controller.activity startAnimating];
    }
}
else if([elementName isEqualToString:@"file"]){
    NSLog(@"found file...");
    [self.xmlArray addObject:attributeDict];
}
}

 - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
NSLog(elementName);
if([elementName isEqualToString:@"downloads"] || [elementName isEqualToString:@"results"]){
    if([elementName isEqualToString:@"downloads"]){
        NSLog(@"downloads found...  reloading table");
        self.downloads_Controller.downloads= xmlArray;
        [self.downloads_Controller.tableView reloadData];
        [self.downloads_Controller.activity stopAnimating];
    }
    else if([elementName isEqualToString:@"results"]){
        NSLog(@"results found... reloading table");
        self.results_controller.results= xmlArray;
//          NSLog(@"xmlarray: %@ and results: %@", xmlArray, self.results_controller.results);
        [self.results_controller.tableView reloadData];
        [self.results_controller.activity stopAnimating];
    }
}
else if([elementName isEqualToString:@"error"]){
    UIAlertView *alert= [[UIAlertView alloc] initWithTitle:@"Error" message:@"aMule dosent seem to be on" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [alert show];
    [alert release];
}
}

- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError{
NSLog(@"Error %i, Description: %@, Line: %i, Column: %i", [parseError code],
      [[parser parserError] localizedDescription], [parser lineNumber],
      [parser columnNumber]);
 }

- (void)parser:(NSXMLParser *)parser validationErrorOccurred:(NSError *)validError{
NSLog(@"valid: %@", validError);
}


// END DELEGATES XML PARSER

Does someone have a clue of what it could be?

Thanks

Answer 1

The apostrophe in O'Reilly?

Answer 2

Did you look up the error codes?

• NSXMLParserSpaceRequiredError= 65,
• NSXMLParserInternalError= 1,

Looks like the XML parser thinks some space is required at the 24th column of the 13th line.

Could you post the XML data on a pastebin so we can look at the raw data? I suspect that either you or Stack Overflow changed the data in some way (perhaps for formatting reasons) and this threw off the line/column numbers from what NSXMLParser is reporting.