CODEWITHSUNDEEP
iphoneobjective-cios
sach
sach

Reputation: 1069

Checking for proper xml before parsing in NSXMLParser

If I give non-xml string (or junk xml) to NSXMLParser it will result in crash. How validate xml before passing it to NSXMLParser?

Upvotes: 0

Views: 1760

Answers (3)

Nitish
Nitish

Reputation: 14113

You need to implement following delegate methods for ParseOperation delegate : 

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response  


- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data  

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error

- (void)connectionDidFinishLoading:(NSURLConnection *)connection

Upvotes: 0

Fran Sevillano
Fran Sevillano

Reputation: 8163

it will not crash, if NSXMLParser finds an error, it will let you know through its delegate, either by invoking parser:validationErrorOccurred: or – parser:parseErrorOccurred:. You can use the - (NSError *)parserError in NSXMLParser to determine the error wich caused the parsing to terminate.

I hope it helps you!

Cheers

Upvotes: 3

Jhaliya - Praveen Sharma
Jhaliya - Praveen Sharma

Reputation: 31722

Having a validating parser in place can reduce the required code to parse XML a lot, Check the the blog post IPHONE: LIBXML2 & RELAX NG VALIDATION

http://blog.mro.name/2010/05/iphone-libxml2-relax-ng-validation/

Upvotes: 0

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