Question

I have many HTML strings (news items from google reader) to process. Majorly what I need to do is to retrieve all img tags from the HTMLs.

Can anyone tell me a most efficient way to do that?

Thanks

Also, what if I need to retrieve all tags as well as

tags? Any fastest way to retrieve both or even more tags in one run?

Thanks

Answer 1

Try libtidy + NSXMLParser:

 doc = [[NSXMLDocument alloc] 
           initWithContentsOfURL:url
                         options:(NSXMLNodePreserveWhitespace|NSXMLNodePreserveCDATA)
                           error:&err];
 if (!doc) {
     doc = [[NSXMLDocument alloc] 
           initWithContentsOfURL:url
                         options:NSXMLDocumentTidyHTML
                           error:&err];
 }

From the doc, NSXMLDocumentTidyHTML: Formats HTML into valid XHTML during processing of the document.

If this doesn’t work, you can try loading the HTML source into an UIWebView and use javascript to access the DOM.