Question

This the part of HTML from which I am trying to retrieve an image.

div class="image">
              <a href="http://www.web.com/EN/105/News/10228/"><img src="/images/cache/360x295/crop/images%7Ccms-image-000007796.jpg" width="360" height="295" alt=" (photo: )" /></a>
                         </div>

I can separately get “href” and “img src” values but none of them are the link that would let me reach the image. The valid link would be http://www.web.com plus img src value. I thought to append the string: http://www.web.com to img src but couldn’t figure out how to do it and not sure that this is the right approach. So, what I am trying to get is http://www.web.com/images/cache/360x295/crop/images%7Ccms-image-000007796.jpg

This is my code through which I am parsing the HTML data:

-(void) fethchData

{
    NSError *error = nil;
    NSURL *url=[[NSURL alloc] initWithString:@"http://www.web.com/"];
    NSString *strin=[[NSString alloc] initWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];

    HTMLParser *parser = [[HTMLParser alloc] initWithString:strin error:&error];

    if (error) {
        NSLog(@"Error: %@", error);
        return;
    }

HTMLNode *bodyNode = [parser body];

NSArray *imageNodes = [bodyNode findChildTags:@"div"];

    for (HTMLNode *imageNode in imageNodes) {
        if ([[imageNode getAttributeNamed:@"class"] isEqualToString:@"image"]) {
            HTMLNode *aNode = [imageNode firstChild];
            HTMLNode *imgNode = [aNode nextSibling];
            HTMLNode *imNode = [imgNode firstChild];
             NSURL* imageURL = [NSURL URLWithString:[imNode getAttributeNamed:@"src"] relativeToURL:url];
        NSLog(@"%@", imageURL);

        } 
    }



}

This is the output: /images/cache/360x295/crop/images%7Ccms-image-000007653.jpg -- http://www.web.ge/

I need to see http://www.web.ge/ first and then the rest.

Answer 1

Use:

NSURL* imageURL = [NSURL URLWithString:[imNode getAttributeNamed:@"src"] relativeToURL:theURLFromWhichYouDownloadedThisHTML];

Update: if you feel you must have an absolute URL object, you could follow the above with:

imageURL = [imageURL absoluteURL];