Simple libxml2 HTML parsing example, using Objective-c, Xcode, and HTMLparser.h

by

I used Ben Reeves’ HTML Parser to achieve what I wanted:

NSError *error = nil;
NSString *html = 
    @"<ul>"
        "<li><input type="image" name="input1" value="string1value" /></li>"
        "<li><input type="image" name="input2" value="string2value" /></li>"
    "</ul>"
    "<span class="spantext"><b>Hello World 1</b></span>"
    "<span class="spantext"><b>Hello World 2</b></span>";
HTMLParser *parser = [[HTMLParser alloc] initWithString:html error:&error];

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

HTMLNode *bodyNode = [parser body];

NSArray *inputNodes = [bodyNode findChildTags:@"input"];

for (HTMLNode *inputNode in inputNodes) {
    if ([[inputNode getAttributeNamed:@"name"] isEqualToString:@"input2"]) {
        NSLog(@"%@", [inputNode getAttributeNamed:@"value"]); //Answer to first question
    }
}

NSArray *spanNodes = [bodyNode findChildTags:@"span"];

for (HTMLNode *spanNode in spanNodes) {
    if ([[spanNode getAttributeNamed:@"class"] isEqualToString:@"spantext"]) {
        NSLog(@"%@", [spanNode allContents]); //Answer to second question
    }
}

[parser release];

More Related Contents:

  1. libxml/tree.h no such file or directory
  2. How do I turn an int into a float? [closed]
  3. Xcode build failure “Undefined symbols for architecture x86_64”
  4. presentViewController: crash on iOS
  5. applications expected to have a root view controller console
  6. Private Methods in Objective-C, in Xcode 4.3 I no longer need to declare them in my implementation file ?
  7. Xcode 4 “Clean” vs. “Clean Build Folder”
  8. How do I weak link frameworks on Xcode 4?
  9. Xcode/LLDB: How to get information about an exception that was just thrown?
  10. error: writable atomic property cannot pair a synthesized setter/getter with a user defined setter/getter
  11. ‘+entityForName: nil is not a legal NSManagedObjectContext parameter – Core Data
  12. iOS Screenshot part of the screen
  13. Objective-C #import loop
  14. Play Audio iOS Objective-C
  15. Send notification to Mountain lion notification center
  16. Animate infinite scrolling of an image in a seamless loop
  17. Create a thumbnail or image of an AVPlayer at current time
  18. disable autorotate on a single UIViewController in iOS6
  19. Front most window using CGWindowListCopyWindowInfo
  20. What is the best way to unit test Objective-C code?
  21. Why does an NSInteger variable have to be cast to long when used as a format argument?
  22. Is there a way for Interface Builder to render IBDesignable views which don’t override drawRect:
  23. How to set Xcode plugin for code auto formatting [closed]
  24. Core Data unique attributes
  25. Failed to import bridging header
  26. How to enable the new Objective-C object literals on iOS?
  27. Code coverage not showing results using Xcode + gcov
  28. iOS: store two NSMutableArray in a .plist file
  29. IBOutletCollection set ordering in Interface Builder
  30. Give warning when [super method] is not called

Leave a Comment