This is a very short Processing.org program that simply pulls news headlines from the NYT and puts them into an array.

XML Demo.pde

/*
XML exploration v.01
Steve Lambert
April 20, 2017

This is a very short program that simply pulls news headlines from the NYT and puts them 
into an array.

I'd never done this before yesterday. Granted, I had some previous knowledge of RSS/XML,
but I decided just to see how far I could get in 15 minutes of research and experimenting
and then see where I was at. In the end it took another 10 before I had what I wanted.

I gleaned from these sources:

1. The Processing Reference on XML
https://processing.org/reference/XML.html
https://processing.org/reference/XML_getChildren_.html
https://processing.org/reference/XML_getChild_.html

2. Shiffman on YouTube - 13.6: XML and JSON - Processing Tutorial
This is, as always, a good walkthrough of some of the basics. Go slow.
https://www.youtube.com/watch?v=rqROpUNb2aY


LET'S DO IT!
*/


// These are our variables

// We're making a variable for all the text in the XML feed
XML xml;
// and this is the URL we're pulling from. 
String url = "http://rss.nytimes.com/services/xml/rss/nyt/Golf.xml"; 
/* Most sites have RSS/XML feeds. Here's a list of all the NYT ones, for example:
   http://www.nytimes.com/services/xml/rss/index.html
   Another example, my personal site's is:
   https://visitsteve.com/feed/
   And here's one for a Tumblr site:
   http://liartownusa.tumblr.com/rss
   */

void setup() {
  xml = loadXML(url); // go get the file from the internet

  XML[] items = xml.getChildren("channel/item/title");
  /* the line above goes through the all the text in the XML file, finds all the <title> 
     tags that are nested under <item> tags, that are nested under the <channel> tag. So 
     to create a condensed example of what might appear in the actual file...
     
     <channel>
       <item>
         <title>
            On Golf: For L.P.G.A. Commissioner Mike Whan, Politics Become Part of the Game
         </title>
       </item>
       <item>
         <title>
            Review: In ‘Tommy’s Honour,’ a Family Feud on and Off the Green
         </title>
       </item>

  */
  
  
  // And the following loop, using getContent() just goes through the array and pulls 
  // what's between the <title></title> tags and prints it in the console...
  
  for (int i = 0; i < items.length; i++) {
    println(items[i].getContent()); 
  }
 
  // From here, you can make magic using live feeds from the internet.
  
}