Interesting article about Google App Engine

Here is a very nice article by Dion Hinchcliffe. In this post, Dion summarizes the offerings and the missing pieces of GAE. If you are interested in cloud computing, specially GAE it is worth reading.

Using google-code-prettify to highlight code in web page

I wanted to highlight my code in blogger and stumbled upon this from google. It also nicely formats the code. Henceforth, I am going to use prettify and not this. Here are the steps to do it.

- Edit your template in the dashboard (Layout->Edit HTML, see pic below)



- Include these two lines in the head tag.

< link href="http://google-code-prettify.googlecode.com/svn/trunk/src/prettify.css" type="text/css" rel="stylesheet">
< script type="text/javascript" src="http://google-code-prettify.googlecode.com/svn/trunk/src/prettify.js" > </script>

- Change the body tag to include onload='prettyPrint()'

< body onload='prettyPrint()'>

- Save the template.

- Now to highlight your code do this

< pre class="prettyprint">
... # Code goes here
</pre>

Thats it. Here is an example:

public class Factorial {

 public static int getFactorial(int input) {
  int fact = 1;
  if (input==0 || input==1) return fact;
  if (input < 0) fail("Provide argument >= 0");
  for (int i = 2; i <= input; i++) {
   fact = fact*i;
  }
  return fact;
 }
 
 public static void fail(String exception) throws 
                          IllegalArgumentException{
  throw new IllegalArgumentException(exception); 
 }

}