Quote of the day:
Homer: Ooh, look at this one! The Hammer of Thor! (Reading) "It
will send your pins to ... Valhalla?" Lisa?

Lisa: Valhalla is where vikings go when they die.

Homer: Ooh, that's some ball.

The Telltale Head
 

December 2005

Monthly Archive

Fri
23
Dec '05

Going to Arizona

Posted by Deling Ren under Outdoor
No Comments 

Looking forward to a trip to the Grand Canyon and Havasupai. We might stay in San Francisco for one day on the way back.

Sat
3
Dec '05

A DSEL on regular expression matching in Haskell

Posted by Deling Ren under Lambda
No Comments 

One strong point of PERL is regular expression matching. I am thinking about implementing a domain specific embeded language in Haskell for the same purpose. Inspired more or less by Parsec and after one hour of coding, I implemented such a simple matcher. It currently only matches a regular expression against a strings, tells us if it matches or not. It lacks the ability of binding certain parts of the string (which might be more useful). An example:

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