I am spending this week in Lille at the Deep into Smalltalk one-week school organized by INRIA.
Yesterday, I had the pleasure of giving a 3-hour tutorial on PetitParser. PetitParser is the excellent framework built by Lukas Renggli that enables you to build/debug/test custom parsers.
PetitParser is one of the core components of Moose and it is shipped with the Moose Suite distribution.
You can find below the slides I used during the tutorial.