CannonML (Cannon Macro Language) provides a Flash shumps pattern generator represented in very very short text.
Nomltest on Flash is the best example what CannonML can do.
Below quite cryptic script is used here.
bs,4,,10bm5,360f10{i30vw90br5,360,2,2f4{i30v~ko}w10ay0.05}
You can try cannonML in this workbench application with tutorials(Press [Language] to change language).
More informations in the language reference(Japanese).
And anthor cannonML sample for whole stage, copy and paste it on workbench to start game.
The CannonML library is already installed in Wonderfl. You can check some code using CannonML.
CannonML - Wonderfl build flash online
Here's API Documentation.