The Extension class provides an interface for calling an extension from a template file.
The feature provider class.
The Headless class provides helpers for the headless mode.
The PatternAssembly class contains all methods to assemble regular expressions patterns.
The Pipe class handles the chain of processes to manipulate variable values.
The Runtime class handles all variables generated during runtime.
The Toolbox class holds all methods to be used within the template files.
The View class is responsible for rendering the requeste page.