[fpc-pascal]method pointers, design patterns, OP idioms etc.

[Marco van de Voort]

> > particular I'm looking for the observer pattern implementation without using 
> > interfaces.
> 
> This one is more tricky. Can't help you there.

I wouldn't do this anyway, since the FPC version in development already supports
interfaces. (and is generally usable, though it can be broken from time to time.
So always back up your last working snapshot)