PatternReplaceFilter behaviour

Hi,

I don't recommend you to use the TOTO nor for removing tokens nor for
replacing tokens by other tokens. Filters exist just for that purpose, for
example for removing tokens TATA and TITI and for replacing tokens TUTU.

In my opinion, it should be used only when you "need" the power of pattern
matching for applying transformations to tokens.

Regards

Benjamin

--