OnAfterNewNode

After a new node has been created

OnBeforeNewNode

Before a new node is created

Continue

Test for continuation

OnAcceptToken

A token was accepted

OnBeginBranch

Begin of an option or a repeat

OnEndBranch

End of an option or a repeat

OnEnterProduction

Begin of a production

OnException

Occurrence of an error

OnExitProduction

End of a production

OnParserMessage

Message from the parser