if you explain what you want to happen and which you cannot do in what we would consider the "normal" way we might be better able to understand and help
Perhaps the problem in the lack of clarity of my explanation (though I think I posed exactly my intent) has been the fact that the feature that I am looking to implement in Arduino is somewhat usual in dealing with UART's with C language for quick serial reception in microcontrollers; I presume the idea behind this was not caught by many people here, but I'll rephrase: I was searching for a way to manage by myself actions in the happening of serial interrupts, as it is possible to do in C programs; Interrupt-driven receiving in the optic of a programmer person, is an event that interrupts any execution - including delays! - and as a rule should have an immediate treatment (it is up to the programmer to follow this good practice), such as parsing a frame on the fly, that is, treat the incomming bytes from Serial as they arrive. Neither the SerialEvent() nor the EventManager library don't do this.
Just to share with those who as me are still in the same search I found something promising, an alternative library for the standard Arduino Serial that I will make tests:
The code is all open source. You are welcome to rewrite the existing serial interrupt handlers to do anything you like.
Thanks for the attempt, but it was not useful, because if you reread the original post I just asked if anyone knew any functional implementation, never said that I would do it myself. If you do not have this information, you do not have to participate criticizing my search, which apparently seems to have been successful, and I hope others will take advantage of the information posted above, thanks.