Disambiguation Filters

As part of my action to provide use cases for the two negative operators 
(A-B and !A as we currently notate them), I have been talking to some 
researchers who have implemented them. I found one who has implemented both 
in GLL. I forgot to ask him about differences, but I will get back to him. 
He seems to have implemented both a forward and backward not operator, but 
from the brief look I had at it, I couldn;t see the benefits of the 
directionality. I think one is enough.

I found a useful paper that addresses the issue, that is worth reading:

 Disambiguation Filters for Scannerless
Generalized LR Parsers
 
https://ics-archive.science.uu.nl/research/techreps/repo/CS-2001/2001-39.pdf


Best wishes,

Steven

Received on Tuesday, 29 April 2025 10:21:21 UTC