How lookaheads are propagated in "channel" method of building LALR parser?
- by greenoldman
The method is described in Dragon Book, however I read about it in ""Parsing Techniques" by D.Grune and C.J.H.Jacobs".
I start from my understanding of building channels for NFA:
channels are built once, they are like water channels with current
you "drop" lookahead symbols in right places (sources) of the channel, and they propagate with…