A program that calculates the nullable, first, and follow sets from a specified grammar
git clone https://github.com/rmsthebest/nullable-first-follow
cd nullable-first-follow
cargo run --release -- <path to grammar file>
cargo install nff
nff <path to grammar file>
nff only supports one format of grammar
Nonterminals are one uppercase character
Terminals are one lowercase character
Null is 0
A -> B a
A -> 0
B -> A b