nff.rs

A program that calculates the nullable, first, and follow sets from a specified grammar

Installation and Usage

Github

git clone https://github.com/rmsthebest/nullable-first-follow cd nullable-first-follow cargo run --release <path to grammar file>

Cargo

cargo install nff nff <path to grammar file>

Grammar

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