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cfg-first-follow
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Calculate FIRST
and FOLLOW
set of a Context Free Grammar
symbol.
S -> ACB | Cbb | Ba
A -> da | BC
B -> g | Є
C -> h | Є
const grammar: ContextFreeGrammar = {
S: [
['A', 'C', 'B'],
['C', 'b', 'b'],
['B', 'a'],
],
A: [
['d', 'a'],
['B', 'C'],
],
B: [['g'], null],
C: [['h'], null],
};
import { Parser, type ContextFreeGrammar } from 'cfg-first-follow';
const grammar: ContextFreeGrammar = {
S: [
['A', 'C', 'B'],
['C', 'b', 'b'],
['B', 'a'],
],
A: [
['d', 'a'],
['B', 'C'],
],
B: [['g'], null],
C: [['h'], null],
};
const parser = new Parser(grammar);
const firstSetOfS = parser.first('S');
console.log(firstSetOfS); // Set(6) { 'd', 'g', 'h', null, 'b', 'a' }
TODO
FAQs
Calculate FIRST and FOLLOW set of a Context Free Grammar symbol
The npm package cfg-first-follow receives a total of 1 weekly downloads. As such, cfg-first-follow popularity was classified as not popular.
We found that cfg-first-follow demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Streamline your login process and enhance security by enabling Single Sign-On (SSO) on the Socket platform, now available for all customers on the Enterprise plan, supporting 20+ identity providers.
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