@parser-generator/grammar-interpreter/lib/esm/__tests__/intergration.test.js

A Parser Generator that supports LL,SLR,LR1,LALR

import { GrammarLexer, EvalVisitor, parse } from "../interp";
import { getLR1ParsingTable } from "@parser-generator/core";
describe(`Test`, () => {
    let g = `
	#TOKEN_PROTOTYPES
	STRING,NUMBER,BOOLEAN

	#GRAMMAR
	S -> json;
	factor -> array | obj | STRING | NUMBER | BOOLEAN <% (e)=> new FactorNode(e) %>;
	entry -> STRING ':' factor <% (e)=>new EntryNode(e) %>;
	entries -> entry ',' entries | entry | entry ','  <% (e)=>new EntriesNode(e) %>;
	obj -> '{' entries '}' | '{' entries '}' <% (e)=>new ObjectNode(e) %>;
	items -> factor ',' items | factor | factor ',' <% (e)=>new ItemsNode(e) %>;
	array -> '[' items ']' | '[' items ']' <% (e)=>new ArrayNode(e) %>;
	json -> factor <% (e)=>new JSONNode(e) %>;
	`;
    let p = parse(new GrammarLexer(g));
    let v = new EvalVisitor({ parser: "LR1" });
    p.accpet(v);
    let grammar = v.grammar;
    getLR1ParsingTable(grammar);
});
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