esther-medina-quintero-parser-nearley/use-ambiguous.js

Lab for language processors

#!/usr/bin/env node

const nearley = require("nearley");
const grammar = require("./ambiguous.js");

const tests = (process.argv.length > 2) ? process.argv.slice(2) : [
  // "3\n - /* comment */ 2\n-\n1",
  "2-2/2"
];

try {
  for (let expression of tests) {
    const parser = new nearley.Parser(nearley.Grammar.fromCompiled(grammar));
    parser.feed(expression);
    console.log(parser.results);
  }
} catch (e) {
  console.error("Found an error: " + e.message);
}