Function outcome

docs/mathnet/scripts/check-corpus.ts:22–37

(input: string)

 */
import { ComputeEngine } from '../../../src/compute-engine';
import * as fs from 'fs';
import * as path from 'path';

const scriptDir = path.dirname(process.argv[1]);
const corpusPath = path.join(scriptDir, '..', 'parser-test-cases.json');
const corpus = JSON.parse(fs.readFileSync(corpusPath, 'utf8'));
const showFailures = process.argv.includes('--failures');
const update = process.argv.includes('--update');

/** Current parser outcome: 'clean', 'throw', or the first error code. */
function outcome(input: string): string {
  // A fresh engine per input: the engine narrows free-symbol types from
  // usage persistently, so a shared engine lets one fragment's inference
  // contaminate another's parse (e.g. an early `A \setminus B` narrows `A`
  // to a set and breaks a later `\frac{AB^2}{PC}`). Fragments are
  // independent inputs; measure them independently.
  const ce = new ComputeEngine();
  try {
    const expr = ce.parse(input);