Function validCortex

test/utils.ts:331–335

(s: string)

  const [value, errors] = parseEpsil(s);
  if (errors && errors.length > 0) return formatError(errors);
  return strip(value);
}

export function invalidEpsil(s: string): Expression | null {
  const [value, errors] = parseEpsil(s);
  if (errors && errors.length > 0) return formatError(errors);
  return ['UnexpectedSuccess', strip(value as Expression) ?? 'Missing'];
}