/* *************************************************************************************
* copyright: Copyright (c) 2021 Lowell D. Thomas, all rights reserved
* license: BSD-2-Clause (https://opensource.org/licenses/BSD-2-Clause)
* ********************************************************************************* */Demonstration for the AND(&) syntactic predicate operator.
This is the classic example of a grammar
which can be represented with syntactic predicates, but not
with a strictly context-free grammar.
It is the grammar for anbncn.
(function and() {
const setup = require('./setup');
const grammar = new (require('./anbncn'))();
const input = 'aaaabbbbcccc';
const callbacks = [];
console.log(`the grammar:`);
console.log(grammar.toString());
console.log(`the input string:`);
console.log(input);
callbacks.anbn = true;
callbacks.anbncn = true;
callbacks.bncn = true;
callbacks.consumeas = true;
callbacks.prefix = true;
setup(grammar, callbacks, input);
})();