avg-storyscript/libs/parser.js

Build-in Story Script System for AVG.js.

/**
 * Copyright 2016 Icemic Jia <bingfeng.web@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var ohm = require('ohm-js');
// var fs = require('fs');
var actions = require('../actions');
var contents = require('../ohm/bks.ohm');

var myGrammar = ohm.grammar(contents);
var mySemantics = myGrammar.createSemantics();
mySemantics.addOperation('parse', actions);

exports.parse = function (string) {
  var m = myGrammar.match(string);
  if (m.succeeded()) {
    return mySemantics(m).parse();
  } else {
    throw m.message;
  }
}