expressions.js

// Generated by CoffeeScript 1.9.3
(function() {
  var data, graph, jg, json;

  jg = require('jsongraph');

  json = {
    graph: {
      a: {
        value: "{book.category[0].text}"
      },
      b: {
        value: "{foo}",
        value_int: {
          "$ref": "#/data/book/code"
        },
        value_str: {
          "$ref": "#/data/book/category[0].text"
        }
      }
    }
  };

  data = {
    book: {
      code: 1,
      category: [
        {
          text: "fairytales stories"
        }
      ]
    },
    foo: function() {
      return ++this.book.code;
    }
  };

  jg.opts.verbose = 2;

  graph = jg.init(json);

  graph.evaluate(data);

  graph.dump();

  data.book.category[0].text = "foo";

  graph.set('a', graph.evaluate(data, {
    graph: graph.get('a')
  }));

  graph.dump();

  graph.evaluate(data, {
    parsers: ["ref", "expr"]
  });

  graph.dump();

}).call(this);