jsongraph/lib/expression.js

powerful minimalist graph/dataflow programming based on jsonschema references (nodejs/coffeescript)

// Generated by CoffeeScript 1.9.3
(function() {
  var expr;

  expr = require('property-expr');

  module.exports = (function(me) {
    me.__parse = function(k, data) {
      var integer, itemstr;
      if (typeof k !== 'string') {
        return k;
      }
      integer = false;
      return itemstr = k.replace(/(\{)(.*?)(\})/g, function($0, $1, $2) {
        var err, result;
        if ($2 == null) {
          return String('{}');
        }
        if (data == null) {
          return '';
        }
        result = '';
        if ((data[$2] != null) && typeof data[$2] === 'function') {
          result = data[$2]();
        } else {
          if (data[$2] != null) {
            result = data[$2];
          } else {
            try {
              result = expr.getter($2)(data);
            } catch (_error) {
              err = _error;
              result = '';
            }
          }
        }
        me.__parse(result);
        return result;
      });
    };
    me.parse = function(json, data) {
      var k, nk, nv, v;
      if (typeof json === "object") {
        for (k in json) {
          v = json[k];
          nk = me.__parse(k, data);
          nv = me.__parse(v, data);
          if (typeof nv === 'object') {
            nv = me.parse(nv, data);
          }
          if (nv != null) {
            json[nk] = nv;
          }
          if (nk !== k) {
            delete json[k];
          }
        }
      }
      return json;
    };
    return me;
  })({});

}).call(this);