fix(data.convert): allow dots in json properties

Current function findValueInJson does not allow dots in properties as it always processes them as path for inner objects.
Fix checks first if property exists in json object and only then processes the name as path

Close #14

spec/data-spec.js

@@ -102,25 +102,28 @@ describe("Data", () => {
 						"112": ["600"],
 						"223": [{"224": "100"}],
 						"334": [[], [{"335": "300"}]],
-						"556": {"557": {"558": ["1000"]}}
+						"556": {"557": {"558": ["1000"]}},
+ 						"778.889" : "700"
 					}, {
 						"date": "2014-06-04",
 						"443": "1000",
 						"112": ["700"],
 						"223": [{"224": "200"}],
-						"556": {"557": {"558": ["2000"]}}
+						"556": {"557": {"558": ["2000"]}},
+						"778.889" : "300"
 					}, {
 						"date": "2014-06-05",
 						"995": {"996": "1000"},
 						"112": ["800"],
 						"223": [{"224": "300"}],
 						"443": "5000",
 						"334": [[], [{"335": "500"}]],
-						"556": {"557": {"558": ["3000"]}}
+						"556": {"557": {"558": ["3000"]}},
+ 						"778.889" : "800"
 					}],
 					keys: {
 						x: "date",
-						value: ["443", "995.996", "112[0]", "223[0].224", "334[1][0].335", "556.557.558[0]"]
+						value: ["443", "995.996", "112[0]", "223[0].224", "334[1][0].335", "556.557.558[0]", "778.889"]
 					}
 				},
 				axis: {
@@ -140,7 +143,8 @@ describe("Data", () => {
 				112: [354, 347, 340],
 				223: [391, 383, 376],
 				334: [376, 398, 362],
-				556: [326, 253, 181]
+				556: [326, 253, 181],
+				"778.889": [347, 376, 340]
 			};
 
 			d3SelectAll(".bb-circles-443 .bb-circle").each(function(d, i) {
@@ -185,6 +189,13 @@ describe("Data", () => {
 				expect(+circle.attr("cx")).to.be.closeTo(expectedCx[i], 0);
 				expect(+circle.attr("cy")).to.be.closeTo(expectedCy[556][i], 1);
 			});
+
+			d3SelectAll(".bb-circles-778-889 .bb-circle").each(function (d, i) {
+				const circle = d3Select(this);
+
+				expect(+circle.attr("cx")).to.be.closeTo(expectedCx[i], 0);
+				expect(+circle.attr("cy")).to.be.closeTo(expectedCy["778.889"][i], 1);
+			});
 		});
 	});
 

src/data/data.convert.js

@@ -115,6 +115,10 @@ extend(ChartInternal.prototype, {
 	},
 
 	findValueInJson(object, path) {
+		if (object[path] !== undefined) {
+			return object[path];
+		}
+
 		const convertedPath = path.replace(/\[(\w+)\]/g, ".$1"); // convert indexes to properties (replace [] with .)
 		const pathArray = convertedPath.replace(/^\./, "").split("."); // strip a leading dot
 		let target = object;