feat(Parser): allow equals (=) sign for label-value separator

Closes /issues/22

Author: leon0399

Diff for: src/msgAggregatorWorker.test.ts

@@ -81,44 +81,49 @@ describe("Parsing data", () => {
           );
         });
 
-        test("labeled", () => {
-          const messages = [
-            `0${trailingFieldDelimiter}${recordDelimiter}`,
-            `label_1:1${fieldDelimiter}label_2:2${trailingFieldDelimiter}${recordDelimiter}`,
-            `label_1:3${fieldDelimiter}label_2:4${trailingFieldDelimiter}${recordDelimiter}`,
-          ];
-
-          const assertion = {
-            datasetNames: ["label_1", "label_2"],
-            parsedLines: [
-              { label_1: 1, label_2: 2 },
-              { label_1: 3, label_2: 4 },
-            ],
-          };
-
-          expect(messageAggregator.parseSerialMessages(messages)).toEqual(
-            assertion
-          );
-        });
-
-        test("labeled padded", () => {
-          const messages = [
-            `0${trailingFieldDelimiter}${recordDelimiter}`,
-            `label_1:    1${fieldDelimiter}label_2:  20${trailingFieldDelimiter}${recordDelimiter}`,
-            `label_1:  300${fieldDelimiter}label_2:4000${trailingFieldDelimiter}${recordDelimiter}`,
-          ];
-
-          const assertion = {
-            datasetNames: ["label_1", "label_2"],
-            parsedLines: [
-              { label_1: 1, label_2: 20 },
-              { label_1: 300, label_2: 4000 },
-            ],
-          };
-
-          expect(messageAggregator.parseSerialMessages(messages)).toEqual(
-            assertion
-          );
+        describe.each([
+          ["colon", ":"],
+          ["equals", "="],
+        ])("%s label delimiter", (_, labelDelimiter) => {
+          test("labeled", () => {
+            const messages = [
+              `0${trailingFieldDelimiter}${recordDelimiter}`,
+              `label_1${labelDelimiter}1${fieldDelimiter}label_2${labelDelimiter}2${trailingFieldDelimiter}${recordDelimiter}`,
+              `label_1${labelDelimiter}3${fieldDelimiter}label_2${labelDelimiter}4${trailingFieldDelimiter}${recordDelimiter}`,
+            ];
+
+            const assertion = {
+              datasetNames: ["label_1", "label_2"],
+              parsedLines: [
+                { label_1: 1, label_2: 2 },
+                { label_1: 3, label_2: 4 },
+              ],
+            };
+
+            expect(messageAggregator.parseSerialMessages(messages)).toEqual(
+              assertion
+            );
+          });
+
+          test("labeled padded", () => {
+            const messages = [
+              `0${trailingFieldDelimiter}${recordDelimiter}`,
+              `label_1${labelDelimiter}    1${fieldDelimiter}label_2${labelDelimiter}  20${trailingFieldDelimiter}${recordDelimiter}`,
+              `label_1${labelDelimiter}  300${fieldDelimiter}label_2${labelDelimiter}4000${trailingFieldDelimiter}${recordDelimiter}`,
+            ];
+
+            const assertion = {
+              datasetNames: ["label_1", "label_2"],
+              parsedLines: [
+                { label_1: 1, label_2: 20 },
+                { label_1: 300, label_2: 4000 },
+              ],
+            };
+
+            expect(messageAggregator.parseSerialMessages(messages)).toEqual(
+              assertion
+            );
+          });
         });
 
         test("buffering", () => {

Diff for: src/msgAggregatorWorker.ts

@@ -76,6 +76,8 @@ export const parseSerialMessages = (
       message = message.replace(delimiterRegex, " ");
       // replace multiple spaces with a single space
       message = message.replace(/\s+/g, " ");
+      // replace all equal signs with a colon
+      message = message.replace(/=/g, ":");
 
       const parsedLine: { [key: string]: number } = {};