Added unfinished URL parser and helper functions

Helper functions will ensure URL parameters are
normalized before being used.

Author: Hugo-RM

client/utils/parseURLParams.js

@@ -0,0 +1,62 @@
+import { p5Versions, currentP5Version } from "../../common/p5Versions";
+
+// One centralized parser
+export function parseUrlParams(url) {
+  const params = new URLSearchParams(new URL(url, 'https://dummy.origin').search);
+
+  return {
+    version: validateVersion(params.get('version')), // string
+    sound: validateSound(params.get('sound')), // bool
+    preload: validatePreload(params.get('preload')), // bool
+    shapes: validateShapes(params.get('shapes')), // bool
+    data: validateData(params.get('data')) // bool
+    // Easy to add more params here
+  };
+}
+
+function validateVersion(version) {
+    if (!version) {
+        return currentP5Version;
+    }
+
+    // if valid return version
+
+    return currentP5Version;
+}
+function validateSound(sound) {
+    return;
+
+    // on, true, 1 == on
+    // off, false, 0 == off
+
+    // default if none triggered
+
+}
+function validatePreload(preload) {
+    return;
+
+    // on, true, 1 == on
+    // off, false, 0 == off
+    
+    // default if none triggered
+
+}
+function validateShapes(shapes) {
+    return;
+
+    // on, true, 1 == on
+    // off, false, 0 == off
+    
+    // default if none triggered
+
+
+}
+function validateData(data) {
+    return;
+
+    // on, true, 1 == on
+    // off, false, 0 == off
+    
+    // default if none triggered
+
+}