Merge pull request #10 from Countly/regex

Regex comments for host detection

modules/Constants.js

@@ -107,7 +107,29 @@ var healthCheckCounterEnum = Object.freeze({
 var SDK_VERSION = "23.12.4";
 var SDK_NAME = "javascript_native_web";
 
-// Using this on document.referrer would return an array with 15 elements in it. The 12th element (array[11]) would be the path we are looking for. Others would be things like password and such (use https://regex101.com/ to check more)
+// Using this on document.referrer would return an array with 17 elements in it. The 12th element (array[11]) would be the path we are looking for. Others would be things like password and such (use https://regex101.com/ to check more)
+// an example URL:
+// http://user:pass@host:8080/path/to/resource?query=value#fragment
+// this url would yield the following result for matches = urlParseRE.exec(document.referrer);
+//
+// 0: "http://user:pass@host:8080/path/to/resource?query=value#fragment"
+// 1: "http://user:pass@host:8080/path/to/resource?query=value"
+// 2: "http://user:pass@host:8080/path/to/resource"
+// 3: "http://user:pass@host:8080"
+// 4: "http:"
+// 5: "//"
+// 6: "user:pass@host:8080"
+// 7: "user:pass"
+// 8: "user"
+// 9: "pass"
+// 10: "host:8080"
+// 11: "host"
+// 12: "8080"
+// 13: "/path/to/resource"
+// 14: "/path/to/"
+// 15: "resource"
+// 16: "?query=value"
+// 17: "#fragment"
 var urlParseRE = /^(((([^:\/#\?]+:)?(?:(\/\/)((?:(([^:@\/#\?]+)(?:\:([^:@\/#\?]+))?)@)?(([^:\/#\?\]\[]+|\[[^\/\]@#?]+\])(?:\:([0-9]+))?))?)?)?((\/?(?:[^\/\?#]+\/+)*)([^\?#]*)))?(\?[^#]+)?)(#.*)?/;
 
 export { CDN, DeviceIdTypeInternalEnums, SDK_NAME, SDK_VERSION, configurationDefaultValues, featureEnums, healthCheckCounterEnum, internalEventKeyEnums, internalEventKeyEnumsArray, logLevelEnums, urlParseRE };