Isolate all parsers in a local self-executing function

javascript/_baseParser.js

@@ -1,21 +1,21 @@
-class FunctionNotOverriddenError extends Error {
+TAC.FunctionNotOverriddenError = class FunctionNotOverriddenError extends Error {
     constructor(message = "", ...args) {
         super(message, ...args);
         this.message = message + " is an abstract base function and must be overwritten.";
       }
 }
 
-class BaseTagParser {
+TAC.BaseTagParser = class BaseTagParser {
     triggerCondition = null;
 
     constructor (triggerCondition) {
-        if (new.target === BaseTagParser) {
+        if (new.target === TAC.BaseTagParser) {
             throw new TypeError("Cannot construct abstract BaseCompletionParser directly");
         }
         this.triggerCondition = triggerCondition;
     }
 
     parse() {
-        throw new FunctionNotOverriddenError("parse()");
+        throw new TAC.FunctionNotOverriddenError("parse()");
     }
 }