JSFiddle - React, Tailwind, and code Playground

JavaScript

var s = "{{token id=foo1 class=foo2 attr1=foo3 hi=we}} hiwe=wef";
var matches = s.match(/(\w+(?==\w+)|(?!==\w+)\w+)(?!\{\{)(?!.*token)(?=.*}})/g);
matches.splice(0,1);
for (var i = 0; i < matches.length; i++) {
    alert(matches[i]);
}