Vuejs how to use dynamical template in component?

const CustomComponent = {
  props: ['index'],
  template: `<span>I am a custom component: {{ index }}</span>`
};

const UserInputResult = {
  components: {
    CustomComponent
  },
  props: ['templateString'],
  template: `<section v-html="templateString"></section>` 
}

const app = new Vue({
   el: '#app',
   data(){
      return {
         userInput: 'user input example [:component-1]'
      }
   },
   components: {
      UserInputResult
   },
   methods: {
      generateTemplate(){
         let raw = this.userInput;
         if (!!raw && raw.match(/[:component-d+]/g)) {
            let components = [...raw.match(/[:component-d+]/g)];
            components.forEach(component => {
               raw = raw.replace(component, `<custom-component :index="${component.match(/d+/)[0]}"></custom-component>`);
            });             
         }
         return raw;
      }
   }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.16/vue.js"></script>
<div id="app">
  <textarea v-model="userInput"></textarea>
  <user-input-result :template-string="generateTemplate()">
</div>

I want to render a custom component which has a dynamical template base on user input.

when user input a specific string ([:component-1]), it will be render as a component (CustomComponent)

how to achieve this?

Thanks a lot for anyone help!

Answer

I figured it out by using Vue.complie

according to dynamically-fetch-and-compile-a-template-with-nuxt

const UserInputResult = {
  props: ['templateString'],
  render(h){
    return h({
      components: {
        CustomComponent
      },
      template: `<section>${this.templateString}</section>`
    });
  }
}