How to change characters in template by replacing {{ and }} with - in Golang?

Question

go

There is a handler

func Handler(w http.ResponseWriter, r *http.Request) {    
    var templates = template.Must(template.ParseGlob("Templates/Main/*/*"))
    var doc bytes.Buffer 
    err := templates.ExecuteTemplate(&doc, "indexPage", nil)
    if err != nil {
        http.Error(w, err.Error(), http.StatusInternalServerError)
        return
    } 
    //templates.Delims("<%", "%>").Funcs(Main_TemplateFuncs).Parse("<%шаблон   %>")    
    fmt.Fprintln(w, &doc)
}

I need to remap the characters {{ and }} as I use the same characters in angularjs.
There is a function templates.Delims("<%", "%>") that will reassign them, but it works if you put text into Parse after it.
And I have a lot of template.Must(template.ParseGlob("Templates/Main//")) files and how do I process them, replacing the standard processing {{ and }} with <% and %> ?

Answer 1

template.Must(template.New("").Delims("<%", "%>").ParseGlob("Templates/Main/*/*"))

Plus, you would need to move template parsing out of the handler. Now they are being parsed at every request, it is very slow. It is necessary to parse them once at the start of the application.

Answer 2

You can always get into a situation where:

• Delims cannot be changed (since a lot of code is already with it)
  
• When Delims characters are needed only in one place and it would be necessary to display them natively
  

<script>
    var title = '{{title}}';
    var obj = {{ { }}{{ } }}       // var obj = {}
</script>