How about adding casting option for <%= ?

[shkim]

In some cases, I pass many variables via map[string]interface{}
A string can be printed with <%=v model["errorMsg"] %>
and hero will generate:
hero.EscapeHTML(fmt.Sprintf("%v", model["errorMsg"]), _buffer)

I think it would be handy if there is a casting option so here can generate the code like:
hero.EscapeHTML(model["errorMsg"].(string), _buffer)

[shkim]

I thought I could cast by myself, like:
<%= model["errorMsg"].(string) %>

but if model["errorMsg"] is nil, panic occurs.
So I hope casting is done only if the object is not nil in generated code.

[shiyanhui]

Sorry for replying late.

The error handler will be left to the user cause I can't think out a better way than that.