Templates with a dash('-') in name compile but can't be used

[distalx]

(From meteor/meteor#1602)

Description:
In the new rendering engine:
If template has a dash in name, it will fail to be compiled. Example:

<template name="super-duper">
  Here I am!
</template>

See the reproduction: https://github.com/Slava/meteor-dashed-template-bug-repruduction

Discourse:

Templates shouldn't be allowed to have hyphens in names and the fact that older rendering engine Spark supported it just means Spark wasn't designed to support features like JS-expressions inside your templates.

Consider the following template call:

{{> foo x-5 }}

where the x-5 expression part is some kind of argument to a template/component or a helper. If instead of foo the template name was foo-bar, it would be confusing for the spacebars parser to determine if it is a name of the template or a subtraction expression and that's why it shouldn't be allowed. You can imagine foo to be a template that dynamically decides what template you want to render based on a js expression.

Moreover, in the future one might want to do (syntax TBD):

{{> foo(x-5)}}

which might call the foo helper with the result of x-5 as an argument to dynamically choose the template to include

Summary :

• Should templates to be allowed to have hyphens in names ?
• <template name="super-duper"> compiles but {{> super-duper }} won't load it. Probably the template should fail to compile...
• {{> super-duper }} fails to compile whereas {{> super-1}} compiles but tries to load super.

[mitar]

I would say the same as in #38, we should probably provide {{> "super-duper"}} syntax to reference non-simple template names

[filipenevola]

I'm closing this issue because it's too old.

If you think this issue is still relevant please open a new one.

Why? We need to pay attention to all the open items so we should keep opened only items where people are involved.