Re: Different comment syntaxes in within the same buffer?

> I would like to ask the Lispers here whether there is a good solution
> for having different comment syntaxes in the same buffer depending on
> the point's position. For more context, a lot of web templating
> languages (e.g., Svelte, Astro) have multiple syntaxes in the same file.
> For example, Astro filles have a "frontmatter" section where JavaScript
> can go, then after the frontmatter section goes CSS and/or HTML.

Presumably you'd like Emacs to handle correctly not just the comments
but also the highlighting of the rest, as well as the indentation,
etc...

IOW, you need a major mode that understands that the file is split into
several sub parts each one using a different major mode.
AKA "multi major modes".

There are various packages that provide solutions for that, such as
`mmm-mode` and `polymode`.

The built-in `mhtml-mode` also does it for the specific case of HTML
files including CSS and Javascript elements.


=== Stefan