The GuileScript looks nice, for interested readers, see 
<https://github.com/aconchillo/guilescript>

On 20-08-2022 21:59, Aleix Conchillo Flaqué wrote:
> However, I'm not able to find a way to avoid character 
> encoding/escaping and the generated code inside <script> will always 
> have "&lt;", etc. And <script> is a place where encodings can be 
> avoided. This is true for both Guile and guile-lib's (htmlprag), even 
> though htmlprag's escapes less characters (e.g. double quotes).
>
> One way I found to solve this was to have <script src="fib.js"> and 
> then have a handler for fib.js that would just return the transpiled 
> string. But it's not as nice, it's extra work and it's also an 
> additional roundtrip to the server.
>
> Has anyone ran into this issue? Would is make sense to add a keyword 
> argument to (sxml->xml)? For example, (sxml->xml SXML PORT #:escape #f).

Having unescaped < in <script>...</script> does not seem valid XML to me.

Does escaping &lt; actually cause problems?  If so, you could look into 
declaring your web page as XHTML, with an appropriate doctype and 
Content-Type.

I would expect XHTML to accept &lt; and reject unescaped <, being XML 
and not the messy syntax of HTML, but it's not something I have tried 
out myself.

Greetings,
Maxime.