Re: Birds of a feather, macros

>> Geiser in Emacs can somehow already expand Guile macros. Maybe there are
>> things there, that could be used, expanded (ha!), or built upon?
> AFAIK, Geiser is just a REPL.  If you are talking about `,expand', then
> that's Guile meta-command for expanding a form.  Otherwise, I don't know
> what you are referring to.
I should have been more specific. Yes, `,expand' is what I am talking about. 
Except for changing a macro to output quoted stuff and thinking real hard, 
Geiser's `,expand' is the only way I know of, to look at what a macro expands 
to. Though a step by step iterative expand could be even better. I believe 
Dr.Racket or Racket itself has that feature.
>> What else comes to my mind is the question, how difficult it would be to make
>> Guile syntax objects carry source location information like they do in
>> Racket
> They already do.  See syntax-source and syntax-sourcev.  Are you talking
> about other thing?

I was not aware of Guile having anything like that. What I mean is being able to 
access and use the file, line, and character numbers of a definition. 
Apparently, that is exactly what those functions do, according to 
https://www.gnu.org/software/guile/manual/html_node/Syntax-Transformer-Helpers.html#index-syntax_002dsourcev.

Something like what is discussed in 
https://www.greghendershott.com/2014/01/using-syntax-loc.html.

Best regards,
Zelphir

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