I wrote this, which does a tree fold over a sexp: https://hg.sr.ht/~bjoli/megacut/browse/readme.txt?rev=tip
It is unhygienic currently, and I will probably never change because I only use it at the repl. The code is really just a syntax-case version of the fast and efficient flatten algorithm, but without flattening. -- Linus Björnstam On Sat, 30 Jul 2022, at 23:13, Maxime Devos wrote: > On 30-07-2022 17:42, Zelphir Kaltstahl wrote: >> >> Does this mean, that recursive application of a macro inside a macro >> is impossible? To expand to subforms being the same macro again and >> this way transform a whole tree of s-expressions? >> > You can have recursive macros, see e.g. the let^ macro at > <https://git.gnunet.org/gnunet-scheme.git/tree/gnu/gnunet/utils/hat-let.scm>. > > However, I do not see a way to implement recursivity the same way for > your macro. > > Greetings, > Maxime. > > > Attachments: > * OpenPGP_0x49E3EE22191725EE.asc > * OpenPGP_signature