Hi, I'm trying to do something like a fold, but over a tree instead of a list. Is there anything like that?
If it's unclear what I mean, there's a mechanism like that in guile: https://www.gnu.org/software/guile/manual/html_node/SXML-Tree-Fold.html They use it e.g. for XML transformations, but it's really a generic operation and quite useful. Here's a paper on it by Andy Wingo if anyone wants to know the theory behind: https://pdfs.semanticscholar.org/d41a/175cf5bf19c795b940edf566988df05ee4a1.pdf is there anything along those lines in Racket ? Thanks in advance -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/CAJ98PDyVHDnpusBQ9g%3D26J4W7GF5%2Be9krPvUCDuJHY94-17G6w%40mail.gmail.com.
