How difficult is it to embed Scryer inside another Rust program?

[FreeFull]

I've been thinking lately about using Prolog as a configuration format for other software. Scryer would definitely be my first choice, but how difficult is it to use Scryer as a library?

[mthom]

There's a Rust API for that now, in machine/lib_machine.rs. PR #2309 contains some fixes for it and needs to be merged, but I'm not sure if it is ready. I think nightly tests are disabled in it? I am hesitant to merge it for that reason. @Skgland @lucksus

[FreeFull]

It seems like there are some println!s that happen with Machine::run_query, but otherwise everything seems to be good, thank you.

[Skgland]

I just bumped ahash to 0.8.7 to fix nightly and undid the continue-on-error changes in #2309

[FreeFull]

Another thing I noticed: Currently Machine::run_query(..) uses .expect(str) in multiple places. It'd be nice if it returned Err(message) instead of panicking.