> On 10 Dec 2022, at 18:27, Ludovic Courtès <l...@gnu.org> wrote: > > ...
> Of these only #2 is something we could work on. However, truncation has > proven to be a hindrance sometimes (in backtraces, objects are > automatically), so I’m not sure we want to enable it by default on > wrong-type-arg error messages. > > Thoughts? > > Ludo’. There's previous discussion on this, going both ways. I think excessive output is a more serious problem, because it should be possible to go to a backtrace frame and look at objects directly. On the other hand, it should also be possible to C-c when guile starts to flood the terminal. But neither of these workarounds is reliable :-/ Ultimately this printing should be configurable. We already have the repl-option system (repl-option-set! repl 'print ...). This system doesn't apply to exception messages nor backtraces. I think if it did, that would mostly solve the problem. I also think that, besides options to truncate or not, we should have a pager (display at most a page, give options to next/stop/all). That would be the best default.
