bug#59540: Calling length on a very long improper list is disastrous.

[Ludovic Courtès]

Hi,

lloda <lloda@sarc.name> skribis:

> 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.

Yes.  Right now it’s just $COLUMNS; we should have a documented SRFI-39
parameter for that.

> 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.

Yes!

Ludo’.