Perfect. (with-handlers ((exn:fail? exception-handler)) ...) works nice. Thanks very much for your rapid response, Jos
From: Ryan Culpepper Sent: 27 June 2019 13:36 To: Jos Koot; Racket Users Subject: Re: [racket-users] problem with current-error-port in scribbleinteraction The `uncaught-exception-handler` parameter controls the *bottom* of the exception handler stack, so it won't override the exception handler installed by Scribble's `interaction` form. If you use `with-handlers` (or `call-with-exception-handler`) instead, it should work. The `uncaught-exception-handler` value is inherited by new threads, so it shouldn't refer to a specific escape continuation. That continuation (maybe the whole parent thread) may be gone by the time a child thread raises an exception. Ryan On 6/27/19 12:42 PM, Jos Koot wrote: > > > Hi, > > The attachments are assumed to reside in the same directory and > are reduced forms of more elaborated code. > In module try-rkt I have code that captures errors such as > to avoid an error-message being written on the current-error-port, > to retrieve the error-message and to return normally. > This works well as shown in module test-try-rkt. > However, in a scribble interaction as shown in module try-scrbl, > I get page try.html in which the interaction shows the error message > and does not show the value returned by the test-proc. > > How can I make the interaction behave like in module test-try.rkt? > > In module try.rkt the use of eval is necessary. > > It is a strongly reduced version of a testing system > > that accepts sexprs and checks the returned values, the standard output and > > the error-message when an error is expected. > > Best wishes, Jos -- 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/5d14b620.1c69fb81.1ae35.7a64%40mx.google.com. For more options, visit https://groups.google.com/d/optout.
