NaN's Paul Schlie (29 Oct 2005 15:50 UTC)
Re: NaN's Marcin 'Qrczak' Kowalczyk (29 Oct 2005 16:39 UTC)
Re: NaN's Paul Schlie (29 Oct 2005 18:22 UTC)
Re: NaN's Marcin 'Qrczak' Kowalczyk (29 Oct 2005 19:14 UTC)
Re: NaN's Paul Schlie (29 Oct 2005 22:49 UTC)
Error objects in general bear (29 Oct 2005 19:46 UTC)
Re: Error objects in general Marcin 'Qrczak' Kowalczyk (29 Oct 2005 20:22 UTC)
Re: Error objects in general bear (30 Oct 2005 05:57 UTC)
Re: Error objects in general Marcin 'Qrczak' Kowalczyk (30 Oct 2005 14:17 UTC)
Re: Error objects in general Alan Watson (29 Oct 2005 21:26 UTC)
Re: Error objects in general bear (30 Oct 2005 05:40 UTC)
Re: Error objects in general Taylor Campbell (30 Oct 2005 05:45 UTC)
Re: Error objects in general bear (30 Oct 2005 06:08 UTC)
Re: Error objects in general Taylor Campbell (30 Oct 2005 16:49 UTC)
Re: Error objects in general Alan Watson (30 Oct 2005 05:54 UTC)
Re: Error objects in general bear (30 Oct 2005 06:07 UTC)
Re: Error objects in general Alan Watson (30 Oct 2005 06:46 UTC)
Re: Error objects in general Paul Schlie (30 Oct 2005 12:39 UTC)
Re: Error objects in general Paul Schlie (30 Oct 2005 13:04 UTC)
Re: Error objects in general John.Cowan (30 Oct 2005 16:30 UTC)
Re: Error objects in general Alan Watson (30 Oct 2005 20:29 UTC)
Re: Error objects in general Alan Watson (30 Oct 2005 13:17 UTC)

Re: Error objects in general Alan Watson 30 Oct 2005 05:53 UTC

bear wrote:

> With (read) capable of executing arbitrary code via quote,
> etc. it is entirely possible for (read) to encounter an
> error.  I want to know whether an error returned from (read)
> is one that was written and read, or one that prevented
> correct reading from occurring.

How is this different from expecting to read a list and getting #f
instead, and not being sure if the #f appeared as a literal in the input
stream or was generated by code called by the reader?

Do you want two different kinds of #f? Those that are generated and
those that are read?

Regards,

Alan
--
Dr Alan Watson
Centro de Radioastronomía y Astrofísica
Universidad Astronómico Nacional de México