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Re: R7RS
From: |
Taylan Ulrich Bayirli/Kammer |
Subject: |
Re: R7RS |
Date: |
Tue, 09 Sep 2014 21:02:25 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Carlos Pita <address@hidden> writes:
> Hi all,
>
> there was a thread a couple of years ago in this list about TODOs for
> reaching R7RS (small) compliance. Just out of curiosity, what is the
> current (or planned) level of conformance? I've read some recent
> announcements about changes in the reader that further align it with
> R7RS but I'm not sure what to expect in other areas:
Hi Carlos,
There's a branch called 'r7rs' in Guile's git repository which aims for
full (or almost-full) compliance as far as I know. I think Mark Weaver
was working on it so he might be able to give clearer information on
what will be intentionally left out. That being said:
> * libraries
This is certainly being implemented on that branch.
> * records
R7RS-small records are equivalent to SRFI-9, so this is merely a matter
of making it a part of the "(scheme base)" library which is the standard
base library of R7RS-small.
> * exceptions
Given R6RS exceptions, R7RS-small exceptions are very trivial. The
`with-exception-handler', `raise', and `raise-continuable' procedures,
and the `guard' syntax, are all the same as in R6RS. The `error'
procedure is basically the same as we have in Guile's core, and
`error-object?', `error-object-message', and `error-object-irritants'
all look pretty trivial so you can bet on the r7rs branch implementing
them.
Taylan
- R7RS, Carlos Pita, 2014/09/09
- Re: R7RS,
Taylan Ulrich Bayirli/Kammer <=