From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Zelphir Kaltstahl Newsgroups: gmane.lisp.guile.user Subject: Re: lat? and atom? not in guile? 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([2a02:8109:ad3f:ec78:5c22:8e1c:846a:f2aa]) by smtp.googlemail.com with ESMTPSA id 137-v6sm902294wmv.28.2018.06.19.10.33.03 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Jun 2018 10:33:03 -0700 (PDT) In-Reply-To: Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:400c:c0c::22c X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane.org@gnu.org Original-Sender: "guile-user" Xref: news.gmane.org gmane.lisp.guile.user:14628 Archived-At: > ------------------------------ > > Message: 2 > Date: Tue, 19 Jun 2018 11:18:30 -0400 > From: Joshua Branson > To: guile-user@gnu.org > Subject: lat? and atom? not in guile? > Message-ID: <877emuyfcp.fsf@fastmail.com> > Content-Type: text/plain > > > Hello, > > This question comes from a non-scheme guy. I'm not trying to be > critical of guile. I'm just curious. > > So I have the book "The Little Schemer". The book describes the > procedures: "lat?" and "atom?". Surprisingly, guile does not seem to > define these procedures by default. I had assumed that these procedures > were apart of standard scheme, but I guess that is not the case. > > Is there any plan to define these procedures? > > Thanks, > > Joshua Good choice, I am reading it too currently. Maybe I should share my unit tests somewhere? I think many Schemes do not implement these procedures. Guile does not and neither does Racket, which I used for most of the books examples and exercises. I think those procedures are defined in the book in order to have a common ground for a lot of Schemes, so that you can use whatever you want and so that the ideas of the book are clear and not dependent on one specific Scheme dialect. I don't know about any plans of the Guile developers though. ~ Zelphir