Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!amdcad!sun!pitstop!sundc!seismo!uunet!mcvax!goya!bosco!ibm
From: ibm@bosco.dit.upm.es (Ignacio Bellido Montes)
Newsgroups: comp.lang.lisp
Subject: Problems with Lisp Packages
Keywords: Packages, Constants
Message-ID: <117@bosco.dit.upm.es>
Date: 22 Feb 89 11:32:38 GMT
Reply-To: ibm@bosco.UUCP (Ignacio Bellido Montes)
Organization: dit
Lines: 45


	European users knows this article, I posted it some time ago but, as
I haven't receive any answer, I send it to every body.

	Could someone of you help me on a Common Lisp problem?.

	The trouble I have comes from the package management. I haven't found
any book or manual that explain the uses of this CL feature. I've tried to use
it, and I've found I don't know how.

	I use a Hewlett-Packard 9000-350 with Lucid Common Lisp II. I made a
group of functions which made things like:

	(DEFUN FOO (X)
		(COND ((EQUAL (CAR X) 'YES) ... )
		      ((EQUAL (CAR X) 'NO) ... )
		      (T (PRINT 'ERROR)))
	)

	When the current package is the same where the function is defined,
the function is well evaluated. But when I use the function from another
package, using (PACKAGE-FOO::FOO), the predicate EQUAL fails.

	I stepped the function, but the only thing I saw is that the constants
YES or NO, are not qualified by the interpreter with the package identifier.

	If some one knows how can I do that, or better, where can I find good,
and explained, examples of package use (Steele's book is not a good help)
please e-mail me or post a new.

	Thanks in advance,
				ibm (in low case)

===========================================================================
Ignacio Bellido Fernandez-Montes,

Departamento de Ingenieria de           Department of Telematic
Sistemas Telematicos (dit),		Systems Enginering,
Laboratorio de Inteligencia Artificial.	Artificial Intelligence Laboratory.
Universidad Politecnica de Madrid.	Madrid University of Technology.

e-mail:	ibellido@dit.upm.es or	  Phone: Work: 34 - 1 - 5495700 ext 368
	ibellido@goya.uucp		 Home: 34 - 1 - 2533365
TELEX" 47430 ESTIST E			 Fax:  34 - 1 - 2432077
===========================================================================