Q: how to divide program in multiple files

[glauber]

Hello,

sorry, this is pretty basic stuff, but the books i have seem reluctant to go
into packages and how to combine them into a larger program (maybe because
there are implementation differences lurking there?).

Anyway, the system i've been using is to create 1 package per file. Each one
of these starts with a (defpackage...) followed by (in-package). Then the
definitions for the functions in that package. I don't close the file with
(in-package "COMMON-LISP-USER").

The main program file then uses (load) to process each of the package files,
followed by (in-package "COMMON-LISP-USER").

Is this the usual way to do things? One would expect there should be some
sort of higher level mechanism to allow you to find your packages and load
them. I found "provide" and "require" in the standard, but they seem to be
very implementation-specific.

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Glauber Ribeiro
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[glauber]

In article <8vu16f$l1$1...@nnrp1.deja.com>,

[...]

> Is this the usual way to do things? One would expect there should be some
> sort of higher level mechanism to allow you to find your packages and load
> them. I found "provide" and "require" in the standard, but they seem to be
> very implementation-specific.

Following up on this, the standard says that provide and require are
"deprecated", but it doesn't give an alternative. Is there one?

glauber