Re: Sharp with exports in defpackage??
- From: rpw3@xxxxxxxx (Rob Warnock)
- Date: Tue, 28 Feb 2006 04:01:04 -0600
josephoswaldgg@xxxxxxxxxxx <josephoswald@xxxxxxxxx> wrote:
+---------------
| Jonathon McKitrick wrote:
| > Is there an advantage in using # with exports in defpackage? ...
|
| More precisely, #:name symbols do not get interned by the reader into
| any package. :name symbols also can be used reliably, but get interned
| by the reader into the keyword package. "NAME'" strings do not get
| interned into any package, either, but require one to strike the caps
| lock key twice, or remember the upcase keystroke in your editor...
+---------------
Another reason to use symbols [whether uninterned or keyword]
instead of "NAME" strings is to avoid problems when the user
is running with a non-standard READTABLE-CASE mode. When symbols
such as #:name are typed in in lowercase, they'll "do the right
thing" regardless of whether (READTABLE-CASE *READTABLE) is the
CLHS default :UPCASE or the increasingly-popular-when-doing-FFI
:INVERT mode. Whereas "NAME" breaks in the latter case...
-Rob
-----
Rob Warnock <rpw3@xxxxxxxx>
627 26th Avenue <URL:http://rpw3.org/>
San Mateo, CA 94403 (650)572-2607
.
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