Funny ')lisp a' at startup

[Grégory Vanuxem]

Hello,

You can test. This is not a bug, but since I use Lisp directly
sometimes for testing purposes I was surprised to see that 'a' is
bound at startup. 'a' is often used I think.

└─$ jlfricas
Checking for foreign routines
FRICAS="/usr/local/lib/fricas/target/x86_64-linux-gnu"
spad-lib="/usr/local/lib/fricas/target/x86_64-linux-gnu/lib/libspad.so"
foreign routines found
openServer result -2
FriCAS Computer Algebra System
Version: FriCAS 2023-06-17 built with sbcl 2.4.0.debian
Timestamp: mer. 03 janv. 2024 18:36:01 CET
-----------------------------------------------------------------------------
Issue )copyright to view copyright notices.
Issue )summary for a summary of useful system commands.
Issue )quit to leave FriCAS and return to shell.
-----------------------------------------------------------------------------

(1) -> )lisp a

Value = "{\\sf Union} is a primitive domain of \\Language{} which
cannot be defined in the \\Language{} language."
(1) ->

- Greg

[Waldek Hebisch]

On Wed, Jan 03, 2024 at 10:40:29PM +0100, Grégory Vanuxem wrote:
> Hello,
>
> You can test. This is not a bug, but since I use Lisp directly
> sometimes for testing purposes I was surprised to see that 'a' is
> bound at startup. 'a' is often used I think.

Well, that is 'A' (and also 'X', 'Y', 'W' and 'Z'). This is mostly
harmless (the values are no longe needed), except for fact that most
Lisp-s will make 'A' special (and the other) special.

More generally FriCAS has a lot of symbol in BOOT package, some
care is needed to avoid clashes.

--
Waldek Hebisch

[Grégory Vanuxem]

Ok. Not harmless as you said of course, just uncommon. A, B, C, X, Y,
Z are often used. But after all, using ')lisp' command is not intended
to be used by FriCAS final users.

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