GNU bug report logs - #61281
“`(a \, b)” equals to “`(a . ,b)”

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From: Andreas Schwab <schwab <at> suse.de>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: Michael Heerdegen <michael_heerdegen <at> web.de>, Xie Shynur <one.last.kiss <at> outlook.com>, "61281 <at> debbugs.gnu.org" <61281 <at> debbugs.gnu.org>
Subject: bug#61281: “`(a \, b)” equals to “`(a . , b)”
Date: Wed, 08 Feb 2023 10:06:16 +0100

On Feb 08 2023, Drew Adams wrote:

>> > Still, could you please show these uses of bare "\,"
>> > explicitly?
>> >
>> >  $ clisp -q -x '`\,'
>> >  $ clisp -q -x '`(\, x)'
>> 
>> | micha> clisp -q -x '`\,'
>> | |,|
>> | micha> clisp -q -x '`(\, x)'
>> | (|,| X)
>
> Great.  So clisp handles the case right (IMO).

It just happens to use different symbols to implement backquote.  That
Elisp uses symbols with the same spelling as the reader macros is not a
bug, only an implementation detail.  For clisp, system::unquote has the
same magic bahaviour for backquote handling as \, does for Elisp.

-- 
Andreas Schwab, SUSE Labs, schwab <at> suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

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