GNU bug report logs - #6521
23.2; Elisp Manual Ommission

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#6521: closed (23.2; Elisp Manual Ommission )
Date: Fri, 20 Aug 2010 22:09:02 +0000

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Your message dated Sat, 21 Aug 2010 00:03:11 +0200
with message-id <jwvvd75t026.fsf-monnier+emacs <at> gnu.org>
and subject line Re: bug#6521: 23.2; Elisp Manual Ommission
has caused the GNU bug report #6521,
regarding 23.2; Elisp Manual Ommission 
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Tim Cross <tcross <at> rapttech.com.au>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.2; Elisp Manual Ommission 
Date: Sun, 27 Jun 2010 19:02:52 +1000

It appears the section from the emacs manual that use to describe the
old pre emacs 19.29 behavior with backquotes has been removed. In
previous versions of the manual, it use to describe what this old
behavior was and why it is no longer required. However, it now only
describes the use of backquote as it should now be used.

I think it would be a good idea to put the description of the old
section back into the manual. The reason is that 

        1. The compiler, when warning of code that still uses the old
        backquote format references this node, but there is no reference
        to the old behavior in the node anymore. This makes things less
        clear to new users that perhaps it should be.

        2. It may not be obvious to more recent users exactly what the
        old behavior was, making it more difficult to identify the old
        style and understand how it use to be formatted in order to
        update the code to use the correct modern style.

        3. This is likely to become a bigger issue now that emacs 24 is
        changing to assume a backquote with a space following it is
        modern style. I just encountered code which failed to compile
        due to this. When wanting to clarify my understanding, I found
        nothing relevant in the manual. 

I was referencing version 3 of the elisp manual (for emacs version
24.0.50).

regards,

Tim


-- 
Tim Cross
tcross <at> rapttech.com.au

There are two types of people in IT - those who do not manage what they 
understand and those who do not understand what they manage.

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: tcross <at> rapttech.com.au
Subject: Re: bug#6521: 23.2; Elisp Manual Ommission
Date: Sat, 21 Aug 2010 00:03:11 +0200

[ Can't remember responding yet. ]
>> Could you send it along, so we could see what it looks like (to better
>> assess whether it means we have a serious problem, or if it's just
>> bad luck).
> The code which failed to compile was BBDB as bundled with Debian testing. Do
> you want me to send the error message that was generated? (note that the code
> still compiles with emacs23).

AFAIK, this problem has been fixed a little while back.


        Stefan

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