GNU bug report logs - #2385
bibtex autokey no longer ignores uncapitalized title words

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "era eriksson" <era <at> iki.fi>
To: submit <at> debbugs.gnu.org
Subject: bibtex autokey no longer ignores uncapitalized title words
Date: Thu, 19 Feb 2009 15:47:15 +0200

[Message part 1 (text/plain, inline)]

Package: emacs
Version: 23.0.90.1

I'm taking the liberty to forward the following bug from the Ubuntu
Launchpad:

https://bugs.launchpad.net/ubuntu/+source/emacs22/+bug/243156

> What I Expected to Happen
> ====================
> 
> This affects the BibTeX mode. Emacs 20 changed the behaviour, thus:
> 
> *** Autokey generation now uses all words from the title, not just
> capitalized words. To avoid conflicts with existing customizations,
> bibtex-autokey-titleword-ignore is set up such that words starting 
> with lowerkey characters will still be ignored. Thus, if you want to 
> use lowercase words from the title, you will have to overwrite the 
> bibtex-autokey-titleword-ignore standard setting.
> 
> So for an entry
> 
> @InProceedings{,
>   author = {Ganter, Bernhard and Kuznetsov, Sergei O.},
>   title = {Stepwise Construction of the {Dedekind-MacNeille}
>                    Completion},
>   year = 1998,
>   booktitle = {ICCS '98: Proceedings of the 6th International 
>               Conference on Conceptual Structures},
>   pages = {295--302},
>   address = {Montpellier, France},
>   publisher = {Springer-Verlag},
>   isbn = {3-540-64791-0}
> }
> 
> pressing C-c C-c should generate and add the key
> 
>     ganter98:_stepw_const_dedek_macneil_compl
> 
> instead it generates
> 
>   ganter98:_stepw_const_of_dedek_macneil_compl
> 
> In emacs21
> =========
> 
> The variable `bibtex-autokey-titleword-ignore` is set to
> 
>   '("A" "An" "On" "The" "Eine?" "Der" "Die" "Das"
>     "[^A-Z].*" ".*[^a-zA-Z0-9].*")
> 
> and it works as expected.
> 
> In emacs22
> =========
> 
> The variable `bibtex-autokey-titleword-ignore` is set to
> 
>   '("A" "An" "On" "The" "Eine?" "Der" "Die" "Das"
>     "[^[:upper:]].*" ".*[^[:upper:]0-9].*")
> 
> and it does not work as expected.
> 
> Workaround
> =========
> 
> The old value from emacs21 does not solve the problem, instead I have > to enumerate all prepositions and conjunctions.

I have verified this bug with Emacs snapshot 1:20090207-1~intrepid1 from
https://launchpad.net/~ubuntu-elisp/+archive/ppa

Attached below please find a patch for Emacs 23.

/* era */

-- 
If this were a real .signature, it would suck less.  Well, maybe not.

[bibtex-snapshot-el.patch (text/x-patch, attachment)]

Message #10 received at 2385 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Roland Winkler" <Roland.Winkler <at> physik.uni-erlangen.de>
To: era <at> iki.fi
Cc: 2385 <at> debbugs.gnu.org
Subject: bug#2385: bibtex autokey no longer ignores uncapitalized title words
Date: Fri, 20 Feb 2009 01:19:40 +0100

In general, the patch makes sense to me and I am willing to install
it.  Can someone else comment on the following part?

+	;;;;;;;; XXX FIXME: case-fold-search should be unnecessary here
+	;; [[:upper:]] and [[:lower:]] should be unaffected by case folding
+        (unless (let ((case-fold-search nil))

Thanks,

Roland

Message #15 received at 2385 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: "Roland Winkler" <Roland.Winkler <at> physik.uni-erlangen.de>
Cc: era <at> iki.fi, 2385 <at> debbugs.gnu.org
Subject: Re: bug#2385: bibtex autokey no longer ignores uncapitalized title words
Date: Thu, 19 Feb 2009 20:50:04 -0500

> In general, the patch makes sense to me and I am willing to install
> it.  Can someone else comment on the following part?
>
> +    ;;;;;;;; XXX FIXME: case-fold-search should be unnecessary here
> +    ;; [[:upper:]] and [[:lower:]] should be unaffected by case folding
> +        (unless (let ((case-fold-search nil))

I doubt we're going to change this behavior in the near future.

Message #20 received at 2385 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Roland Winkler <Roland.Winkler <at> physik.uni-erlangen.de>
Cc: 2385 <at> debbugs.gnu.org, era <at> iki.fi
Subject: Re: bug#2385: bibtex autokey no longer ignores uncapitalized title words
Date: Thu, 19 Feb 2009 22:12:41 -0500

> Can someone else comment on the following part?

> +	;;;;;;;; XXX FIXME: case-fold-search should be unnecessary here
> +	;; [[:upper:]] and [[:lower:]] should be unaffected by case folding
> +        (unless (let ((case-fold-search nil))

Whether [:upper:] and [:lower:] should be affected by case folding or
not is a good question.  I'm personally not sure which option is best.
But in any case in Emacs they *are* affected so the case-fold-search
binding does make a difference.

> In general, the patch makes sense to me and I am willing to install it.

Please install it then and close the bug, thank you.


        Stefan

Message #25 received at 2385-done <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Roland Winkler" <Roland.Winkler <at> physik.uni-erlangen.de>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 2385-done <at> debbugs.gnu.org, era <at> iki.fi,
        Chong Yidong <cyd <at> stupidchicken.com>
Subject: Re: bug#2385: bibtex autokey no longer ignores uncapitalized title words
Date: Fri, 20 Feb 2009 05:26:00 +0100

> > In general, the patch makes sense to me and I am willing to install it.
> 
> Please install it then and close the bug, thank you.

I installed the patch (including a comment in the docstring for
bibtex-autokey-titleword-ignore that case is significant.)

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