GNU bug report logs - #64972
bibtex-autokey-get-year does not recognize biblatex date ranges

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Gustavo Barros <gusbrs.2016 <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: bibtex-autokey-get-year does not recognize biblatex date ranges
Date: Mon, 31 Jul 2023 09:53:41 -0300

Hi All,

I think this counts more as a feature request than a bug report.  But,
currently, `bibtex.el's `bibtex-autokey-get-year' cannot handle
`biblatex' date ranges, and it would be nice if it did.

For example, calling `M-: (bibtex-autokey-get-year)' with point inside
the entry:

    @Article{,
      author       = {Author, J.},
      title        = {Title},
      journaltitle = {Journal},
      date         = {2020-10/2020-12},
    }

Results in user-error "Year or date field ‘2020-10/2020-12’ invalid".

The "date" field, however, is valid `biblatex' syntax for a date
range, according to the section "2.3.8 Date and Time Specifications"
of `biblatex's manual.

Best regards,
Gustavo.

Message #8 received at 64972 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Gustavo Barros <gusbrs.2016 <at> gmail.com>, Roland Winkler <winkler <at> gnu.org>
Cc: 64972 <at> debbugs.gnu.org
Subject: Re: bug#64972: bibtex-autokey-get-year does not recognize biblatex
 date ranges
Date: Sat, 05 Aug 2023 12:27:19 +0300

> From: Gustavo Barros <gusbrs.2016 <at> gmail.com>
> Date: Mon, 31 Jul 2023 09:53:41 -0300
> 
> Hi All,
> 
> I think this counts more as a feature request than a bug report.  But,
> currently, `bibtex.el's `bibtex-autokey-get-year' cannot handle
> `biblatex' date ranges, and it would be nice if it did.
> 
> For example, calling `M-: (bibtex-autokey-get-year)' with point inside
> the entry:
> 
>     @Article{,
>       author       = {Author, J.},
>       title        = {Title},
>       journaltitle = {Journal},
>       date         = {2020-10/2020-12},
>     }
> 
> Results in user-error "Year or date field ‘2020-10/2020-12’ invalid".
> 
> The "date" field, however, is valid `biblatex' syntax for a date
> range, according to the section "2.3.8 Date and Time Specifications"
> of `biblatex's manual.

Roland, any comments?

Thanks.

Message #11 received at 64972 <at> debbugs.gnu.org (full text, mbox):

From: Roland Winkler <winkler <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Gustavo Barros <gusbrs.2016 <at> gmail.com>, 64972 <at> debbugs.gnu.org
Subject: Re: bug#64972: bibtex-autokey-get-year does not recognize biblatex
 date ranges
Date: Sun, 06 Aug 2023 11:09:21 -0500

On Sat, Aug 05 2023, Eli Zaretskii wrote:
>>     @Article{,
>>       author       = {Author, J.},
>>       title        = {Title},
>>       journaltitle = {Journal},
>>       date         = {2020-10/2020-12},
>>     }
>> 
>> Results in user-error "Year or date field ‘2020-10/2020-12’ invalid".
>> 
>> The "date" field, however, is valid `biblatex' syntax for a date
>> range, according to the section "2.3.8 Date and Time Specifications"
>> of `biblatex's manual.
>
> Roland, any comments?

Thanks, I'll look into this!

Message #14 received at 64972 <at> debbugs.gnu.org (full text, mbox):

From: Roland Winkler <winkler <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Gustavo Barros <gusbrs.2016 <at> gmail.com>, 64972 <at> debbugs.gnu.org
Subject: Re: bug#64972: bibtex-autokey-get-year does not recognize biblatex
 date ranges
Date: Tue, 22 Aug 2023 19:09:31 -0500

On Sat, Aug 05 2023, Eli Zaretskii wrote:
>>       date         = {2020-10/2020-12},
>> 
>> Results in user-error "Year or date field ‘2020-10/2020-12’ invalid".
>> 
>> The "date" field, however, is valid `biblatex' syntax for a date
>> range, according to the section "2.3.8 Date and Time Specifications"
>> of `biblatex's manual.
>
> Roland, any comments?

biblatex permits dates and date ranges according to ISO 8601.

The problem in bibtex-autokey-get-year arises because iso8601-valid-p
believes that the string "2020-10/2020-12" is not valid according to
ISO 8601, though iso8601-parse-interval parses that string correctly.

So it seems to me that this problem requires, first of all, some changes
in iso8601.el.  Who is familiar with this code and can possibly make
suggestions?

Roland

Message #17 received at 64972 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Roland Winkler <winkler <at> gnu.org>, Paul Eggert <eggert <at> cs.ucla.edu>
Cc: gusbrs.2016 <at> gmail.com, 64972 <at> debbugs.gnu.org
Subject: Re: bug#64972: bibtex-autokey-get-year does not recognize biblatex
 date ranges
Date: Wed, 23 Aug 2023 14:30:07 +0300

> From: Roland Winkler <winkler <at> gnu.org>
> Cc: Gustavo Barros <gusbrs.2016 <at> gmail.com>,  64972 <at> debbugs.gnu.org
> Date: Tue, 22 Aug 2023 19:09:31 -0500
> 
> On Sat, Aug 05 2023, Eli Zaretskii wrote:
> >>       date         = {2020-10/2020-12},
> >> 
> >> Results in user-error "Year or date field ‘2020-10/2020-12’ invalid".
> >> 
> >> The "date" field, however, is valid `biblatex' syntax for a date
> >> range, according to the section "2.3.8 Date and Time Specifications"
> >> of `biblatex's manual.
> >
> > Roland, any comments?
> 
> biblatex permits dates and date ranges according to ISO 8601.
> 
> The problem in bibtex-autokey-get-year arises because iso8601-valid-p
> believes that the string "2020-10/2020-12" is not valid according to
> ISO 8601, though iso8601-parse-interval parses that string correctly.
> 
> So it seems to me that this problem requires, first of all, some changes
> in iso8601.el.  Who is familiar with this code and can possibly make
> suggestions?

I hope Paul (CC'ed) will.

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