Closed stefan11 closed 2 years ago
The custom data model does not appear to be relevant to the question, so here is a shortened MWE that compares an entry with month and one without month side by side.
\documentclass{article}
\begin{filecontents}{\jobname.bib}
@inproceedings{CP85a-month,
author = {Lewis G. Creary and Carl J. Pollard},
title = {A Computational Semantics for Natural Language},
crossref = {acl85},
month = jul,
pages = {172--179},
}
@inproceedings{CP85a-nomonth,
author = {Lewis G. Breary and Carl J. Pollard},
title = {A Computational Semantics for Natural Language},
crossref = {acl85},
pages = {172--179},
}
@proceedings{acl85,
title = {Proceedings of the Twenty-Third Annual Meeting of the Association for Computational Linguistics},
editor = {Mann, William C.},
year = {1985},
address = {Chicago, IL},
publisher = {acl},
}
\end{filecontents}
\usepackage[
backend=biber,
]{biblatex}
\addbibresource{\jobname.bib}
\begin{document}
\autocite{acl85,CP85a-month,CP85a-nomonth}
\printbibliography
\end{document}
Biber 2.16 (dev) for Win 64 bit says
[0] Config.pm:312> INFO - This is Biber 2.16 (beta)
[0] Config.pm:315> INFO - Logfile is 'themesons.blg'
[101] biber-MSWIN64:330> INFO - ===
[135] Biber.pm:415> INFO - Reading 'themesons.bcf'
[242] Biber.pm:952> INFO - Found 3 citekeys in bib section 0
[257] Biber.pm:4340> INFO - Processing section 0
[270] Biber.pm:4529> INFO - Looking for bibtex format file 'themesons.bib' for section 0
[312] bibtex.pm:1682> INFO - LaTeX decoding ...
[319] bibtex.pm:1494> INFO - Found BibTeX data source 'themesons.bib'
[346] Biber.pm:1641> INFO - Datamodel validation starting
[347] Utils.pm:395> WARN - Datamodel: Entry 'CP85a-month' (themesons.bib): Missing mandatory field - one of 'date, year' must be defined
[348] Biber.pm:1690> INFO - Datamodel validation complete
[356] UCollate.pm:68> INFO - Overriding locale 'en-US' defaults 'variable = shifted' with 'variable = non-ignorable'
[357] UCollate.pm:68> INFO - Overriding locale 'en-US' defaults 'normalization = NFD' with 'normalization = prenormalized'
[357] Biber.pm:4168> INFO - Sorting list 'nty/global//global/global' of type 'entry' with template 'nty' and locale 'en-US'
[360] Biber.pm:4174> INFO - No sort tailoring available for locale 'en-US'
[364] bbl.pm:651> INFO - Writing 'themesons.bbl' with encoding 'UTF-8'
[366] bbl.pm:754> INFO - Output to themesons.bbl
[370] Biber.pm:128> INFO - WARNINGS: 1
and indeed the .bbl
entry for CP85a-month
has no year
% $ biblatex auxiliary file $
% $ biblatex bbl format version 3.1 $
% Do not modify the above lines!
%
% This is an auxiliary file used by the 'biblatex' package.
% This file may safely be deleted. It will be recreated by
% biber as required.
%
\begingroup
\makeatletter
\@ifundefined{ver@biblatex.sty}
{\@latex@error
{Missing 'biblatex' package}
{The bibliography requires the 'biblatex' package.}
\aftergroup\endinput}
{}
\endgroup
\refsection{0}
\datalist[entry]{nty/global//global/global}
\entry{CP85a-nomonth}{inproceedings}{}
\name{author}{2}{}{%
{{hash=d8c483296dfcf138f168665a5adccfb4}{%
family={Breary},
familyi={B\bibinitperiod},
given={Lewis\bibnamedelima G.},
giveni={L\bibinitperiod\bibinitdelim G\bibinitperiod}}}%
{{hash=fa9853e1691fdd880720d658b26c51c7}{%
family={Pollard},
familyi={P\bibinitperiod},
given={Carl\bibnamedelima J.},
giveni={C\bibinitperiod\bibinitdelim J\bibinitperiod}}}%
}
\name{editor}{1}{}{%
{{hash=563f8403b123f318931470603517361a}{%
family={Mann},
familyi={M\bibinitperiod},
given={William\bibnamedelima C.},
giveni={W\bibinitperiod\bibinitdelim C\bibinitperiod}}}%
}
\list{location}{1}{%
{Chicago, IL}%
}
\list{publisher}{1}{%
{acl}%
}
\strng{namehash}{19e9bbbcb22ce1344de2a9ea78b533ea}
\strng{fullhash}{19e9bbbcb22ce1344de2a9ea78b533ea}
\strng{bibnamehash}{19e9bbbcb22ce1344de2a9ea78b533ea}
\strng{authorbibnamehash}{19e9bbbcb22ce1344de2a9ea78b533ea}
\strng{authornamehash}{19e9bbbcb22ce1344de2a9ea78b533ea}
\strng{authorfullhash}{19e9bbbcb22ce1344de2a9ea78b533ea}
\strng{editorbibnamehash}{563f8403b123f318931470603517361a}
\strng{editornamehash}{563f8403b123f318931470603517361a}
\strng{editorfullhash}{563f8403b123f318931470603517361a}
\field{sortinit}{B}
\field{sortinithash}{8de16967003c7207dae369d874f1456e}
\field{labelnamesource}{author}
\field{labeltitlesource}{title}
\field{booktitle}{Proceedings of the {Twenty-Third Annual Meeting of the Association for Computational Linguistics}}
\strng{crossref}{acl85}
\field{title}{A Computational Semantics for Natural Language}
\field{year}{1985}
\field{pages}{172\bibrangedash 179}
\range{pages}{8}
\endentry
\entry{CP85a-month}{inproceedings}{}
\name{author}{2}{}{%
{{hash=e96fd41edd389c6732786c8f4e7682a1}{%
family={Creary},
familyi={C\bibinitperiod},
given={Lewis\bibnamedelima G.},
giveni={L\bibinitperiod\bibinitdelim G\bibinitperiod}}}%
{{hash=fa9853e1691fdd880720d658b26c51c7}{%
family={Pollard},
familyi={P\bibinitperiod},
given={Carl\bibnamedelima J.},
giveni={C\bibinitperiod\bibinitdelim J\bibinitperiod}}}%
}
\name{editor}{1}{}{%
{{hash=563f8403b123f318931470603517361a}{%
family={Mann},
familyi={M\bibinitperiod},
given={William\bibnamedelima C.},
giveni={W\bibinitperiod\bibinitdelim C\bibinitperiod}}}%
}
\list{location}{1}{%
{Chicago, IL}%
}
\list{publisher}{1}{%
{acl}%
}
\strng{namehash}{21be075dbc0d72d1584938866c8d6ff5}
\strng{fullhash}{21be075dbc0d72d1584938866c8d6ff5}
\strng{bibnamehash}{21be075dbc0d72d1584938866c8d6ff5}
\strng{authorbibnamehash}{21be075dbc0d72d1584938866c8d6ff5}
\strng{authornamehash}{21be075dbc0d72d1584938866c8d6ff5}
\strng{authorfullhash}{21be075dbc0d72d1584938866c8d6ff5}
\strng{editorbibnamehash}{563f8403b123f318931470603517361a}
\strng{editornamehash}{563f8403b123f318931470603517361a}
\strng{editorfullhash}{563f8403b123f318931470603517361a}
\field{sortinit}{C}
\field{sortinithash}{4c244ceae61406cdc0cc2ce1cb1ff703}
\field{labelnamesource}{author}
\field{labeltitlesource}{title}
\field{booktitle}{Proceedings of the {Twenty-Third Annual Meeting of the Association for Computational Linguistics}}
\strng{crossref}{acl85}
\field{month}{7}
\field{title}{A Computational Semantics for Natural Language}
\field{pages}{172\bibrangedash 179}
\range{pages}{8}
\warn{\item Datamodel: Entry 'CP85a-month' (themesons.bib): Missing mandatory field - one of 'date, year' must be defined}
\endentry
\entry{acl85}{proceedings}{}
\name{editor}{1}{}{%
{{hash=563f8403b123f318931470603517361a}{%
family={Mann},
familyi={M\bibinitperiod},
given={William\bibnamedelima C.},
giveni={W\bibinitperiod\bibinitdelim C\bibinitperiod}}}%
}
\list{location}{1}{%
{Chicago, IL}%
}
\list{publisher}{1}{%
{acl}%
}
\strng{namehash}{563f8403b123f318931470603517361a}
\strng{fullhash}{563f8403b123f318931470603517361a}
\strng{bibnamehash}{563f8403b123f318931470603517361a}
\strng{editorbibnamehash}{563f8403b123f318931470603517361a}
\strng{editornamehash}{563f8403b123f318931470603517361a}
\strng{editorfullhash}{563f8403b123f318931470603517361a}
\field{sortinit}{M}
\field{sortinithash}{2e5c2f51f7fa2d957f3206819bf86dc3}
\field{labelnamesource}{editor}
\field{labeltitlesource}{title}
\field{title}{Proceedings of the {Twenty-Third Annual Meeting of the Association for Computational Linguistics}}
\field{year}{1985}
\endentry
\enddatalist
\endrefsection
\endinput
This was a bug caused by having to handle legacy YEAR/MONTH
fields in addition to the better xDATE
fields. Should be fixed in 2.16 DEV.
Working on the following entries, I get a warning that the year is not specified:
I think this is due to the specification of month information.