bug#79076: 14.1.0; TeX-fold-* folding \cite as "[c]"

[Kai Bagley via bug-auctex via Bug reporting list for AUCTeX]

On Thursday, July 24th, 2025 at 11:09 PM, Paul Nelson <ultr...@gmail.com> wrote:

> 
> 
> On Thu, 24 Jul 2025 at 05:50, Kai Bagley <kaibag...@pm.me> wrote:
> 
> > 
> > When TeX-fold--bib-abbrev-entry-at-point is called from 
> > TeX-fold--bib-abbrev, it tries to find the "year" field, but biblatex 
> > appears to prefer the "date" over "year", so Zotero at some point updated 
> > the file accordingly and stopped the function working (it exits the 
> > when-let* when year becomes nil). Deleting the bib file and recreating with 
> > Zotero as a better bibtex file solves the problem completely.
> > 
> > Is there a way to set tex-fold to use biblatex fields? I know there's a 
> > bibtex-dialect that can be set to biblatex, however 
> > TeX-fold--bib-abbrev-entry-at-point evaluates specifically (year 
> > (bibtex-text-in-field "year" entry)).
> 
> > 
> 
> Not at the moment, but I assume this should be easy if the formats are 
> similar enough, although I’m not familiar with biblatex. Could you please 
> share a working example, eg, small sample tex and bib files?

Sure thing, 

test.bib (biblatex format):
@article{fotheringhamMultiscaleGeographicallyWeighted2017,
  title = {Multiscale {{Geographically Weighted Regression}} ({{MGWR}})},
  author = {Fotheringham, A. Stewart and Yang, Wenbai and Kang, Wei},
  date = {2017-11-02},
  journaltitle = {Annals of the American Association of Geographers},
  volume = {107},
  number = {6},
  pages = {1247--1265},
  publisher = {Taylor \& Francis},
  issn = {2469-4452},
  doi = {10.1080/24694452.2017.1352480},
  url = {https://doi.org/10.1080/24694452.2017.1352480},
  urldate = {2024-08-19},
  abstract = {this is an abstract},
  keywords = {coeficientes espacialmente variados,espacialidad no 
estacionaria,geographically weighted 
regression,multiescala,multiscale,regresión geográficamente ponderada,spatial 
nonstationarity,spatially varying coefficients,地理加权迴归,多重尺度,空间变异系数,空间非静止性。}
}

test.tex:
\documentclass[10pt]{article}
\usepackage[url=false, isbn=false, eprint=false, backref=false, style=numeric, 
backend=biber, maxcitenames=2, giveninits=true, maxbibnames=100, 
uniquename=init]{biblatex}
\addbibresource{test.bib}
\begin{document}
\cite{fotheringhamMultiscaleGeographicallyWeighted2017}
\end{document}

The above 2 files results in the "[c]" folded cite, instead of the ideal 
"[FYK17]". All I need to do is change "date" to "year", and shorten the date to 
just the year, restart emacs, reread the test.tex file into a buffer, and 
TeX-fold-buffer to get "[FYK17]"



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