pandoc 3.1.7 with link-citations: true doesn't break lines in citations

[jpcirrus]

In pandoc 3.1.7 with the citeproc filter and output to pdf, if link-citations: true then the citations don't break at the right margin, which they do when link-citations: false, and did previously. This is due to \protect\hyperlink{ref-}{text} being replaced by \citeproc{ref-}{text} in the resolution of #9031 by 353177f.

This can be seen with this input file (test-citations.md):

---
link-citations: true
references:
- id: moore2000
  type: article-journal
  title: Diabetes
  container-title: Diabetes
  page: 1-2
  volume: 50
  issue: 2
  author:
    - family: Moore
      given: M.Peter
    - family: Lunt
      given: Helen
  issued:
    date-parts:
      - - 2000
...

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do [@moore2000]
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt...

and compiling with:

pandoc -o test-citations.pdf --citeproc test-citations.md

With link-citations: true:

and with link-citations: false:

[jgm]

@u-fischer is there a way to fix this?

[jgm]

This https://tex.stackexchange.com/questions/2773/how-do-i-make-latex-push-long-citations-to-a-new-line suggests that we need

\usepackage[breaklinks=true]{hyperref}
\usepackage{breakcites}

[jgm]

I can confirm that this works. But I don't know how common a package breakcites is.
The code is so short we could even include it verbatim in the template (though this would be ugly).

[u-fischer]

sorry can't test now, but something like \let\@cite@ofmt\relax or \let\@cite@ofmt\@firstofone should be enough. There is no need to pass to hyperref breaklinks=true. There are no current driver where this is relevant anymore.

[jpcirrus]

@jgm, just to let you know that 353177f causes an issue with beamer, as enumitem clobbers beamer lists. I will open an issue tomorrow.

[jgm]

Sorry to hear about the beamer/enumitem incompatibility. Perhaps we can work around that by using lower-level commands to adjust the list instead? What we need to control:

• hanging indent
• spacing between bibliography items
• control over list label

[cagix]

@jgm, just to let you know that 353177f causes an issue with beamer, as enumitem clobbers beamer lists. I will open an issue tomorrow.

the mentioned related issue is #9053 (just for future reference).

[jgm]

@u-fischer I went with

\let\@cite@ofmt\@firstofone

and this seems to work (though I don't know the difference between it and the other option).

[u-fischer]

(though I don't know the difference between it and the other option).

The grouping will be slightly different, in one case \@cite@ofmt{#1} -> \relax{#1}, in the other \@cite@ofmt{#1} -> #1.