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Is it possible to tell biblatex to never split a bibliography entry across two pages? Ideally this should work for both \cite and \fullcite.

lockstep
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Matthias
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2 Answers2

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biblatex executes \bibsetup at the start of the bibliography; its usual definition is 

\interlinepenalty=5000\relax
\widowpenalty=10000\relax
\clubpenalty=10000\relax
\raggedbottom
\frenchspacing
\biburlsetup

So you can do

\patchcmd{\bibsetup}{\interlinepenalty=5000}{\interlinepenalty=10000}{}{}

and this will inhibit page breaks inside paragraphs.

The utility \patchcmd requires, in general, to load the etoolbox package, but biblatex already loads it.

egreg
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  • That's more what I was looking for, thanks. Do I need to load a package for this to to work? – Matthias Feb 03 '12 at 12:36
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    Do these affect both the "bibliography" and in text citations? I think the question is about in text citations. – StrongBad Feb 03 '12 at 12:38
  • @Daniel: it's about both :-), but primarily the "bibliography", I don't using that many in-text citaitons, so there I can manually put some \pagebreaks – Matthias Feb 03 '12 at 12:43
  • @egreg: I added a clarification on the required etoolbox package. Please approve my edit :) – Matthias Feb 07 '12 at 10:49
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    @Matthias The clarification was good and partly I included it, but biblatex already loads etoolbox. – egreg Feb 07 '12 at 11:07
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    This does not seem to be working for me when bibliography entries consist of 4 or more lines and the split occurs after line 2. Actually setting it myself (\interlinepenalty=10000) right before calling \bibliography did work. – Joost May 19 '15 at 14:26
  • @Joost \interlinepenalty5000 just highly discourages page breaking, but it doesn't inhibit it. – egreg May 19 '15 at 14:32
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    This solution seems to have stopped working with the current biblatex version. I do get line breaks in some fullcite blocks now. Any ideas? – Matthias Aug 17 '15 at 15:32
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    I had the same issue as @Joost and his solution also worked for me. – jshlke Sep 02 '15 at 11:22
3

More a kludge than a true automagic solution:

As BibTeX is a seperate executable that writes the LaTeX code that typesets the bibliography in a .bbl file, which then again is read into LaTeX in the next run, you can simply manually insert a \pagebreak between two \bibitems in the .bbl file to make sure the second one is moved completely to the next page.

As BibTeX is not aware of the layout of the page the size of the fonts etc. it cannot decide where to insert such a \pagebreak itself. It might be possible to modify \bibitem to check whether it fits on the current page but that is most likely not a trivial thing to do.

Of course you loose the manually inserted \pagebreaks whenever you have to rerun BibTeX, so it is best to do this at the very end before publishing, when there are no more changes to the bibliography, to avoid doing this over and over again.

uli
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  • But then I would need to edit the bbl file everytime I change/add things to my bibliography? – Matthias Feb 03 '12 at 11:02
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    @Matthias True. As I wrote, it is a kludge. If you do it at the very end before publishing/printing you only have to do it once. – uli Feb 03 '12 at 11:05
  • I see. Well, this not really practical for me. But thanks anyway! – Matthias Feb 07 '12 at 10:48