Biblatex/Biber – Adding Bibliography Entries by Keyword

biberbiblatex

I would like to print a bibliography which includes all entries with a certain keyword (and possibly some additional entries).

I know that I can filter by keyword when I print the bibliography using

\printbibliography[keyword=<keyword>]

but this will only print entries which I have cited. I could, of course, use

\nocite{*}

to add all entries to the bibliography and then print just those I want.

However, this will make my .bbl file huge as my database is enormous.

Another possibility is to use Biber or another tool to prepare a document-specific .bib file containing only those entries with the keyword. However, this would need to be recreated if additional entries with the keyword are added to my main database files.

Here's an MWE to play with, annotated to indicate the way I'd like it to work ;), and the disadvantages of the way it (almost) works.

The issue of excluding explicitly cited entries is less of an issue for me. The thing I'd really like to work around is adding the entire database contents to the .bbl.

\RequirePackage{filecontents}
\begin{filecontents}{\jobname.bib}
@book{new-stuff,
    author          =   {Watt, Brian},
    title           =   {Happy Times with Penguins},
    publisher       =   {Harvard University Press},
    address         =   {Cambridge, MA},
    year            =   1995,
    pagination      =   {section},
    keywords        =   {happy}}
@book{den-coll,
  author                =   {Till, Jr., Dennis E.},
    booktitle           =   {Penguin Land and Further North: Human Influence},
    title               =   {Penguin Land and Further North: Human Influence},
    publisher           =   {Oxford University Press},
    year                =   2008,
    address             =   {Oxford and New York},
    keywords            =   {penguin, human}}
@book{old-stuff,
  author                =   {Harvey, Jr., Dennis E.},
    booktitle           =   {Penguin Land and Further North: Human Influence},
    title               =   {Penguin Land and Further North: Human Influence},
    publisher           =   {Someone \& Daughters},
    year                =   1567,
    address             =   {Oxford},
    bookpagination      =   {paragraph},
    keywords            =   {penguin}}
\end{filecontents}
\documentclass{article}
\usepackage[defernumbers=true]{biblatex}
\bibliography{\jobname}
\begin{document}

\cite{old-stuff}

% what I would like to work
% \nocite[keyword=happy]
% \printbibliography

% what does work - except that \cite{old-stuff} is ignored and, more importantly, den-coll is added to the .bbl
\nocite{*}
\printbibliography[keyword=happy]

\end{document}

Best Answer

Update: This is now possible with biber 2.14/biblatex 3.14, both in their respective development folders on github [1][2]:

\documentclass{article}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@book{new-stuff,
    author          =   {Watt, Brian},
    title           =   {Happy Times with Penguins},
    publisher       =   {Harvard University Press},
    address         =   {Cambridge, MA},
    year            =   1995,
    pagination      =   {section},
    keywords        =   {happy}}
@book{den-coll,
  author                =   {Till, Jr., Dennis E.},
    booktitle           =   {Penguin Land and Further North: Human Influence},
    title               =   {Penguin Land and Further North: Human Influence},
    publisher           =   {Oxford University Press},
    year                =   2008,
    address             =   {Oxford and New York},
    keywords            =   {penguin, human}}
@book{old-stuff,
  author                =   {Harvey, Jr., Dennis E.},
    booktitle           =   {Penguin Land and Further North: Human Influence},
    title               =   {Penguin Land and Further North: Human Influence},
    publisher           =   {Someone \& Daughters},
    year                =   1567,
    address             =   {Oxford},
    bookpagination      =   {paragraph},
    keywords            =   {penguin}}
\end{filecontents*}

\usepackage[defernumbers=true]{biblatex}
\addbibresource{\jobname.bib}
\DeclareSourcemap{
  \maps[datatype=bibtex]{
    \map{
      \step[nocited, final]
      \step[fieldsource=keywords, notmatch=happy, final]
      \step[entrynull]
    }
  }
}

\begin{document}

\cite{old-stuff}

\nocite{*}
\printbibliography

\end{document}

This removes entries during parsing the data sources which are \nocited or which don't have the keyword.

Related Solutions

[Tex/LaTex] Prevent page and column breaks mid bibliography entries in Biblatex/biber

Your problem is that you need to change the values of different penaltys to 10000 (not allowed).

The easierst way to do that is to patch the relevant commands with package etoolbox and the command \patchcmd{\command-to-be-patched}{search-code}{replace-code}{sucess}{failure} (please see the comments!):

\usepackage{etoolbox}  % <============================ to patch penaltys
\patchcmd{\thebibliography}{\clubpenalty4000}{\clubpenalty10000}{}{}     % no orphans
\patchcmd{\thebibliography}{\widowpenalty4000}{\widowpenalty10000}{}{}   % no widows
\patchcmd{\bibsetup}{\interlinepenalty=5000}{\interlinepenalty=10000}{}{} % no break of entry

So with this complete MWE

\RequirePackage{filecontents} 
\begin{filecontents}{\jobname.bib}
@article{DoeA,
  title={The quick brown fox jumps over the lazy dog The quick brown fox jumps over the lazy dog},
  author={Doe, John and Bar, Foo and Bob, Joe and Kid, Billy The and Lucky, Luke and Kong, King},
  journal={Journal A of supposed excellence and uncomfortably long titles to make this example work. },
  year={2001},
}
@article{DoeB,
  title={The quick brown fox jumps over the lazy dog The quick brown fox jumps over the lazy dog},
  author={Doe, John and Bar, Foo and Bob, Joe and Kid, Billy The and Lucky, Luke and Kong, King},
  journal={Journal B of supposed excellence and uncomfortably long titles to make this example work. },
  year={2001}
}
@article{DoeC,
  title={The quick brown fox jumps over the lazy dog The quick brown fox jumps over the lazy dog},
  author={Doe, John and Bar, Foo and Bob, Joe and Kid, Billy The and Lucky, Luke and Kong, King},
  journal={Journal C of supposed excellence and uncomfortably long titles to make this example work. },
  year={2001},
}
@article{Genius02,
  title={Title B},
  author={Genius, Evil and Vader, Darth},
  journal={Journal B},
  year={2002},
}
\end{filecontents}


\documentclass[10pt]{article}

\usepackage{multicol}
\usepackage[left=2.1cm,right=1.4cm,top=23.5cm,bottom=2cm]{geometry}

\usepackage[backend=bibtex]{biblatex}
\addbibresource{\jobname.bib}

\usepackage{showframe} % <========================= to show typing area!
\usepackage{etoolbox}  % <============================ to patch penaltys
\patchcmd{\thebibliography}{\clubpenalty4000}{\clubpenalty10000}{}{}     % no orphans
\patchcmd{\thebibliography}{\widowpenalty4000}{\widowpenalty10000}{}{}   % no widows
\patchcmd{\bibsetup}{\interlinepenalty=5000}{\interlinepenalty=10000}{}{} % no break of entry


\begin{document}
\begin{multicols}{2}
\nocite{DoeA,DoeB,DoeC,Genius02}

\printbibliography
\end{multicols}
\end{document}

you get the following result (I used package showframe to visualise the resulting typing area):

Biblatex – Using “and” Within Textcite, “&” Within Parencite, “&” Within Bibliography

Change of the final name delimiter between \parencite and \textcite from "&" to "and" as in

(Sigfridsson & Ryde, 1998) and Sigfridsson and Ryde (1998)

is a feature of APA style. See for example https://blog.apastyle.org/apastyle/2011/01/writing-in-text-citations-in-apa-style.html and https://blog.apastyle.org/apastyle/2011/02/changes-parentheses-bring.html.

If you are looking for a complete implementation of APA style with biblatex, you may be interested in biblatex-apa, which when loaded as
\usepackage[backend=biber, style=apa]{biblatex}
should produce a bibliography and citations according to APA guidelines.

The answer below shows how to change the final name delimiter in the standard styles.

With the new context sensitive delimiter interface that should be as easy as redefining finalnamdelim in global scope to give an ampersand and to give "and" for textcite.

\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}

\usepackage[style=authoryear, backend=biber]{biblatex}


\addbibresource{biblatex-examples.bib}

\DeclareDelimFormat{finalnamedelim}{\addspace\&\space}
\DeclareDelimFormat[textcite]{finalnamedelim}{%
  \ifnumgreater{\value{liststop}}{2}{\finalandcomma}{}%
  \addspace\bibstring{and}\space}

\begin{document}
\cite{sigfridsson,companion}

\parencite{sigfridsson,companion}

\textcite{sigfridsson,companion}

\printbibliography
\end{document}

$Sigfridsson & Ryde 1998; Goossens, Mittelbach & Samarin 1994\(Sigfridsson & Ryde 1998; Goossens, Mittelbach & Samarin 1994)\Sigfridsson and Ryde (1998) and Goossens, Mittelbach and Samarin (1994)\Goossens, Michel, Frank Mittelbach & Alexander Samarin (1994).\Sigfridsson, Emma & Ulf Ryde (1998).$

Edited to use the context sensitive delimiter interface. See the edit history for older versions of biblatex.

Best Answer

Related Solutions

[Tex/LaTex] Prevent page and column breaks mid bibliography entries in Biblatex/biber

Biblatex – Using “and” Within Textcite, “&” Within Parencite, “&” Within Bibliography

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