# Omit date from shorthand citation in biblatex-chicago

When I am citing an entry with a shorthand with biblatex-chicago, the year gets printed along with the shorthand label. Is there a way to make Bibtex to just print the shorthand without the year, i.e. the way authoryear does?

\documentclass{article}
\usepackage[
authordate,
backend=biber,
safeinputenc,
natbib,
]{biblatex-chicago}

\begin{filecontents*}{\jobname.bib}
@book{paul2007,
author      = {Hermann Paul},
title       = {{Mittelhochdeutsche Grammatik}},
shorthand   = {MhdG},
edition     = {25. Aufl., neu bearbeitet von Thomas Klein, Hans-Jochim Solms und Klaus-Peter Wegera. Mit einer Syntax von Ingeborg Schröbler, neubearbeitet und erweitert von Heinz-Peter Prell},
series      = {Sammlung kurzer Grammatiken germanischer Dialekte A. Hauptreihe},
number      = {2},
publisher   = {Niemeyer},
location    = {Tübingen},
year        = {2007},
pagination  = {section},
}
\end{filecontents*}

\begin{document}
\citet{paul2007}
\printbibliography
\end{document}


This results in the following:

What I want the in-text citation to look like is just 'MhdG' without the '2007'. If there are any pages indicated, those should stay in the normal way, of course.

This is a matter of deleting a few lines from the relevant bibmacros. We need to modify two bibmacros, textcite:authshort for \textcite/\citet and cite:shorthand for all other cite commands.

\documentclass{article}
\usepackage[
authordate,
backend=biber,
safeinputenc,
natbib,
]{biblatex-chicago}

\makeatletter
\renewbibmacro*{cite:shorthand}{%
\printtext[bibhyperref]{\printfield{shorthand}}%
\usebibmacro{cite:reinit}}

\renewbibmacro*{textcite:authshort}{%
\iffieldequals{fullhash}{\cbx@lasthash}%
{\iffieldundef{postnote}%
{\iffieldequals{fullhash}{\cbx@lastyear}%
{\setunit{\multicitedelim}%
\global\undef\cbx@lastyear}%
{\iffieldequalstr{entrysubtype}{classical}%
{\setunit{\multicitedelim}}%
{\setunit{\compcitedelim}}}}%
{\setunit{\multicitedelim}}%
\iffieldequalstr{entrysubtype}{classical}%
{\usebibmacro{cite:label}}%
{\usebibmacro{cmscitesortdate}}}%
{\iffieldundef{shorthand}%
{\ifthenelse{\ifnameundef{labelname}\OR
\ifentrytype{inreference}\OR
\ifentrytype{reference}\OR
\ifentrytype{mvreference}}%
{\iffieldequalstr{entrysubtype}{classical}%
{\setunit{%
\global\booltrue{cbx:parens}%
\cms@testspace\bibopenparen}%
\ifnumequal{\value{citecount}}{1}%
{\usebibmacro{prenote}}%
{}%
\usebibmacro{cite:label}}%
{\usebibmacro{cite:label}%
\ifboolexpr{%
togl {cms@gencite}%
and
(
test {\iffinalcitedelim}%
or
togl {cms@genallnames}%
)
}%
{\thegen}%
{}%
\setunit{%
\global\booltrue{cbx:parens}%
\cms@testspace\bibopenparen}%
\ifnumequal{\value{citecount}}{1}%
{\usebibmacro{prenote}}%
{}%
\usebibmacro{cmscitesortdate}}}%
{\printnames{labelname}%
\ifboolexpr{%
togl {cms@gencite}%
and
(
test {\iffinalcitedelim}%
or
togl {cms@genallnames}%
)
}%
{\thegen}%
{}%
\setunit{%
\global\booltrue{cbx:parens}%
\cms@testspace\bibopenparen}%
\ifnumequal{\value{citecount}}{1}%
{\usebibmacro{prenote}}%
{}%
\iffieldequalstr{entrysubtype}{classical}%
{\usebibmacro{cite:label}}%
{\usebibmacro{cmscitesortdate}}%
\savefield{fullhash}{\cbx@lasthash}}}%
{\printfield{shorthand}%
\ifboolexpr{%
togl {cms@gencite}%
and
(
test {\iffinalcitedelim}%
or
togl {cms@genallnames}%
)
}%
{\thegen}%
{}%
\setunit{%
\global\booltrue{cbx:parens}%
\cms@testspace\bibopenparen}%
\ifnumequal{\value{citecount}}{1}%
{\usebibmacro{prenote}}%
{}%
\iffieldequalstr{entrysubtype}{classical}%
{\usebibmacro{cite:label}}%
{}%
\savefield{fullhash}{\cbx@lasthash}}%
\setunit{%
\ifbool{cbx:parens}%
{\bibcloseparen\global\boolfalse{cbx:parens}}%
{}%
\textcitedelim}}% Not \multicitedelim ???
\makeatother

\begin{filecontents*}{\jobname.bib}
@book{paul2007,
author      = {Hermann Paul},
title       = {{Mittelhochdeutsche Grammatik}},
shorthand   = {MhdG},
edition     = {25. Aufl., neu bearbeitet von Thomas Klein, Hans-Jochim Solms und Klaus-Peter Wegera. Mit einer Syntax von Ingeborg Schröbler, neubearbeitet und erweitert von Heinz-Peter Prell},
series      = {Sammlung kurzer Grammatiken germanischer Dialekte A. Hauptreihe},
number      = {2},
publisher   = {Niemeyer},
location    = {Tübingen},
year        = {2007},
pagination  = {section},
}
\end{filecontents*}

\begin{document}
\cite{paul2007}

\citep{paul2007}

\citet{paul2007}

\citet[5]{paul2007}
\printbibliography
\end{document}


The following code might help you to get the postnote in parentheses for \citet.

\makeatletter
\renewbibmacro*{textcite:postnote}{%
\iffieldundef{postnote}%
{}%
{\savefield{fullhash}{\cbx@lastyear}%
\printfield{postnote}}%
\ifthenelse{\value{multicitecount}=\value{multicitetotal}}%
{\setunit{}%
\printtext{%
\ifbool{cbx:parens}%
{\bibcloseparen\global\boolfalse{cbx:parens}}%
{}}}%
{\setunit{%
\ifbool{cbx:parens}%
{\bibcloseparen\global\boolfalse{cbx:parens}}%
{}%
\textcitedelim}}}% Not \multicitedelim ???
\makeatother

• Thanks, however it makes etoolbox throw an error: "Error: Invalid boolean expression." Maybe there's a bracket missing/too many somewhere? (Or maybe i should update Ubuntu 16.04 to get a more current TexLive?) – Jipí Aug 15 '18 at 6:41
• @Jipí The exact MWE worked for me on a fully updated MikTeX with biblatex 3.11, Biber 2.11 and biblatex-chicago 1.0rc5. The TeX live that comes with Ubuntu 16.04 is outdated by today's standard, so I can't guarantee that this solution will work with your ancient version. Unfortunately, biblatex-chicago is a very complex style and I can't obtain the old version that you are using easily. You don't need to update your Ubuntu, it would be enough to install the vanilla TeX live (tex.stackexchange.com/q/1092/35864) if you are up for that. – moewe Aug 15 '18 at 7:09
• @Jipí I see we had that conversation before in tex.stackexchange.com/q/416228/35864. biblatex 3.3 trails behind current development eight versions and almost two and a half years. With actively developed projects such as biblatex and biblatex-chicago there comes a point at which you can't really expect complicated lower-level and internal stuff like this to work smoothly any more. – moewe Aug 15 '18 at 7:57
• I updated by manually installing TeXLive 2018, and now it works as it should. Is there a way to get MhdG (§ 5) from \citet[5]{paul2007} in addition to the above solution? – Jipí Sep 11 '18 at 19:27
• @Jipí I added an attempt. If that does not help or has bugs, I suggest you open a new question with an MWE and more details (test cases and expected output). – moewe Sep 11 '18 at 20:27