# adding asterisks to author last name using Chicago Style (meta-analysis)

Similar to this question, I would like to asterisk certain citations in the reference list but using style=chicago-authordate instead of apa. For some reason that I do not know, this small change eliminates the asterisks. The MWE from that question is a good example here as well:

\documentclass[american]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
\usepackage{babel}
\usepackage{csquotes}
\usepackage[backend=biber, style=apa]{biblatex}
\DeclareLanguageMapping{american}{american-apa}

\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@book{bohec,
author        = {Le Bohec, Yann},
title         = {Histoire militaire des guerres puniques},
date          = {1996},
location      = {Monaco},
publisher     = {Rocher},
isbn          = {2-268-02147-5},
}
@book{uthor,
author        = {Uthor, Arnold},
title         = {A Book},
date          = {2013},
location      = {Place},
publisher     = {P. Ublisher's \& Co.},
}
\end{filecontents*}

\DeclareBibliographyCategory{asterisk}
\renewbibmacro*{begentry}{%
\ifcategory{asterisk}%
{*}%
{}%
}

\begin{document}
\cite{wilde,cicero,coleridge,vangennep,bohec,uthor}
\printbibliography
\end{document}


The solution above relies on the begentry bibmacro being executed in each bibliography driver as is custom with the standard styles (and I would have thought with most custom styles as well). The biblatex-chicago styles do not issue begentry at the beginning of each entry (they do use finentry at the end though, as do all the standard styles).

Luckily though, there is the macro bibindex that is executed in each biblatex-chicago driver.

So all we need is

\renewbibmacro*{bibindex}{%
\ifbibindex
{\indexnames{labelname}%
\indexfield{indextitle}}
{}
\ifcategory{asterisk}%
{*}%
{}}


MWE

\documentclass[american]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
\usepackage{babel}
\usepackage{csquotes}
\usepackage[authordate,backend=biber]{biblatex-chicago}

\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@book{bohec,
author        = {Le Bohec, Yann},
title         = {Histoire militaire des guerres puniques},
date          = {1996},
location      = {Monaco},
publisher     = {Rocher},
isbn          = {2-268-02147-5},
}
@book{uthor,
author        = {Uthor, Arnold},
title         = {A Book},
date          = {2013},
location      = {Place},
publisher     = {P. Ublisher's \& Co.},
}
\end{filecontents*}

\DeclareBibliographyCategory{asterisk}

\renewbibmacro*{bibindex}{%
\ifbibindex
{\indexnames{labelname}%
\indexfield{indextitle}}
{}
\ifcategory{asterisk}%
{*}%
{}}

\begin{document}