当 biblatex 中日期不确定时，如何在日期后添加问号？

Question

首先一个MWS，其输出如下。

\documentclass[american]{article}
\usepackage[style=authoryear]{biblatex}
\addbibresource{\jobname.bib}

\begin{filecontents*}[overwrite]{\jobname.bib}
@book{somebook1769,
  location = {Place},
  author  = {Name, Given},
  title   = {Some title of this publication},
  date    = {1769?},
}
\end{filecontents*}

\begin{document}
some quote from \cite[1348--1368]{somebook1769}

\printbibliography
\end{document}

如您所见，我在日期后添加了一个问号，但没有打印出来。那么当 biblatex 中日期不确定时，如何在日期后添加问号？

Answer 1

您可以添加 dateuncertain=truebiblatex。

\documentclass[american]{article}
\usepackage[style=authoryear,dateuncertain=true]{biblatex}
\addbibresource{\jobname.bib}
\usepackage{filecontents}
\begin{filecontents*}[overwrite]{\jobname.bib}
@book{somebook1769,
    location = {Place},
    author  = {Name, Given},
    title   = {Some title of this publication},
    date    = {1769?},
}
\end{filecontents*}

\begin{document}
  some quote from \cite[1348--1368]{somebook1769}

\printbibliography
\end{document}

Answer 2

通常情况下，在 biblatex 中最好使用date而不是year，但在这种情况下也许你可以使用它：

\documentclass[american]{article}
\usepackage[style=authoryear]{biblatex}

\begin{filecontents*}[overwrite]{\jobname.bib}
@book{somebook1769,
  location = {Place},
  author  = {Name, Given},
  title   = {Some title of this publication},
  year    = {1769?},
  sortyear= {1769}
}
\end{filecontents*}

\addbibresource{\jobname.bib}

\begin{document}
some quote from \cite[1348--1368]{somebook1769}

\printbibliography
\end{document}