我正在寻找以下问题的解决方案：
我使用 BibLaTeX 在 Beamer 演示文稿中打印参考书目。一些参考书目项目包含上标的序数（由加载选项的\nth{‹number›}包的命令生成）。nthsuper
所讨论的参考书目tiny对其项目使用字体大小（\renewcommand*{\bibfont}{\tiny}）。
使用此字体大小，包含上标的参考书目行上方的垂直空间明显扩大。这可能是由于断言文本行两端之间的距离相等。
尽管如此，我还是希望参考书目文本的垂直间距相等。如何避免这些额外的垂直间距，同时保持所需的字体大小和上标序数？
梅威瑟：
\documentclass{beamer}
\usepackage{biblatex}
\defbeamertemplate*{bibliography item}{my text}
{\hfill\insertbiblabel \hss}
%\usepackage{filecontents}% No longer needed on recent distributions, as its functionality has been moved into LaTeX kernel.
%\begin{filecontents}[overwrite]{Bibliography.bib}
\begin{filecontents}{Bibliography.bib}
@InProceedings{JJ20,
author = {Doe, John John and Eod, John John},
booktitle = {Proceedings of~Test Book Title Abcd Efgh Test Title},
date = {2020-02-06},
title = {Test title abcd text test proceedings title title abcd text test proceedings title title abcd text},
booksubtitle = {14th~test subtitle},
editor = {Doe, John John and Eod, John John},
eventdate = {2020-02-06},
eventtitle = {Some~Test Meeting coinciding with~the~Other~Meeting in~This and~That Discipline with~a~Specified~Year},
location = {New~York},
}
@InProceedings{JJ20a,
author = {Doe, John John and Eod, John John},
booktitle = {Proceedings of~Test Book Title Abcd Efgh Test Title},
date = {2020-02-06},
title = {Test title abcd text test proceedings title title abcd text test proceedings title title abcd text},
booksubtitle = {\nth{14}~test subtitle},
editor = {Doe, John John and Eod, John John},
eventdate = {2020-02-06},
eventtitle = {Some~Test Meeting coinciding with~the~Other~Meeting in~This and~That Discipline with~a~Specified~Year},
location = {New~York},
}
\end{filecontents}
\addbibresource{Bibliography.bib}
\nocite{*}
\usepackage[super]{nth}%\usepackage{nth} %%
\begin{document}
\renewcommand*{\bibfont}{\tiny} %%
\begin{frame}{Bibliography}
\printbibliography
\end{frame}
\end{document}
结果：
答案1
后moewe 的评论我设法找到了一种可以在本地运行且不涉及修改 BIB 文件的解决方案。
关键部分是重新定义\nth{}使用\smash{}：
\let\orignth\nth
\renewcommand*{\nth}[1]{\smash{\orignth{#1}}}
在 Beamer 框架中使用时，该参数#1显然变为第二个参数嵌套级别，需要表示为####1：
\let\orignth\nth
\renewcommand*{\nth}[1]{\smash{\orignth{####1}}}
可以通过以下方式提供位置信息：
\begingroup
…
\endgroup
或者将两行包装成一个命令并提供第二行来撤销更改：
\newcommand*{\smashnth}{%
\let\orignth\nth
\renewcommand*{\nth}[1]{\smash{\orignth{##1}}}%
}
\newcommand*{\restorenth}{%
\let\nth\orignth%
}
梅威瑟：
\documentclass{beamer}
\usepackage{biblatex}
\defbeamertemplate*{bibliography item}{my text}
{\hfill\insertbiblabel \hss}
%\usepackage{filecontents}% No longer needed on recent distributions, as its functionality has been moved into LaTeX kernel.
%\begin{filecontents}[overwrite]{Bibliography.bib}
\begin{filecontents}{Bibliography.bib}
@InProceedings{JJ20,
author = {Doe, John John and Eod, John John},
booktitle = {Proceedings of~Test Book Title Abcd Efgh Test Title},
date = {2020-02-06},
title = {Test title abcd text test proceedings title title abcd text test proceedings title title abcd text},
booksubtitle = {14th~test subtitle},
editor = {Doe, John John and Eod, John John},
eventdate = {2020-02-06},
eventtitle = {Some~Test Meeting coinciding with~the~Other~Meeting in~This and~That Discipline with~a~Specified~Year},
location = {New~York},
}
@InProceedings{JJ20a,
author = {Doe, John John and Eod, John John},
booktitle = {Proceedings of~Test Book Title Abcd Efgh Test Title},
date = {2020-02-06},
title = {Test title abcd text test proceedings title title abcd text test proceedings title title abcd text},
booksubtitle = {\nth{14}~test subtitle},
editor = {Doe, John John and Eod, John John},
eventdate = {2020-02-06},
eventtitle = {Some~Test Meeting coinciding with~the~Other~Meeting in~This and~That Discipline with~a~Specified~Year},
location = {New~York},
}
\end{filecontents}
\addbibresource{Bibliography.bib}
\nocite{*}
\usepackage[super]{nth}%\usepackage{nth} %%
\newcommand*{\smashnth}{%
\let\orignth\nth
\renewcommand*{\nth}[1]{\smash{\orignth{##1}}}%
}
\newcommand*{\restorenth}{%
\let\nth\orignth%
}
\begin{document}
\renewcommand*{\bibfont}{\tiny} %%
\begin{frame}{Bibliography}
\smashnth
\printbibliography % With smashed ‘nth’s.
\restorenth
\printbibliography % Again with non-smashed ‘nth’s.
\end{frame}
\end{document}
结果：
