\StrLeft 对 \citetitle 没有影响

Question

\footfullcite占用太多空间，所以我决定定义一个自己的命令。我把它叫做\footshortcite。它只显示前置和后置选项以及作者和年份。但是，我不喜欢我的新命令在脚注中显示的大部分引文只使用行长的 1/4 或 1/3，所以我想把引文的标题放在顶部，并在 X 个字符后截断，这样脚注引文的长度就大约是整行的长度。

我尝试过xstring但它似乎\citetitle不能完全扩展，所以\StrLeft对它没有影响。

我做错了什么吗？或者我是对的，这是不可能的？

\RequirePackage{filecontents}
\begin{filecontents*}{Literatur.bib}

@BOOK{denz2005,
author = {Denz, Hermann},
title = {Grundlagen einer empirischen Soziologie: Der Beitrag des quantitativen
Ansatzes},
publisher = {Lit},
location = {M\"unster},
year = {2005}
}

\end{filecontents*}

\documentclass{scrartcl}                

\usepackage[style=authoryear]{biblatex}
\bibliography{Literatur}
\usepackage{optparams}
\usepackage{xstring}

\def\footshortciteintern[#1][#2]#3{%
\ifx#1\empty 
% Nur Autor
\footnote{\citeauthor{#3}, \citeyear{#3}.}
\else
\ifx#2\empty
% Autor und Seite
\footnote{\citeauthor{#3}, \citeyear{#3}, #1.}
\else
% Autor, Seite und vgl.
\expandafter  
\footnote{#1 \citeauthor{#3}, \StrLeft{\citetitle{#3}}{10}, \citeyear{#3}, #2.}
\fi
\fi
}
\newcommand*\footshortcite{%
\optparams{\footshortciteintern}{[\empty][\empty]}
}

\begin{document}

Hallo \footshortcite[vgl.][S.111]{denz2005}
%\footshortcite[S.111]{denz2005}
%\footshortcite{denz2005}

\end{document}

Answer 1

最好的选择是biblatex。\DeclareCiteCommand它使您能够轻松地将书目数据传递给xstring，根据条目类型格式化标题并定义新引文命令的多引用版本。

标题截断通常可能效果不佳（见下图）。我添加了一个利用shorttitle输入字段的替代方案。

xstring这里使用的唯一宏是StrLeft，因此可以在手册中找到有关该代码如何工作的详细信息biblatex。

\documentclass{scrartcl}
\usepackage[style=authoryear]{biblatex}
\usepackage{csquotes}
\usepackage[german]{babel}
\usepackage{xstring}
\usepackage{filecontents}

\DeclareFieldFormat[article]{citetitle}{\mkbibquote{#1}}
\DeclareFieldFormat[book]{citetitle}{\mkbibemph{#1}}

\DeclareCiteCommand{\foottrunccite}[\mkbibfootnote]
    {\usebibmacro{prenote}}
    {\usebibmacro{citeindex}%
        \usebibmacro{cite:trunc}}
    {\multicitedelim}
    {\usebibmacro{postnote}}

\newbibmacro*{cite:trunc}{%
    \iffieldundef{shorthand}
        {\ifthenelse{\ifnameundef{labelname}\OR\iffieldundef{labelyear}}
                {\usebibmacro{cite:label}%
                    \setunit{\addspace}}
                {\printnames{labelname}%
                    \setunit{\nameyeardelim}}%
            \usebibmacro{cite:labelyear+extrayear}%
            \iffieldundef{title}
                {}
                {\addcomma\addspace%
                    \printtext[citetitle]{\StrLeft{\thefield{labeltitle}}{10}}}}
        {\usebibmacro{cite:shorthand}}}

\DeclareCiteCommand{\footshortcite}[\mkbibfootnote]
    {\usebibmacro{prenote}}
    {\usebibmacro{citeindex}%
        \usebibmacro{cite:title}}
    {\multicitedelim}
    {\usebibmacro{postnote}}

\newbibmacro*{cite:title}{%
    \iffieldundef{shorthand}
        {\ifthenelse{\ifnameundef{labelname}\OR\iffieldundef{labelyear}}
                {\usebibmacro{cite:label}%
                    \setunit{\addspace}}
                {\printnames{labelname}%
                    \setunit{\nameyeardelim}}%
            \usebibmacro{cite:labelyear+extrayear}%
            \setunit{\addcomma\addspace}
            \iffieldundef{shorttitle}
                {\printfield[citetitle]{labeltitle}}
                {\printfield[citetitle]{shorttitle}}}
        {\usebibmacro{cite:shorthand}}}

\DeclareMultiCiteCommand{\footshortcites}[\mkbibfootnote]%
    {\footshortcite}{\multicitedelim}

\DeclareMultiCiteCommand{\foottrunccites}[\mkbibfootnote]%
    {\foottrunccite}{\multicitedelim}

\begin{filecontents*}{\jobname.bib}
@BOOK{denz2005,
    author = {Denz, Hermann},
    title = {Grundlagen einer empirischen Soziologie: Der Beitrag des quantitativen Ansatzes},
    shorttitle = {Grundlagen einer empirischen Soziologie},
    publisher = {Lit},
    location = {M\"unster},
    year = {2005}}
@ARTICLE{angenendt,
  author = {Angenendt, Arnold},
  title = {In Honore Salvatoris~-- Vom Sinn und Unsinn der Patrozinienkunde},
  shorttitle = {In Honore Salvatoris},
  journaltitle = {Revue d'Histoire Eccl{\'e}siastique},
  volume = {97},
  date = {2002},
  pages = {431--456}}
\end{filecontents*}
\addbibresource{\jobname.bib}

\begin{document}
Vanilla footcite.\footcite[vgl.][111]{denz2005}
Vanilla footcites.\footcites[vgl.][111]{denz2005}[456]{angenendt}
Like footcite, but with short title.\footshortcite[vgl.][111]{denz2005}
Like footcites, but with short title.\footshortcites[vgl.][111]{denz2005}[456]{angenendt}
Like footcite, but with truncated title.\foottrunccite[vgl.][111]{denz2005}
Like footcites, but with truncated title.\foottrunccites[vgl.][111]{denz2005}[456]{angenendt}
\end{document}