当 biblatex 中没有更多引用时，“从今以后引用为...”

Question

在这个例子中，即使没有更多引用，也会写上简写介绍“此后引用为...”。我更希望只有那些实际重复的引用才得到“此后”并被列入简写列表中。

\documentclass{article}
\usepackage[style=verbose]{biblatex}
\addbibresource{biblatex-examples.bib}

\begin{document}
Foo.\autocite{kant:kpv}
Bar.\autocite{kant:ku}

Baz.\autocite{kant:kpv}

\printshorthands
\printbibliography
\end{document}

通过这个例子我得到

我希望仅获取 KpV 今后的信息，并且不让 KU 出现在缩写列表中。

Answer 1

第一个问题（对于仅引用一次的项目，没有“从今以后引用为……”）已经解决这里。

第二个问题（未引用任何项目，仅在“缩写”中列出一次）已得到处理这里（这个问题可能被认为是重复的吗？）。

编辑：基于这些，我的解决方案如下（按照moewe的建议，我改变了之前的解决方案，使其更优雅）：

\documentclass{article}

\usepackage[style=verbose,backend=biber,citecounter=true]{biblatex} % option citecounter=true added
\addbibresource{biblatex-examples.bib}
\addbibresource{blref.bib}

% Set threshold to 1
\newcommand{\SHthreshold}{1}

% Redefinition of shorthandintro
\savebibmacro{shorthandintro}
\renewbibmacro*{shorthandintro}{%
  \ifnumgreater{\value{citecounter}}{\SHthreshold}%
    {\restorebibmacro{shorthandintro}%
     \usebibmacro{shorthandintro}}%
    {}}

% Consider only items cited more than threshold-value times for Abbreviations list
\defbibcheck{shorthand}{%
  \iffieldundef{shorthand}%
    {\skipentry}%
    {\ifnumgreater{\value{citecounter}}{\SHthreshold}%
       {}%
       {\skipentry}}}

\begin{document}
Foo.\autocite{kant:kpv}
Bar.\autocite{kant:ku}

Baz.\autocite{kant:kpv}

\printshorthands
\printbibliography
\end{document}

为了完整性，我还保留了我以前的解决方案：

\documentclass{article}
\usepackage[style=verbose,citecounter=true]{biblatex} % option citecounter=true added
\addbibresource{biblatex-examples.bib}
\addbibresource{blref.bib}

% Set threshold to 1
\newcommand{\SHthreshold}{1}

\renewbibmacro*{cite:full}{%
    \usebibmacro{cite:full:citepages}%
    \printtext[bibhypertarget]{%
        \usedriver
        {\DeclareNameAlias{sortname}{default}}
        {\thefield{entrytype}}}%
    %   \usebibmacro{shorthandintro}}% DELETED
    \ifnumgreater{\value{citecounter}}{\SHthreshold}{% NEW
        \usebibmacro{shorthandintro}% NEW
    }{% NEW
}% NEW
}% NEW

% Category with citecounter > 1 
\DeclareBibliographyCategory{allowshorthand}
\AtEveryCitekey{%
    \ifnumgreater{\value{citecounter}}{\SHthreshold}{%
        \addtocategory{allowshorthand}{\thefield{entrykey}}%
    }{%
}%
}

\begin{document}
Foo.\autocite{kant:kpv}
Bar.\autocite{kant:ku}

Baz.\autocite{kant:kpv}

\printshorthands[category=allowshorthand] % option category=allowshorthand added
\printbibliography
\end{document}