描述：
我正在使用一个小修改来自动将缩写“cf.”添加到引用预注中：
\renewbibmacro*{prenote}{%
\iffieldundef{prenote}%
{% true
\printtext{cf\adddot}%
}{% false
\printfield{prenote}}%
\setunit{\prenotedelim}%
}%
总是添加“cf.”在大多数情况下很有用，但并非在所有情况下都如此。因此，我想将此自动预注外包到单独的 中。仅在键入或缩写\NewDocumentCommand时才应将其添加为预注。\cf-cite\cf-autocite
我该如何介绍这一点？
最小工作示例（MWE）：
\begin{filecontents}{\jobname.bib}
@book{Doe,author = {Doe, Jon},date = {1998}}
\end{filecontents}
% ----------------------------------------------------------------------------------
\documentclass{book}
\usepackage[backend=biber,citestyle=numeric,style=authoryear,natbib=true]{biblatex}
\usepackage{filecontents}
\setlength\parindent{0pt}
\renewbibmacro*{prenote}{%
\iffieldundef{prenote}%
{% true
\printtext{cf\adddot}%
}{% false
\printfield{prenote}}%
\setunit{\prenotedelim}%
}%
\bibliography{\jobname}
\begin{document}
This is a very simple example to demonstrate citing with auto-added prenotes \autocite[25]{Doe}.
\par\bigskip As you can see, the abbreviation \enquote{cf.} will always be displayed. It is not possible to keep this field empty anymore. However, this is not useful in every case. Therefore I want to generate two \textbackslash NewDocumentCommand's:
\begin{itemize}
\item \textbackslash cf-cite and
\item \textbackslash cf-autocite
\end{itemize}
Only when using one of those two new commands, the previous mentioned \enquote{cf.} should be displayed as a prenote. In all other cases the field should remain empty.
\par\bigskip How can I do that?
\end{document}
编辑：\autocite[cf.][35]{Doe}当我想到我以前的想法时，这已经没有什么意义了。无论我是否必须写或写，都无所谓\cf-autocite[35]{Doe}。:-)
答案1
这并非您所要求的，但我认为这是对您的尝试的改进。我确实认为内置预注释有点过头了，但要像您建议的那样拥有自己的“外包”预注释，则需要针对您希望此功能可用的\DeclareCitationCommand几个命令的每个变体进行相当多的结构化。biblatex
我认为您原来的结构在实践中会运行得很好，而且只需一个简单的切换就可以轻松禁用“cf.”的自动插入。
\begin{filecontents}{\jobname.bib}
@book{Doe,author = {Doe, Jon},date = {1998}}
\end{filecontents}
% ----------------------------------------------------------------------------------
\documentclass{book}
\usepackage[backend=biber,citestyle=numeric,style=authoryear,natbib=true]{biblatex}
\usepackage{filecontents}
\setlength\parindent{0pt}
\newtoggle{nocf}
\newcommand*{\nocf}{\AtNextCite{\toggletrue{nocf}}}
\renewbibmacro*{prenote}{%
\iffieldundef{prenote}%
{% true
\iftoggle{nocf}{}{%
\printtext{cf\adddot}%
}%
}{% false
\printfield{prenote}%
}%
\setunit{\prenotedelim}%
}
\addbibresource{\jobname.bib}
\begin{document}
This is a very simple example to demonstrate citing with auto-added prenotes
\autocite[25]{Doe}.
\bigskip
As you can see, the abbreviation “cf.” will be displayed by
default. But it is possible to leave it empty with
‘\verb|\nocf|’ \nocf\autocite[34]{Doe}.
\bigskip
However, without it, the default behavior is back \autocite[29]{Doe}.
\end{document}
