我在阅读的文本文件中有一些引用键，我能够成功读取这些键并将它们打印在文章中，但不能在里面打印\cite{\MyVariable}。
具体来说，这就是我想要实现的\cite{\CitePointer}（从当前示例来看），并且\CitePointer具有我需要参考的 bib 键。
这里有一个我想要实现的完整工作示例：
\documentclass[journal]{IEEEtran}
\usepackage{catchfilebetweentags}
\begin{filecontents}{\jobname-tags.tex}
Hello world I have a tag inside this
\iffalse
%<*tag:citekey>
IEEEhowto
%</tag:citekey>
\fi
\end{filecontents}
\begin{document}
- This is working as expected\cite{IEEEhowto}
\edef\PaperCiteRef{IEEEhowto}
- This reference is working as expected we will call \PaperCiteRef \ in a cite\cite{\PaperCiteRef}
\edef\CitePointer{\ExecuteMetaData[\jobname-tags.tex]{tag:citekey}}
- This prints the reference key \CitePointer
- The following is not working (uncomment it)
%- Why this \cite{\CitePointer} wont work?
\begin{thebibliography}{1}
\bibitem{IEEEhowto}
H.~Kopka and P.~W. Daly, \emph{A Guide to \LaTeX}, 3rd~ed.\hskip 1em plus
0.5em minus 0.4em\relax Harlow, England: Addison-Wesley, 1999.
\end{thebibliography}
\end{document}
我猜测这\CitePointer是由于某些格式破坏了\cite命令，但我无法修复它，有什么想法吗？
在这种情况下\cite{\PaperCiteRef}有效但\cite{\CitePointer}实际上无效。
答案1
这样做\edef\CitePointer{\ExecuteMetaData[\jobname-tags.tex]{tag:citekey}}并不能定义\CitePointer你想要的字符串。事实上，如果我添加
\show\CitePointer
按照这个指令我得到了
> \CitePointer=macro:
->\ExecuteMetaData [camacho-tags.tex]{tag:citekey}.
（因为我将主文件命名为camacho.tex）。您应该使用\CatchFileBetweenTags。
\documentclass[journal]{IEEEtran}
\usepackage{catchfilebetweentags}
\begin{filecontents}{\jobname-tags.tex}
Hello world I have a tag inside this
\iffalse
%<*tag:citekey>
IEEEhowto
%</tag:citekey>
\fi
\end{filecontents}
\begin{document}
-- This is working as expected~\cite{IEEEhowto}
\edef\PaperCiteRef{IEEEhowto}
-- This reference is working as expected we will call \PaperCiteRef \ in a
cite~\cite{\PaperCiteRef}
\CatchFileBetweenTags{\CitePointer}{\jobname-tags.tex}{tag:citekey}
-- This prints the reference key \CitePointer\ and the reference
works~\cite{\CitePointer}
\begin{thebibliography}{1}
\bibitem{IEEEhowto}
H.~Kopka and P.~W. Daly, \emph{A Guide to \LaTeX}, 3rd~ed.%
\hspace{1em plus 0.5em minus 0.4em}Harlow, England: Addison-Wesley, 1999.
\end{thebibliography}
\end{document}
