在 LaTeX 中存储和调用可变数量的文本字符串
我目前正在用 LaTeX 编写 API 文档。我有一个包含错误代码和描述列表的表格环境，如下所示：
\begin{tabular}{|c|l|}
\hline
\textbf{Code} & \textbf{Description} \\ \hline
1 & (description of error 1) \\ \hline
2 & (description of error 2) \\ \hline
\end{tabular}
在文档后面的各个位置，我一起引用了错误的代码及其描述，如下所示：
Possible error conditions:
\begin{itemize}
\item 1---(description of error 1)
\end{itemize}
我想自动化此过程，因此我没有每次都重新输入描述。我尝试过使用计数器、标签和 \savebox 命令，但它相当麻烦：
\newcounter{error}
% Inside the tabular environment:
\newsavebox{\ErrorOne}
\savebox{\ErrorOne}{(description of error 1)}
\refstepcounter{error} \label{ErrorOne} \arabic{error} & \usebox{\ErrorOne} \\ \hline
后来，为了引用错误，
\ref{ErrorOne}---\usebox{\ErrorOne}
我特别反对必须使用 ErrorOne 作为标签，但使用 \ErrorOne （带有前导反斜杠）作为保存箱。我也不太想要像 ErrorOne 这样的名称，因为我可能需要在某些时候更改顺序。我想要的是能够定义一些命令：
\newerror{errorlabel}{Description} % defines the error (doesn't output anything)
\errorcode{errorlabel} % outputs the error code
\errordesc{errorlabel} % outputs the error description
然后能够
\newerror{ArgumentError}{Too many arguments}
\newerror{DatabaseError}{Could not connect to database}
% Inside the tabular environment:
\errorcode{ArgumentError} & \errordesc{ArgumentError} \\ \hline
\errorcode{DatabaseError} & \errordesc{DatabaseError} \\ \hline
% Later on:
\errorcode{DatabaseError}---\errordesc{DatabaseError}
像标签一样自动生成错误代码（1、2、3、...）。
有什么想法吗？
I'm currently writing an API document in LaTeX. I have a tabular environment with a list of error codes and descriptions, like so:
\begin{tabular}{|c|l|}
\hline
\textbf{Code} & \textbf{Description} \\ \hline
1 & (description of error 1) \\ \hline
2 & (description of error 2) \\ \hline
\end{tabular}
At various places later in the document, I reference an error's code and its description together, like so:
Possible error conditions:
\begin{itemize}
\item 1---(description of error 1)
\end{itemize}
I want to automate this process so I don't have to retype the descriptions every time. I have tried using a counter, labels, and the \savebox command, but it's pretty cumbersome:
\newcounter{error}
% Inside the tabular environment:
\newsavebox{\ErrorOne}
\savebox{\ErrorOne}{(description of error 1)}
\refstepcounter{error} \label{ErrorOne} \arabic{error} & \usebox{\ErrorOne} \\ \hline
and later, to reference the error,
\ref{ErrorOne}---\usebox{\ErrorOne}
I particularly object to having to use ErrorOne for the labels but \ErrorOne (with the leading backslash) for the saveboxes. I also don't really want names like ErrorOne, since I might need to change the order at some point. What I want is to be able to define a few commands:
\newerror{errorlabel}{Description} % defines the error (doesn't output anything)
\errorcode{errorlabel} % outputs the error code
\errordesc{errorlabel} % outputs the error description
and then be able to say something like
\newerror{ArgumentError}{Too many arguments}
\newerror{DatabaseError}{Could not connect to database}
% Inside the tabular environment:
\errorcode{ArgumentError} & \errordesc{ArgumentError} \\ \hline
\errorcode{DatabaseError} & \errordesc{DatabaseError} \\ \hline
% Later on:
\errorcode{DatabaseError}---\errordesc{DatabaseError}
with the error codes (1, 2, 3, ...) being automatically generated like labels would be.
Any ideas?
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以下对我有用
The following works for me
在序言中，为每个错误创建新命令，然后只需调用命令：
\newcommand{\errorone}{this is the error and its description}然后在正文中，只需调用新命令：
In your preamble, create new commands for each error, then just call the command:
\newcommand{\errorone}{this is the error and its description}then in the body, just call the new command: