![显示用于列出环境(如数学环境)的标签](https://linux22.com/image/373979/%E6%98%BE%E7%A4%BA%E7%94%A8%E4%BA%8E%E5%88%97%E5%87%BA%E7%8E%AF%E5%A2%83%EF%BC%88%E5%A6%82%E6%95%B0%E5%AD%A6%E7%8E%AF%E5%A2%83%EF%BC%89%E7%9A%84%E6%A0%87%E7%AD%BE.png)
我正在使用更好的排版代码,该代码最初由于期刊提交要求而listings
被放置在不理想的环境中(每行verbatims
里面都有负空间)。eqnarray
但是,使用数学环境的一个优点equation
是,您可以在右侧获得自动或手动标记。我想用 来重现这一点listings
,而不需要标题。
以下是 MWE:
\documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage{color}
\usepackage{hyperref}
\usepackage{listings}
% slightly nicer listings output
\lstset{%
basicstyle=\ttfamily\footnotesize,%
breakatwhitespace=true,%
breaklines=false,%
frame=none,%
numberbychapter=false,%
numbers=left,%
numberstyle=\tiny,
}
\begin{document}
\textcolor{blue}{1st test: aligned verbatims in equation}
\begin{equation}
\label{snip:1}
\begin{aligned}
&\verb!import numpy, psi4! \\
&\verb!np_array = numpy.zeros((5, 5))! \\
&\verb!psi4_matrix = psi4.core.Matrix.from_array(np_array)! \\
&\verb!new_np_array = numpy.array(psi4_matrix)!
\end{aligned}
\end{equation}
\textcolor{blue}{2nd test: aligned verbatims in eqnarray}
\begin{eqnarray}
\begin{aligned}
&\verb!import numpy, psi4! \\
&\verb!np_array = numpy.zeros((5, 5))! \\
&\verb!psi4_matrix = psi4.core.Matrix.from_array(np_array)! \\
&\verb!new_np_array = numpy.array(psi4_matrix)!
\end{aligned}
\label{snip:2}
\end{eqnarray}
\textcolor{blue}{3rd test: listing without caption}
\begin{lstlisting}[label=snip:3]
import numpy, psi4
np_array = numpy.zeros((5, 5))
psi4_matrix = psi4.core.Matrix.from_array(np_array)
new_np_array = numpy.array(psi4_matrix)
\end{lstlisting}
\textcolor{blue}{4th test: listing with caption}
\begin{lstlisting}[label=snip:4,caption=I am an unwanted caption.]
import numpy, psi4
np_array = numpy.zeros((5, 5))
psi4_matrix = psi4.core.Matrix.from_array(np_array)
new_np_array = numpy.array(psi4_matrix)
\end{lstlisting}
Using standard \verb!\ref{label}!:
\begin{itemize}
\item The first test is \ref{snip:1}.
\item The second test is \ref{snip:2}.
\item The third test is \ref{snip:3}.
\item The fourth test is \ref{snip:4}.
\end{itemize}
Using \verb!\autoref{label}! from \texttt{hyperref}:
\begin{itemize}
\item The first test is \autoref{snip:1}.
\item The second test is \autoref{snip:2}.
\item The third test is \autoref{snip:3}.
\item The fourth test is \autoref{snip:4}.
\end{itemize}
\end{document}
输出为:
listings
对于没有标题的实例,似乎根本不需要计数器。如何才能获得数学环境的外观和行为listings
,而无需标题?
答案1
我不知道这是否是一个可接受的解决方案,但您可以使用tcolorbox
没有标题的,并将listings
其放入其中,minipage
然后放入适当的宏中以打印标签。
\documentclass[12pt]{article}
\usepackage[most]{tcolorbox}
\tcbuselibrary{listings}
\newtcblisting[auto counter]{mylist}[1][]{%
title={},
colback=white,
colframe=white,
listing only,
enhanced,
sharp corners,
bottom=0pt,
top=0pt,
boxsep=0pt,
leftrule=0pt,
left=10pt,
listing engine=listings,
listing options = {
basicstyle=\ttfamily\footnotesize,%
breakatwhitespace=true,%
breaklines=false,%
frame=none,%
numberbychapter=false,%
numbers=left,%
numberstyle=\tiny,
numbersep=6pt,
},
#1
}
\makeatletter
\newcommand{\tcb@cnt@mylistautorefname}{Listing}
\newcommand{\printlabel}{\begin{minipage}{.05\linewidth}\raggedleft(\makeatletter\thetcb@cnt@mylist\makeatother)\end{minipage}}
\makeatother
\usepackage{hyperref}
\begin{document}
You could use a \verb|tcolorbox| whithin a \verb|minipage| which is a little smaller than \verb|\linewidth| and write the (label) automatically side by side with an appropriate command. Please note that I didn't put spaces before the code.
\noindent\begin{minipage}{.95\linewidth}
\begin{mylist}[label=snip:4]
import numpy, psi4
np_array = numpy.zeros((5, 5))
psi4_matrix = psi4.core.Matrix.from_array(np_array)
new_np_array = numpy.array(psi4_matrix)
\end{mylist}
\end{minipage}
\printlabel
Using standard \verb!\ref{label}!:
now is \ref{snip:4}.
Using \verb!\autoref{label}! from \texttt{hyperref}:
Now is \autoref{snip:4}.
\end{document}