如何在演算法中縮排長句子

Question

在此演算法格式中，我希望「考慮第 jth...」即使在換行符中也具有相同的縮排。

程式碼如下：

\documentclass{article}
\usepackage{amsmath}
\usepackage{algorithm}
\usepackage[noend]{algpseudocode}
\makeatletter
\def\BState{\State\hskip-\ALG@thistlm}
\makeatother
\begin{document}
\begin{algorithm}
\caption{hello}\label{euclid}
\begin{algorithmic}[1]
\Procedure{ASAPP}{}
\State $\textit{i} \gets \text{0}$, $\textit{j} \gets \text{0}$, $\textit{k} \gets \text{0}$
\While {i $\leq$ nom}
\While {j $\leq C_{i}$}
\State Considering the \textit{j}th edge of the \textit{i}th metabolite, \textit{x} and \textit{y} contains the vertices of the \textit{j}th edge
\State $\textit{k} \gets \text{\textit{j} + 1}$
\While { k $\leq C_{i}$}
\State Considering the \textit{k}th edge of the \textit{i}th metabolite, \textit{x1} and \textit{y1} contains the vertices of the \textit{k}th edge.
\EndWhile
\EndWhile
\EndWhile
\BState \emph{top}:
\EndProcedure
\end{algorithmic}
\end{algorithm}
\end{document}

Answer 1

您可以使用tabularx計算出適合行尾的框的寬度：

\documentclass{article}

\usepackage{amsmath,algorithm,tabularx}
\usepackage[noend]{algpseudocode}

\makeatletter
\newcommand{\multiline}[1]{%
  \begin{tabularx}{\dimexpr\linewidth-\ALG@thistlm}[t]{@{}X@{}}
    #1
  \end{tabularx}
}
\makeatother

\begin{document}

\begin{algorithm}
  \caption{hello}
  \begin{algorithmic}[1]
    \Procedure{ASAPP}{}
      \State $i \gets 0$, $j \gets 0$, $k \gets 0$
      \While { $i \leq \text{nom}$ }
        \While {$j \leq C_i$ }
          \State \multiline{%
            Considering the $j$-th edge of the $i$-th metabolite,~$x$ and~$y$ 
            contains the vertices of the $j$-th edge}
          \State $k \gets j + 1$
          \While { $k \leq C_i$ }
            \State \multiline{%
              Considering the $k$-th edge of the $i$-th metabolite,~$x_1$ and~$y_1$ 
              contains the vertices of the $k$-th edge.}
          \EndWhile
        \EndWhile
      \EndWhile
    \EndProcedure
  \end{algorithmic}
\end{algorithm}

\end{document}

\multiline{<stuff>}將其內容設定在與 -column內的操作tabularx對齊的a 中。該列的寬度是常規值減去目前演算法行縮減的差值。[t]X\linewidth

Answer 2

如果可以忍受手動斷行，那麼 a\Longunderstack[l]{}是一種選擇

\documentclass{article}
\usepackage{amsmath}
\usepackage{algorithm}
\usepackage[noend]{algpseudocode}
\usepackage{stackengine}
\setstackEOL{\\}
\makeatletter
\def\BState{\State\hskip-\ALG@thistlm}
\makeatother
\begin{document}
\begin{algorithm}
\caption{hello}\label{euclid}
\begin{algorithmic}[1]
\Procedure{ASAPP}{}
\State $\textit{i} \gets \text{0}$, $\textit{j} \gets \text{0}$, 
  $\textit{k} \gets \text{0}$
\While {i $\leq$ nom}
\While {j $\leq C_{i}$}
\State \Longunderstack[l]{Considering the \textit{j}th edge of the
   \textit{i}th metabolite, \textit{x} and \textit{y}\\ 
  contains the vertices of the \textit{j}th edge}
\State $\textit{k} \gets \text{\textit{j} + 1}$
\While { k $\leq C_{i}$}
\State \Longunderstack[l]{Considering the \textit{k}th edge of the 
   \textit{i}th metabolite, \textit{x1} and \textit{y1}\\ 
  contains the vertices of the \textit{k}th edge.}
\EndWhile
\EndWhile
\EndWhile
\BState \emph{top}:
\EndProcedure
\end{algorithmic}
\end{algorithm}
\end{document}