将算法线与等号/赋值符号对齐

Question

我希望将算法中的线条与某个符号对齐。例如：

long_variable_name = k | long_variable_name = k
variable = l           | variable           = l

就 LaTeX 而言，我有以下示例：

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{algorithm2e}
\begin{document}


% ALGORITHM PARAMETERS %
\SetAlFnt{\small\fontfamily{cmr}}
\SetKwInOut{Input}{input}
\SetKwInOut{Output}{output}
\RestyleAlgo{boxed}
\LinesNumbered
\IncMargin{1em}

\begin{algorithm}
    \footnotesize
    \DontPrintSemicolon
    \SetKwData{VARA}{VAR$_{old}$}
    \SetKwData{VARB}{VAR$_{new}$}
    \SetKwData{TEMP}{tmp$_{cc}$}
    
    \Input{ A matrix N$\times$M}
    \Output{ A number K}
   
        \BlankLine
    
        \VARA  \ := \ 123 \\
        \VARB  \ := \ 123 \\
        \TEMP  \ := \ 423 \\
    
\end{algorithm}


\end{document}

VARA VARB我希望对齐符号上分配了和TEMP值的线条:=。可以这样做吗？提前谢谢

附言：

这是代码的输出

Answer 1

您可以使用 eqparbox，这需要两次编译。

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{algorithm2e}
\usepackage{eqparbox}
\begin{document}


% ALGORITHM PARAMETERS %
\SetAlFnt{\small\fontfamily{cmr}}
\SetKwInOut{Input}{input}
\SetKwInOut{Output}{output}
\RestyleAlgo{boxed}
\LinesNumbered
\IncMargin{1em}

\begin{algorithm}
    \footnotesize
    \DontPrintSemicolon
    \SetKwData{VARA}{\eqmakebox[var][l]{VAR$_{\mathit{old}}$}}
    \SetKwData{VARB}{\eqmakebox[var][l]{VAR$_{\mathit{new}}$}}
    \SetKwData{TEMP}{\eqmakebox[var][l]{tmp$_{\mathit{cc}}$}}
    
    \Input{ A matrix N$\times$M}
    \Output{ A number K}

        \BlankLine

        \VARA  \ := \ 123 \\
        \VARB  \ := \ 123 \\
        \TEMP  \ := \ 423 \\

\end{algorithm}


\end{document}