[Tex/LaTex] boxruled formatted algorithm text overflowing

Question

I have a algorithm which is really a sequence of long statements and I'd like it to be inside a box but the following gets the word wrapping wrong. Anyone knows why?

\documentclass[a4paper,10pt]{article}
\usepackage{algorithm2e}
\begin{document}
\RestyleAlgo{boxruled}
\begin{algorithm}
\scriptsize    
\begin{enumerate}
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjj
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjjj
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjj
\end{enumerate}
\caption{A caption}
\end{algorithm}
\end{document}

I've tried putting it in miniboxes and \vbox but nothing works

Answer 1

REVISED. The line \addtolength\linewidth{-4ex} needs to be added inside the algorithm environment. At first, I thought the adjustment was a multiple of \leftmargini and/or \labelsep, but further testing in this MWE proves that belief to be false. Rather, a fixed adjustment to the \linewidth seems to work out best.

\documentclass[a4paper,10pt]{article}
\usepackage{algorithm2e}
\begin{document}

This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjj

\RestyleAlgo{boxruled}
\begin{algorithm}
\addtolength\linewidth{-4ex}
\scriptsize    
\begin{enumerate}
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjj
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjjj
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjj
\end{enumerate}
\caption{A caption}
\end{algorithm}

\leftmargini=3\leftmargini
\labelsep=6\labelsep
\begin{algorithm}
\addtolength\linewidth{-4ex}
\scriptsize    
\begin{enumerate}
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjj
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjjj
\item This is a long text that overflow the box jjjj jjjjjjjjjjjjj jjjjjjjjjjjj jjjjjjjjjj jjjjjj jjjjj jjjj jjjj jjjjjjj jjjj jjjjjj jjjjjjjjj jjjjj jjjj jjjjj jjjjjjj jjjjjj jjjjjjjjjjj j jjjjjjjj j j jjjjjjjj jjjjj j jj jjjjjjjjjj jjjj jjjj jjjjjjj jjjjjjjj jjjjjjjjj jjjjjjjjj jjjj jjjjjjj jjjjjjjj j jjjj jjjj jjjj j j  jjjjjjj jjj jjjjj jjjjjjjj jj jjjj jjj j jjjjjjj
\end{enumerate}
\caption{A caption}
\end{algorithm}
\end{document}