I like to use the hyperref and algorithm2e (Release 3.9) packages when creating documents with LaTeX. Unfortunately, there seems to be a slight incompatibility:
Suppose I process the following with pdflatex:
Then I get:
The line references don't work -- even though they were meant to be fixed in Release 3.3 of algorithm2e according to the change log! A quick fix is to use the [naturalnames] option of hyperref package and comment out lines 845, 847, 849 and 850 of algorithm2e.sty to get (lines 844 to 853 shown below):
Suppose I process the following with pdflatex:
\documentclass{article} \usepackage[naturalnames]{hyperref} \usepackage[linesnumbered,boxed]{algorithm2e} \begin{document} \begin{algorithm} First\label{line_1}\; Second\label{line_2}\; Third\label{line_3}\; \end{algorithm} First is on Line~\ref{line_1}, second is on Line~\ref{line_2} and third is on Line~\ref{line_3}. \end{document}
Then I get:
The line references don't work -- even though they were meant to be fixed in Release 3.3 of algorithm2e according to the change log! A quick fix is to use the [naturalnames] option of hyperref package and comment out lines 845, 847, 849 and 850 of algorithm2e.sty to get (lines 844 to 853 shown below):
\newcommand{\nl}{% % \@ifundefined{href}{% if not hyperref then do a simple refstepcounter \refstepcounter{AlgoLine}% % }{% else if hyperref, do the anchor so 2 lines in two differents algorithms cannot have the same href % \stepcounter{AlgoLine}\Hy@raisedlink{\hyper@anchorstart{AlgoLine\thealgocfline.\theAlgoLine}\hyper@anchorend}% % \stepcounter{AlgoLine}\Hy@raisedlink{\hyper@anchorstart{AlgoLine\thealgocfline.\theAlgoLine}\hyper@anchorend}% % }% now we can do the line numbering \strut\vadjust{\kern-\dp\strutbox\vtop to \dp\strutbox{% \baselineskip\dp\strutbox\vss\llap{\scriptsize{\nlSty{\theAlgoLine}\hskip\skiptotal}}\null}}% }%