Enumerate list not showing when using parallel package

Question

I want to divide a paragraph with enumerate. First I use package "parallel":

\documentclass{article}
\usepackage{color}
\usepackage{parallel}
\begin{document}

\begin{Parallel}{0.45\textwidth}{0.45\textwidth}
\ParallelLText{
    \textcolor{red}{Bonds}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
    \end{enumerate}
}
\ParallelRText{
    \textcolor{red}{Stocks}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
    \end{enumerate}
    }
\ParallelPar
\end{Parallel}

\end{document}

So the two items do not appear under the two columns. They just appear on the left hand side.

I don't know how to fix it. And with the package paracol, I don't know how to create a vertical line between coloums.

Can anyone help me?

If you know any package better than those packages please let me know.

---

@Heiko Oberdiek: I still have a problem with vertical problem when i use both packages: hyperref and pdfcolparallel. Here is my code:

\documentclass[12pt,a4paper,final]{book}
\usepackage[utf8]{inputenc}
\usepackage[left=2cm,right=2cm,top=2cm,bottom=2cm]{geometry}
\usepackage{color}
\usepackage{pdfcolparallel}
\setkeys{parallel}{rulebetweencolor=blue}
\usepackage{hyperref} % for bookmark

\hypersetup{
%    bookmarks=true,         % show bookmarks bar?
    unicode=false,          % non-Latin characters in Acrobat’s bookmarks
    pdftoolbar=true,        % show Acrobat’s toolbar?
    pdfmenubar=true,        % show Acrobat’s menu?
    pdffitwindow=false,     % window fit to page when opened
    pdfstartview={FitH},    % fits the width of the page to the window
    pdftitle={My title},    % title
    pdfauthor={Author},     % author
    pdfsubject={Subject},   % subject of the document
    pdfcreator={Creator},   % creator of the document
    pdfproducer={Producer}, % producer of the document
    pdfkeywords={keyword1} {key2} {key3}, % list of keywords
    pdfnewwindow=true,      % links in new window
    colorlinks=true,       % false: boxed links; true: colored links
    linkcolor=blue,          % color of internal links (change box color with linkbordercolor)
    citecolor=green,        % color of links to bibliography
    filecolor=magenta,      % color of file links
    urlcolor=cyan           % color of external links
}

\begin{document}

\pagenumbering{roman}
\cleardoublepage
\pdfbookmark{\contentsname}{Contents}
\tableofcontents

\chapter{Fundamental differences}\hfill
\section{Bonds vs stocks}
\begin{Parallel}[v]{0.45\textwidth}{0.45\textwidth}
\ParallelLText{
    \textcolor{red}{Bonds}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item Contractual payment
        \item Bondholders acquire decision rights in default states.
    \end{enumerate}
}
\ParallelRText{
    \textcolor{red}{Stocks}
    \begin{enumerate}
        \item Share of ownership.
        \item Not maturity.
        \item No contractual payment.
        \item Stockholders have decision rights as long as the firm is solvent.
    \end{enumerate}
    }
\ParallelPar
\end{Parallel}


\end{document}

and here is result: If use only package "pdfcolparallel", the result is very well. But I want to use more packages "hyperref" to creat bookmark. Would you help me fix this problem? Thks

Answer 1

It is a bug in package parallel. \linewidth is not set correctly. Environment enumerate thinks, it could use the full \textwidth and as result the left and right parts overprint each other:

\documentclass{article}
\usepackage{color}
\usepackage{parallel}
\begin{document}

\begin{Parallel}{0.45\textwidth}{0.45\textwidth}
\ParallelLText{
    \textcolor{red}{Bonds}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item \qquad Left text
        \item lll
    \end{enumerate}
}
\ParallelRText{
    \textcolor{red}{Stocks}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item rrr
        \item \qquad Right text
    \end{enumerate}
    }
\ParallelPar
\end{Parallel}

\end{document}

Solution

Package pdfcolparallel fixes this bug by setting \linewidth to the correct value. If pdfTeX in PDF mode is used, it also adds support for pdfTeX's multiple color stacks for fixing color problems.

\documentclass{article}
\usepackage{color}
\usepackage{pdfcolparallel}
\begin{document}

\begin{Parallel}{0.45\textwidth}{0.45\textwidth}
\ParallelLText{
    \textcolor{red}{Bonds}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item \qquad Left text
        \item lll
    \end{enumerate}
}
\ParallelRText{
    \textcolor{red}{Stocks}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item rrr
        \item \qquad Right text
    \end{enumerate}
    }
\ParallelPar
\end{Parallel}

\end{document}

With vertical line

Also the color of the vertical line can be changed with package pdfcolparallel:

\documentclass{article}
\usepackage{color}
\usepackage{pdfcolparallel}
\setkeys{parallel}{rulebetweencolor=blue}
\begin{document}

\begin{Parallel}[v]{0.45\textwidth}{0.45\textwidth}
\ParallelLText{
    \textcolor{red}{Bonds}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item \qquad Left text
        \item lll
    \end{enumerate}
}
\ParallelRText{
    \textcolor{red}{Stocks}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item rrr
        \item \qquad Right text
    \end{enumerate}
    }
\ParallelPar
\end{Parallel}

\end{document}

With package hyperref

Package hyperref needs to add specials to support links and anchors. However these "specials" disrupt the method of package parallel. In this case, the anchors for the items of environment enumerate are probably not needed, thus they can be disabled by environment NoHyper:

\documentclass[12pt,a4paper,final]{book}
\usepackage[utf8]{inputenc}
\usepackage[left=2cm,right=2cm,top=2cm,bottom=2cm]{geometry}
\usepackage{color}
\usepackage{pdfcolparallel}
\setkeys{parallel}{rulebetweencolor=blue}
\usepackage{hyperref} % for bookmark
\usepackage{bookmark}

\hypersetup{
    unicode,                % non-Latin characters in Acrobat's bookmarks
    pdftoolbar=true,        % show Acrobat's toolbar?
    pdfmenubar=true,        % show Acrobat's menu?   
    pdffitwindow=false,     % window fit to page when opened
    pdfstartview={FitH},    % fits the width of the page to the window
    pdftitle={My title},    % title
    pdfauthor={Author},     % author
    pdfsubject={Subject},   % subject of the document
    pdfcreator={Creator},   % creator of the document
    pdfproducer={Producer}, % producer of the document
    pdfkeywords={keyword1} {key2} {key3}, % list of keywords
    pdfnewwindow=true,      % links in new window
    colorlinks=true,       % false: boxed links; true: colored links
    linkcolor=blue,          % color of internal links (change box color with linkbordercolor)
    citecolor=green,        % color of links to bibliography
    filecolor=magenta,      % color of file links
    urlcolor=cyan           % color of external links
}

\begin{document}

\pagenumbering{roman}
\cleardoublepage
\pdfbookmark{\contentsname}{Contents}
\tableofcontents

\chapter{Fundamental differences}\hfill
\section{Bonds vs stocks}
\begin{Parallel}[v]{0.45\textwidth}{0.45\textwidth}
\ParallelLText{
    \textcolor{red}{Bonds}%
    \begin{NoHyper}%
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
        \item Contractual payment
        \item Bondholders acquire decision rights in default states.
    \end{enumerate}%
    \end{NoHyper}%  
}
\ParallelRText{
    \textcolor{red}{Stocks}%
    \begin{NoHyper}%
    \begin{enumerate}
        \item Share of ownership.
        \item Not maturity.
        \item No contractual payment.
        \item Stockholders have decision rights as long as the firm is solvent.
    \end{enumerate}%
    \end{NoHyper}%
    }
\ParallelPar
\end{Parallel}

\end{document}

Answer 2

You can use minipage:

\documentclass{article}
\usepackage{color}

\begin{document}

\begin{minipage}{0.45\textwidth}
    \textcolor{red}{Bonds}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
    \end{enumerate}
\end{minipage}
\vrule \hspace{1cm} %this is what draws the line between the minipages
\begin{minipage}{0.45\textwidth}
    \textcolor{red}{Stocks}
    \begin{enumerate}
        \item Not a share of ownership
        \item Fixed maturity
    \end{enumerate}
\end{minipage}


\end{document}

which produces

Answer 3

And here is a solution using the multicol package, to get a rule between the columns. If the number of lines is different for each column, additional vertical space should be inserted on the column with the shortest text.

Here is the code

\documentclass{article}
\usepackage{xcolor}   % instead of color (more versatile color definitions)
\usepackage{parallel}
\usepackage{multicol}
\usepackage{lipsum}

\setlength{\columnseprule}{0.8pt} % width of the inter column rule 
\definecolor{crc}{rgb}{0,0,1}     % color of the inter column rule
\def\columnseprulecolor{\color{crc!50}}

\begin{document}

\lipsum[4]

\begin{multicols}{2}

\textcolor{red}{Bonds}
\begin{enumerate}
    \item Not a share of ownership
    \item Fixed maturity
\end{enumerate}

\textcolor{red}{Stocks}
\begin{enumerate}
    \item Not a share of ownership
    \item Fixed maturity
\end{enumerate}

\end{multicols}

\lipsum2]

\end{document}