Setting different environment setup depending on the location in two column

Question

I have a lstlisting environment that shows a line number either left or right side of the document.

Setting up lstlisting environment by passing parameters

Setting the ruby code in a two-column document, I keep changing the numers parameter depending on the final layout of the document. The following screen capture shows the wrong number location as a final layout.

\end{lstlisting}
\begin{lstlisting}[language=ruby, numbers=left,firstnumber=1]
...
\end{lstlisting}

Is there an way to setup the lstlisting environment based on which side of the document the lstlisting environment is located?

ADDED

I use IEEEtran class, which has its own options. One can find it from http://tug.ctan.org/tex-archive/macros/latex/contrib/IEEEtran/IEEEtran.cls

\documentclass[conference]{IEEEtran}
\usepackage{cite}

...

\DeclareOption{oneside}{\@twosidefalse\@mparswitchfalse
                        \CLASSOPTIONonesidetrue\CLASSOPTIONtwosidefalse}
\DeclareOption{twoside}{\@twosidetrue\@mparswitchtrue
                        \CLASSOPTIONtwosidetrue\CLASSOPTIONonesidefalse}

\DeclareOption{onecolumn}{\CLASSOPTIONonecolumntrue\CLASSOPTIONtwocolumnfalse}
\DeclareOption{twocolumn}{\CLASSOPTIONtwocolumntrue\CLASSOPTIONonecolumnfalse}

ADDED 2

This code works fine.

\documentclass[conference]{IEEEtran}
\usepackage{listings}
\usepackage{lipsum}

\lstdefinelanguage{rruby}{
        escapechar=\,
        basicstyle=\scriptsize\ttfamily,
        numberstyle=\scriptsize\ttfamily,
        stepnumber=1,
        numbersep=3pt,
        showstringspaces=false,
        breaklines=true,
        frame=lines,
        %backgroundcolor=\color{background},
        literate=
         *{0}{{{\color{numb}0}}}{1}
            {1}{{{\color{numb}1}}}{1}
            {2}{{{\color{numb}2}}}{1}
            {3}{{{\color{numb}3}}}{1}
            {4}{{{\color{numb}4}}}{1}
            {5}{{{\color{numb}5}}}{1}
            {6}{{{\color{numb}6}}}{1}
            {7}{{{\color{numb}7}}}{1}
            {8}{{{\color{numb}8}}}{1}
            {9}{{{\color{numb}9}}}{1}
            {:}{{{\color{punct}{:}}}}{1}
            {,}{{{\color{punct}{,}}}}{1}
            {\{}{{{\color{delim}{\{}}}}{1}
            {\}}{{{\color{delim}{\}}}}}{1}
            {[}{{{\color{delim}{[}}}}{1}
            {]}{{{\color{delim}{]}}}}{1},
            }

\lstset{
    basicstyle=\ttfamily\scriptsize,
}
\makeatletter
\lstnewenvironment{ruby}{
        \if@firstcolumn       
            \lstset{emph={def, class, end, typedef, type, constraint, sentence},emphstyle=\textbf, language=rruby, numbers=left}
        \else
            \lstset{emph={def, class, end, typedef, type, constraint, sentence},emphstyle=\textbf, language=rruby, numbers=right}
        \fi
}{}
\makeatother


\begin{document}
\lipsum

\begin{ruby}
...
\end{ruby}
\begin{lstlisting}[language=ruby, numbers=left,firstnumber=1]
...
\end{lstlisting}
\end{document}

ADDED 3

When the listings environment is in the float environment, the code does not work.

Setting different environment setup depending on the location in two column (also considering the figure environment)

There are ways, but it will depend on your approach to two columns. Would you mind putting together a MWE? — Guho, Jan 08 '16 at 04:39

score 2 · Accepted Answer · answered Jan 08 '16 at 05:03

The command \if@firstcolumn can detect which column you are in; then, you can use \lstnewenvironment to create an environment that sets the numbering before each listing. (There may be other solutions, such as a hook at the top of each column, but I don't know for certain.)

\makeatletter
\lstnewenvironment{tclist}{
    \if@firstcolumn
      \lstset{numbers=left}
    \else
      \lstset{numbers=right}
    \fi
}{}
\makeatother

Then, you can use \begin{tclist}...\end{tclist} exactly as you would use \begin{lstlisting}...\end{lstlisting} in your document.

Here's an example document:

\documentclass[twocolumn]{IEEEtran}
\usepackage{listings}
\lstset{
    basicstyle=\ttfamily\scriptsize,
}
\makeatletter
\lstnewenvironment{tclist}{
% ...same definition as above goes here...
\makeatother
\usepackage{lipsum}
\begin{document}
\lipsum[1-2]
\begin{tclist}
#!/bin/bash

echo hello, world.
\end{tclist}
\lipsum[3-5]
\begin{tclist}
#!/bin/env python3

def main():
    print("Hello, world.")

if __name__ == '__main__':
    main()
\end{tclist}
\end{document}

And here's the output:

Setting different environment setup depending on the location in two column

ADDED

ADDED 2

ADDED 3

1 Answers1

Linked