[Tex/LaTex] Using listings with output

listings

I wonder how to get the output of listings with code. Here is my MWE with output. Now I want to output of this listings too. Any help will be highly appreciated. Thanks

Code

\documentclass{article}
\usepackage{listings}
\usepackage{color}

\lstset{ % General setup for the package
    language={[LaTeX]TeX},
    basicstyle=\small\sffamily,
    numbers=left,
    numberstyle=\tiny,
    frame=tb,
    tabsize=4,
    columns=fixed,
    showstringspaces=false,
    showtabs=false,
    keepspaces,
    commentstyle=\color{red},
    keywordstyle=\color{blue}
}

\begin{document}

\begin{lstlisting}
\begin{document}
Welcome to \LaTeX.
\end{document}
\end{lstlisting}

\end{document}

Output

enter image description here

Best Answer

The best way to show the output along with the LaTeX code is to use the showexpl package:

enter image description here

Notes:

To adjust the position of the output you can use the pos= option: top, bottom, right, left, outer, and inner.

Code:

%\RequirePackage{filecontents}% Comment out so that "example.tex" is not overwritten
\begin{filecontents*}{example.tex}
    Here is some \LaTeX code in an 
    \emph{external} file.  
    The input file is not altered in
    terms of line breaks, but the
    output is properly typeset.
\end{filecontents*}

\documentclass{article}
\usepackage{showexpl}
\usepackage{xcolor}

\lstset{ % General setup for the package
    language={[LaTeX]TeX},
    basicstyle=\small\sffamily,
    numbers=left,
    numberstyle=\tiny,
    frame=tb,
    tabsize=4,
    columns=fixed,
    showstringspaces=false,
    showtabs=false,
    keepspaces,
    commentstyle=\color{red},
    keywordstyle=\color{blue}
}

\begin{document}

Use the environment \verb|LTXexample| to show the code and its output:
\medskip
\begin{LTXexample}[width=0.60\linewidth]
\begin{document}
Welcome to \LaTeX.
\end{document}
\end{LTXexample}

\bigskip
To include code from an external file, use \verb|\LTXinputExample|, 
and also applied \verb|pos=r| to have output on right: 
\medskip
\LTXinputExample[width=0.5\linewidth,pos=r]{example.tex}

\end{document}

Code

\documentclass[preview,border=5,convert]{standalone}

\usepackage{courier}

\usepackage{listings}           
\lstdefinelanguage{customR}{    % defined a new R entry
  keywords={t},
  otherkeywords={<<-,\%*\%},    %% cannot add <-
  keywordstyle=\bfseries,
  moredelim=**[is][\bfseries]{@}{@},
}
\lstdefinelanguage{customRtwo}{
  otherkeywords={<-,<<-,\%*\%},  %% cannot add <-
  keywordstyle=\bfseries,
  moredelim=**[is][\bfseries]{@}{@},
}

\lstdefinelanguage{customRthree}{
    keywords={t,R},
    otherkeywords={<<-,\%*\%},    %% cannot add <-
    keywordstyle=\bfseries,
    moredelim=**[is][\bfseries]{@}{@},
    basicstyle=\ttfamily,
    commentstyle=\textsl,
}

\begin{document} 

\lstset{language=R,caption={Standard R}}
\begin{lstlisting}[frame=tb]
    S <- H %*% t(pprd) %*% t(H) + R
    xest <<- xprd + kalmangain %*% (z - H %*% xprd)
}
\end{lstlisting}

\lstset{language=customR,caption={Custom R}}
\begin{lstlisting}[frame=tb]
    S @<-@ H %*% t(pprd) %*% t(H) + R
    xest @<<-@ xprd + kalmangain %*% (z - H %*% xprd)
}
\end{lstlisting}

\lstset{language=customRtwo,caption={Custom R (alt.)}}
\begin{lstlisting}[frame=tb]
    S <- H %*% t(pprd) %*% t(H) + R
    xest @<@<- xprd + kalmangain %*% (z - H %*% xprd)
}
\end{lstlisting}

\begin{lstlisting}[frame=tb,language=customRthree,caption={Custom R 3}]
    S @<-@ H %*% t(pprd) %*% t(H) + R
    xest @<<-@ xprd + kalmangain %*% (z - H %*% xprd)
}
\end{lstlisting}

\end{document}

Output

enter image description here

[Tex/LaTex] How to avoid the use of default styles when no listings language is set

As @jubobs commented, Listings treats language and style separately.

By defining a language, you tell Listings how it should analyze the code; such as "string in quotation marks" and //comment after double slashes.
By defining a style, you tell Listings how it should typeset the code; such as "strings goes italic" and _{^{//comments shrinks}}.

Go back to your question, a stylish setting is permanent unless you issue another stylish setting or the current group terminates. Similarly, a language assignment is permanent unless you assign another language, the current group terminates, or you issue a stylish setting that contains a language assignment.

In conclusion, perhaps the most systematic way to manage both language and style is to define an exhaustive style that contains a language assignment together with its associated stylish setting. (Just like a language-IDE pair.) And now you can switch between ~~IDEs~~ styles and the no-style-at-all style.

\documentclass{minimal}
\usepackage{listings,xcolor}
\begin{document}

\lstdefinestyle{my IDE setting}{
    language=Asymptote,
    identifierstyle=\color{purple}
}
\lstdefinelanguage{Asymptote}{
    keywords={draw,fill},
    morecomment=[l]{//}
}

\lstset{style=my IDE setting}
\lstinline{123 hello world 456}

\lstset{style=}
\lstinline{123 hello world 456}

\end{document}

Code

Output

Best Answer

Notes:

Code:

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