Latex .tex file input highlighted, listed, code

Question

I have the latex document:

\begin{document}

Document introduction.

\onecolumn
\section*{That's how the code looks like}

\begin{algorithm}

\input{z.tex}

\begin{algorithm}



\end{document}

And I wanted to make that z.tex (tex file is exported from program Mathematica) will looks like this:

I think that "listing" won't work and I have to use "algorithm" but I don't know how. The tex in file after appropriate formatting looks like this:

Thank you for your help.

Answer 1

I have tried to solve Your problem using \usepackage{listings}, soI have created file named z.tex and as a result everything working fine:

\documentclass{article}
\usepackage{listings}
\usepackage{xcolor}

\definecolor{codegreen}{rgb}{0,0.6,0}
\definecolor{codegray}{rgb}{0.5,0.5,0.5}
\definecolor{codepurple}{rgb}{0.58,0,0.82}
\definecolor{backcolour}{rgb}{0.95,0.95,0.92}

\lstdefinestyle{mystyle}{
    backgroundcolor=\color{backcolour},   
    commentstyle=\color{codegreen},
    keywordstyle=\color{magenta},
    numberstyle=\tiny\color{codegray},
    stringstyle=\color{codepurple},
    basicstyle=\ttfamily\footnotesize,
    breakatwhitespace=false,         
    breaklines=true,                 
    captionpos=b,                    
    keepspaces=true,                 
    numbers=left,                    
    numbersep=5pt,                  
    showspaces=false,                
    showstringspaces=false,
    showtabs=false,                  
    tabsize=2
}

\lstset{style=mystyle}

\begin{document}
The next code will be directly imported from a file

\lstinputlisting[language=tex]{z.tex}


\end{document}