Introduction

In LaTeX, you can create code listings and highlight specific parts of your code to make it easier to read and understand. This is especially useful when creating technical documents, such as software documentation or academic papers.

Using listings package

To create code listings, you can use the listings package. This package allows you to specify the type of code you are displaying and provides options for formatting the code, such as specifying the font size and color.

Here's an example of how to use the listings package to create a code listing in LaTeX:

\documentclass{article}
\usepackage{listings}

\begin{document}

\begin{lstlisting}[language=Python]
def hello_world():
    print("Hello,World!")
\end{lstlisting}

\end{document}

This example generates the following output:

The \begin{lstlisting}[language=Python] and \end{lstlisting} commands tell LaTeX to create a code listing and specify the language as Python. The code you want to display should be placed between these commands.

For code highlighting, the listings package provides options for specifying keywords, comments, and strings in different colors. This makes it easier to distinguish different parts of the code and improve readability.

Here's an example of how to highlight keywords, comments, and strings in a Python code listing:

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

\begin{document}

\lstset{
    language=Python,
    keywordstyle=\color{blue},
    commentstyle=\color{green},
    stringstyle=\color{red}
}
\begin{lstlisting}
def hello_world():
    # This is a comment
    print("Hello,World!") # This is also a comment
\end{lstlisting}

\end{document}

This example generates the following output:

In this example, the \lstset command sets the highlighting options for the code listing. The keywordstyle, commentstyle, and stringstyle options specify the colors for keywords, comments, and strings, respectively.

By using the listings package, you can create professional-looking code listings and highlight specific parts of your code to improve readability.