code listings

Insert code listings

There are multiple ways to insert code listings

Using the native “verbatim” environment

This is the LaTeX native method for inserting code listings. It typesets the contents as is using a typewriter-like font. But dones not provide any type of fontification.

\begin{verbatim}
#include <stdio.h>
int main() {
    printf ("hello world\n");
}
\end{verbatim}

Using the extended verbatim environemnt

The package “verbatim” extended the native verbatim evironemnt with some new features, including the command \verbatiminput{finalename} that icludes the contents of a file as a verbatim environment.

Using the “listings” package

The listings package ®memebr to ) creates its own evironment for code listings. This new environment is very customizable and reading the documentation is strongly advised. Still… if you are lazy, here are some suggestions:

\usepackage{listings}  % Fontification of source code listings
\lstset{
    captionpos=t,
    basicstyle={\ttfamily\footnotesize},
    numbers=left,
    numberstyle={\ttfamily\tiny},
    tabsize=2,
    language=Java,
    float,
    frame=single,
    columns=fullflexible,
    breaklines=true,
    postbreak=\mbox{\textcolor{red}{$\hookrightarrow$}\space},
    inputencoding=utf8,
    extendedchars=true,
    literate=
      {á}{{\'a}}1 {é}{{\'e}}1 {í}{{\'i}}1 {ó}{{\'o}}1 {ú}{{\'u}}1
      {Á}{{\'A}}1 {É}{{\'E}}1 {Í}{{\'I}}1 {Ó}{{\'O}}1 {Ú}{{\'U}}1
      {à}{{\`a}}1 {è}{{\`e}}1 {ì}{{\`i}}1 {ò}{{\`o}}1 {ù}{{\`u}}1
      {À}{{\`A}}1 {È}{{\'E}}1 {Ì}{{\`I}}1 {Ò}{{\`O}}1 {Ù}{{\`U}}1
      {ä}{{\"a}}1 {ë}{{\"e}}1 {ï}{{\"i}}1 {ö}{{\"o}}1 {ü}{{\"u}}1
      {Ä}{{\"A}}1 {Ë}{{\"E}}1 {Ï}{{\"I}}1 {Ö}{{\"O}}1 {Ü}{{\"U}}1
      {â}{{\^a}}1 {ê}{{\^e}}1 {î}{{\^i}}1 {ô}{{\^o}}1 {û}{{\^u}}1
      {Â}{{\^A}}1 {Ê}{{\^E}}1 {Î}{{\^I}}1 {Ô}{{\^O}}1 {Û}{{\^U}}1
      {œ}{{\oe}}1 {Œ}{{\OE}}1 {æ}{{\ae}}1 {Æ}{{\AE}}1 {ß}{{\ss}}1
      {ç}{{\c c}}1 {Ç}{{\c C}}1 {ø}{{\o}}1 {å}{{\r a}}1 {Å}{{\r A}}1
      {€}{{\EUR}}1 {£}{{\pounds}}1
}
...
\begin{lstlisting}[language=C]
#include <stdio.h>
int main() {
    printf ("hello world\n");
}
\end{lstlisting}

The “minted” package

The “minted” package uses Pygments for highlighting the code which supports just about any language you can think of. There is a good tutorial for the use of minted in the Overleaf docuemntation pages.

\usepackage{minted}
...
\begin{minted}{C}
#include <stdio.h>
int main() {
    printf ("hello world\n");
}
\end{minted}