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content/blog/latexcode.md

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+---
+title: "Code in LaTex"
+date: 2020-04-30T23:46:05-04:00
+draft: false
+tags: []
+---
+
+I am currently working on a paper in LaTex and wanted to include some source code in it. I didn't want to use the default `verbatim` environment since I wanted to include syntax highlighting as well. Luckily, the `listings` package is an easy and extensible way to include source code inside LaTex documents. To speak first of its extensibility, here is a subset of the arguments that it can possibly take:
+
+| Argument          | Description                                                  |
+| ----------------- | ------------------------------------------------------------ |
+| aboveskip         | Amount of space to include above code.                       |
+| backgroundcolor   | Background color                                             |
+| basicstyle        | Font-style of code (Color & Size)                            |
+| belowskip         | Amount of space to include below code.                       |
+| breakatwhitespace | Only break at whitespace (boolean)                           |
+| breaklines        | Automatic Line Breaking (boolean)                            |
+| commentstyle      | Font-style of comments (Color & Size)                        |
+| frame             | Type of frame: `l` for left, `r` for right, `t` for top, `b` for bottom; can use combination of letters or `single`. |
+| keywordstyle      | Font-style of keywords (Color & Size)                        |
+| language          | Language of code (for highlighting purposes)                 |
+| numbers           | Where to put the numbers: `none`, `left`, or `right`.        |
+| numbersep         | How far the line-numbers are from the code.                  |
+| numberstyle       | Font-style of numbers (Color & Size)                         |
+| stringstyle       | Font-style of strings in code (Color & Size)                 |
+| tabsize           | Default tab size in terms of spaces.                         |
+| title             | Show filename included in `\lstinputlistings` or caption.    |
+
+Here is an example of code that I used in a paper
+
+```latex
+\usepackage{color}
+\usepackage{listings}
+\definecolor{keyblue}{rgb}{0.1, 0.1, 0.6}
+\definecolor{dkgreen}{rgb}{0,0.6,0}
+\definecolor{gray}{rgb}{0.5,0.5,0.5}
+\definecolor{stringcol}{rgb}{0.58,0.4,0.1}
+
+\lstset{frame=l,
+  language=Python,
+  aboveskip=3mm,
+  belowskip=3mm,
+  columns=flexible,
+  basicstyle={\small\ttfamily},
+  numbers=left,
+  numberstyle=\tiny\color{gray},
+  numbersep=2mm,
+  keywordstyle=\color{keyblue},
+  commentstyle=\color{dkgreen},
+  stringstyle=\color{stringcol},
+  breaklines=true,
+  tabsize=4
+}
+
+\begin{lstlisting}
+def greeting():
+	return "Hello!"
+
+# Printing the greeting to the screen
+print(greeting())
+\end{lstlisting}
+```
+
+![image-20200501001231572](/files/images/20200501001231572.png)