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Adding Documentation on using Syntax Highlighting

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---
title: "Highlighting"
date: "2013-07-01"
groups: ["extras"]
groups_weight: 15
---
Hugo provides the ability for you to highlight source code from within your
content. Highlighting is performed by an external python based program called
pygments and is triggered via an embedded shortcode. If pygments is absent from
the path, it will silently simply pass the content along unhighlighted.
## Disclaimers
* **Warning** Pygments is relatively slow and our integration with it isn't
speed optimized. Expect much longer build times when using highlighting
* The languages available depends on your pygments installation.
* While pygments supports a few different output formats and options we currently
only support output=html, style=monokai, noclasses=true, and encoding=utf-8.
* Styles are inline in order to be supported in syndicated content when references
to style sheets are not carried over.
* We have sought to have the simpliest interface possible, which consequently
limits configuration. An ambitious user is encouraged to extend the current
functionality to offer more customization.
## Usage
Highlight takes exactly one required parameter of language and requires a
closing shortcode.
## Example
{{% highlight html %}}
{{% highlight html %}}
<section id="main">
<div>
<h1 id="title">{{ .Title }}</h1>
{{ range .Data.Pages }}
{{ .Render "summary"}}
{{ end }}
</div>
</section>
{{&#37; /highlight %}}
{{% /highlight %}}
## Example Output
{{% highlight html %}}
<span style="color: #f92672">&lt;section</span> <span style="color: #a6e22e">id=</span><span style="color: #e6db74">&quot;main&quot;</span><span style="color: #f92672">&gt;</span>
<span style="color: #f92672">&lt;div&gt;</span>
<span style="color: #f92672">&lt;h1</span> <span style="color: #a6e22e">id=</span><span style="color: #e6db74">&quot;title&quot;</span><span style="color: #f92672">&gt;</span>{{ .Title }}<span style="color: #f92672">&lt;/h1&gt;</span>
{{ range .Data.Pages }}
{{ .Render &quot;summary&quot;}}
{{ end }}
<span style="color: #f92672">&lt;/div&gt;</span>
<span style="color: #f92672">&lt;/section&gt;</span>
{{% /highlight %}}