Fast and easy syntax highlighting for selected languages, written in Ruby. Comes with RedCloth integration and LOC counter.

We use this library at GitHub to detect blob languages, highlight code, ignore binary files, suppress generated files in diffs, and generate language breakdown graphs.

Code syntax highlighting plugin via rouge for Middleman

Highlight highlights code in more than 20 languages. It uses the Pygments syntax highlighter and adds a simple Ruby API over it. It also provides helpers for use in your Ruby on Rails views.

It makes working with pure SQL easier with syntax highlighting. Let's you clean your Ruby code from SQL strings.

Parade is an open source presentation software that consists of a Sinatra web app that serves up markdown files in a presentation format. Parade can serve a directory or be configured to run with a simple configuration file. * Markdown backed data > This ultimately makes it easier to manage diffs when making changes, using the content in other documents, and quickly re-using portions of a presentation. * Syntax Highlighting > Using GitHub flavored markdown, code fences will automatically be syntax highlighted, making it incredibly easy to integrate code samples. * Code Execution > Slides are able to provide execution and show results for JavaScript and Coffeescript live within the browser. This allows for live demonstrations of code. * Web > Slide presentations are basically websites -- they run in your browser from your desktop. This allows for a wide range of possibilities for customization and expandability. * Basic Templating and Color Schemes > Several templates and color scheme options have been provided to help you get started. While Parade does not currently provide anything near the variety of many other presentation packages, it is well-suited for basic presentations. * Design Flexibility (pros and cons) > Unless you're skilled in CSS/Animations, you will likely have a harder time creating presentations with as much polish as other programs provide. However, this approach also makes Parade incredibly flexible if you do understand CSS/Animations.

Rack Middleware for Code Highlighting.

This is a remarkably trivial package that makes simply HTML-based presentations from a set up source files written using Textile. It's designed to help when creating slides that contain lots of code, as it allows code to be embedded from external source files. This means that the code that you embed can come from running (and tested) programs. The code in the resulting slides is syntax highlighted, and is hyperlinked to the original source file, allowing that file to be brought up in Textmate.

Converts source code into a (bookmarked, themed, and syntax highlighted!) PDF.

Render any text as markdown, with code highlighting and all!

Rack Middleware for Code Highlighting. Supports the most popular Ruby code highlighters.

Converts text formatted with an exceedingly simple markup language into valid HTML (iron clad guarantee!) - perfect for comments on your blog. Textile isn't good for this because not only does it do too much (do commenters really need subscript?), but it can also output invalid HTML (try a <b> tag over multiple lines...). Whitelisting HTML is another option, but you still need some sort of parsing if you want syntax highlighting. Integrates with CodeRay for sexy syntax highlighting.

Octopress's core plugin for rendering nice code blocks

Rouge code highlighter support for Asciidoctor

Uses JSON, Nokogiri and CodeRay to highlight and prettify JSON, XML, HTML, Ruby and anything else CodeRay supports!

Adds CodeRay syntax highlighting support to RedCloth, with a ‘source’ tag.

Bash highlighting for coderay. This gem was tested with coderay 1.0 and won't work with coderay &lt; 1.0.

A rails gem to display your code properly on webpages using syntaxHighlighter

Adds a CodeRay syntax highlighting filter to Haml

git diff with code syntax highlight