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.

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

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.

Code syntax highlighting plugin via rouge for Middleman

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.

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

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.

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

Octopress's core plugin for rendering nice code blocks

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

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

The goal of this project is to provide an easy & frictionless way to edit an online tech documentation. The sweet spot of this editor is to be able to generate pages containing multiple snippets of highlighted code & conditional sections (which wasn't really available in any other CMS we considered). It also includes a nice image uploader storing the image to Amazon S3, a simple table editor and an automatic table of content generator.

Rouge code highlighter support for Asciidoctor

This is a syntax highlighter plugin for Kramdown that leverages Tree-sitter's native syntax highlighter to highlight code blocks (and spans) when rendering HTML. Tree-sitter is a modern, general-purpose parsing library that outclasses many existing tools at the task of syntax highlighting. This plugin adapts Tree-sitter's native highlighter for Kramdown, so that Tree-sitter's superior highlighting capabilities can be easily leveraged in the context of rendering Markdown.

Embed highlighted code snippets from a file.

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

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.

git diff with code syntax highlight