This plugin hasn’t been tested with the latest three major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.



WP-Markdown-SyntaxHighlighter is intended to work with the wp-markdown and SyntaxHighlighter Evolved plugins as follows:

  • WP-Markdown can automatically use Prettify.js to format code, but if you prefer Alex Gorbatchev’s SyntaxHighlighter, this plugin will re-format the Markdown-formatted code blocks to be properly styled by SyntaxHighlighter directly or SyntaxHighlighter Evolved via plugin.
  • SyntaxHighlighter Evolved uses SyntaxHighlighter and additional extended functionality to display code blocks in an easily readable manner.

There are two methods of use:

  1. Add a #! line to your code example and specify the language (brush) only
  2. Add a #!! line to your code example and specify any/all supported parameters via a JSON object

Simple Method

To use, add a #! line as the first line of your code example with the language you are using:

class Foo < Bar
  def hello
    puts "Hello World!"

The #! is removed, and the code is reformatted as:

<pre class="brush:ruby; notranslate" title="">class One < Two
  def hello
    puts "Hello World!"

Full Method

To use, add a #!! line as the first line of your code example, with any of the supported SyntaxHighlighter parameters as a JSON object

class Foo < Bar
  def hello
    puts "Hello World!"

The #!! is removed, and the parameters are interpreted into a CSS class string as:

<pre class="brush: ruby; toolbar: true; highlight: [2,3,4]; notranslate">class Foo < Bar
  def hello
    puts "Hello World!"


  • Consider adding support to toggle ‘notranslate’


  1. Upload the wp-markdown-syntaxhighlighter folder (and its contents) to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress
  3. Modify improperly formatted code blocks with your chosen #! or #!! formatting.


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Contributors and Developers

“WP-Markdown-SyntaxHighlighter” is open source software. The following people have contributed to this plugin.


Change Log


  • Switched from preg_replace() to preg_replace_callback for ()
  • Removed some potentially harmful formatting code
  • Hat tip to Richard Cyrus for suggesting these changes


  • Updated licensing to GPL 2 in order to post in WP plugin directory
  • Cleaned up some comments, code formatting


  • Fixed case where both syntaxes could not be used in a single post
  • Added support for the title parameter (default: empty)


  • Refactored strings to constants
  • Fixed a typo


  • Added #!! syntax to support extended parameters from JSON string
  • Added support for the following parameters:
    • auto-links (default: true)
    • class-name (default: ”)
    • collapse (default: false)
    • first-line (default: 1)
    • gutter (default: true)
    • highlight (default: null, format is a number or array of numbers)
    • html-script (default: false)
    • ruler (default: false)
    • smart-tabs (default: true)
    • title (default: null) NOTE: This does not set the title attribute on the <pre> tag yet.
    • tab-size (default: 4)
    • toolbar (default: true)


  • Initial release