We'll create fresh WordPress site with iG:Syntax Hiliter installed. You have 20 minutes to test the plugin after that site we'll be deleted.
iG:Syntax Hiliter allows you to post source code to your site with syntax highlighting and formatting (as seen in code editors, IDEs). You can paste the code as is from your code editor or IDE and this plugin will take care of all the code colouring and preserve your formatting. It uses the GeSHi library to colourize your code and supports over a 100 programming languages. Most common languages are included with the plugin and it includes drop in support for more languages used by GeSHi.
NOTE : For fast results and less load on your server, you should have a cache plugin installed. That way the plugin won’t have to parse the code blocks on a post every time its loaded in browser.
Pull requests are welcome on Github.
Github: https://github.com/coolamit/ig-syntax-hiliter/
Documentation on plugin usage and configuration