Post ruby or html, css, sql sourcecode in your wordpress.com blog

To correctly post Ruby (or HTML, CSS, SQL, etc.) source code you should use the following tags, and not the useless <code> tag. This way you don’t need to escape the HTML tags, the code will be highlighted and numbered.

I found out about this just now, so posting it for anyone who might get into the same trouble.

[sourcecode language='ruby']
5.times do
something
end
[/sourcecode]

This will show up like this:

5.times do
 something
end

I do not see any way to add a shortcut to this on the “Edit/Create Post”, so it’s not as comfortable as it could be, but still much better than using an external converter.

You can use one of the following params for the language attribute:
bash
cpp
csharp
css
delphi
html
java
jscript
php
python
ruby
shell
sql
vb
xml

More info here