Library Reference : ri :: Language Reference :?

ri is cool – library reference at your fingertips (literally ;))

Is there a gem that helps me do something similar with language
reference with syntax and an example or two? For instance,

$ rubyi
-> case
–> multiway decision control structure
–> example: tax = case income
when … then …
when … then …
else
end

-> rescue
… etc.

Regards,
Kedar

On Jan 15, 2011, at 11:10 , Kedar M. wrote:

               when ... then ...
               else
             end

-> rescue
… etc.

Here is a quick and dirty start: