On Jun 11, 10:48 am, James Britt <james.br... / gmail.com> wrote:
> Grehom wrote:
> > Thanks for quick response, I've found other functions seem to be
> > working ok, for example ri String#unpack, produced what my Pickaxe
> > book tells me about.  But I did wonder where someone without the book
> > would get documentation on that function.
>
> http://ruby-doc.org/

...except that in the OP's problem, ruby-doc gets its information from
RDoc, and hence also has broken/missing information on String#tr