From: "Peña, Botp" <botp@...>
Date: 2007-05-11T12:16:37+09:00
Subject: Re: ri

From: seebs@seebs.net [mailto:seebs@seebs.net] 
# I have 'ri', but it doesn't know about any of the standard library
# classes or built-ins.  So, "ri Array" says it's never heard of it,
# same with "ri CGI".  

it should.

root@pc4all:~# qri Array
----------------------------------------------------------- Class: Array
     Arrays are ordered, integer-indexed collections of any object.
     Array indexing starts at 0, as in C or Java. A negative index is
     assumed to be relative to the end of the array---that is, an index
     of -1 indicates the last element of the array, -2 is the next to
     last element in the array, and so on.

------------------------------------------------------------------------

Includes:
     Enumerable(all?, any?, collect, detect, each_cons, each_slice,
     each_with_index, entries, enum_cons, enum_slice, enum_with_index,
     find, find_all, grep, include?, inject, map, max, member?, min,
     partition, reject, select, sort, sort_by, to_a, to_set, zip)
[snip]


works here on my linux and windows boxes.
kind regards -botp