From: ts Date: 2002-12-04T00:33:08+09:00 Subject: Re: Conditional block operations >>>>> "S" == Shannon Fang writes: S> file.grep? I checked that grep is a method of Enumerable. is it suitable for S> file? if so, it is a class method or instance method? Enumerable is included in IO pigeon% ruby -e 'p IO.ancestors' [IO, Enumerable, Object, Kernel] pigeon% Guy Decoux