From: Joel VanderWerf <vjoel@...>
Date: 2002-12-03T17:31:06+09:00
Subject: Re: [FAQ] [Revised again] What are the non-alphanumerical symbols in Ruby code?

Gavin Sinclair wrote:
> ----- Original Message ----- 
> From: "Tim Sutherland" <timsuth@ihug.co.nz>
...
>>It would be nice if you mentioned that in this case << is just a method
>>which people can define on their own classes.
> 
> 
> Done.
> 

Just for kicks, I cranked out all(*) tokens that can be defined as methods:

[] == >> & - <=> + << === ~ =~ []= * | ** / % ^ -@ < >= <= > +@

Gavin, if there's a place for it, maybe you could list these, too?

Note that -@ and +@ are the method names for unary - and +.

--
(*) or at least all that are defined in built-in ruby modules, as
found by this snippet:

mods = []; ObjectSpace.each_object(Module) {|m|mods << m}
meths = mods.map {|m| m.instance_methods}.flatten
non_alphanumeric_meths = meths.grep(/\A[^\w]+\z/).uniq
puts non_alphanumeric_meths.join(" ")