The magical each_* solution!

[wtd]

code:

class Object     def method_missing(msg, *args)         if (msg.to_s =~ /^each_([a-z][a-z\d_]*)$/i and method_name = $1.to_sym) and ((respond_to? method_name and begin (c = send method_name, *args).respond_to? :each rescue false end) or (respond_to? :"#{method_name}s" and begin (c = send :"#{method_name}s", *args).respond_to? :each rescue false end))             c.each { |x| yield x }         else             super         end            end end

code:

$ irb --prompt simple >> class Foo >>     def bar >>         [1, 2, 3] >>     end >> end => nil >> Foo.new.each_bar { |x| puts x } 1 2 3 => [1, 2, 3] >>

[wtd]

This code appears not to work, and I have very little idea why not. Anyone want to take a crack at it?

code:

class Object     def method_missing(msg, *args)         msg.to_s =~ /^each_([a-z][a-z\d_]*)$/i and method_name = $1.to_sym and c = (respond_to_and_enumerable(method_name, *args) or respond_to_and_enumerable(:"#{method_name}s", *args)) ? c.each { |x| yield x } : super     end     def respond_to_and_enumerable(msg, *args)         (result = send msg, *args).respond_to? :each and result     rescue ArgumentError         false     end end

[wtd]

Fixed!

code:

class Object     def method_missing(msg, *args)         (msg.to_s =~ /^each_([a-z][a-z\d_]*)$/i and method_name = $1.to_sym and c = (respond_to_and_enumerable method_name, *args or respond_to_and_enumerable :"#{method_name}s", *args)) ? c.each { |x| yield x } : super     end     def respond_to_and_enumerable(msg, *args)         (result = send msg, *args).respond_to? :each and result     rescue ArgumentError         false     end end

[wtd]

And one more slightly different version:

code:

class Object     def method_missing(msg, *args)         msg.to_s =~ /^each_([a-z][a-z\d_]*)$/i and method_name = $1.to_sym and c = (respond_to_and_enumerable method_name, *args or respond_to_and_enumerable :"#{method_name}s", *args) and c.each { |x| yield x } or super     end     def respond_to_and_enumerable(msg, *args)         (result = send msg, *args).respond_to? :each and result     rescue ArgumentError         false     end end

[Cervantes]

Nice, wtd. I do so love method_missing. I was thinking of something similar, well, about a year ago. I should really try to implement it.