Re: Scoping and locating definitions

Jos Backus schrieb:
> After looking at this I'm not sure how this helps me. Can you give an example
> please?

Jos, here's your original example using import-module:

lib.rb:

   require "import-module"

   module LibStringEnhancements
     def rot13
       tr 'A-Za-z', 'N-ZA-Mn-za-m'
     end
   end

   def within_lib
     String.import_module LibStringEnhancements do
       yield
     end
   end

   class Foo
     def initialize(s)
       @s = s
     end

     def bar
       within_lib do
         @s.rot13
       end
     end
   end

r.rb:

   require 'lib'

   f = Foo.new("string")
   p f.bar                         # => "fgevat"

   p 'abc'.rot13 rescue puts $!    # => undefined method (...)

   within_lib do
     p 'abc'.rot13                 # => "nop"
   end

I haven't really used import-module yet, so I can't tell you much about 
it. The code above just shows how I would try to solve your problem.

Feel free to ask again if this isn't what you wanted or if you have more 
questions.

Regards,
Pit