From: Wai-Sun Chia <waisun.chia@...>
Date: 2001-09-04T02:13:52+09:00
Subject: [ruby-talk:20792] Indirect eval doesn't work??

Dear Rubyists,
I have this Ruby code:

================== foo.rb ====================
#!/usr/bin/ruby

code = ""
File.open ("foo.tmpl" ,"r") { |fd|
         fd.each { |line|
                 code << line
         }
}

class Foo
end

puts Foo.public_instance_methods.inspect
print code
eval code
puts Foo.public_instance_methods.inspect
==============================================

And this data file:

================= foo.tmpl ===================
class Foo
         bar = 9999
         def foo_#{bar}
                 puts "this is in foo"
         end
end
==============================================

When I run it, I get:
[]
class Foo
         bar = 9999
         def foo_#{bar}
                 puts "this is in foo"
         end
end

["foo_"]


Why is it that #{bar} doesn't get extrapolated?
Basically what I'm doing is just trying to define a method dynamically 
based on some string....



-- 
Wai-Sun "Squidster" Chia
RHCE/Professional Services
Linux/Unix/Web Developer