"Robert Klemme" <bob.news / gmx.net> wrote in message
> try this
>
> $>ruby -e 'str = "a = 2"; eval(str, binding); puts a'

    C:\>ruby -ve 'str = "a=2"; eval(str,binding); puts a'
    ruby 1.8.0 (2003-05-26) [i386-mswin32]
    -e:1: undefined local variable or method `a' for main:Object (NameError)

    C:\>ruby -ve 'str = "a=2"; eval(str,TOPLEVEL_BINDING); puts a'
    ruby 1.8.0 (2003-05-26) [i386-mswin32]
    -e:1: undefined local variable or method `a' for main:Object (NameError)

> You need to give the current context for locals, otherwise eval creates
> its own scope.

Simply doing that did not work. There _must_ be some way ... how else
could  irb make it work ?