From: Stefan Kaes <skaes@...>
Date: 2005-03-15T23:02:44+09:00
Subject: eval/binding question

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I tried to create local variables from a name=>value hash passed as a 
parameter, but I can't get it to work. The following test program shows 
what is happening:

    def test1
      eval "x=25"
      eval 'print "x=#{x}\n"'
    end

    test1

    def test2
      eval "x=25"
      print "x=#{x}\n"
    end

    test2

produces:

    x=25
    test.rb:189:in `test2': undefined local variable or method `x' for
    main:Object ( NameError)
            from test.rb:192

It seems that changes to local variables are not reflected back to the 
executing environment.

Does anyone out there know how to solve this problem?

-- stefan


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