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Message: [QUOTE="Robert Klemme, post: 4469869"] *eval grin* My guess is that the string probably contained something different than Adelle expected. Adelly, did you try to output your string with "p" before you eval it? Might be interesting to see what's really in there. As an illustration what I mean: (eval):1: warning: parenthesize argument(s) for future version SyntaxError: (eval):1:in `irb_binding': compile error (eval):1: syntax error unless thing puts 'y' else puts 'n' end ^ (eval):1: syntax error unless thing puts 'y' else puts 'n' end ^ from (irb):9 from (irb):9n => nil I.e. you probably do not have the line breaks in your string and since you don't use "then" syntax is not correct. It doesn't work in a normal line without "then" also: (irb):11: warning: parenthesize argument(s) for future version SyntaxError: compile error (irb):11: syntax error unless thing puts 'y' else puts 'n' end ^ (irb):11: syntax error from (irb):11 Kind regards robert [/QUOTE]