I need to enlighten some newbies re the usage of string eval. I want to show relatively small and simple examples in which string eval saves the day, beating the other approaches. That is, the examples have to be real-life, something that shows "live" how the eval is useful, not toy examples.

It is preferable to see code generation examples (I suspect that most real useful uses of string eval are for on-the-fly code generation).

Your help will be most appreciated. Thanks in advance