Hi Monks,
I'd like to have an text entry box on a web page to allow users to enter math expresions and calculate them. Naturally, I first thought of using eval perl, something like: 
$result = eval " $1 $2 $3 ";

[download]
where $1 and $3 are the numbers, and $2 is the operator.
However, the potential for disaster is fairly large, so I'm wondering is there a safer way of doing this not using eval?

In reply to eval question by Anonymous Monk

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