If you trust your input data (and I mean, really trust it), there is eval.

Otherwise, whitelisting the variables is the sanest approach, and then basically doing s/\$(\w+)/$1/gee.

Personally, I wouldn't allow a template to access arbitrary variables in the script and always decouple the template variable names from the inner workings of the program by using a hash, just like String::Interpolate does.

In reply to Re: Invoke the Perl string interpolation engine on a string contained in a scalar variable. by Corion
in thread Invoke the Perl string interpolation engine on a string contained in a scalar variable. by ibm1620

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