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It was a long time ago, Im only starting ERLANG using, and desided to write scripting extension for ERLANG.
At this moment I dont know about ESCRIPT or maybe it yet was not written.
I write first verison of ERLS.
Next, I thougth about conceptual vulneriability for metacomputing. Any system function can be called inside script usually it great, but sometime it can be danger by security reason.
And I joing to it option for filtration functions calls and allow it by rules.
Dmitry Podkorytov