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Re: difficulty of writing translators


> This is perfectly reasonable.  The trick is not letting people
> accidentally change the value without running the code.  It seems
> valuable to have a standard. 

That I agree with entirely.

The major advantage to variable watches is that you get an interface
that (at least superficially) needs no explanation, and you *know*
your code had a chance to run when someone changed that var.

Set/get functions provide the latter property, but they only provide
the former if there's a standard.