[Addanc-developer] Decoupling the iterator from vcScript

[Doug F. <dou...@do...>]

I now understand why we need a deep copy of the script in every VC. The function
vcScript.run() acts as an iterator on the _scriptList.

I propose replacing vcScript.run() with an explicit __iter__ member that creates
a vcScriptIter object to hold the iteration state for each VC. This actually
wouldn't be much more efficient than the deep copy, but I think it would be
clearer (at least to me).

I would like to code up an example, unless you have other priorities.
--
Doug Fort
Addanc
Downright Software Collective
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