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    This is an excellent mid-level article on building interpreters. Usually I was only able to find either basic interpreter implementations or very advanced ones which I did not fully understand. Not a huge fan of the language choice as I believe building simple Lisp or Python interpreter would be more useful.

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      Couldn’t agree more regarding the leveling of this write-up. I do however really appreciate that the author chose Brainfuck specifically to avoid the quagmire of source language parsing which I so commonly find as the bulk of the content in other interpreter/compiler literature.