Use cases
The Interpreter pattern is used when we want to offer a simple language to domain experts and advanced users to solve their problems. The first thing we should stress is that Interpreter should only be used to implement simple languages. If the language has the requirements of an external DSL, there are better tools to create languages from scratch (yacc and lex, Bison, ANTLR, and so on).
Our goal is to offer the right programming abstractions to the specialist, who is often not a programmer, to make them productive. Ideally, they shouldn't know advanced Python to use our DSL, but knowing even a little bit of Python is a plus since that's what we eventually get at the end. Advanced Python concepts should not be a requirement. Moreover, ...
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