Constructing a simple interpreter

Question

I’m starting a project where I need to implement a light-weight interpreter. The interpreter is used to execute simple scientific algorithms. The programming language that t

Answer 1

I am surprised no one has mentioned xtext yet. It is available as Eclipse plugin and IntelliJ plugin. It provides not just the parser like ANTLR but the whole pipeline (including parser, linker, typechecker, compiler) needed for a DSL. You can check it's source code on Github for understanding how, an interpreter/compiler works.