How do you actually invent a new programming language? Where do you start first and what are the next steps?

Question

does it make a difference at first whether i want to create a scripting or compiled programming language?

Answer 1

You need to known about lexical analysers and theory of complilers and interpreters.

Also you need to define what is the porpouse of your new programming language, the syntax, and the semantics

Answer 2

Yeah the choice of type of language makes a huge difference. Scripting languages tends to be interpreted languages that gets converted to byte code and compiled languages gets converted to executables. Compilers and interpreters makes a big difference when you start a language