maybe this is just a little misunderstanding but how can a programming language be implemented?
I'm not talking about how to implement my own programming language but about the word "implemented"?
I mean, you can implement a compiler or an interpreter, but a programming language?
What does it mean if I read "C++ is implemented in C" or "Python was implemented in C"?
I think a language is more sth. like a protocol of how someone thinks about things should be implemented. For example, if he wants do display a messagebox he can say the command for this is ShowMessageBox(string) and implement a compiler who will translate this into something that works on a computer (aside from the selected programming paradigms he imagines).
I think this question leads to the question "what is a programming language in reality"? A compiler, an interpreter or just a documented language standard about how things should be implemented in a language?
Answer: Languages are never implemented, only compilers/interpreters etc. It's this simple.