Question: What's an adjective to describe Rant Lang / what category of software does this fall under?

It says on the readme, "Rant is a dynamically-typed, multi-paradigm templating language designed primarily for procedural generation." So, would calling it a text templating language be right, or is there another phrase that describes it better and or in a more common way? I never heard of software like this, what other pieces of software are there are comparable to Rant lang?