Can someone point me to the documentation for their cweb-equivalent (weave/tangle etc.)? Just interested if their definition of literate includes "macros", or j

Can someone point me to the documentation for their cweb-equivalent (weave/tangle etc.)? Just interested if their definition of literate includes "macros", or just the semi-literate stuff you see more commonly these days (i.e. inverted comments, without restructuring). Might also be just a fancy word for "we use begin/end, not braces".