I’ve inherited some CWEB code from a colleague. My interpretation is that you write it like stream of consciousness, interleaving thinking and chucks of code. Not all code your write ends up in the final C file.

However, the final effect is spaghetti code (you can surrogate “goto” by injecting code in different locations.) And docs are hard to read.

But, it really forces you to explain what you do and how you got there, which is incredibly useful for reconstructing history. (Theirs is also a sort of diff file for it, I think with .ch extension, to amend files.)