Yeah, sam is not universal, but it can solve complex tasks more simply by just running it a few times. The final example already normalizes \n (v/./ c/\n/) in a single pass, but we can make it even simpler by just writing:

    , x/(.+\n)+/ .,+#0-#1 x/\n/ c/ /
    , x/\n+/ c/\n/

(I haven’t tested it.)

I’m glad that sam worked out for you. You can learn more from [1] and [2]. If you need any help, you’re always welcome to ask me.

[1]: https://ratfactor.com/papers/sam_tut.pdf

[2]: https://9p.io/sources/contrib/steve/other-docs/struct-regex....