Is there a document that is good for understanding the output of "nft list"? (more specifically the kind of output that comes from "nfs list ruleset") In particular I'm looking for a description of the syntax. I've been browsing around https://www.netfilter.org/ and I've been having trouble finding the kind of information that I'm looking for. The first questions I have: Can/should I assume that each line in the output of "nft list" is a separate, uh... "thing"[1] that can be (human-)parsed independently from every other line? Is there something that signifies "this line should be considered as part of the same Thing as the last/next line"? Should I be reading each line/"thing" from left to right in my attempt to parse/understand it? This is complicated by the fact that the current firewall config is generated by a "front end" package, which I'm also trying to learn. I wonder if the output from "nft list" represents some weird syntax generated by the front end package. Can I assume that the output of "nft list" is _valid_ syntax? [1] - I'm not sure if "expression", "statement", or "rule", or something else, is an appropriate word to use here.
