[ryandv]

Since Naur is on the front page again [0] it may be worth mentioning that one would do well to know how to read grammars and the ABNF [1] that shows up time and time again throughout RFCs.

[0] https://news.ycombinator.com/item?id=37263121

[1] https://www.rfc-editor.org/rfc/rfc5234