BNF grammar

In computer science land, There's a notation so grand, It's called Backus-Naur Form, you see, To describe languages, it's the key. John Backus and Peter Naur, Developed this form, for sure, It's a metasyntax notation, oh so neat, For context-free grammars, it can't be beat. Wherever exact descriptions are required, Like in language specs, it's admired, In manuals and textbooks, it's used, To explain programming language rules, enthused. But wait, there's more to explore, Extensions and variants galore, EBNF and ABNF, they're in the mix, Adding more power, like a magic tricks. So next time you're learning about code, Remember Backus-Naur, on your road, It helps describe languages, it's true, And makes programming a breeze for you! Random page: FXYD5 (gene)