KnowraFormal grammarLinked fromLinked fromThe 12 pages that link to Formal grammar, each with the reason it gives.All 12Broader topic 2Related 4Narrower topic 6Context-free grammarNarrower topic: Context-free grammars are one precisely defined kind of formal grammar.ParsingNarrower topic: Parsing tests strings against the rules that define a formal language.John BackusNarrower topic: Backus–Naur form expresses programming-language syntax as production rules.Chomsky hierarchyNarrower topic: Each class in the hierarchy is defined by restrictions on grammar rules.ParserNarrower topic: A parser uses grammar rules to decide how tokens may be grouped.MetasyntaxNarrower topic: Metasyntaxes encode formal grammars as readable or machine-processable notation.