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Formal grammar - Wikipedia
A formal grammar describes which strings from an alphabet of a formal language are valid according to the language's syntax. A grammar does not describe the meaning of the strings or what can be done with them in whatever context—only their form. A formal grammar is defined as a set of production rules … 展开
A grammar mainly consists of a set of production rules, rewriting rules for transforming strings. Each rule specifies a replacement of a particular string (its left-hand side) with another (its right-hand side). A rule can be … 展开
When Noam Chomsky first formalized generative grammars in 1956, he classified them into types now known as the Chomsky … 展开
Though there is a tremendous body of literature on parsing algorithms, most of these algorithms assume that the language to be parsed is initially described by means of a generative formal grammar, and that the goal is to transform this generative grammar into … 展开
The syntax of grammars
In the classic formalization of generative grammars first proposed by Noam Chomsky in the 1950s, a grammar G consists of the following components:
• A finite set N of nonterminal symbols, that is disjoint 展开CC-BY-SA 许可证中的维基百科文本 Formal language - Wikipedia
Grammar - Wikipedia
Formal grammar - Simple English Wikipedia, the free encyclopedia
Formal grammar - Wikiwand
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Formal grammar - Wikipedia, the free encyclopedia
30 Linguistic Typology and Formal Grammar - Oxford Academic