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Meaning of GRAMMAR

Pronunciation:  'gramur

 
Matching Terms:  gramma, gramma grass, grammalogue, grammar analysis, grammar school, grammarian, grammarianism, grammarless, grammates, grammatic, grammatical, grammatical case, grammatical category, grammatical constituent, grammatical construction, grammatical gender, grammatical inference, grammatical meaning, grammatical relation, grammatical rule, grammatical structure, grammatically, grammaticaster, grammatication, grammaticism, grammaticize, grammatist, grammatolatry, grammatophyllum

Computing Dictionary
 
 Definition: 

A formal definition of the syntactic structure of a language (see syntax), normally given in terms of production rules which specify the order of constituents and their sub-constituents in a sentence (a well-formed string in the language). Each rule has a left-hand side symbol naming a syntactic category (e.g. "noun-phrase" for a natural language grammar) and a right-hand side which is a sequence of zero or more symbols. Each symbol may be either a terminal symbol or a non-terminal symbol. A terminal symbol corresponds to one "lexeme" - a part of the sentence with no internal syntactic structure (e.g. an identifier or an operator in a computer language). A non-terminal symbol is the left-hand side of some rule.

One rule is normally designated as the top-level rule which gives the structure for a whole sentence.

A grammar can be used either to parse a sentence (see parser) or to generate one. Parsing assigns a terminal syntactic category to each input token and a non-terminal category to each appropriate group of tokens, up to the level of the whole sentence. Parsing is usually preceded by lexical analysis. Generation starts from the top-level rule and chooses one alternative production wherever there is a choice.

See also bnf, yacc, attribute grammar, grammar analysis.

 
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