Automated Syntax Testing Using Jsyntesttm
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چکیده
grammar ThreeFieldGrammar; structure { start: field1 & separator & field2 & separator & field3 & "\n"; separator: "-"; abstract field1; abstract field2; abstract field3; } An abstract grammar captures an incomplete specification. A non-terminal node must be declared abstract if it does not have a corresponding RHS. A grammar that has at least one abstract node must be declared abstract. A derived grammar typically provides the definition (that is, RHS) for the abstract node. In case the derived grammar does not provide the definition for any inherited abstract node, then the grammar must be declared abstract. An abstract grammar that defines one
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