case class Grammar(ruleset: Set[Rule], top: TopRule, generators: Set[RuleGenerator] = Set.empty[RuleGenerator]) extends Product with Serializable
A grammar is a set of rules, with an optional Top rule (for top-down traversal) *
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- new Grammar(ruleset: Set[Rule], top: TopRule, generators: Set[RuleGenerator] = Set.empty[RuleGenerator])
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- def applyGenerators(sym: Sym): Set[Rule]
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- val generators: Set[RuleGenerator]
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- lazy val rules: Set[Rule]
- lazy val rulesByFirstRhs: Map[Sym, Set[Rule]]
- lazy val rulesByLhs: Map[Sym, Set[Rule]]
- def rulesThatExpand(sym: Sym): Set[Rule]
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def
rulesWhoseRhsStartsWith(sym: Sym): Set[Rule]
Find rules that start with a given symbol *
- val ruleset: Set[Rule]
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- val top: TopRule
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