Interface Grammar

name

rules

superGrammar

createSemantics

• createSemantics(): Semantics

• Create a new Semantics object for this Grammar.

  Returns Semantics

extendSemantics

• extendSemantics(superSemantics): Semantics

• Create a new Semantics object for this Grammar that inherits all of the operations and attributes in superSemantics. This Grammar must be a descendant of the grammar associated with superSemantics.

  Parameters

  • superSemantics: Semantics

  Returns Semantics

isBuiltIn

• isBuiltIn(): boolean

• Return true if the grammar is a built-in grammar, otherwise false.

  Returns boolean

match

• match(input, startRule?): MatchResult

• Try to match input with this grammar, returning a MatchResult. If startRule is given, it specifies the rule on which to start matching. By default, the start rule is inherited from the supergrammar, or if there is no supergrammar specified, it is the first rule in this grammar.

  Parameters

  • input: string
  • Optional startRule: string

  Returns MatchResult

matcher

• matcher(): Matcher

• Create a new Matcher object which supports incrementally matching this grammar against a changing input string.

  Returns Matcher

trace

• trace(input, startRule?): Object

• Like match() except returns a trace object whose toString() returns a summary of each parsing step useful for debugging.

  Parameters

  • input: string
  • Optional startRule: string

  Returns Object