Class: RegularExpression::AST::Match

Inherits:
Object
  • Object
show all
Defined in:
lib/regular_expression/ast.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(item, quantifier: Quantifier::Once.new) ⇒ Match

Returns a new instance of Match.



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# File 'lib/regular_expression/ast.rb', line 98

def initialize(item, quantifier: Quantifier::Once.new)
  @item = item
  @quantifier = quantifier
end

Instance Attribute Details

#item ⇒ Object (readonly)

CharacterGroup | CharacterClass | Character | Period



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# File 'lib/regular_expression/ast.rb', line 95

def item
  @item
end

#quantifier ⇒ Object (readonly)

Quantifier



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# File 'lib/regular_expression/ast.rb', line 96

def quantifier
  @quantifier
end

Instance Method Details

#to_dot(parent) ⇒ Object 



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# File 'lib/regular_expression/ast.rb', line 103

def to_dot(parent)
  node = parent.add_node(object_id, label: "Match")

  item.to_dot(node)
  quantifier.to_dot(node)
end

#to_nfa(start, finish) ⇒ Object 



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# File 'lib/regular_expression/ast.rb', line 110

def to_nfa(start, finish)
  quantifier.quantify(start, finish) do |qstart, qfinish|
    item.to_nfa(qstart, qfinish)
  end
end