Class: Hoozuki::Node::Repetition

Inherits:
Object
  • Object
show all
Defined in:
lib/hoozuki/node/repetition.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(child, quantifier) ⇒ Repetition

Returns a new instance of Repetition.



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# File 'lib/hoozuki/node/repetition.rb', line 8

def initialize(child, quantifier)
  @child = child
  @quantifier = quantifier
end

Instance Attribute Details

#child ⇒ Object (readonly)

Returns the value of attribute child.



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# File 'lib/hoozuki/node/repetition.rb', line 6

def child
  @child
end

Instance Method Details

#one_or_more? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hoozuki/node/repetition.rb', line 17

def one_or_more?
  @quantifier == :one_or_more
end

#optional? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hoozuki/node/repetition.rb', line 21

def optional?
  @quantifier == :optional
end

#to_nfa(state) ⇒ Object 



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# File 'lib/hoozuki/node/repetition.rb', line 25

def to_nfa(state)
  if zero_or_more?
    to_nfa_zero_or_more(state)
  elsif one_or_more?
    to_nfa_one_or_more(state)
  elsif optional?
    to_nfa_optional(state)
  end
end

#zero_or_more? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hoozuki/node/repetition.rb', line 13

def zero_or_more?
  @quantifier == :zero_or_more
end