Method: Keisan::Parser#initialize

Defined in:
lib/keisan/parser.rb

#initialize(string: nil, tokens: nil) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/keisan/parser.rb', line 5

def initialize(string: nil, tokens: nil)
  if string.nil? && tokens.nil?
    raise Keisan::Exceptions::InternalError.new("Invalid arguments")
  end

  if !string.nil?
    @tokens = Tokenizer.new(string).tokens
  else
    raise Keisan::Exceptions::InternalError.new("Invalid argument: tokens = #{tokens}") if tokens.nil? || !tokens.is_a?(Array)
    @tokens = tokens
  end

  @components = []

  parse_components!
end