Class: Keisan::StringAndGroupParser::CommentPortion

Inherits:
Portion
  • Object
show all
Defined in:
lib/keisan/string_and_group_parser.rb

Instance Attribute Summary collapse

Attributes inherited from Portion

#end_index, #start_index

Instance Method Summary collapse

Constructor Details

#initialize(expression, start_index) ⇒ CommentPortion

Returns a new instance of CommentPortion.



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# File 'lib/keisan/string_and_group_parser.rb', line 161

def initialize(expression, start_index)
  super(start_index)

  if expression[start_index] != '#'
    raise Keisan::Exceptions::TokenizingError.new("Comment should start with '#'")
  else
    index = start_index + 1
  end

  while index < expression.size
    break if expression[index] == "\n"
    index += 1
  end

  @end_index = index
  @string = expression[start_index...end_index]
end

Instance Attribute Details

#string ⇒ Object (readonly)

Returns the value of attribute string.



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# File 'lib/keisan/string_and_group_parser.rb', line 159

def string
  @string
end

Instance Method Details

#size ⇒ Object 



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# File 'lib/keisan/string_and_group_parser.rb', line 179

def size
  string.size
end

#to_s ⇒ Object 



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# File 'lib/keisan/string_and_group_parser.rb', line 183

def to_s
  string
end