class RPNCalculator::Result::Validator

Attributes

invalid_characters[R]

Public Class Methods

new(invalid_characters = []) click to toggle source
# File lib/rpn-calculator/result/validator.rb, line 6
def initialize(invalid_characters = [])
  @invalid_characters = invalid_characters
end

Public Instance Methods

error() click to toggle source
# File lib/rpn-calculator/result/validator.rb, line 14
def error
  "Invalid characters: #{invalid_character_list}" unless valid?
end
result() click to toggle source
# File lib/rpn-calculator/result/validator.rb, line 18
def result
  []
end
valid?() click to toggle source
# File lib/rpn-calculator/result/validator.rb, line 10
def valid?
  invalid_characters.empty?
end

Private Instance Methods

invalid_character_list() click to toggle source
# File lib/rpn-calculator/result/validator.rb, line 26
def invalid_character_list
  invalid_characters.join(', ')
end