Contents

class String
  NUMERIC_INPUT = /\A[a-fA-F0-9]+\z/

  def valid_number?
    !!match(NUMERIC_INPUT)
  end

  def negation_operation?
    self == "~"
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
utc_rpn_calc-0.1.0	lib/utc_rpn_calc/core_ext/string.rb
utc_rpn_calc-0.0.1	lib/utc_rpn_calc/core_ext/string.rb