Class: RegexForRange::Range

Inherits:
Object
  • Object
show all
Defined in:
lib/regex_for_range/range.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(first, last) ⇒ Range

Returns a new instance of Range.



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# File 'lib/regex_for_range/range.rb', line 6

def initialize(first, last)
  @first = first
  @last = last
end

Instance Attribute Details

#first ⇒ Object

Returns the value of attribute first.



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# File 'lib/regex_for_range/range.rb', line 3

def first
  @first
end

#last ⇒ Object

Returns the value of attribute last.



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# File 'lib/regex_for_range/range.rb', line 4

def last
  @last
end

Instance Method Details

#overlaps(range) ⇒ Object 



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# File 'lib/regex_for_range/range.rb', line 11

def overlaps(range)
  return self.last > range.first && range.last > self.first
end

#to_regex ⇒ Object 



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# File 'lib/regex_for_range/range.rb', line 15

def to_regex
  result = ''

  first_str = self.first.to_s
  last_str = self.last.to_s

  for i in (0..first_str.length - 1)
    if first_str[i] == last_str[i]
      result += first_str[i]
    else
      result += '[' + first_str[i] + '-' + last_str[i] + ']'
    end
  end

  return result
end