Module: AastraXmlApi::ArrayExtension

Defined in:
lib/aastra_xml_api/array_extensions.rb

Instance Method Summary collapse

Instance Method Details

#natsort ⇒ Object

Method which sort an array composed of strings with embedded numbers by the ‘natural’ representation of numbers inside a string.



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# File 'lib/aastra_xml_api/array_extensions.rb', line 21

def natsort
  reg_number = /\d+/
    # We call the sort method of the Array class.
    self.sort do |str1, str2|

    # We try to find an embedded number
    a = str1.match(reg_number)
    b = str2.match(reg_number)

    # If there is no number
    if [a,b].include? nil
      str1 <=> str2
    else
      while true
        begin
          # We compare strings before the number. If there
          # are equal, we will have to compare the numbers
          if (comp = a.pre_match <=> b.pre_match) == 0
            # If the numbers are equal
            comp = (a[0] == b[0]) ? comp = a[0] + a.post_match <=> b[0] + b.post_match :
              comp = a[0].to_i <=> b[0].to_i
          end

          str1, str2 = a.post_match, b.post_match
          a = str1.match(reg_number)
          b = str2.match(reg_number)
        rescue
          break
        end
      end
      comp
    end
    end
end

#natsort! ⇒ Object

Same as ‘natsort’ but replace in place.



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# File 'lib/aastra_xml_api/array_extensions.rb', line 57

def natsort!
  self.replace(natsort)
end