Class: SmartSortAtom

Inherits:
Object
  • Object
show all
Defined in:
lib/generators/katapult/basics/templates/lib/ext/string/to_sort_atoms.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value) ⇒ SmartSortAtom

Returns a new instance of SmartSortAtom.



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# File 'lib/generators/katapult/basics/templates/lib/ext/string/to_sort_atoms.rb', line 5

def initialize(value)
  @value = value
end

Instance Attribute Details

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/generators/katapult/basics/templates/lib/ext/string/to_sort_atoms.rb', line 3

def value
  @value
end

Class Method Details

.parse(string) ⇒ Object 



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# File 'lib/generators/katapult/basics/templates/lib/ext/string/to_sort_atoms.rb', line 22

def self.parse(string)
  # Loosely based on http://stackoverflow.com/a/4079031
  string.scan(/[^\d\.]+|[\d\.]+/).collect do |atom|
    if atom.match(/\d+(\.\d+)?/)
      atom = atom.to_f
    else
      atom = normalize_string(atom)
    end
    new(atom)
  end

end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/generators/katapult/basics/templates/lib/ext/string/to_sort_atoms.rb', line 9

def <=>(other)
  other.is_a?(self.class) or raise "Can only smart compare with other SmartSortAtom"
  left_value = value
  right_value = other.value
  if left_value.class == right_value.class
    left_value <=> right_value
  elsif left_value.is_a?(Float)
    -1
  else
    1
  end
end