Class: SemverStringer::Semver::Substring

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/semver_stringer/semver.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(s) ⇒ Substring

Returns a new instance of Substring.



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# File 'lib/semver_stringer/semver.rb', line 9

def initialize(s) 
  @str = s
end

Class Method Details

.compare_version_atoms(first, second) ⇒ Object 



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# File 'lib/semver_stringer/semver.rb', line 37

def self.compare_version_atoms(first, second)
  if first == nil and second == nil
    return nil
  elsif first != nil and second == nil
    return 1
  elsif first == nil and second != nil
    return -1 
  else
    unless first.match /[^0-9]/ or second.match /[^0-9]/
      return first.to_i <=> second.to_i
    else
      return first <=> second
    end
  end
end

.compareVersionStrings(first, second) ⇒ Object 



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# File 'lib/semver_stringer/semver.rb', line 18

def self.compareVersionStrings(first, second)
  first_components = first.split('.')
  second_components = second.split('.')

  first_head = first_components.shift
  second_head = second_components.shift

  head_comparison = compare_version_atoms first_head, second_head
  if head_comparison == 0
    if first_components.length > 0 or second_components.length > 0 
      return Substring::compareVersionStrings first_components.join('.'), second_components.join('.')
    else
      return 0
    end
  else 
    return head_comparison
  end
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/semver_stringer/semver.rb', line 13

def <=>(other)
  other_str = other.instance_variable_get('@str')
  return Substring::compareVersionStrings @str, other_str
end