Class: Numeric

Inherits:
Object
  • Object
show all
Defined in:
lib/tree_rb/extension_numeric.rb

Instance Method Summary collapse

Instance Method Details

#to_human ⇒ Object 



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# File 'lib/tree_rb/extension_numeric.rb', line 16

def to_human
  if self == 0
    return '0B'
  end
  units = %w{B KB MB GB TB}

  e     = (Math.log(self)/Math.log(1024)).floor
  s     = '%.3f' % (to_f / 1024**e)
  s.sub(/\.?0*$/, units[e])
end

#with_separator(separator = ',', length = 3) ⇒ Object

returns a string separated by the thousands <separator> es.: 100000 -> 1.000.000



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# File 'lib/tree_rb/extension_numeric.rb', line 7

def with_separator(separator = ',', length = 3)
  splitter      = Regexp.compile "(\\d{#{length}})"
  before, after = self.to_s.split('.')
  before        = before.reverse.gsub splitter, '\1' + separator
  str           = "#{ before.chomp(separator).reverse }"
  str += ".#{ after }" if after
  str
end