Module: Kgl

Defined in:
lib/kgl.rb,
lib/kgl/version.rb

Defined Under Namespace

Modules: SuuMod

Constant Summary collapse

VERSION = 
'0.0.9'

Class Method Summary collapse

Class Method Details

.rpw(n, sym = '!#$%&*+,-./:;<=>?@') ⇒ Object 



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# File 'lib/kgl.rb', line 15

module_function def rpw(n, sym='!#$%&*+,-./:;<=>?@')
	ls = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789' + sym
	m = ls.length
	nn = ((255+128)*n).ceildiv(m)
	begin
		ary = `openssl rand #{nn}`.bytes.select{ |i| i < m }
		nn += n
	end while ary.size < n
	ary[...n].map{ |i| ls[i] }.join
rescue Errno::ENOENT => e
	raise 'Kgl.#rpw requires openssl command'
end