module Random::StringExtensions::Self
Class-level methods.
Public Instance Methods
random(max_length = 8, char_re = /[\w\d]/)
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Returns a randomly generated string. One possible use is password initialization. Takes a max legnth of characters (default 8) and an optional valid char Regexp
(default /wd/).
String.random #~> 'dd4qed4r'
CREDIT George Moschovitis
# File lib/standard/facets/random.rb, line 376 def random(max_length = 8, char_re = /[\w\d]/) raise ArgumentError.new('second argument must be a regular expression') unless char_re.is_a?(Regexp) string = "" while string.length < max_length ch = Random.number(255).chr string << ch if ch =~ char_re end return string end
random_binary(n_bytes)
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Generate a random binary string of n_bytes
size.
CREDIT: Guido De Rosa
# File lib/standard/facets/random.rb, line 389 def random_binary(n_bytes) ( Array.new(n_bytes){ rand(0x100) } ).pack('c*') end