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Rob

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Detect if your running on windows

It's an unfortunate necessity that you need to write different code for windows sometimes or at the very least load different libraries since there is no fork(), etc. This is how you can tell.

# Returns true if we are running on a MS windows platform, false otherwise.

def Kernel.is_windows?
  processor, platform, *rest = RUBY_PLATFORM.split("-")
  platform == 'mswin32'
end
to ruby windows detection by itchybeard on May 28, 2006 2 Comments

Random Alphanumeric String Generator

This allows you to do String.random_alphanumeric(num) to get a random string that is num characters long. Useful for generating random identifier keys. 

# Returns a random alphanumeric string of arbitrary size.

def String.random_alphanumeric(size=16)
  s = ""
  size.times { s << (i = Kernel.rand(62); i += ((i < 10) ? 48 : ((i < 36) ? 55 : 61 ))).chr }
  s
end
to ruby random string by itchybeard on May 28, 2006 4 Comments
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