re = /^(?=.*\d)(?=.*[^a-zA-Z0-9\n])(?=.*[a-z])(?=.*[A-Z])(?!.*([a-zA-Z0-9])\1\1).{6,20}$/m
str = 'asA112!
asA111@'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html