RegExp for finding an RFC4122 compliant UUID in a string.
npm install uuid-regexp  
``shell`
npm install uuid-regexp --save
> You can also use Duo, Bower or download the files manually.
###### npm stats
  
###### API
`js
var uuid = require('uuid-regexp')
uuid().exec('f47ac10b-58cc-4372-a567-0e02b2c3d479')
//=> [ 'f47ac10b-58cc-4372-a567-0e02b2c3d479', index: 0, input: 'f47ac10b-58cc-4372-a567-0e02b2c3d479' ]
uuid().test('f47ac10b-58cc-4372-a567-0e02b2c3d479')
//=> true
uuid().test('f47ac10b58cc4372a5670e02b2c3d479')
//=> true
uuid().test('F47AC10B58CC4372A5670E02B2C3D479')
//=> true
uuid({ nil: true }).test('00000000-0000-0000-0000-000000000000')
//=> true
uuid().test('00000000-0000-0000-0000-000000000000')
//=> false
'Secret UUID is: {4d36e96e-e325-11ce-bfc1-08002be10318}'.replace(uuid({ flags: 'g' }), '*')
//=> 'Secret UUID is: {*}'
`
###### RegExp
`js
var regexp = require('uuid-regexp/regexp')
regexp.versioned.source
//=> '[a-f0-9]{8}-?[a-f0-9]{4}-?[1-5][a-f0-9]{3}-?[89ab][a-f0-9]{3}-?[a-f0-9]{12}'
regexp.nil.source
//=> '[0]{8}-?[0]{4}-?[0]{4}-?[0]{4}-?[0]{12}'
`
###### arguments
- options.nil (Boolean) Whether to include the nil/empty UUID pattern. (default: false)options.flags (String)
- Additional RegExp flags ('i' is always set).
###### returns
- (RegExp)` RegExp for matching an RFC4122 compliant UUID strings.
- [A Universally Unique IDentifier (UUID) URN Namespace]
- [Universally unique identifier]
> SEE: contributing.md

[A Universally Unique IDentifier (UUID) URN Namespace]: http://www.ietf.org/rfc/rfc4122.txt
[Universally unique identifier]: https://en.wikipedia.org/wiki/Universally_unique_identifier