$RE{URI} from Regexp::Common

gistfile1.txt

(?:(?:(?:https?)://(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z])[.]?)|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))(?::(?:(?:[0-9]*)))?(?:/(?:(?:(?:(?:(?:(?:[a-zA-Z0-9\-_.!~*'():@&=+$,]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*)(?:;(?:(?:[a-zA-Z0-9\-_.!~*'():@&=+$,]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*))*)(?:/(?:(?:(?:[a-zA-Z0-9\-_.!~*'():@&=+$,]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*)(?:;(?:(?:[a-zA-Z0-9\-_.!~*'():@&=+$,]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*))*))*))(?:[?](?:(?:(?:[;/?:@&=+$,a-zA-Z0-9\-_.!~*'()]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*)))?))?)|(?:(?:file)://(?:(?:(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z]))|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+))|localhost)?)(?:/(?:(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),:@&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))*)(?:/(?:(?:[-a-zA-Z0-9$_.+!*'(),:@&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))*))*)))))|(?:(?:nntp)://(?:(?:(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z]))|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))(?::(?:(?:[0-9]+)))?)/(?:(?:[a-zA-Z][-A-Za-z0-9.+_]*))(?:/(?:[0-9]+))?))|(?:(?:prospero)://(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z]))|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))(?::(?:(?:[0-9]+)))?/(?:(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),?:@&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))*)(?:/(?:(?:[-a-zA-Z0-9$_.+!*'(),?:@&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))*))*))(?:(?:;(?:(?:[-a-zA-Z0-9$_.+!*'(),?:@&]|(?:%[a-fA-F0-9][a-fA-F0-9]))*)=(?:(?:[-a-zA-Z0-9$_.+!*'(),?:@&]|(?:%[a-fA-F0-9][a-fA-F0-9]))*))*))|(?:(?:news):(?:(?:[*]|(?:(?:[-a-zA-Z0-9$_.+!*'(),;/?:&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))+@(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z]))|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))|(?:[a-zA-Z][-A-Za-z0-9.+_]*))))|(?:(?:pop)://(?:(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),&=~]+|(?:%[a-fA-F0-9][a-fA-F0-9]))+))(?:;AUTH=(?:[*]|(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),&=~]+|(?:%[a-fA-F0-9][a-fA-F0-9]))+)|(?:[+](?:APOP|(?:(?:[-a-zA-Z0-9$_.+!*'(),&=~]+|(?:%[a-fA-F0-9][a-fA-F0-9]))+))))))?@)?(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z]))|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))(?::(?:(?:[0-9]+)))?)|(?:(?:ftp)://(?:(?:(?:(?:[a-zA-Z0-9\-_.!~*'();:&=+$,]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*))(?:)@)?(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z])[.]?)|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))(?::(?:(?:[0-9]*)))?(?:/(?:(?:(?:(?:(?:[a-zA-Z0-9\-_.!~*'():@&=+$,]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*)(?:/(?:(?:[a-zA-Z0-9\-_.!~*'():@&=+$,]+|(?:%[a-fA-F0-9][a-fA-F0-9]))*))*))(?:;type=(?:[AIai]))?))?)|(?:(?:wais)://(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z]))|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))(?::(?:(?:[0-9]+)))?/(?:(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),]|(?:%[a-fA-F0-9][a-fA-F0-9]))*))(?:[?](?:(?:(?:[-a-zA-Z0-9$_.+!*'(),;:@&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))*))|/(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),]|(?:%[a-fA-F0-9][a-fA-F0-9]))*))/(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),]|(?:%[a-fA-F0-9][a-fA-F0-9]))*)))?))|(?:(?:tv):(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z])[.]?))?)|(?:(?:telnet)://(?:(?:(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),;?&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))*))(?::(?:(?:(?:[-a-zA-Z0-9$_.+!*'(),;?&=]|(?:%[a-fA-F0-9][a-fA-F0-9]))*)))?)@)?(?:(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.])*(?:[a-zA-Z][-a-zA-Z0-9]*[a-zA-Z0-9]|[a-zA-Z]))|(?:[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+)))(?::(?:(?:[0-9]+)))?)(?:/)?)|(?:(?:fax):(?:(?:(?:[+](?:[0-9\-.()]+)(?:;isub=[0-9\-.()]+)?(?:;tsub=[0-9\-.()]+)?(?:;postd=[0-9\-.()*#ABCDwp]+)?(?:(?:;(?:phone-context)=(?:(?:(?:[+][0-9\-.()]+)|(?:[0-9\-.()*#ABCDwp]+))|(?:(?:[!'E-OQ-VX-Z_e-oq-vx-z~]|(?:%(?:2[124-7CFcf]|3[AC-Fac-f]|4[05-9A-Fa-f]|5[1-689A-Fa-f]|6[05-9A-Fa-f]|7[1-689A-Ea-e])))(?:[!'()*\-.0-9A-Z_a-z~]+|(?:%(?:2[1-9A-Fa-f]|3[AC-Fac-f]|[4-6][0-9A-Fa-f]|7[0-9A-Ea-e])))*)))|(?:;(?:tsp)=(?: 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