^(http|https)\:\/\/ ^(http|https)\:\/\/ \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]+\.)?(example\.com|example\.org)(\:([0-9]+))?\/ \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]+\.)?(example\.com|example\.org)(\:([0-9]+))?\/ \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?(foo|bar) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?(foo|bar) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*(foo|bar)[^\?\#]*[\?\#]? \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*(foo|bar)[^\?\#]*[\?\#]? \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*(foo|bar)($|\?|\#) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*(foo|bar)($|\?|\#) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?(foo|bar)($|\?|\#) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?(foo|bar)($|\?|\#) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]+\.)*[^\:\/\?\#\@]+\:(80|8080|8081|8082)\/ \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]+\.)*[^\:\/\?\#\@]+\:(80|8080|8081|8082)\/ ^(http\:\/\/www\.example\.com\/thing\.foo|http\:\/\/www\.example\.com\/thing\.jpg)$ ^(http\:\/\/www\.example\.com\/thing\.foo|http\:\/\/www\.example\.com\/thing\.jpg)$ \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*\?([^\#]*\&)?id=123456(\&|$) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*\?([^\#]*\&)?group=abcdefg(\&|$) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*\?([^\#]*\&)?id=123456(\&|$) \:\/\/(([^\/\?\#]*)\@)?([^\:\/\?\#\@]*)(\:([0-9]+))?\/[^\?\#]*\?([^\#]*\&)?group=abcdefg(\&|$) ^http:\/\/([^:/\?#@]+\.)+example.org:8080 ^http:\/\/([^:/\?#@]+\.)+example.org:8080 me me square