in reply to Perl RegEx (url explode)

This answer caters for usernames and passwords too:

/^(\w+):\/\/(?:([^:@\/]*)(?::([^@\/]+)|)\@|)((?:[a-zA-Z0-9]+\.|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]\.)*(?:[a-zA-Z0-9]+|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]))(?::(\d{1,5})|)(.*)/o

e.g.

#!perl use strict; use warnings; for my $uri( qw(https://www.example.de http://www.example.de https://example.de http://example.de www.example.de example.de:123 http://www.example.de:445/can?this=happen&too=1#lalala http://www.example.de/can?this=happen&too=1#foo http://www.example.de:445 wss://stream.binance.com:9443/stream?streams=xrpbtc@kl +ine_1m/ethbtc@kline_1m/btcusdt@kline_1m http://a:b@example.com:890/path/wah@t/foo.js?foo=bar&b +ingobang=&king=kong@kong.com#foobar/bing/bo@ng?bang" ftp://username@hostname/ ftp://username:password@hostname/ ) ) { print "in ($uri):\n"; my @parts=($uri=~/^(\w+):\/\/ # scheme (ftp http wss etc) (?:([^:@\/]*) # optional username (?::([^@\/]+)|) # optional password \@|) # username and password are op +tional ( # group all the bits of the UR +L and its dots (?:[a-zA-Z0-9]+\.|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA- +Z0-9]\.)*(?:[a-zA-Z0-9]+|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]) ) (?::(\d{1,5})|) # optional port (.*)/xo); # path and query parms come la +st for(my $i=0;$i<=$#parts;$i++) { print " $i: $parts[$i]\n" if($parts +[$i]); } }