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PHP RFC3986 regex
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<?php | |
const PATTERN_RFC3986 = '~^ | |
(?<scheme>[a-z][a-z0-9+-\.]*) | |
:// | |
(?: | |
(?<userinfo> | |
([a-z0-9\-\._\~!\$&\'()*+,;=:]|%[0-9a-f]{2})* | |
)@ # *( unreserved / pct-encoded / sub-delims / ":" ) | |
)? | |
(?<host> | |
(?<ipv4> | |
(?<ipv4Dec>25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?) | |
(?:\.(?P>ipv4Dec)){3} | |
) # a IPv4 address | |
| | |
(?<ipv6> | |
\[ | |
(?: | |
(?: | |
(?<ipv6h16>[0-9a-f]{1,4}):(?:(?P>ipv6h16):){5} | |
(?<ipv6ls32> | |
(?:(?P>ipv6h16):(?P>ipv6h16)) | |
| | |
(?<ipv6ipv4> | |
(?<ipv6ipv4Dec>25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?) | |
(?:\.(?P>ipv6ipv4Dec)){3} | |
) | |
) | |
) # 6( h16 ":" ) ls32 | |
| | |
(?:::(?:(?P>ipv6h16):){5}(?P>ipv6ls32)) # "::" 5( h16 ":" ) ls32 | |
| | |
(?:(?P>ipv6h16)?::(?:(?P>ipv6h16):){4}(?P>ipv6ls32)) # [ h16 ] "::" 4( h16 ":" ) ls32 | |
| | |
(?:(?:(?:(?P>ipv6h16):){1,2}|:):(?:(?P>ipv6h16):){3}(?P>ipv6ls32)) # [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32 | |
| | |
(?:(?:(?:(?P>ipv6h16):){1,3}|:):(?:(?P>ipv6h16):){2}(?P>ipv6ls32)) # [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32 | |
| | |
(?:(?:(?:(?P>ipv6h16):){1,4}|:):(?P>ipv6h16):(?P>ipv6ls32)) # [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32 | |
| | |
(?:(?:(?:(?P>ipv6h16):){1,5}|:):(?P>ipv6ls32)) # [ *4( h16 ":" ) h16 ] "::" ls32 | |
| | |
(?:(?:(?:(?P>ipv6h16):){1,6}|:):(?P>ipv6h16)) # [ *5( h16 ":" ) h16 ] "::" h16 | |
| | |
(?:(?:(?:(?P>ipv6h16):){1,7}|:):) # [ *6( h16 ":" ) h16 ] "::" | |
) | |
\] | |
) # a IPv6 address | |
| | |
(?<ipvfuture> | |
\[ | |
v[0-9a-f]+ \. [a-z0-9\-\._\~!\$&\'()*+,;=:]+ # "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" ) | |
\] | |
) # a future IP address | |
| | |
(?<regname> | |
([a-z0-9\-\._\~!\$&\'()*+,;=]|%[0-9a-f]{2})* # *( unreserved / pct-encoded / sub-delims ) | |
) # a registered name | |
) | |
(?: | |
:(?<port>[0-9]*) | |
)? | |
(?<pathabempty> | |
(?: | |
/(?<segment>([a-z0-9\-\._\~!\$&\'()*+,;=:@]|%[0-9a-f]{2})*) # *pchar | |
)* | |
) # *( "/" segment ) | |
(?: | |
\? | |
(?<query> | |
([a-z0-9\-\._\~!\$&\'()*+,;=:@/?]|%[0-9a-f]{2})* | |
) # *( pchar / "/" / "?" ) | |
)? | |
(?: | |
\# | |
(?<fragment> | |
([a-z0-9\-\._\~!\$&\'()*+,;=:@/?]|%[0-9a-f]{2})* | |
) # *( pchar / "/" / "?" ) | |
)? | |
$~ixu' |
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