regex101: URL (URI) - TOTAL Breakdown: Named Groups (Supporting Literal, Relative, Dynamic URLs, with/without Filename/Ext, Query

Group FULLREQUEST(?<FULLREQUEST>^(?<HOST>(?<PROTOCOL>(?:http)?s?:?\/\/)(?<DOMAIN>[^\/]+\/)|(?<RELATIVE>(?:\.*\/?)+))(?<PATH>[^\s]+\/)?(?<FILENAME>(?:(?<NAME>[^\/\s\.\?\#]+?)?(?<EXT>\.[^\s\?\#]*)?|(?:\/[^\/\s\?\#]+?)))(?<QUERYSTRING>\?[^\s\#]+)?(?<ANCHOR>\#\S+)?$)

^start of line

Group HOST(?<HOST>(?<PROTOCOL>(?:http)?s?:?\/\/)(?<DOMAIN>[^\/]+\/)|(?<RELATIVE>(?:\.*\/?)+))

1st Alternative(?<PROTOCOL>(?:http)?s?:?\/\/)(?<DOMAIN>[^\/]+\/)

Group PROTOCOL(?<PROTOCOL>(?:http)?s?:?\/\/)

Non-Capturing Group(?:http)?

?repeats the group contents below at most once:

httpthe literal text http (case insensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

:?optionally matches the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group DOMAIN(?<DOMAIN>[^\/]+\/)

Negated Character Class[^\/]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative(?<RELATIVE>(?:\.*\/?)+)

Group RELATIVE(?<RELATIVE>(?:\.*\/?)+)

Non-Capturing Group(?:\.*\/?)+

+repeats the group contents below at least once:

\.*the literal . (46₁₀ / 56₈ / 2E₁₆) , repeated any number of times

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

Group PATH(?<PATH>[^\s]+\/)?

?repeats the group contents below at most once:

Negated Character Class[^\s]+

+matches at least one character outside the set below:

\sany whitespace character

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group FILENAME(?<FILENAME>(?:(?<NAME>[^\/\s\.\?\#]+?)?(?<EXT>\.[^\s\?\#]*)?|(?:\/[^\/\s\?\#]+?)))

Non-Capturing Group(?:(?<NAME>[^\/\s\.\?\#]+?)?(?<EXT>\.[^\s\?\#]*)?|(?:\/[^\/\s\?\#]+?))

1st Alternative(?<NAME>[^\/\s\.\?\#]+?)?(?<EXT>\.[^\s\?\#]*)?

Group NAME(?<NAME>[^\/\s\.\?\#]+?)?

?repeats the group contents below at most once:

Negated Character Class[^\/\s\.\?\#]+?

+?matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\sany whitespace character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\#the literal # (35₁₀ / 43₈ / 23₁₆)

Group EXT(?<EXT>\.[^\s\?\#]*)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Negated Character Class[^\s\?\#]*

*matches any number of characters outside the set below:

\sany whitespace character

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\#the literal # (35₁₀ / 43₈ / 23₁₆)

2nd Alternative(?:\/[^\/\s\?\#]+?)

Non-Capturing Group(?:\/[^\/\s\?\#]+?)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^\/\s\?\#]+?

+?matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\sany whitespace character

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\#the literal # (35₁₀ / 43₈ / 23₁₆)

Group QUERYSTRING(?<QUERYSTRING>\?[^\s\#]+)?

?repeats the group contents below at most once:

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Negated Character Class[^\s\#]+

+matches at least one character outside the set below:

\sany whitespace character

\#the literal # (35₁₀ / 43₈ / 23₁₆)

Group ANCHOR(?<ANCHOR>\#\S+)?

?repeats the group contents below at most once:

\#the literal # (35₁₀ / 43₈ / 23₁₆)

\S+any non-whitespace character, repeated at least once

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

(?<FULLREQUEST>^(?<HOST>(?<PROTOCOL>(?:http)?s?:?\/\/)(?<DOMAIN>[^\/]+\/)|(?<RELATIVE>(?:\.*\/?)+))(?<PATH>[^\s]+\/)?(?<FILENAME>(?:(?<NAME>[^\/\s\.\?\#]+?)?(?<EXT>\.[^\s\?\#]*)?|(?:\/[^\/\s\?\#]+?)))(?<QUERYSTRING>\?[^\s\#]+)?(?<ANCHOR>\#\S+)?$)

Unit Tests

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