regex101: JavaScript Substitution Workspace

^start of line

Non-Capturing Group(?:([^:\/?#\s]+):\/{2})?

?repeats the group contents below at most once:

Group 1([^:\/?#\s]+)

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

+matches at least one character outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

\sany whitespace character

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/{2}the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated exactly 2 times

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

?repeats the group contents below at most once:

Group 2([^@\/?#\s]+)

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

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

\sany whitespace character

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Group 3([^\/?#\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)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

\sany whitespace character

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

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 4([^?#\s]*)

Negated Character Class[^?#\s]*

*matches any number of characters outside the set below:

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

\sany whitespace character

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

?repeats the group contents below at most once:

Character Class[?]

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Group 5([^#\s]+)

Negated Character Class[^#\s]+

+matches at least one character outside the set below:

#the literal # (35₁₀ / 43₈ / 23₁₆)

\sany whitespace character

\S*any non-whitespace character, repeated any number of times

$end of line

the literal ↵ (10₁₀ / 12₈ / A₁₆)

Global pattern flags

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

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

^(?:([^:\/?#\s]+):\/{2})?(?:([^@\/?#\s]+)@)?([^\/?#\s]+)?(?:\/([^?#\s]*))?(?:[?]([^#\s]+))?\S*$

New

protocol://user:password@hostname:12345/segment1/segment2?p1=val1&p2=val2
ftp://usr:pwd@[FFF::12]:345/testIP6

Regular Expressions 101

Regular Expression

Extraction