regex101: PCRE (Legacy) Substitution Workspace

\ban ASCII word boundary

Group 1(https?:\/\/([0-9a-z]+(?:[\-\.][0-9a-z]+)+)(\/(?:\/\w+\/)*\w*)?(\?\w+\=[^\s\&\=]+(?:\&\w+\=[^\s\&\=]+)*)?(\#\S+)?)

httpthe literal text http (case sensitive)

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2([0-9a-z]+(?:[\-\.][0-9a-z]+)+)

Character Class[0-9a-z]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Non-Capturing Group(?:[\-\.][0-9a-z]+)+

+repeats the group contents below at least once:

Character Class[\-\.]

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-9a-z]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group 3(\/(?:\/\w+\/)*\w*)?

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

*repeats the group contents below any number of times:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\w+any word character, repeated at least once

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\w*any word character, repeated any number of times

Group 4(\?\w+\=[^\s\&\=]+(?:\&\w+\=[^\s\&\=]+)*)?

?repeats the group contents below at most once:

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\w+any word character, repeated at least once

\=the literal = (61₁₀ / 75₈ / 3D₁₆)

Negated Character Class[^\s\&\=]+

+matches at least one character outside the set below:

\sany whitespace character

\&the literal & (38₁₀ / 46₈ / 26₁₆)

\=the literal = (61₁₀ / 75₈ / 3D₁₆)

Non-Capturing Group(?:\&\w+\=[^\s\&\=]+)*

*repeats the group contents below any number of times:

\&the literal & (38₁₀ / 46₈ / 26₁₆)

\w+any word character, repeated at least once

\=the literal = (61₁₀ / 75₈ / 3D₁₆)

Negated Character Class[^\s\&\=]+

+matches at least one character outside the set below:

\sany whitespace character

\&the literal & (38₁₀ / 46₈ / 26₁₆)

\=the literal = (61₁₀ / 75₈ / 3D₁₆)

Group 5(\#\S+)?

?repeats the group contents below at most once:

\#the literal # (35₁₀ / 43₈ / 23₁₆)

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

\ban ASCII word boundary

Global pattern flags

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

Search reference

Regular Expression

\b(https?:\/\/([0-9a-z]+(?:[\-\.][0-9a-z]+)+)(\/(?:\/\w+\/)*\w*)?(\?\w+\=[^\s\&\=]+(?:\&\w+\=[^\s\&\=]+)*)?(\#\S+)?)\b

Test String
New

<a href="https://worldofwarships.ru/">https://worldofwarships.ru/</a><div><br></div>

<div data-test="https://worldofwarships.ru/1">https://worldofwarships.ru/1</div>

<div>https://worldofwarships.ru/0</div>

<div>https://worldofwarships.ru/0</div>

<div> https://worldofwarships.ru/2</div>

https://worldofwarships.ru/3?test=https://worldofwarships.ru/

https://worldofwarships.ru/4#https://worldofwarships.ru/

https://worldofwarships.ru/5

<div>https://worldofwarships.ru/3<br clear="all">
<div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Тестовый аккаунт</div></div>
</div>

<img src="https://worldofwarships.ru/3?test=https://worldofwarships.ru/3"/>
<img src="https://worldofwarships.ru/3#https://worldofwarships.ru/3"/>

<form action="https://worldofwarships.ru/3"></form>

Substitution
Processing...

<a href="$1">$1</a>

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
Processing...