regex101: JavaScript Substitution Workspace

Non-Capturing Group(?:(?:ht|f)tp(?:s?)\:\/\/|~\/|\/)?

?repeats the group contents below at most once:

1st Alternative(?:ht|f)tp(?:s?)\:\/\/

Non-Capturing Group(?:ht|f)

1st Alternativeht

htthe literal text ht (case insensitive)

2nd Alternativef

fthe literal f (102₁₀ / 146₈ / 66₁₆) (case insensitive)

tpthe literal text tp (case insensitive)

Non-Capturing Group(?:s?)

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

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative~\/

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

3rd Alternative\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:\w+:\w+@)?

?repeats the group contents below at most once:

\w+any word character, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\w+any word character, repeated at least once

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Group 1((?:(?:[-\w\d{1-3}]+\.)+(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|edu|co\.uk|ac\.uk|it|fr|tv|museum|asia|local|travel|[a-z]{2}))|((\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)(\.(\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)){3}))

1st Alternative(?:(?:[-\w\d{1-3}]+\.)+(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|edu|co\.uk|ac\.uk|it|fr|tv|museum|asia|local|travel|[a-z]{2}))

Non-Capturing Group(?:(?:[-\w\d{1-3}]+\.)+(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|edu|co\.uk|ac\.uk|it|fr|tv|museum|asia|local|travel|[a-z]{2}))

Non-Capturing Group(?:[-\w\d{1-3}]+\.)+

+repeats the group contents below at least once:

Character Class[-\w\d{1-3}]+

+matches at least one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\wany word character

\da digit

{the literal { (123₁₀ / 173₈ / 7B₁₆)

1-3one character from 1 (49₁₀) to 3 (51₁₀)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|edu|co\.uk|ac\.uk|it|fr|tv|museum|asia|local|travel|[a-z]{2})

1st Alternativecom

comthe literal text com (case insensitive)

2nd Alternativeorg

orgthe literal text org (case insensitive)

3rd Alternativenet

netthe literal text net (case insensitive)

4th Alternativegov

govthe literal text gov (case insensitive)

5th Alternativemil

milthe literal text mil (case insensitive)

6th Alternativebiz

bizthe literal text biz (case insensitive)

7th Alternativeinfo

infothe literal text info (case insensitive)

8th Alternativemobi

mobithe literal text mobi (case insensitive)

9th Alternativename

namethe literal text name (case insensitive)

10th Alternativeaero

aerothe literal text aero (case insensitive)

11th Alternativejobs

12th Alternativeedu

13th Alternativeco\.uk

14th Alternativeac\.uk

15th Alternativeit

16th Alternativefr

17th Alternativetv

18th Alternativemuseum

19th Alternativeasia

20th Alternativelocal

21st Alternativetravel

22nd Alternative[a-z]{2}

2nd Alternative((\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)(\.(\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)){3})

Non-Capturing Group(?::[\d]{1,5})?

Non-Capturing Group(?:(?:(?:\/(?:[-\w~!$+|.,=]|%[a-f\d]{2})+)+|\/)+|\?|#)?

Non-Capturing Group(?:(?:\?(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=?(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)(?:&(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=?(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)*)*

Non-Capturing Group(?:#(?:[-\w~!$ |\/.,*:;=]|%[a-f\d]{2})*)?

Global pattern flags

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

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

26 tokens

Regular Expression

(?:(?:ht|f)tp(?:s?)\:\/\/|~\/|\/)?(?:\w+:\w+@)?((?:(?:[-\w\d{1-3}]+\.)+(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|edu|co\.uk|ac\.uk|it|fr|tv|museum|asia|local|travel|[a-z]{2}))|((\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)(\.(\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)){3}))(?::[\d]{1,5})?(?:(?:(?:\/(?:[-\w~!$+|.,=]|%[a-f\d]{2})+)+|\/)+|\?|#)?(?:(?:\?(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=?(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)(?:&(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=?(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)*)*(?:#(?:[-\w~!$ |\/.,*:;=]|%[a-f\d]{2})*)?

New

Hey there StackOverflow.com, how's stuff.co going? This.xyz is not valid.

Regular Expressions 101

Regular Expression

Extraction