Regular Expressions 101

Explanation

Pro

(?i)applies the following effective flags to the remainder of the pattern: i

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

\ban ASCII word boundary

Group 1((?:https?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'\".,<>?«»“”‘’]))

Non-Capturing Group(?:https?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)

1st Alternativehttps?:\/\/

httpthe literal text http (case insensitive)

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativewww\d{0,3}[.]

wwwthe literal text www (case insensitive)

\d{0,3}a digit, repeated between 0 and 3 times

Character Class[.]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

3rd Alternative[a-z0-9.\-]+[.][a-z]{2,4}\/

Character Class[a-z0-9.\-]+

+matches at least one character from the set below:

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

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

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[.]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[a-z]{2,4}

{2,4}matches between 2 and 4 characters from the set below:

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+

+repeats the group contents below at least once:

1st Alternative[^\s()<>]+

Negated Character Class[^\s()<>]+

+matches at least one character outside the set below:

\sany whitespace character

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative\(([^\s()<>]+|(\([^\s()<>]+\)))*\)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 2([^\s()<>]+|(\([^\s()<>]+\)))*

*repeats the group contents below any number of times:

1st Alternative[^\s()<>]+

Negated Character Class[^\s()<>]+

+matches at least one character outside the set below:

\sany whitespace character

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative(\([^\s()<>]+\))

Group 3(\([^\s()<>]+\))

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Negated Character Class[^\s()<>]+

+matches at least one character outside the set below:

\sany whitespace character

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Non-Capturing Group(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'\".,<>?«»“”‘’])

1st Alternative\(([^\s()<>]+|(\([^\s()<>]+\)))*\)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 4([^\s()<>]+|(\([^\s()<>]+\)))*

*repeats the group contents below any number of times:

1st Alternative[^\s()<>]+

Negated Character Class[^\s()<>]+

+matches at least one character outside the set below:

\sany whitespace character

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative(\([^\s()<>]+\))

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative[^\s`!()\[\]{};:'\".,<>?«»“”‘’]

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?i)\b((?:https?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'\".,<>?«»“”‘’]))

New

http://honeybadgerofmoney.com

Substitution

http://honeybadgerofmoney.com