regex101: JavaScript Match Workspace

Pro

Positive Lookbehind(?<=\[(\w+\b)[^\][\n]*)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group 1(\w+\b)

\w+any word character, repeated at least once

\ban ASCII word boundary

Negated Character Class[^\][\n]*

*matches any number of characters outside the set below:

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\na line-feed (newline) character (ASCII 10)

Group 2([^\s=]+)

Negated Character Class[^\s=]+

+matches at least one character outside the set below:

\sany whitespace character

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Character Class['"]

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 3([^'"]*)

Negated Character Class[^'"]*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Character Class['"]

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Positive Lookahead(?=[^\][\n]*])

Negated Character Class[^\][\n]*

*matches any number of characters outside the set below:

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\na line-feed (newline) character (ASCII 10)

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Global pattern flags

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

26 tokens

Regular Expression

(?<=\[(\w+\b)[^\][\n]*)([^\s=]+)=['"]([^'"]*)['"](?=[^\][\n]*])

New

Hello, My name is Jack, This is my selfie:
[img id='4' src="imageurl"]
Below is the quick-link to my profile
[profile username='jackisbest'] [profile username='jackisbest']

Below is the quick-link to my profile
[profile username='jackisbest'

Below is the quick-link to my profile
[profile username='jackisbest'
Below is the quick-link to my profile
profile username='jackisbest'
Below is the quick-link to my profile
profile username='jackisbest']