regex101: JavaScript Match Workspace

Pro

^start of line

Group 1((\w|\d|)+(\[('|")?[\w\d]*('|")?\]*)=[a-zA-Z1-9%]+&?)*

*repeats the group contents below any number of times:

Group 2(\w|\d|)+

+repeats the group contents below at least once:

1st Alternative\w

\wany word character

2nd Alternative\d

\da digit

3rd Alternative — matches an empty string

Group 3(\[('|")?[\w\d]*('|")?\]*)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group 4('|")?

?repeats the group contents below at most once:

1st Alternative'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

2nd Alternative"

"the literal " (34₁₀ / 42₈ / 22₁₆)

Character Class[\w\d]*

*matches any number of characters from the set below:

\wany word character

\da digit

Group 5('|")?

?repeats the group contents below at most once:

1st Alternative'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

2nd Alternative"

"the literal " (34₁₀ / 42₈ / 22₁₆)

\]*the literal ] (93₁₀ / 135₈ / 5D₁₆) , repeated any number of times

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Character Class[a-zA-Z1-9%]+

+matches at least one character from the set below:

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

1-9one character from 1 (49₁₀) to 9 (57₁₀)

%the literal % (37₁₀ / 45₈ / 25₁₆)

&?optionally matches the literal & (38₁₀ / 46₈ / 26₁₆)

Group 6(\w|\d|)+

+repeats the group contents below at least once:

1st Alternative\w

\wany word character

2nd Alternative\d

\da digit

3rd Alternative — matches an empty string

Group 7(\[?(1-9)*\]?)

\[?optionally matches the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group 8(1-9)*

*repeats the group contents below any number of times:

1-9the literal text 1-9

\]?optionally matches the literal ] (93₁₀ / 135₈ / 5D₁₆)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Character Class[a-zA-Z1-9%]+

+matches at least one character from the set below:

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

1-9one character from 1 (49₁₀) to 9 (57₁₀)

%the literal % (37₁₀ / 45₈ / 25₁₆)

$end of line

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

26 tokens

Regular Expression

^((\w|\d|)+(\[('|")?[\w\d]*('|")?\]*)=[a-zA-Z1-9%]+&?)*(\w|\d|)+(\[?(1-9)*\]?)=[a-zA-Z1-9%]+$

New

hello=value&am=i
hellp
help=me
pleas=help&me=plz&var[]=true
helo&ewepcmwep&lalal=true
pleas=help&me=plz&var[]=true&var[2]=false&var['blahblah']=ipsum