Regular Expressions 101

Group 1(([(_)a-zA-Z0-9\.\-]{1,})(@)([a-zA-Z0-9\-]+)(\.)([a-zA-Z]{2,3})((\.)([a-z]{2,3}))?)

Group 2([(_)a-zA-Z0-9\.\-]{1,})

Character Class[(_)a-zA-Z0-9\.\-]{1,}

{1,}matches at least one character from the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

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

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 3(@)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Group 4([a-zA-Z0-9\-]+)

Character Class[a-zA-Z0-9\-]+

+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)

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

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 5(\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 6([a-zA-Z]{2,3})

Character Class[a-zA-Z]{2,3}

{2,3}matches between 2 and 3 characters 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)

Group 7((\.)([a-z]{2,3}))?

?repeats the group contents below at most once:

Group 8(\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 9([a-z]{2,3})

Character Class[a-z]{2,3}

{2,3}matches between 2 and 3 characters from the set below:

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

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(([(_)a-zA-Z0-9\.\-]{1,})(@)([a-zA-Z0-9\-]+)(\.)([a-zA-Z]{2,3})((\.)([a-z]{2,3}))?)

New



"jj.jj@domain.com"
"hello@myemailadd.com.uk "
"HELLO@MYNAME.COM"
"japan@water.com.uk.uk.uk"
"me.me.me@domain.com.uk.uk"
"hello99@khalsa-aid.com"
"hello.me@myemailadd.com.in"
"hello.me@tax.gov.uk" 
"my_name@council.co.uk"        

"my-hello@bye-bye.co.uk"
"hello@my-99GOALS.co9.uk"

"Hello_Hello@two.com"