Regular Expressions 101

Pro

^start of line

Character Class[A-Za-z0-9]{3,7}

{3,7}matches between 3 and 7 characters from the set below:

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

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

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

Non-Capturing Group(?:[ -][A-Za-z0-9]{3,7}){0,3}

{0,3}repeats the group contents below between 0 and 3 times:

Character Class[ -]

the literal (32₁₀ / 40₈ / 20₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Za-z0-9]{3,7}

{3,7}matches between 3 and 7 characters from the set below:

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

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

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

\ba Unicode word boundary

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.

25 tokens

^[A-Za-z0-9]{3,7}(?:[ -][A-Za-z0-9]{3,7}){0,3}\b

New

32ah3af
32ahPP-A2ah3af
3A63af-3HHx3B-APe5y5-9OPiis
3A63af 3HHx3B APe5y5 9OPiis
325df j344j 25hi245bib245245hj