Regular Expressions 101

Pro

Group 1([A-Za-z]{1,2})

Character Class[A-Za-z]{1,2}

{1,2}matches between 1 and 2 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)

Group 2([0-9]{3})

Character Class[0-9]{3}

{3}matches exactly 3 characters from the set below:

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

Group 3(-\w*)?

?repeats the group contents below at most once:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\w*a Unicode word character, repeated any number of times

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-z]{1,2})([0-9]{3})(-\w*)?

New

AB001
aB999
Hm000
en789
rv005-ab

ab
abcfr
158
78532
123ab
a1b23

AB001
aB999
Hm000
en789
rv005-ab

ab
abcfr
158
78532
123ab
a1b23