Regular Expressions 101

^start of line

Group 1([^-]*)

Negated Character Class[^-]*

*matches any number of characters outside the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 2(-[a-zA-Z0-9]+){2}

{2}repeats the group contents below exactly 2 times:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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)

Character Class[0-9]+

+matches at least one character from the set below:

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9]+

+matches at least one character from the set below:

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

$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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

^([^-]*)(-[a-zA-Z0-9]+){2}-[0-9]+-[0-9]+$

New

abc45-dsg5-gfdvh6-9890-7685
abc
abc-gf5-dfg5-asd5-98-00

$1

abc45-dsg5-gfdvh6-9890-7685
abc
abc-gf5-dfg5-asd5-98-00