Regular Expressions 101

Pro

Negative Lookbehind(?<![a-zA-Z])

Character Class[a-zA-Z]

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

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

Character Class[a-zA-Z]

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

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

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

\d+a digit, repeated at least once

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])[a-zA-Z]\K\d+

New

A12B8Y9CC10
V5C8I17
KK18II9
I8VV22ZZ4S9U2
A18Z12I

A12B8Y9CC10
V5C8I17
KK18II9
I8VV22ZZ4S9U2
A18Z12I