Regular Expressions 101

Explanation
Pro

\ban ASCII word boundary

Group 1([AW|BW|AS]{2})

Character Class[AW|BW|AS]{2}

{2}matches exactly 2 characters from the set below:

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case insensitive)

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case insensitive)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

Bthe literal B (66₁₀ / 102₈ / 42₁₆) (case insensitive)

Sthe literal S (83₁₀ / 123₈ / 53₁₆) (case insensitive)

Group 2(\d{4})

\d{4}a digit, repeated exactly 4 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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Detailed match information will be displayed here automatically.

25 tokens

\b([AW|BW|AS]{2})(\d{4})

New

AW0001
AW0002
BW0001
BW0002
AS0001
BS0002
AW0001
AW0002
BW0001
BW0002
AS0001
BS0002
AG0002

AW0001
AW0002
BW0001
BW0002
AS0001
BS0002
AW0001
AW0002
BW0001
BW0002
AS0001
BS0002
AG0002