Regular Expressions 101

Explanation
Pro

^start of line

Character Class[A-CEGHJ-PR-TW-Z]{2}

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

A-Cone character from A (65₁₀) to C (67₁₀) (case sensitive)

Ethe literal E (69₁₀ / 105₈ / 45₁₆) (case sensitive)

Gthe literal G (71₁₀ / 107₈ / 47₁₆) (case sensitive)

Hthe literal H (72₁₀ / 110₈ / 48₁₆) (case sensitive)

J-Pone character from J (74₁₀) to P (80₁₀) (case sensitive)

R-Tone character from R (82₁₀) to T (84₁₀) (case sensitive)

W-Zone character from W (87₁₀) to Z (90₁₀) (case sensitive)

Character Class[0-9]{6}

{6}matches exactly 6 characters from the set below:

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

Character Class[A-DFM]{1}

{1}matches one character from the set below:

A-Done character from A (65₁₀) to D (68₁₀) (case sensitive)

Fthe literal F (70₁₀ / 106₈ / 46₁₆) (case sensitive)

Mthe literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive)

$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

^[A-CEGHJ-PR-TW-Z]{2}[0-9]{6}[A-DFM]{1}$

QQ123456C
AA123456C
KM673437D
AQ123456C

QQ123456C
AA123456C
KM673437D
AQ123456C