Regular Expressions 101

Pro

Positive Lookbehind(?<=[A-Z]{2}-\d{4}-)

Character Class[A-Z]{2}

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d{4}a digit, repeated exactly 4 times

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 1(\d{2})

\d{2}a digit, repeated exactly 2 times

Positive Lookahead(?= to -??\d{2})

to the literal text to (case sensitive)

-??optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\d{2}a digit, repeated exactly 2 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-Z]{2}-\d{4}-)(\d{2})(?= to -??\d{2})

New

AR-0000-00 to -88
AR-0000-00 to 88
AR-0000-21 to -88

GB-1234-90 to -00

GB-2222-00 to 20

GB-2222-00 to

B-22-00 to 20