Regular Expressions 101

Pro

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)

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

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

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

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

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

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

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

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

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

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[\d]{0,2}

{0,2}matches between 0 and 2 characters from the set below:

\da digit

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-Z]{2}\d{2} ?\d{4} ?\d{4} ?\d{4} ?\d{4} ?[\d]{0,2}

New

DE89 3704 0044 0532 0130 00         DE89370400440532013000
AT61 1904 3002 3457 3201            AT611904300234573201
FR14 2004 1010 0505 0001 3          FR1420041010050500013