Regular Expressions 101

Group code(?<code>\d+(?:A\d+)?(?:,\d+)*;)

\d+a digit, repeated at least once

Non-Capturing Group(?:A\d+)?

?repeats the group contents below at most once:

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

\d+a digit, repeated at least once

Non-Capturing Group(?:,\d+)*

*repeats the group contents below any number of times:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<code>\d+(?:A\d+)?(?:,\d+)*;)

New

4A2;
2A3,3;
18A7,4,5;
19A1; 8A5,2;
20A2; 21A1,5,4;
4B1.2
4B1 2