Regular Expressions 101

Pro

\da Unicode decimal digit

Character Class[A-Z]?

?matches at most one character from the set below:

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

Non-Capturing Group(?:\s*(?:and|or|,)\s*\d\d[A-Z]?)*

*repeats the group contents below any number of times:

\s*a Unicode whitespace character, repeated any number of times

Non-Capturing Group(?:and|or|,)

1st Alternativeand

andthe literal text and (case sensitive)

2nd Alternativeor

orthe literal text or (case sensitive)

3rd Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\s*a Unicode whitespace character, repeated any number of times

\da Unicode decimal digit

Character Class[A-Z]?

?matches at most one character from the set below:

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

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

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

Detailed match information will be displayed here automatically.

25 tokens

\d\d[A-Z]?(?:\s*(?:and|or|,)\s*\d\d[A-Z]?)*

New

biscuits 10 are good
biscuits 20 and 30 are good
biscuits 40 and hot dog are good
but this one 50A and 50B and not ok

biscuits 10 are good
biscuits 20 and 30 are good
biscuits 40 and hot dog are good
but this one 50A and 50B and not ok