Regular Expressions 101

Positive Lookahead(?=([A-Z]\d[A-Z]\s*\d[A-Z]\d))

Group 1([A-Z]\d[A-Z]\s*\d[A-Z]\d)

Character Class[A-Z]

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

\da digit

Character Class[A-Z]

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

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

\da digit

Character Class[A-Z]

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

\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.

Search reference

Regular Expression

(?=([A-Z]\d[A-Z]\s*\d[A-Z]\d))

New

SOMETEXTJ9H5G0L2J0OTHERSTUFF
SOMETEXTA0A 0A0OTHERSTUFF
SOMETEXTB1A0A0A0OTHERSTUFFB2A B2BOTHER