Regular Expressions 101

\ba Unicode word boundary

Character Class[A-Z]

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

Positive Lookahead(?=([&.]?))

Group 1([&.]?)

Character Class[&.]?

?matches at most one character from the set below:

&the literal & (38₁₀ / 46₈ / 26₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:\1[A-Z])+

+repeats the group contents below at least once:

\1the text saved by group 1

Character Class[A-Z]

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

\ba Unicode word boundary

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

\b[A-Z](?=([&.]?))(?:\1[A-Z])+\b

New

My name is STEVE. My friend works at (I.A.). Indian Army(IA). B&W also B&&W Also I...A

My name is STEVE. My friend works at (I.A.). Indian Army(IA). B&W also B&&W Also I...A