Regular Expressions 101

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

Group 1(\b(?:AND|OR|NOT)\b|[()])

1st Alternative\b(?:AND|OR|NOT)\b

\ba Unicode word boundary

Non-Capturing Group(?:AND|OR|NOT)

1st AlternativeAND

ANDthe literal text AND (case sensitive)

2nd AlternativeOR

ORthe literal text OR (case sensitive)

3rd AlternativeNOT

NOTthe literal text NOT (case sensitive)

\ba Unicode word boundary

2nd Alternative[()]

Character Class[()]

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

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

\s*(\b(?:AND|OR|NOT)\b|[()])\s*

New

Frank and Bob are nice AND NOT (Henry is good OR Sam is 102 years old)

Frank and Bob are nice AND NOT (Henry is good OR Sam is 102 years old)