Regular Expressions 101

Pro

Group 1((?:s?he(?: i|')s|(?:you|they|we)(?: a|')re|I(?: a|')m).{1,20})

Non-Capturing Group(?:s?he(?: i|')s|(?:you|they|we)(?: a|')re|I(?: a|')m)

1st Alternatives?he(?: i|')s

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

hethe literal text he (case insensitive)

Non-Capturing Group(?: i|')

1st Alternative i

ithe literal text i (case insensitive)

2nd Alternative'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

2nd Alternative(?:you|they|we)(?: a|')re

Non-Capturing Group(?:you|they|we)

1st Alternativeyou

youthe literal text you (case insensitive)

2nd Alternativethey

theythe literal text they (case insensitive)

3rd Alternativewe

wethe literal text we (case insensitive)

Non-Capturing Group(?: a|')

1st Alternative a

athe literal text a (case insensitive)

2nd Alternative'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

rethe literal text re (case insensitive)

3rd AlternativeI(?: a|')m

Ithe literal I (73₁₀ / 111₈ / 49₁₆) (case insensitive)

Non-Capturing Group(?: a|')

1st Alternative a

athe literal text a (case insensitive)

2nd Alternative'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case insensitive)

.{1,20}any character (except for line terminators), repeated between 1 and 20 times

\ban ASCII word boundary

Group 2(Fan)

Fanthe literal text Fan (case insensitive)

Group 3(s?)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

\ban ASCII word boundary

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

((?:s?he(?: i|')s|(?:you|they|we)(?: a|')re|I(?: a|')m).{1,20})\b(Fan)(s?)\b

New

He's the bigest fan I know.
I am a huge fan of his.
I know she has lots of fans in his club
I was cold and turned on the fan
An air conditioner is better than 2 fans at cooling.

Extraction

He's the bigest fan I know.
I am a huge fan of his.
I know she has lots of fans in his club
I was cold and turned on the fan
An air conditioner is better than 2 fans at cooling.