regex101: PCRE (Legacy) Match Workspace

Group 1((?<=\.)|\s*^)

1st Alternative(?<=\.)

Positive Lookbehind(?<=\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2nd Alternative\s*^

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

^start of line

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

Group 2(I )?

?repeats the group contents below at most once:

I the literal text I (case insensitive)

hope the literal text hope (case insensitive)

Group 3(it|this|that)

1st Alternativeit

itthe literal text it (case insensitive)

2nd Alternativethis

thisthe literal text this (case insensitive)

3rd Alternativethat

thatthe literal text that (case insensitive)

Group 4( will\b| can\b)?

?repeats the group contents below at most once:

1st Alternative will\b

willthe literal text will (case insensitive)

\ban ASCII word boundary

2nd Alternative can\b

canthe literal text can (case insensitive)

\ban ASCII word boundary

helpthe literal text help (case insensitive)

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

Group 5( (you|someone(?:\h*else)?)\b)?

?repeats the group contents below at most once:

the literal (32₁₀ / 40₈ / 20₁₆)

Group 6(you|someone(?:\h*else)?)

1st Alternativeyou

youthe literal text you (case insensitive)

2nd Alternativesomeone(?:\h*else)?

someonethe literal text someone (case insensitive)

Non-Capturing Group(?:\h*else)?

?repeats the group contents below at most once:

\h*any horizontal whitespace character, repeated any number of times

elsethe literal text else (case insensitive)

\ban ASCII word boundary

Group 7(:-?\)|��️|[!.;,\s])*?

*?repeats the group contents below any number of times:

1st Alternative:-?\)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative��️

��️the literal text 🙂️

3rd Alternative[!.;,\s]

Character Class[!.;,\s]

!the literal ! (33₁₀ / 41₈ / 21₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\sany whitespace character

Group 8(\s*(cheers|good ?luck)([!,.]*))?

?repeats the group contents below at most once:

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

Group 9(cheers|good ?luck)

1st Alternativecheers

cheersthe literal text cheers (case insensitive)

2nd Alternativegood ?luck

Group 10([!,.]*)

$end of line

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

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

Search reference

Regular Expression

((?<=\.)|\s*^)\s*(I )?hope (it|this|that)( will\b| can\b)? helps?( (you|someone(?:\h*else)?)\b)?(:-?\)|🙂️|[!.;,\s])*?(\s*(cheers|good ?luck)([!,.]*))?$

Test String
New

Help it hopes

Regular Expressions 101

Regular Expression

Test String
New

Substitution
Processing...

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
Processing...