regex101: JavaScript Match Workspace

Non-Capturing Group(?:\s|^)

1st Alternative\s

\sany whitespace character

2nd Alternative^

^start of line

Non-Capturing Group(?:["'‘“'"\[({⟨].*?[.?!](?:\s[.?!])*["'’”'"\])}⟩]|\S.*?[.?!](?:\s[.?!])*)

1st Alternative["'‘“'"\[({⟨].*?[.?!](?:\s[.?!])*["'’”'"\])}⟩]

Character Class["'‘“'"\[({⟨]

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

‘the literal ‘ (8216₁₀ / 20030₈ / 2018₁₆)

“the literal “ (8220₁₀ / 20034₈ / 201C₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

⟨the literal ⟨ (10216₁₀ / 23750₈ / 27E8₁₆)

.*?any character (except for line terminators), repeated any number of times

Character Class[.?!]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Non-Capturing Group(?:\s[.?!])*

*repeats the group contents below any number of times:

\sany whitespace character

Character Class[.?!]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Character Class["'’”'"\])}⟩]

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

’the literal ’ (8217₁₀ / 20031₈ / 2019₁₆)

”the literal ” (8221₁₀ / 20035₈ / 201D₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

⟩the literal ⟩ (10217₁₀ / 23751₈ / 27E9₁₆)

2nd Alternative\S.*?[.?!](?:\s[.?!])*

\Sany non-whitespace character

.*?any character (except for line terminators), repeated any number of times

Character Class[.?!]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Non-Capturing Group(?:\s[.?!])*

*repeats the group contents below any number of times:

\sany whitespace character

Character Class[.?!]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Positive Lookahead(?=\s|$)

1st Alternative\s

\sany whitespace character

2nd Alternative$

$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

Search reference

Regular Expression

(?:\s|^)(?:["'‘“'"\[({⟨].*?[.?!](?:\s[.?!])*["'’”'"\])}⟩]|\S.*?[.?!](?:\s[.?!])*)(?=\s|$)

Test String
New

The definite article is the word the. It limits the meaning of a noun to one particular thing. For example, your friend might ask, “Are you going to the party this weekend?” The definite article tells you that your friend is referring to a specific party that both of you know about. The definite article can be used with singular, plural, or uncountable nouns. Is this a sentence?

Regular Expressions 101

Regular Expression

Test String
New

Substitution
Processing...

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
Processing...