regex101: test

Negative Lookbehind(?<!\s{1}Jr[.!?]|\s{1}Mr[.!?]|\s{1}Mrs[.!?]|\s{1}Ms[.!?]|\s{1}Dr[.!?]|\s{1}Prof[.!?]|\s{1}Sr[.!?]|\s{1}vs[.!?]|\s{1}etc[.!?]|\s{1}no[.!?])

1st Alternative\s{1}Jr[.!?]

\s{1}any whitespace character, repeated exactly 1 time

Jrthe literal text Jr (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

2nd Alternative\s{1}Mr[.!?]

\s{1}any whitespace character, repeated exactly 1 time

Mrthe literal text Mr (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

3rd Alternative\s{1}Mrs[.!?]

\s{1}any whitespace character, repeated exactly 1 time

Mrsthe literal text Mrs (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

4th Alternative\s{1}Ms[.!?]

\s{1}any whitespace character, repeated exactly 1 time

Msthe literal text Ms (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

5th Alternative\s{1}Dr[.!?]

\s{1}any whitespace character, repeated exactly 1 time

Drthe literal text Dr (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

6th Alternative\s{1}Prof[.!?]

\s{1}any whitespace character, repeated exactly 1 time

Profthe literal text Prof (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

7th Alternative\s{1}Sr[.!?]

\s{1}any whitespace character, repeated exactly 1 time

Srthe literal text Sr (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

8th Alternative\s{1}vs[.!?]

\s{1}any whitespace character, repeated exactly 1 time

vsthe literal text vs (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

9th Alternative\s{1}etc[.!?]

\s{1}any whitespace character, repeated exactly 1 time

etcthe literal text etc (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

10th Alternative\s{1}no[.!?]

\s{1}any whitespace character, repeated exactly 1 time

nothe literal text no (case insensitive)

Character Class[.!?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Positive Lookbehind(?<=[.?!])

Character Class[.?!]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

\s+any whitespace character, repeated at least once

Positive Lookahead(?=[a-z])

Character Class[a-z]

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

Global pattern flags

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

Search reference

Regular Expression

(?<!\s{1}Jr[.!?]|\s{1}Mr[.!?]|\s{1}Mrs[.!?]|\s{1}Ms[.!?]|\s{1}Dr[.!?]|\s{1}Prof[.!?]|\s{1}Sr[.!?]|\s{1}vs[.!?]|\s{1}etc[.!?]|\s{1}no[.!?])(?<=[.?!])\s+(?=[a-z])

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