Regular Expressions 101

Pro

Group 1([^\.!?…\n]*[\.!?…])?

?repeats the group contents below at most once:

Negated Character Class[^\.!?…\n]*

*matches any number of characters outside the set below:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

…the literal … (8230₁₀ / 20046₈ / 2026₁₆)

\na line-feed (newline) character (ASCII 10)

Character Class[\.!?…]

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

…the literal … (8230₁₀ / 20046₈ / 2026₁₆)

Group 2((?:[^\.!?…]*[\.!?…])*?)

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

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

Negated Character Class[^\.!?…]*

*matches any number of characters outside the set below:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

…the literal … (8230₁₀ / 20046₈ / 2026₁₆)

Character Class[\.!?…]

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

…the literal … (8230₁₀ / 20046₈ / 2026₁₆)

Group 3([^\.!?…\n]*)

Negated Character Class[^\.!?…\n]*

*matches any number of characters outside the set below:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

…the literal … (8230₁₀ / 20046₈ / 2026₁₆)

\na line-feed (newline) character (ASCII 10)

Detailed match information will be displayed here automatically.

25 tokens

([^\.!?…\n]*[\.!?…])?((?:[^\.!?…]*[\.!?…])*?)([^\.!?…\n]*)\n

New

This is a sentence. This is a sentence too. So is this. And this
is a sentence, split onto different lines.