Regular Expressions 101

Pro

\ba Unicode word boundary

Non-Capturing Group(?:[^.?!]|https?://[^<>\s"\']++)*?

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

1st Alternative[^.?!]

Negated Character Class[^.?!]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

2nd Alternativehttps?://[^<>\s"\']++

httpthe literal text http (case sensitive)

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

://the literal text ://

Negated Character Class[^<>\s"\']++

++matches at least one character outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\sa Unicode whitespace character

"the literal " (34₁₀ / 42₈ / 22₁₆)

\'the literal ' (39₁₀ / 47₈ / 27₁₆)

sentencethe literal text sentence (case sensitive)

Non-Capturing Group(?:[^.?!]|https?://[^<>\s"\']++)*

*repeats the group contents below any number of times:

1st Alternative[^.?!]

Negated Character Class[^.?!]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

2nd Alternativehttps?://[^<>\s"\']++

httpthe literal text http (case sensitive)

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

://the literal text ://

Negated Character Class[^<>\s"\']++

++matches at least one character outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\sa Unicode whitespace character

"the literal " (34₁₀ / 42₈ / 22₁₆)

\'the literal ' (39₁₀ / 47₈ / 27₁₆)

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

u modifier: unicode. Treats the pattern and subject as UTF-16

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

\b(?:[^.?!]|https?://[^<>\s"\']++)*?sentence(?:[^.?!]|https?://[^<>\s"\']++)*

New

I don't want this piece! This is the <a href='https://example.com/my-sentence'>sentence</a> I want. In don't want this piece either

Substitution

I don't want this piece! This is the <a href='https://example.com/my-sentence'>sentence</a> I want. In don't want this piece either