Regular Expressions 101

Negative Lookahead(?!(^ita\s?eng\s?ita))

Group 1(^ita\s?eng\s?ita)

^start of string

itathe literal text ita (case insensitive)

\s?optionally matches any whitespace character

engthe literal text eng (case insensitive)

\s?optionally matches any whitespace character

itathe literal text ita (case insensitive)

\ban ASCII word boundary

engthe literal text eng (case insensitive)

\W+any non-word character, repeated at least once

Non-Capturing Group(?:\w+\W+)

\w+any word character, repeated at least once

\W+any non-word character, repeated at least once

subthe literal text sub (case insensitive)

\s?optionally matches any whitespace character

itathe literal text ita (case insensitive)

\ban ASCII word boundary

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?!(^ita\s?eng\s?ita))\beng\W+(?:\w+\W+)sub\s?ita\b

New

Lucifer S03e15 [XviD - Eng Mp3 - Sub Ita Eng] DLRip By Pir8 [CURA] Fede e Religioni
Lucifer S03e01-08 [XviD - Eng Mp3 - Sub Ita Eng] DLRip By Pir8 [CURA] Fede e Religioni SEASON PREMIERE
Young Sheldon S01e13 [SATRip 720p - H264 - Eng Ac3 - Sub Ita] HDTV by AVS
Young Sheldon S01e08 [Mux 1080p - H264 - Ita Eng Ac3 - Sub Ita Eng] WEBMux Morpheus

Regular Expression

Substitution