regex101: Java Substitution Workspace

Positive Lookbehind(?<=[а-яА-ЯёЁ])

Character Class[а-яА-ЯёЁ]

а-яone character from а (1072₁₀) to я (1103₁₀) (case sensitive)

А-Яone character from А (1040₁₀) to Я (1071₁₀) (case sensitive)

ёthe literal ё (1105₁₀ / 2121₈ / 451₁₆) (case sensitive)

Ёthe literal Ё (1025₁₀ / 2001₈ / 401₁₆) (case sensitive)

Character Class[а-яА-ЯёЁ]

а-яone character from а (1072₁₀) to я (1103₁₀) (case sensitive)

А-Яone character from А (1040₁₀) to Я (1071₁₀) (case sensitive)

ёthe literal ё (1105₁₀ / 2121₈ / 451₁₆) (case sensitive)

Ёthe literal Ё (1025₁₀ / 2001₈ / 401₁₆) (case sensitive)

Positive Lookahead(?=[а-яА-ЯёЁ])

Character Class[а-яА-ЯёЁ]

а-яone character from а (1072₁₀) to я (1103₁₀) (case sensitive)

А-Яone character from А (1040₁₀) to Я (1071₁₀) (case sensitive)

ёthe literal ё (1105₁₀ / 2121₈ / 451₁₆) (case sensitive)

Ёthe literal Ё (1025₁₀ / 2001₈ / 401₁₆) (case sensitive)

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

27 tokens

Regular Expression

(?<=[а-яА-ЯёЁ])[а-яА-ЯёЁ](?=[а-яА-ЯёЁ])

New

фыва
dvr.ef .e f .rf rf .rfadscc, fr.... r frf, 
ыфвыв валпыап млк млек мк ме.
убамбска бка к,М.а ка.мкмк .мКА.мска.мскамска.мкакм..

ОченьПлохоеСлово и ещё, but this is good word

Extraction

фыва
dvr.ef .e f .rf rf .rfadscc, fr.... r frf, 
ыфвыв валпыап млк млек мк ме.
убамбска бка к,М.а ка.мкмк .мКА.мска.мскамска.мкакм..

ОченьПлохоеСлово и ещё, but this is good word