Regular Expressions 101

Group 1(\S+(?:ая|ые|ый|ья))

\S+any non-whitespace character, repeated at least once

Non-Capturing Group(?:ая|ые|ый|ья)

1st Alternativeая

аяthe literal text ая (case insensitive)

2nd Alternativeые

ыеthe literal text ые (case insensitive)

3rd Alternativeый

ыйthe literal text ый (case insensitive)

4th Alternativeья

ьяthe literal text ья (case insensitive)

Non-Capturing Group(?:\s|$)

1st Alternative\s

\sany whitespace character

2nd Alternative$

$end of string, or before its final line terminator

Global pattern flags

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

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(\S+(?:ая|ые|ый|ья))(?:\s|$)

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большие проыесторые