regex101: JavaScript Match Workspace

Pro

\ban ASCII word boundary

KEYWORD1the literal text KEYWORD1 (case sensitive)

\ban ASCII word boundary

Non-Capturing Group(?:(?<=\bKeyWord2\b.*?)|(?=.*?\bKeyWord2\b))

1st Alternative(?<=\bKeyWord2\b.*?)

Positive Lookbehind(?<=\bKeyWord2\b.*?)

\ban ASCII word boundary

KeyWord2the literal text KeyWord2 (case sensitive)

\ban ASCII word boundary

.*?any character (except for line terminators), repeated any number of times

2nd Alternative(?=.*?\bKeyWord2\b)

Positive Lookahead(?=.*?\bKeyWord2\b)

.*?any character (except for line terminators), repeated any number of times

\ban ASCII word boundary

KeyWord2the literal text KeyWord2 (case sensitive)

\ban ASCII word boundary

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

26 tokens

Regular Expression

\bKEYWORD1\b(?:(?<=\bKeyWord2\b.*?)|(?=.*?\bKeyWord2\b))

New

KEYWORD1 is ahead of Keyword2
KEYWORD1 is ahead of Keyword2 and another KeyWord2
KeyWord2 is behind KEYWORD1
KEYWORD1 is ahead of KEYWORD1 and behind KeyWord2
KeyWord2 is twice of KeyWord2 and in the end KEYWORD1
KEYWORD1 is

Extraction

KEYWORD1 is ahead of Keyword2
KEYWORD1 is ahead of Keyword2 and another KeyWord2
KeyWord2 is behind KEYWORD1
KEYWORD1 is ahead of KEYWORD1 and behind KeyWord2
KeyWord2 is twice of KeyWord2 and in the end KEYWORD1
KEYWORD1 is