Regular Expressions 101

Explanation

Pro

(?i)applies the following effective flags to the remainder of the pattern: gmi

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

Negative Lookahead(?!.*nowEXCLUDE.*)

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

nowEXCLUDEthe literal text nowEXCLUDE (case insensitive)

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

Test123the literal text Test123 (case insensitive)

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

Detailed match information will be displayed here automatically.

25 tokens

(?i)(?!.*nowEXCLUDE.*)Test123

New

abc def ghi jkl mno
abc def ghi test123 jkl mno
abc def ghi test123 jkl nowEXCLUDE mno
abc def ghi jkl nowEXCLUDE mno

abc def ghi jkl mno
abc def ghi test123 jkl mno
abc def ghi test123 jkl nowEXCLUDE mno
abc def ghi jkl nowEXCLUDE mno