Regular Expressions 101

^start of line

Negative Lookahead(?!xxx-)

xxx-the literal text xxx- (case sensitive)

Negative Lookahead(?![^@]+@test\.com$)

Negated Character Class[^@]+

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

@testthe literal text @test (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

$end of line

Negated Character Class[^@]+

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Negated Character Class[^@\n]+

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\na line-feed (newline) character (ASCII 10)

$end of line

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

Regular Expression

^(?!xxx-)(?![^@]+@test\.com$)[^@]+@[^@\n]+$

New

abc@email.com
xxx-123@domain.com
abc.123@test.com