Regular Expressions 101

Pro

Group 1([^@]{1}|^)

1st Alternative[^@]{1}

Negated Character Class[^@]{1}

{1}matches one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

2nd Alternative^

^start of line

Group 2(@[a-zA-z\d]+)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Character Class[a-zA-z\d]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-zone character from A (65₁₀) to z (122₁₀) (case sensitive)

\da digit

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

([^@]{1}|^)(@[a-zA-z\d]+)

New

@test1 стоп, не так все
@test1 не знаю даже @test1 тест@test1привет @@test1р
Привет, ребят @test2 как дела? @test1 @test2@test1
@test1п

@test1 стоп, не так все
@test1 не знаю даже @test1 тест@test1привет @@test1р
Привет, ребят @test2 как дела? @test1 @test2@test1
@test1п