Regular Expressions 101

Pro

Negative Lookahead(?!(COM|СОМ))

Group 1(COM|СОМ)

1st AlternativeCOM

COMthe literal text COM (case insensitive)

2nd AlternativeСОМ

СОМthe literal text СОМ (case insensitive)

\d{11,19}a Unicode decimal digit, repeated between 11 and 19 times

Global pattern flags

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

u modifier: unicode. Treats the pattern and subject as UTF-16

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

Detailed match information will be displayed here automatically.

25 tokens

(?!(COM|СОМ))\d{11,19}

New

А23123132323B 123 BBB123123123DDD СЧ 80060050044, COM231231231231 80060050044 BBB123123123DDD 333