Regular Expressions 101

Pro

^start of line

Negative Lookahead(?!zzz)

zzzthe literal text zzz (case sensitive)

Positive Lookahead(?=\S{2,5000}$)

\S{2,5000}any non-whitespace character, repeated between 2 and 5000 times

$end of line

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

Group 1(.{3}//.{0,100})

.{3}any character (except for line terminators), repeated exactly 3 times

//the literal text //

.{0,100}any character (except for line terminators), repeated between 0 and 100 times

Negative Lookahead(?!\w)

\wany word character

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

^(?!zzz)(?=\S{2,5000}$).*(.{3}//.{0,100})(?!\w)

New

ssdfsdfsdfasdfasdfasdfdfd//yH5BAEkjfsdafdfsafasdfas
zzzsdf//yH5BAEkjfsdafdfsafasdfas
ssdfsdfsdfasdfasdfasdfdfd//yH5B

ssdfsdfsdfasdfasdfasdfdfd//yH5BAEkjfsdafdfsafasdfas
zzzsdf//yH5BAEkjfsdafdfsafasdfas
ssdfsdfsdfasdfasdfasdfdfd//yH5B