Regular Expressions 101

Non-Capturing Group(?:[^a-zA-Z0-9]*[a-zA-Z0-9]){3}

{3}repeats the group contents below exactly 3 times:

Negated Character Class[^a-zA-Z0-9]*

*matches any number of characters outside the set below:

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Character Class[a-zA-Z0-9]

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

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

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

(?:[^a-zA-Z0-9]*[a-zA-Z0-9]){3}.*

New

'a3c'
'_0_c_8_'
' 9 9d '