Regular Expressions 101

^start of line

Negative Lookahead(?!.*[_G-Z])

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

Character Class[_G-Z]

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

G-Zone character from G (71₁₀) to Z (90₁₀) (case insensitive)

\wany word character

Group 1([:-]?)

Character Class[:-]?

?matches at most one character from the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:\w\w\1){6}

{6}repeats the group contents below exactly 6 times:

\wany word character

\1the text saved by group 1

\wany word character

$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

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^(?!.*[_G-Z])\w\w([:-]?)(?:\w\w\1){6}\w\w$

New

00:13:a2:00:41:8b:93:7a
0013a200418b937a
AD:12:13:FC:14:EE:FF:FF
ad-12-13-fc-14-ee-ff-ad
ad-12-13-fc:14-ee-ff-ad
ad-12-13-fc14-ee-ff-ad
0013a200418b:937a

Regular Expression

Substitution