Regular Expressions 101

^start of line

Group 1(VI[0-9]{4}(?:BV)?(?:\d{2})?(D|H|MIN|MAX)?)+

+repeats the group contents below at least once:

VIthe literal text VI (case sensitive)

Character Class[0-9]{4}

{4}matches exactly 4 characters from the set below:

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

Non-Capturing Group(?:BV)?

?repeats the group contents below at most once:

BVthe literal text BV (case sensitive)

Non-Capturing Group(?:\d{2})?

?repeats the group contents below at most once:

\d{2}a digit, repeated exactly 2 times

Group 2(D|H|MIN|MAX)?

?repeats the group contents below at most once:

1st AlternativeD

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case sensitive)

2nd AlternativeH

Hthe literal H (72₁₀ / 110₈ / 48₁₆) (case sensitive)

3rd AlternativeMIN

MINthe literal text MIN (case sensitive)

4th AlternativeMAX

MAXthe literal text MAX (case sensitive)

$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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^(VI[0-9]{4}(?:BV)?(?:\d{2})?(D|H|MIN|MAX)?)+$

New

6789
VI2111
VI2122
VI2122MIN
VI2122MAX
VI2122MUN
VI210021
VI210021D
VI210021H
VI210021X
VI2100BVMIN
VI2100BVMAX
VI2100
VI21001