regex101: French License Plate / Plaque Immatriculation en France

Explanation

Pro

1st Alternative[A-HJ-NP-TV-Z]{2}[\s-]{0,1}[0-9]{3}[\s-]{0,1}[A-HJ-NP-TV-Z]{2}

Character Class[A-HJ-NP-TV-Z]{2}

{2}matches exactly 2 characters from the set below:

A-Hone character from A (65₁₀) to H (72₁₀) (case sensitive)

J-None character from J (74₁₀) to N (78₁₀) (case sensitive)

P-Tone character from P (80₁₀) to T (84₁₀) (case sensitive)

V-Zone character from V (86₁₀) to Z (90₁₀) (case sensitive)

Character Class[\s-]{0,1}

{0,1}matches at most one character from the set below:

\sany whitespace character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9]{3}

{3}matches exactly 3 characters from the set below:

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

Character Class[\s-]{0,1}

{0,1}matches at most one character from the set below:

\sany whitespace character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-HJ-NP-TV-Z]{2}

{2}matches exactly 2 characters from the set below:

A-Hone character from A (65₁₀) to H (72₁₀) (case sensitive)

J-None character from J (74₁₀) to N (78₁₀) (case sensitive)

P-Tone character from P (80₁₀) to T (84₁₀) (case sensitive)

V-Zone character from V (86₁₀) to Z (90₁₀) (case sensitive)

2nd Alternative[0-9]{2,4}[\s-]{0,1}[A-Z]{1,3}[\s-]{0,1}[0-9]{2}

Character Class[0-9]{2,4}

{2,4}matches between 2 and 4 characters from the set below:

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

Character Class[\s-]{0,1}

{0,1}matches at most one character from the set below:

\sany whitespace character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Z]{1,3}

{1,3}matches between 1 and 3 characters from the set below:

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

Character Class[\s-]{0,1}

{0,1}matches at most one character from the set below:

\sany whitespace character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

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

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

Quick Reference

25 tokens

Regular Expression

[A-HJ-NP-TV-Z]{2}[\s-]{0,1}[0-9]{3}[\s-]{0,1}[A-HJ-NP-TV-Z]{2}|[0-9]{2,4}[\s-]{0,1}[A-Z]{1,3}[\s-]{0,1}[0-9]{2}

## OLD FROMAT (complete) ##
3123 AA 11
3123-AA-11
3123AA11
8987 VG 33
8987VG33

## OLD FORMAT (with few characters) ##
31 F 11

## NEW FORMAT ##
AA 123 BB
AA-222-BB
DD345EE

AO 123 BB // O is excluded
AI-123-BB // I is excluded
AU123BB // U is exclided
AZ 123 BI
AZ-123-BU
AZ123BO

Substitution

## OLD FROMAT (complete) ##
3123 AA 11
3123-AA-11
3123AA11
8987 VG 33
8987VG33

## OLD FORMAT (with few characters) ##
31 F 11

## NEW FORMAT ##
AA 123 BB
AA-222-BB
DD345EE

AO 123 BB // O is excluded
AI-123-BB // I is excluded
AU123BB // U is exclided
AZ 123 BI
AZ-123-BU
AZ123BO