Regular Expressions 101

^start of line

Group 1([A-Z]{1,2})

Character Class[A-Z]{1,2}

{1,2}matches between 1 and 2 characters from the set below:

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

\sany whitespace character

Group 2([A-Z]{1,3})

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)

\sany whitespace character

Group 3([0-9]{4}(?<!0{4}))

Character Class[0-9]{4}

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

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

Negative Lookbehind(?<!0{4})

0{4}the literal 0 (48₁₀ / 60₈ / 30₁₆) , repeated exactly 4 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.

Search reference

Regular Expression

^([A-Z]{1,2})\s([A-Z]{1,3})\s([0-9]{4}(?<!0{4}))

New

# Sri Lankan Modern Licence Number Plate Regex #

1-0001
10-0010
111-0000
000-1112
A-3049
KJ-6825
AAC-3422

SP ABC 3429