Regular Expressions 101

Group 1([A-Z0-9])

Character Class[A-Z0-9]

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

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

Group 2([A-Z0-9]{3})

Character Class[A-Z0-9]{3}

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

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

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

Group 3([A-Z0-9]{4})

Character Class[A-Z0-9]{4}

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

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

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

Group 4([A-Z0-9]{2})

Character Class[A-Z0-9]{2}

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

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

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

Group 5([A-Z0-9]{3})

Character Class[A-Z0-9]{3}

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

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

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

Group 6([A-Z0-9])

Character Class[A-Z0-9]

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

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

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

([A-Z0-9])([A-Z0-9]{3})([A-Z0-9]{4})([A-Z0-9]{2})([A-Z0-9]{3})([A-Z0-9])

New

X839WS21R4E877
X83RWS21B3E87A

$1-$2 $3 $4-$5 ($6)