Regular Expressions 101

Explanation

Pro

\ban ASCII word boundary

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

Character Class[A-Z]{2}

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

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

Negated Character Class[^A-Z0-9]*?

*?matches any number of characters outside the set below:

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

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

Group 2([0-9]{1,2})

Character Class[0-9]{1,2}

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

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

Negated Character Class[^A-Z0-9]*?

*?matches any number of characters outside the set below:

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

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

Group 3([A-Z]{0,3})

Character Class[A-Z]{0,3}

{0,3}matches between 0 and 3 characters from the set below:

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

Negated Character Class[^A-Z0-9]*?

*?matches any number of characters outside the set below:

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

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

Group 4([0-9]{4})

Character Class[0-9]{4}

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

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

\ban ASCII word boundary

Global pattern flags

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

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

\b([A-Z]{2})[^A-Z0-9]*?([0-9]{1,2})[^A-Z0-9]*?([A-Z]{0,3})[^A-Z0-9]*?([0-9]{4})\b

New

MP13QH3998
MP-13-QH-3998
MP 13 QH 3998
RJ 03QH3918
RJ 03QH3918
MP,,,03-QH3998
MP03QH3998

invalid inputs:
MP,,01,03-QH3998
MP0203QH3998
MP03QJJH3998
MP03QH399998

Extraction

MP13QH3998
MP-13-QH-3998
MP 13 QH 3998
RJ 03QH3918
RJ 03QH3918
MP,,,03-QH3998
MP03QH3998

invalid inputs:
MP,,01,03-QH3998
MP0203QH3998
MP03QJJH3998
MP03QH399998