regex101: UK Postcode matcher

^start of string

Group 1(([gG][iI][rR] {0,}0[aA]{2})|((([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y]?[0-9][0-9]?)|(([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])|([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y]))) {0,}[0-9][abd-hjlnp-uw-zABD-HJLNP-UW-Z]{2}))

1st Alternative([gG][iI][rR] {0,}0[aA]{2})

Group 2([gG][iI][rR] {0,}0[aA]{2})

Character Class[gG]

gthe literal g (103₁₀ / 147₈ / 67₁₆) (case sensitive)

Gthe literal G (71₁₀ / 107₈ / 47₁₆) (case sensitive)

Character Class[iI]

ithe literal i (105₁₀ / 151₈ / 69₁₆) (case sensitive)

Ithe literal I (73₁₀ / 111₈ / 49₁₆) (case sensitive)

Character Class[rR]

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case sensitive)

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case sensitive)

{0,}the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[aA]{2}

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

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

2nd Alternative((([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y]?[0-9][0-9]?)|(([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])|([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y]))) {0,}[0-9][abd-hjlnp-uw-zABD-HJLNP-UW-Z]{2})

Group 3((([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y]?[0-9][0-9]?)|(([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])|([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y]))) {0,}[0-9][abd-hjlnp-uw-zABD-HJLNP-UW-Z]{2})

Group 4(([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y]?[0-9][0-9]?)|(([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])|([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y])))

1st Alternative([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y]?[0-9][0-9]?)

Group 5([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y]?[0-9][0-9]?)

Character Class[a-pr-uwyzA-PR-UWYZ]

a-pone character from a (97₁₀) to p (112₁₀) (case sensitive)

r-uone character from r (114₁₀) to u (117₁₀) (case sensitive)

wthe literal w (119₁₀ / 167₈ / 77₁₆) (case sensitive)

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

zthe literal z (122₁₀ / 172₈ / 7A₁₆) (case sensitive)

A-Pone character from A (65₁₀) to P (80₁₀) (case sensitive)

R-Uone character from R (82₁₀) to U (85₁₀) (case sensitive)

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case sensitive)

Ythe literal Y (89₁₀ / 131₈ / 59₁₆) (case sensitive)

Zthe literal Z (90₁₀ / 132₈ / 5A₁₆) (case sensitive)

Character Class[a-hk-yA-HK-Y]?

?matches at most one character from the set below:

a-hone character from a (97₁₀) to h (104₁₀) (case sensitive)

k-yone character from k (107₁₀) to y (121₁₀) (case sensitive)

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

K-Yone character from K (75₁₀) to Y (89₁₀) (case sensitive)

Character Class[0-9]

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

Character Class[0-9]?

?matches at most one character from the set below:

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

2nd Alternative(([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])|([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y]))

Group 6(([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])|([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y]))

1st Alternative([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])

Group 7([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])

Character Class[a-pr-uwyzA-PR-UWYZ]

a-pone character from a (97₁₀) to p (112₁₀) (case sensitive)

r-uone character from r (114₁₀) to u (117₁₀) (case sensitive)

wthe literal w (119₁₀ / 167₈ / 77₁₆) (case sensitive)

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

zthe literal z (122₁₀ / 172₈ / 7A₁₆) (case sensitive)

A-Pone character from A (65₁₀) to P (80₁₀) (case sensitive)

R-Uone character from R (82₁₀) to U (85₁₀) (case sensitive)

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case sensitive)

Ythe literal Y (89₁₀ / 131₈ / 59₁₆) (case sensitive)

Zthe literal Z (90₁₀ / 132₈ / 5A₁₆) (case sensitive)

Character Class[0-9]

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

Character Class[a-hjkstuwA-HJKSTUW]

a-hone character from a (97₁₀) to h (104₁₀) (case sensitive)

jthe literal j (106₁₀ / 152₈ / 6A₁₆) (case sensitive)

kthe literal k (107₁₀ / 153₈ / 6B₁₆) (case sensitive)

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

tthe literal t (116₁₀ / 164₈ / 74₁₆) (case sensitive)

uthe literal u (117₁₀ / 165₈ / 75₁₆) (case sensitive)

wthe literal w (119₁₀ / 167₈ / 77₁₆) (case sensitive)

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

Jthe literal J (74₁₀ / 112₈ / 4A₁₆) (case sensitive)

Kthe literal K (75₁₀ / 113₈ / 4B₁₆) (case sensitive)

Sthe literal S (83₁₀ / 123₈ / 53₁₆) (case sensitive)

Tthe literal T (84₁₀ / 124₈ / 54₁₆) (case sensitive)

Uthe literal U (85₁₀ / 125₈ / 55₁₆) (case sensitive)

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case sensitive)

2nd Alternative([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y])

Group 8([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y])

Character Class[a-pr-uwyzA-PR-UWYZ]

Character Class[a-hk-yA-HK-Y]

Character Class[0-9]

Character Class[abehmnprv-yABEHMNPRV-Y]

{0,}the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

Character Class[0-9]

Character Class[abd-hjlnp-uw-zABD-HJLNP-UW-Z]{2}

$end of string, or before its final line terminator

the literal ↵ (10₁₀ / 12₈ / A₁₆)

Search reference

Regular Expression

^(([gG][iI][rR] {0,}0[aA]{2})|((([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y]?[0-9][0-9]?)|(([a-pr-uwyzA-PR-UWYZ][0-9][a-hjkstuwA-HJKSTUW])|([a-pr-uwyzA-PR-UWYZ][a-hk-yA-HK-Y][0-9][abehmnprv-yABEHMNPRV-Y]))) {0,}[0-9][abd-hjlnp-uw-zABD-HJLNP-UW-Z]{2}))$

New

BA13pU