regex101: Validate and split street and house number (trailing house number)

^start of line

Group street(?<street>(?!\d+ )[\p{L}\d'\u2018-\u2019]+\.?(?:[ -][\p{L}\d'\u2018-\u2019]+\.?)*(?<! \d+))

Negative Lookahead(?!\d+ )

\d+a digit, repeated at least once

the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[\p{L}\d'\u2018-\u2019]+

+matches at least one character from the set below:

\p{L}any Unicode letter

\da digit

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\u2018-\u2019one character from ‘ (8216₁₀) to ’ (8217₁₀)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:[ -][\p{L}\d'\u2018-\u2019]+\.?)*

*repeats the group contents below any number of times:

Character Class[ -]

the literal (32₁₀ / 40₈ / 20₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[\p{L}\d'\u2018-\u2019]+

+matches at least one character from the set below:

\p{L}any Unicode letter

\da digit

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\u2018-\u2019one character from ‘ (8216₁₀) to ’ (8217₁₀)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

Negative Lookbehind(?<! \d+)

the literal (32₁₀ / 40₈ / 20₁₆)

\d+a digit, repeated at least once

,?optionally matches the literal , (44₁₀ / 54₈ / 2C₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Group houseNumber(?<houseNumber>[1-9\p{L}][\d\p{L}]*(?:(?: | ?[\-/+,] ?)[\d\p{L}]+)*?)

Character Class[1-9\p{L}]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\p{L}any Unicode letter

Character Class[\d\p{L}]*

*matches any number of characters from the set below:

\da digit

\p{L}any Unicode letter

Non-Capturing Group(?:(?: | ?[\-/+,] ?)[\d\p{L}]+)*?

*?repeats the group contents below any number of times:

Non-Capturing Group(?: | ?[\-/+,] ?)

1st Alternative

the literal (32₁₀ / 40₈ / 20₁₆)

2nd Alternative ?[\-/+,] ?

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[\-/+,]

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[\d\p{L}]+

+matches at least one character from the set below:

\da digit

\p{L}any Unicode letter

$end of line

Global pattern flags

u modifier: unicode. Enables Unicode-aware matching and escape syntax

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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

Search reference

Regular Expression

^(?<street>(?!\d+ )[\p{L}\d'\u2018-\u2019]+\.?(?:[ -][\p{L}\d'\u2018-\u2019]+\.?)*(?<! \d+)),? (?<houseNumber>[1-9\p{L}][\d\p{L}]*(?:(?: | ?[\-/+,] ?)[\d\p{L}]+)*?)$

New

Test-Straße 1
Chaussée de Tirlemont 373
Mühlenstraße 23
Straße des 17. Juni 135
4th Street 12ab
3rd Avenue 1435
Hamburger Str. 11-19
K4 12
Test-Str. 12ab
Test-Str. 12a-d
Test Str. 51 16
Test-Str. 17/18
Test Str. QA/3/31
Test Str. 51 / XX / 31