regex101: Python Match Workspace

^start of line

Non-Capturing Group(?:[A-Z] \d|[^\W\d_]{2,}\.?)

1st Alternative[A-Z] \d

Character Class[A-Z]

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

the literal (32₁₀ / 40₈ / 20₁₆)

\da Unicode decimal digit

2nd Alternative[^\W\d_]{2,}\.?

Negated Character Class[^\W\d_]{2,}

{2,}matches at least 2 characters outside the set below:

\Wany character that is not a Unicode word character

\da Unicode decimal digit

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

Non-Capturing Group(?:[- '’][^\W\d_]+\.?)*

*repeats the group contents below any number of times:

Character Class[- '’]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

’the literal ’ (8217₁₀ / 20031₈ / 2019₁₆)

Negated Character Class[^\W\d_]+

+matches at least one character outside the set below:

\Wany character that is not a Unicode word character

\da Unicode decimal digit

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

$end of line

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

Search reference

Regular Expression

^(?:[A-Z] \d|[^\W\d_]{2,}\.?)(?:[- '’][^\W\d_]+\.?)*$

New

########### Absolutly Fine ################
Mainstreet.
Mainstreet
Main Street
Big New mainstreet
Mainstreet-New
Mains Str.
St. Alexander Street
Übermorgen Straße
John Kennedy Street
Bahnhofstr.
Leonhard-Eck-Str.
Älterweg
Graf-Anton-Weg
Alexanderstraße
Prof.-Ernst-Nathan-Straße
Prof.-Albert-Einstein-Weg
Prof. Ernst-Nathan-Straße
Prof. Albert-Einstein-Weg


########## Not very common but fine!!!  ###################
A 1
K 7
H 2
P 1
I 7
E 7
T 3


######## Not okay ################
A
B
Mainstreet #+;:_*´`?=)(/&%$§!
Mainstreet#+;:_*´`?=)(/&%$§!
Mainstreet 2
Mainstreet..
Mainstreet§

Regular Expressions 101

Regular Expression

Extraction