regex101: French avenue check

Pro

Negative Lookbehind(?<!^([0-9]+([èe]?r)?e )?)

^start of line

Group 1([0-9]+([èe]?r)?e )?

?repeats the group contents below at most once:

Character Class[0-9]+

+matches at least one character from the set below:

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

Group 2([èe]?r)?

?repeats the group contents below at most once:

Character Class[èe]?

?matches at most one character from the set below:

èthe literal è (232₁₀ / 350₈ / E8₁₆) (case sensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

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

e the literal text e (case sensitive)

Avenuethe literal text Avenue (case sensitive)

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

26 tokens

Regular Expression

(?<!^([0-9]+([èe]?r)?e )?)Avenue

New

Avenue du Domaine-Patry (fr)
1ère Avenue du Domaine-Patry (fr)
1re Avenue du Domaine-Patry (fr)
1e Avenue du Domaine-Patry (fr)
1st Avenue du Domaine-Patry (en)
101th Avenue du Domaine-Patry (en)
Domaine-Patry Avenue (en)

Extraction

Avenue du Domaine-Patry (fr)
1ère Avenue du Domaine-Patry (fr)
1re Avenue du Domaine-Patry (fr)
1e Avenue du Domaine-Patry (fr)
1st Avenue du Domaine-Patry (en)
101th Avenue du Domaine-Patry (en)
Domaine-Patry Avenue (en)