regex101: JavaScript Match Workspace

Negative Lookbehind(?<![\p{L}\p{N}_])

Character Class[\p{L}\p{N}_]

\p{L}any Unicode letter

\p{N}a decimal digit, letterlike number, or other numeric character

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

genthe literal text gen (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

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

Search reference

Regular Expression

(?<![\p{L}\p{N}_])gen

New

To achieve this, I am using the regular expression /\bsea/gmi, which works perfectly with English characters. However, it fails to produce the desired results when applied to Swedish characters, like 'ä', 'å', and 'ö'. For example, if the search word is 'gen', the postfix 'gen' in the word 'vägen' is incorrectly highlighted. It seems that the regular expression treats these characters as special characters or something similar. I even tried adding unicode modifier u but that didt't help either.

gen
gena
agen
ägen
genä

Regular Expressions 101

Regular Expression

Extraction