Regular Expressions 101

Explanation
Pro

Non-Capturing Group(?:\p{Sc} ?)?

?repeats the group contents below at most once:

\p{Sc}any currency sign

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

Group 1([\d,.]+)

Character Class[\d,.]+

+matches at least one character from the set below:

\da digit

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?: ?\p{Sc})?

?repeats the group contents below at most once:

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

\p{Sc}any currency sign

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

(?:\p{Sc} ?)?([\d,.]+)(?: ?\p{Sc})?

New

14.22 €
14.22€
€14.22
€ 14.22
14.22 £
14.22£
£14.22
£ 14.22
14.22 $
14.22$
$14.22
$ 14.22

14.22 €
14.22€
€14.22
€ 14.22
14.22 £
14.22£
£14.22
£ 14.22
14.22 $
14.22$
$14.22
$ 14.22