Regular Expressions 101

Negative Lookbehind(?<!\S)

\Sany non-whitespace character

Character Class[0-9]+

+matches at least one character from the set below:

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

Non-Capturing Group(?:[,.'][0-9]{3})?

?repeats the group contents below at most once:

Character Class[,.']

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Character Class[0-9]{3}

{3}matches exactly 3 characters from the set below:

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

Negative Lookahead(?!\S)

\Sany non-whitespace character

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?<!\S)[0-9]+(?:[,.'][0-9]{3})?(?!\S)

New

12.444 12,444 12'444 123.122 12.1234 12345 1234 12.12 12.1234567 12.242Text 12.242 Text Text12.242 Text12.242Text

12

12.444 12,444 12'444 123.122 12.1234 12345 1234 12.12 12.1234567 12.242Text 12.242 Text Text12.242 Text12.242Text

12