Regular Expressions 101

Pro

Negative Lookbehind(?<!\S)

\Sany non-whitespace character

\d+a digit, repeated at least once

\ban ASCII word boundary

Negative Lookahead(?![^\S\n]*[,\d])

Negated Character Class[^\S\n]*

*matches any number of characters outside the set below:

\Sany non-whitespace character

\na line-feed (newline) character (ASCII 10)

Character Class[,\d]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\da digit

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

(?<!\S)\d+\b(?![^\S\n]*[,\d])

1
4 500,5

12%

1,63%

568768,74832 days in between

34 cars in a row

1
4 500,5

12%

1,63%

568768,74832 days in between

34 cars in a row