Regular Expressions 101

Pro

Negative Lookbehind(?<!\S)

\Sany non-whitespace character

\d+a digit, repeated at least once

Non-Capturing Group(?:\s+\d+)*

*repeats the group contents below any number of times:

\s+any whitespace character, repeated at least once

\d+a digit, repeated at least once

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

(?<!\S)\d+(?:\s+\d+)*(?!\S)

12 11231390 good123e41 12he12o1 1391389 dajue1290a 12331 12-10 1.2 test12.0why 12+12 12*6 2d1139013 09`29 83919 1

12 11231390 good123e41 12he12o1 1391389 dajue1290a 12331 12-10 1.2 test12.0why 12+12 12*6 2d1139013 09`29 83919 1