Regular Expressions 101

Explanation
Pro

Group 1(\d+)

\d+a digit, repeated at least once

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 2(\d+)

\d+a digit, repeated at least once

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 3(\d+)

\d+a digit, repeated at least once

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

(\d+)\.(\d+)\.(\d+)

1.2.3
1.2.33
1.22.3
11.2.3

11.22.33
1.22.33
11.22.3
11.2.33

1.2.3
1.2.33
1.22.3
11.2.3

11.22.33
1.22.33
11.22.3
11.2.33