Regular Expressions 101

Explanation

Pro

1st Alternative(tasker 2\.5\.[0-9][0-2])

Group 1(tasker 2\.5\.[0-9][0-2])

tasker 2the literal text tasker 2 (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-9]

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

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

2nd Alternative(tasker 2\.5\.[0-9])

Group 2(tasker 2\.5\.[0-9])

tasker 2the literal text tasker 2 (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-9]

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

3rd Alternative(tasker 2\.[0-4]\.\d+)

Group 3(tasker 2\.[0-4]\.\d+)

tasker 2the literal text tasker 2 (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-4]

0-4one character from 0 (48₁₀) to 4 (52₁₀)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

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

(tasker 2\.5\.[0-9][0-2])|(tasker 2\.5\.[0-9])|(tasker 2\.[0-4]\.\d+)

New

tasker 2.5.9 tasker 2.5.11 tasker 2.3.2

tasker 2.5.9 tasker 2.5.11 tasker 2.3.2