Regular Expressions 101

Pro

1st Alternative(\d)(?=9*.[\d:]{6}1\d*~\d*?\1(\d))

Group 1(\d)

\da digit

Positive Lookahead(?=9*.[\d:]{6}1\d*~\d*?\1(\d))

9*the literal 9 (57₁₀ / 71₈ / 39₁₆) , repeated any number of times

.any character (except for line terminators)

Character Class[\d:]{6}

{6}matches exactly 6 characters from the set below:

\da digit

:the literal : (58₁₀ / 72₈ / 3A₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\d*a digit, repeated any number of times

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

\d*?a digit, repeated any number of times

\1the text saved by group 1

Group 2(\d)

\da digit

2nd Alternative:.*

:the literal : (58₁₀ / 72₈ / 3A₁₆)

.*any character (except for line terminators), repeated any number of times

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

(\d)(?=9*.[\d:]{6}1\d*~\d*?\1(\d))|:.*

New

511810:011011~01234567890

$2

511810:011011~01234567890