Regular Expressions 101

Pro

Group 1(\d)

\da digit

Positive Lookahead(?=.*:.*~.*~.*?\1_(.{4}).*?(,))

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

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

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

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

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

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

\1the text saved by group 1

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group 2(.{4})

.{4}any character (except for line terminators), repeated exactly 4 times

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

Group 3(,)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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)(?=.*:.*~.*~.*?\1_(.{4}).*?(,))

New

#162:~;0101_1000;0110_1001;0111_1010;1000_1011;1001_1100;1010_1101;1011_1110;1100_1111,~0_00001_00012_00103_00114_01005_01016_01107_01118_10009_1001,

$3$2

#162:~;0101_1000;0110_1001;0111_1010;1000_1011;1001_1100;1010_1101;1011_1110;1100_1111,~0_00001_00012_00103_00114_01005_01016_01107_01118_10009_1001,