Regular Expressions 101

Pro

^start of line

Non-Capturing Group(?:(?:0*1(?:11)*(?:0+|$))+|0+)

1st Alternative(?:0*1(?:11)*(?:0+|$))+

Non-Capturing Group(?:0*1(?:11)*(?:0+|$))+

+repeats the group contents below at least once:

0*the literal 0 (48₁₀ / 60₈ / 30₁₆) , repeated any number of times

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Non-Capturing Group(?:11)*

*repeats the group contents below any number of times:

11the literal text 11

Non-Capturing Group(?:0+|$)

1st Alternative0+

0+the literal 0 (48₁₀ / 60₈ / 30₁₆) , repeated at least once

2nd Alternative$

$end of line

2nd Alternative0+

0+the literal 0 (48₁₀ / 60₈ / 30₁₆) , repeated at least once

$end of line

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

^(?:(?:0*1(?:11)*(?:0+|$))+|0+)$

New

1001110111
10110111
1
11
111
1111
11111
01
0000
10101010
1110001010000
00000001

011101001110111110001111111
0111010011101111100011111111

1001110111
10110111
1
11
111
1111
11111
01
0000
10101010
1110001010000
00000001

011101001110111110001111111
0111010011101111100011111111