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Pattern
(?=(?:.|(?<A>..))(?(A)|(?!)))
Input
1
2
34
1234
Options
Ignore Case
Ignore Whitespace
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Regex Info
Table
Context
Split List
3
matches found in about
7
milliseconds.
Show Permalink
Permalink
Index
Position
Matched String
${A}
0
0
empty string
12
1
1
empty string
23
2
2
empty string
34
1
2
34
empty string
12
1
23
2
34
34
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