regex101: .NET 10.0 (C#) Match Workspace

^start of line

Group 1((?=[6-9](?<1>){6}|)(?=[3-59](?<1>){3}|)(?=[258](?<1>){2}|)(?=[147](?<1>)|).)+

+repeats the group contents below at least once:

Positive Lookahead(?=[6-9](?<1>){6}|)

1st Alternative[6-9](?<1>){6}

Character Class[6-9]

6-9one character from 6 (54₁₀) to 9 (57₁₀)

Group 1(?<1>){6}

{6}repeats the group contents below exactly 6 times:

does not consume characters

2nd Alternative — matches an empty string

Positive Lookahead(?=[3-59](?<1>){3}|)

1st Alternative[3-59](?<1>){3}

Character Class[3-59]

3-5one character from 3 (51₁₀) to 5 (53₁₀)

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

Group 1(?<1>){3}

{3}repeats the group contents below exactly 3 times:

does not consume characters

2nd Alternative — matches an empty string

Positive Lookahead(?=[258](?<1>){2}|)

1st Alternative[258](?<1>){2}

Character Class[258]

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

8the literal 8 (56₁₀ / 70₈ / 38₁₆)

Group 1(?<1>){2}

{2}repeats the group contents below exactly 2 times:

does not consume characters

2nd Alternative — matches an empty string

Positive Lookahead(?=[147](?<1>)|)

1st Alternative[147](?<1>)

Character Class[147]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

4the literal 4 (52₁₀ / 64₈ / 34₁₆)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

Group 1(?<1>) — does not consume characters

2nd Alternative — matches an empty string

.any Unicode character (except for line terminators)

$end of line

Negative Lookbehind(?<!(?=(?<-1>.)+(?(1)^))\11(?=((?<=(?=(?=((?<-2>)(?=.*$((?<-2>\2)(?<3>)|){9}).)+(?(2)^))(?>(?<-1>)(.)(?<=((?<5-1>\1)|){9}^.*))*(?<2>.(?<=((?<5>)(?<-1>\1)|){9}((?<-1>\1){10}|())((?<2-1>)(?<-3>\3)|){9}(?<-9>(?<-1>))?(?<1>){10}(?<-3>)(?<-1>)(?<5>^.*)))+$(?!\9)(?(3)^)(?<=(?<-5>(?=(?<1>(?=.*$\5)|.)).)*){10}(\12)?()|){9}^.*).)*)(?<-13>){2}\13(?<-13>)^(?<-14>(?(14)|((?<2>(.)?))){10}(?<-15>))+(?<15>)(.)*|^1)

1st Alternative(?=(?<-1>.)+(?(1)^))\11(?=((?<=(?=(?=((?<-2>)(?=.*$((?<-2>\2)(?<3>)|){9}).)+(?(2)^))(?>(?<-1>)(.)(?<=((?<5-1>\1)|){9}^.*))*(?<2>.(?<=((?<5>)(?<-1>\1)|){9}((?<-1>\1){10}|())((?<2-1>)(?<-3>\3)|){9}(?<-9>(?<-1>))?(?<1>){10}(?<-3>)(?<-1>)(?<5>^.*)))+$(?!\9)(?(3)^)(?<=(?<-5>(?=(?<1>(?=.*$\5)|.)).)*){10}(\12)?()|){9}^.*).)*)(?<-13>){2}\13(?<-13>)^(?<-14>(?(14)|((?<2>(.)?))){10}(?<-15>))+(?<15>)(.)*

Positive Lookahead(?=(?<-1>.)+(?(1)^))

Balancing Group(?<-1>.)+

+repeats the group contents below at least once:

.any Unicode character (except for line terminators)

Condition(?(1)^)

Uses the first branch if group 1 matched

If the condition is true, match this branch:^

^start of line

\11the text saved by group 11

Positive Lookahead(?=((?<=(?=(?=((?<-2>)(?=.*$((?<-2>\2)(?<3>)|){9}).)+(?(2)^))(?>(?<-1>)(.)(?<=((?<5-1>\1)|){9}^.*))*(?<2>.(?<=((?<5>)(?<-1>\1)|){9}((?<-1>\1){10}|())((?<2-1>)(?<-3>\3)|){9}(?<-9>(?<-1>))?(?<1>){10}(?<-3>)(?<-1>)(?<5>^.*)))+$(?!\9)(?(3)^)(?<=(?<-5>(?=(?<1>(?=.*$\5)|.)).)*){10}(\12)?()|){9}^.*).)*)

Group 2((?<=(?=(?=((?<-2>)(?=.*$((?<-2>\2)(?<3>)|){9}).)+(?(2)^))(?>(?<-1>)(.)(?<=((?<5-1>\1)|){9}^.*))*(?<2>.(?<=((?<5>)(?<-1>\1)|){9}((?<-1>\1){10}|())((?<2-1>)(?<-3>\3)|){9}(?<-9>(?<-1>))?(?<1>){10}(?<-3>)(?<-1>)(?<5>^.*)))+$(?!\9)(?(3)^)(?<=(?<-5>(?=(?<1>(?=.*$\5)|.)).)*){10}(\12)?()|){9}^.*).)*

*repeats the group contents below any number of times:

Positive Lookbehind(?<=(?=(?=((?<-2>)(?=.*$((?<-2>\2)(?<3>)|){9}).)+(?(2)^))(?>(?<-1>)(.)(?<=((?<5-1>\1)|){9}^.*))*(?<2>.(?<=((?<5>)(?<-1>\1)|){9}((?<-1>\1){10}|())((?<2-1>)(?<-3>\3)|){9}(?<-9>(?<-1>))?(?<1>){10}(?<-3>)(?<-1>)(?<5>^.*)))+$(?!\9)(?(3)^)(?<=(?<-5>(?=(?<1>(?=.*$\5)|.)).)*){10}(\12)?()|){9}^.*)

Positive Lookahead(?=(?=((?<-2>)(?=.*$((?<-2>\2)(?<3>)|){9}).)+(?(2)^))(?>(?<-1>)(.)(?<=((?<5-1>\1)|){9}^.*))*(?<2>.(?<=((?<5>)(?<-1>\1)|){9}((?<-1>\1){10}|())((?<2-1>)(?<-3>\3)|){9}(?<-9>(?<-1>))?(?<1>){10}(?<-3>)(?<-1>)(?<5>^.*)))+$(?!\9)(?(3)^)(?<=(?<-5>(?=(?<1>(?=.*$\5)|.)).)*){10}(\12)?()|){9}

^start of line

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

.any Unicode character (except for line terminators)

Balancing Group(?<-13>){2}

\13the text saved by group 13

Balancing Group(?<-13>) — does not consume characters

^start of line

Balancing Group(?<-14>(?(14)|((?<2>(.)?))){10}(?<-15>))+

Group 15(?<15>) — does not consume characters

Group 16(.)*

2nd Alternative^1

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

25 tokens

Regular Expression

^((?=[6-9](?<1>){6}|)(?=[3-59](?<1>){3}|)(?=[258](?<1>){2}|)(?=[147](?<1>)|).)+$(?<!(?=(?<-1>.)+(?(1)^))\11(?=((?<=(?=(?=((?<-2>)(?=.*$((?<-2>\2)(?<3>)|){9}).)+(?(2)^))(?>(?<-1>)(.)(?<=((?<5-1>\1)|){9}^.*))*(?<2>.(?<=((?<5>)(?<-1>\1)|){9}((?<-1>\1){10}|())((?<2-1>)(?<-3>\3)|){9}(?<-9>(?<-1>))?(?<1>){10}(?<-3>)(?<-1>)(?<5>^.*)))+$(?!\9)(?(3)^)(?<=(?<-5>(?=(?<1>(?=.*$\5)|.)).)*){10}(\12)?()|){9}^.*).)*)(?<-13>){2}\13(?<-13>)^(?<-14>(?(14)|((?<2>(.)?))){10}(?<-15>))+(?<15>)(.)*|^1)

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Regular Expressions 101

Regular Expression

Extraction