regex101: PCRE (Legacy) Match Workspace

Pro

Positive Lookahead(?=((?=(.{9})(.*))((.)(?=((?!\5).)*\3$)){9})*$)

Group 1((?=(.{9})(.*))((.)(?=((?!\5).)*\3$)){9})*

*repeats the group contents below any number of times:

Positive Lookahead(?=(.{9})(.*))

Group 2(.{9})

.{9}any character (except for line terminators), repeated exactly 9 times

Group 3(.*)

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

Group 4((.)(?=((?!\5).)*\3$)){9}

{9}repeats the group contents below exactly 9 times:

Group 5(.)

.any character (except for line terminators)

Positive Lookahead(?=((?!\5).)*\3$)

Group 6((?!\5).)*

*repeats the group contents below any number of times:

Negative Lookahead(?!\5)

\5the text saved by group 5

.any character (except for line terminators)

\3the text saved by group 3

$end of line

Positive Lookahead(?=((?=((.)(?=(.{8}(?!\9).)*.{0,8}$).{8}){8}).){9})

Group 7((?=((.)(?=(.{8}(?!\9).)*.{0,8}$).{8}){8}).){9}

{9}repeats the group contents below exactly 9 times:

Positive Lookahead(?=((.)(?=(.{8}(?!\9).)*.{0,8}$).{8}){8})

Group 8((.)(?=(.{8}(?!\9).)*.{0,8}$).{8}){8}

{8}repeats the group contents below exactly 8 times:

Group 9(.)

.any character (except for line terminators)

Positive Lookahead(?=(.{8}(?!\9).)*.{0,8}$)

Group 10(.{8}(?!\9).)*

*repeats the group contents below any number of times:

.{8}any character (except for line terminators), repeated exactly 8 times

Negative Lookahead(?!\9)

\9the text saved by group 9

.any character (except for line terminators)

.{0,8}any character (except for line terminators), repeated between 0 and 8 times

$end of line

.{8}any character (except for line terminators), repeated exactly 8 times

.any character (except for line terminators)

Group 11(((?=(?=.{21}(.*))((.)(?=((?(?=(...)*$).{6})(?!\15).)*\13$)(?(?=(...)*$)(.{6}|.*))){9})...){3}.{18})+

+repeats the group contents below at least once:

Group 12((?=(?=.{21}(.*))((.)(?=((?(?=(...)*$).{6})(?!\15).)*\13$)(?(?=(...)*$)(.{6}|.*))){9})...){3}

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

Positive Lookahead(?=(?=.{21}(.*))((.)(?=((?(?=(...)*$).{6})(?!\15).)*\13$)(?(?=(...)*$)(.{6}|.*))){9})

Positive Lookahead(?=.{21}(.*))

.{21}any character (except for line terminators), repeated exactly 21 times

Group 13(.*)

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

Group 14((.)(?=((?(?=(...)*$).{6})(?!\15).)*\13$)(?(?=(...)*$)(.{6}|.*))){9}

{9}repeats the group contents below exactly 9 times:

Group 15(.)

.any character (except for line terminators)

Positive Lookahead(?=((?(?=(...)*$).{6})(?!\15).)*\13$)

Condition(?(?=(...)*$)(.{6}|.*))

.any character (except for line terminators)

.{18}any character (except for line terminators), repeated exactly 18 times

$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

25 tokens

Regular Expression

(?=((?=(.{9})(.*))((.)(?=((?!\5).)*\3$)){9})*$)(?=((?=((.)(?=(.{8}(?!\9).)*.{0,8}$).{8}){8}).){9})(((?=(?=.{21}(.*))((.)(?=((?(?=(...)*$).{6})(?!\15).)*\13$)(?(?=(...)*$)(.{6}|.*))){9})...){3}.{18})+$

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341572689257698143986413275862341957495726831173985426519234768734869512628157394

519284673725893461841657392396142758473516829168429537952378146234761985687935214
839541267182437659367158924715692843624973518573864192298316475941285736456729381
679543182158926473432817659567381294914256738283479561345792816896154327721638945
867539142324167859159482736275398684936241517481756923592873461743615298618924375
754219683861453729372968145516832497249675318983147256437581962695324871128796534
271459386435168927986273541518734269769828435342596178194387652657942813823615794
237541896186927345378652914743269158569178432812435679495386721924813567651794283
168759432459613278273165984821594763734982516596821347615437829387246195942378651
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123456789456789123564897231231564897789123456897231564312645978645978312978312645
145278369256389147364197258478512693589623471697431582712845936823956714931764825
243561789829317456657489132374192865916845327581673294162758943735924618498236571
243156789529847316687392145361475892714928653895263471152684937436719528978531264
498236571735924618162758943581673294916845327374192865657489132829317456243561789
978531264436719528152684937895263471714928653361475892687392145529847316243156789
342571689257698143986413275861342957495726831173985426519234768734869512628157394
345678192627319458892451673468793521713524986951862347179246835534187269286935714
341572689257698143986413275862341957495726831173985426519234768734869512628517394