I don't know

I think you might be thinking of regex recursive pattern recursion limit

Research

A place to look ( perldeltas )


pod\perl5100delta:backtracking into a recursed pattern, whereas in PCRE the recursion is
pod\perl5101delta:=item C<Deep recursion on subroutine "%s">
pod\perl5101delta:Tests for the interaction of regex recursion and threads.
pod\perl5120delta:F<t/op/reg_email_thr.t> tests the interaction of regex recursion and threads.
pod\perl5120delta:C<Deep recursion on subroutine "%s">
pod\perl5160delta:Missing aliases added, a deep recursion error fixed and various
pod\perl5180delta:Lexical variables are now sane as regards scope, recursion and closure
pod\perl5180delta:lexical variables.  Formerly under recursion all calls would share the same
pod\perl5181delta:Deep recursion warnings no longer crash lexical subroutines. [RT #118521]
pod\perl5200delta:Deep recursion warnings no longer crash lexical subroutines. [RT #118521]
pod\perl5200delta:recursion, the filehandle was losing the "$fh" part of the name.  This has been
pod\perl5202delta:recursion when dumping deep data structures.
pod\perl5220delta:Do not check recursion on optional dependencies.
pod\perl5220delta:recursion when dumping deep data structures.
pod\perl5220delta:a separate state for each recursion level (the number of times the
pod\perl5230delta:prevents infinite recursion when the now fatal error also causes
pod\perl581delta:recursion, though.
pod\perl586delta:C<goto &> is now more robust - bugs in deep recursion and chained C<goto &>
pod\perl589delta:Perl no longer segfaults (due to infinite internal recursion) if the locale's

Another place http://perl5.git.perl.org/perl.git?a=search&h=HEAD&st=grep&s=recursion -> http://perl5.git.perl.org/perl.git/blob?f=t/op/recurse.t ( # check ok for recursion depth > 65536)

And another http://perl5.git.perl.org/perl.git?a=search&h=HEAD&st=free&s=recursion

And another site:http://www.nntp.perl.org/group/perl.perl5.porters/ maximum recursion

And another https://rt.perl.org/Public/Search/Simple.html?q=+recursion

site:metacpan.org maximum recursion , site:search.cpan.org maximum recursion

maximum recursion -> Recursion is of unlimited depth.

So in summary, there is a regex recursive pattern limit, configurable

In reply to Re: No recursion depth limit? by Anonymous Monk
in thread No recursion depth limit? by Yary

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