[perl #56194] Regex: (((??{1 + $^N}))) behaves differently in 5.10.0 than in blead

# New Ticket Created by  Bram 
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While testing [perl #27603] to see if the warning is gone I noticed this:


perl-5.10.0 -wle 'if (123 =~ /^(\d)(((??{1 + $^N})))+$/) { print  
"match"; } else { print "no match"; }'
match

perl-blead -wle 'if (123 =~ /^(\d)(((??{1 + $^N})))+$/) { print  
"match"; } else { print "no match"; }'
no match


And:

perl-5.10.0 -wle 'if (122 =~ /^(\d)(((??{1 + $^N})))+$/) { print  
"match"; } else { print "no match"; }'
no match

perl-blead -wle 'if (122 =~ /^(\d)(((??{1 + $^N})))+$/) { print  
"match"; } else { print "no match"; }'
match


Is this change of behaviour intended?


Kind regards,

Bram

• [perl #56194] Regex: (((??{1 + $^N}))) behaves differently in 5.10.0 than in blead by Bram