I am getting this:
[EMAIL PROTECTED]:~$ perl -e "'123456-123456' =~ /^ (\d{2}){3} (?: - (\d{2}){3}
)? $/x ? print 'yep' : print 'nope';"
Panic opt close in regex m/^ (\d{2}){3} (?: - (\d{2}){3} )? $/ at -e line 1.
Google does not turn much if anything about this error... Why is this
happening? If I remove ?: everything goes well but it defies the idea of the
exercise to get an optional 3 pair set of digits parsed as $4 $5 $6 in the
same pass as $1 $2 $3.
Thanks
Peter
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