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Code Golf

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    \$\begingroup\$ To anyone looking at this who doesn't know Perl 6. [ and ] denote a non-capturing group in a regex, which would be written as (?: and ) in Perl 5. To get a character class you have to place them in angle brackets <[ and ]>. \$\endgroup\$ Commented Feb 12, 2016 at 17:06
  • \$\begingroup\$ b2gills++, I didn't even think to mention the differences in Perl 6 regexes \$\endgroup\$ Commented Feb 12, 2016 at 18:30
  • \$\begingroup\$ I have had a downvote because someone didn't know that, so I always point it out. \$\endgroup\$ Commented Feb 12, 2016 at 18:33
  • \$\begingroup\$ Is there a PP&CG rule stopping you from posting the more elegant golf as its own answer? I think a slightly longer* version would be worthy. *I hereby decree that elegant golf idioms include not caring about (not counting) whitespace. \$\endgroup\$ Commented Feb 13, 2016 at 19:27