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function(e,t){"use strict";var n="(?:[a-z0-9]{5,8}|\\d[a-z0-9]{3})",i="[0-9a-wy-z]",r=i+"(?:-[a-z0-9]{2,8})+",s="x(?:-[a-z0-9]{1,8})+",a=RegExp("^(?:"+("(?:[a-z]{2,3}(?:-[a-z]{3}(?:-[a-z]{3}){0,2})?|[a-z]{4}|[a-z]{5,8})(?:-[a-z]{4})?(?:-(?:[a-z]{2}|\\d{3}))?(?:-"+n+")*(?:-"+r+")*(?:-"+s)+")?|"+s+"|(?:(?:en-GB-oed|i-(?:ami|bnn|default|enochian|hak|klingon|lux|mingo|navajo|pwn|tao|tay|tsu)|sgn-(?:BE-FR|BE-NL|CH-DE))|(?:art-lojban|cel-gaulish|no-bok|no-nyn|zh-(?:guoyu|hakka|min|min-nan|xiang))))$","i"),o=RegExp("^(?!x).*?-("+n+")-(?:\\w{4,8}-(?!x-))*\\1\\b","i"),l=RegExp("^(?!x).*?-("+i+")-(?:\\w+-(?!x-))*\\1\\b","i"),u=RegExp("-"+r,"ig");t.expBCP47Syntax=a,t.expVariantDupes=o,t.expSingletonDupes=l,t.expExtSequences=u}