From catalog/rfc4647-langrange.abnf rule: language-range

Definition

language-range = (1*8ALPHA *("-" 1*8alphanum)) / "*"

alphanum = ALPHA / DIGIT

Info

Rulename
language-range
Dependencies
ALPHA, DIGIT, alphanum, language-range
Used Builtins
ALPHA, DIGIT

Alphabet

Translations

Railroad Diagram

language-range ALPHA ALPHA ALPHA ALPHA ALPHA ALPHA ALPHA ALPHA - alphanum alphanum alphanum alphanum alphanum alphanum alphanum alphanum *

Swift Regular Expression

[A-Za-z](|[A-Za-z](|[A-Za-z](|[A-Za-z](|[A-Za-z]))))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]|([A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](|[A-Za-z])-[0-9A-Za-z])))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z])(-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z])))))|([A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](|[A-Za-z])-[0-9A-Za-z])))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z])(-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*(|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z]))))))|([A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]|([A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](|[A-Za-z])-[0-9A-Za-z])))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z])(-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*[0-9A-Za-z])(-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*[0-9A-Za-z])*(|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z])))))|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*(|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z])))))))|\*

POSIX Extended Regular Expression

[A-Za-z](|[A-Za-z](|[A-Za-z](|[A-Za-z](|[A-Za-z]))))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]|([A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](|[A-Za-z])-[0-9A-Za-z])))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z])(-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z])))))|([A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](|[A-Za-z])-[0-9A-Za-z])))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z])(-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*(|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z]))))))|([A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]|([A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](-[0-9A-Za-z]|[A-Za-z](|[A-Za-z])-[0-9A-Za-z])))|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z]|[A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z][A-Za-z]-[0-9A-Za-z])(-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*[0-9A-Za-z])(-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*[0-9A-Za-z])*(|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z])))))|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z](-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*[0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z][0-9A-Za-z])*(|-[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](-[0-9A-Za-z]|[0-9A-Za-z](|[0-9A-Za-z])-[0-9A-Za-z]))))*(|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z](|[0-9A-Za-z])))))))|\*