Demo entry 6317566

host name

   

Submitted by anonymous on Nov 05, 2016 at 22:56
Language: EBNF. Code size: 699 Bytes.

lower-case = "a" | "b" | "c" | "d" | "e"
           | "f" | "g" | "h" | "i" | "j"
           | "k" | "l" | "m" | "n" | "o"
           | "p" | "q" | "r" | "s" | "t"
           | "u" | "v" | "w" | "x" | "y"
           | "z" ;
upper-case = "A" | "B" | "C" | "D" | "E"
           | "F" | "G" | "H" | "I" | "J"
           | "K" | "L" | "M" | "N" | "O"
           | "P" | "Q" | "R" | "S" | "T"
           | "U" | "V" | "W" | "X" | "Y"
           | "Z" ;

letter = lower-case | upper-case ;
digit  = "0" | "1" | "2" | "3" | "4"
       | "5" | "6" | "7" | "8" | "9" ;

non-dash = letter | digit ;
alphabet = non-dash | "-" ;

NAME = letter , [ { alphabet } , non-dash ] ;
HOST = NAME , [ { "." , NAME } ] ;

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