xmlns:b = "http://businesscard.org"

NL   = \n|\r|\r\n
Char = <CHAR>&~<NL>
Text = <Char>+(" "<Char>+)*
SP   = " "

cards : [cardlist cl] = <b:cards> [cardlist cl] </>

cardlist : =
         : [card c] [cardlist cl] = [card c] [cardlist cl]

card  : [name n] [title t] [email e] [phone p] [logo l] = 
    <b:card> [name n] [title t] [email e] [phone p] [logo l] </>

name  : "N" [SP] [Text n] [NL] = <b:name> [Text n] </>

title : "T" [SP] [Text t] [NL] = <b:title> [Text t] </>

email : "E" [SP] [Text e] [NL] = <b:email> [Text e] </>

phone : =
      : "P" [SP] [Text p] [NL] = <b:phone> [Text p] </>

logo  : =
      : "L" [SP] [URI l] [NL] = <b:logo uri=[URI l]></>