elements = alternation *c-wsp
--- becomes ---
elements = alternation *WSP
rulelist = 1*( rule / (*c-wsp c-nl) )
--- becomes ---
rulelist = 1*( rule / (*WSP c-nl) )
repeat = 1*DIGIT / (*DIGIT "*" *DIGIT)
--- becomes ---
repeat = (*DIGIT "*" *DIGIT) / 1*DIGIT
CRLF = CR LF
--- becomes ---
CRLF = [CR] LF
HEXDIG = DIGIT / "A" / "B" / "C" / "D" / "E" / "F"
--- becomes ---
HEXDIG = DIGIT / %x41-46 / %x61-66 ; A-F / a-f