Module abnf_core::complete

ABNF Core Rules (RFC5234 B.1.)

Functions

• alpha
  ALPHA = %x41-5A / %x61-7A ; A-Z / a-z
• bit
  BIT = “0” / “1”
• char
  CHAR = %x01-7F ; any 7-bit US-ASCII character, excluding NUL
• cr
  Carriage return
• crlf
  Internet standard newline
• crlf_relaxed
  Newline, with and without “\r”.
• ctl
  CTL = %x00-1F / %x7F ; controls
• digit
  DIGIT = %x30-39 ; 0-9
• dquote
  Double Quote
• hexdig
  HEXDIG = DIGIT / “A” / “B” / “C” / “D” / “E” / “F”
• htab
  Horizontal tab
• lf
  Linefeed
• lwsp
  Use of this linear-white-space rule permits lines containing only white space that are no longer legal in mail headers and have caused interoperability problems in other contexts.
• octet
  OCTET = %x00-FF ; 8 bits of data
• sp
  SP = %x20
• vchar
  VCHAR = %x21-7E ; visible (printing) characters
• wsp
  WSP = SP / HTAB ; white space