Appendix C. Imported ABNF

The following core rules are included by reference, as defined in Appendix B.1 of [RFC5234]:

• ALPHA (letters)
• CR (carriage return)
• CRLF (CR LF)
• CTL (controls)
• DIGIT (decimal 0-9)
• DQUOTE (double quote)
• HEXDIG (hexadecimal 0-9/A-F/a-f)
• HTAB (horizontal tab)
• LF (line feed)
• OCTET (any 8-bit sequence of data)
• SP (space)
• VCHAR (any visible US-ASCII character)

The following rules are defined in [RFC7230]:

BWS           = <BWS, see [RFC7230], Section 3.2.3>
OWS           = <OWS, see [RFC7230], Section 3.2.3>
RWS           = <RWS, see [RFC7230], Section 3.2.3>
URI-reference = <URI-reference, see [RFC7230], Section 2.7>
absolute-URI  = <absolute-URI, see [RFC7230], Section 2.7>
comment       = <comment, see [RFC7230], Section 3.2.6>
field-name    = <field-name, see [RFC7230], Section 3.2>
partial-URI   = <partial-URI, see [RFC7230], Section 2.7>
quoted-string = <quoted-string, see [RFC7230], Section 3.2.6>
token         = <token, see [RFC7230], Section 3.2.6>

The following rules are defined in other parts of this specification:

HTTP-date     = <HTTP-date, see Section 7.1.1.1>
content-coding = <content-coding, see Section 3.1.2.1>
language-range = <language-range, see Section 5.3.1>
language-tag  = <language-tag, see Section 3.1.3.1>
media-type    = <media-type, see Section 3.1.1.1>
method        = <method, see [RFC7230], Section 3.1.1>
product       = <product, see Section 5.5.3>
qvalue        = <qvalue, see Section 5.3.1>

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