附录 B. 导入的 ABNF (Appendix B. Imported ABNF)

以下核心规则按引用包含, 定义见 [RFC5234] 附录 B.1: ALPHA (字母), CR (回车), CRLF (CR LF), CTL (控制字符), DIGIT (十进制 0-9), DQUOTE (双引号), HEXDIG (十六进制 0-9/A-F/a-f), LF (换行), OCTET (任意 8 位数据序列), SP (空格) 与 VCHAR (任意可见 US-ASCII 字符).

以下规则定义于 [RFC7230]:

BWS = <BWS, see [RFC7230], Section 3.2>
OWS = <OWS, see [RFC7230], Section 3.2>
quoted-string = <quoted-string, see [RFC7230], Section 3.2>
token = <token, see [RFC7230], Section 3.2>

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