Appendix A. Collected ABNF (ABNF 汇总)

在下面收集的 ABNF 中, 列表规则按照 [HTTP] 第 5.6.1 节进行扩展.

Age = delta-seconds

Cache-Control = [ cache-directive *( OWS "," OWS cache-directive ) ]

Expires = HTTP-date

HTTP-date = <HTTP-date, see [HTTP], Section 5.6.7>

OWS = <OWS, see [HTTP], Section 5.6.3>

cache-directive = token [ "=" ( token / quoted-string ) ]

delta-seconds = 1*DIGIT

field-name = <field-name, see [HTTP], Section 5.1>

quoted-string = <quoted-string, see [HTTP], Section 5.6.4>

token = <token, see [HTTP], Section 5.6.2>