Appendix A. 汇总 ABNF (Collected ABNF)

在下面汇总的 ABNF 中, 列表规则按 [HTTP] 第 5.6.1 节展开.

Age = delta-seconds

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

Expires = HTTP-date

HTTP-date = `&lt;HTTP-date, see [HTTP], Section 5.6.7>`

OWS = `&lt;OWS, see [HTTP], Section 5.6.3>`

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

delta-seconds = 1*DIGIT

field-name = `&lt;field-name, see [HTTP], Section 5.1>`

quoted-string = `&lt;quoted-string, see [HTTP], Section 5.6.4>`

token = `&lt;token, see [HTTP], Section 5.6.2>`