useself::sealed::AsCoding; use util::FlatCsv; use HeaderValue;
/// `Content-Encoding` header, defined in /// [RFC7231](http://tools.ietf.org/html/rfc7231#section-3.1.2.2) /// /// The `Content-Encoding` header field indicates what content codings /// have been applied to the representation, beyond those inherent in the /// media type, and thus what decoding mechanisms have to be applied in /// order to obtain data in the media type referenced by the Content-Type /// header field. Content-Encoding is primarily used to allow a /// representation's data to be compressed without losing the identity of /// its underlying media type. /// /// # ABNF /// /// ```text /// Content-Encoding = 1#content-coding /// ``` /// /// # Example values /// /// * `gzip` /// /// # Examples /// /// ``` /// # extern crate headers; /// use headers::ContentEncoding; /// /// let content_enc = ContentEncoding::gzip(); /// ``` #[derive(Clone, Debug)] pubstruct ContentEncoding(FlatCsv);
impl ContentEncoding { /// A constructor to easily create a `Content-Encoding: gzip` header. #[inline] pubfn gzip() -> ContentEncoding {
ContentEncoding(HeaderValue::from_static("gzip").into())
}
/// Check if this header contains a given "coding". /// /// This can be used with these argument types: /// /// - `&str` /// /// # Example /// /// ``` /// # extern crate headers; /// use headers::ContentEncoding; /// /// let content_enc = ContentEncoding::gzip(); /// /// assert!(content_enc.contains("gzip")); /// assert!(!content_enc.contains("br")); /// ``` pubfn contains(&self, coding: impl AsCoding) -> bool { let s = coding.as_coding(); self.0.iter().find(|&opt| opt == s).is_some()
}
}
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