Struct viz::prelude::http::headers::UserAgent

pub struct UserAgent(_);

User-Agent header, defined in RFC7231

The User-Agent header field contains information about the user agent originating the request, which is often used by servers to help identify the scope of reported interoperability problems, to work around or tailor responses to avoid particular user agent limitations, and for analytics regarding browser or operating system use. A user agent SHOULD send a User-Agent field in each request unless specifically configured not to do so.

ABNF

User-Agent = product *( RWS ( product / comment ) )
product         = token ["/" product-version]
product-version = token

Example values

• CERN-LineMode/2.15 libwww/2.17b3
• Bunnies

Notes

• The parser does not split the value

Example

use headers::UserAgent;

let ua = UserAgent::from_static("hyper/0.12.2");

Implementations

impl UserAgent

pub fn from_static(src: &'static str) -> UserAgent

Create a UserAgent from a static string.

Panic

Panics if the static string is not a legal header value.

pub fn as_str(&self) -> &str

View this UserAgent as a &str.

Trait Implementations

impl Clone for UserAgent

pub fn clone(&self) -> UserAgent

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UserAgent

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for UserAgent

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl FromStr for UserAgent

type Err = InvalidUserAgent

The associated error which can be returned from parsing.

pub fn from_str(src: &str) -> Result<UserAgent, <UserAgent as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for UserAgent

pub fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Header for UserAgent

pub fn name() -> &'static HeaderName

The name of this header.

pub fn decode<'i, I>(values: &mut I) -> Result<UserAgent, Error> where
    I: Iterator<Item = &'i HeaderValue>, 

Decode this type from an iterator of HeaderValues.

pub fn encode<E>(&self, values: &mut E) where
    E: Extend<HeaderValue>, 

Encode this type to a HeaderMap.

impl Ord for UserAgent

pub fn cmp(&self, other: &UserAgent) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<UserAgent> for UserAgent

pub fn eq(&self, other: &UserAgent) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &UserAgent) -> bool

This method tests for !=.

impl PartialOrd<UserAgent> for UserAgent

pub fn partial_cmp(&self, other: &UserAgent) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for UserAgent

impl StructuralEq for UserAgent

impl StructuralPartialEq for UserAgent