Struct mime::Value

pub struct Value<'a> { /* fields omitted */ }

A parameter value section of a Mime.

Except for the charset parameter, parameters are compared case sensitive

Methods

impl<'a> Value<'a>

pub fn as_str_repr(&self) -> &'a str

Returns the underlying representation.

The underlying representation differs from the content, as it can contain quotes surrounding the content and quoted-pairs, even if non of them are necessary to represent the content.

For example the representation r#""a\"\ b""# corresponds to the content r#""a" b"#. Another semantically equivalent (i.e. with the same content) representation is r#""a\" b""

Example

let mime = r#"text/plain; param="abc def""#.parse::<mime::Mime>().unwrap();
let param = mime.get_param("param").unwrap();
assert_eq!(param.as_str_repr(), r#""abc def""#);

pub fn to_content(&self) -> Cow<'a, str>

Returns the content of this instance.

It differs to the representation in that it will remove the quotation marks from the quoted string and will "unquote" quoted pairs.

If the underlying representation is a quoted string containing quoted-pairs Cow::Owned is returned.

If the underlying representation is a quoted-string without quoted-pairs Cow::Borrowed is returned as normal str slicing can be used to strip the surrounding double quoted.

If the underlying representation is not a quoted-string Cow::Borrowed is returned, too.

Example

use std::borrow::Cow;

let raw_mime = r#"text/plain; p1="char is \""; p2="simple"; p3=simple2"#;
let mime = raw_mime.parse::<mime::Mime>().unwrap();

let param1 = mime.get_param("p1").unwrap();
let expected: Cow<'static, str> = Cow::Owned(r#"char is ""#.into());
assert_eq!(param1.to_content(), expected);

let param2 = mime.get_param("p2").unwrap();
assert_eq!(param2.to_content(), Cow::Borrowed("simple"));

let param3 = mime.get_param("p3").unwrap();
assert_eq!(param3.to_content(), Cow::Borrowed("simple2"));

Trait Implementations

impl<'a> Clone for Value<'a>

fn clone(&self) -> Value<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for Value<'a>

impl<'a> Eq for Value<'a>

impl<'a> PartialOrd for Value<'a>

fn partial_cmp(&self, other: &Value<'a>) -> Option<Ordering>

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

fn lt(&self, other: &Value<'a>) -> bool

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

fn le(&self, other: &Value<'a>) -> bool

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

fn gt(&self, other: &Value<'a>) -> bool

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

fn ge(&self, other: &Value<'a>) -> bool

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

impl<'a> Ord for Value<'a>

fn cmp(&self, other: &Value<'a>) -> 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.

impl<'a> Hash for Value<'a>

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

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<'a, 'b> PartialEq<Value<'b>> for Value<'a>

fn eq(&self, other: &Value<'b>) -> bool

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

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

This method tests for !=.

impl<'a> PartialEq<str> for Value<'a>

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

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

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

This method tests for !=.

impl<'a, 'b> PartialEq<&'b str> for Value<'a>

fn eq(&self, other: &&'b str) -> bool

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

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

This method tests for !=.

impl<'a, 'b> PartialEq<Value<'b>> for &'a str

fn eq(&self, other: &Value<'b>) -> bool

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

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

This method tests for !=.

impl<'a> PartialEq<Value<'a>> for str

fn eq(&self, other: &Value<'a>) -> bool

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

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

This method tests for !=.

impl<'a> From<Value<'a>> for Cow<'a, str>

fn from(value: Value<'a>) -> Self

Performs the conversion.

impl<'a> Debug for Value<'a>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a> Display for Value<'a>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.