Enum HeaderValue 

pub enum HeaderValue<'m> {
    Empty,
    Text(&'m str),
    TextList(TextList<'m>),
    Address(AddressList<'m>),
    DateTime(DateTime),
    ContentType(ContentType<'m>),
    Received(Received<'m>),
}

A parsed header value. The variant follows the HeaderForm the parser used for the name (see crate::MessageParser::header). Values compare by content.

Variants

Empty

No parsable value: a value that does not parse in its form (an empty address list, date or Content-Type included), or a field parsed with HeaderForm::Ignore.

Text(&'m str)

The trimmed field (HeaderForm::Raw) or its decoded text (HeaderForm::Text); an empty string for a field that is present but blank.

TextList(TextList<'m>)

Message identifiers (HeaderForm::MessageIds) or phrases (HeaderForm::CommaList); always a list, even with one item.

Address(AddressList<'m>)

Mailboxes and groups (HeaderForm::Addresses).

DateTime(DateTime)

A date (HeaderForm::Date).

ContentType(ContentType<'m>)

A Content-Type or Content-Disposition value (HeaderForm::ContentType).

Received(Received<'m>)

A Received trace field (HeaderForm::Received).

Implementations

impl<'m> HeaderValue<'m>

pub fn is_empty(&self) -> bool

Whether the value is HeaderValue::Empty.

pub fn as_text(&self) -> Option<&'m str>

The text, or the last item of a text list (the identifier of a Message-ID field, for instance).

pub fn as_text_list(&self) -> Option<TextList<'m>>

The text list.

pub fn as_address(&self) -> Option<AddressList<'m>>

The address list.

pub fn as_datetime(&self) -> Option<DateTime>

The date.

pub fn as_content_type(&self) -> Option<ContentType<'m>>

The Content-Type or Content-Disposition value.

pub fn as_received(&self) -> Option<Received<'m>>

The Received trace field.

Trait Implementations

impl<'m> Clone for HeaderValue<'m>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'m> Copy for HeaderValue<'m>

impl<'m> Debug for HeaderValue<'m>

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

Formats the value using the given formatter.

impl<'m> Default for HeaderValue<'m>

fn default() -> Self

Returns the “default value” for a type.

impl<'m> Eq for HeaderValue<'m>

impl<'m> PartialEq for HeaderValue<'m>

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

Equality operator ==.

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

Inequality operator !=.

impl<'m> StructuralPartialEq for HeaderValue<'m>