Enum HeaderName 

#[non_exhaustive]
pub enum HeaderName<'x> {
    Subject,
    From,
    To,
    Cc,
    Date,
    Bcc,
    ReplyTo,
    Sender,
    Comments,
    InReplyTo,
    Keywords,
    Received,
    MessageId,
    References,
    ReturnPath,
    MimeVersion,
    ContentDescription,
    ContentId,
    ContentLanguage,
    ContentLocation,
    ContentTransferEncoding,
    ContentType,
    ContentDisposition,
    ResentTo,
    ResentFrom,
    ResentBcc,
    ResentCc,
    ResentSender,
    ResentDate,
    ResentMessageId,
    ListArchive,
    ListHelp,
    ListId,
    ListOwner,
    ListPost,
    ListSubscribe,
    ListUnsubscribe,
    DkimSignature,
    ArcAuthenticationResults,
    ArcMessageSignature,
    ArcSeal,
    Dkim2Signature,
    MessageInstance,
    AcceptLanguage,
    AlternateRecipient,
    ArchivedAt,
    AuthenticationResults,
    AutoSubmitted,
    Autoforwarded,
    Autosubmitted,
    ContentAlternative,
    ContentDuration,
    ContentFeatures,
    ContentMd5,
    ContentTranslationType,
    Conversion,
    ConversionWithLoss,
    DlExpansionHistory,
    DeferredDelivery,
    DeliveryDate,
    DiscardedX400IpmsExtensions,
    DiscardedX400MtsExtensions,
    DiscloseRecipients,
    DispositionNotificationOptions,
    DispositionNotificationTo,
    DowngradedFinalRecipient,
    DowngradedInReplyTo,
    DowngradedMessageId,
    DowngradedOriginalRecipient,
    DowngradedReferences,
    Encoding,
    Expires,
    GenerateDeliveryReport,
    HpOuter,
    Importance,
    IncompleteCopy,
    Language,
    LatestDeliveryTime,
    ListUnsubscribePost,
    MessageContext,
    MessageType,
    MmhsExemptedAddress,
    MmhsExtendedAuthorisationInfo,
    MmhsSubjectIndicatorCodes,
    MmhsHandlingInstructions,
    MmhsMessageInstructions,
    MmhsCodressMessageIndicator,
    MmhsOriginatorReference,
    MmhsPrimaryPrecedence,
    MmhsCopyPrecedence,
    MmhsMessageType,
    MmhsOtherRecipientsIndicatorTo,
    MmhsOtherRecipientsIndicatorCc,
    MmhsAcp127MessageIdentifier,
    MmhsOriginatorPlad,
    MtPriority,
    Organization,
    OriginalEncodedInformationTypes,
    OriginalFrom,
    OriginalMessageId,
    OriginalRecipient,
    OriginatorReturnAddress,
    OriginalSubject,
    PicsLabel,
    PreventNonDeliveryReport,
    Priority,
    ReceivedSpf,
    ReplyBy,
    RequireRecipientValidSince,
    Sensitivity,
    Solicitation,
    Supersedes,
    TlsReportDomain,
    TlsReportSubmitter,
    TlsRequired,
    VbrInfo,
    X400ContentIdentifier,
    X400ContentReturn,
    X400ContentType,
    X400MtsIdentifier,
    X400Originator,
    X400Received,
    X400Recipients,
    X400Trace,
    ApparentlyTo,
    Author,
    CfblAddress,
    CfblFeedbackId,
    DeliveredTo,
    EdiintFeatures,
    EesstVersion,
    ErrorsTo,
    Face,
    FormSub,
    JabberId,
    MmhsAuthorizingUsers,
    Privicon,
    SioLabel,
    SioLabelHistory,
    WrongRecipient,
    XOriginalTo,
    ReturnReceiptTo,
    XSpamStatus,
    XSpamScore,
    XSpamFlag,
    XSpamResult,
    XPriority,
    XMSMailPriority,
    XMailer,
    UserAgent,
    XMimeOLE,
    XOriginatingIp,
    XForwardedTo,
    XForwardedFor,
    XAutoResponseSuppress,
    Precedence,
    ThreadIndex,
    ThreadTopic,
    FeedbackId,
    XUniversallyUniqueIdentifier,
    XVirusScanned,
    XMailFrom,
    XMailmanVersion,
    MessageIdHash,
    XMessageIdHash,
    XMailmanRuleMisses,
    XSpamLevel,
    XReceived,
    XGmMessageState,
    XGoogleDkimSignature,
    XMailboxLine,
    XGmGg,
    XOriginalFrom,
    XGoogleSmtpSource,
    XMsTnefCorrelator,
    XMsHasAttach,
    XMeProxy,
    XMeProxyCause,
    XMeSender,
    XGmFeatures,
    XMsExchangeTransportCrossTenantHeadersStamped,
    XMsPublicTrafficType,
    XOriginatorOrg,
    XMsExchangeCrossTenantNetworkMessageId,
    XMsExchangeCrossTenantAuthSource,
    XMsExchangeCrossTenantAuthAs,
    XMsExchangeCrossTenantOriginalArrivalTime,
    XMicrosoftAntispam,
    XMsExchangeCrossTenantId,
    XMsTrafficTypeDiagnostic,
    XMicrosoftAntispamMessageInfo,
    XMsOffice365FilteringCorrelationId,
    XMsExchangeCrossTenantFromEntityHeader,
    XMsExchangeAntiSpamMessageDataChunkCount,
    XMsExchangeAntiSpamMessageData0,
    XMsExchangeSenderADCheck,
    XForefrontAntispamReport,
    XMsExchangeAntiSpamRelay,
    XMsExchangeCrossTenantMailboxType,
    XMsExchangeCrossTenantUserPrincipalName,
    XGitHubReason,
    XGitHubRecipientAddress,
    XGitHubRecipient,
    Destinations,
    XGitHubSender,
    XGitHubNotifyPlatform,
    XThreadId,
    XSesOutgoing,
    XProofpointVirusVersion,
    XGitHubAssignees,
    XGitHubLabels,
    BimiSelector,
    XStripeEid,
    XAttachmentId,
    XTestIDTracker,
    XIetfIDTracker,
    XPmMessageId,
    XAntiAbuse,
    Autocrypt,
    XComplaintsTo,
    XProofpointOrigGuid,
    XProofpointGuid,
    XGitHubIssueState,
    XMsReactions,
    XPmMtaPool,
    XPmRcpt,
    XProofpointSpamDetailsEnc,
    XPmMessageOptions,
    XSenderId,
    XGitHubPullRequestStatus,
    XAuthorityAnalysis,
    XForwardedEncrypted,
    XMsExchangeAntiSpamExternalHopMessageDataChunkCount,
    XMsExchangeAntiSpamExternalHopMessageData0,
    XMsExchangeCrossTenantRmsPersistedConsumerOrg,
    XExchangeRoutingPolicyChecked,
    XMsExchangeCrossTenantOriginalAttributedTenantConnectingIp,
    XMsExchangeMessageSentRepresentingType,
    XMsExchangeTransportCrossTenantHeadersStripped,
    XMsOffice365FilteringCorrelationIdPrvs,
    XMicrosoftAntispamMessageInfoOriginal,
    XMsExchangeAuthenticationResults,
    XForefrontAntispamReportUntrusted,
    XMsExchangeAtpMessageProperties,
    XMicrosoftAntispamUntrusted,
    XMsExchangeAntiSpamMessageData1,
    XMissiveId,
    XIadbIpReverse,
    XReportAbuse,
    DkimFilter,
    XMeReceived,
    XProofpointSpamDetails,
    Other(Cow<'x, str>),
}

A header field name: one of the known names, or any other name with its original spelling.

Names compare ASCII case-insensitively, so Other("x-custom") equals Other("X-Custom"), and an Other spelled like a known name equals, hashes and orders as that name. Known names are parsed into their variant by HeaderName::parse, by the From conversions (which keep any other string as written in Other) and by the message parser, and keep their canonical spelling in HeaderName::as_str; crate::Header::raw_name gives the spelling used in a message.

use mail_parser::HeaderName;

assert_eq!(HeaderName::parse("content-type"), Some(HeaderName::ContentType));
assert_eq!(HeaderName::ContentType.as_str(), "Content-Type");
let custom = HeaderName::parse("X-Custom").expect("valid name");
assert!(custom.is_other());
assert_eq!(custom, HeaderName::from("x-custom"));

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Subject

Subject.

From

From.

To

To.

Cc

Cc.

Date

Date.

Bcc

Bcc.

ReplyTo

Reply-To.

Sender

Sender.

Comments

Comments.

InReplyTo

In-Reply-To.

Keywords

Keywords.

Received

Received.

MessageId

Message-ID.

References

References.

ReturnPath

Return-Path.

MimeVersion

MIME-Version.

ContentDescription

Content-Description.

ContentId

Content-ID.

ContentLanguage

Content-Language.

ContentLocation

Content-Location.

ContentTransferEncoding

Content-Transfer-Encoding.

ContentType

Content-Type.

ContentDisposition

Content-Disposition.

ResentTo

Resent-To.

ResentFrom

Resent-From.

ResentBcc

Resent-Bcc.

ResentCc

Resent-Cc.

ResentSender

Resent-Sender.

ResentDate

Resent-Date.

ResentMessageId

Resent-Message-ID.

ListArchive

List-Archive.

ListHelp

List-Help.

ListId

List-ID.

ListOwner

List-Owner.

ListPost

List-Post.

ListSubscribe

List-Subscribe.

ListUnsubscribe

List-Unsubscribe.

DkimSignature

DKIM-Signature.

ArcAuthenticationResults

ARC-Authentication-Results.

ArcMessageSignature

ARC-Message-Signature.

ArcSeal

ARC-Seal.

Dkim2Signature

DKIM2-Signature.

MessageInstance

Message-Instance.

AcceptLanguage

Accept-Language.

AlternateRecipient

Alternate-Recipient.

ArchivedAt

Archived-At.

AuthenticationResults

Authentication-Results.

AutoSubmitted

Auto-Submitted.

Autoforwarded

Autoforwarded.

Autosubmitted

Autosubmitted.

ContentAlternative

Content-Alternative.

ContentDuration

Content-Duration.

ContentFeatures

Content-features.

ContentMd5

Content-MD5.

ContentTranslationType

Content-Translation-Type.

Conversion

Conversion.

ConversionWithLoss

Conversion-With-Loss.

DlExpansionHistory

DL-Expansion-History.

DeferredDelivery

Deferred-Delivery.

DeliveryDate

Delivery-Date.

DiscardedX400IpmsExtensions

Discarded-X400-IPMS-Extensions.

DiscardedX400MtsExtensions

Discarded-X400-MTS-Extensions.

DiscloseRecipients

Disclose-Recipients.

DispositionNotificationOptions

Disposition-Notification-Options.

DispositionNotificationTo

Disposition-Notification-To.

DowngradedFinalRecipient

Downgraded-Final-Recipient.

DowngradedInReplyTo

Downgraded-In-Reply-To.

DowngradedMessageId

Downgraded-Message-Id.

DowngradedOriginalRecipient

Downgraded-Original-Recipient.

DowngradedReferences

Downgraded-References.

Encoding

Encoding.

Expires

Expires.

GenerateDeliveryReport

Generate-Delivery-Report.

HpOuter

HP-Outer.

Importance

Importance.

IncompleteCopy

Incomplete-Copy.

Language

Language.

LatestDeliveryTime

Latest-Delivery-Time.

ListUnsubscribePost

List-Unsubscribe-Post.

MessageContext

Message-Context.

MessageType

Message-Type.

MmhsExemptedAddress

MMHS-Exempted-Address.

MmhsExtendedAuthorisationInfo

MMHS-Extended-Authorisation-Info.

MmhsSubjectIndicatorCodes

MMHS-Subject-Indicator-Codes.

MmhsHandlingInstructions

MMHS-Handling-Instructions.

MmhsMessageInstructions

MMHS-Message-Instructions.

MmhsCodressMessageIndicator

MMHS-Codress-Message-Indicator.

MmhsOriginatorReference

MMHS-Originator-Reference.

MmhsPrimaryPrecedence

MMHS-Primary-Precedence.

MmhsCopyPrecedence

MMHS-Copy-Precedence.

MmhsMessageType

MMHS-Message-Type.

MmhsOtherRecipientsIndicatorTo

MMHS-Other-Recipients-Indicator-To.

MmhsOtherRecipientsIndicatorCc

MMHS-Other-Recipients-Indicator-CC.

MmhsAcp127MessageIdentifier

MMHS-Acp127-Message-Identifier.

MmhsOriginatorPlad

MMHS-Originator-PLAD.

MtPriority

MT-Priority.

Organization

Organization.

OriginalEncodedInformationTypes

Original-Encoded-Information-Types.

OriginalFrom

Original-From.

OriginalMessageId

Original-Message-ID.

OriginalRecipient

Original-Recipient.

OriginatorReturnAddress

Originator-Return-Address.

OriginalSubject

Original-Subject.

PicsLabel

PICS-Label.

PreventNonDeliveryReport

Prevent-NonDelivery-Report.

Priority

Priority.

ReceivedSpf

Received-SPF.

ReplyBy

Reply-By.

RequireRecipientValidSince

Require-Recipient-Valid-Since.

Sensitivity

Sensitivity.

Solicitation

Solicitation.

Supersedes

Supersedes.

TlsReportDomain

TLS-Report-Domain.

TlsReportSubmitter

TLS-Report-Submitter.

TlsRequired

TLS-Required.

VbrInfo

VBR-Info.

X400ContentIdentifier

X400-Content-Identifier.

X400ContentReturn

X400-Content-Return.

X400ContentType

X400-Content-Type.

X400MtsIdentifier

X400-MTS-Identifier.

X400Originator

X400-Originator.

X400Received

X400-Received.

X400Recipients

X400-Recipients.

X400Trace

X400-Trace.

ApparentlyTo

Apparently-To.

Author

Author.

CfblAddress

CFBL-Address.

CfblFeedbackId

CFBL-Feedback-ID.

DeliveredTo

Delivered-To.

EdiintFeatures

EDIINT-Features.

EesstVersion

Eesst-Version.

ErrorsTo

Errors-To.

Face

Face.

FormSub

Form-Sub.

JabberId

Jabber-ID.

MmhsAuthorizingUsers

MMHS-Authorizing-Users.

Privicon

Privicon.

SioLabel

SIO-Label.

SioLabelHistory

SIO-Label-History.

WrongRecipient

Wrong-Recipient.

XOriginalTo

X-Original-To.

ReturnReceiptTo

Return-Receipt-To.

XSpamStatus

X-Spam-Status.

XSpamScore

X-Spam-Score.

XSpamFlag

X-Spam-Flag.

XSpamResult

X-Spam-Result.

XPriority

X-Priority.

XMSMailPriority

X-MSMail-Priority.

XMailer

X-Mailer.

UserAgent

User-Agent.

XMimeOLE

X-MimeOLE.

XOriginatingIp

X-Originating-IP.

XForwardedTo

X-Forwarded-To.

XForwardedFor

X-Forwarded-For.

XAutoResponseSuppress

X-Auto-Response-Suppress.

Precedence

Precedence.

ThreadIndex

Thread-Index.

ThreadTopic

Thread-Topic.

FeedbackId

Feedback-ID.

XUniversallyUniqueIdentifier

X-Universally-Unique-Identifier.

XVirusScanned

X-Virus-Scanned.

XMailFrom

X-MailFrom.

XMailmanVersion

X-Mailman-Version.

MessageIdHash

Message-ID-Hash.

XMessageIdHash

X-Message-ID-Hash.

XMailmanRuleMisses

X-Mailman-Rule-Misses.

XSpamLevel

X-Spam-Level.

XReceived

X-Received.

XGmMessageState

X-Gm-Message-State.

XGoogleDkimSignature

X-Google-DKIM-Signature.

XMailboxLine

X-Mailbox-Line.

XGmGg

X-Gm-Gg.

XOriginalFrom

X-Original-From.

XGoogleSmtpSource

X-Google-Smtp-Source.

XMsTnefCorrelator

X-MS-TNEF-Correlator.

XMsHasAttach

X-MS-Has-Attach.

XMeProxy

X-ME-Proxy.

XMeProxyCause

X-ME-Proxy-Cause.

XMeSender

X-ME-Sender.

XGmFeatures

X-Gm-Features.

XMsExchangeTransportCrossTenantHeadersStamped

X-MS-Exchange-Transport-CrossTenantHeadersStamped.

XMsPublicTrafficType

X-MS-PublicTrafficType.

XOriginatorOrg

X-OriginatorOrg.

XMsExchangeCrossTenantNetworkMessageId

X-MS-Exchange-CrossTenant-Network-Message-Id.

XMsExchangeCrossTenantAuthSource

X-MS-Exchange-CrossTenant-AuthSource.

XMsExchangeCrossTenantAuthAs

X-MS-Exchange-CrossTenant-AuthAs.

XMsExchangeCrossTenantOriginalArrivalTime

X-MS-Exchange-CrossTenant-OriginalArrivalTime.

XMicrosoftAntispam

X-Microsoft-Antispam.

XMsExchangeCrossTenantId

X-MS-Exchange-CrossTenant-Id.

XMsTrafficTypeDiagnostic

X-MS-TrafficTypeDiagnostic.

XMicrosoftAntispamMessageInfo

X-Microsoft-Antispam-Message-Info.

XMsOffice365FilteringCorrelationId

X-MS-Office365-Filtering-Correlation-Id.

XMsExchangeCrossTenantFromEntityHeader

X-MS-Exchange-CrossTenant-FromEntityHeader.

XMsExchangeAntiSpamMessageDataChunkCount

X-MS-Exchange-AntiSpam-MessageData-ChunkCount.

XMsExchangeAntiSpamMessageData0

X-MS-Exchange-AntiSpam-MessageData-0.

XMsExchangeSenderADCheck

X-MS-Exchange-SenderADCheck.

XForefrontAntispamReport

X-Forefront-Antispam-Report.

XMsExchangeAntiSpamRelay

X-MS-Exchange-AntiSpam-Relay.

XMsExchangeCrossTenantMailboxType

X-MS-Exchange-CrossTenant-MailboxType.

XMsExchangeCrossTenantUserPrincipalName

X-MS-Exchange-CrossTenant-UserPrincipalName.

XGitHubReason

X-GitHub-Reason.

XGitHubRecipientAddress

X-GitHub-Recipient-Address.

XGitHubRecipient

X-GitHub-Recipient.

Destinations

Destinations.

XGitHubSender

X-GitHub-Sender.

XGitHubNotifyPlatform

X-GitHub-Notify-Platform.

XThreadId

X-ThreadId.

XSesOutgoing

X-SES-Outgoing.

XProofpointVirusVersion

X-Proofpoint-Virus-Version.

XGitHubAssignees

X-GitHub-Assignees.

XGitHubLabels

X-GitHub-Labels.

BimiSelector

BIMI-Selector.

XStripeEid

X-Stripe-EID.

XAttachmentId

X-Attachment-Id.

XTestIDTracker

X-Test-IDTracker.

XIetfIDTracker

X-IETF-IDTracker.

XPmMessageId

X-Pm-Message-ID.

XAntiAbuse

X-AntiAbuse.

Autocrypt

Autocrypt.

XComplaintsTo

X-Complaints-To.

XProofpointOrigGuid

X-Proofpoint-ORIG-GUID.

XProofpointGuid

X-Proofpoint-GUID.

XGitHubIssueState

X-GitHub-IssueState.

XMsReactions

X-MS-Reactions.

XPmMtaPool

X-Pm-MTA-Pool.

XPmRcpt

X-Pm-RCPT.

XProofpointSpamDetailsEnc

X-Proofpoint-Spam-Details-Enc.

XPmMessageOptions

X-Pm-Message-Options.

XSenderId

X-Sender-ID.

XGitHubPullRequestStatus

X-GitHub-PullRequestStatus.

XAuthorityAnalysis

X-Authority-Analysis.

XForwardedEncrypted

X-Forwarded-Encrypted.

XMsExchangeAntiSpamExternalHopMessageDataChunkCount

X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount.

XMsExchangeAntiSpamExternalHopMessageData0

X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0.

XMsExchangeCrossTenantRmsPersistedConsumerOrg

X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg.

XExchangeRoutingPolicyChecked

X-Exchange-RoutingPolicyChecked.

XMsExchangeCrossTenantOriginalAttributedTenantConnectingIp

X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp.

XMsExchangeMessageSentRepresentingType

X-MS-Exchange-MessageSentRepresentingType.

XMsExchangeTransportCrossTenantHeadersStripped

X-MS-Exchange-Transport-CrossTenantHeadersStripped.

XMsOffice365FilteringCorrelationIdPrvs

X-MS-Office365-Filtering-Correlation-Id-Prvs.

XMicrosoftAntispamMessageInfoOriginal

X-Microsoft-Antispam-Message-Info-Original.

XMsExchangeAuthenticationResults

X-MS-Exchange-Authentication-Results.

XForefrontAntispamReportUntrusted

X-Forefront-Antispam-Report-Untrusted.

XMsExchangeAtpMessageProperties

X-MS-Exchange-AtpMessageProperties.

XMicrosoftAntispamUntrusted

X-Microsoft-Antispam-Untrusted.

XMsExchangeAntiSpamMessageData1

X-MS-Exchange-AntiSpam-MessageData-1.

XMissiveId

X-Missive-Id.

XIadbIpReverse

X-IADB-IP-Reverse.

XReportAbuse

X-Report-Abuse.

DkimFilter

DKIM-Filter.

XMeReceived

X-ME-Received.

XProofpointSpamDetails

X-Proofpoint-Spam-Details.

Other(Cow<'x, str>)

Any other name, with its original spelling.

Implementations

impl<'x> HeaderName<'x>

pub fn parse(name: impl Into<Cow<'x, str>>) -> Option<HeaderName<'x>>

Parses a header name. Returns None for an empty name or one with a byte that RFC 5322 does not allow in a field name (anything but printable US-ASCII other than the colon). Never allocates.

pub fn key(&self) -> HeaderKey<'_>

Resolves the name once, for code that looks the same name up in many parts or messages: crate::Headers::all_key and crate::Headers::get_key then skip the name lookup that crate::Headers::all and crate::Headers::get do on every call.

use mail_parser::{HeaderName, MessageParser};

let message = MessageParser::new()
    .parse(b"X-Tag: a\r\nX-Tag: b\r\n\r\nbody")
    .expect("message");
let name = HeaderName::from("x-tag");
let key = name.key();
assert_eq!(message.headers().all_key(key).count(), 2);
assert_eq!(
    message.headers().get_key(key).map(|header| header.raw_value()),
    Some(&b" b\r\n"[..])
);

pub fn into_owned(self) -> HeaderName<'static>

Converts the name into one that owns its spelling.

pub fn as_static_str(&self) -> &'static str

Canonical spelling of a known name; empty for other names.

pub fn as_str(&self) -> &str

Canonical spelling of a known name, or the original spelling of any other name.

pub fn is_other(&self) -> bool

Whether this is not one of the known names.

pub fn is_mime_header(&self) -> bool

Whether this is one of the seven Content-* MIME header fields.

pub fn is_content_header(&self) -> bool

Whether this is any Content-* header field, known or not: the fields that describe a part’s content and do not survive replacing it.

pub fn is_structured(&self) -> bool

Whether the default parser yields a structured value for this name.

Trait Implementations

impl<'x> Clone for HeaderName<'x>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'x> Debug for HeaderName<'x>

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

Formats the value using the given formatter.

impl Display for HeaderName<'_>

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

Formats the value using the given formatter.

impl Eq for HeaderName<'_>

impl<'x> From<&'x str> for HeaderName<'x>

fn from(value: &'x str) -> Self

Converts to this type from the input type.

impl<'x> From<&HeaderName<'x>> for HeaderName<'x>

fn from(value: &HeaderName<'x>) -> Self

Converts to this type from the input type.

impl<'x> From<Cow<'x, str>> for HeaderName<'x>

fn from(value: Cow<'x, str>) -> Self

Converts to this type from the input type.

impl From<HeaderName<'_>> for String

fn from(name: HeaderName<'_>) -> Self

Converts to this type from the input type.

impl<'x> From<HeaderName<'x>> for Cow<'x, str>

fn from(name: HeaderName<'x>) -> Self

Converts to this type from the input type.

impl From<String> for HeaderName<'_>

fn from(value: String) -> Self

Converts to this type from the input type.

impl Hash for HeaderName<'_>

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for HeaderName<'_>

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for HeaderName<'_>

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for HeaderName<'_>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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