Enum ValidationError 

pub enum ValidationError {
    DuplicateVariant,
    DuplicateExtension,
    MultipleExtendedLanguageSubtags,
    PrimaryLanguageNotInRegistry,
    ExtendedLanguageNotInRegistry,
    ScriptNotInRegistry,
    RegionNotInRegistry,
    VariantNotInRegistry,
    WrongExtendedLanguagePrefix,
    WrongVariantPrefix,
}

Errors returned by the LanguageTag validation

Variants

DuplicateVariant

The same variant subtag is only allowed once in a tag.

DuplicateExtension

The same extension subtag is only allowed once in a tag before the private use part.

MultipleExtendedLanguageSubtags

only one extended language subtag is allowed

PrimaryLanguageNotInRegistry

The primary language is not in the IANA Language Subtag Registry

ExtendedLanguageNotInRegistry

The extended language is not in the IANA Language Subtag Registry

ScriptNotInRegistry

The script is not in the IANA Language Subtag Registry

RegionNotInRegistry

The region is not in the IANA Language Subtag Registry

VariantNotInRegistry

A variant is not in the IANA Language Subtag Registry

WrongExtendedLanguagePrefix

The primary language is not the expected extended language prefix from the IANA Language Subtag Registry

WrongVariantPrefix

The language tag has not one of the expected variant prefix from the IANA Language Subtag Registry

Trait Implementations

impl Clone for ValidationError

fn clone(&self) -> ValidationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidationError

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

Formats the value using the given formatter.

impl Display for ValidationError

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

Formats the value using the given formatter.

impl Error for ValidationError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl PartialEq for ValidationError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ValidationError

impl StructuralPartialEq for ValidationError