Enum language_tags::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 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 Eq for ValidationError

impl Error for ValidationError

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl PartialEq<ValidationError> for ValidationError

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

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

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for ValidationError

impl StructuralPartialEq for ValidationError