Enum language_tags::Error

pub enum Error {
    DuplicateExtension,
    EmptyExtension,
    EmptyPrivateUse,
    ForbiddenChar,
    InvalidSubtag,
    InvalidLanguage,
    SubtagTooLong,
    TooManyExtlangs,
}

Defines an Error type for langtags.

Errors occur mainly during parsing of language tags.

Variants

DuplicateExtension

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

EmptyExtension

If an extension subtag is present, it must not be empty.

EmptyPrivateUse

If the x subtag is present, it must not be empty.

ForbiddenChar

The langtag contains a char that is not A-Z, a-z, 0-9 or the dash.

InvalidSubtag

A subtag fails to parse, it does not match any other subtags.

InvalidLanguage

The given language subtag is invalid.

SubtagTooLong

A subtag may be eight characters in length at maximum.

TooManyExtlangs

At maximum three extlangs are allowed, but zero to one extlangs are preferred.

Trait Implementations

impl PartialEq<Error> for Error

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

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

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

This method tests for !=.

impl Eq for Error

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

This method is soft-deprecated.

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

Deprecating in 1.33.0

: replaced by Error::source, which can support downcasting

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

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

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