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 Eq for Error

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 Display for Error

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

Formats the value using the given formatter.

impl Debug 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>

Deprecated since 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.