Enum Error

#[non_exhaustive]
pub enum Error {
    BareEscape,
    InternalError(Error),
    InvalidRegex(String, Error),
    NotImplemented(String),
    RangeAfterRange(char, char),
    ReversedRange(char, char),
    UnclosedAlternation,
    UnclosedClass,
}

An error that occurred during the processing of a pattern.

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.

BareEscape

A bare escape character at the end of the pattern.

InternalError(Error)

Something went really, really wrong.

InvalidRegex(String, Error)

The resulting regex was invalid.

NotImplemented(String)

Some known missing functionality.

RangeAfterRange(char, char)

An invalid combination of ranges ([a-b-c]) within a character class.

ReversedRange(char, char)

A reversed range within a character class.

UnclosedAlternation

An alternation that was not closed before the end of the pattern.

UnclosedClass

A character class that was not closed before the end of the pattern.

Trait Implementations

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, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

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.