Enum Error

#[non_exhaustive]
pub enum Error {
    BareEscape,
    InvalidRegex(String, String),
    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.

InvalidRegex(String, String)

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, fmt: &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.