Enum ToRegexError

pub enum ToRegexError {
    BalancedUsed,
    CaptureRefUsed,
    FrontierUsed,
}

Available on crate feature to-regex only.

The error type for errors that can occur during conversion to regular expressions. See try_to_regex for more information.

Variants

BalancedUsed

The input pattern includes a balanced pattern (eg. %b{}) which cannot be represented by regular expressions.

CaptureRefUsed

The input pattern includes a capture backreference (eg. %1), but allow_capture_refs was set to false.

FrontierUsed

The input pattern includes a frontier pattern (eg. %f[a-z]), but allow_lookaround was set to false.

Trait Implementations

impl Debug for ToRegexError

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

Formats the value using the given formatter.

impl Display for ToRegexError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ToRegexError

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.

impl PartialEq for ToRegexError

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ToRegexError

impl StructuralPartialEq for ToRegexError