Enum ParseError

#[non_exhaustive]
pub enum ParseError {
    GeneralParseError(String),
    UnclosedOpenParen,
    InvalidRepeat,
    RecursionExceeded,
    TrailingBackslash,
    InvalidEscape(String),
    UnclosedUnicodeName,
    InvalidHex,
    InvalidCodepointValue,
    InvalidClass,
    UnknownFlag(String),
    NonUnicodeUnsupported,
    InvalidBackref,
    TargetNotRepeatable,
    InvalidGroupName,
    InvalidGroupNameBackref(String),
}

An error for the result of parsing a regex 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.

GeneralParseError(String)

General parsing error

UnclosedOpenParen

Opening parenthesis without closing parenthesis, e.g. (a|b

InvalidRepeat

Invalid repeat syntax

RecursionExceeded

Pattern too deeply nested

TrailingBackslash

Backslash without following character

InvalidEscape(String)

Invalid escape

UnclosedUnicodeName

Unicode escape not closed

InvalidHex

Invalid hex escape

InvalidCodepointValue

Invalid codepoint for hex or unicode escape

InvalidClass

Invalid character class

UnknownFlag(String)

Unknown group flag

NonUnicodeUnsupported

Disabling Unicode not supported

InvalidBackref

Invalid back reference

TargetNotRepeatable

Quantifier on lookaround or other zero-width assertion

InvalidGroupName

Couldn’t parse group name

InvalidGroupNameBackref(String)

Invalid group id in escape sequence

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> ParseError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.