Enum LexErrorMsg

#[non_exhaustive]
pub enum LexErrorMsg {
    GroupNonCapturing,
    GroupLookahead,
    GroupLookaheadNeg,
    GroupLookbehind,
    GroupLookbehindNeg,
    GroupNamedCapture,
    GroupPcreBackreference,
    GroupComment,
    GroupAtomic,
    GroupConditional,
    GroupBranchReset,
    GroupSubroutineCall,
    GroupOther,
    Backslash,
    BackslashU4,
    BackslashX2,
    BackslashUnicode,
    BackslashProperty,
    BackslashGK,
    UnclosedString,
    LeadingZero,
    InvalidCodePoint,
}

An error message for a token that is invalid in a pomsky expression.

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.

GroupNonCapturing

GroupLookahead

GroupLookaheadNeg

GroupLookbehind

GroupLookbehindNeg

GroupNamedCapture

GroupPcreBackreference

GroupComment

GroupAtomic

GroupConditional

GroupBranchReset

GroupSubroutineCall

GroupOther

Backslash

BackslashU4

BackslashX2

BackslashUnicode

BackslashProperty

BackslashGK

UnclosedString

LeadingZero

InvalidCodePoint

Implementations

impl LexErrorMsg

pub fn get_help(&self, slice: &str) -> Option<String>

Returns a help message for fixing this error, if available.

The slice argument must be the same string that you tried to parse.

Trait Implementations

impl Clone for LexErrorMsg

fn clone(&self) -> LexErrorMsg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LexErrorMsg

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

Formats the value using the given formatter.

impl Display for LexErrorMsg

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

Formats the value using the given formatter.

impl Error for LexErrorMsg

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 LexErrorMsg

fn eq(&self, other: &LexErrorMsg) -> 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 Copy for LexErrorMsg

impl Eq for LexErrorMsg

impl StructuralPartialEq for LexErrorMsg