Enum ParseErrorKind 

#[non_exhaustive]
pub enum ParseErrorKind {
    EmptySelector,
    DanglingCombinator,
    EndOfInput,
    InvalidPosition,
    UnexpectedToken(String),
    ExpectedName(String),
    UnsupportedPseudo(String),
    InvalidAttributeSelector(String),
    Other(String),
}

What is wrong with a selector that is not valid CSS.

This is a translation of the selectors/cssparser error kinds into wording of this crate’s own, not a re-export of them: their variants are internal to those crates and several are unreachable from a selector parse. Anything with no closer match — including a variant a future version of either crate adds — becomes ParseErrorKind::Other, so a dependency bump cannot turn into a panic.

Payloads that echo the selector (a token, a pseudo-class name) are sanitized: control characters are replaced, and the text is elided past 40 bytes (MAX_TOKEN_ECHO), so a message stays printable however long the selector is.

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.

EmptySelector

The selector, or one group of a selector list, has nothing in it.

DanglingCombinator

A combinator with nothing after it, as in div > .

EndOfInput

The selector ends in the middle of a construct.

InvalidPosition

A construct in a position that does not allow it: a pseudo-element inside :is(), a combinator after one, a :has() nested in another :has().

UnexpectedToken(String)

A token that cannot appear where it does, as CSS source text.

ExpectedName(String)

A name was required — after . or :: — and something else was found. Holds the offending token as CSS source text.

UnsupportedPseudo(String)

A pseudo-class or pseudo-element outside the supported set (which is every pseudo-element: XPath 1.0 has no notion of one). Holds the name, without its leading colons.

InvalidAttributeSelector(String)

Something that cannot appear inside [...], as CSS source text: a malformed attribute name, operator, or value.

Other(String)

A parse failure with no more specific kind here, already worded as a phrase to be printed after “…selector x: “.

Trait Implementations

impl Clone for ParseErrorKind

fn clone(&self) -> ParseErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseErrorKind

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

Formats the value using the given formatter.

impl Display for ParseErrorKind

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

Formats the value using the given formatter.

impl Eq for ParseErrorKind

impl PartialEq for ParseErrorKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParseErrorKind