Enum Quantifier

pub enum Quantifier {
    ZeroOrMore,
    OneOrMore,
    ZeroOrMoreLazy,
    ZeroOrOne,
}

A quantifier, specifying the amount of times the leading PatternObject can occur.

Variants

ZeroOrMore

Allow zero or more occurrences, taking the longest matching sequence (*).

OneOrMore

Allow one or more occurrences, taking the longest matching sequence (+).

ZeroOrMoreLazy

Allow zero or more occurrences, taking the shortest matching sequence (-).

ZeroOrOne

Allow zero or one occurrences (?).

Trait Implementations

impl Clone for Quantifier

fn clone(&self) -> Quantifier

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Quantifier

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

Formats the value using the given formatter.

impl PartialEq for Quantifier

fn eq(&self, other: &Quantifier) -> 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 TryFrom<Token> for Quantifier

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: Token) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Quantifier

impl Eq for Quantifier

impl StructuralPartialEq for Quantifier