Enum ClassSetItem

pub enum ClassSetItem {
    Empty(Span),
    Literal(Literal),
    Range(ClassSetRange),
    Ascii(ClassAscii),
    Unicode(ClassUnicode),
    Perl(ClassPerl),
    Bracketed(Box<ClassBracketed>),
    Union(ClassSetUnion),
}

A single component of a character class set.

Variants

Empty(Span)

An empty item.

Note that a bracketed character class cannot contain a single empty item. Empty items can appear when using one of the binary operators. For example, [&&] is the intersection of two empty classes.

Literal(Literal)

A single literal.

Range(ClassSetRange)

A range between two literals.

Ascii(ClassAscii)

An ASCII character class, e.g., [:alnum:] or [:punct:].

Unicode(ClassUnicode)

A Unicode character class, e.g., \pL or \p{Greek}.

Perl(ClassPerl)

A perl character class, e.g., \d or \W.

Bracketed(Box<ClassBracketed>)

A bracketed character class set, which may contain zero or more character ranges and/or zero or more nested classes. e.g., [a-zA-Z\pL].

Union(ClassSetUnion)

A union of items.

Implementations

impl ClassSetItem

pub fn span(&self) -> &Span

Return the span of this character class set item.

Trait Implementations

impl Clone for ClassSetItem

fn clone(&self) -> ClassSetItem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ClassSetItem

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

Formats the value using the given formatter.

impl PartialEq for ClassSetItem

fn eq(&self, other: &ClassSetItem) -> 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 ClassSetItem

impl StructuralPartialEq for ClassSetItem