Enum pomsky_syntax::exprs::GroupItem

pub enum GroupItem {
    Char(char),
    Range {
        first: char,
        last: char,
    },
    Named {
        name: GroupName,
        negative: bool,
    },
}

One item in a character class.

Variants

Char(char)

A Unicode code point. It can be denoted in quotes (e.g. 'a') or in hexadecimal notation (U+201).

Some non-printable ASCII characters are also parsed to a GroupItem::Char: [n], [t], [r], [a], [e] and [f].

Range

Fields

first: char

last: char

A range of Unicode code points. It is denoted as A-B, where A and B are Unicode code points, allowing the same notation as for GroupItem::Char. Both A and B are included in the range.

Named

Fields

name: GroupName

negative: bool

A named character class, i.e. a shorthand or a Unicode category/script/block. Shorthands are [w], [s], [d], [v], [h] and [R].

Some of them (w, d, s and Unicode) can be negated.

Trait Implementations

impl Clone for GroupItem

fn clone(&self) -> GroupItem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GroupItem

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

Formats the value using the given formatter.

impl Hash for GroupItem

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<GroupItem> for GroupItem

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for GroupItem

impl Eq for GroupItem

impl StructuralEq for GroupItem

impl StructuralPartialEq for GroupItem