Enum regex_syntax::unicode::ClassQuery

pub enum ClassQuery<'a> {
    OneLetter(char),
    Binary(&'a str),
    ByValue {
        property_name: &'a str,
        property_value: &'a str,
    },
}

A query for finding a character class defined by Unicode. This supports either use of a property name directly, or lookup by property value. The former generally refers to Binary properties (see UTS#44, Table 8), but as a special exception (see UTS#18, Section 1.2) both general categories (an enumeration) and scripts (a catalog) are supported as if each of their possible values were a binary property.

In all circumstances, property names and values are normalized and canonicalized. That is, GC == gc == GeneralCategory == general_category.

The lifetime 'a refers to the shorter of the lifetimes of property name and property value.

Variants

OneLetter(char)

Return a class corresponding to a Unicode binary property, named by a single letter.

Binary(&'a str)

Return a class corresponding to a Unicode binary property.

Note that, by special exception (see UTS#18, Section 1.2), both general category values and script values are permitted here as if they were a binary property.

ByValue

Return a class corresponding to all codepoints whose property (identified by property_name) corresponds to the given value (identified by property_value).

Fields

property_name: &'a str

A property name.

property_value: &'a str

A property value.

Implementations

impl<'a> ClassQuery<'a>

fn canonicalize(&self) -> Result<CanonicalClassQuery, Error>

fn canonical_binary(&self, name: &str) -> Result<CanonicalClassQuery, Error>

Trait Implementations

impl<'a> Debug for ClassQuery<'a>

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

Formats the value using the given formatter.