Struct icu_properties::PropertyParserBorrowed

pub struct PropertyParserBorrowed<'a, T> { /* private fields */ }

A borrowed wrapper around property value name-to-enum data, returned by PropertyParser::as_borrowed(). More efficient to query.

Implementations

impl<T: TrieValue> PropertyParserBorrowed<'_, T>

pub fn get_strict_u16(&self, name: &str) -> Option<u16>

Get the property value as a u16, doing a strict search looking for names that match exactly

Example

use icu::properties::PropertyParser;
use icu::properties::props::GeneralCategory;

let lookup = PropertyParser::<GeneralCategory>::new();
assert_eq!(
    lookup.get_strict_u16("Lu"),
    Some(GeneralCategory::UppercaseLetter as u16)
);
assert_eq!(
    lookup.get_strict_u16("Uppercase_Letter"),
    Some(GeneralCategory::UppercaseLetter as u16)
);
// does not do loose matching
assert_eq!(lookup.get_strict_u16("UppercaseLetter"), None);

pub fn get_strict(&self, name: &str) -> Option<T>

Get the property value as a T, doing a strict search looking for names that match exactly

Example

use icu::properties::PropertyParser;
use icu::properties::props::GeneralCategory;

let lookup = PropertyParser::<GeneralCategory>::new();
assert_eq!(
    lookup.get_strict("Lu"),
    Some(GeneralCategory::UppercaseLetter)
);
assert_eq!(
    lookup.get_strict("Uppercase_Letter"),
    Some(GeneralCategory::UppercaseLetter)
);
// does not do loose matching
assert_eq!(lookup.get_strict("UppercaseLetter"), None);

pub fn get_loose_u16(&self, name: &str) -> Option<u16>

Get the property value as a u16, doing a loose search looking for names that match case-insensitively, ignoring ASCII hyphens, underscores, and whitespaces.

Example

use icu::properties::PropertyParser;
use icu::properties::props::GeneralCategory;

let lookup = PropertyParser::<GeneralCategory>::new();
assert_eq!(
    lookup.get_loose_u16("Lu"),
    Some(GeneralCategory::UppercaseLetter as u16)
);
assert_eq!(
    lookup.get_loose_u16("Uppercase_Letter"),
    Some(GeneralCategory::UppercaseLetter as u16)
);
// does do loose matching
assert_eq!(
    lookup.get_loose_u16("UppercaseLetter"),
    Some(GeneralCategory::UppercaseLetter as u16)
);

pub fn get_loose(&self, name: &str) -> Option<T>

Get the property value as a T, doing a loose search looking for names that match case-insensitively, ignoring ASCII hyphens, underscores, and whitespaces.

Example

use icu::properties::PropertyParser;
use icu::properties::props::GeneralCategory;

let lookup = PropertyParser::<GeneralCategory>::new();
assert_eq!(
    lookup.get_loose("Lu"),
    Some(GeneralCategory::UppercaseLetter)
);
assert_eq!(
    lookup.get_loose("Uppercase_Letter"),
    Some(GeneralCategory::UppercaseLetter)
);
// does do loose matching
assert_eq!(
    lookup.get_loose("UppercaseLetter"),
    Some(GeneralCategory::UppercaseLetter)
);

impl<T: TrieValue> PropertyParserBorrowed<'static, T>

pub fn new() -> Self

where T: ParseableEnumeratedProperty,

Creates a new instance of PropertyParserBorrowed<T> using compiled data.

✨ Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

pub const fn static_to_owned(self) -> PropertyParser<T>

Cheaply converts a [PropertyParserBorrowed<'static>] into a PropertyParser.

Note: Due to branching and indirection, using PropertyParser might inhibit some compile-time optimizations that are possible with PropertyParserBorrowed.

Trait Implementations

impl<T> Clone for PropertyParserBorrowed<'_, T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T: Debug> Debug for PropertyParserBorrowed<'a, T>

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

Formats the value using the given formatter.

impl<T: ParseableEnumeratedProperty> Default for PropertyParserBorrowed<'static, T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> Copy for PropertyParserBorrowed<'_, T>