Struct icu::properties::CodePointSetDataBorrowed

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pub struct CodePointSetDataBorrowed<'a> { /* private fields */ }
Expand description

A borrowed wrapper around code point set data, returned by CodePointSetData::as_borrowed(). More efficient to query.

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impl CodePointSetDataBorrowed<'static>

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pub const fn static_to_owned(self) -> CodePointSetData

Cheaply converts a [CodePointSetDataBorrowed<'static>] into a CodePointSetData.

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

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impl<'a> CodePointSetDataBorrowed<'a>

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pub fn contains(self, ch: char) -> bool

Check if the set contains a character

use icu::properties::CodePointSetData;
use icu::properties::props::Alphabetic;

let alphabetic = CodePointSetData::new::<Alphabetic>();

assert!(!alphabetic.contains('3'));
assert!(!alphabetic.contains('੩'));  // U+0A69 GURMUKHI DIGIT THREE
assert!(alphabetic.contains('A'));
assert!(alphabetic.contains('Ä'));  // U+00C4 LATIN CAPITAL LETTER A WITH DIAERESIS
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pub fn contains32(self, ch: u32) -> bool

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pub fn iter_ranges(self) -> impl Iterator<Item = RangeInclusive<u32>> + 'a

included in the CodePointSetData

Ranges are returned as RangeInclusive, which is inclusive of its end bound value. An end-inclusive behavior matches the ICU4C/J behavior of ranges, ex: UnicodeSet::contains(UChar32 start, UChar32 end).

§Example
use icu::properties::props::Alphabetic;
use icu::properties::CodePointSetData;

let alphabetic = CodePointSetData::new::<Alphabetic>();
let mut ranges = alphabetic.iter_ranges();

assert_eq!(Some(0x0041..=0x005A), ranges.next()); // 'A'..'Z'
assert_eq!(Some(0x0061..=0x007A), ranges.next()); // 'a'..'z'
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pub fn iter_ranges_complemented( self, ) -> impl Iterator<Item = RangeInclusive<u32>> + 'a

not included in the CodePointSetData

Ranges are returned as RangeInclusive, which is inclusive of its end bound value. An end-inclusive behavior matches the ICU4C/J behavior of ranges, ex: UnicodeSet::contains(UChar32 start, UChar32 end).

§Example
use icu::properties::props::Alphabetic;
use icu::properties::CodePointSetData;

let alphabetic = CodePointSetData::new::<Alphabetic>();
let mut ranges = alphabetic.iter_ranges();

assert_eq!(Some(0x0041..=0x005A), ranges.next()); // 'A'..'Z'
assert_eq!(Some(0x0061..=0x007A), ranges.next()); // 'a'..'z'

Trait Implementations§

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impl<'a> Clone for CodePointSetDataBorrowed<'a>

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fn clone(&self) -> CodePointSetDataBorrowed<'a>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> Debug for CodePointSetDataBorrowed<'a>

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

Formats the value using the given formatter. Read more
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impl<'a> Copy for CodePointSetDataBorrowed<'a>

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T
where T: Send + Sync,