icu_casemap

Struct CaseMapper

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pub struct CaseMapper { /* private fields */ }
Expand description

A struct with the ability to convert characters and strings to uppercase or lowercase, or fold them to a normalized form for case-insensitive comparison.

Most methods for this type live on CaseMapperBorrowed, which you can obtain via CaseMapper::new() or CaseMapper::as_borrowed().

§Examples

use icu::casemap::CaseMapper;
use icu::locale::langid;

let cm = CaseMapper::new();

assert_eq!(
    cm.uppercase_to_string("hello world", &langid!("und")),
    "HELLO WORLD"
);
assert_eq!(
    cm.lowercase_to_string("Γειά σου Κόσμε", &langid!("und")),
    "γειά σου κόσμε"
);

Implementations§

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impl CaseMapper

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pub const fn new() -> CaseMapperBorrowed<'static>

Creates a CaseMapperBorrowed using compiled data.

Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

§Examples
use icu::casemap::CaseMapper;
use icu::locale::langid;

let cm = CaseMapper::new();

assert_eq!(
    cm.uppercase_to_string("hello world", &langid!("und")),
    "HELLO WORLD"
);
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pub fn as_borrowed(&self) -> CaseMapperBorrowed<'_>

Constructs a borrowed version of this type for more efficient querying.

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pub fn try_new_with_buffer_provider( provider: &(impl BufferProvider + ?Sized), ) -> Result<Self, DataError>

A version of [Self :: new] that uses custom data provided by a BufferProvider.

Enabled with the serde feature.

📚 Help choosing a constructor

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pub fn try_new_unstable<P>(provider: &P) -> Result<CaseMapper, DataError>
where P: DataProvider<CaseMapV1> + ?Sized,

A version of Self::new that uses custom data provided by a DataProvider.

📚 Help choosing a constructor

⚠️ The bounds on provider may change over time, including in SemVer minor releases.

Trait Implementations§

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impl AsRef<CaseMapper> for CaseMapper

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fn as_ref(&self) -> &CaseMapper

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for CaseMapper

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fn clone(&self) -> CaseMapper

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for CaseMapper

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

Formats the value using the given formatter. Read more

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 u8)

🔬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,