#[non_exhaustive]
pub enum CollationNumericOrdering { True, False, }
Expand description

Collation parameter key for numeric handling.

If set to on, any sequence of Decimal Digits (General_Category = Nd in the UAX44) is sorted at a primary level with its numeric value. For example, “1” < “2” < “10”. The computed primary weights are all at the start of the digit reordering group.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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True

A sequence of decimal digits is sorted at primary level with its numeric value

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False

No special handling for numeric ordering

Implementations§

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impl CollationNumericOrdering

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pub const fn as_str(&self) -> &str

A helper function for displaying as a &str.

Trait Implementations§

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impl Clone for CollationNumericOrdering

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fn clone(&self) -> CollationNumericOrdering

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 Debug for CollationNumericOrdering

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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 Default for CollationNumericOrdering

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fn default() -> CollationNumericOrdering

Returns the “default value” for a type. Read more
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impl From<CollationNumericOrdering> for Value

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fn from(input: CollationNumericOrdering) -> Value

Converts to this type from the input type.
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impl Hash for CollationNumericOrdering

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for CollationNumericOrdering

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PreferenceKey for CollationNumericOrdering

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fn unicode_extension_key() -> Option<Key>

Retrieve unicode extension key corresponding to a given preference.
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fn try_from_key_value( key: &Key, value: &Value, ) -> Result<Option<CollationNumericOrdering>, PreferencesParseError>

Optional constructor of the given preference. It takes the unicode extension key and if the key matches it attemptes to construct the preference based on the given value. If the value is not a valid value for the given key, the constructor throws.
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fn unicode_extension_value(&self) -> Option<Value>

Retrieve unicode extension value corresponding to the given instance of the preference.
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impl TryFrom<&Value> for CollationNumericOrdering

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type Error = PreferencesParseError

The type returned in the event of a conversion error.
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fn try_from( s: &Value, ) -> Result<CollationNumericOrdering, <CollationNumericOrdering as TryFrom<&Value>>::Error>

Performs the conversion.
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impl Copy for CollationNumericOrdering

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impl Eq for CollationNumericOrdering

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impl StructuralPartialEq for CollationNumericOrdering

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> GetField<T> for T
where T: Copy,

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fn get_field(&self) -> T

Returns the value of this trait’s field T.
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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,