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Collator

Struct Collator 

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

compares texts in the order of a language (see the module comment); copy it freely

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impl Collator

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pub fn new(tag: &str) -> Collator

the collator of a language (a BCP 47 tag or a POSIX name; unknown languages sort by the common rules); “-u-co-phonebk”, “-u-kn” and “-u-ks-level1 / 2 / 3 / identic” set the options as in ICU, also “de-DE_phoneb” (Windows) and “@collation=phonebook” (POSIX)

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pub fn strength(self, s: u32) -> Collator

the same collator with another strength (COLL_PRIMARY .. COLL_IDENTICAL)

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pub fn numeric(self, on: bool) -> Collator

numbers by their value: “Datei 2” before “Datei 10”, “007” = “7” up to the tertiary level

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pub fn phonebook(self, on: bool) -> Collator

German phone book order (ä = ae, ö = oe, ü = ue); no effect in other languages

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pub fn compare(&self, a: &str, b: &str) -> Ordering

compare two texts

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pub fn key(&self, s: &str) -> Vec<u32>

the sort key of a text: keys compare as their texts do (sort_by_cached_key, indexes)

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pub fn sort<T>(&self, items: &mut [T], text: impl Fn(&T) -> &str)

sort items by a text of each (stable; each key is computed once)

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impl Clone for Collator

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for Collator

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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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> ErasedDestructor for T
where T: 'static,

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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> 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 = !

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

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.