Struct icu::properties::props::IdStart
source · #[non_exhaustive]pub struct IdStart;
Expand description
Characters that can begin an identifier.
If using NFKC to fold differences between
characters, use XidStart
instead. See Unicode Standard Annex #31
for more details.
§Example
use icu::properties::CodePointSetData;
use icu::properties::props::IdStart;
let id_start = CodePointSetData::new::<IdStart>();
assert!(id_start.contains('x'));
assert!(!id_start.contains('1'));
assert!(!id_start.contains('_'));
assert!(id_start.contains('ߝ')); // U+07DD NKO LETTER FA
assert!(!id_start.contains('ⓧ')); // U+24E7 CIRCLED LATIN SMALL LETTER X
assert!(id_start.contains('\u{FC5E}')); // ARABIC LIGATURE SHADDA WITH DAMMATAN ISOLATED FORM
Trait Implementations§
source§impl BinaryProperty for IdStart
impl BinaryProperty for IdStart
Auto Trait Implementations§
impl Freeze for IdStart
impl RefUnwindSafe for IdStart
impl Send for IdStart
impl Sync for IdStart
impl Unpin for IdStart
impl UnwindSafe for IdStart
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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