pub struct Utf8Chunk<'a> {
valid: &'a str,
invalid: &'a [u8],
}
Expand description
An item returned by the Utf8Chunks
iterator.
A Utf8Chunk
stores a sequence of u8
up to the first broken character
when decoding a UTF-8 string.
§Examples
// An invalid UTF-8 string
let bytes = b"foo\xF1\x80bar";
// Decode the first `Utf8Chunk`
let chunk = bytes.utf8_chunks().next().unwrap();
// The first three characters are valid UTF-8
assert_eq!("foo", chunk.valid());
// The fourth character is broken
assert_eq!(b"\xF1\x80", chunk.invalid());
Fields§
§valid: &'a str
§invalid: &'a [u8]
Implementations§
source§impl<'a> Utf8Chunk<'a>
impl<'a> Utf8Chunk<'a>
1.79.0 · sourcepub fn valid(&self) -> &'a str
pub fn valid(&self) -> &'a str
Returns the next validated UTF-8 substring.
This substring can be empty at the start of the string or between broken UTF-8 characters.
1.79.0 · sourcepub fn invalid(&self) -> &'a [u8] ⓘ
pub fn invalid(&self) -> &'a [u8] ⓘ
Returns the invalid sequence that caused a failure.
The returned slice will have a maximum length of 3 and starts after the
substring given by valid
. Decoding will resume after this sequence.
If empty, this is the last chunk in the string. If non-empty, an unexpected byte was encountered or the end of the input was reached unexpectedly.
Lossy decoding would replace this sequence with U+FFFD REPLACEMENT CHARACTER
.
Trait Implementations§
1.79.0 · source§impl<'a> PartialEq for Utf8Chunk<'a>
impl<'a> PartialEq for Utf8Chunk<'a>
impl<'a> Eq for Utf8Chunk<'a>
impl<'a> StructuralPartialEq for Utf8Chunk<'a>
Auto Trait Implementations§
impl<'a> Freeze for Utf8Chunk<'a>
impl<'a> RefUnwindSafe for Utf8Chunk<'a>
impl<'a> Send for Utf8Chunk<'a>
impl<'a> Sync for Utf8Chunk<'a>
impl<'a> Unpin for Utf8Chunk<'a>
impl<'a> UnwindSafe for Utf8Chunk<'a>
Blanket Implementations§
§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
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> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Checks if this value is equivalent to the given key. Read more
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Checks if this value is equivalent to the given key. Read more
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
§impl<T> Pointee for T
impl<T> Pointee for T
source§impl<T> Upcastable for T
impl<T> Upcastable for T
source§fn upcast_any_ref(&self) -> &(dyn Any + 'static)
fn upcast_any_ref(&self) -> &(dyn Any + 'static)
upcast ref
source§fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
upcast mut ref