Struct ascii::AsciiStr
[−]
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pub struct AsciiStr { // some fields omitted }
A borrowed ascii string, like a slice into an AsciiString
.
Methods
impl AsciiStr
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fn new<S: AsRef<AsciiStr> + ?Sized>(s: &S) -> &AsciiStr
Coerces into an AsciiStr
slice.
fn as_str(&self) -> &str
Converts &self
to a &str
slice.
fn to_ascii_string(&self) -> AsciiString
Copies the content of this AsciiStr
into an owned AsciiString
.
fn as_bytes(&self) -> &[u8]
Converts &self
into a byte slice.
fn from_bytes<'a, B: ?Sized>(bytes: &'a B) -> Option<&'a AsciiStr> where B: AsRef<[u8]>
Converts anything that can represent a byte slice into an AsciiStr
.
Failure
Returns None
if the byte slice can not be ascii encoded.
Examples
let foo = AsciiStr::from_bytes("foo").unwrap(); let err = AsciiStr::from_bytes("Ŋ"); assert_eq!(foo.as_str(), "foo"); assert_eq!(err, None);
fn from_str<'a>(s: &'a str) -> Option<&'a AsciiStr>
Converts a borrowed string to a borrows ascii string.
Failure
Returns None
if the byte slice can not be ascii encoded.
fn len(&self) -> usize
Returns the number of bytes in this ascii string.
Examples
let s = AsciiStr::from_bytes("foo").unwrap(); assert_eq!(s.len(), 3);
fn is_empty(&self) -> bool
Returns true if the ascii string contains no bytes.
Examples
let mut empty = AsciiStr::from_bytes("").unwrap(); let mut full = AsciiStr::from_bytes("foo").unwrap(); assert!(empty.is_empty()); assert!(!full.is_empty());
Trait Implementations
impl Hash for AsciiStr
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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
Feeds this value into the state given, updating the hasher as necessary.
fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher
1.3.0
Feeds a slice of this type into the state provided.
impl PartialEq for AsciiStr
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fn eq(&self, other: &AsciiStr) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Rhs) -> bool
1.0.0
This method tests for !=
.
impl Eq for AsciiStr
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impl PartialOrd for AsciiStr
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fn partial_cmp(&self, other: &AsciiStr) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, other: &AsciiStr) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &AsciiStr) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &AsciiStr) -> bool
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &AsciiStr) -> bool
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl Ord for AsciiStr
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fn cmp(&self, other: &AsciiStr) -> Ordering
This method returns an Ordering
between self
and other
. Read more
impl ToOwned for AsciiStr
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type Owned = AsciiString
fn to_owned(&self) -> AsciiString
Creates owned data from borrowed data, usually by cloning. Read more
impl AsRef<[u8]> for AsciiStr
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impl AsRef<str> for AsciiStr
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impl Display for AsciiStr
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impl Debug for AsciiStr
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impl<'a> PartialEq<String> for &'a AsciiStr
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fn eq(&self, other: &String) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &String) -> bool
This method tests for !=
.
impl<'a> PartialEq<AsciiString> for &'a AsciiStr
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fn eq(&self, other: &AsciiString) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &AsciiString) -> bool
This method tests for !=
.
impl PartialEq<str> for AsciiStr
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fn eq(&self, other: &str) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Rhs) -> bool
1.0.0
This method tests for !=
.
impl Index<usize> for AsciiStr
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type Output = Ascii
The returned type after indexing
fn index(&self, index: usize) -> &Ascii
The method for the indexing (Foo[Bar]
) operation
impl IndexMut<usize> for AsciiStr
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fn index_mut(&mut self, index: usize) -> &mut Ascii
The method for the indexing (Foo[Bar]
) operation
impl Index<Range<usize>> for AsciiStr
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type Output = AsciiStr
The returned type after indexing
fn index(&self, index: Range<usize>) -> &AsciiStr
The method for the indexing (Foo[Bar]
) operation
impl IndexMut<Range<usize>> for AsciiStr
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fn index_mut(&mut self, index: Range<usize>) -> &mut AsciiStr
The method for the indexing (Foo[Bar]
) operation
impl Index<RangeTo<usize>> for AsciiStr
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type Output = AsciiStr
The returned type after indexing
fn index(&self, index: RangeTo<usize>) -> &AsciiStr
The method for the indexing (Foo[Bar]
) operation
impl IndexMut<RangeTo<usize>> for AsciiStr
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fn index_mut(&mut self, index: RangeTo<usize>) -> &mut AsciiStr
The method for the indexing (Foo[Bar]
) operation
impl Index<RangeFrom<usize>> for AsciiStr
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type Output = AsciiStr
The returned type after indexing
fn index(&self, index: RangeFrom<usize>) -> &AsciiStr
The method for the indexing (Foo[Bar]
) operation
impl IndexMut<RangeFrom<usize>> for AsciiStr
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fn index_mut(&mut self, index: RangeFrom<usize>) -> &mut AsciiStr
The method for the indexing (Foo[Bar]
) operation
impl Index<RangeFull> for AsciiStr
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type Output = AsciiStr
The returned type after indexing
fn index(&self, index: RangeFull) -> &AsciiStr
The method for the indexing (Foo[Bar]
) operation