[−][src]Struct rosy::string::Encoding
An encoding for String
.
Methods
impl Encoding
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pub fn ascii_8bit() -> Encoding
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Returns the ASCII-8BIT
encoding.
Examples
This is essentially an "anything goes" encoding:
use rosy::string::{String, Encoding}; let bytes: &[u8] = &[b'a', b'z', 0, 255]; let string = String::from(bytes); assert_eq!(string.encoding(), Encoding::ascii_8bit());
pub fn utf8() -> Encoding
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Returns the UTF-8
encoding.
Examples
use rosy::string::Encoding; let utf8 = Encoding::find("UTF-8\0").unwrap(); assert_eq!(utf8, Encoding::utf8());
pub fn us_ascii() -> Encoding
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Returns the US-ASCII
encoding.
Examples
use rosy::string::Encoding; let ascii = Encoding::find("US-ASCII\0").unwrap(); assert_eq!(ascii, Encoding::us_ascii());
pub fn find<E>(encoding: E) -> Result<Self, EncodingLookupError> where
E: TryInto<Self, Error = EncodingLookupError>,
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E: TryInto<Self, Error = EncodingLookupError>,
Attempts to find encoding
, returning an error if either:
encoding
cannot be passed in as a nul-terminated C string.- The requested encoding was not found.
Examples
Looking up an encoding is straightforward since Rust allows for embedding nul bytes in its UTF-8 strings:
use rosy::string::Encoding; let utf8 = Encoding::find("UTF-8\0").unwrap(); let ascii = Encoding::find("US-ASCII\0").unwrap(); assert_ne!(utf8, ascii);
pub fn name(&self) -> &CStr
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Returns the encoding's name.
Examples
use rosy::string::Encoding; assert_eq!(Encoding::utf8().name().to_bytes(), b"UTF-8");
pub fn is_ascii_8bit(self) -> bool
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Returns whether self
is ASCII-8BIT
.
pub fn is_utf8(self) -> bool
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Returns whether self
is UTF-8
.
pub fn is_us_ascii(self) -> bool
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Returns whether self
is US-ASCII
.
pub fn is_locale(self) -> bool
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Returns whether self
is the locale encoding.
pub fn is_filesystem(self) -> bool
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Returns whether self
is the filesystem encoding.
pub fn is_default_external(self) -> bool
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Returns whether self
is the default external encoding.
pub fn is_default_internal(self) -> bool
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Returns whether self
is the default internal encoding.
Trait Implementations
impl Classify for Encoding
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impl Object for Encoding
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fn cast<A: Object>(obj: A) -> Option<Self>
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fn unique_id() -> Option<u128>
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Returns a unique identifier for an object type to facilitate casting. Read more
unsafe fn from_raw(raw: usize) -> Self
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Creates a new object from raw
without checking. Read more
unsafe fn cast_unchecked(obj: impl Object) -> Self
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Casts obj
to Self
without checking its type.
fn into_any_object(self) -> AnyObject
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Returns self
as an AnyObject
.
fn as_any_object(&self) -> &AnyObject
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Returns a reference to self
as an AnyObject
.
fn as_any_slice(&self) -> &[AnyObject]
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Returns self
as a reference to a single-element slice.
fn raw(self) -> usize
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Returns the raw object pointer.
unsafe fn as_unchecked<O: Object>(&self) -> &O
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Casts self
to O
without checking whether it is one.
unsafe fn into_unchecked<O: Object>(self) -> O
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Converts self
to O
without checking whether it is one.
fn id(self) -> u64
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Returns the object's identifier.
fn ty(self) -> Ty
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Returns the virtual type of self
.
fn is_ty(self, ty: Ty) -> bool
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Returns whether the virtual type of self
is ty
.
fn class(self) -> Class<Self>
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Returns the Class
for self
. Read more
fn singleton_class(self) -> Class<Self>
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Returns the singleton Class
of self
, creating one if it doesn't exist already. Read more
fn mark(self)
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Marks self
for Ruby to avoid garbage collecting it.
unsafe fn force_recycle(self)
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Forces the garbage collector to free the contents of self
. Read more
fn def_singleton_method<N, F>(self, name: N, f: F) -> Result where
N: Into<SymbolId>,
F: MethodFn<Self>,
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N: Into<SymbolId>,
F: MethodFn<Self>,
Defines a method for name
on the singleton class of self
that calls f
when invoked. Read more
unsafe fn def_singleton_method_unchecked<N, F>(self, name: N, f: F) where
N: Into<SymbolId>,
F: MethodFn<Self>,
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N: Into<SymbolId>,
F: MethodFn<Self>,
Defines a method for name
on the singleton class of self
that calls f
when invoked. Read more
unsafe fn call(self, method: impl Into<SymbolId>) -> AnyObject
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Calls method
on self
and returns its output. Read more
unsafe fn call_protected(self, method: impl Into<SymbolId>) -> Result<AnyObject>
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Calls method
on self
and returns its output, or an exception if one is raised. Read more
unsafe fn call_with(
self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> AnyObject
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self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> AnyObject
Calls method
on self
with args
and returns its output. Read more
unsafe fn call_with_protected(
self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> Result<AnyObject>
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self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> Result<AnyObject>
Calls method
on self
with args
and returns its output, or an exception if one is raised. Read more
unsafe fn call_public(self, method: impl Into<SymbolId>) -> AnyObject
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Calls the public method
on self
and returns its output. Read more
unsafe fn call_public_protected(
self,
method: impl Into<SymbolId>
) -> Result<AnyObject>
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self,
method: impl Into<SymbolId>
) -> Result<AnyObject>
Calls the public method
on self
and returns its output, or an exception if one is raised. Read more
unsafe fn call_public_with(
self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> AnyObject
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self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> AnyObject
Calls the public method
on self
with args
and returns its output. Read more
unsafe fn call_public_with_protected(
self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> Result<AnyObject>
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self,
method: impl Into<SymbolId>,
args: &[impl Object]
) -> Result<AnyObject>
Calls the public method
on self
with args
and returns its output, or an exception if one is raised. Read more
fn inspect(self) -> String
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Returns a printable string representation of self
. Read more
fn to_s(self) -> String
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Returns the result of calling the to_s
method on self
.
fn is_frozen(self) -> bool
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Returns whether modifications can be made to self
.
fn freeze(self)
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Freezes self
, preventing any further mutations.
fn is_eql<O: Object>(self, other: &O) -> bool
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Returns whether self
is equal to other
in terms of the eql?
method. Read more
fn get_attr<N: Into<SymbolId>>(self, name: N) -> AnyObject
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Returns the value for the attribute of self
associated with name
.
unsafe fn eval(self, args: impl EvalArgs) -> AnyObject
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Evaluates args
in the context of self
. Read more
unsafe fn eval_protected(self, args: impl EvalArgs) -> Result<AnyObject>
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Evaluates args
in the context of self
, returning any raised exceptions. Read more
impl Clone for Encoding
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fn clone(&self) -> Encoding
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fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl PartialEq<AnyObject> for Encoding
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fn eq(&self, obj: &AnyObject) -> bool
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#[must_use]
fn ne(&self, other: &Rhs) -> bool
1.0.0[src]
This method tests for !=
.
impl PartialEq<Encoding> for Encoding
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fn eq(&self, other: &Self) -> bool
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#[must_use]
fn ne(&self, other: &Rhs) -> bool
1.0.0[src]
This method tests for !=
.
impl Eq for Encoding
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impl AsRef<AnyObject> for Encoding
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impl From<Encoding> for AnyObject
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impl Copy for Encoding
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impl Debug for Encoding
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impl Display for Encoding
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impl<'_> TryFrom<&'_ CStr> for Encoding
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type Error = EncodingLookupError
The type returned in the event of a conversion error.
fn try_from(s: &CStr) -> Result<Self, Self::Error>
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impl<'_> TryFrom<&'_ CString> for Encoding
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type Error = EncodingLookupError
The type returned in the event of a conversion error.
fn try_from(s: &CString) -> Result<Self, Self::Error>
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impl<'_> TryFrom<&'_ [u8]> for Encoding
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type Error = EncodingLookupError
The type returned in the event of a conversion error.
fn try_from(bytes: &[u8]) -> Result<Self, Self::Error>
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impl<'_> TryFrom<&'_ Vec<u8>> for Encoding
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type Error = EncodingLookupError
The type returned in the event of a conversion error.
fn try_from(bytes: &Vec<u8>) -> Result<Self, Self::Error>
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impl<'_> TryFrom<&'_ str> for Encoding
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type Error = EncodingLookupError
The type returned in the event of a conversion error.
fn try_from(s: &str) -> Result<Self, Self::Error>
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impl<'_> TryFrom<&'_ String> for Encoding
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Auto Trait Implementations
Blanket Implementations
impl<T> From<T> for T
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impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,