pub trait RawDecoder: 'static {
// Required methods
fn from_self(&self) -> Box<dyn RawDecoder>;
fn raw_feed(
&mut self,
input: &[u8],
output: &mut dyn StringWriter,
) -> (usize, Option<CodecError>);
fn raw_finish(
&mut self,
output: &mut dyn StringWriter,
) -> Option<CodecError>;
// Provided method
fn is_ascii_compatible(&self) -> bool { ... }
}
Expand description
Decoder converting a byte sequence into a Unicode string.
This is a lower level interface, and normally Encoding::decode
should be used instead.
Required Methods§
Sourcefn from_self(&self) -> Box<dyn RawDecoder>
fn from_self(&self) -> Box<dyn RawDecoder>
Creates a fresh RawDecoder
instance which parameters are same as self
.
Sourcefn raw_feed(
&mut self,
input: &[u8],
output: &mut dyn StringWriter,
) -> (usize, Option<CodecError>)
fn raw_feed( &mut self, input: &[u8], output: &mut dyn StringWriter, ) -> (usize, Option<CodecError>)
Feeds given portion of byte sequence to the encoder,
pushes the a decoded string at the end of the given output,
and returns an offset to the first unprocessed byte
(that can be zero when the first such byte appeared in the prior calls to raw_feed
)
and optional error information (None means success).
Sourcefn raw_finish(&mut self, output: &mut dyn StringWriter) -> Option<CodecError>
fn raw_finish(&mut self, output: &mut dyn StringWriter) -> Option<CodecError>
Finishes the decoder, pushes the a decoded string at the end of the given output, and returns optional error information (None means success).
Provided Methods§
Sourcefn is_ascii_compatible(&self) -> bool
fn is_ascii_compatible(&self) -> bool
Returns true if this encoding is compatible to ASCII, i.e. bytes 00 through 7F always map to U+0000 through U+007F and nothing else.