Struct chomp::buffer::Source

pub struct Source<S: DataSource, B: Buffer<S::Item>> {
    // some fields omitted
}

Manages a buffer and data source pair, enabling efficient parsing from a streaming source.

Methods

impl<R: Read> Source<ReadDataSource<R>, FixedSizeBuffer<u8>>

fn new(source: R) -> Self

impl<R: Read, B: Buffer<u8>> Source<ReadDataSource<R>, B>

fn from_read(source: R, buffer: B) -> Self

impl<I: Iterator, B: Buffer<I::Item>> Source<IteratorDataSource<I>, B>

fn from_iter(source: I, buffer: B) -> Self

impl<S: DataSource, B: Buffer<S::Item>> Source<S, B>

fn with_buffer(source: S, buffer: B) -> Self

fn fill(&mut self) -> Result<usize>

Attempts to fill the buffer to satisfy the last call to parse().

fn len(&self) -> usize

the number of bytes left in the buffer.

fn is_empty(&self) -> bool

If the buffer is empty and the reader has reached the end.

fn capacity(&self) -> usize

fn buffer(&self) -> &[S::Item]

Borrows the remainder of the buffer.

fn reset(&mut self)

Resets the buffer state, keeping the current buffer contents and cursor position.

fn set_autofill(&mut self, value: bool)

Changes the setting automatic fill feature, true will make the buffer automatically call fill() on the next call to parse() after a Retry was encountered.

Trait Implementations

impl<S: Debug + DataSource, B: Debug + Buffer<S::Item>> Debug for Source<S, B>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<S: DataSource<Item=u8>, B: Buffer<u8>> Read for Source<S, B>

fn read(&mut self, buf: &mut [u8]) -> Result<usize>

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill buf.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an Iterator over its bytes.

fn chars(self) -> Chars<Self>

Unstable (io)

: the semantics of a partial read/write of where errors happen is currently unclear and may change

Transforms this Read instance to an Iterator over chars.

fn chain<R>(self, next: R) -> Chain<Self, R> where R: Read

Creates an adaptor which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

Creates an adaptor which will read at most limit bytes from it.

impl<S: DataSource<Item=u8>, B: Buffer<u8>> BufRead for Source<S, B>

fn fill_buf(&mut self) -> Result<&[u8]>

Fills the internal buffer of this object, returning the buffer contents.

fn consume(&mut self, num: usize)

Tells this buffer that amt bytes have been consumed from the buffer, so they should no longer be returned in calls to read.

fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize, Error>

Read all bytes into buf until the delimiter byte is reached.

fn read_line(&mut self, buf: &mut String) -> Result<usize, Error>

Read all bytes until a newline (the 0xA byte) is reached, and append them to the provided buffer.

fn split(self, byte: u8) -> Split<Self>

Returns an iterator over the contents of this reader split on the byte byte.

fn lines(self) -> Lines<Self>

Returns an iterator over the lines of this reader.

impl<'a, S: DataSource, B: Buffer<S::Item>> Stream<'a, 'a> for Source<S, B> where S::Item: 'a

type Item = S::Item

fn parse<F, T, E>(&'a mut self, f: F) -> Result<T, StreamError<'a, Self::Item, E>> where F: FnOnce(Input<'a, Self::Item>) -> ParseResult<'a, Self::Item, T, E>, T: 'a, E: 'a