Struct moore::lexer::AccumulatingReader

pub struct AccumulatingReader { /* fields omitted */ }

Implementations

impl AccumulatingReader

pub fn new(rd: Box<dyn Read + 'static, Global>) -> AccumulatingReader

pub fn refill(&mut self, min_len: usize)

Grow and fill the internal buffer such that at least min_len characters are present, or the end of the file has been reached. This function may shift the buffer contents around, in which case previous buffer indices become invalid. Recalculate all indices derived from base, pos, or tail after a call to this function.

pub fn slice(&self) -> &[u8]

Return a slice of the consumed bytes.

pub fn rem_slice(&self) -> &[u8]

Return a slice of the remaining bytes, starting at the last call to clear().

Trait Implementations

impl Reader for AccumulatingReader

pub fn peek(&mut self, off: usize) -> Option<char>

Return the value of the byte that is off bytes away from the current position in the input file. If the off lies beyond the end of file, None is returned.

pub fn consume(&mut self, amt: usize)

Consume the next amt bytes of the input. All consumed bytes since the last clear() can be accessed via slice() or to_string().

pub fn clear(&mut self)

Clear the consumed bytes.

pub fn to_string(&self) -> String

Convert the consumed bytes to a String.