Struct tokay::reader::Reader

pub struct Reader { /* private fields */ }

Implementations

impl Reader

pub fn new(reader: Box<dyn BufRead>) -> Self

Creates a new reader on buffer read.

pub fn next(&mut self) -> Option<char>

pub fn peek(&mut self) -> Option<char>

pub fn tell(&self) -> Offset

pub fn eof(&mut self) -> bool

pub fn reset(&mut self, offset: Offset)

pub fn capture_last(&self, length: usize) -> Range

Capture last length characters.

pub fn capture_from(&self, start: &Offset) -> Range

pub fn print(&self, start: usize)

pub fn get(&self, range: &Range) -> &str

Get slice from range

pub fn commit(&mut self)

Commits current input buffer and removes cached content

pub fn take<F>(&mut self, accept: F) -> Option<char> where
    F: Fn(char) -> bool, 

Take one character accepted by callback

pub fn span<F>(&mut self, accept: F) -> Option<&str> where
    F: Fn(char) -> bool + Copy, 

Read while conditional callback accepts characters