[−][src]Struct generic_lexer::LexerInput
Methods
impl<'a> LexerInput<'a>
[src]
pub fn peek(&mut self) -> Option<char>
[src]
Peek at the next character
pub fn next(&mut self) -> Option<char>
[src]
Retrieve the next character and increment the input position
pub fn accept<P: Fn(&char) -> bool>(&mut self, predicate: P) -> Option<char>
[src]
Call self.next()
if the peeked character is identical to b
pub fn accept_while<P: Fn(&char) -> bool>(&mut self, predicate: P)
[src]
Call self.next()
while the peeked character fulfils predicate
pub fn accept_or<P: Fn(&char) -> bool, T>(
&mut self,
predicate: P,
ok: T,
default: T
) -> T
[src]
&mut self,
predicate: P,
ok: T,
default: T
) -> T
Accept the given byte and return ok
, or else return default
This is useful for matching multi-character tokens:
match c { b'=' => input.accept_or(b'=', TokenKind::DoubleEquals, TokenKind::Equals), _ => {}, }
pub fn skip_whitespace(&mut self)
[src]
Skip whitespace, preserving the original buffer before any whitespace was encountered
Auto Trait Implementations
impl<'a> RefUnwindSafe for LexerInput<'a>
impl<'a> Send for LexerInput<'a>
impl<'a> Sync for LexerInput<'a>
impl<'a> Unpin for LexerInput<'a>
impl<'a> UnwindSafe for LexerInput<'a>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
[src]
impl<T> From<T> for T
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
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>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,