Trait pear::Input

pub trait Input: Sized + Debug {
    type Token: PartialEq + Copy + Debug;
    type Slice: PartialEq + Clone + Debug + Length;
    type InSlice: PartialEq + Clone + Debug + Length;
    type Many: Length;
    type Context: Display;
    fn peek(&mut self) -> Option<Self::Token>;
    fn peek_slice(&mut self, _: Self::InSlice) -> Option<Self::Slice>;
    fn advance(&mut self, _: usize);
    fn is_empty(&mut self) -> bool;
    fn take_many<F: FnMut(Self::Token) -> bool>(
        &mut self, 
        cond: F
    ) -> Self::Many;
    fn skip_many<F: FnMut(Self::Token) -> bool>(&mut self, cond: F) -> usize;

    fn context(&mut self) -> Option<Self::Context> { ... }
}

Associated Types

type Token: PartialEq + Copy + Debug

type Slice: PartialEq + Clone + Debug + Length

type InSlice: PartialEq + Clone + Debug + Length

type Many: Length

type Context: Display

Required Methods

fn peek(&mut self) -> Option<Self::Token>

fn peek_slice(&mut self, _: Self::InSlice) -> Option<Self::Slice>

fn advance(&mut self, _: usize)

fn is_empty(&mut self) -> bool

fn take_many<F: FnMut(Self::Token) -> bool>(&mut self, cond: F) -> Self::Many

fn skip_many<F: FnMut(Self::Token) -> bool>(&mut self, cond: F) -> usize

Provided Methods

fn context(&mut self) -> Option<Self::Context>

Implementations on Foreign Types

impl<'a> Input for &'a str

type Token = char

type InSlice = &'a str

type Slice = &'a str

type Many = Self::Slice

type Context = &'a str

fn peek(&mut self) -> Option<Self::Token>

fn peek_slice(&mut self, slice: Self::InSlice) -> Option<Self::Slice>

fn skip_many<F>(&mut self, cond: F) -> usize where     F: FnMut(Self::Token) -> bool,

fn take_many<F>(&mut self, cond: F) -> Self::Many where     F: FnMut(Self::Token) -> bool,

fn advance(&mut self, count: usize)

fn is_empty(&mut self) -> bool

fn context(&mut self) -> Option<Self::Context>

impl<'a> Input for &'a [u8]

type Token = u8

type InSlice = &'a [u8]

type Slice = &'a [u8]

type Many = Self::Slice

type Context = &'a str

fn peek(&mut self) -> Option<Self::Token>

fn peek_slice(&mut self, slice: Self::InSlice) -> Option<Self::Slice>

fn skip_many<F>(&mut self, cond: F) -> usize where     F: FnMut(Self::Token) -> bool,

fn take_many<F>(&mut self, cond: F) -> Self::Many where     F: FnMut(Self::Token) -> bool,

fn advance(&mut self, count: usize)

fn is_empty(&mut self) -> bool

fn context(&mut self) -> Option<Self::Context>

Implementors

• impl<'a> Input for Text<'a> type Token = char; type InSlice = &'a str; type Slice = &'a str; type Many = Self::Slice; type Context = Position;

• impl<'s> Input for StringFile<'s> type Token = char; type InSlice = &'s str; type Slice = &'s str; type Many = String; type Context = &'s str;