Trait pest::Parser

pub trait Parser {
    type Rules;
    fn matches(&mut self, string: &str) -> bool;
    fn between(&mut self, left: char, right: char) -> bool;
    fn try<F>(&mut self, revert: bool, rule: F) -> bool where F: FnOnce(&mut Self) -> bool;
    fn pos(&self) -> usize;
    fn set_pos(&mut self, pos: usize);
    fn end(&self) -> bool;
    fn reset(&mut self);
    fn queue(&mut self) -> &mut VecDeque<Self::Rules>;
    fn skip_ws(&mut self);
}

A trait that defines a parser.

Associated Types

type Rules

Required Methods

fn matches(&mut self, string: &str) -> bool

Matches string, returns whether it matched, and advances a parser with string.len() in case it did.

fn between(&mut self, left: char, right: char) -> bool

Matches char between left and right, and advances a parser with one char in case it did.

fn try<F>(&mut self, revert: bool, rule: F) -> bool where F: FnOnce(&mut Self) -> bool

Tries to match rule, returns whether it matched, and advances a parser with in case it did. If revert is true, the parser will not advance.

fn pos(&self) -> usize

Returns the current position of a Parser.

fn set_pos(&mut self, pos: usize)

Sets the position of a Parser.

fn end(&self) -> bool

Returns whether a Parser has reached it end.

fn reset(&mut self)

Reset a Parser.

fn queue(&mut self) -> &mut VecDeque<Self::Rules>

Returns the queue of all matched Rules.

fn skip_ws(&mut self)

Skips white-space.

Implementors