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#![no_std]

extern crate alloc;

pub mod lex;
pub mod parse;

pub use lex::Token;
pub use parse::{Command, Error, Intro, Parse, Rule, Term};

use logos::Logos;

pub fn lex(s: &str) -> impl Iterator<Item = Token> {
    Token::lexer(s).filter(|token| *token != Token::Space)
}

#[cfg(feature = "itertools")]
use alloc::vec::Vec;

#[cfg(feature = "itertools")]
pub fn lexes(s: &str) -> impl Iterator<Item = Result<Vec<Token>, Error>> {
    use itertools::Itertools;
    Token::lexer(s).batching(parse::until_period)
}