//! Filter expression language.
//!
//! This module contains methods to parse a given string into an abstract filter tree, check its
//! type and convert it to a [`Filter`][super::filters::Filter].
// Make it available in the grammar mod.
use super::{filters, FightOutcome, SearchField, Weekday};
use lalrpop_util::lalrpop_mod;

use thiserror::Error;

lalrpop_mod!(pub grammar, "/fexpr/grammar.rs");

#[derive(Debug, Error)]
pub enum FError {
    #[error("invalid regular expression: {0}")]
    InvalidRegex(String),
    #[error("invalid fight outcome: {0}")]
    InvalidFightOutcome(String),
    #[error("invalid weekday: {0}")]
    InvalidWeekday(String),
    #[error("invalid timestamp: {0}")]
    InvalidTimestamp(String),
    #[error("invalid boss name: {0}")]
    InvalidBoss(String),
}