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//! 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, lexer::Token, ParseError};
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),
}
pub fn parse_logfilter(
input: &str,
) -> Result<Box<dyn filters::log::LogFilter>, ParseError<usize, Token, FError>> {
grammar::LogFilterParser::new().parse(input)
}
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