OverComplicatedCalculator/src/lexer/errors.rs

use thiserror::Error;

#[derive(Error, Debug)]
pub enum LexerErrors {
    #[error("unexpected character {char} at position {pos}")]
    UnexpectedCharacter {
        char: char,
        pos: usize,
    },
    #[error("cannot lex an empty text sequence")]
    EmptyTextSequenceError,
}