pub enum Error {
    ExceededDepthRange,
}

#[derive(PartialEq)]
pub enum TokenKind<'t> {
    Normal,
    Comment,
    String,
    Number,
    Operator,
    Symbol,
    Literal,
    Function,
    Keyword,
    KeywordAlt,
    Custom(&'t str)
}

impl <'t> Into<&'t str> for TokenKind<'t> {
    fn into(self) -> &'t str {
        match self {
            TokenKind::Normal => "normal",
            TokenKind::Comment => "comment",
            TokenKind::String => "string",
            TokenKind::Number => "number",
            TokenKind::Operator => "operator",
            TokenKind::Symbol => "symbol",
            TokenKind::Literal => "literal",
            TokenKind::Function => "function",
            TokenKind::Keyword => "keyword",
            TokenKind::KeywordAlt => "keyword2",
            TokenKind::Custom(custom_kind) => custom_kind
        }
    }
}

pub struct Token<'t> {
    pub token_type: TokenKind<'t>,
    pub value: String
}