teleparse 0.1.2

teleparse
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use teleparse::prelude::*;

#[derive_lexicon]
#[teleparse(ignore(r"\s"))] // ignore whitespaces
pub enum TokenType {

    /// Numbers in the expression
    #[teleparse(regex(r"\d+"), terminal(Integer))]
    Integer,

    /// The 4 basic operators
    #[teleparse(terminal(
        OpAdd = "+", 
        OpMul = "*", 
    ))]
    Operator,

    /// Parentheses
    #[teleparse(terminal(ParenOpen = "(", ParenClose = ")"))]
    Paren,
}